Heat dissipation structure, air conditioner and control method

Abstract

The application provides a heat dissipation structure, comprising: a wind box, the wind box having a containing cavity; a heat exchanger component, arranged in the containing cavity, the heat exchanger component being used for exchanging heat with fluid in the containing cavity; a supply fan, arranged in the containing cavity; a heat dissipation shell, connected with the wind box, the heat dissipation shell having a heat dissipation channel in communication with the containing cavity; and a control component, arranged in the heat dissipation channel, the control component being signal-connected with the supply fan to control operation of the supply fan. The heat dissipation structure, the air conditioner and the control method solve the technical problem that the driving board in the air conditioner in the related art is easily damaged due to excessively high temperature.

Description

Technical Field

[0001] This invention relates to the field of air conditioner technology, specifically to a heat dissipation structure, an air conditioner, and a control method. Background Technology

[0002] A three-speed DC air handling unit is a type of air conditioner. Existing DC air handling units consist of a filter, heat exchanger, motor, fan, and drive board. The motor provides power to drive the fan and is the core component of the unit, while the drive board is an important component that controls the operation of the DC motor.

[0003] However, the drive board in existing air conditioners generates a lot of heat during operation, and there are many precision parts on the drive board. If the drive board is not cooled down, the temperature of the drive board is prone to becoming too high and damaging the drive board.

[0004] Therefore, existing technologies need further development. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and provide a heat dissipation structure, an air conditioner, and a control method to solve the technical problem that the drive board in the air conditioner is easily damaged due to excessive temperature in the related art.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: a heat dissipation structure is provided, comprising: a wind box having a receiving cavity inside; a heat exchanger component disposed within the receiving cavity, the heat exchanger component being used to exchange heat with the fluid within the receiving cavity; a blower disposed within the receiving cavity; a heat dissipation shell connected to the wind box, the heat dissipation shell having a heat dissipation channel communicating with the receiving cavity; and a control component disposed within the heat dissipation channel, the control component being signal-connected to the blower to control the operation of the blower.

[0007] Furthermore, the heat dissipation structure also includes a heat dissipation fan, which is installed inside the heat dissipation channel; the air outlet of the heat dissipation fan 6 faces the control component 5.

[0008] Furthermore, the heat dissipation structure also includes a fresh air housing, which is connected to the heat dissipation housing. A fresh air channel is provided inside the fresh air housing, with one end of the fresh air channel connected to the heat dissipation channel and the other end of the fresh air channel connected to the outside of the receiving cavity.

[0009] Furthermore, the heat dissipation channel has a first communication port communicating with the receiving cavity, and the heat dissipation structure also includes a first control valve, which is disposed at the first communication port to open or close the first communication port.

[0010] Furthermore, the fresh air duct has a second connection port that communicates with the heat dissipation duct, and the heat dissipation structure also includes a second control valve, which is located at the second connection port to open or close the second connection port.

[0011] Furthermore, the second control valve is located between the cooling fan and the first control valve; the heat dissipation structure also includes a control module, which is signal-connected to the cooling fan, the first control valve, and the second control valve.

[0012] Furthermore, the heat dissipation structure also includes: a first temperature sensor, which is mounted on the control component and is signal-connected to the control module to control the opening or closing of the cooling fan through the temperature signal sensed by the first temperature sensor.

[0013] Furthermore, the heat dissipation structure also includes a second temperature sensor, which is disposed within the receiving cavity and is signal-connected to the control module to control the opening or closing of the first control valve and the second control valve through the temperature signal sensed by the second temperature sensor.

[0014] Furthermore, the heat dissipation structure also includes: a filter for filtering fluid, the filter being disposed within the receiving cavity, and a heat exchanger component located on the side of the filter away from the air inlet of the air box; the heat exchanger component being located between the air supply fan and the filter; and a heat dissipation housing being located on the side of the heat exchanger component away from the filter.

[0015] The air supply duct is connected to the air box so that the air supply fan can discharge the airflow in the receiving cavity to the outside of the receiving cavity through the air supply duct. The air supply duct is located on the side of the heat dissipation shell away from the heat exchanger components.

[0016] An air conditioner is provided, which includes the heat dissipation structure described above.

