CN211173703U

CN211173703U - Door leaf, air conditioning box and heat exchange system

Info

Publication number: CN211173703U
Application number: CN201921770443.3U
Authority: CN
Inventors: 项小元; 柴国红
Original assignee: Trane Air Conditioning Systems China Co Ltd
Current assignee: Trane Air Conditioning Systems China Co Ltd
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-08-04
Anticipated expiration: 2029-10-21

Abstract

The application discloses door leaf, air conditioning cabinet and heat transfer system. The door leaf comprises a sheet metal part and a connecting part, wherein the sheet metal part comprises an inner sheet metal and an outer sheet metal which are oppositely arranged; the connecting piece comprises an annular main body part and a flange part which extends outwards along one end of the main body part, and the flange part is annular; the main part includes first end and second end along the axis direction, first end is connected outer panel beating, the second end is connected interior panel beating, flange portion set up in first end. Through set up the flange portion in the one end of main part, the flange portion can be covered in door leaf and door frame, perhaps in the clearance between door leaf and the shell of air conditioning box, avoids the air in the air conditioning box to pass through the direct and external intercommunication in clearance to play the effect of avoiding the leakage of air in the air conditioning box, promoting the seal performance of air conditioning box.

Description

Door leaf, air conditioning box and heat exchange system

Technical Field

The application relates to the field of heat exchange, in particular to a door leaf, an air conditioning box and a heat exchange system.

Background

The air conditioning cabinet is also called a combined air processing unit, is generally applied to large places such as factories, office buildings, markets, hotels and the like, and has the function of integrating a refrigerating function and a heating function. The air conditioning box is internally provided with a preheating coil, a heating coil, a refrigerating coil, a blower filter and other devices. In the actual use process, the device in the air-conditioning box needs to be maintained and repaired regularly, usually, an openable door leaf is arranged in the shell of the air-conditioning box, and a maintainer can open the door leaf and then enter the air-conditioning box to maintain and repair the device in the air-conditioning box.

The door frame is usually installed on the shell in the existing design, the door frame and the door leaf are connected through the hinge, the thickness of the door leaf is generally large, the door leaf can rotate relative to the door frame and the shell in order to guarantee that the door leaf can rotate relative to the door frame and the shell, the size of the door leaf is usually set to be smaller than that of the door frame, therefore, when the door leaf is arranged in the door frame, a gap exists between the door leaf and the door frame (or the shell), a good airtight effect cannot be effectively played, and cold air in the air-conditioning box can leak.

SUMMERY OF THE UTILITY MODEL

The application provides a door leaf, air conditioning box and heat transfer system, its sealing performance that can promote the air conditioning box.

According to a first aspect of the present application, there is provided a door leaf for an air conditioning box, the door leaf comprising:

the sheet metal part comprises an inner sheet metal and an outer sheet metal which are oppositely arranged;

the connecting piece comprises an annular main body part and a flange part extending outwards along one end of the main body part, and the flange part is annular;

the main body part comprises a first end and a second end along the axis direction, the first end is connected with the outer metal plate, the second end is connected with the inner metal plate, and the flange part is arranged at the first end.

Furthermore, the folded edges of the inner metal plate and the outer metal plate are embedded into the connecting piece, the inner metal plate and the outer metal plate are arranged at intervals, and at least part of the connecting piece is arranged between the inner metal plate and the outer metal plate; the thermal conductivity of the material of the connecting piece is smaller than the thermal conductivity of the material of the inner metal plate and the material of the outer metal plate.

Furthermore, the size of the second end of the main body part is smaller than that of the first end of the main body part, and the size of the inner metal plate is smaller than that of the outer metal plate.

Furthermore, the main body part comprises an internal connection part, a transition part and an external connection part, and two ends of the transition part are respectively connected with the internal connection part and the external connection part;

the external connecting part is used for fixing the external metal plate and serves as the first end; the inner connecting part is used for fixing the inner metal plate and serves as the second end;

the transition portion tapers in size in a direction from the first end toward the second end.

