KR102587605B1 - Motor and method for assembling the motor - Google Patents

Abstract

The present invention relates to a motor and a method of assembling the motor. The purpose of the present invention is to provide a motor that reduces the number of parts and assembly man-hours and is easy to assemble, thereby reducing cost, difficulty, and time. Another object of the present invention is to provide a motor and a method of assembling the motor that improve airtightness while reducing the amount of sealing material used by increasing the amount of sealing material applied only in necessary areas and reducing the amount of sealing material received in unnecessary areas. It is in

Description

Motor and method for assembling the motor {Motor and method for assembling the motor}

The present invention relates to a motor, and more specifically, to an improved structure of a connector and a connector mounting portion of a motor and a method of assembling the motor accordingly.

In general, vehicles are equipped with air conditioning devices for cooling and heating the interior and cooling various devices in the engine room, and these air conditioning devices are necessarily equipped with cooling fans. At this time, the cooling fan is generally rotated by an electric motor.

In general, a motor consists of a rotor located at the center of the stator rotating according to changes in the magnetic field generated by the stator. In addition, AC motors are equipped with an inverter. The inverter is a device that connects the battery, motor, and generator and is responsible for controlling the rotation speed of the motor and converting the voltage. It converts the battery voltage to an optimal voltage with less power loss. It is transmitted to the motor and controls the rotation speed of the motor.

When the direction in which the motor's rotation axis extends is upward and downward, the inverter is generally connected and arranged below the motor. A board on which circuits for control, etc. are formed is placed inside the inverter, and a connector connecting the internal board and an external cable is formed on one side of the inverter. Japanese Patent Laid-Open No. 2005-117708 (“AC motor with integrated control means”, April 28, 2005, hereinafter referred to as “prior document”) discloses an example of a motor integrated with an inverter. The motor according to the prior literature is provided with a connector mounting portion for mounting the connector to the inverter housing. Gaps may be formed between the inverter housing and connectors, between connectors and cables, etc. To make these gaps watertight, a plurality of sealing members are used in the connector mounting part, or the connector body is made in the form of an elastically deformable grommet, etc. The structure was used.

However, these conventional motors had problems in that the mounting structure for mounting the connector to the inverter housing was complicated, and the assembly work for the electrical connection between the connector and the board was quite difficult.

1. Japanese Patent Publication No. 2005-117708 (“Control Means Integrated AC Motor”, April 28, 2005, hereinafter referred to as ‘Prior Literature’)

Therefore, the present invention was made to solve the problems of the prior art as described above, and the purpose of the present invention is to provide a motor that reduces the number of parts and assembly man-hours and is easy to assemble, thereby reducing cost, difficulty, and time. . Another object of the present invention is to provide a motor and a method of assembling the motor that improve airtightness while reducing the amount of sealing material used by increasing the amount of sealing material applied only in necessary parts and reducing the amount of sealing material received in unnecessary parts. It is provided.

The motor 1000 of the present invention for achieving the above-described purpose includes a motor unit 1100 that rotates an object; an inverter unit 1200 that controls the motor unit 1100; The inverter unit 1200 includes a housing 600 that is formed in the form of a container with an open top and includes a connector mounting portion 200 and a substrate mounting portion 400; A connector (100) connected to a wire (700) for transmitting and receiving external signals and accommodatingly coupled to the connector mounting portion (200); A substrate 300 that controls the motor unit 1100 according to the external signal and is accommodated and coupled to the substrate mounting unit 400; a cover 500 coupled to and sealing the upper surface of the housing 600 where the connector 100 and the substrate 300 are received and coupled; may include.

At this time, the inverter unit 1200 refers to the axial direction of the motor unit 1100 as the height direction, the extension direction of the wire 700 as the longitudinal direction, and the direction perpendicular to the height direction and the longitudinal direction as the width direction. When doing so, a mounting space (S) in the form of a groove is formed at the longitudinal outer end of the connector mounting portion 200, and has a shape corresponding to the shape of the longitudinal outer end of the connector 100. ), the longitudinal outer end of the connector 100 is fitted into the connector 100, so that the connector 100 can be formed to seal the side of the housing 600.

In addition, the inverter unit 1200 includes a wire connection protruding wall 111 that is disposed to be spaced inward from the outer end in the longitudinal direction and protrudes outward in the width direction, and the connector mounting portion 200 is It is disposed at the outer end in the longitudinal direction and includes a protruding wire connection attachment wall 211 that protrudes inward in the width direction, and the outer surface of the width direction end of the protruding wire connection wall 111 faces the inner surface of the connector mounting portion 200, The outer surface of the width direction end of the wire connection part protruding wall 211 is in contact with the outer surface of the connector 100, so that the wire connection part protruding wall 111, the inner surface of the connector mounting part 200, and the wire connection part protruding wall 211 ), the connector side sealing material 810 is accommodated in the space formed around the outer surface of the connector 100, so that the connector side sealing material 810 can watertight the gap formed on the side of the coupling portion of the connector 100.

