Heat dissipation structure of electric control device of air conditioner outdoor unit
By opening an air inlet and air guide bucket at the middle partition of the air conditioner external unit, the cold air is guided to the radiator at the bottom of the electronic control box, the problem of poor heat dissipation effect of the existing air conditioner external unit is solved, and more effective heat dissipation effect and longer service life of the electronic control parts are achieved.
Patent Information
- Application Number
- CN202421406406.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-06-19
AI Technical Summary
The electric control box of existing air conditioners has poor heat dissipation effect, especially in areas far away from the air blades or parts of the device board with large heat generation, which leads to a reduced service life of the electronic control parts and cannot meet the good heat dissipation needs of the electronic control parts in the electronic control box when the air conditioner equipment is running at high load.
Design a heat dissipation structure of an air conditioner external unit electrical control device, including a sheet metal structure of an air conditioner external unit and a heat dissipation module. By opening an air inlet at the middle partition, the cold air is guided to the air guide bucket and connected to the radiator at the bottom of the electronic control box. The airflow driven by the fan flows in the air outlet direction, generating negative pressure to introduce the cold air into the radiator, improving the heat dissipation effect.
It effectively improves the heat dissipation effect of the electronic control components in the electronic control box, extends the service life of the electronic control components, and meets the heat dissipation needs of the electronic control components in the electronic control box when the air conditioner equipment is running at high load.
Smart Images
Figure CN222617078U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air conditioners, in particular to a heat dissipation structure of an electric control device for an outdoor unit of an air conditioner. Background Art
[0002] At present, air conditioners (heat pumps) generally use heat sinks for passive heat dissipation or air-cooled radiators to increase the ventilation volume of the heat sinks and use forced convection of air to achieve heat dissipation. The specific heat dissipation process is to first conduct the heat generated by the electronic control module board or other heating components to the radiator through thermal conductive glue, and then transfer the heat on the radiator to the air through the airflow directly generated by the outdoor fan.
[0003] The existing air conditioner outdoor unit places the electric control box and the radiator on the top of the fan and the fan blades, and drives the airflow through the rotation of the fan blades, thereby taking away the heat on the radiator, thereby achieving the purpose of cooling the electric control components in the electric control box.
[0004] This method can effectively utilize the space on the top of the fan blades, but due to the effect of the airflow field, the heat dissipation effect of the electronic control box is poor, especially in the area far away from the fan blades in the electronic control box or some components on the device board with high heat generation, resulting in a reduction in the service life of the electronic control components in the electronic control box, and unable to meet the good heat dissipation requirements of the electronic control components in the electronic control box when the air-conditioning equipment is running at high load. Utility Model Content
[0005] In order to solve the above technical problems, a heat dissipation structure of an electric control device of an air conditioner outdoor unit is provided.
[0006] To achieve the above purpose, the following scheme is provided: a heat dissipation structure of an air-conditioning outdoor unit electronic control device, comprising an air-conditioning outdoor unit sheet metal structure and a heat dissipation module, the air-conditioning outdoor unit sheet metal structure comprising an outer shell and a middle partition, the middle partition is installed in the outer shell so that the outer shell is divided into an installation compartment and a heat dissipation compartment, a fan and an electric control box are installed in the heat dissipation compartment, the electric control box is located above the fan, the heat dissipation module is installed at the bottom of the electric control box, the heat dissipation module comprises a radiator and an air guide scoop, the radiator is installed at the bottom of the electric control box, one end of the radiator is connected to the air outlet of the air guide scoop, the air inlet of the air guide scoop is connected to the middle partition, an air inlet is opened at the middle partition, and the setting position of the air inlet is adapted to the setting position of the air inlet of the air guide scoop.
[0007] Furthermore, a guide baffle is provided at one end of the air guide scoop close to the air outlet, the guide baffle extends to the radiator and is located on a side of the radiator away from the electric control box.
[0008] Furthermore, the size and area of the air inlet is greater than or equal to the size and area of the air outlet.
[0009] Furthermore, the size of the air outlet is smaller than or equal to the size of the end surface of the radiator.
[0010] Furthermore, a compressor, refrigeration components and piping components are installed in the installation bin.
