CN221222942U - Indoor unit of air conditioner - Google Patents

Abstract

The utility model discloses an air conditioner indoor unit, which comprises: the air conditioner comprises a shell, a heat exchanger, a fan assembly and an electric box, wherein the shell is provided with an air inlet and an air outlet; the fan assembly comprises a motor, a fan and a mounting part, wherein the mounting part is provided with a through hole, a fixed mounting area and a volute cavity are formed on the mounting part, the motor is arranged in the fixed mounting area, the fan is arranged in the volute cavity, and the volute cavity is communicated with the through hole; wherein, the electrical box is provided with a mounting substrate and a plurality of circuit boards, the mounting substrate is provided with a preassembling part and a locking part, and the circuit boards are arranged on the mounting substrate; the electrical box is provided with a preassembly part and a locking matching part, the preassembly part is arranged on the preassembly part, and the locking matching part is arranged on the locking matching part. The assembly efficiency of the indoor unit of the air conditioner is provided.

Description

Indoor unit of air conditioner

Technical Field

The utility model relates to an air conditioner, in particular to an air conditioner indoor unit.

Background

Air conditioners are household appliances commonly used in daily life of people, and are divided into wall-mounted air conditioners and cabinet air conditioners. Among them, an air conditioner generally includes an indoor unit installed at an indoor side and an outdoor unit installed at an outdoor side. The indoor units in the prior art are installed in different installation modes and are divided into vertical indoor units, wall-mounted indoor units and air-conditioning indoor units. The indoor unit of the air conditioner is widely popularized and used because the indoor effective space occupied by the indoor unit of the air conditioner is small. An indoor unit of an air conditioner (generally referred to as an air conditioner) generally includes a casing, and a fan, a heat exchanger, a water pan, a drain pump, and the like disposed in the casing. Chinese patent publication No. CN 112747373A discloses an air duct machine and an air duct assembly method, in which components such as a heat exchange system, a fan system, an electric control box, etc. are required to be installed in a casing, wherein the electric control box is installed with a circuit board and is shielded and closed by a box cover. However, in the actual assembly process, the circuit board is usually fastened in the electronic control box by using a screw, and according to different functions of the circuit board, a plurality of circuit boards are generally required to be assembled in the electronic control box again, and the space in the electronic control box is smaller, so that the efficiency of screwing the screw is lower due to space limitation during on-site assembly, and the assembly efficiency is lower. In view of this, how to design an air conditioning technology that improves the assembly efficiency is a technical problem to be solved by the present utility model.

Disclosure of utility model

Aiming at the problems pointed out in the background art, the utility model provides an air conditioner indoor unit, which realizes the assembly efficiency of the air conditioner indoor unit.

In some embodiments of the present application, there is provided an air conditioner indoor unit including: the shell is provided with an air inlet and an air outlet; a heat exchanger configured to exchange heat with an air flow flowing therethrough to form a heat exchanged air flow; the fan assembly comprises a motor, a fan and a mounting part, the mounting part is provided with the through hole, the mounting part is provided with a fixed mounting area and a volute cavity, the motor is arranged in the fixed mounting area, the fan is arranged in the volute cavity, and the volute cavity is communicated with the through hole; an electrical box; the installation part is arranged in the shell and divides the interior of the shell into an air inlet cavity and an air outlet cavity, the air inlet is communicated with the air inlet cavity, the air outlet is communicated with the air outlet cavity, the heat exchanger is arranged in the air outlet cavity, and the electrical box is arranged in the air inlet cavity or the air outlet cavity; the electric appliance box is provided with a mounting substrate and at least one circuit board, wherein the mounting substrate is provided with a preassembling part and a locking part, and the circuit board is arranged on the mounting substrate; the electric appliance box is provided with a preassembly part and a locking matching part, the preassembly part is arranged on the preassembly part, and the locking matching part is arranged on the locking matching part.

Compared with the prior art, the utility model has the advantages and positive effects that: through adopting independent mounting substrate to unify the fixed a plurality of circuit boards, like this, in the equipment process, then can unify a plurality of circuit boards earlier on same mounting substrate in the outside of electrical apparatus box, then together assemble electrical apparatus box with a plurality of circuit boards through mounting substrate in, operating personnel can preassemble a plurality of circuit boards earlier on mounting substrate outside the electrical apparatus box, only need mounting substrate to pack into electrical apparatus box in order to realize the assembly, need not to assemble each circuit board in the electrical apparatus box alone, can reduce the equipment degree of difficulty in order to improve packaging efficiency.

Drawings

FIG. 1 is a schematic diagram of an indoor unit of an air conditioner according to an embodiment of the present utility model;

FIG. 2 is a second schematic diagram of an embodiment of an indoor unit of an air conditioner according to the present utility model;

FIG. 3 is one of the structural schematic diagrams of the fan assembly of FIG. 1;

FIG. 4 is a second schematic diagram of the fan assembly of FIG. 1;

FIG. 5 is an exploded view of the blower assembly of FIG. 3;

FIG. 6 is a schematic view of the first mounting member of FIG. 3;

FIG. 7 is one of the schematic structural views of the second mounting member of FIG. 3;

FIG. 8 is a second schematic view of the second mounting member of FIG. 3;

FIG. 9 is a schematic diagram of another embodiment of an indoor unit of an air conditioner according to the present utility model;

FIG. 10 is a second schematic diagram of an indoor unit of an air conditioner according to another embodiment of the present utility model;

FIG. 11 is one of the structural schematic diagrams of the fan assembly of FIG. 9;

FIG. 12 is a second schematic view of the blower assembly of FIG. 9;

FIG. 13 is an exploded view of the blower assembly of FIG. 11;

FIG. 14 is a schematic view of the first mounting member of FIG. 11;

FIG. 15 is a schematic view of the second mounting member of FIG. 11;

FIG. 16 is a schematic view of the structure of the fixing bracket in FIG. 11;

FIG. 17 is a schematic view of the shock absorbing member of FIG. 11;

FIG. 18 is a schematic view of an indoor unit of an air conditioner according to another embodiment of the present utility model;

FIG. 19 is a second schematic view of an indoor unit of an air conditioner according to another embodiment of the present utility model;

FIG. 20 is one of the structural schematic diagrams of the fan assembly of FIG. 18;

FIG. 21 is a second schematic view of the blower assembly of FIG. 9;

FIG. 22 is an exploded view of the blower assembly of FIG. 20;

FIG. 23 is an assembled view of the second mounting member and electrical box of FIG. 1;

FIG. 24 is an enlarged partial schematic view of area A of FIG. 22;

FIG. 25 is an assembled view of the second mounting member and electrical box of FIG. 10;

FIG. 26 is a partially enlarged schematic illustration of region B of FIG. 25;

fig. 27 is an assembled view of the fire-blocking component and electrical box of fig. 25;

fig. 28 is an exploded view of the electrical box of fig. 27.