Furthermore, the end surface of the external connecting part is inwards recessed to form a first accommodating space for accommodating the external metal plate, and the size of the first accommodating space is gradually narrowed along the direction from the first end to the second end; the end face of the inner connecting part is inwards recessed to form a second accommodating space for accommodating the inner metal plate, and the size of the second accommodating space is gradually reduced along the direction from the second end to the first end; and/or the presence of a gas in the gas,

the transition part is internally provided with a hollow accommodating space.

Further, the material of the connecting piece is plastic.

According to a second aspect of the present application, there is provided an air conditioning box comprising a housing and a door leaf as described above, the door leaf and the housing being connected by a hinge member.

Furthermore, the shell is provided with a frame body, the frame body is provided with an installation space for accommodating the door leaf, and the size of the first end of the connecting piece is smaller than that of the installation space;

the frame body includes relative first side and the second side that sets up, the hinge spare is connected first side with the door leaf, the hinge spare includes the pivot, works as the door leaf winds when the pivot rotates, keeping away from of interior panel beating the side of hinge spare with there is the clearance at the second side.

when the door leaf is arranged in the installation space, a gap exists between the door leaf and the frame body, and the flange part shields the gap.

According to a third aspect of the present application, there is provided a heat exchange system comprising the air conditioning box described above.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

through setting up the flange portion in the one end of main part for the flange portion can be covered and fit door leaf and door frame, perhaps in the clearance between the shell of door leaf and air conditioning box, thereby avoid the air in the air conditioning box to pass through direct and external intercommunication in clearance, avoid the leakage of air in the air conditioning box, thereby play and avoid phenomenons such as leaking out and heat leakage, promote the seal performance's of air conditioning box effect.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

FIG. 1 is a schematic cross-sectional view of a door leaf of a prior art design.

Fig. 2 is a schematic cross-sectional view of a door leaf according to an embodiment of the present application.

Fig. 3 is a schematic perspective view of a door leaf and an air conditioning box according to an embodiment of the present application.

Fig. 4 is a schematic cross-sectional view of a door leaf according to another embodiment of the present application.

Fig. 5 is an enlarged view of the area a in fig. 4.

Fig. 6 is another sectional view of a door leaf according to an embodiment of the present application.

Description of the reference numerals

Door leaf 10

Sheet metal part 100

Outer metal plate 110

The first accommodation space 113

Inner metal plate 120

Second accommodation space 123

Connecting piece 200

First end 201

Second end 202

Body portion 210

External connection part 211

Transition 213

Inner connection part 212

Flange part 220

Accommodating space 230

Frame body 20

Installation space 21

First side edge 22

Second side 23

Hinge member 30

Rotating shaft 31

Fixing plate 32

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It should be understood that the terms "first," "second," and the like as used in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

The embodiments of the present application will be described in detail below with reference to the accompanying drawings. The features of the following examples and embodiments may be combined with each other without conflict.

The application relates to a door leaf capable of being applied to an air conditioner box. As shown in fig. 2 and 3, the air conditioning box includes a housing provided with an opening, and a door 10 fixed to the housing and openably and closably provided on the opening of the housing, and a device for heat exchange provided in the housing. When a serviceman needs to perform maintenance and service on the equipment in the air conditioning box, the door 10 may be opened and the interior of the air conditioning box may be accessed through the opening of the casing. Of course, the door leaf 10 can be applied to other apparatuses.

In this embodiment, the door leaf 10 is directly connected to the casing of the air conditioner, the casing is provided with an opening, the frame body 20 is disposed around the opening, the frame body 20 is at least a part of the casing, the frame body 20 is provided with an installation space 21 for accommodating the door leaf 10, and the installation space 21 can be at least a part of the opening of the casing. The door leaf 10 is fixed on the frame body 20 and is arranged in the installation space 21 in a covering manner. Of course, in other embodiments, the door frame may be installed on the frame body of the housing, and then the door leaf 10 may be fixedly connected to the door frame. The design can directly utilize the original design on the shell, reduce the use of parts, simplify the installation steps and reduce the cost, and simultaneously can avoid the phenomena of air leakage or heat leakage and the like due to the further increase of the gap between the door frame and the frame body 20 of the shell.

