WO2020181571A1

WO2020181571A1 - Air conditioner controller

Info

Publication number: WO2020181571A1
Application number: PCT/CN2019/078867
Authority: WO
Inventors: 曹成; 陈上康
Original assignee: 珠海市伟高变频科技有限公司
Priority date: 2019-03-14
Filing date: 2019-03-20
Publication date: 2020-09-17
Also published as: CN209910120U

Abstract

An air conditioner controller, comprising a bottom housing (1), and a control circuit board (2) and an upper cover (3) provided on the bottom housing (1). An inner cavity of the upper cover (3) can accommodate all or some of electronic element devices (21) on the control circuit board (2). A cooling pipe (5) is provided above one side of the control circuit board (2). A refrigerant can be introduced to the cooling pipe (5).

Description

An air conditioner controller

Technical field

The utility model relates to the technical field of air conditioners, in particular to an air conditioner controller.

Background technique

Nowadays, the use of air conditioners is becoming more and more common, and the air conditioner is usually controlled by a controller. A variety of electronic components are arranged in the controller, especially on the control circuit board (PCBA board). Electronic components, especially power devices on control circuit boards, such as power transistors used to drive compressors, generate heat when they are running. The role of the radiator is to dissipate the generated heat to the outside of the controller, thereby avoiding overheating inside the controller. The existing method is to install a heat sink type radiator on one side of the controller. This heat dissipation method can meet most environmental conditions, but when the ambient temperature is extremely high, this method cannot disperse the electronic controller. The generated heat, excessive heat will affect or even damage the components in the electronic controller, and then affect the use of the air conditioner.

Utility model content

In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides an air conditioner controller, which has fast heat dissipation and good heat dissipation effect.

The technical solutions adopted by the utility model to solve its technical problems are:

An air conditioner controller includes a bottom shell, a control circuit board and an upper cover arranged on the bottom shell, the inner cavity of the upper cover can accommodate all or part of the electronic components on the control circuit board, and one part of the control circuit board A cooling pipe is arranged on the upper side of the side, and refrigerant can be passed through the cooling pipe.

As an improvement of the above technical solution, a heat sink is further provided above one side of the control circuit board, and the cooling tube is embedded in the heat sink.

As an improvement of the above technical solution, a groove is provided on the heat sink, and the cooling tube is placed in the groove.

As an improvement of the above technical solution, the radiating fin is provided with two fins, the two radiating fins are arranged up and down, the cooling tube is arranged between the two radiating fins, and the groove is arranged on the end surface of the radiating fin close to the cooling tube, The positions of the grooves on the two heat sinks correspond to each other.

As an improvement of the above technical solution, the radiating fin and the cooling tube are both arranged between the control circuit board and the upper cover.

As an improvement of the above technical solution, the multiple power devices on the control circuit board are all arranged on one side of the control circuit board, and the cooling pipe is arranged above the power devices.

As an improvement of the above technical solution, a support frame is provided between the control circuit board and the heat sink, and the support frame can support the heat sink.

As an improvement of the above technical solution, a plurality of buckles are provided on adjacent two sides of the inside of the bottom shell, and a fixed block is provided on the other side or both sides. The cooperation of the buckle and the fixed block can limit the movement of the control circuit board .

As an improvement of the above technical solution, the buckle includes a horizontal limit block and a vertical limit block arranged on the horizontal limit block, the horizontal limit block is arranged on the outside of the control circuit board, and the vertical limit block The block faces the control circuit board.

As an improvement of the above technical solution, two opposite sides of the upper cover are provided with a plurality of protrusions, and the corresponding two sides of the bottom shell are provided with a plurality of clamping parts, and the clamping parts can clamp the protrusions.

The beneficial effects of the utility model are:

A cooling pipe is arranged above one side of the control circuit board in the air conditioning controller. When the air conditioner is running, there is a refrigerant circulating in the cooling pipe. This refrigerant can be a low-temperature refrigerant in the air conditioning system. The tube is always in a low temperature state, which can take away more heat emitted by electronic components, so it has a better heat dissipation effect than a heat sink type radiator, can better ensure the normal operation of the controller, and the structure is also very simple. Moreover, the controller is installed on the air conditioner upside down, that is, in the installed state, the control circuit board is on the top and the cooling pipe is on the bottom. If there are water drops on the cooling pipe, the water drops will not flow to the control circuit board and will not affect Use of electronic components.