[0017] A control method is provided, applicable to air conditioners as described above. The control method includes: detecting the maximum temperature T1 of the driving component of the air conditioner and comparing T1 with a threshold T2; if T1 is greater than T2, then introducing airflow into the heat dissipation channel to cool the control component; wherein the threshold T2 is set according to the maximum temperature that the control component can withstand.

[0018] Furthermore, as described above, the method for introducing airflow into the heat dissipation channel includes: determining whether the air conditioner is in cooling mode or heating mode; if the air conditioner is in cooling mode, introducing airflow from the housing cavity into the heat dissipation channel; if the air conditioner is in heating mode, introducing fresh air from outside the housing cavity into the heat dissipation channel.

[0019] Beneficial effects:

[0020] The heat dissipation structure, air conditioner, and control method of the present invention can effectively achieve heat dissipation and prevent the drive board from being damaged due to excessive temperature. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the heat dissipation structure used in an embodiment of the present invention;

[0022] Figure 2 This is the method used in the embodiments of the present invention. Figure 1 A magnified view of part A in the middle;

[0023] Figure 3 This is a schematic diagram illustrating the usage of one embodiment of the heat dissipation structure employed in this invention;

[0024] Figure 4 This is a schematic diagram of another embodiment of the heat dissipation structure used in this invention.

[0025] Figure 5 This is an operation flowchart of the heat dissipation structure used in the embodiments of the present invention;

[0026] Figure 6 This is a schematic diagram of the control method used in an embodiment of the present invention.

[0027] The above figures include the following reference numerals:

[0028] 1. Air box; 11. Receiving cavity; 2. Heat exchanger component; 3. Air supply fan; 4. Heat dissipation shell; 41. Heat dissipation channel; 411. First connecting port; 5. Control component; 6. Heat dissipation fan; 7. Fresh air shell; 71. Fresh air channel; 711. Second connecting port; 81. First control valve; 82. Second control valve; 91. First temperature sensor; 92. Second temperature sensor; 10. Filter; 20. Air supply duct. Detailed Implementation

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

[0030] According to an embodiment of the present invention, a heat dissipation structure is provided; please refer to [link / reference]. Figures 1 to 6The system includes: a wind box 1, which has a receiving cavity 11; a heat exchanger component 2, disposed within the receiving cavity 11, which exchanges heat with the fluid within the receiving cavity 11; a blower 3, disposed within the receiving cavity 11; a heat dissipation shell 4, connected to the wind box 1, which has a heat dissipation channel 41 communicating with the receiving cavity 11; and a control component 5, disposed within the heat dissipation channel 41, which is signal-connected to the blower 3 to control its operation. The wind box 1 has a receiving cavity 11 containing the heat exchanger component 2 and the blower 3. The wind box 1 is connected to the heat dissipation shell 4, which communicates with the receiving cavity 11 and has a heat dissipation channel 41. The control component 5 is disposed within the heat dissipation channel 41 and is signal-connected to the blower. The control component 5 generates significant heat during operation, requiring cooling to prevent damage from excessive heat. When cooling of the control component 5 is required, the cold air in the receiving cavity 11 can enter the heat dissipation channel 41, thereby cooling the control component 5. In this way, the cooling function of the air conditioner itself is utilized to cool the control component 5, eliminating the need for separate cooling equipment for the control component 5 and preventing the control component 5 from overheating during air conditioner operation. The heat dissipation structure provided by this invention solves the technical problem in related technologies where the drive board is easily damaged due to overheating.

[0031] See Figure 1 In this embodiment, the heat dissipation structure further includes a cooling fan 6, which is disposed within the heat dissipation channel 41, with its outlet facing the control component 5. The cooling fan 6, located within the heat dissipation channel 41, blows cool air from the receiving cavity 11 into the channel 41, thereby lowering the temperature of the control component 5 within the channel 41 and further achieving the heat dissipation effect.

[0032] See Figure 2 In this embodiment, the heat dissipation structure further includes a fresh air housing 7, which is connected to the heat dissipation housing 4. A fresh air channel 71 is provided inside the fresh air housing 7. One end of the fresh air channel 71 communicates with the heat dissipation channel 41, and the other end of the fresh air channel 71 communicates with the outside of the receiving cavity 11. Adding a fresh air channel 71 outside the heat dissipation housing 4, and connecting the fresh air channel 71 with the heat dissipation channel 41, provides an additional heat dissipation pathway for the control component 5, thus improving the heat dissipation structure by providing multiple heat dissipation methods.