[0011] Furthermore, the outer shell is provided with a plurality of ventilation holes, and the ventilation holes are located on the side sheet metal of the installation compartment.
[0012] The working principle and advantages of the utility model are as follows: the heat dissipation structure of the electronic control device of the outdoor unit of the air conditioner opens an air inlet at the middle partition, and connects the air inlet to the radiator at the bottom of the electric control box through an air guide scoop. When the fan in the heat dissipation compartment rotates, the air flow in the radiator area is driven to flow along the traction force in the air outlet direction, and negative pressure is generated at the air inlet of the middle partition, and the cold air outside the outer shell passes through the vents at the installation compartment, the vents on the middle partition and the air guide plate in sequence to flow to the radiator, thereby improving the heat dissipation effect of the radiator, ensuring the heat dissipation effect of the electric control components in the electric control box, effectively improving the service life of the electric control components, and meeting the user's usage needs. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is the front view of the utility model;
[0014] Figure 2 This is a structural diagram of the first embodiment of the utility model;
[0015] Figure 3 This is a structural diagram of the second embodiment of the present utility model;
[0016] Figure 4 This is a structural diagram of the third embodiment of the present utility model;
[0017] Figure 5 This is a structural diagram of the fourth embodiment of the present utility model.
[0018] The reference numerals in the drawings of the specification include:
[0019] 1. Fan, 2. Radiator, 201. First small radiator, 202. Second small radiator, 3. Electric control box, 4. Air guide scoop, 401. Air outlet, 402. Guide baffle, 403. Guide sleeve, 404. Air inlet, 5. Middle partition, 501. Air inlet, 6. Installation compartment, 7. Compressor, 8. Heat dissipation compartment, 9. Outer shell. DETAILED DESCRIPTION
[0020] The following is a further detailed description through specific implementation methods:
[0021] like Figures 1 to 5 As shown:
[0022] A heat dissipation structure of an electric control device for an air conditioner outdoor unit includes a sheet metal structure of the air conditioner outdoor unit and a heat dissipation module. The sheet metal structure of the air conditioner outdoor unit includes an outer shell and a middle partition 5. The middle partition 5 is installed in the outer shell so that the outer shell is divided into an installation chamber and a heat dissipation chamber. The installation chamber and the heat dissipation chamber are respectively used to install a fan 1 and a compressor of the air conditioner outdoor unit. The fan 1 is isolated from the compressor, which effectively improves the noise of the air conditioner outdoor unit, improves the heat exchange efficiency, and can form a support and fix the electric control box 3 so that the environment of the electric control operation of the air conditioner outdoor unit is in a better working state. At the same time, the electric control box 3 of the air conditioner outdoor unit is also installed in the heat dissipation chamber and the electric control box 3 is located above the fan 1.
[0023] The heat dissipation module is installed at the bottom of the electric control box 3, and is used to discharge the heat generated at the electric control box 3. The heat dissipation module includes a radiator 2 and an air guide scoop 4. The radiator 2 is installed at the bottom of the electric control box 3. The electric control box 3 contains relevant circuit PCB boards, electric control module boards and other electric control components for controlling the operation of the air-conditioning outdoor unit. The radiator 2 is connected to the middle partition 5 through the air guide scoop 4. The end of the air guide scoop 4 close to the radiator 2 is the air outlet 401 of the air guide scoop 4, and the end of the air guide scoop 4 connected to the middle partition 5 is the air inlet 404. The size of the air inlet 404 is greater than or equal to the size of the air outlet 401. An air inlet 501 is provided at the position where the middle partition 5 is connected to the air guide scoop 4. The air inlet 501 can guide the cold air in the installation cavity to the air guide scoop 4, thereby allowing the cold air to enter the radiator 2
[0024] A guide baffle 402 is provided at one end of the air guide 4 close to the air outlet 401, and the guide baffle 402 extends to the radiator 2 and is located on the side of the radiator 2 away from the electric control box 3, so that when the heat dissipation airflow formed by the cold air flows into the radiator 2 from the air guide 4, due to the effect of the guide baffle 402, the airflow is concentrated in the space between the heat dissipation fins of the radiator 2, reducing the possibility of airflow diffusion, so that the heat dissipation effect of the radiator 2 is better, and at the same time, the heat dissipation airflow can be stably transported to the corresponding position of the radiator 2, ensuring the local heat dissipation effect of the radiator 2.
