Window air conditioner heat dissipation module fixing structure and window type air conditioner

Abstract

The utility model relates to a window air conditioner heat dissipation module fixing structure and a window air conditioner, and the fixing structure comprises a heat dissipation piece which is fixed in a cover body and is used for carrying out heat exchange with a heating element on a PCB (Printed Circuit Board); the PCB is arranged between the heat dissipation piece and the cover body; the heat dissipation bracket is fixed in the box body and is provided with a clamping groove for accommodating the heat dissipation copper pipe; and the heat dissipation copper pipe is clamped in the clamping groove of the heat dissipation bracket and is in contact with the heat dissipation piece. According to the window type air conditioner heat dissipation module fixing structure and the window type air conditioner, a part of assemblies are assembled in the box body in advance, another part of assemblies are assembled in the cover body in advance, then the two parts of assemblies are connected in a fastened mode through the fixing holes penetrating through the cover body, the heat dissipation piece and the heat dissipation support and by means of the fasteners, and therefore a compact and stable whole is formed.

Description

Technical Field

[0001] This utility model relates to the field of window air conditioning technology, and in particular to a window air conditioner heat dissipation module fixing structure and a window air conditioner. Background Technology

[0002] With the improvement of people's living standards, window air conditioners, as a convenient and economical refrigeration device, are widely used in homes and offices. Window units typically include a refrigeration system and an electronic control system. The electronic control system is responsible for controlling the operation of components such as the compressor and fan, while the refrigeration system is responsible for realizing the cooling function.

[0003] The electrical control box is the core component of the window air conditioner's electrical control system, integrating electronic components such as PCB boards, controllers, and drivers. During window air conditioner operation, these electronic components generate a significant amount of heat. If this heat cannot be dissipated effectively and promptly, it will cause the electronic components to overheat, degrade in performance, or even be damaged, severely impacting the reliability and lifespan of the window air conditioner. Utility Model Content

[0004] To address the aforementioned issues, this utility model provides a window air conditioner with a window unit heat dissipation module fixing structure and a window air conditioner that achieves efficient heat dissipation, reliable sealing, and simplified assembly through a modular pre-assembly and multi-layer component integrated fastening design.

[0005] To achieve the above objectives, in a first aspect, embodiments of this application provide a window unit heat dissipation module fixing structure, applied within an electrical control box. The electrical control box includes a box body, a cover, and a PCB board, comprising:

[0006] A heat sink is fixed inside the cover body for heat exchange with the heat-generating components on the PCB board; the PCB board is disposed between the heat sink and the cover body.

[0007] A heat dissipation bracket is fixed inside the box and has a slot for accommodating the heat dissipation copper pipe.

[0008] The heat dissipation copper pipe is fitted into the slot of the heat dissipation bracket and contacts the heat dissipation component;

[0009] The cover has a fixing hole, the wall of which extends to form a hollow fixing post, which passes through the heat sink and the heat sink bracket. The cover is connected to the box body through the fixing hole by a fastener, so that the heat sink copper tube is pressed between the heat sink and the heat sink bracket.

[0010] Preferably, the PCB board has a positioning hole adapted to the fixing post, and one end of the fixing post passes through the positioning hole and abuts against the side of the heat sink facing the PCB board.

[0011] Preferably, the fixing hole is a stepped hole, including a large-diameter hole and a small-diameter hole connected together, the diameter of the large-diameter hole is larger than the diameter of the small-diameter hole, the fastener is a screw screwed to the box body, and the screw nut is received in the large-diameter hole.

[0012] Preferably, a stud is integrally formed inside the cover body, and the heat dissipation component is threadedly connected to the stud by screws to fix it inside the cover body.

[0013] Preferably, it further includes a chip bracket, the height of which is greater than the height of the chip components on the PCB board, and the chip bracket is pressed onto the PCB board by the heat sink to separate the heat sink from the PCB board.

[0014] Preferably, the cover, PCB board, chip bracket and heat sink are pre-assembled into a first module.

[0015] Preferably, the housing, heat dissipation bracket, and heat dissipation copper pipe are pre-assembled into a second module.