The air conditioning box can be applied to heat exchange systems of large places such as factories, office buildings, markets, hotels and the like so as to carry out central heating or refrigeration on the large places.

As shown in fig. 4 to 6, the door leaf 10 includes a sheet metal member 100 and a connecting member 200.

The sheet metal part 100 includes an inner sheet metal 120 and an outer sheet metal 110 that are oppositely disposed. The connector 200 includes a ring-shaped main body 210 and a flange 220 extending outward along one end of the main body 210, the flange 220 having a ring shape. The main body 210 includes a first end 201 and a second end 202 along the axial direction, the first end 201 is connected to the outer metal plate 110, the second end 202 is connected to the inner metal plate 120, and the flange portion 220 is disposed at the first end 201.

In the above arrangement, the first end 201 of the main body 210 is provided with the flange part 220, and when the door leaf 10 is directly fixed to the housing, the flange part 220 can be covered in the gap between the door leaf 10 and the frame body 20 of the housing; when the door leaf 10 is fixed to the door frame, the flange part 220 can cover the gap between the door leaf 10 and the door frame, so as to prevent the air in the air-conditioning box from being directly communicated with the outside through the gap, thereby preventing the leakage of cold air in the air-conditioning box and improving the sealing performance of the air-conditioning box.

As shown in fig. 1, in the conventional design, the inner metal plate 120' of the door leaf 10' directly contacts with the outer metal plate 110', the inner metal plate 120' directly contacts with the air inside the air-conditioning box, the temperature of the inner metal plate is consistent with the temperature of the air inside the air-conditioning box, and the outer metal plate 110' directly contacts with the outside air. The inner metal plate 120 'and the outer metal plate 110' are in direct contact to form a cold bridge, and the temperature inside the air-conditioning box is transmitted to the outer metal plate 110 'and the outside through the inner metal plate 120'. In the process, because the temperature inside the air-conditioning box is low, heat is transferred to the outer metal plate 110' through the inner metal plate 120', condensation can be formed on the outer surface of the outer metal plate 110', and the heat exchange performance of the air-conditioning box is reduced.

As shown in fig. 4 to 6, in the present embodiment, the folded edges of the inner sheet metal 120 and the outer sheet metal 110 are embedded inside the connecting member 200, the inner sheet metal 120 and the outer sheet metal 110 are disposed at an interval, and at least a portion of the connecting member 200 is disposed between the inner sheet metal 120 and the outer sheet metal 110. The thermal conductivity of the material of the connector 200 is less than the thermal conductivity of the material of the inner and

outer sheet metal

120, 110. In the above arrangement, the connecting member 200 connects the inner metal plate 120 and the outer metal plate 110, and separates the inner metal plate 120 from the outer metal plate 110, thereby blocking a cold bridge between the inner metal plate 120 and the outer metal plate 110, preventing heat in the air-conditioning box from being transferred from the inner metal plate 120 to the outer metal plate 110, and improving the heat exchange performance of the air-conditioning box. Meanwhile, a foaming agent is filled between the inner metal plate 120 and the outer metal plate 110 to support the outer metal plate 110 and the inner metal plate 120, and the foaming agent can further prevent heat in the air-conditioning box from exchanging heat with external heat.

It should be noted that, the inner metal plate 120 and the outer metal plate 110 are arranged at intervals, and for the reason that the inner metal plate 120 is not connected with the outer metal plate 110, at least part of the connecting portion 200 is arranged between the two and separates the two.

In this embodiment, the connecting member 200 is made of plastic, and the thermal conductivity of the plastic is small, so that the phenomenon that heat is transferred from the inner metal plate 120 to the outer metal plate 110 can be reduced. Meanwhile, the connecting member 200 made of plastic can ensure sufficient rigidity to achieve effective connection of the inner metal plate 120 and the outer metal plate 110, thereby ensuring stable shape of the door leaf 10.