Meanwhile, the connector 100 is disposed on the outside in the longitudinal direction and includes a wire connection part 110 connected to the wire 700, a central body portion 120 connected to the inner surface of the wire connection part 110 in the longitudinal direction, and a length. It may include a substrate connection portion 130 connected to the inner surface of the central body portion 120 in the direction and connected to the substrate 300.

In addition, the connector mounting portion 200 is disposed on the outer side in the longitudinal direction and accommodates the wire connecting portion 110, and is disposed on the inner side of the wire connecting portion mounting portion 210 in the longitudinal direction to form the central body. It may include a central body mounting portion 220 for accommodating the portion 120, and a substrate connection mounting portion 230 disposed inside the central body mounting portion 220 in the longitudinal direction to accommodate the substrate connecting portion 130. there is.

At this time, the wire connection part 110 includes a wire connection receiving hole 112 formed through the center of the wire connection part 110 in the height direction, and a connector bottom sealing material 820 is attached to the wire connection receiving hole 112. is accommodated, so that the connector bottom sealing material 820 can further watertight the gap formed on the bottom of the coupling portion of the connector 100.

At this time, the wire connection part 110 includes a wire connection outer wall 113 disposed on the outside in the longitudinal direction, a pair of wires disposed on both sides in the width direction, and the wire connection protruding wall 111 protruding outward in the width direction. It includes a connection side wall 114, an inner wire connection wall 115 disposed on the inside in the longitudinal direction and connected to the central body 120, and the wire connection receiving hole 112 is an outer wall of the wire connection part 113, It may be formed as a space surrounded by the wire connection side wall 114 and the wire connection inner wall 115.

Also, at this time, in the connector 100, the height of the central body portion 120 is lower than the height of the wire connection portion 110, so that a step is formed between the wire connection portion 110 and the central body portion 120. You can.

In addition, the central body portion 120 includes a central body receiving hole 122 formed through the center of the central body portion 120 in the height direction, and a wire circumferential sealing material 830 is provided in the central body receiving hole 122. ) is accommodated, so that the wire circumferential sealing material 830 can watertight the gap formed around the peripheral portion of the electric wire 700.

At this time, the central body portion 120 includes a pair of central body side walls 124 disposed on both sides in the width direction, and an outer wall of the central body portion disposed on the inner side in the longitudinal direction and connected to the substrate connection portion 130 ( 123), and the central body receiving hole 122 may be formed as a space surrounded by the central body outer wall 123, the central body side wall 124, and the inner surface of the wire connection portion 110.

Meanwhile, the connector 100 includes a wire housing 117 in which the wire connection part 110 is disposed in the wire connection receiving hole 112 and extends in the longitudinal direction and a wire penetration hole 116 is formed, The end of the wire 700 protrudes through the wire penetration hole 116, and the board connection part 130 protrudes upward in the height direction from the longitudinal inner end of the board connection part 130 to form the board 300. The wire 700 includes a terminal 131 connected to the board connection part 130 and a terminal connection part 133 protruding outward in the longitudinal direction from the longitudinal outer end of the board connection part 130, and protruding through the wire penetration hole 116. ) The end may be formed to be connected to the terminal connection portion 133 within the central body receiving hole 122.

In addition, the inverter unit 1200 includes a central body protruding wall 121 in which the connector 100 is disposed inside the wire connection protruding wall 111 in the longitudinal direction and protrudes outward in the width direction, The connector mounting portion 200 is disposed inside the wire connection protruding wall 111 and outside the central body protruding wall 121 in the longitudinal direction and protrudes inward in the width direction. ), and the central body mounting portion protruding wall 221 is connected to the wire connection portion protruding wall 111 and the central body protruding wall ( 121) It can be formed to fit into the space between them.

In addition, the cover 500 includes a coupling groove 510 formed to fit the upper end of the connector 100 and the housing 600 assembly into the lower surface of the cover 500, wherein the connector 100 and the In the connector 100 portion of the housing 600 assembly, the coupling groove 510 is a volume formed by being surrounded by the wire connection part protruding wall 111, the wire connection part mounting part protrusion wall 211, and the housing 600. It is formed in a shape corresponding to the upper outer circumference, and in the housing 600 portion of the connector 100 and the housing 600 assembly, the coupling groove 510 has a shape corresponding to the upper outer circumference of the housing 600. can be formed.

Additionally, the inverter unit 1200 may be formed such that the connector coupling portion 125 formed on the connector 100 and the connector mounting portion coupling portion 225 formed on the connector mounting portion 200 are coupled to each other. At this time, the inverter unit 1200 has the connector coupling portion 125 and the connector mounting portion coupling portion 225 formed in a hole shape, and the connector coupling portion 125 and the connector mounting portion coupling portion 225. They can be formed to be coupled to each other by simultaneously penetrating bolts.

