Temperature control shell applied to power device

Abstract

The embodiment of the invention provides a temperature control shell applied to a power device, and the shell comprises a shell which is used for placing the power device; the thermoelectric driving unit is arranged on the shell, and the thermoelectric driving unit is used for generating electric energy through the temperature difference between the operation temperature of the power device and the environment temperature; the cooling unit is arranged on the shell, and the cooling unit is used for cooling the power device in the shell; the switch unit is arranged in the shell, the first end of the switch unit is electrically connected with the thermoelectric driving unit, the second end of the switch unit is electrically connected with the cooling unit, and the control end of the switch unit is electrically connected with the power device; when the control end of the switch unit receives a driving signal of the power device, the first end and the second end are conducted, so that the thermoelectric driving unit supplies power to the cooling unit through the switch unit, and the cooling unit cools the power device. According to the technical scheme, the operation temperature of the power device can be reduced in the operation process of the power device.

Description

Technical Field

[0001] The present application relates to the field of temperature control technology, and in particular to a temperature control housing applied to a power device. Background Art

[0002] With the continuous development of science and technology, the application of power devices in circuits has become one of the common ways for people to improve the input power of circuits, enhance the energy-saving effect of circuits and extend the service life of circuits.

[0003] In the related art, when a power device improves the input power of a circuit, as the power device operates, it will cause the power device to generate heat, causing the operating temperature of the power device to continue to increase. When the operating temperature exceeds the rated operating temperature of the power device, the performance of the power device will rapidly decrease, and even cause damage to the power device.

[0004] Therefore, during the operation of power devices, how to reduce the operating temperature of power devices has become an urgent problem to be solved. Summary of the invention

[0005] In order to solve the above technical problems, an embodiment of the present application provides a temperature control housing applied to a power device.

[0006] According to one aspect of an embodiment of the present application, a temperature control shell for a power device is provided, comprising: a shell for placing the power device; a thermoelectric drive unit, the thermoelectric drive unit is arranged on the shell, and the thermoelectric drive unit is used to generate electrical energy through the temperature difference between the operating temperature of the power device and the ambient temperature; a cooling unit, the cooling unit is arranged on the shell, and the cooling unit is used to cool the power device in the shell; a switch unit, the switch unit is arranged in the shell, the first end of the switch unit is electrically connected to the thermoelectric drive unit, the second end is electrically connected to the cooling unit, and the control end is electrically connected to the power device; when the control end of the switch unit receives a driving signal of the power device, the first end and the second end are turned on, so that the thermoelectric drive unit supplies power to the cooling unit through the switch unit, so that the cooling unit cools the power device.

[0007] In some embodiments of the present application, based on the aforementioned scheme, the temperature control shell also includes: a first power supply capacitor, the positive pole of the first power supply capacitor is electrically connected to the second end of the switch unit, and the negative pole of the first power supply capacitor is grounded; when the control end of the switch unit does not receive a driving signal, the first power supply capacitor supplies power to the cooling unit.

[0008] In some embodiments of the present application, based on the aforementioned scheme, the temperature control shell also includes: an anti-reverse diode, the positive pole of the anti-reverse diode is electrically connected to the second end of the switching unit, and the negative pole of the anti-reverse diode is electrically connected to the positive pole of the first power supply capacitor and the cooling unit respectively.

[0009] In some embodiments of the present application, based on the aforementioned scheme, the temperature control shell also includes: a display unit, one end of the display unit is electrically connected to the second end of the switch unit, and the other end of the display unit is grounded and used to display a cooling mark; wherein the cooling mark indicates that the cooling unit is cooling the power device; when the control end of the switch unit receives a driving signal, the first end and the second end are turned on, so that the thermoelectric driving board supplies power to the display unit through the switch unit, so that the display unit displays the cooling mark.

[0010] In some embodiments of the present application, based on the aforementioned scheme, the display unit includes: a voltage detector, an input end of the voltage detector is electrically connected to the second end of the switching unit, and is used to output a control signal when a voltage signal is detected; a signal light, one end of the signal light is electrically connected to the output end of the voltage detector, and the other end of the signal light is grounded; when the signal light receives the control signal output by the voltage detector, the signal light displays a cooling mark.