As shown in fig. 4 and 6, the dimension L2 of the second end 202 of the body portion 210 is less than the dimension L1 of the first end 201 of the body portion 210, and the dimension of the inner sheet metal 120 is less than the dimension of the outer sheet metal 110.

Referring to fig. 3 as necessary, in actual use, the door leaf 10 is connected through the hinge member 30, the hinge member 30 includes a rotating shaft 31 and two fixing plates 32, the two fixing plates 32 are respectively fixed on the outer metal plate 110 of the door leaf 10 and the frame body 20 of the outer shell, the two fixing plates 32 realize relative rotation through the rotating shaft 31, so as to realize rotation of the door leaf 10 relative to the outer shell, it can be known that, in the process of opening the door leaf 10, the operation of rotating the door leaf 10 around the rotating shaft 31 needs to be performed, the rotating radius of each position of the door leaf 10 is different, specifically, the length from the position to the rotating shaft 31, as shown in fig. 6, the rotating radius of the side of the inner metal plate 120 far away from the rotating shaft 31 is R2, the rotating radius of the side of the outer metal plate 110 far away from the rotating shaft 31 is R1, as the inner metal plate 120 is far away from the hinge member 30 relative to the outer metal plate 110, and the door leaf 10 has a certain thickness, the rotating radius of the inner metal plate 120 is larger than that of the rotating metal plate 120 of the outer metal plate 110 (i.e., R2 is larger than R1), the size of the main body portion 202 of the second end 202 is smaller than that of the second metal plate 36 of the inner metal plate 120, so that the inner metal plate 120 is smaller than the size of the size.

Further, as shown in fig. 4 and 6, the main body portion 210 includes an internal connection portion 212, a transition portion 213, and an external connection portion 211, and both ends of the transition portion 213 are connected to the internal connection portion 212 and the external connection portion 211, respectively. The external connection portion 211 is used for fixing the outer metal plate 110 and serves as the first end 201 of the door leaf 10. The inner connection portion 212 is used for fixing the inner metal plate 120 and serves as the second end 202. The transition 213 narrows in size in a direction from the first end 201 toward the second end 202.

In actual use, as shown in fig. 5, the inner sheet metal 120 and the outer sheet metal 110 are generally in a channel steel structure, and include a panel portion 111(121) and a flange 112(122) surrounding the panel portion 111(121), where the surface of the panel portion 111(121) is perpendicular to the surface of the flange 112 (122). The folded edge 122 of the inner metal plate 120 is fixed inside the inner connecting portion 212, and the folded edge 112 of the outer metal plate 110 is fixed inside the outer connecting portion 211. Since the included angle (90 degrees) formed between the panel portion 111(121) and the folded edge 112(122) cannot be changed, the size of the inner connecting portion 212 needs to be adapted to the size of the folded edge 122 of the inner metal plate 120, and the size of the outer connecting portion 211 needs to be adapted to the size of the folded edge 112 of the outer metal plate 110. Therefore, by setting the shape of the transition portion 213, the size of the inner connection portion 212 is smaller than that of the outer connection portion 211, and the connecting member 200 as a whole gradually narrows from the first end 201 to the second end 202, so that the connecting member 200 is better adapted to and fixes the inner metal plate 120 and the outer metal plate 110.

Further, the end surface of the external portion 211 is recessed inward to form a first accommodating space 113 for accommodating the outer metal plate 110, and the size of the first accommodating space 113 is gradually narrowed in a direction from the first end 201 to the second end 202. The end surface of the inner connecting portion 212 is recessed inwards to form a second accommodating space 123 for accommodating the inner metal plate 120, and the size of the second accommodating space 123 is gradually reduced in a direction from the second end 202 to the first end 201. Through the arrangement, the inner metal plate 120 can conveniently enter the second accommodating space 123 smoothly, so that the inner metal plate 120 can be fixed by the inner part 212; the outer metal plate 110 can conveniently enter the first accommodating space 113 smoothly, so that the outer metal plate 110 can be fixed by the external part 211.