Description of the drawings

The following is a further description of the utility model with reference to the drawings and specific embodiments, in which:

Figure 1 is a schematic structural diagram of an embodiment of the present utility model;

Figure 2 is an exploded schematic diagram of an embodiment of the present utility model;

Figure 3 is a schematic view of the structure of the bottom shell in the embodiment of the utility model;

Fig. 4 is a partial enlarged view of A in Fig. 3.

detailed description

Referring to Figure 1, an air conditioner controller of the present invention includes a bottom shell 1 and a control circuit board 2 and an upper cover 3 arranged on the bottom shell 1. The inner cavity of the upper cover 3 can accommodate the control circuit board 2 For all or part of the electronic components 21, a cooling pipe 5 is provided above one side of the control circuit board 2, and the cooling pipe 5 can pass a refrigerant.

When the air conditioner is running, there is a refrigerant circulating in the cooling pipe 5. This refrigerant can be a low temperature refrigerant in the air conditioning system. As the refrigerant is flowing, the cooling pipe 5 is always in a low temperature state, which can take away more electronic components 21 and distribute Therefore, the heat dissipation effect is better than the heat sink type radiator, which can better ensure the normal operation of the controller, and the structure is also very simple. Moreover, the controller is installed upside down on the air conditioner, that is, in the installed state, the control circuit board 2 is on the top, and the cooling pipe 5 is on the bottom. If there are condensation on the cooling pipe 5, the water droplets will not flow to the control circuit board 2. , Will not affect the use of electronic components 21.

In this embodiment, the inner cavity of the upper cover 3 can accommodate part of the electronic components 21 on the control circuit board 2, that is, one end of the upper cover 3 is closed and the other end is open, which can increase heat dissipation and reduce cost.

Further referring to FIG. 2, a heat sink 4 is further provided above one side of the control circuit board 2, and the cooling tube 5 is embedded in the heat sink 4. Specifically, a groove 41 is provided on the heat sink 4, and the cooling tube 5 is placed in the groove 41.

In this embodiment, the radiating fin 4 is provided with two fins, the two radiating fins 4 are arranged up and down, the cooling tube 5 is arranged between the two radiating fins 4, and the groove 41 is arranged on the radiating fin 4 close to the cooling On the end surface of the tube 5, the positions of the grooves 41 on the two radiating fins 4 correspond to each other. The heat sink 4 and the cooling pipe 5 are both arranged between the control circuit board 2 and the upper cover 3.

In this way, the cooling pipe 5 is surrounded by two heat sinks 4, the contact area between the cooling pipe 5 and the heat sink 4 is large, heat conduction is fast, and the cooling pipe 5 is not exposed to the air, the surface is not easy to condense water drops, and will not affect the electronic components. Use of device 21.

Specifically, the multiple power devices 22 on the control circuit board 2 are all arranged on one side of the control circuit board 2, and the heat sink 4 and the cooling tube 5 are all arranged above the power devices 22. Since the power device 22 is the main heating element, the power device 22 is closest to the heat sink 4 and the cooling tube 5, which can quickly take away the heat emitted by the power device 22, and the heat dissipation effect is better, and the heat is prevented from affecting the use of the entire controller. .

In order to facilitate the installation of the heat sink 4, a support frame 6 is provided between the control circuit board 2 and the heat sink 4, and the support frame 6 can support the heat sink 4. The support frame 6 is provided with grooves and through holes. The shape of the groove corresponds to the shape of the electronic components 21 on one side of the control circuit board 2. The through holes are used to install screws. The support frame 6 can fix the electronic components here. 21 height. There are several coplanar fulcrums on the upper surface of the support frame 6, which are used to support the heat sink 4 so that the heat sink 4 is parallel to the control circuit board 2, which facilitates the placement and positioning of the heat sink 4, and ensures the flatness and heat dissipation of the heat sink 4 The height of the chip 4 and the control circuit board 2 can reduce the production process.

Referring again to Figures 3 and 4, a plurality of buckles 11 are provided on adjacent two sides inside the bottom shell 1, and a fixing block 12 is provided on the other side or both sides, and the buckle 11 and the fixing block 12 are matched The control circuit board 2 can be restricted from moving. A plurality of supporting members 17 are provided inside the bottom case 1, and the supporting members 17 can support the control circuit board 2.