[0011] In some embodiments of the present application, based on the aforementioned scheme, the temperature control shell also includes: a second power supply capacitor, the positive pole of the second power supply capacitor is electrically connected between the second end of the switch unit and the display unit, and the negative pole of the second power supply capacitor is grounded; when the control end of the switch unit does not receive a driving signal, the second power supply capacitor supplies power to the display unit.

[0012] In some embodiments of the present application, based on the aforementioned solution, the temperature control housing further includes: a current regulating resistor, one end of the current regulating resistor is electrically connected to the thermoelectric drive unit, and the other end of the current regulating resistor is grounded.

[0013] In some embodiments of the present application, based on the aforementioned solution, one side of the thermoelectric drive unit faces outside the shell, and the other side of the thermoelectric drive unit is in contact with the substrate of the power device through thermal grease.

[0014] In some embodiments of the present application, based on the aforementioned solution, the cooling unit includes at least one of the following: an air-cooled radiator, a water-cooled radiator, and a thermoelectric cooling plate.

[0015] In some embodiments of the present application, based on the aforementioned solution, the switch unit includes at least one of the following: an insulated gate bipolar transistor, a field effect transistor, and a triode.

[0016] In the technical solution of the embodiment of the present application, after the circuit inputs a driving signal to the power device, the power device operates under the control of the driving signal, and the operating temperature of the power device will continue to increase accordingly, thereby generating a temperature difference between the operating temperature of the power device and the ambient temperature, and the thermoelectric drive unit can use the temperature difference to generate electrical energy; at the same time, after the control end of the switch unit receives the driving signal based on the electrical connection with the control device, the first end and the second end are turned on, so that the thermoelectric drive unit can supply power to the cooling unit through the switch unit, so that the cooling unit can be powered on to cool the power device, thereby achieving the purpose of reducing the operating temperature of the power device during the operation of the power device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0018] Figure 1 It is a structural schematic diagram of a temperature control housing applied to a power device provided by an exemplary embodiment of the present application;

[0019] Figure 2 It is a schematic diagram of a circuit structure of a temperature control housing applied to a power device provided by an exemplary embodiment of the present application;

[0020] Figure 3 is Figure 2 A schematic diagram of a circuit structure of a temperature control housing applied to a power device provided on the basis of;

[0021] Figure 4 yes Figure 3 A schematic diagram of the circuit structure of the anti-reverse diode in an exemplary embodiment shown in the embodiment;

[0022] Figure 5 is Figure 4 A schematic diagram of a circuit structure of a temperature control housing applied to a power device provided on the basis of;

[0023] Figure 6 yes Figure 5 A schematic diagram of the circuit structure of a display unit in an exemplary embodiment shown in the embodiment;

[0024] Figure 7 is Figure 6 A schematic diagram of a circuit structure of another display unit provided on the basis of FIG.

[0025] Figure 8 is Figure 7 A schematic diagram of a circuit structure of a temperature control housing applied to a power device provided on the basis of;

[0026] Fig. 9 is Figure 8 A circuit structure diagram of a temperature control housing for a power device is provided based on the present invention. DETAILED DESCRIPTION

[0027] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more comprehensive and complete and fully convey the concept of the example embodiments to those skilled in the art.

[0028] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0029] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0030] The terms "first", "second", "third", "fourth", etc. in the specification, claims and drawings of this application are used to distinguish different objects rather than to describe a specific order. The terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions.

[0031] It should be noted that the "multiple" mentioned in this article refers to two or more. "And / or" describes the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0032] Figure 1 FIG. 1 is a schematic diagram of a temperature control housing for a power device provided by an exemplary embodiment of the present application. Figure 1As shown, the temperature control housing 100 may include a housing 101, a thermoelectric drive unit 102, a cooling unit 103 and a switch unit 104, and each part will be introduced one by one below.

[0033] The housing 101 is used to place the power device 105. In some embodiments of the present application, the housing 101 can be used to fix the power device and provide a closed control for the power device to ensure that the power device is not easily displaced during use, and to prevent pollution from the external environment from entering the power device and causing damage to the power device.