Further, as shown in fig. 2, a hollow accommodating space 230 is provided inside the transition portion 213. By providing the hollow-out accommodating space 230, the weight of the connecting member 200 can be reduced, and material waste can be avoided. Meanwhile, the large change of the appearance of the connecting piece 200 caused by the shrinkage deformation of the connecting piece 200 in the shaping process can be avoided.

Further, as shown in fig. 6, the frame body 20 is provided with an installation space 21 for accommodating the door leaf 10, and the first end 201 of the connector 200 has a size smaller than that of the installation space 21. The frame body 20 includes a first side 22 and a second side 23 disposed opposite to each other, and the hinge member 30 connects the first side 22 and the door leaf 10. When the door leaf 10 rotates around the rotating shaft, the side edge of the inner metal plate 120 far away from the hinge member 30 always has a gap with the second side edge 23. Through the arrangement, the door leaf 10 with a certain thickness can not interfere with the frame body 20 in the rotating process relative to the frame body 20, and the smooth rotation of the door leaf 10 is ensured.

Further, in the above embodiments, in order to ensure smooth rotation of the door leaf 10, the size of the door leaf 10 is smaller than that of the frame body 20. When the door leaf 10 is disposed in the installation space 21, a large gap is formed between the door leaf 10 and the frame body 20. At this time, the flange part 220 on the door leaf 10 can block the gap, thereby preventing the heat in the air conditioner from leaking out while achieving smooth rotation between the door leaf 10 and the frame body 20.

Although the present application has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the application, and all changes, substitutions and alterations that fall within the spirit and scope of the application are to be understood as being covered by the following claims.

Claims

1. A door leaf for an air conditioning cabinet, the door leaf comprising:

2. The door leaf according to claim 1, wherein the folded edges of the inner metal plate and the outer metal plate are embedded in the connecting piece, the inner metal plate and the outer metal plate are arranged at intervals, and at least part of the connecting piece is arranged between the inner metal plate and the outer metal plate; the thermal conductivity of the material of the connecting piece is smaller than the thermal conductivity of the material of the inner metal plate and the material of the outer metal plate.

3. The door leaf of claim 1 wherein the second end of the body portion is smaller in size than the first end of the body portion, and the inner sheet metal is smaller in size than the outer sheet metal.

4. The door leaf of claim 3, wherein said main body portion includes an inner connecting portion, a transition portion and an outer connecting portion, two ends of said transition portion being connected to said inner connecting portion and said outer connecting portion, respectively;

5. The door leaf according to claim 4, wherein the end surface of the external connecting part is recessed inwards to form a first accommodating space for accommodating the external metal plate, and the size of the first accommodating space is gradually reduced along the direction from the first end to the second end; the end face of the inner connecting part is inwards recessed to form a second accommodating space for accommodating the inner metal plate, and the size of the second accommodating space is gradually reduced along the direction from the second end to the first end; and/or the presence of a gas in the gas,

the transition part is internally provided with a hollow accommodating space.

6. The door leaf as claimed in any one of claims 1 to 5, wherein the material of said connecting member is plastic.

7. An air conditioning box, characterized in that it comprises a casing and a door leaf according to any one of claims 1 to 6, said door leaf and said casing being connected by a hinge.

8. An air conditioning box as set forth in claim 7, characterized in that said housing is provided with a frame body provided with a mounting space for accommodating said door leaf, the first end of said connecting member having a size smaller than that of said mounting space;

9. An air conditioning box as set forth in claim 7, characterized in that said housing is provided with a frame body provided with a mounting space for accommodating said door leaf, the first end of said connecting member having a size smaller than that of said mounting space;

10. A heat exchange system, characterized in that it comprises an air conditioning cabinet according to any one of claims 7 to 9.