Detailed Description

As shown in fig. 1 to 8, in one embodiment of the present application, there is provided an indoor unit of an air conditioner, including: a shell 1, a heat exchanger 2, a fan assembly 3 and an electrical box 4. The housing 1 is provided with an air inlet 11 and an air outlet 12, and the heat exchanger 2 is configured to exchange heat with an air flow flowing therethrough to form a heat exchange air flow. The fan assembly 3 includes a motor 31, a fan 32, a first mount 33 and a second mount 34. The first mounting member 33 is provided with a plurality of first volute sections 331 and at least one first mounting portion 332, and the first mounting portion 332 is located between two adjacent first volute sections 331. The second mounting member 34 is provided with a plurality of through holes 341, and the first surface of the second mounting member 34 is provided with a plurality of second volute sections 342 and at least one second mounting section 344. The first mounting member 33 is detachably disposed on the second mounting member 34, a fixed mounting area is formed between the first mounting portion 332 and the second mounting portion 344, and the motor 31 is disposed in the fixed mounting area; a scroll chamber is formed between the first scroll portion 331 and the corresponding second scroll portion 342, the scroll chamber is communicated with the corresponding through hole 341, the fan 32 is disposed in the corresponding scroll chamber, and the motor 31 is configured to drive the fan 32 to rotate in the scroll chamber. The electrical box 4 is provided with a circuit board 41, and a plurality of cables (not shown) are connected to the circuit board 41. The second mounting piece 34 is disposed in the housing 1 and divides the interior of the housing 1 into an air inlet cavity and an air outlet cavity, the air inlet 11 is communicated with the air inlet cavity, the air outlet 12 is communicated with the air outlet cavity, and the heat exchanger 2 is disposed in the air outlet cavity. Because the air inlet cavity and the air outlet cavity are respectively provided with electrical components, for example: electrical components such as fans are arranged in the air inlet cavity, electrical components such as sensors are arranged in the air outlet cavity, and the electrical components are connected with cables corresponding to the circuit board 41. And the cables connected to the electrical components distributed on the different side of the second mounting member from the electrical box need to pass through the second mounting member.

In actual use, the second mount follows the fire in order to reduce the cable from catching fire due to a fault. A fireproof part 40 may be arranged on the second mounting, a wiring part 401 is arranged on the fireproof part 40, the electrical box 4 is arranged on the fireproof part 40, and part of the cable is arranged in the air inlet cavity and the air outlet cavity via the wiring part 401. Specifically, for the cable to be passed through the second mount, the cable is led out from the electrical box 4 and then passed through the second mount via the wiring portion 401. The cable will be mounted by the fire protection component 40 support to reduce the effect of the cable on the second mount. In use, when the cable catches fire due to a fault, the cable is supported by the fireproof part 40 so that the cable does not have a great influence on the second mount.

The electric appliance box 4 is arranged on the second mounting part through the fireproof part 40, the cable which penetrates through the second mounting part and is led out by the electric appliance box 4 is arranged through the wiring part 401 formed on the fireproof part 40, in the actual use process, when the cable catches fire due to faults, the cable is supported and arranged by the wiring part 401 formed by the fireproof part 40, so that the second mounting part is ignited by the cable with reduced occurrence of fire, and meanwhile, when the electric appliance box 4 catches fire, the electric appliance box 4 is arranged on the second mounting part through the fireproof part 40, the fireproof part 40 is utilized to play a fireproof role, and the fireproof performance of the indoor unit of the air conditioner is provided to improve the use safety and reliability.

In one embodiment, the fireproof component 40 is provided with a first notch structure, and the first notch structure forms the wiring portion 401; the first notch structure is configured for loading a cable into the first notch structure from a notch location of the first notch structure. Specifically, in order to facilitate the operator to perform internal wiring by penetrating the wire harness through the second mounting member on site during the assembly process, the wiring portion 401 configured on the fireproof component 40 is designed as a notch, that is, a first notch structure is disposed at the edge of the fireproof component 40 to form the wiring portion 401. When the on-site operator assembles, to the cable that needs run through the second installed part, can pull into first breach structure between the cable to accomplish the wiring operation, and need not to adopt the perforation mode, can effectual improvement packaging efficiency.

In another embodiment, in order to meet the wiring requirement of the cable penetrating through the second mounting piece, the second mounting piece is matched with the first notch structure for quick assembly, and a second notch structure 3401 is further arranged on the second mounting piece, and the second notch structure 3401 and the first notch are arranged side by side; the cable in the first notch structure also penetrates through the second notch structure 3401.

Specifically, the second notch structure 3401 provided on the second mounting member is arranged side by side with the first notch structure provided on the fireproof component 40, so as to ensure that after the cable is pulled into the first notch structure, the cable is simultaneously located in the second notch structure 3401, and further the cable penetrates through the second mounting member.

In some embodiment, after the cable penetrates through the second mounting member to complete assembly, in order to avoid the cable from being separated from the first notch structure, the cable may be limited and blocked. The specific mode is as follows: as shown in fig. 23-24, an anti-disengaging portion 3402 is further disposed in the second notch structure 3401, and the anti-disengaging portion 3402 is configured to limit the cable in the second notch structure 3401 from disengaging from the first notch structure.

Specifically, an anti-disengaging portion 3402 is disposed in the second notch structure 3401 to prevent the cable from disengaging from the second notch structure 3401. The appearance entity of the anti-falling portion 3402 may be an elastic limiting piece or a barb or other structure provided in the second notch structure 3401, the anti-falling portion 3402 can guide the cable to be loaded into the second notch structure 3401 when the cable is assembled, and after the cable is assembled in place, the anti-falling portion 3402 is used for limiting the cable to be separated from the second notch structure 3401 so as to simultaneously limit the cable to be separated from the first notch structure.

Or as shown in fig. 25-26, the first notch structure is in a gourd-shaped opening structure. Specifically, the opening of the first notch structure is a gourd-shaped opening structure, and the opening of the first notch structure is small when the cable is installed so as to limit the cable installed in the first notch structure to be separated from the first notch structure.

In some embodiments, as shown in fig. 25-26, to more effectively reduce cable ignition of the second mount, the second notch structure 3401 has a notch area greater than the notch area of the first notch structure; the cable passing through the second notch structure 3401 is not in contact with the inner surface of the second notch structure 3401.

Specifically, the first notch structure is used for supporting and installing the cable, and the second notch structure 3401 is used for avoiding opening the cable, so that the cable can be arranged in the second notch structure 3401 in a suspended manner, and further the cable is ensured not to directly contact with the second installation piece in the use process, and the second installation piece is not ignited even after the cable is ignited.

In some embodiments, in order to perform a more efficient fire protection treatment on the second mounting element, in particular, to protect the second mounting element by the fire protection element 40 in the event of a fire inside the electrical box 4, a first flange 402 may be provided on top of the fire protection element 40, said first flange 402 covering the top of said second mounting element.

Specifically, the top of the fireproof component 40 is provided with a first flange 402, and the first flange 402 can protect the top area of the second installation piece, so that when the interior of the electrical box 4 catches fire, rising fire is blocked by the first flange 402 to avoid the fire from affecting the second installation piece.