In addition, in the assembling method of the motor 1000 of the present invention, the connector 100 is lowered in the height direction and inserted into the connector mounting portion 200 of the housing 600. step; Step of injecting and receiving a sealing material 800 so that the gap between the connector 100 and the connector mounting portion 200 is watertight; The substrate 300 is lowered in the height direction, and the terminal 131 formed in the connector 100 is inserted into the pinhole 310 formed in the substrate 300 to be connected; Completing the assembly of the inverter 1200 by lowering the cover 500 in the height direction to cover and couple the upper surfaces of the connector 100, the board 300, and the housing 600 assembly; Completing assembly of the motor 1000 by assembling the motor unit 1100 on the upper surface of the cover 500; may include.

According to the present invention, in that a separate terminal is not required to connect a connector that serves as a connector to the inverter board, the number of parts and assembly man-hours can be reduced compared to the existing one, thereby reducing product costs. There is. In addition, by improving the structure in which the terminal is removed, the overall assembly process can be performed much more smoothly and easily by assembling the connector to the inverter housing before the board, which has the effect of reducing the difficulty and time of the assembly process.

In addition, according to the present invention, by improving the shape of the connector, it is possible to increase the amount of sealing material applied at the joint between the connector and the inverter housing, which has the effect of improving sealing properties. Additionally, in this shape improvement process, the space unnecessarily filled with the sealing member is minimized, which ultimately has the effect of reducing the overall usage of the sealing member.

1 is an assembled perspective view of the motor of the present invention.
Figure 2 is an exploded perspective view of the inverter unit of the present invention.
Figure 3 is an exploded perspective view of the connector and housing assembly.
Figure 4 is an assembled perspective view of the connector and housing assembly.
Figure 5 is a perspective view of one side of the connector.
Figure 6 is a perspective view from the other side of the connector.

Hereinafter, the motor according to the present invention having the above-described configuration and the method of assembling the motor will be described in detail with reference to the attached drawings.

[1] Overall configuration of the motor of the present invention and method of assembling the motor

Figure 1 shows an assembled perspective view of the motor of the present invention, and Figure 2 shows an exploded perspective view of the inverter portion of the present invention. As shown in FIG. 1, the motor 1000 of the present invention includes a motor unit 1100 that rotates an object and an inverter unit 1200 that controls the motor unit 1100. It is an inverter-integrated motor that is arranged and combined on the upper and lower sides along the axial direction to form an integrated motor. At this time, the inverter unit 1200 includes a housing 600, a connector 100, a substrate 300, and a cover 500 in the order from bottom to top in FIG. 2.

The housing 600 is formed in the form of a container with an open top, and includes a connector mounting portion 200 and a substrate mounting portion 400. The connector 100 is connected to a wire 700 for transmitting and receiving external signals, and is accommodated and coupled to the connector mounting portion 200. At this time, the external signal may include a control signal defining the power for rotating the motor and the number of rotations of the motor. The substrate 300 controls the motor unit 1100 according to the external signal and is accommodated and coupled to the substrate mounting unit 400. The cover 500 is coupled to the upper surface of the housing 600 where the connector 100 and the board 300 are accommodated and coupled.

Below, the specific composition and connection relationships of each part are explained. At this time, as shown in FIG. 2, the axial direction of the motor unit 1100 is referred to as the height direction, the extending direction of the electric wire 700 is referred to as the longitudinal direction, and the direction perpendicular to the height direction and the longitudinal direction is referred to as the width direction. And the subsequent explanation follows the above-described direction axis.

As can be intuitively seen from FIG. 2, the housing 600 is formed in the shape of a container in which side walls protruding from the outer bottom surface are formed surrounding the entire side surface. At this time, the side of the portion for mounting the connector 100, that is, the connector mounting portion 200, is open to allow the connector 100 to be smoothly inserted. By inserting the connector 100 into this open space, the side of the housing 600 can be closed.

Figure 3 is an exploded perspective view of the connector and housing assembly, and Figure 4 is an assembled perspective view of the connector and housing assembly. To explain more clearly with further reference to FIG. 3, at the longitudinal outer end of the connector mounting portion 200, there is a mounting space S in the form of a groove whose shape corresponds to the shape of the longitudinal outer end of the connector 100. is formed, and the longitudinal outer end of the connector 100 is fitted into the mounting space (S). Accordingly, as shown in FIG. 4, the connector 100 seals the side of the housing 600.

At this time, after assembly is completed, it would be ideal for the connector 100 to fit tightly into the housing 600 so that there is no gap, but in reality, a small gap may occur between the connector 100 and the housing 600. And the sealing material to make it watertight must be injected at an appropriate location. The configuration related to this will be described in more detail later, and here, the advantages obtained by introducing the connector 100 structure and the assembly method of the motor 1000 at this time will first be described.