[0034] Thermoelectric drive unit 102, the thermoelectric drive unit 102 can be arranged on the shell 101, and the thermoelectric drive unit 102 can generate electrical energy through the temperature difference between the operating temperature of the power device and the ambient temperature, that is, the thermoelectric drive unit 102 can generate electricity using the first thermoelectric effect (Seebeck effect), that is, the thermoelectric drive unit 102 includes two different conductors, and the two different conductors are respectively located on both sides of the thermoelectric drive unit 102, so as to drive the carriers in the two conductors to move through the temperature difference between the temperatures absorbed by each of the two conductors, thereby generating electrical energy.

[0035] In some embodiments of the present application, one side of the thermoelectric drive unit 102 may face the outside of the housing 101, and the other side of the thermoelectric drive unit 102 may face the substrate of the power device 105. As the power device is started, the operating temperature of the power device continues to increase, so that the temperature difference between the two sides of the thermoelectric drive unit 102 continues to expand, so that a potential difference is formed inside the two different conductors in the thermoelectric drive unit 102, thereby achieving the purpose of generating electrical energy.

[0036] In some embodiments of the present application, in order to improve the rate and ability of the thermoelectric drive unit 102 to generate electrical energy, on the premise that one side of the thermoelectric drive unit 102 is facing the outside of the shell 101, the other side of the thermoelectric drive unit 102 can be abutted against the substrate of the power device 105 through thermal conductive silicone grease, thereby improving the thermal conductivity coefficient between the thermoelectric drive unit 102 and the power device, so that the thermoelectric drive unit 102 can receive the operating temperature of the power device more quickly, and at the same time, the operating temperature of the power device is not easy to decrease during the process of being transferred to the thermoelectric drive unit 102, thereby expanding the temperature difference between the operating temperature of the power device that can be received by the thermoelectric drive unit 102 and the ambient temperature, and enhancing the temperature sensing sensitivity of the thermoelectric drive unit 102 to the operating temperature of the power device.

[0037] In addition, the arrangement of the thermoelectric drive unit 102 on the shell 101 can be flexibly arranged as needed. In one example, the thermoelectric drive unit 102 can be used as the bottom plate of the shell 101 to expand the contact area between the thermoelectric drive unit 102 and the power device and the external environment while ensuring that the shell 101 can fix the power device, thereby increasing the amount of electricity that the thermoelectric drive unit 102 can generate.

[0038] In another example, the thermoelectric drive unit 102 can be nested in the shell 101, and the area of ​​the thermoelectric drive unit 102 is the same as the substrate area of ​​the power device, so as to reduce the area of ​​the thermoelectric drive unit 102 while ensuring that the amount of electricity that can be generated by the thermoelectric drive unit 102 is not easily greatly reduced, thereby reducing the production cost of the temperature control shell 100.

[0039] The cooling unit 103 may be disposed on the housing 101 . The cooling unit 103 is used to cool the power devices in the housing 101 .

[0040] In some embodiments of the present application, the cooling unit 103 may include an air-cooled radiator. Correspondingly, in order to cool the power devices in the shell 101, since the operating temperature generated by the power devices during operation will be continuously transferred to the shell 101, based on this, the air-cooled radiator can increase the rate at which air flows through the shell 101 per unit time to improve the heat transfer efficiency between the external low-temperature air and the shell 101, so that the cooling speed of the shell 101 is accelerated under the influence of the air-cooled radiator, thereby enhancing the heat absorption capacity of the shell 101 for the operating temperature of the power devices, thereby achieving the purpose of cooling the power devices in the shell 101.

[0041] In some embodiments of the present application, the cooling unit 103 may include a water-cooled radiator. Correspondingly, in order to cool the power devices in the shell 101, the water-cooled radiator can transport low-temperature cooling water to the shell 101, and accelerate the cooling speed of the shell 101 by transferring heat between the low-temperature cooling water and the shell 101, thereby enhancing the heat absorption capacity of the shell 101 for the operating temperature of the power devices, thereby achieving the purpose of cooling the power devices in the shell 101.

[0042] In some embodiments of the present application, the cooling unit 103 may include a thermoelectric cooling plate. Correspondingly, in order to cool the power devices of the shell 101, the thermoelectric cooling plate can utilize the second thermoelectric effect (Peltier effect) to cool the shell 101, that is, the thermoelectric cooling plate may include two different heat-conducting metals, and the two different heat-conducting metals are respectively located on both sides of the thermoelectric cooling plate, so that the heat absorbed by the two heat-conducting metals can be transferred along the direction of the current, thereby achieving the purpose of cooling the power devices of the shell 101.

