Integrated air conditioner variable frequency controller structure

By adopting a combination structure of backplane and mounting plate in the frequency converter, a 90-degree plug-in connection between the control board and the module is achieved, which solves the problems of heat dissipation and maintenance difficulties caused by the tangled wiring, and realizes effective heat dissipation and convenient maintenance.

CN224503750UActive Publication Date: 2026-07-14ZHUHAI WELLGO INVERTER TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHUHAI WELLGO INVERTER TECH CO LTD
Filing Date
2025-08-14
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In existing frequency converters, the PCB circuit board and functional modules are arranged in a straight line, resulting in a lot of wiring, which affects heat dissipation and makes maintenance difficult.

Method used

The installation mechanism is enclosed in a box, and the control board and module are connected at a 90-degree angle using a combination of back plate and mounting plate. This modular connection reduces cabling, enhances heat dissipation, and simplifies maintenance.

Benefits of technology

It achieves effective heat dissipation and convenient maintenance, reduces wiring and tracing operations, and improves the maintenance efficiency of frequency converters.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224503750U_ABST
    Figure CN224503750U_ABST
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Abstract

The utility model discloses an integrated air conditioner frequency conversion controller structure, including closed box, mounting mechanism and control unit, the bottom of closed box inner wall is provided with radiator, the mounting mechanism sets up in closed box, the mounting mechanism includes backplate and a plurality of installation clamping plate, a plurality of the bottom of installation clamping plate is detachably connected with the top of radiator, and one end of one installation clamping plate and the one end of backplate are provided with connecting structure, control unit is connected between backplate and a plurality of installation clamping plate. The utility model sets up the combination structure of backplate and installation clamping plate, then connects control panel at backplate, installs power module, compressor module and a plurality of fan module at installation clamping plate, can realize power module, compressor module and a plurality of fan module and control panel's modular connection like this, makes the effective heat dissipation, and maintenance operation is convenient.
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Description

Technical Field

[0001] This utility model relates to the field of frequency converters, and in particular to an integrated air conditioner frequency converter structure. Background Technology

[0002] The air conditioner inverter controller is the core electronic component of the air conditioning system (especially inverter air conditioners). Its main function is to precisely control the speed of the inverter compressor, thereby realizing continuous and stepless adjustment of the air conditioner's cooling / heating capacity.

[0003] To facilitate the maintenance of inverter controllers, current inverter controllers use a modular integrated connection for the PCB circuit board and various functional modules. Furthermore, to facilitate heat dissipation during operation, existing inverter controllers arrange the PCB board and functional modules in a linear layout. This requires cross-wiring when integrating the PCB board with the modules, resulting in a dense internal wiring structure. This wiring fills the gaps between modules, hindering heat dissipation and making maintenance difficult due to the need for tracing and disconnecting wires. Therefore, this solution proposes an integrated air conditioning inverter controller structure to address these problems. Utility Model Content

[0004] The purpose of this utility model is to provide an integrated air conditioner inverter controller structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integrated air conditioner inverter controller structure, comprising:

[0006] A closed box, wherein a heat sink is provided at the bottom of the inner wall of the closed box;

[0007] The mounting mechanism is housed within a closed box. The mounting mechanism includes a back plate and multiple mounting plates. The bottoms of the multiple mounting plates are detachably connected to the top of the heat sink. One end of one of the mounting plates is connected to one end of the back plate.

[0008] A control unit, connected between a back panel and multiple mounting plates, includes:

[0009] A control board, which is detachably connected to the back panel on the side near the mounting plate;

[0010] A power module is detachably connected to the middle of one of the mounting plates, and the output terminal of the power module is electrically connected to the power terminal of the control board.

[0011] Preferably, the closed box is provided with fixing plates on both sides, and hanging ears are provided between multiple fixing plates on the same side.

[0012] Preferably, the control unit further includes a compressor module and multiple fan modules. The compressor module and multiple fan modules are detachably connected to the middle of multiple other mounting plates. The control terminals of the compressor module and multiple fan modules are electrically connected to the output terminals of the control board. The control board, power module, compressor module and multiple fan modules are all cooled by heat conduction from the bottom heat sink.

[0013] Preferably, the enclosure covers the outer wall of the control board, power module, compressor module and multiple fan modules, and the charging terminal of the power module, the output terminal of the compressor module and the output terminals of the multiple fan modules are all exposed through the side wall of the enclosure.

[0014] Preferably, a side baffle is provided on one side of the plurality of mounting plates and at the top of the radiator, the side baffle being used to cooperate with the plurality of mounting plates to form a plurality of mounting intervals.

[0015] Preferably, a support strip is provided on the side of the back plate away from the mounting plate, and the support strip is used to press the back plate tightly against the inner wall of the enclosed box.

[0016] Preferably, the connection structure includes:

[0017] A mating slot is provided at the end of the back plate;

[0018] A docking rod is fixedly connected to the top of one of the mounting plates, and the end of the docking rod away from the mounting plate is inserted into the docking slot.