In order to prevent the side of the second mounting element from being damaged, the side of the fireproof element 40 is provided with a second flange 403, and the second flange 403 covers the end of the second mounting element.

Specifically, the side portion of the fireproof part 40 is provided with the second flange 403, and the second flange 403 can protect the side portion area of the second installation member, so that when the interior of the electrical box 4 catches fire, the influence of flame on the side portion of the second installation member caused by the first notch structure is reduced.

In another embodiment of the present application, for the circuit board 41 disposed in the electrical box 4, in actual design, a plurality of circuit boards 41 are configured according to specific functions of the indoor unit of the air conditioner, so as to facilitate the installation of the circuit board 41 into the electrical box 4, and how to improve the assembly mode of the electrical box 4 and the circuit board 41.

As shown in fig. 27 and 28, the electrical box 4 further includes a mounting substrate 44, the mounting substrate 44 is provided with a pre-mounting portion 441 and a locking portion 442, and the circuit board 41 is disposed on the mounting substrate 44; the electrical box 4 generally includes a box body 42 and a box cover 43, wherein a pre-assembling portion 421 and a locking portion 422 are disposed on the box body 42, the pre-assembling portion 441 is disposed on the pre-assembling portion 421, and the locking portion 442 is disposed on the locking portion 422.

Specifically, the mounting substrate 44 is used for collectively mounting the circuit boards 41 to be assembled, the circuit boards 41 are pre-assembled onto the mounting substrate 44 outside the electrical box 4, and then the mounting substrate 44 is individually loaded into the electrical box 4. Thus, in the actual assembly process, since the assembly of the circuit board 41 and the mounting substrate 44 is not limited by the internal space of the electrical box 4, an operator can conveniently and rapidly assemble the circuit board 41 into the mounting substrate 44, and only the mounting substrate 44 is required to be assembled in the electrical box 4 alone, so that the plurality of circuit boards 41 can be assembled into the electrical box 4, thereby reducing the assembly difficulty and improving the assembly efficiency.

Among them, there are various structures for the representation entity of the pre-assembly portion 441 and the pre-assembly combining portion 421. For example: the pre-assembly portion 441 is a plug tongue disposed on the mounting substrate 44, and the pre-assembly portion 421 is a positioning jack disposed on the electrical box 4, in which the plug tongue is inserted. Similarly, the locking portion 442 is a claw provided on the mounting substrate 44, and the locking engagement portion 422 is a slot provided on the electrical box 4, in which the claw is engaged.

In some embodiments, the printed circuit board 41 is mounted to the mounting substrate 44 for the convenience of the operator to reduce the amount of screws used. The mounting substrate 44 is provided with a plurality of mounting grooves 443, the edges of the mounting grooves 443 are provided with clamping positioning members 444, the circuit board 41 is arranged in the corresponding mounting groove 443, and the clamping positioning members 444 are clamped on the circuit board 41 and configured to fix the circuit board 41 in the mounting grooves 443.

Specifically, the mounting substrate 44 is provided with a mounting slot 443 for positioning and mounting the circuit board 41, and when the mounting substrate is assembled, an operator puts the circuit board 41 into the mounting slot 443 and positions and fixes the circuit board 41 mounted in the mounting slot 443 by clamping the positioning member 444, so that the fixing of the circuit board 41 is realized, the screw usage amount is reduced, and even the fixing is not required.

Wherein, the expression entity of the snap-in positioning member 444 may be an elastic claw, which includes an elastic portion and a positioning protrusion, the positioning protrusion is disposed at a free end of the elastic portion, the elastic portion is disposed on the mounting substrate 44, and the positioning protrusion is pressed against the circuit board 41.

In another embodiment, since the circuit board 41 is assembled in the electrical box 4, the cables on the circuit board 41 need to be led out of the electrical box 4 to connect with the relevant components. The electrical box 4 is provided with a first threading part 423 and a second threading part 424, the first threading part 423 is configured to enable the cable to be led out of the electrical box 4 and arranged inside the shell, and the second threading part 424 is configured to enable the cable to be led out of the electrical box 4 and extend out of the shell;

The mounting substrate 44 is provided with a protection portion 445, and the protection portion 445 forms a closed or semi-closed routing channel, and the routing channel is arranged opposite to the first threading portion 423.

Specifically, the cables of the circuit board 41 in the electrical box 4 are connected to the relevant electrical devices through the inside of the casing, and some cables need to extend to the outside of the casing to be electrically connected. The first threading part 423 is required to meet the installation requirement of the internal cable, and the second threading part 424 is required to meet the installation requirement of the cable extending out of the housing. For the second threading portion 424, a circular hole is generally adopted and a sealing ring is configured to meet the requirement of sealing and threading the cable. The first threading part 423 is provided with a wire, so that the wire can be conveniently threaded in the housing by a notch, the protection part 445 arranged on the mounting substrate 44 can guide the wire to be output from the electrical box 4 by using the self-formed wire path in the electrical box 4, and meanwhile, the protection part 445 is prolonged from the first threading part 423 to the interior of the electrical box 4 in the electrical box 4, so that a serviceman can be prevented from mistakenly extending a finger into the electrical box 4 through the first threading part 423 to generate an electric shock, thereby improving the use safety.

In another embodiment of the present application, the second housing portion 342 and the second mounting portion 344 are integrally formed by injection molding or the like of the second mounting member 34. In order to improve the overall structural strength of the second mounting member 34, at least one supporting portion 343 is disposed on the second mounting member 34, the supporting portion 343 protrudes from the first surface, the supporting portion 343 has a hollow structure, and the supporting portion 343 is provided with a second mounting portion 344; a second surface of the second mounting member 34 is provided with first reinforcing ribs 345, the first and second surfaces being arranged opposite to each other; the first surface is located in the air inlet cavity, and the second surface is located in the air outlet cavity.

Specifically, the heat exchanger 2 and the fan assembly 3 are installed inside the casing 1, during the use process, the fan assembly 3 drives the airflow to flow inside the casing 1, so that external air enters the air inlet cavity in the casing 1 from the air inlet 11, and enters the air outlet cavity from the through hole 341 to exchange heat with the heat exchanger 2 through the fan 32, and finally, the air after heat exchange is output to the outside from the air outlet 12.

Among them, it is necessary for the fan assembly 3 to meet the requirements for mounting the motor 31 and the fan 32. For mounting the fan 32, the first casing portion 331 provided on the first mounting member 33 and the second casing portion 342 provided on the second mounting member 34 cooperate to form a casing, and the fan 32 is located between the first casing portion 331 and the second casing portion 342, and the fan 32 rotates in the casing so that air outside the casing is sucked into the casing and output from the through hole 341. For mounting the motor 31, the motor 31 is required to meet the requirements for efficient mounting and supporting of the motor 31 during transportation and transportation due to the heavy overall weight of the motor 31. For this reason, the second mounting member 34 is formed with the supporting portion 343 at the portion thereof where the fixed motor 31 is mounted, and the supporting portion 343 protrudes from the first surface of the second mounting member 34, so that the overall structural strength of the portion of the second mounting member 34 having the supporting portion 343 is effectively increased.