[0043] For example, in a case where the thermoelectric cooling plate includes a first thermally conductive metal and a second thermally conductive metal, the first thermally conductive metal of the thermoelectric cooling plate is located on a side of the thermoelectric cooling plate close to the shell 101, and the second thermally conductive metal of the thermoelectric cooling plate is located on a side of the thermoelectric cooling plate away from the shell 101, if the current direction of the thermoelectric cooling plate is to pass through the first thermally conductive metal and the second thermally conductive metal in sequence, then after the thermoelectric cooling plate is energized, the temperature dissipated from the shell 101 to the first thermally conductive metal can be transferred to the second thermally conductive metal along the direction of the current, and then the second thermally conductive metal is used to transfer heat to the external low-temperature air, thereby accelerating the cooling speed of the shell 101 based on the thermal conductivity of the first thermally conductive metal and the second thermally conductive metal.

[0044] If the current direction of the thermoelectric cooling plate is to pass through the second heat-conducting metal and the first heat-conducting metal in sequence, then after the thermoelectric cooling plate is energized, the ambient temperature absorbed by the second heat-conducting metal can be transferred to the first heat-conducting metal along the current direction, and the first heat-conducting metal cools down the shell 101, thereby accelerating the cooling speed of the shell 101 based on the thermal conductivity of the first heat-conducting metal.

[0045] In addition, the arrangement of the thermoelectric cooling plate on the shell 101 can be flexibly arranged as needed. In one example, the thermoelectric cooling plate can be used as a cover plate of the shell 101 so that the heat-conductive metal on one side of the thermoelectric cooling plate can directly absorb the operating temperature dissipated by the power device. In this way, on the premise that the power device is fixed by the shell 101, the heat conduction efficiency between the thermoelectric cooling plate and the power device and the external environment is respectively expanded, thereby improving the cooling efficiency of the thermoelectric cooling plate for the power device.

[0046] In another example, the thermoelectric cooling plate can be nested on the shell 101, the thermoelectric cooling plate covers the top of the components of the power device, and the area of ​​the thermoelectric cooling plate is the same as the substrate area of ​​the power device. Under the premise of ensuring that the cooling efficiency of the thermoelectric cooling plate for the power device is not greatly reduced, the area of ​​the thermoelectric cooling plate is reduced, thereby reducing the production cost of the temperature control shell 100.

[0047] In some embodiments of the present application, in order to further improve the cooling efficiency of the cooling unit 103, thermal grease can be arranged between the shell 101 and the high-temperature components in the power device, so as to improve the thermal conductivity between the high-temperature components in the power device and the cooling unit 103, so as to achieve the purpose of improving the cooling efficiency of the cooling unit 103.

[0048] Based on the above embodiments, when the thermoelectric cooling plate is used as the cover of the shell 101, the thermal grease can improve the thermal conductivity between the thermoelectric cooling plate and the high-temperature components in the power device, so as to further improve the cooling efficiency of the thermoelectric cooling plate.

[0049] The switch unit 104 is disposed in the housing 101 , a first end of the switch unit 104 is electrically connected to the thermoelectric drive unit 102 , a second end of the switch unit 104 is electrically connected to the cooling unit 103 , and a control end of the switch unit 104 is electrically connected to the power device.

[0050] In some embodiments of the present application, the switch unit 104 may include an insulated gate bipolar transistor, and correspondingly, the collector of the insulated gate bipolar transistor is the first end of the switch unit 104, the emitter of the insulated gate bipolar transistor is the second end of the switch unit 104, and the gate of the insulated gate bipolar transistor is the control end of the switch unit 104.

[0051] In some embodiments of the present application, the switch unit 104 may include a field effect transistor, and correspondingly, the source of the field effect transistor is the first end of the switch unit 104, the drain of the field effect transistor is the second end of the switch unit 104, and the gate of the field effect transistor is the control end of the switch unit 104.

[0052] In some embodiments of the present application, the switch unit 104 may include a transistor, and correspondingly, the collector of the transistor is the first end of the switch unit 104, the emitter of the transistor is the second end of the switch unit 104, and the base of the transistor is the control end of the switch unit 104.