[0016] Preferably, the heat dissipation bracket has a protruding positioning post on the side facing the heat dissipation component, and the heat dissipation component has a recessed positioning hole on the side facing the heat dissipation bracket that matches the positioning post; the cooperation between the positioning post and the positioning hole restricts the relative position between the heat dissipation bracket and the heat dissipation component.

[0017] Preferably, the fixing post is provided with an annular boss around its periphery, and the platform of the annular boss abuts against the side of the PCB board away from the heat sink, so that a gap is formed between the PCB board and the cover.

[0018] Secondly, embodiments of this application provide a window air conditioner, including the window unit heat dissipation module fixing structure described in any embodiment of the first aspect.

[0019] This utility model discloses a window air conditioner with a heat dissipation module fixing structure. By pre-assembling some components to the housing and others to the cover, and then using fixing holes penetrating the cover, heat sink, and heat sink bracket, the two parts of the components are securely connected with fasteners, forming a compact and stable whole. This not only achieves integrated fixing of multi-layer components, simplifying the assembly process and significantly improving production efficiency, but also effectively utilizes the pressure of the fasteners to firmly press the heat dissipation copper pipe between the heat sink and the heat sink bracket, ensuring good heat conduction and thus improving heat dissipation efficiency. Furthermore, this fixing structure utilizes the locking force of the fasteners to achieve a stable connection of the components while ensuring good sealing of the electrical control box. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the structure of the electrical control box provided in the embodiment of this application.

[0021] Figure 2 yes Figure 1 3D exploded view.

[0022] Figure 3 This is an assembly diagram of the heat sink provided in the embodiments of this application.

[0023] Figure 4 yes Figure 1 Top view.

[0024] Figure 5 yes Figure 4 Cross-sectional perspective view at point AA.

[0025] The components include: box body 100, cover body 200, PCB board 300, heat sink 10, heat sink bracket 20, card slot 21, positioning post 22, heat sink copper pipe 30, fixing hole 40, fixing post 50, annular boss 51, stud 60, and chip bracket 70. Detailed Implementation

[0026] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0027] Firstly, such as Figures 1 to 5 As shown in the figure, this application embodiment provides a window air conditioner heat dissipation module fixing structure, which is applied in the electrical control box. The electrical control box includes a box body 100, a cover 200 and a PCB board 300. The fixing structure mainly includes a heat dissipation component 10, a heat dissipation bracket 20 and a heat dissipation copper pipe 30.

[0028] The heat sink 10 is made of a thermally conductive material, preferably an aluminum ingot in this embodiment. It is fixed inside the cover 200 and is used to exchange heat with the heat-generating elements on the PCB board 300 to dissipate heat. To achieve good heat exchange, the heat sink 10 is made of a material with excellent thermal conductivity. In this embodiment, aluminum ingot is preferred, but other thermally conductive materials such as copper can also be selected. The heat sink 10 is fixed inside the cover 200 by means of screws, clips, or other suitable fixing methods, and maintains a certain gap with the PCB board 300 to avoid direct pressure on the PCB board 300.

[0029] Specifically, such as Figure 3 As shown, a stud 60 is integrally formed inside the cover 200, and the heat sink 10 is threadedly connected to the stud 60 by screws to fix it inside the cover 200.

[0030] In this embodiment, the PCB board 300 is located between the heat sink 10 and the cover 200, and is used to support various electronic components in the control box. During operation, the electronic components on the PCB board 300 generate heat. This heat is transferred to the heat sink 10 through heat exchange, thereby achieving heat dissipation.

[0031] The heat dissipation bracket 20 is fixed inside the housing 100 and has a slot 21 for accommodating the heat dissipation copper pipe 30. The shape and number of slots 21 can be designed according to actual needs. In this embodiment, the slots 21 are U-shaped, such as... Figure 2 As shown, this facilitates the installation and fixation of the heat dissipation copper pipe 30. The heat dissipation copper pipe 30 is a U-shaped copper pipe, which is clamped in the slot 21 of the heat dissipation bracket 20 and contacts the heat dissipation component 10 to ensure good heat conduction.