And the supporting portion 343 is provided with a second mounting portion 344 extending outwardly therefrom, the second mounting portion 344 being adapted to mount the stationary motor 31. Specifically, in the process of assembling the motor 31 with the first mount 33 and the second mount 34, the motor 31 is placed on the second mount 344 on the second mount 34, and then the first mount 33 is assembled to the second mount 34. At this time, the motor 31 is fixedly mounted between the first mounting portion 332 and the second mounting portion 344.

In actual use, the motor 31 is fixedly suspended on the second mounting portion 344 by the first mounting portion 332, the second mounting portion 344 needs to bear the weight of the motor 31 to the fan 32, and the supporting portion 343 provides sufficient strength support to the second mounting portion 344 to ensure that the structure meets the use requirement. Meanwhile, for the second mounting member 34, the fan assembly 3 is fixedly mounted in the casing 1 through the second mounting member 34, and the second mounting member 34 needs to meet the mounting requirements of the bearing motor 31, the fan 32 and the first mounting member 33, so that the overall structural strength requirement of the second mounting member 34 is high.

For this, first reinforcing ribs 345 are formed on the second surface of the second mounting member 34. The first reinforcing ribs 345 are distributed on the other sides of the second volute section 342, the supporting section 343 and the second mounting section 344, so that on one hand, the overall structural strength of the second mounting member 34 can be improved by the first reinforcing ribs 345 to meet the requirement of mounting to the casing 1, and on the other hand, the first reinforcing ribs 345 are arranged on the second surface of the second mounting member 34, so that the structure of the first surface of the second mounting member 34 can be effectively simplified.

As for the outer surface of the supporting portion 343, since no reinforcing ribs are formed on the outer surface thereof, the structure of the first surface of the second mounting member 34 is simplified as much as possible on the premise of meeting the requirement of the function of the mounting structure, so as to reduce the processing difficulty of the second mounting member 34.

The functional structures such as the worm case part and the supporting part 343 are arranged on the first surface of the second mounting piece 34 so as to meet the mounting requirements of the fan 32 and the motor 31, and the supporting part 343 protruding from the first surface can effectively improve the bearing and supporting capacity of the motor 31 so as to meet the requirements of the second mounting part 344 on structural supporting strength during the mounting and running of the motor 31, and the reinforcing of the integral structural strength of the second mounting piece 34 forms the first reinforcing rib 345 on the second surface of the second mounting piece 34, and the integral structural strength of the second mounting piece 34 is reinforced by the first reinforcing rib 345, so that the complexity of related structures on the first surface of the second mounting piece 34 can be effectively simplified, and the processing difficulty of the second mounting piece 34 is reduced on the premise of meeting the structural strength requirement of the second mounting piece 34.

In one embodiment of the present application, the hollow structure of the supporting part 343 is internally provided with a second reinforcing rib 3431; the support portion 343 is further formed with an opening 3432, and the second reinforcing ribs 3431 extend from inside to outside in the hollow structure of the support portion 343 toward the opening 3432.

Specifically, for the second mounting member 34, it is generally manufactured by injection molding, so as to facilitate demolding to reduce the processing difficulty and further increase the structural strength of the supporting portion 343, the hollow structure formed by the supporting portion 343 may be provided with the second reinforcing ribs 3431, so as to improve the structural strength of the supporting portion 343 by using the second reinforcing ribs 3431.

Meanwhile, in the demolding process, the opening 3432 formed by the supporting portion 343 can be utilized to perform smooth demolding, and the second reinforcing ribs 3431 extend from inside to outside towards the opening 3432, so that the second mounting piece 34 can be conveniently and smoothly demolded, and further the processing difficulty is reduced on the premise of meeting the structural strength.

In another embodiment of the present application, the supporting portion 343 is disposed to extend vertically along the width direction of the second mounting member 34, and the opening 3432 is disposed at an end of the supporting portion 343 facing away from the first mounting member 33.

Specifically, the support portion 343 is disposed in the extending direction of the second mounting member 34 in the width direction, so that the support portion 343 is disposed vertically in the use state, so as to effectively improve the structural strength of the second mounting member 34 in the width direction.

Correspondingly, in order to reduce the processing difficulty and facilitate demolding, the opening 3432 is disposed at the end of the supporting portion 343 facing away from the first mounting member 33, and the second reinforcing ribs 3431 are also in an upright state to facilitate demolding of the mold.

In another embodiment of the present application, for the second volute section 342, in use, the second volute section 342 is disposed on top of the first volute section 331, the second volute section 342 extends outwardly from the first surface of the second mounting member 34 and forms an arc surface, and in order to increase the structural strength of the second volute section 342, a surface of the second volute section 342 facing away from the first volute section 331 is provided with a third stiffener 3421, the third stiffener 3421 extends along the arc direction of the second volute section 342, and the third stiffener 3421 is disposed vertically.

Specifically, the third reinforcing ribs 3421 are formed on the outer surface of the second casing part 342, so that the structural strength of the second casing part 342 can be improved. Also, since the third stiffener 3421 is disposed on the outer surface of the second volute section 342, and in the use state, the third stiffener 3421 is also disposed in the standing direction. Therefore, when the die is demolded, the die is convenient to demold, and the processing difficulty can be effectively reduced.

In an embodiment, since the second mounting member 34 is integrally formed with the second mounting portion 344 and the second volute portion 342, in order to improve the connection reliability between the second mounting portion 344 and the second volute portion 342, a connection portion 346 may be further disposed between the second mounting portion 344 and the adjacent two second volute portions 342, and a fourth reinforcing rib 3461 may be disposed on a surface of the connection portion 346 facing away from the first volute portion 331, where the fourth reinforcing rib 3461 is disposed vertically.

Specifically, the second mounting portion 344 and the second volute portion 342 are each disposed to extend away from the first surface of the second mounting member 34, one end of the second mounting portion 344 and one end of the second volute portion 342 are each connected to the second mounting member 34, and the other end of the second mounting portion 344 and the other end of the second volute portion 342 are connected by a connection portion 346 for structural reinforcement.

Also, as for the connection portion 346, fourth reinforcing ribs 3461 are provided on the surface thereof facing away from the first mounting member 33 to enhance its structural strength. Also, since the fourth reinforcing bead 3461 is also arranged in the standing direction in the use state. Therefore, when the die is demolded, the die is convenient to demold, and the processing difficulty can be effectively reduced.

In yet another embodiment, a surface of the second mounting portion 344 facing away from the first mounting member 33 is provided with a fifth reinforcing rib 3441, the fifth reinforcing rib 3441 being arranged upright. Specifically, since the second mounting portion 344 needs to carry the motor 31, the second mounting portion 344 may have a higher requirement for its structural strength, and in order to enhance the structural strength of the second mounting portion 344, the second mounting portion 344 may be provided with fifth reinforcing ribs 3441.