[0053] It should be noted that the power device is used to output the target working power required by the circuit based on the bus power supply, and in order to make the power device output the target working power, the circuit usually inputs a driving signal to the power device to control the operation of the power device through the driving signal, thereby adjusting the power output by the power device. Among them, the driving signal includes but is not limited to a PWM signal, a square wave signal, a triangular wave signal, etc.

[0054] Based on this, in some embodiments of the present application, when the circuit requires the power device to output the target working power based on the bus power supply, a driving signal will be input to the power device. Correspondingly, the control end of the switch unit 104 can receive the driving signal for controlling the operation of the power device based on the electrical connection between the switch unit 104 and the control device. When the control end of the switch unit 104 receives the driving signal of the power device, the first end and the second end are turned on under the control of the control end, so that the thermoelectric drive unit 102 supplies power to the cooling unit 103 through the switch unit 104, thereby causing the cooling unit 103 to cool the power device.

[0055] For example, after the circuit inputs a driving signal to the power device, the power device will operate under the control of the driving signal in order to output the target working power required by the circuit. As the current of the bus power supply is continuously processed by the power device, the operating temperature of the power device will also be continuously increased accordingly, so that a temperature difference is generated between the operating temperature of the power device and the ambient temperature, and the thermoelectric drive unit 102 can use the temperature difference to generate electrical energy. At the same time, after receiving the driving signal based on the electrical connection between the switch unit 104 and the control end of the control device, the first end and the second end are turned on, so that the thermoelectric drive unit 102 can supply power to the cooling unit 103 through the switch unit 104, that is, the cooling unit 103 can be powered on to cool the power device, thereby achieving the purpose of reducing the operating temperature of the power device during the operation of the power device.

[0056] Correspondingly, after the circuit stops inputting the driving signal to the power device, the power device stops running. As the power device stops running, the operating temperature of the power device will not increase further. Considering that the operating temperature of the power device still has a temperature difference with the ambient temperature during a period of time when it stops running, the thermoelectric drive unit 102 can continue to generate electrical energy using the temperature difference. Based on this, the control end of the switch unit 104 can disconnect the first end and the second end to disconnect the cooling unit 103 from the thermoelectric drive unit 102, thereby preventing the thermoelectric drive unit 102 from continuously supplying power to the cooling unit 103, causing the cooling unit 103 to run for a long time, resulting in a decrease in the service life of the cooling unit 103.

[0057] Figure 2 FIG. 1 is a schematic diagram of a circuit structure of a temperature control housing applied to a power device provided by an exemplary embodiment of the present application. Figure 2 As shown, the temperature control housing 100 may further include a first power supply capacitor 106. The positive electrode of the first power supply capacitor 106 is electrically connected to the second end of the switch unit 104, and the negative electrode of the first power supply capacitor 106 is grounded.

[0058] Taking into account that after the power device stops running, although the operating temperature of the power device will not increase further, it takes a long time for the power device to recover to a low-temperature state through natural cooling. Based on this, in an embodiment of the present application, when the control end of the switch unit 104 receives a driving signal, that is, it indicates that the power device starts to run, the control end of the switch unit 104 connects the first end and the second end, so that the thermoelectric drive unit 102 can supply power to the cooling unit 103 through the switch unit 104, so that the cooling unit 103 is powered on to start cooling the power device in operation. At the same time, the thermoelectric drive unit 102 can also charge the first power supply capacitor 106 through the switch unit 104.

[0059] When the control end of the switch unit 104 does not receive a driving signal, which indicates that the power device stops running, the control end of the switch unit 104 disconnects the first end and the second end, so that the thermoelectric drive unit 102 cannot supply power to the cooling unit 103 through the switch unit 104, and the first power supply capacitor 106 charged by the thermoelectric drive unit 102 can further supply power to the cooling unit 103, so that the cooling unit 103 is powered on to start cooling the running power device until the power of the first power supply capacitor 106 is exhausted, thereby shortening the time required for the power device to recover to a low temperature state after stopping operation, while ensuring that the cooling unit 103 is not easy to operate for a long time after the power device stops running.

[0060] Figure 3 is Figure 2 A circuit structure diagram of a temperature control housing for power devices is provided based on the invention. Figure 3 As shown, the temperature control housing 100 may further include an anti-reverse diode 107. The anode of the anti-reverse diode 107 is electrically connected to the second end of the switch unit 104, and the cathode of the anti-reverse diode 107 is electrically connected to the anode of the first power supply capacitor 106 and the cooling unit 103 respectively.