In order to control the motor unit 1100, a plurality of wires 700 for power supply and signal transmission and reception must be connected to the motor unit 1100. However, connecting the wires 700 one by one to the plurality of terminals formed on the motor unit 1100 causes excessive increase in assembly man-hours and time. At this time, the present invention solves this problem by using the connector 100.

As described above, the wire 700 is connected to the connector 100, and the board 300, on which a circuit for power supply or signal transmission and reception control is formed, is connected to the motor unit 1100. That is, as long as the connector 100 and the board 300 are connected, the wire 700 and the motor unit 1100 can be electrically connected. At this time, as can be intuitively seen from FIG. 2, according to the structure of the present invention, by simply assembling each part, the terminal 131 formed in the connector 100 is connected to the pinhole 310 formed in the substrate 300. By being fitted, the connector 100 and the board 300 are smoothly connected.

More specifically, the assembly method of the motor 1000 of the present invention will be described step by step as follows. First, with the housing 600 placed at the bottom, the connector 100 is lowered in the height direction and inserted into the connector mounting portion 200 of the housing 600. Next, the sealing material 800 is injected and accommodated so that the gap between the connector 100 and the connector mounting portion 200 is watertight. Next, the board 300 is lowered in the height direction, and the terminal 131 formed in the connector 100 is inserted into the pinhole 310 formed in the board 300 and connected. Next, the cover 500 is lowered in the height direction to cover and couple the upper surfaces of the connector 100, the board 300, and the housing 600 assembly, thereby completing the assembly of the inverter 1200. Finally, the motor unit 1100 is assembled on the upper surface of the cover 500, thereby completing the assembly of the motor 1000.

Among these assembly method steps, especially in the process of connecting the connector 100 and the board 300, only mechanical assembly is performed and no separate processes such as soldering for electrical connection are required. Therefore, according to the present invention, by introducing the structure of the connector 100, the overall assembly man-hours and time can be greatly saved. Additionally, as the assembly process is simplified, the increase in defect rates caused by factors such as poor connection during the assembly process can be greatly suppressed.

[2] Specific composition of the sealing structure

Hereinafter, the sealing structure around the connector 100 mentioned above and, in relation to this, the specific configuration of the connector 100 and the connector mounting portion 200 will be described in more detail. For this purpose, further refer to FIGS. 5 and 6, which are perspective views of one side and the other side of the connector 100, in addition to FIGS. 3 (connector-connector mounting portion exploded perspective view) and FIG. 4 (connector-connector mounting portion assembled perspective view).

2-1. Sealing structure of connector side sealing material (810)

Hereinafter, the sealing structure of the connector side sealing material 810 shown in FIG. 4 and each part of the connector 100 and the connector mounting portion 200 related thereto will be described.

As shown in Figure 4, the connector 100 is arranged to be spaced inward from the outer end in the longitudinal direction and includes a protruding wire connection wall 111 that protrudes outward in the width direction. Additionally, the connector mounting portion 200 is disposed at an outer end in the longitudinal direction and includes a wire connection mounting portion protruding wall 211 that protrudes inward in the width direction. The wire connection mounting portion protruding wall 211 substantially corresponds to the end of the mounting space S shown in FIG. 3.

At this time, the outer surface of the widthwise end of the wire connection protruding wall 111 is in contact with the inner surface of the connector mounting portion 200, and the outer surface of the widthwise end of the wire connection protruding wall 211 is in contact with the outer surface of the connector 100. are placed accordingly. Accordingly, the wire connection part protruding wall 111, the inner surface of the connector mounting part 200, the wire connection part protruding wall 211, and the outer surface of the connector 100 form one closed space. The connector side sealing material 810 is injected and accommodated in this space.

As can be intuitively seen in FIG. 4, the space formed by the wire connection protruding wall 111, the inner surface of the connector mounting portion 200, the wire connection portion protruding wall 211, and the outer surface of the connector 100 are formed. , If there is a gap, it is the part that communicates directly with the outside. In other words, this space must be securely watertight to prevent moisture, etc. from outside penetrating into the inverter unit 1200. However, as can be seen in FIG. 4, in the present invention, this space is formed to have a considerably small volume. That is, by applying the structure of the present invention, it is possible to achieve reliable watertightness on the side of the coupling portion of the connector 100 without using a large amount of sealing material unnecessarily.

2-2. Sealing structure of the connector bottom sealing material (820)

Hereinafter, the sealing structure of the connector bottom sealing material 820 shown in FIG. 4 and each part of the connector 100 and the connector mounting portion 200 related thereto will be described.

First, the configuration of the connector 100 will be described in more detail. The connector 100 may include a wire connection portion 110, a central body portion 120, and a substrate connection portion 130, considering its role and location. The wire connection part 110 is disposed on the outside in the longitudinal direction and is connected to the wire 700, and the central body part 120 is a part connected to the inner surface of the wire connection part 110 in the longitudinal direction. The substrate connection portion 130 is connected to the inner surface of the central body portion 120 in the longitudinal direction and is connected to the substrate 300. In reality, these three parts are integrated, and accordingly, each part is colored in Figures 3 to 5 to facilitate distinction.