Also, in order to facilitate demolding to reduce processing difficulty, fifth reinforcing ribs 3441 are provided on a surface of the second mounting portion 344 facing away from the first mounting member 33; also, in the use state, the fifth reinforcing bead 3441 is also arranged in the standing direction. Therefore, when the die is demolded, the die is convenient to demold, and the processing difficulty can be effectively reduced.

In yet another embodiment, the edge of the second mounting member 34 remote from the first volute section 331 is provided with a flange structure 347, and the surface of the flange structure 347 facing away from the first volute section 331 is provided with a sixth reinforcing rib 3471, and the sixth reinforcing rib 3471 is arranged vertically.

Specifically, the second mounting member 34 is connected between the bottom plate and the top plate of the housing 1, wherein when the second mounting member 34 is connected with the top plate, the connection area between the second mounting member and the housing 1 is increased by the flanging structure 347. The flange structure 347 may be fastened to the top plate of the housing 1 by a screw.

And sixth reinforcing ribs 3471 are provided on the outer surface thereof in order to further enhance the structural strength of the burring structure 347. Similarly, in the use state, the sixth reinforcing bead 3471 is also arranged in the standing direction. Therefore, when the die is demolded, the die is convenient to demold, and the processing difficulty can be effectively reduced.

As is clear from the above, the second reinforcing bead 3431, the third reinforcing bead 3421, the fourth reinforcing bead 3461, the fifth reinforcing bead 3441, and the sixth reinforcing bead 3471 are disposed on the second attachment 34, and in the hanging and mounting use state of the air conditioning indoor unit, the second reinforcing bead 3431, the third reinforcing bead 3421, the fourth reinforcing bead 3461, the fifth reinforcing bead 3441, and the sixth reinforcing bead 3471 are all disposed in an upright state so as to satisfy the requirement of the structural strength reinforcing design on the functional structure portion extending outward from the second attachment 34.

And, the second reinforcing rib 3431, the third reinforcing rib 3421, the fourth reinforcing rib 3461, the fifth reinforcing rib 3441 and the sixth reinforcing rib 3471 are vertically arranged on the second mounting member 34, and when the whole demolding is performed, the requirement of smooth demolding can be satisfied, and the structure of the mold is simplified so as to reduce the processing difficulty.

In another embodiment of the present application, for convenience in assembling the first mounting member 33 and the second mounting member 34, the first mounting member 33 is provided with a clamping portion 333 and a positioning portion 334;

The second mounting member 34 is provided with a clamping and matching portion 348 and a positioning and matching portion 349, the clamping and matching portion 333 is clamped with the clamping and matching portion 348, and the positioning portion 334 is connected with the positioning and matching portion 349.

Specifically, in order to reduce the amount of screws used to simplify the assembly process of the first and second mounting members 33 and 34, the first and second mounting members 33 and 34 may be preassembled by snap-fitting.

In the actual use process, the engaging portion 333 and the engaging portion 348 may have various structural engaging forms, such as engaging a claw with a slot, or adopting a buckle structure, which is not limited and described herein.

In another embodiment, the motor 31 may be mounted and fixed by the first mounting portion 332 and the second mounting portion 344 in the following manner.

The first mounting portion 332 includes two first frame bodies 3321 formed on the first mounting member 33, the two first frame bodies 3321 are arranged side by side, the first frame bodies 3321 have an arc structure, a structure reinforcing portion 3322 is further disposed between the two first frame bodies 3321, and the structure reinforcing portion 3322 extends along the length direction of the rotating shaft of the motor 31;

the second mounting portion 344 includes two second frames 3442 formed on the second mounting member 34, the two second frames 3442 being arranged side by side, and mounting grooves (not shown) being formed on a surface of the second frame 3442 opposite to the first frame 3321;

The first frame 3321 and the second frame 3442 are fixedly connected together by screws, and the end of the motor 31 is fixed between the corresponding first frame 3321 and the corresponding second frame 3442.

Specifically, the motor 31 is mounted between the first mounting portion 332 and the second mounting portion 344, and the first frame 3321 formed by the first mounting portion 332 and the second frame 3442 formed by the second mounting portion 344 clamp the corresponding end portions of the motor 31, so that the motor 31 is fastened to the first mounting portion 332 and the second mounting portion 344.

Because the motor 31 has a heavy weight, in order to improve the connection reliability between the first frame 3321 and the second frame 3442, the first frame 3321 and the second frame 3442 may be further fastened by screws after the first and second mounting members 33 and 34 are fastened together, so as to improve the connection reliability of the mounting portion of the motor 31.

In still another embodiment of the present application, as shown in fig. 9 to 17, an air conditioner indoor unit includes: a shell 1, wherein the shell 1 is provided with an air inlet 11 and an air outlet 12; a heat exchanger 2, the heat exchanger 2 being configured to exchange heat to an air flow flowing therethrough to form a heat exchanged air flow; a fan assembly 3, wherein the fan assembly 3 comprises a motor 31, a fan 32, a first mounting piece 33, a second mounting piece 34 and a fixed bracket 35, and a plurality of first volute sections 331 are arranged on the first mounting piece 33; the second mounting member 34 is provided with a plurality of through holes 341, a first surface of the second mounting member 34 is provided with a plurality of second volute sections 342 and at least one supporting portion 343, the supporting portion 343 protrudes from the first surface, the inside of the supporting portion 343 is of a hollow structure, and the supporting portion 343 is provided with a second mounting portion 344; a second surface of the second mounting member 34 is provided with first reinforcing ribs 345, the first and second surfaces being arranged opposite to each other; the first mounting piece 33 is detachably arranged on the second mounting piece 34, the fixed bracket 35 is detachably arranged on the second mounting piece 34 and forms a fixed mounting area with the second mounting part 344, the motor 31 is arranged in the fixed mounting area, and the fixed bracket 35 is positioned between two adjacent first volute parts 331; a scroll chamber is formed between the first scroll portion 331 and the corresponding second scroll portion 342, the scroll chamber is communicated with the corresponding through hole 341, the fan 32 is disposed in the corresponding scroll chamber, and the motor 31 is configured to drive the fan 32 to rotate in the scroll chamber; the second mounting piece 34 is disposed in the housing 1 and divides the interior of the housing 1 into an air inlet cavity and an air outlet cavity, the air inlet 11 is communicated with the air inlet cavity, the air outlet 12 is communicated with the air outlet cavity, the first surface is disposed in the air inlet cavity, the second surface is disposed in the air outlet cavity, and the heat exchanger 2 is disposed in the air outlet cavity.