[0033] Specifically, when the air conditioner is heating, the airflow in the fresh air duct 71 is more effective at achieving a cooling effect than the hot airflow in the receiving cavity 11.

[0034] See Figure 3In the heat dissipation structure of this embodiment, the heat dissipation channel 41 has a first communication port 411 communicating with the receiving cavity 11. The heat dissipation structure also includes a first control valve 81, which is disposed at the first communication port 411 to open or close the first communication port 411. The first communication port 411 connects the heat dissipation channel 41 and the receiving cavity 11. The first control valve 81 is disposed at the first communication port 411 to open or close the first communication port 411. Thus, when the air conditioner is heating, the first control valve 81 is closed to prevent hot airflow in the receiving cavity 11 from entering the heat dissipation channel 41, ensuring the heat dissipation effect.

[0035] See Figure 2 In the heat dissipation structure of this embodiment, the fresh air duct 71 has a second connection port 711 communicating with the heat dissipation duct 41. The heat dissipation structure also includes a second control valve 82, which is disposed at the second connection port 711 to open or close the second connection port 711. The second connection port 711 connects the fresh air duct 71 and the heat dissipation duct 41. The second control valve 82 is disposed at the second connection port 711 to open or close the second connection port 711. Thus, when the air conditioner is cooling, closing the second control valve 82 and utilizing only the cold airflow within the receiving cavity 11 can ensure the heat dissipation effect.

[0036] See Figure 2 In the heat dissipation structure of this embodiment, the second control valve 82 is located between the cooling fan 6 and the first control valve 81. The heat dissipation structure also includes a control module, which is signal-connected to the cooling fan 6, the first control valve 81, and the second control valve 82. The control module controls whether the cooling fan 6 operates, controls the first control valve 81 to open or close the first connection port 411, and controls the second control valve 82 to open or close the second connection port 711.

[0037] See Figures 1 to 4 In the heat dissipation structure of this embodiment, the heat dissipation structure further includes: a first temperature sensor 91, which is disposed on the control component 5 and is signal-connected to the control module so as to control the opening or closing of the heat dissipation fan 6 through the temperature signal sensed by the first temperature sensor 91.

[0038] Specifically, the first temperature sensor 91 is used to monitor the temperature of the control component 5. The control component 5 is equipped with the first temperature sensor 91, and the control module is signal-connected to the first temperature sensor 91. The control module transmits the signal to the control component 5 based on the temperature sensed by the first temperature sensor 91, and controls the cooling fan 6 to be in an on or off state according to the received temperature value.

[0039] See Figure 2 In the heat dissipation structure of this embodiment, the heat dissipation structure further includes: a second temperature sensor 92, which is disposed in the receiving cavity 11 and is signal-connected to the control module so as to control the opening or closing of the first control valve 81 and the second control valve 82 through the temperature signal sensed by the second temperature sensor 92.

[0040] Specifically, the second temperature sensor 92 is used to determine whether the air conditioner is in heating or cooling mode. The second temperature sensor 92 is installed inside the receiving cavity 11. The control module is connected to the second temperature sensor 92 by signal transmission. The temperature inside the receiving cavity 11 sensed by the second temperature sensor 92 is transmitted to the control module, which then controls the first control valve 81 and the second control valve 82 to be in an open or closed state based on the received temperature value.

[0041] See Figure 1 In this embodiment, the heat dissipation structure further includes: a filter 10 for filtering fluid, the filter 10 being disposed within the receiving cavity 11, and a heat exchanger component 2 located on the side of the filter 10 away from the air inlet of the air box 1; the heat exchanger component 2 being located between the air supply fan 3 and the filter 10; a heat dissipation shell 4 located on the side of the heat exchanger component 2 away from the filter 10; and an air supply duct 20 connected to the air box 1, so that the air supply fan 3 can discharge the airflow in the receiving cavity 11 to the outside of the receiving cavity 11 through the air supply duct 20, the air supply duct 20 being located on the side of the heat dissipation shell 4 away from the heat exchanger component 2. The fluid first passes through the filter 10 into the receiving cavity 11, where it undergoes energy exchange by the heat exchanger component 2, and the air supply fan 3 discharges the converted airflow through the air supply duct 20.