[0032] The cover 200 is provided with a fixing hole 40. The wall of the fixing hole 40 extends to form a hollow fixing post 50. The fixing post 50 passes through the heat sink 10 and the heat sink bracket 20. The cover 200 is connected to the box 100 by a fastener, such as a screw, passing through the fixing hole 40, so that the heat sink copper pipe 30 is pressed between the heat sink 10 and the heat sink bracket 20. In this embodiment, the fixing hole 40 is a stepped hole, including a large-diameter hole and a small-diameter hole connected together. The diameter of the large-diameter hole is larger than that of the small-diameter hole. The fastener is a screw that is screwed to the box body 100. The screw nut is received in the large-diameter hole and passes through the fixing hole 40 to be threaded to the corresponding hole of the box body 100, so as to connect the cover 200, heat sink 10, PCB board 300, heat sink bracket 20 and heat sink copper pipe 30 into one unit. This multi-layer pressing structure not only ensures the tight contact between the heat sink copper pipe 30 and the heat sink 10, thereby achieving efficient heat conduction, but also effectively simplifies the assembly process. At the same time, the clamping force of the fastener achieves the sealing of the electrical control box.

[0033] In some embodiments, such as Figure 3 , Figure 5 As shown, the PCB board 300 has positioning holes adapted to the fixing post 50. The fixing post 50 cooperates with the positioning holes on the PCB board 300 to precisely define the position of the PCB board 300 within the cover 200. One end of the fixing post 50 passes through the positioning hole and abuts against the side of the heat sink 10 facing the PCB board 300. This provides physical support for the position of the heat sink 10, preventing the heat sink 10 from excessively encroaching on the location of the PCB board 300 after it is fixed, thus protecting the electronic components on the PCB board 300. In this embodiment, the fixing post 50 is a hollow structure integrally formed with the cover 200, that is, the fixing hole 40 passes through the hollow part of the fixing post 50, which is equivalent to combining the channel of the fixing post 50 and the fastener into one, simplifying the modular design of the fixing structure, saving space in the control box, and making the entire heat dissipation module more compact.

[0034] In some embodiments, such as Figure 3 , Figure 5 As shown, the system also includes a chip holder 70, the height of which is greater than the height of the chip components on the PCB board 300. The chip holder 70 is pressed onto the PCB board 300 by the heat sink 10 to separate the heat sink 10 from the PCB board 300. The chip holder 70 can serve as a positioning and support component, simplifying the assembly process. For example, during assembly, the chip holder 70 can be placed on the PCB board 300 first, and then the heat sink 10 can be pressed onto the chip holder 70. This ensures that the gap between the heat sink 10 and the PCB board 300 is fixed, avoiding an excessively large or small gap, and protecting the chip components on the PCB board 300 from physical damage.

[0035] In some embodiments, such as Figure 2 As shown, the cover 200, PCB board 300, chip bracket 70, and heat sink 10 are pre-assembled into a first module; the box 100, heat sink bracket 20, and heat sink copper pipe 30 are pre-assembled into a second module. In this way, during the assembly process, multiple components are pre-assembled into the first and second modules, and then fasteners are passed through the fixing holes 40 on the cover 200 and connected to the box 100, combining the two modules into a complete electronic control box heat dissipation module. At this point, the relative positions of each component are determined, thus reducing the risk of product quality problems due to assembly errors.

[0036] In some embodiments, such as Figure 5 As shown, the heat sink bracket 20 has a protruding positioning post 22 on the side facing the heat sink 10, and the heat sink 10 has a recessed positioning hole on the side facing the heat sink bracket 20 that matches the positioning post 22. The cooperation between the positioning post 22 and the positioning hole restricts the relative position between the heat sink bracket 20 and the heat sink 10. The cooperation between the positioning post 22 and the positioning hole can achieve precise alignment between the heat sink bracket 20 and the heat sink 10, ensuring that their relative positions are fixed after assembly. This avoids uneven pressure on the heat sink copper pipe 30, which may lead to deformation or damage, or make assembly difficult or even impossible.

[0037] In some embodiments, such as Figure 3 , Figure 5 As shown, the fixing post 50 has an annular boss 51 around its periphery. The platform of the annular boss 51 rests against the side of the PCB board 300 away from the heat sink 10, so that a gap is formed between the PCB board 300 and the cover 200. The gap can improve the heat dissipation conditions of the PCB board 300, and can provide a certain buffering effect when subjected to external impact or vibration, reducing damage to the components on the PCB board 300.