[0061] In an embodiment of the present application, when the control end of the switch unit 104 does not receive a driving signal and the first power supply capacitor 106 supplies power to the cooling unit 103, when the current output by the first power supply capacitor 106 flows toward the cooling unit 103, the anti-reverse diode 107 can use its own unidirectional conduction characteristics to block the current output by the first power supply capacitor 106 from flowing toward the switch unit 104, so as to reduce the possibility that the switch unit 104 is damaged by the current output by the first power supply capacitor 106, and to prevent the switch unit 104 and the connection circuit between the switch unit 104 and the first power supply capacitor 106 and the cooling unit 103 from consuming the current output by the first power supply capacitor 106.

[0062] In addition, in some embodiments of the present application, the anti-reverse diode 107 may include a first diode D1 and a second diode D2. Figure 4 As shown, the anode of the first diode D1 is electrically connected to the second end of the switch unit 104, the cathode of the first diode D1 and the anode of the second diode D2 are electrically connected to the anode of the first power supply capacitor 106; the cathode of the second diode D2 is electrically connected to the cooling unit 103, so that the current output by the first power supply capacitor 106 is prevented from flowing to the switch unit 104 through the first diode D1, thereby reducing the possibility of the switch unit 104 being damaged by the reverse current. At the same time, the reverse current is prevented from flowing in the cooling unit 103 through the second diode D2, thereby reducing the possibility of the cooling unit 103 being damaged by the reverse current.

[0063] Figure 5 is Figure 4 A circuit structure diagram of a temperature control housing for power devices is provided based on the invention. Figure 5 As shown, the temperature control housing 100 may further include a display unit 108. One end of the display unit 108 is electrically connected to the second end of the switch unit 104, and the other end of the display unit 108 is grounded for displaying a temperature reduction mark.

[0064] The cooling mark is used to indicate that the cooling unit is cooling the power device.

[0065] In an embodiment of the present application, when the control end of the switch unit 104 receives a driving signal, the control end of the switch unit 104 will turn on the first end and the second end, and the thermoelectric drive unit 102 can simultaneously supply power to the cooling unit 103, the first power supply capacitor 106 and the display unit 108 through the switch unit 104, so that the cooling unit 103 can be powered on to start cooling the power device during operation, the first power supply capacitor 106 can be charged based on the power supply provided by the thermoelectric drive unit 102, and the display unit 108 can display a cooling mark based on the power supply provided by the thermoelectric drive unit 102, so that the user can determine whether the cooling unit 103 cools the power device by observing the cooling mark displayed on the display unit 108, so that the user can actively adjust the working condition of the power device after the cooling unit 103 is started, thereby improving the output capacity of the power device.

[0066] In some embodiments of the present application, the display unit 108 may include a display screen, and correspondingly, after the thermoelectric drive unit 102 supplies power to the display unit 108, the display screen may start and display a preset cooling mark. The cooling mark may be displayed in the display screen in at least one of text and an icon.

[0067] In addition, in one example, the display screen can further display the operating temperature information of the power device, the power information output by the thermoelectric drive unit 102, the operating temperature information of the cooling unit 103, etc., so that the user can further confirm the operating status of the power device and the temperature control housing 100.

[0068] In some embodiments of the present application, the display unit 108 may include a signal light, and correspondingly, after the thermoelectric drive unit 102 supplies power to the display unit 108, the signal light may be activated and display a preset cooling mark. The display mode of the cooling mark in the signal light may be at least one of a target color, constant light, and flashing.

[0069] In some embodiments of the present application, the display unit 108 may include a voltage detector and a signal light. Figure 6 As shown, the input end of the voltage detector 109 is electrically connected to the second end of the switch unit 104, and is used to output a control signal when a voltage signal is detected; one end of the signal light 110 is electrically connected to the output end of the voltage detector 109, and the other end of the signal light 110 is grounded. When the signal light 110 receives the control signal output by the voltage detector 109, the signal light 110 displays a cooling mark, so that when the first end and the second end of the switch unit 104 are turned on, the voltage detector 109 can obtain the voltage signal output by the thermoelectric drive unit 102 through the switch unit 104, thereby outputting a control signal for instructing the signal light 110 to display a cooling mark.