Specifically, the first volute section 331 formed on the first mounting member 33 is matched with the second volute section 342 formed on the second mounting member 34 for mounting the fan 32, and for mounting and fixing the motor 31, the mounting and fixing of the motor 31 is completed by matching the independently configured fixing bracket 35 with the second mounting section 344 of the second mounting member 34. And for the second mounting piece 34, the supporting portion 343 is arranged to protrude from the first surface of the second mounting piece 34, the supporting portion 343 is provided with the second mounting portion 344 extending outwards, and the second mounting portion 344 is used for mounting and fixing the motor 31, so that the overall structural strength of the portion of the second mounting piece 34 with the supporting portion 343 is effectively increased. The first reinforcing ribs 345 are formed on the second surface of the second mounting member 34 to enhance the overall structural strength of the second mounting member 34 by the first reinforcing ribs 345 to meet the requirement of mounting to the housing 1, and the first reinforcing ribs 345 are arranged on the second surface of the second mounting member 34 to simplify the structural design on the first surface.

In another embodiment, the fixing bracket 35 has a frame structure, the fixing bracket 35 has a first fixing portion 351, a second fixing portion 352 and two clip portions 353, and the clip portions 353 are connected between the first fixing portion 351 and the second fixing portion 352; the second mounting portion 344 includes two second frames 3442 formed on the second mounting member 34, the two second frames 3442 are arranged side by side, and a clip groove (not labeled) is formed on a surface of the second frame 3442 opposite to the first frame 3321; wherein, the first fixing portion 351 and the second fixing portion 352 are fixedly connected to the second mounting member 34, and the end portion of the motor 31 is fixed between the corresponding clip portion 353 and the second frame 3442.

Specifically, during the assembly of the motor 31, the motor 31 is mounted between the fixing bracket 35 and the second mounting portion 344, and the clamp portion 353 formed by the fixing bracket 35 and the second frame 3442 formed by the second mounting portion 344 clamp the corresponding end portion of the motor 31, so that the motor 31 is fastened to the fixing bracket 35 and the second mounting portion 344. Since the motor 31 has a heavy weight, in order to improve connection reliability between the clip portion 353 and the second frame body 3442, the fixing bracket 35 may be fixed to the second mounting member 34 by a screw to improve connection reliability of the mounting portion of the motor 31.

In another embodiment, in order to save the amount of the screws, the first fixing portion 351 is provided with an outwardly extending plugging portion 354, and the supporting portion 343 is provided with a plugging mating portion 3433;

The plugging portion 354 is plugged with the plugging mating portion 3433, and the second fixing portion 352 is fixed to the second mounting member 34 by a screw.

Specifically, during the assembly of the motor 31, the motor 31 is placed between the two second frames 3442 of the second mounting member 34, then the insertion portion 354 of the fixing bracket 35 is inserted into the insertion mating portion 3433 formed by the supporting portion 343, then the fixing bracket 35 is turned over so that the second fixing portion 352 abuts against the connecting portion 346, and then the second fixing portion 352 and the connecting portion 346 are fastened together by screws.

In another embodiment of the present application, in the case of fixing the motor 31 by using the fixing bracket 35, in order to increase the overall structural strength of the second mounting member 34, the second reinforcing ribs 3431, the third reinforcing ribs 3421, the fourth reinforcing ribs 3461, the fifth reinforcing ribs 3441 and the sixth reinforcing ribs 3471 are also disposed on the second mounting member 34 in the corresponding structures. In the hanging installation and use state of the indoor unit of the air conditioner, the second reinforcing rib 3431, the third reinforcing rib 3421, the fourth reinforcing rib 3461, the fifth reinforcing rib 3441 and the sixth reinforcing rib 3471 are all in a vertical arrangement state so as to meet the requirement of structural strength reinforcing design on the functional structure part extending outwards of the second mounting piece 34.

In still another embodiment of the present application, as shown in fig. 18 to 22, an air conditioner indoor unit includes: a shell 1, wherein the shell 1 is provided with an air inlet 11 and an air outlet 12; a heat exchanger 2, the heat exchanger 2 being configured to exchange heat to an air flow flowing therethrough to form a heat exchanged air flow; the fan assembly 3, the fan assembly 3 includes a motor 31, a fan 32, a plurality of first mounting members 33, a second mounting member 34 and a fixing bracket 35, the first mounting member 33 is provided with a first volute section 331; the second mounting member 34 is provided with a plurality of through holes 341, a first surface of the second mounting member 34 is provided with a plurality of second volute sections 342 and at least one supporting portion 343, the supporting portion 343 protrudes from the first surface, the inside of the supporting portion 343 is of a hollow structure, and the supporting portion 343 is provided with a second mounting portion 344; a second surface of the second mounting member 34 is provided with first reinforcing ribs 345, the first and second surfaces being arranged opposite to each other; the first mounting member 33 is detachably arranged on the second mounting member 34, the fixed bracket 35 is detachably arranged on the second mounting member 34 and forms a fixed mounting area with the second mounting part 344, the motor 31 is arranged in the fixed mounting area, and the fixed bracket 35 is positioned between two adjacent first mounting members 33; a scroll chamber is formed between the first scroll portion 331 and the corresponding second scroll portion 342, the scroll chamber is communicated with the corresponding through hole 341, the fan 32 is disposed in the corresponding scroll chamber, and the motor 31 is configured to drive the fan 32 to rotate in the scroll chamber; the second mounting piece 34 is disposed in the housing 1 and divides the interior of the housing 1 into an air inlet cavity and an air outlet cavity, the air inlet 11 is communicated with the air inlet cavity, the air outlet 12 is communicated with the air outlet cavity, the first surface is disposed in the air inlet cavity, the second surface is disposed in the air outlet cavity, and the heat exchanger 2 is disposed in the air outlet cavity.

Specifically, a plurality of integrally formed second casing portions 342 are formed on the second mounting member 34, and in order to match the second casing portions 342, a plurality of first mounting members 33 are disposed, and at least one first casing portion 331 is disposed on each of the first mounting members 33. In assembly, the motor 31 and the fan 32 are placed on the second mounting member 34, and then each of the first mounting members 33 is assembled to the second mounting member 34. The first volute section 331 provided on the first mounting member 33 will cooperate with the second volute section 342 at a corresponding location to form a volute cavity to meet the mounting requirements of the fan 32. Further, the motor 31 is mounted and fixed, and the mounting and fixing of the motor 31 is completed by the fixing bracket 35 which is independently arranged and engaged with the second mounting portion 344 of the second mounting member 34. The fixed bracket 35 is then arranged between the two first mounts 33; alternatively, in the case where a plurality of first casing portions 331 are provided on the same first mounting member 33, the fixing bracket 35 may be disposed between two adjacent first casing portions 331 on the first mounting member 33. And for the second mounting piece 34, the supporting portion 343 is arranged to protrude from the first surface of the second mounting piece 34, the supporting portion 343 is provided with the second mounting portion 344 extending outwards, and the second mounting portion 344 is used for mounting and fixing the motor 31, so that the overall structural strength of the portion of the second mounting piece 34 with the supporting portion 343 is effectively increased.