In addition, when the connector 100 is divided in this way, the connector mounting portion 200 also corresponds to the wire connection mounting portion 210, which is disposed on the outside in the longitudinal direction and accommodates the wire connecting portion 110, A central body mounting portion 220 disposed inner than the wire connection mounting portion 210 to accommodate the central body portion 120, and disposed inner than the central body mounting portion 220 in the longitudinal direction to accommodate the substrate connection portion ( It includes a substrate connection mounting portion 230 that accommodates 130).

The connector side sealing material 810 described above was able to effectively watertight the gap formed on the side of the connecting portion of the connector 100 even with a small amount. However, the connector side sealing material 810 cannot watertight the gap formed on the lower surface of the connecting portion of the connector 100 due to its location. For effective watertightness of this portion, the connector 100, more specifically, the wire connection portion 110, includes a wire connection receiving hole 112 through which the connector bottom sealing material 820 can be further injected.

As shown in FIG. 4, the wire connection part 110 includes a wire connection receiving hole 112 formed through the center of the wire connection part 110 in the height direction. The wire connection receiving hole 112 itself is in the form of a through hole, but when the connector 100 and the connector mounting portion 200 are combined, the lower surface of the wire connecting portion receiving hole 112 is blocked by the connector mounting portion 200. A space that can accommodate the sealing material is formed. The connector bottom sealing material 820 is injected into this space and received.

When the wire connection accommodating hole 112 is approximately rectangular in shape as shown in FIG. 4, the wire connection part 110 is disposed on both sides of the wire connection outer wall 113 arranged on the outside in the longitudinal direction and in the width direction. The wire connection protruding wall 111 includes a pair of wire connection side walls 114 that protrude outward in the width direction, and a wire connection inner wall 115 disposed on the inside in the longitudinal direction and connected to the central body portion 120. It will be included. At this time, the wire connection receiving hole 112 is formed as a space surrounded by the wire connection outer wall 113, the wire connection side wall 114, and the wire connection inner wall 115. Of course, this is only an example, and the wire connection receiving hole 112 does not necessarily have to have a rectangular parallelepiped shape.

As can be intuitively seen from FIG. 4, the space formed by the wire connection receiving hole 112 is a part that directly communicates with the outside if there is a gap, and the connector bottom sealing material 820 is here. By being injected, it is possible to achieve reliable watertightness of the lower surface of the connecting portion of the connector 100.

Meanwhile, in the connector 100, as shown in FIGS. 3 to 6, the height of the central body portion 120 is lower than the height of the wire connecting portion 110, so that the wire connecting portion 110 and the central body A step may be formed between the parts 120. By having this shape, the receiving depth of the wire connection receiving hole 112 can be significantly reduced. Accordingly, the injection amount of the connector bottom sealing material 820 accommodated in the wire connection receiving hole 112 can be reduced.

The connector bottom sealing material 820 serves to completely watertight the bottom surface of the connector 100, so it is obvious that it does not need to be filled to a very high position from the bottom surface of the connector 100. At this time, as described above, by forming the receiving depth of the wire connection receiving hole 112 to be low, the sealing material can be applied to essential parts while at the same time reducing the overall amount of sealing material, thereby avoiding unnecessary use of a large amount of sealing material. Without this, the effect of realizing reliable watertightness on the side of the coupling portion of the connector 100 can be further improved.

2-3. Sealing structure of the wire circumference sealing material (830)

Hereinafter, the sealing structure of the wire circumference sealing material 830 shown in FIG. 4 and each part of the connector 100 and the connector mounting portion 200 related thereto will be described.

The connector side sealing material 810 and the connector bottom sealing material 820 described above played a role in watertightening the circumference (side, bottom) of the connecting portion of the connector 100. At this time, a gap is formed in the connector 100 at the part where the electric wire 700 is coupled, and the connector side sealing material 810 and the connector bottom sealing material 820 cannot watertight the gap in this portion. For effective watertightness of this portion, the connector 100, more specifically, the central body portion 120, includes a central body receiving hole 122 into which the wire circumferential sealing material 820 can be further injected.

As shown in Figure 4, the central body portion 120 includes a central body receiving hole 122 formed through the center of the central body portion 120 in the height direction. Like the wire connection receiving hole 112 described above, the lower surface of the central body receiving hole 122 is blocked by the connector mounting portion 200 to form a space that can accommodate the sealing material. The wire circumference sealing material 830 is injected and accommodated in this space.

When the central body portion receiving hole 122 is approximately rectangular in shape as shown in FIG. 4, the central body portion 120 includes a pair of central body side walls 124 disposed on both sides in the width direction, length It is disposed on the inside direction and includes a central body outer wall 123 connected to the substrate connection part 130. At this time, the central body receiving hole 122 is formed as a space surrounded by the central body outer wall 123, the central body side wall 124, and the inner surface of the wire connection portion 110. Of course, like the wire connection accommodating hole 112 described above, this is only an example, and the central body accommodating hole 122 does not necessarily have to have a rectangular parallelepiped shape.