[0038] Secondly, embodiments of this application provide a window air conditioner, including a window unit heat dissipation module fixing structure according to any embodiment of the first aspect. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the window air conditioner described above can be referred to the corresponding process in the foregoing embodiments of the window unit heat dissipation module fixing structure, and will not be repeated here.

[0039] The window air conditioner and its heat dissipation module fixing structure provided in this embodiment pre-assemble some components into the housing and others into the cover. Then, using fixing holes penetrating the cover, heat sink, and heat dissipation bracket, fasteners are used to securely connect the two parts of the components, forming a compact and stable whole. This not only achieves integrated fixing of multi-layer components, simplifying the assembly process and significantly improving production efficiency, but also effectively utilizes the pressure of the fasteners to firmly press the heat dissipation copper pipe between the heat sink and the heat dissipation bracket, ensuring good heat conduction and thus improving heat dissipation efficiency. Furthermore, this fixing structure utilizes the locking force of the fasteners to achieve a stable connection of the components while ensuring good sealing of the electrical control box.

[0040] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A window air conditioner heat dissipation module fixing structure, applied inside an electrical control box, the electrical control box comprising a box body, a cover body, and a PCB board, characterized in that, include: A heat sink is fixed inside the cover and is used to exchange heat with the heat-generating components on the PCB board. The PCB board is disposed between the heat sink and the cover; A heat dissipation bracket is fixed inside the box and has a slot for accommodating the heat dissipation copper pipe. The heat dissipation copper pipe is fitted into the slot of the heat dissipation bracket and contacts the heat dissipation component; The cover has a fixing hole, the wall of which extends to form a hollow fixing post, which passes through the heat sink and the heat sink bracket. The cover is connected to the box body through the fixing hole by a fastener, so that the heat sink copper tube is pressed between the heat sink and the heat sink bracket.

2. The window unit heat dissipation module fixing structure according to claim 1, characterized in that, The PCB board has a positioning hole that matches the fixing post. One end of the fixing post passes through the positioning hole and abuts against the side of the heat sink facing the PCB board.

3. The window unit heat dissipation module fixing structure according to claim 2, characterized in that, The fixing hole is a stepped hole, including a large-diameter hole and a small-diameter hole connected together. The diameter of the large-diameter hole is larger than the diameter of the small-diameter hole. The fastener is a screw screwed to the box body, and the screw nut is received in the large-diameter hole.

4. The window unit heat dissipation module fixing structure according to claim 1, characterized in that, The cover body has an integrally formed stud, and the heat dissipation component is fixed to the cover body by screws threadedly connected to the stud.

5. The window unit heat dissipation module fixing structure according to claim 1, characterized in that, It also includes a chip bracket, the height of which is greater than the height of the chip components on the PCB board, and the chip bracket is pressed onto the PCB board by the heat sink to separate the heat sink from the PCB board.

6. The window unit heat dissipation module fixing structure according to claim 5, characterized in that, The cover, PCB board, chip bracket and heat sink are pre-assembled into the first module.

7. The window unit heat dissipation module fixing structure according to claim 6, characterized in that, The box, heat dissipation bracket, and heat dissipation copper pipe are pre-assembled into a second module.

8. The window unit heat dissipation module fixing structure according to claim 1, characterized in that, The heat dissipation bracket has a protruding positioning post on the side facing the heat dissipation component, and the heat dissipation component has a recessed positioning hole on the side facing the heat dissipation bracket that matches the positioning post; the cooperation between the positioning post and the positioning hole restricts the relative position between the heat dissipation bracket and the heat dissipation component.

9. The window unit heat dissipation module fixing structure according to claim 2, characterized in that, The fixing column is provided with an annular boss around its periphery. The platform of the annular boss abuts against the side of the PCB board away from the heat sink, so that a gap is formed between the PCB board and the cover.

10. A window air conditioner, characterized in that, Includes the window unit heat dissipation module fixing structure according to any one of claims 1-9.

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