[0070] For example, when the control end of the switch unit 104 receives a driving signal, the power output by the thermoelectric drive unit 102 can flow to the voltage detector 109 through the switch unit 104, so that the input end of the voltage detector 109 can receive the voltage signal generated by the thermoelectric drive unit 102 based on the electrical connection with the second end of the switch unit 104, so that the output end of the voltage detector 109 outputs a control signal. Correspondingly, the signal light 110 can receive the control signal based on the electrical connection with the output end of the voltage detector 109 to display a temperature reduction mark.

[0071] In addition, in some embodiments of the present application, the display unit 108 Figure 6 A third diode D3 may also be included. Figure 7 As shown, the voltage detector 109 is electrically connected to the signal light 110 through the third diode D3, and the anode of the third diode D3 is electrically connected to the output end of the voltage detector 109, and the cathode of the third diode is electrically connected to one end of the signal light 110, so as to prevent the abnormal current of the grounding circuit from entering the voltage detector 109 through the third diode D3, interfering with the detection of the voltage detector 109, thereby improving the detection accuracy of the voltage detector 109.

[0072] Figure 8 is Figure 7 A circuit structure diagram of a temperature control housing for power devices is provided based on the invention. Figure 8 As shown, the temperature control housing 100 may further include a second power supply capacitor 111. The positive electrode of the second power supply capacitor 111 is electrically connected between the second end of the switch unit 104 and the display unit 108, and the negative electrode of the second power supply capacitor 111 is grounded.

[0073] Considering that after the power device stops running, the cooling unit 103 can continue to cool the power device under the power supply of the first power supply capacitor 106, based on this, in an embodiment of the present application, when the control end of the switching unit 104 receives a driving signal, the thermoelectric driving unit 102 can also charge the second power supply capacitor 111 through the switching unit 104.

[0074] When the control end of the switch unit 104 does not receive a driving signal, the control end of the switch unit 104 disconnects the first end and the second end to disconnect the electrical connection between the thermoelectric drive unit 102 and the display unit 108. While the first power supply capacitor 106 supplies power to the cooling unit 103, the second power supply capacitor 111 supplies power to the display unit 108, so that after the power device stops running, the display unit 108 can still continue to display the working status of the cooling unit 103 until the power of the second power supply capacitor 111 is exhausted.

[0075] In some embodiments of the present application, the operating time of the display unit 108 under the power supply of the second power supply capacitor 111 is the same as the operating time of the cooling unit 103 under the power supply of the first power supply capacitor 106, so as to improve the matching degree between the cooling mark displayed by the display unit 108 and the working status of the cooling unit 103.

[0076] Fig. 9 is Figure 8 A circuit structure diagram of a temperature control housing for power devices is provided based on the invention. Fig. 9 As shown, the temperature control housing 100 may further include a current regulating resistor R1. One end of the current regulating resistor R1 is electrically connected to the thermoelectric drive unit 102, and the other end of the current regulating resistor R1 is grounded.

[0077] Taking into account that as the operating time of power devices continues to increase, the temperature difference between the operating temperature of the power devices and the ambient temperature continues to increase. Correspondingly, the voltage and current of the electric energy generated by the thermoelectric driving board continue to increase, and the cooling unit 103 has a rated working voltage and a rated working current. If the voltage and current generated by the thermoelectric driving board exceed the rated working voltage and the rated working current of the cooling unit 103, the cooling unit 103 will be in an abnormal working state of overvoltage and overcurrent under the power supply of the thermoelectric driving board, resulting in a decrease in the service life of the cooling unit 103.

[0078] Therefore, in an embodiment of the present application, when the control end of the switch unit 104 receives a driving signal, which indicates that the power device starts to operate, the thermoelectric drive unit 102 can generate electrical energy through the temperature difference between the operating temperature of the power device and the ambient temperature, and the control end of the switch unit 104 connects the first end and the second end, so that the thermoelectric drive unit 102 can supply power to the cooling unit 103 through the switch unit 104; at the same time, the thermoelectric drive unit 102 can also supply power to the current regulating resistor R1, thereby achieving the purpose of shunting the electrical energy generated by the thermoelectric drive unit 102, reducing the probability of the cooling unit 103 being in an abnormal working state of overvoltage and overcurrent under the power supply of the thermoelectric drive board, thereby ensuring that the service life of the cooling unit 103 is not easily reduced.