As can be intuitively seen in FIG. 4, the space formed by the central body receiving hole 122 is a part that directly communicates with the outside when there is a gap around the wire 700, and the wire is here. By injecting the circumferential sealing material 830, it is possible to achieve reliable watertightness around the peripheral portion of the electric wire 700.

[3] Other configurations

3-1. Electrical connection structure inside the connector 100

As described above, the connector 100 is connected to the wire 700 on one side and the terminal 131 is formed on the other side. Then, it is obvious that the end of the wire 700 and the terminal 131 must be electrically connected inside the connector 100. Hereinafter, the electrical connection structure inside the connector 100 will be described in detail. For electrical connection between the wire 700 and the terminal 131 inside the connector 100, the connector 100 has the following additional additions to the wire connection part 110 and the board connection part 130. It has more configuration.

The wire connection portion 110 includes a wire housing 117 disposed within the wire connection receiving hole 112, extending in the longitudinal direction, and having a wire penetration hole 116 formed therein. Accordingly, the end of the wire 700 protrudes through the wire penetration hole 116 as shown in FIGS. 3 and 4.

The board connection part 130 has a terminal 131 that protrudes upward in the height direction from the longitudinal inner end of the board connection part 130 and is connected to the board 300, and has a length at the longitudinal outer end of the board connection part 130. It includes a terminal connection portion 133 that protrudes outward. At this time, the terminal 131 and the terminal connection portion 133 may be made of a single metal (electrical conductor), but in this case, the volume of the metal increases and the electrical resistance may increase unnecessarily. Accordingly, the board connection part 130 is made of the same material (insulator) as the remaining part of the connector 100, and electrically connects the terminal 131 and the terminal connection part 133 therein, thereby reducing unnecessary electrical resistance. To prevent increase, a terminal support portion 132 as shown may be further included.

When the connector 100 is formed in this way, the end of the wire 700 protruding through the wire penetration hole 116 is connected to the terminal connection part 133 within the central body receiving hole 122. By being formed, electrical connection between the wire 700 and the terminal 131 within the connector 100 can be realized. The end of the wire 700 and the terminal connection part 133 may be fixed by soldering or the like. Meanwhile, in the process of assembling the inverter unit 1200, the wire circumference sealing material 830 is injected into the central body receiving hole 122, and the wire circumference sealing material 830 is inevitably formed on the wire 700 and the terminal 131. ) covers the electrical connection part. As a result, the electrical connection portion between the wire 700 and the terminal 131 can be stably protected and fixed by the wire circumference sealing material 830.

3-2. Guidance structure when connecting connector (100)

As described above, the connector 100 is tightly fitted into the connector mounting portion 200 and serves to seal the side of the housing 600. At this time, if the connector 100 is not placed in the correct position in the longitudinal direction, that is, if it is fixed in a protruding or recessed state from the side of the housing 600, structural imbalance in the device may occur, resulting in unnecessary vibration or noise. It can happen. In order to prevent this problem, the connector 100 and the connector mounting portion 200 further have the following additional configuration.

The connector 100 includes a central body protruding wall 121 that is disposed inside the wire connection protruding wall 111 in the longitudinal direction and protrudes outward in the width direction. At this time, in order to realize a more stable coupling structure, the outer surface of the longitudinal end of the central body protruding wall 121 is formed to face the inner surface of the central body mounting portion 220, that is, the central body mounting portion side wall 224. It is desirable to be

The connector mounting portion 200 is disposed inside the wire connection portion protruding wall 111 and outside the center body portion protruding wall 121 in the longitudinal direction and protrudes inward in the width direction. ) includes. At this time, in the connector mounting portion 200, a wire connecting portion mounting side wall 214 is formed between the wire connecting portion mounting portion protruding wall 211 and the central body mounting portion protruding wall 221.

When the connector 100 is formed in this way, the central body mounting portion protruding wall 221 may be formed to fit into the space between the wire connection portion protruding wall 111 and the central body protruding wall 121. . By doing this, when the connector 100 is lowered in the height direction and coupled to the connector mounting portion 200, the connector 100 can be correctly guided to the correct position in the longitudinal direction according to the above-described structure.

3-3. Cover (500) structure

As described above, the connector 100 (and the substrate 300) are accommodated and coupled to the housing 600. The assembly of the inverter unit 1200 is completed by covering the cover 500. At this time, if the connection between the connector 100 and the housing 600 assembly and the cover 500 is not watertight, moisture may occur again. There is a risk of penetration. To prevent this risk, the cover 500 has the following structure.