[0042] The air conditioner in this embodiment includes the heat dissipation structure described above.

[0043] See Figure 6 The control method of this embodiment is applicable to air conditioners with the above-described structure. The control method includes: detecting the maximum temperature T1 of the control component 5 of the air conditioner and comparing T1 with a threshold T2; if T1 is greater than T2, then airflow is introduced into the heat dissipation channel 41 to cool the control component 5; wherein, the threshold T2 is set according to the maximum withstand temperature of the control component 5. Assuming the maximum withstand temperature of the control component 5 is T2, and the detected temperature of the control component 5 is T1, if T1 is greater than T2, the control component needs to be cooled. At this time, the control module opens the first control valve 81 or the second control valve 82 to introduce airflow into the heat dissipation channel 41.

[0044] In the control method of this embodiment, the method of introducing airflow into the heat dissipation channel 41 includes: determining whether the air conditioner is in cooling mode or heating mode; if the air conditioner is in cooling mode, introducing airflow from the receiving cavity 11 into the heat dissipation channel 41; if the air conditioner is in heating mode, introducing fresh air from outside the receiving cavity 11 into the heat dissipation channel 41. If the air conditioner is in cooling mode (e.g., Figure 3 As shown), at this time, the control module opens the first control valve 81 to open the first connection port 411, connecting the receiving cavity 11 with the heat dissipation channel 41, and using the cold airflow in cooling mode to cool the control component 5. This setting not only cools the control component 5, but also makes full use of the cold airflow to achieve energy saving; if the air conditioner is in heating mode (such as...), Figure 4 As shown in the diagram, at this time, the first control valve 81 closes the first connection port 411, which acts as an isolation point, preventing hot airflow from entering the heat dissipation channel 41. The control module opens the second control valve 82 to open the second connection port 711, connecting the fresh air channel 71 with the heat dissipation channel 41, and using the fresh air cool airflow to cool the control component 5.

[0045] See Figure 5 In this embodiment of the air conditioner, a heat protection module is used to detect and control the air blowing system to cool down the control component 5. The DC fan unit has a control component 5, but if the control component 5 is not properly cooled, its components will often be damaged. The heat dissipation structure mainly consists of a detection device, a judgment device, and a control device. The detection device includes a first temperature sensor 91 and a second temperature sensor 92, which can detect various temperatures in real time. The judgment device is used to compare each real-time temperature with a preset temperature value. The control device can be used to control the start and stop of the air supply fan 3, the cooling fan, and the first control valve 81 and the second control valve 82. When the unit is in cooling mode, the low-temperature air inside the unit's housing cavity 11 is used to cool down the control component 5. When the unit is in heating mode, fresh air with a lower outdoor temperature is directly drawn to cool down the control component 5, thereby ensuring the reliability of the control component 5 and its normal operation without problems.

[0046] See Figure 6 In the control method of this embodiment, a temperature threshold is preset. T1 is the temperature value detected in real time, and T2 is the preset value of the control component 5. The preset value of the control component 5 is the highest temperature value of the control component 5 during the operation of the unit. If the temperature exceeds this value, the control component 5 will burn out.

[0047] When the unit is in cooling mode, current flows through the control component 5, causing it to heat up. The temperature of the control component 5 is monitored in real time. When T1 > T2, the first control valve 81 of the heat protection module opens and the second control valve 82 closes. At this time, the small fan blades at the front end of the drive board run, and the drive board fan draws in air. The air inside the unit will then pass through the air valve A1 to cool and dissipate heat from the control component 5.

[0048] When the unit is in heating mode, the internal temperature of the unit is too high and cannot be cooled by the unit's exhaust air temperature. At this time, the first control valve 81 is closed and the second control valve 82 is opened. The cooling fan 6 of the control component 5 is running and the cooling fan 6 draws in fresh air from the outside to cool the control component 5. This cooling method is simple and achieves intelligent control cooling, with a good cooling effect.

[0049] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0050] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0051] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0052] If the integrated units in the above embodiments are implemented as software functional units and sold or used as independent products, they can be stored in the aforementioned computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause one or more computer devices (which may be personal computers, servers, or network devices, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application.