[0079] When the control end of the switch unit 104 does not receive a driving signal, it indicates that the power device stops running. However, since it takes a certain amount of time for the power device to recover to a low-temperature state, there is still a temperature difference between the operating temperature of the power device and the ambient temperature. The thermoelectric drive unit 102 can still generate electrical energy through the temperature difference between the operating temperature of the power device and the ambient temperature. When the control end of the switch unit 104 disconnects the first end and the second end, the thermoelectric drive unit 102 can supply power to the current regulating resistor R1, so that the electric energy output by the thermoelectric drive unit 102 is consumed by the current regulating resistor R1 and then conducted to the ground, thereby reducing the influence of the current output by the thermoelectric drive unit 102 on the grounding circuit, thereby improving the safety of the temperature control housing 100.

[0080] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the embodiments disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary technical means in the art that are not disclosed in the present application.

[0081] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A temperature control housing for a power device, characterized in that: include: A housing for placing the power device; A thermoelectric drive unit, the thermoelectric drive unit being arranged on the housing and being used to generate electric energy through a temperature difference between an operating temperature of the power device and an ambient temperature; A cooling unit, the cooling unit being disposed on the housing and used for cooling the power device in the housing; A switch unit, wherein the switch unit is disposed in the housing, a first end of the switch unit is electrically connected to the thermoelectric drive unit, a second end of the switch unit is electrically connected to the cooling unit, and a control end of the switch unit is electrically connected to the power device; When the control end of the switch unit receives the driving signal of the power device, the first end and the second end are connected, so that the thermoelectric drive unit supplies power to the cooling unit through the switch unit, so that the cooling unit cools the power device.

2. The temperature control housing according to claim 1, characterized in that: include: A first power supply capacitor, wherein a positive electrode of the first power supply capacitor is electrically connected to the second end of the switch unit, and a negative electrode of the first power supply capacitor is grounded; When the control end of the switch unit does not receive the driving signal, the first power supply capacitor supplies power to the cooling unit.

3. The temperature control housing according to claim 2, characterized in that: include: An anti-reverse diode, wherein the positive electrode of the anti-reverse diode is electrically connected to the second end of the switch unit, and the negative electrode of the anti-reverse diode is electrically connected to the positive electrode of the first power supply capacitor and the cooling unit respectively.

4. The temperature control housing according to claim 1, characterized in that: include: A display unit, one end of which is electrically connected to the second end of the switch unit, and the other end of which is grounded, for displaying a cooling mark; wherein the cooling mark indicates that the cooling unit is cooling the power device; When the control end of the switch unit receives the driving signal, the first end and the second end are connected, so that the thermoelectric driving board supplies power to the display unit through the switch unit, so that the display unit displays the cooling mark.

5. The temperature control housing according to claim 4, characterized in that: The display unit comprises: a voltage detector, the input end of the voltage detector being electrically connected to the second end of the switch unit, and configured to output a control signal when a voltage signal is detected; A signal lamp, one end of which is electrically connected to the output end of the voltage detector, and the other end of which is grounded; When the signal light receives the control signal output by the voltage detector, the signal light displays the temperature drop mark.

6. The temperature control housing according to claim 4, characterized in that: include: a second power supply capacitor, wherein a positive electrode of the second power supply capacitor is electrically connected between the second end of the switch unit and the display unit, and a negative electrode of the second power supply capacitor is grounded; When the control end of the switch unit does not receive the driving signal, the second power supply capacitor supplies power to the display unit.

7. The temperature control housing according to claim 1, characterized in that: include: A current regulating resistor, one end of which is electrically connected to the thermoelectric drive unit, and the other end of which is grounded.

8. The temperature control housing according to claim 1, characterized in that: One side of the thermoelectric drive unit faces outside the shell, and the other side of the thermoelectric drive unit abuts against the substrate of the power device through thermal conductive silicone grease.

9. The temperature control housing according to claim 1, characterized in that: The cooling unit includes at least one of the following: an air-cooled radiator, a water-cooled radiator, and a thermoelectric cooling plate.

10. The temperature control housing according to any one of claims 1 to 9, characterized in that: The switch unit includes at least one of the following: an insulated gate bipolar transistor, a field effect transistor, and a triode.

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