The cover 500 includes a coupling groove 510 on the lower surface of the cover 500, so that the upper end of the connector 100 and the housing 600 assembly is inserted into the coupling groove 510. is formed At this time, the shape of the coupling groove 510 will be described in more detail as follows. First, in the connector 100 portion of the connector 100 and the housing 600 assembly, the coupling groove 510 is connected to the wire connection part protruding wall 111, the wire connection part mounting part protrusion wall 211, and the housing. It is formed in a shape corresponding to the outer circumference of the top of the volume formed by being surrounded by (600). Additionally, in the housing 600 portion of the connector 100 and housing 600 assembly, the coupling groove 510 is formed in a shape corresponding to the upper outer periphery of the housing 600.

When the cover 500 is formed in this way, simply by performing an assembly process to cover and couple the cover 500 to the top of the connector 100 and the housing 600 assembly, the connector 100 and Watertightness at the top of the housing 600 assembly can be effectively realized.

3-4. Connector (100) and connector mounting portion (200) combined structure

The various shapes of the connector 100 and the connector mounting portion 200 described above are intended to ensure that the connector 100 and the connector mounting portion 200 are tightly assembled, and this shape structure alone is sufficient to securely couple the connector 100 and the connector mounting portion 200. It is difficult to achieve. Accordingly, a separate connector coupling portion 125 is formed in the connector 100, and the connector mounting portion coupling portion 225 is formed in the connector mounting portion 200, and the connector coupling portion 125 and The connector mounting portion coupling portion 225 is coupled to each other. More specifically, as shown in Figures 3 and 4, the connector coupling portion 125 and the connector mounting portion coupling portion 225 are formed in the shape of a hole, and the connector coupling portion 125 and the connector mounting portion It can be formed to be coupled to each other by bolts simultaneously penetrating the coupling portion 225.

The present invention is not limited to the above-described embodiments, and its scope of application is diverse, and anyone skilled in the art can understand it without departing from the gist of the invention as claimed in the claims. Of course, various modifications are possible.

1000: motor
1100: motor unit 1200: inverter unit
100: connector
110: Wire connection part
111: wire connection protruding wall 112: wire connection receiving hole
113: outer wall of wire connection 114: side wall of wire connection
115: Inner wall of wire connection part 116: Wire penetration hole
117: wire housing
120: Central body part
121: Central body protruding wall 122: Central body receiving hole
123: central body outer wall 124: central body side wall
125: Connector coupling part
130: Board connection part
131: terminal 132: terminal support
133: terminal connection part
200: Connector mounting part
210: Wire connection attachment part
211: Protruding wall of wire connection mounting part 214: Side wall of wire connection mounting part
220: Center body mounting part
221: Central body mounting portion protruding wall 224: Central body mounting portion side wall
225: Connector mounting part coupling part
230: Board connection mounting part
300: substrate 310: pinhole
400: Board mounting part
500: Cover 510: Coupling groove
600: Housing 700: Electric wire
800: Sealing material
810: Connector side sealing material 820: Connector bottom sealing material
830: Electric wire circumference sealing material

Claims (16)