The fixing bracket 35 has a frame structure, the fixing bracket 35 has a first fixing portion 351, a second fixing portion 352 and two clamp portions 353, and the clamp portions 353 are connected between the first fixing portion 351 and the second fixing portion 352; the second mounting portion 344 includes two second frames 3442 formed on the second mounting member 34, the two second frames 3442 are arranged side by side, and a clip groove (not labeled) is formed on a surface of the second frame 3442 opposite to the first frame 3321; wherein, the first fixing portion 351 and the second fixing portion 352 are fixedly connected to the second mounting member 34, and the end portion of the motor 31 is fixed between the corresponding clip portion 353 and the second frame 3442.

Specifically, during the assembly of the motor 31, the motor 31 is mounted between the fixing bracket 35 and the second mounting portion 344, and the clamp portion 353 formed by the fixing bracket 35 and the second frame 3442 formed by the second mounting portion 344 clamp the corresponding end portion of the motor 31, so that the motor 31 is fastened to the fixing bracket 35 and the second mounting portion 344. Since the motor 31 has a heavy weight, in order to improve connection reliability between the clip portion 353 and the second frame body 3442, the fixing bracket 35 may be fixed to the second mounting member 34 by a screw to improve connection reliability of the mounting portion of the motor 31.

In another embodiment, in order to save the amount of the screws, the first fixing portion 351 is provided with an outwardly extending plugging portion 354, and the supporting portion 343 is provided with a plugging mating portion 3433; the plugging portion 354 is plugged with the plugging mating portion 3433, and the second fixing portion 352 is fixed to the second mounting member 34 by a screw.

Specifically, during the assembly of the motor 31, the motor 31 is placed between the two second frames 3442 of the second mounting member 34, then the insertion portion 354 of the fixing bracket 35 is inserted into the insertion mating portion 3433 formed by the supporting portion 343, then the fixing bracket 35 is turned over so that the second fixing portion 352 abuts against the connecting portion 346, and then the second fixing portion 352 and the connecting portion 346 are fastened together by screws.

Meanwhile, for the structural optimization design of the second mounting piece 34, the first reinforcing ribs 345 are formed on the second surface of the second mounting piece 34 to improve the overall structural strength of the second mounting piece 34 through the first reinforcing ribs 345 so as to meet the requirement of mounting on the housing 1, and the first reinforcing ribs 345 are arranged on the second surface of the second mounting piece 34 to simplify the structural design on the first surface.

In another embodiment, in the case of fixedly mounting the motor 31 by using the fixing bracket 35, in order to increase the overall structural strength of the second mounting member 34, the second reinforcing ribs 3431, the third reinforcing ribs 3421, the fourth reinforcing ribs 3461, the fifth reinforcing ribs 3441 and the sixth reinforcing ribs 3471 are also disposed on the second mounting member 34 in the corresponding structures. In the hanging installation and use state of the indoor unit of the air conditioner, the second reinforcing rib 3431, the third reinforcing rib 3421, the fourth reinforcing rib 3461, the fifth reinforcing rib 3441 and the sixth reinforcing rib 3471 are all in a vertical arrangement state so as to meet the requirement of structural strength reinforcing design on the functional structure part extending outwards of the second mounting piece 34.

In still another embodiment of the present application, for the fan 32, the fan 32 is generally disposed on the support shaft 36 to achieve power transmission through connection of the support shaft 36 with the rotation shaft of the motor 31, and in the case that a plurality of fans 32 are disposed on the same support shaft 36, one end portion of the support shaft 36 is connected with the rotation shaft of the motor 31 through a coupling, and the other end portion of the support shaft 36 is required to be supported through a bearing 37. For this, as shown in fig. 9 to 17, the air conditioning indoor unit includes: a shell 1, wherein the shell 1 is provided with an air inlet 11 and an air outlet 12; a heat exchanger 2, the heat exchanger 2 being configured to exchange heat to an air flow flowing therethrough to form a heat exchanged air flow; the fan assembly 3, the fan assembly 3 includes a motor 31, a fan 32, a first mounting member 33 and a second mounting member 34, the first mounting member 33 is provided with a plurality of first volute sections 331 and at least one first mounting portion 332, and the first mounting portion 332 is located between two adjacent first volute sections 331; at least one of the first volute sections 331 has a first mounting bracket 335 disposed thereon; the second mounting member 34 is provided with a plurality of through holes 341, and the second mounting member 34 is provided with a plurality of second volute sections 342, at least one second mounting portion 344 and at least one second mounting bracket 340; the second mounting portion 344 is located between two adjacent second volute sections 342; the first mounting member 33 is detachably disposed on the second mounting member 34, a fixed mounting area is formed between the first mounting portion 332 and the second mounting portion 344, and the motor 31 is disposed in the fixed mounting area; a scroll chamber is formed between the first scroll portion 331 and the corresponding second scroll portion 342, the scroll chamber is communicated with the corresponding through hole 341, and the fan 32 is disposed in the corresponding scroll chamber; the two fans 32 adjacent to each other are connected together through a support shaft 36, one end of the support shaft 36 is connected with the rotating shaft of the motor 31, the other end of the support shaft 36 is provided with a bearing 37, and the bearing 37 is positioned between the first mounting bracket 335 and the second mounting bracket 340; the second mounting piece 34 is disposed in the housing 1 and divides the interior of the housing 1 into an air inlet cavity and an air outlet cavity, the air inlet 11 is communicated with the air inlet cavity, and the air outlet 12 is communicated with the air outlet cavity.

Specifically, in the case where two adjacent fans 32 are mounted and supported by the same support shaft 36, the other end of the support shaft 36 needs to be supported by a bearing 37 to ensure that the support shaft 36 can drive the two fans 32 to smoothly rotate in their respective worm cavities. For the mounting and fixing of the bearing 37, the fixed bearing 37 may be assembled by the first mounting bracket 335 provided on the first mounting member 33 cooperating with the second mounting bracket 340 provided on the second mounting member 34. Specifically, during assembly, the motor 31 and the fan 32 are placed at the corresponding positions of the second mounting member 34, and the bearing 37 disposed at the free end of the support shaft 36 is placed on the second mounting bracket 340. The first mount 33 is then assembled to the second mount 34 to enable the bearing 37 to be fixedly mounted between the first mounting bracket 335 and the second mounting bracket 340.

By providing mounting brackets for mounting the bearing 37 on the two mounting members, respectively, the fan 32 is preassembled to the second mounting bracket 340 provided on the second mounting member 34 through the rotation shaft in the actual assembly process, and then the first mounting member 33 is assembled to the second mounting member 34, at this time, the first mounting bracket 335 is connected with the second mounting bracket 340 and fixedly mounts the bearing 37 therebetween, so that it is not necessary to provide additional components to separately mount the bearing 37, thereby realizing reduction in the number of parts and improvement in assembly efficiency.