[0025] The size of the air inlet 501 is greater than or equal to the size of the air outlet 401, ensuring that more cold air flows into the air guide 4, and then the cross-sectional size of the air guide 4 is gradually reduced, thereby increasing the flow rate of the airflow and enhancing the heat dissipation effect.
[0026] The size of the air outlet 401 is smaller than or equal to the end face size of the radiator 2, so that the heat dissipation airflow passing through the air guide 4 can all enter the radiator 2; when the size of the air outlet 401 is smaller than the cross-sectional size of the radiator 2, the heat dissipation airflow is concentrated on the local flow of the radiator 2, which can enhance the local heat dissipation effect of the radiator 2; when the size of the air outlet 401 is the same as the cross-sectional size of the radiator 2, the radiator 2 can be fully cooled.
[0027] The installation compartment is equipped with compressor 7, refrigeration components and piping components of the air conditioner outdoor unit and other components of the air conditioner outdoor unit. This is an existing mature technology and will not be described in detail here. The middle partition 5 separates the fan 1 and the compressor to reduce the noise of the air conditioner outdoor unit.
[0028] The outer shell is provided with a plurality of vents, and the vents are located at the heat dissipation compartment so that cold air from the outside can enter the installation compartment and then enter the heat dissipation module to dissipate heat for the electric control box 3 .
[0029] The specific implementation process is as follows: Embodiment 1
[0030] like Figure 1 to Figure 2 As shown, an air inlet 501 is provided at the middle partition 5, and the air inlet 501 is close to the radiator 2. The radiator 2 and the air inlet 501 are connected through the air guide scoop 4, so that the air inlet 404 of the air guide scoop 4 is connected with the air inlet 501, and the air outlet 401 of the air guide scoop 4 is connected with the side end of the radiator 2; when the fan 1 in the heat dissipation bin is running, the fan 1 discharges the hot air in the heat dissipation bin, so that a flowing airflow is formed in the area where the radiator 2 is located, and the air at the radiator 2 is drawn away, and the air inlet 501 at the middle partition 5 generates negative pressure, so that the cold air outside the outer shell passes through the ventilating port and the air inlet 501 at the installation bin in turn into the air guide scoop 4, and the heat dissipation airflow formed by the cold air enters the radiator 2 through the guidance of the air guide scoop 4, and then takes away the heat of the radiator 2, thereby realizing the heat dissipation effect of the electrical components in the electric control box 3.
[0031] The heat dissipation structure of the electric control device of the outdoor unit of the air conditioner is achieved by opening an air inlet 501 at the middle partition 5, and connecting the air inlet 501 to the radiator 2 at the bottom of the electric control box 3 through the air guide 4. When the fan 1 in the heat dissipation compartment rotates, the air flow in the radiator 2 area is driven to flow along the traction force in the air outlet direction, and at the same time, negative pressure is generated at the air inlet 501 of the middle partition 5, and the cold air outside the outer shell is flowed to the radiator 2 through the vents on the side sheet metal of the installation compartment, the vents on the middle partition 5 and the air guide plate in sequence, thereby improving the heat dissipation effect of the radiator 2, ensuring the heat dissipation effect of the electric control components in the electric control box 3, effectively improving the service life of the electric control components, and meeting the user's usage needs. Embodiment 2
[0032] like Figure 3 As shown, the difference between this embodiment and embodiment 1 is that a guide baffle 402 is provided at one end of the air guide scoop 4 close to the air outlet 401, and the guide baffle 402 extends to the radiator 2. The length of the guide baffle can be set as needed to adjust the covering length of the guide baffle 402 at the radiator 2. The guide baffle 402 is located at the bottom of the radiator 2, so that the guide baffle 402 covers part of the heat dissipation fins of the radiator 2, thereby forming a relatively closed airflow channel in the radiator 2, so that when the heat dissipation airflow formed by the cold air flows from the air guide scoop 4 into the radiator 2, due to the action of the guide baffle 402, the airflow is concentrated in the airflow channel formed between the heat dissipation fins of the radiator 2, thereby reducing the possibility of the heat dissipation airflow diffusing outward, and at the same time, the heat dissipation airflow can be stably transported to the corresponding position of the radiator 2, thereby improving the local heat dissipation performance of the radiator 2. Embodiment 3