[0019] Preferably, a limiting insertion hole is provided on the inner wall of the bottom end of the docking slot, and a limiting insertion rod is fixedly connected to the bottom end of the docking rod, with the limiting insertion rod interlocking with the limiting insertion hole.

[0020] The technical effects and advantages of this utility model are as follows:

[0021] This invention employs a combination structure of a backplate and a mounting plate during control unit installation. The backplate and mounting plate are assembled using a connecting structure, and then the mounting plate is connected to the heat sink, forming a 90-degree connection angle between them. The control board is then connected to the backplate, and the power module, compressor module, and multiple fan modules are installed on the mounting plate. These modules can be inserted into the control board at a 90-degree angle, enabling modular connection between them. This eliminates the need for cabling between the power module, compressor module, and fan modules, resulting in more effective heat dissipation and avoiding the need for wiring checks during maintenance. This makes maintenance of the power module, compressor module, and fan modules much more convenient. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the overall structure of the present invention without the sealing box.

[0024] Figure 3 This is a schematic diagram showing the structural connection of the radiator, back plate, and multiple mounting plates of this utility model.

[0025] Figure 4 This is a schematic diagram of the structure of the back plate of this utility model.

[0026] Figure 5 This is a top view of the structure of the back plate of this utility model.

[0027] Figure 6 This is a schematic diagram of the mounting plate of this utility model.

[0028] In the diagram: 1. Enclosed box; 101. Fixing plate; 102. Hanging ear; 2. Heat sink; 3. Back plate; 301. Connecting slot; 302. Restricting insertion hole; 303. Support bar; 4. Control board; 5. Power module; 6. Compressor module; 7. Fan module; 8. Mounting plate; 801. Connecting rod; 802. Restricting rod; 9. Side baffle. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] This utility model provides, for example Figure 1-6 The integrated air conditioner inverter controller structure shown includes a sealed box 1, a mounting mechanism, and a control unit;

[0031] A radiator 2 is provided at the bottom of the inner wall of the enclosed box 1. Fixing plates 101 are provided on both sides of the enclosed box 1, and hanging ears 102 are provided between multiple fixing plates 101 on the same side.

[0032] It should be noted that the enclosed box 1 is composed of a top box and a bottom cover. The heat sink 2 is located inside the bottom cover and is protected by the bottom cover. In this design, the fixing plate 101 adopts an L-shaped plate structure. One end of the fixing plate 101 is fixedly connected to the bottom of the enclosed box 1, and the other end of the fixing plate 101 is used for the installation connection when the entire controller is in use. The mounting ears 102 not only facilitate the placement and removal of the entire controller, but also assist the controller structure in mounting and connecting.

[0033] The mounting mechanism is located inside the enclosed box 1. The mounting mechanism includes a back plate 3 and multiple mounting plates 8. The bottom of the multiple mounting plates 8 is detachably connected to the top of the heat sink 2. One end of one of the mounting plates 8 is connected to one end of the back plate 3. A side baffle 9 is provided on one side of the multiple mounting plates 8 and at the top of the heat sink 2. The side baffle 9 is used to cooperate with the multiple mounting plates 8 to form multiple mounting intervals.

[0034] It should be noted that multiple mounting plates 8 are arranged horizontally at the top of the radiator 2, and their bottoms are provided with L-shaped ends. Through these L-shaped ends, the mounting plates 8 can be detachably connected to the radiator 2 using a bolt structure. After multiple mounting plates 8 are arranged, they are combined with side baffles 9 to surround multiple installation intervals at the separation point, thereby facilitating modular layout design.

[0035] Specifically, a support strip 303 is provided on the side of the back plate 3 away from the mounting plate 8. The support strip 303 is used to press the back plate 3 tightly against the inner wall of the closure box 1. The support strip 303 is composed of an arc-shaped flexible board structure. Its curved structure and the material itself give it the ability to deform elastically. The support strip 303 fills the gap between the closure box 1 and the back plate 3. In this way, one side of the back plate 3 is supported by the mounting plate 8, and the other side is supported by the closure box 1 after the extension of the support strip 303. With this structural setting, the back plate 3 can be kept in a vertical position.

[0036] Specifically, the connection structure includes:

[0037] The mating slot 301 is located at the end of the back plate 3;

[0038] The mating rod 801 is fixedly connected to the top of one of the mounting plates 8, and the end of the mating rod 801 away from the mounting plate 8 is inserted into the mating slot 301.

[0039] Furthermore, a limiting insertion hole 302 is provided on the inner wall of the bottom end of the docking slot 301, and a limiting insertion rod 802 is fixedly connected to the bottom end of the docking rod 801. The limiting insertion rod 802 is inserted and connected to the limiting insertion hole 302.

[0040] It should be noted that when installing the backplate 3, the docking slot 301 of the backplate 3 is first inserted into the docking rod 801. At this time, the position of the backplate 3 is maintained, and the limiting rod 802 is aligned with the limiting hole 302 before the mounting plate 8 is inserted from top to bottom. Then, the mounting plate 8 is connected and fixed to the heat sink 2 by bolts. With this structure, the backplate 3 can be installed and restricted.