In one embodiment, a shock absorbing member 38 is further disposed between the first mounting bracket 335 and the second mounting bracket 340, and the shock absorbing member 38 is in a ring-shaped structure and is sleeved on the bearing 37. Specifically, in order to improve the installation reliability of the bearing 37 and to extend the service life of the bearing 37, and at the same time, reduce noise generated by vibration of the bearing 37 during operation, a shock absorbing member 38 is sleeved outside the bearing 37, and the bearing 37 is fixed between the first mounting bracket 335 and the second mounting bracket 340 through the shock absorbing member 38. Thus, in use, since the motor 31 drives the support shaft 36 to rotate, vibration generated by the fan 32 during air supply is transmitted to the bearing 37 via the support shaft 36, and the outside of the bearing 37 is wrapped by the damping member 38 and sandwiched between the first mounting bracket 335 and the second mounting bracket 340, and vibration generated by the bearing 37 is damped by the damping member 38, so as to achieve the effects of reducing noise and prolonging the service life of the bearing 37.

In another embodiment, in order to facilitate the assembly of the shock absorbing member 38 by an operator, a limiting portion 381 is provided on the shock absorbing member 38, and the limiting portion 381 extends toward the outside of the shock absorbing member 38; the second mounting bracket 340 is provided with a limiting groove 3401, and the limiting part 381 is inserted into the limiting groove 3401. Specifically, when an operator performs on-site assembly, the limiting portion 381 of the shock absorbing member 38 is inserted into the limiting groove 3401, so that the shock absorbing member 38 is preassembled on the second mounting bracket 340, and then, after the first mounting bracket is fixed on the second mounting member 34, the shock absorbing member 38 can be accurately clamped between the first mounting bracket 335 and the second mounting bracket 340, so as to ensure that the bearing 37 is accurately mounted in place.

Claims (10)

1. An air conditioning indoor unit, comprising:

The shell is provided with an air inlet and an air outlet;

a heat exchanger configured to exchange heat with an air flow flowing therethrough to form a heat exchanged air flow;

The fan assembly comprises a motor, a fan and a mounting part, wherein the mounting part is provided with a through hole, a fixed mounting area and a volute cavity are formed on the mounting part, the motor is arranged in the fixed mounting area, the fan is arranged in the volute cavity, and the volute cavity is communicated with the through hole;

An electrical box;

The installation part is arranged in the shell and divides the interior of the shell into an air inlet cavity and an air outlet cavity, the air inlet is communicated with the air inlet cavity, the air outlet is communicated with the air outlet cavity, the heat exchanger is arranged in the air outlet cavity, and the electrical box is arranged in the air inlet cavity or the air outlet cavity;

The electric appliance box is provided with a mounting substrate and at least one circuit board, wherein the mounting substrate is provided with a preassembling part and a locking part, and the circuit board is arranged on the mounting substrate; the electric appliance box is provided with a preassembly part and a locking matching part, the preassembly part is arranged on the preassembly part, and the locking matching part is arranged on the locking matching part.

2. The indoor unit of claim 1, wherein the pre-assembly portion is a plug tongue provided on the mounting substrate, the pre-assembly portion is a positioning jack provided on the electrical box, and the plug tongue is inserted into the positioning jack;

Or the locking part is a claw arranged on the mounting substrate, the locking matching part is a clamping groove arranged on the electrical box, and the claw is clamped in the clamping groove.

3. The indoor unit of claim 1, wherein the mounting substrate is provided with a plurality of mounting slots, edges of the mounting slots are provided with snap-fit locations, the circuit board is disposed in the corresponding mounting slot, and the snap-fit locations are snapped onto the circuit board and configured to position and secure the circuit board in the mounting slot.

4. An indoor unit for an air conditioner according to claim 3, wherein the clip-on positioning member comprises an elastic portion and a positioning projection, the positioning projection being arranged at a free end portion of the elastic portion, the elastic portion being provided on the mounting substrate, the positioning projection being pressed against the circuit board.

5. The indoor unit of claim 1, wherein the circuit board is connected with a plurality of cables;

The electrical box is provided with a first threading part and a second threading part, the first threading part is configured to lead out the cable from the electrical box and is arranged inside the shell, and the second threading part is configured to lead out the cable from the electrical box and extend out of the shell;

The mounting substrate is provided with a protection part, the protection part forms a closed or semi-closed wiring channel, and the wiring channel and the first threading part are oppositely arranged.

6. An indoor unit for air conditioning according to claim 5, wherein the mounting member comprises a first mounting member and a second mounting member, the first mounting member having a first volute section and a first mounting portion provided thereon; the second mounting piece is provided with the through hole, the second volute section and the second mounting part; the first mounting piece is detachably arranged on the second mounting piece, the fixed mounting area is formed between the first mounting part and the second mounting part, and the motor is arranged in the fixed mounting area; the first volute part and the second volute part form the volute cavity therebetween, the volute cavity is communicated with the through hole, and the fan is arranged in the corresponding volute cavity;

The second installation piece is provided with a fireproof part, the fireproof part is provided with a wiring part, the electrical box is arranged on the fireproof part, and part of the cable is arranged in the air inlet cavity and the air outlet cavity through the wiring part.

7. The indoor unit of claim 6, wherein the fireproof member is provided with a first notch structure, and the first notch structure forms the wiring portion; the first notch structure is configured for loading a cable into the first notch structure from a notch location of the first notch structure;

The second mounting piece is also provided with a second notch structure, and the second notch structure and the first notch are arranged side by side; the cable in the first notch structure also penetrates through the second notch structure.

8. The indoor unit of claim 7, wherein the second notch structure has a notch area greater than a notch area of the first notch structure; the cable passing through the second notch structure is not in contact with the inner surface of the second notch structure.

9. The indoor unit of claim 6, wherein the electrical box comprises a box body and a box cover, and the mounting substrate is disposed on the box body;

The box body is clamped on the fireproof part, the box body is fixed on the second mounting piece and/or the shell through screws, one end of the box cover is inserted on the shell, and the other end of the box cover is fixed on the second mounting piece and/or the shell through screws;

and an electric appliance cavity is formed among the box body, the box cover, the second mounting piece and the top plate and the bottom plate of the shell.

10. An air conditioning indoor unit, comprising:

The shell is provided with an air inlet and an air outlet;

a heat exchanger configured to exchange heat with an air flow flowing therethrough to form a heat exchanged air flow;

The fan assembly comprises a motor, a fan and a mounting part, wherein the mounting part is provided with a through hole, a fixed mounting area and a volute cavity are formed on the mounting part, the motor is arranged in the fixed mounting area, the fan is arranged in the volute cavity, and the volute cavity is communicated with the through hole;

An electrical box;

The installation part is arranged in the shell and divides the interior of the shell into an air inlet cavity and an air outlet cavity, the air inlet is communicated with the air inlet cavity, the air outlet is communicated with the air outlet cavity, the heat exchanger is arranged in the air outlet cavity, and the electrical box is arranged in the air inlet cavity or the air outlet cavity;

The electrical box comprises a mounting substrate and at least one circuit board, wherein a plurality of circuit boards are arranged on the mounting substrate and are uniformly assembled into the electrical box through the mounting substrate.