Specifically, the structure of the buckle is that the buckle 11 includes a horizontal limit block 13 and a vertical limit block 14 arranged on the horizontal limit block 13. The horizontal limit block 13 is arranged on the control circuit board 2 On the outside, the vertical limit block 14 is set toward the control circuit board 2.

When installing, place one or both sides of the control circuit board 2 under the fixing block 12, and gently break the horizontal limit block 13 of the buckle 11 outward so that the control circuit board 2 can be placed on the vertical limit block 14 Below, the buckle 11 is made of a tough material. When the horizontal limit block 13 is released, the horizontal limit block 13 can be automatically reset. The cooperation of the buckle 11 and the fixed block 12 limits the position of the control circuit board 2. There is no need to lock the control circuit board 2 with screws, reducing the production process.

In addition, two opposite sides of the upper cover 3 are provided with a plurality of protrusions 31, and two corresponding sides of the bottom case 1 are provided with a plurality of clamping portions 15, and the clamping portions 15 can clamp the protrusions 31. Specifically, the clamping portion 15 on one side of the bottom case 1 is a protruding block, and the protruding block can block the protrusion. The clamping portion 15 on the opposite side of the bottom shell 1 is a door-shaped clamping block, and the door-shaped clamping block is provided with a clamping groove 16 in which the protrusion 15 can be clamped.

During installation, the protrusion 31 on one side of the upper cover 3 is clamped under the protruding block, and the door-shaped block is lightly opened outwards so that the protrusion 31 on the opposite side of the upper cover 3 is clamped into the slot 16. There is no need for screws to lock the upper cover 3 and the bottom case 1, reducing the production process.

In addition, a plurality of shutters 32 are provided on the upper cover 3. It can increase the air circulation in the controller, reduce the temperature in the controller, and increase the life span. Moreover, the wind blown by the fan of the air conditioner can enter and flow out through the louver 32 to take away heat. A mounting piece 7 is provided on the upper cover 3, and the mounting piece 7 is provided with a through hole to facilitate the installation of the controller on the air conditioner.

The above are only the preferred embodiments of the present utility model, but the present utility model is not limited to the above-mentioned embodiments, as long as it achieves the technical effect of the utility model by any identical or similar means, it shall belong to the protection of the utility model. range.

Claims

An air conditioner controller, which is characterized in that it comprises a bottom shell (1), a control circuit board (2) and an upper cover (3) arranged on the bottom shell, and the inner cavity of the upper cover can accommodate all of the control circuit board Or for some electronic components (21), a cooling pipe (5) is arranged above one side of the control circuit board, and a refrigerant can be passed through the cooling pipe.
The air conditioner controller according to claim 1, wherein a heat sink (4) is further provided above one side of the control circuit board, and the cooling tube is embedded in the heat sink.
The air conditioner controller according to claim 2, wherein a groove (41) is provided on the heat sink, and the cooling pipe is placed in the groove.
An air conditioner controller according to claim 3, wherein the radiating fin is provided with two fins, the two radiating fins are arranged up and down, the cooling pipe is arranged between the two radiating fins, and the groove is arranged On the end surface of the cooling fin close to the cooling pipe, the positions of the grooves on the two cooling fins correspond to each other.
The air conditioner controller according to any one of claims 2-4, wherein the heat sink and the cooling pipe are both arranged between the control circuit board and the upper cover.
The air conditioner controller according to any one of claims 1 to 4, characterized in that: the multiple power devices (22) on the control circuit board are all arranged on one side of the control circuit board, and the cooling pipe Located above the power device.
The air conditioner controller according to any one of claims 2-4, wherein a support frame (6) is provided between the control circuit board and the heat sink, and the support frame can support the heat sink.
The air conditioner controller according to claim 1, characterized in that: a plurality of buckles (11) are provided on adjacent two sides inside the bottom shell, and a fixing block (12) is provided on the other side or both sides. ), the cooperation of the buckle and the fixing block can restrict the movement of the control circuit board.
The air conditioner controller according to claim 8, characterized in that: the buckle includes a horizontal limit block (13) and a vertical limit block (14) arranged on the horizontal limit block, the horizontal limit The position block is arranged on the outer side of the control circuit board, and the vertical limit block is arranged toward the control circuit board.
The air conditioner controller according to claim 1, characterized in that: two opposite sides of the upper cover are provided with a plurality of protrusions (31), and the corresponding two sides of the bottom shell are provided with a plurality of clamping parts ( 15), the clamping part can block the protrusion.