[0041] The control unit is connected between the back panel 3 and multiple mounting plates 8. The control unit includes:

[0042] Control board 4 is detachably connected to the back plate 3 on the side near the mounting plate 8;

[0043] Power module 5 is detachably connected to the middle of one of the mounting plates 8, and the output terminal of power module 5 is electrically connected to the power terminal of control board 4.

[0044] Specifically, the control unit also includes a compressor module 6 and multiple fan modules 7. The compressor module 6 and multiple fan modules 7 are detachably connected to the middle of multiple mounting plates 8. The control terminals of the compressor module 6 and multiple fan modules 7 are electrically connected to the output terminals of the control board 4. The control board 4, power module 5, compressor module 6 and multiple fan modules 7 are all cooled by heat conduction from the bottom heat sink 2. The enclosed box 1 covers the outer wall of the control board 4, power module 5, compressor module 6 and multiple fan modules 7, and the charging terminal of the power module 5, the output terminal of the compressor module 6 and the output terminals of the multiple fan modules 7 are all exposed through the side wall of the enclosed box 1.

[0045] It should be noted that, firstly, the control board 4 is installed on the back plate 3 near the mounting plate 8 using a bolt structure. Then, the output terminal of the power module 5 is electrically connected to the power terminal of the control board 4, and the control terminals of the compressor module 6 and multiple fan modules 7 are connected to the output terminal of the control board 4 through terminal blocks. The power module 5, compressor module 6, and multiple fan modules 7 are located in multiple installation intervals, thus forming a modular installation. In this way, the power module 5, compressor module 6, and multiple fan modules 7 are located in corresponding installation intervals for separated heat dissipation. This method also facilitates troubleshooting of corresponding module faults, making it easier for the controller to be maintained.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. An integrated air conditioner inverter controller structure, characterized in that, include: A closed box (1) is provided with a heat sink (2) at the bottom of the inner wall of the closed box (1); The mounting mechanism is set inside the closed box (1). The mounting mechanism includes a back plate (3) and multiple mounting plates (8). The bottom of the multiple mounting plates (8) is detachably connected to the top of the heat sink (2). One end of one of the mounting plates (8) is provided with a connection structure to one end of the back plate (3). A control unit, connected between a backplate (3) and a plurality of mounting plates (8), the control unit comprising: Control board (4), which is detachably connected to the back plate (3) on the side near the mounting plate (8); The power module (5) is detachably connected to the middle of one of the mounting plates (8), and the output end of the power module (5) is electrically connected to the power supply end of the control board (4).

2. The integrated air conditioner inverter controller structure according to claim 1, characterized in that, The closed box (1) is provided with fixing plates (101) on both sides, and hanging ears (102) are provided between multiple fixing plates (101) on the same side.

3. The integrated air conditioner inverter controller structure according to claim 1, characterized in that, The control unit also includes a compressor module (6) and multiple fan modules (7). The compressor module (6) and multiple fan modules (7) are detachably connected to the middle of multiple mounting plates (8). The control terminals of the compressor module (6) and multiple fan modules (7) are electrically connected to the output terminals of the control board (4). The control board (4), power module (5), compressor module (6) and multiple fan modules (7) are all cooled by heat conduction from the bottom heat sink (2).

4. The integrated air conditioner inverter controller structure according to claim 3, characterized in that, The enclosed box (1) covers the outer wall of the control board (4), power module (5), compressor module (6) and multiple fan modules (7), and the charging end of the power module (5), the output end of the compressor module (6) and the output ends of the multiple fan modules (7) all penetrate through and are exposed on the side wall of the enclosed box (1).

5. The integrated air conditioner inverter controller structure according to claim 1, characterized in that, A side baffle (9) is provided on one side of the plurality of mounting plates (8) and at the top of the radiator (2), the side baffle (9) being used to cooperate with the plurality of mounting plates (8) to form a plurality of mounting intervals.

6. The integrated air conditioner inverter controller structure according to claim 1, characterized in that, A support strip (303) is provided on the side of the back plate (3) away from the mounting plate (8). The support strip (303) is used to press the back plate (3) tightly against the inner wall of the closed box (1).

7. The integrated air conditioner inverter controller structure according to claim 1, characterized in that, The connection structure includes: A docking slot (301) is provided at the end of the back plate (3); A docking rod (801) is fixedly connected to the top of one of the mounting plates (8), and the end of the docking rod (801) away from the mounting plate (8) is inserted into the docking slot (301).

8. The integrated air conditioner inverter controller structure according to claim 7, characterized in that, The inner wall of the bottom end of the docking slot (301) is provided with a limiting insertion hole (302), and the bottom end of the docking rod (801) is fixedly connected with a limiting insertion rod (802), and the limiting insertion rod (802) is inserted and connected to the limiting insertion hole (302).