[0053] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0054] In the several embodiments provided in this application, it should be understood that the disclosed client can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, indirect coupling or communication connection between units or modules, and may be electrical or other forms.

[0055] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0056] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0057] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A heat dissipation structure, characterized in that, include: The bellows (1) has a receiving cavity (11) inside. A heat exchanger component (2) is disposed within the receiving cavity (11) and is used to exchange heat with the fluid within the receiving cavity (11); A blower (3) is installed inside the receiving cavity (11); Heat dissipation housing (4), the heat dissipation housing (4) is connected to the air box (1), and the heat dissipation housing (4) has a heat dissipation channel (41) communicating with the receiving cavity (11). A control component (5) is disposed in the heat dissipation channel (41). The control component (5) is connected to the air supply fan to control the operation of the air supply fan (3). The heat dissipation structure also includes a heat dissipation fan (6). The heat dissipation structure also includes a fresh air housing (7), which is connected to the heat dissipation housing (4). A fresh air channel (71) is provided inside the fresh air housing (7). One end of the fresh air channel (71) is connected to the heat dissipation channel (41), and the other end of the fresh air channel (71) is connected to the outside of the receiving cavity (11). The heat dissipation channel (41) has a first communication port (411) communicating with the receiving cavity (11). The heat dissipation structure also includes a first control valve (81), which is disposed at the first communication port (411) to open or close the first communication port (411). The fresh air duct (71) has a second communication port (711) that communicates with the heat dissipation duct (41). The heat dissipation structure also includes a second control valve (82), which is located at the second communication port (711) to open or close the second communication port (711). The control module is signal-connected to the cooling fan (6), the first control valve (81), and the second control valve (82); The first temperature sensor (91) is disposed on the control component (5) and is signal-connected to the control module so as to control the opening or closing of the cooling fan (6) through the temperature signal sensed by the first temperature sensor (91). When the first temperature sensor (91) detects that the temperature T1 of the control component (5) is greater than the preset threshold T2, a heat dissipation operation is performed.

2. The heat dissipation structure according to claim 1, characterized in that, The cooling fan (6) is installed in the cooling channel (41), and the air outlet of the cooling fan (6) faces the control component (5).

3. The heat dissipation structure according to claim 2, characterized in that, The second control valve (82) is located between the cooling fan (6) and the first control valve (81).

4. The heat dissipation structure according to claim 3, characterized in that, The heat dissipation structure also includes: The second temperature sensor (92) is disposed in the receiving cavity (11). The second temperature sensor (92) is signal-connected to the control module so as to control the opening or closing of the first control valve (81) and the second control valve (82) through the temperature signal sensed by the second temperature sensor (92).

5. The heat dissipation structure according to claim 1, characterized in that, The heat dissipation structure also includes: A filter (10) for filtering fluid is disposed in the receiving cavity (11), and a heat exchanger component (2) is located on the side of the filter (10) away from the air inlet of the air box (1); the heat exchanger component (2) is located between the air supply fan (3) and the filter (10); the heat dissipation housing (4) is located on the side of the heat exchanger component (2) away from the filter (10); An air supply duct (20) is connected to the air box (1) so that the air supply fan (3) discharges the airflow in the receiving cavity (11) to the outside of the receiving cavity (11) through the air supply duct (20). The air supply duct (20) is located on the side of the heat dissipation shell (4) away from the heat exchanger component (2).

6. An air conditioner, characterized in that, The air conditioner includes a heat dissipation structure as described in any one of claims 1 to 5.

7. A control method, characterized in that, The control method, applicable to the air conditioner as described in claim 6, includes: The maximum temperature T1 of the control component (5) of the air conditioner is detected, and T1 is compared with the threshold T2; If T1 is greater than T2, airflow is introduced into the heat dissipation channel (41) to cool the control component (5); wherein, the threshold T2 is set according to the maximum temperature that the control component (5) can withstand.

8. The control method according to claim 7, characterized in that, The method of introducing airflow into the heat dissipation channel (41) includes: Determine whether the air conditioner is in cooling mode or heating mode; If the air conditioner is in the cooling mode, the airflow in the receiving cavity (11) is introduced into the heat dissipation channel (41). If the air conditioner is in the heating mode, fresh air from outside the housing cavity (11) is introduced into the heat dissipation channel (41).

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