[0033] like Figure 4 As shown, the difference between this embodiment and the second embodiment is that the radiator 2 can be composed of multiple small radiators. Here, two small radiators are taken as an example. The two small radiators are respectively a first small radiator 201 and a second small radiator 202. A guide sleeve 403 is installed in the gap between the first small radiator 201 and the second small radiator 202. The size of the guide sleeve 403 is determined by the size of the part of the electric control box 3 that needs heat dissipation. The function of the guide sleeve 403 is to connect the air flow channel formed between the cooling fins of the two small radiators and the guide baffle 402 to prevent the heat dissipation airflow flowing through the two small radiators from diffusing to the outside from the gap between the two small radiators, affecting the heat dissipation performance. Embodiment 4
[0034] like Figure 5 As shown, the difference between this embodiment and embodiment four is that when the heat of the second small radiator 202 is high, the temperature of the heat dissipation airflow flowing through the second small radiator 202 at the air guide scoop 4 will increase, and when the heat dissipation airflow subsequently flows into the first small radiator 201, the heat dissipation effect of the heat dissipation airflow will decrease. If it is necessary to improve the heat dissipation effect of the first small radiator 201, the guide baffle 402 and the guide channel can be set on the side of the second small radiator 202, so that the air guide scoop 4 directly transmits the heat dissipation airflow through the guide baffle 402 and the guide sleeve 403 to the first small radiator 201, and the heat dissipation airflow can directly act on the first small radiator 201 without flowing through the second small radiator 202, ensuring that a lower temperature heat dissipation airflow can be introduced into the first small radiator 201.
[0035] The above is only an embodiment of the utility model. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the utility model before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for the technicians in this field, without departing from the structure of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, which will not affect the effect of the implementation of the utility model and the applicability of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to explain the content of the claims.
Claims
1. A heat dissipation structure of an electric control device for an air conditioner outdoor unit, characterized in that: It includes an air-conditioning outdoor unit sheet metal structure and a heat dissipation module. The air-conditioning outdoor unit sheet metal structure includes an outer shell and a middle partition. The middle partition is installed in the outer shell so that the outer shell is divided into an installation compartment and a heat dissipation compartment. A fan and an electric control box are installed in the heat dissipation compartment. The electric control box is located above the fan. The heat dissipation module is installed at the bottom of the electric control box. The heat dissipation module includes a radiator and an air guide scoop. The radiator is installed at the bottom of the electric control box. One end of the radiator is connected to the air outlet of the air guide scoop, and the air inlet of the air guide scoop is connected to the middle partition. An air duct is opened at the middle partition, and the setting position of the air duct is adapted to the setting position of the air inlet of the air guide.
2. The heat dissipation structure of the air conditioner outdoor unit electronic control device according to claim 1, characterized in that: A guide baffle is arranged at one end of the air guide scoop close to the air outlet. The guide baffle extends to the radiator and is located at a side of the radiator away from the electric control box.
3. The heat dissipation structure of the air conditioner outdoor unit electronic control device according to claim 1, characterized in that: The size and area of the air inlet is greater than or equal to the size and area of the air outlet.
4. The heat dissipation structure of the air conditioner outdoor unit electronic control device according to claim 1, characterized in that: The size and area of the air outlet is smaller than or equal to the size and area of the end surface of the radiator.
5. The heat dissipation structure of the air conditioner outdoor unit electronic control device according to claim 1, characterized in that: The installation bin is equipped with a compressor, refrigeration components and piping components.
6. The heat dissipation structure of the air conditioner outdoor unit electronic control device according to claim 1, characterized in that: The outer shell is provided with a plurality of ventilation holes, and the ventilation holes are located on the side sheet metal of the installation bin.