a motor unit that rotates the object; an inverter unit that controls the motor unit; Including,
The inverter unit,
A housing formed in the shape of a container with an open upper surface and including a connector mounting portion and a substrate mounting portion; A connector connected to a wire for transmitting and receiving external signals and accommodating and coupled to the connector mounting portion; a substrate that controls the motor unit according to the external signal and is accommodated and coupled to the substrate mounting unit; a cover coupled to and sealing the upper surface of the housing where the connector and the board are accommodating; Including,
The inverter unit,
When the axial direction of the motor unit is the height direction, the extension direction of the wire is the longitudinal direction, and the direction perpendicular to the height direction and the longitudinal direction is the width direction,
A mounting space in the form of a groove corresponding to the shape of the longitudinal outer end of the connector is formed at the longitudinal outer end of the connector mounting portion, and the longitudinal outer end of the connector is fitted into the mounting space,
The connector is formed to seal the side of the housing,
The connector is disposed to be spaced inward from the outer end in the longitudinal direction and includes a wire connection protruding wall that protrudes outward in the width direction, and the connector mounting portion is disposed at the outer end in the longitudinal direction and includes a protruding wire connection mounting wall that protrudes inward in the width direction. Includes,
The outer surface of the widthwise end of the wire connection protruding wall is in contact with the inner surface of the connector mounting portion, and the outer surface of the widthwise end of the protruding wire connection portion mounting wall is in contact with the outer surface of the connector,
A connector side sealing material is accommodated in a space formed by the wire connection protruding wall, the inner surface of the connector mounting part, the wire connection part protruding wall, and the outer surface of the connector,
A motor, wherein the connector side sealing material watertightens a gap formed on a side of the connector coupling portion.
delete delete The method of claim 1, wherein the connector is:
A wire connection part disposed on the outside in the longitudinal direction and connected to the wire,
A central body portion connected to the inner surface of the wire connection portion in the longitudinal direction,
A substrate connection portion connected to the inner surface of the central body in the longitudinal direction and connected to the substrate.
A motor comprising:
The method of claim 4, wherein the connector mounting portion is:
A wire connection mounting part disposed on the outside in the longitudinal direction to accommodate the wire connection part,
A central body mounting portion disposed inside the wire connection mounting portion in the longitudinal direction to accommodate the central body portion,
A substrate connection mounting portion disposed inside the central body mounting portion in the longitudinal direction to accommodate the substrate connection portion.
A motor comprising:
The method of claim 4, wherein the wire connection part is:
It includes a wire connection receiving hole formed through the center of the wire connection part in the height direction,
When the connector is inserted into the wire connection hole, the sealing material is accommodated,
A motor, wherein the connector bottom sealing material further watertightens the gap formed on the bottom of the connector coupling portion.
The method of claim 6, wherein the wire connection part is:
The outer wall of the wire connection is disposed on the outside in the longitudinal direction,
A pair of wire connection side walls arranged on both sides in the width direction, wherein the wire connection protruding walls protrude outward in the width direction,
The inner wall of the wire connection is disposed on the inside in the longitudinal direction and connected to the central body.
Includes,
A motor, wherein the wire connection receiving hole is formed as a space surrounded by an outer wall of the wire connection part, a side wall of the wire connection part, and an inner wall of the wire connection part.
The method of claim 6, wherein the connector is:
A motor, characterized in that the height of the central body is lower than the height of the wire connection portion, thereby forming a step between the wire connection portion and the central body portion.
The method of claim 6, wherein the central body portion is:
It includes a central body receiving hole formed through the center of the central body in the height direction,
The wire circumferential sealing material is accommodated in the central body receiving hole,
A motor, wherein the wire circumference sealing material watertightens a gap formed around a peripheral portion of the wire.
The method of claim 9, wherein the central body portion,
A pair of central body side walls arranged on both sides in the width direction,
The outer wall of the central body is disposed on the inside in the longitudinal direction and connected to the substrate connection part.
Includes,
The motor, wherein the central body receiving hole is formed as a space surrounded by an outer wall of the central body, a side wall of the central body, and an inner surface of the wire connection portion.
The method of claim 9, wherein the connector is:
The wire connection part includes a wire housing disposed in the wire connection receiving hole, extending in the longitudinal direction and forming a wire penetration hole, and the end of the wire protrudes through the wire penetration hole,
The board connection part includes a terminal that protrudes upward in the height direction from an inner end in the longitudinal direction of the board connection part and is connected to the board, and a terminal connection part that protrudes outward in the longitudinal direction from an outer end in the longitudinal direction of the board connection part,
A motor, characterized in that the end of the wire protruding through the wire penetration hole is formed to be connected to the terminal connection part within the central body receiving hole.
The method of claim 1, wherein the inverter unit,
The connector includes a central body protruding wall disposed inside the wire connection protruding wall in the longitudinal direction and protruding outward in the width direction,
The connector mounting portion includes a central body mounting portion protruding wall disposed inside the wire connection portion protruding wall in the longitudinal direction and outer than the center body protruding wall and protruding inward in the width direction,
A motor, wherein the central body mounting portion protruding wall is formed to fit into a space between the wire connection portion protruding wall and the central body protruding wall to guide the coupling between the connector and the connector mounting portion.
The method of claim 1, wherein the cover:
It includes a coupling groove formed on the lower surface of the cover so that the upper end of the connector and the housing assembly is inserted,
In the connector portion of the connector and the housing assembly, the coupling groove is formed in a shape corresponding to the outer periphery of the upper end of the volume formed by being surrounded by the wire connection protruding wall, the wire connection mounting part protrusion wall, and the housing,
A motor, wherein in the housing portion of the connector and the housing assembly, the coupling groove is formed in a shape corresponding to an upper outer periphery of the housing.
The method of claim 1, wherein the inverter unit,
A motor, characterized in that the connector coupling portion formed on the connector and the connector mounting portion coupling portion formed on the connector mounting portion are formed to be coupled to each other.
The method of claim 14, wherein the inverter unit,
A motor characterized in that the connector coupling portion and the connector mounting portion coupling portion are formed in a hole shape, and are formed to be coupled to each other by a bolt simultaneously penetrating the connector coupling portion and the connector mounting portion coupling portion.
In the motor assembly method according to claim 1,
lowering the connector in a height direction and inserting it into the connector mounting portion of the housing;
Injecting and receiving a sealing material so that the gap between the connector and the connector mounting portion is watertight;
lowering the board in a height direction, and connecting a terminal formed on the connector by inserting it into a pinhole formed on the board;
Completing the inverter assembly by lowering the cover in a height direction to cover and couple the upper surfaces of the connector, the board, and the housing assembly;
Completing the motor assembly by assembling the motor unit on the upper surface of the cover;
A method of assembling a motor comprising:

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