Compressor temperature protection module and compressor temperature protection system
By introducing a combination of automatic and passive temperature sensing switches into the compressor, the problem of repeated starts caused by overheating and cooling of the compressor is solved, thus extending the service life of the equipment.
Patent Information
- Application Number
- CN202410957901.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2026-01-20
AI Technical Summary
The existing compressor repeatedly starts and stops during the overheating and cooling process, leading to equipment failure and affecting its service life.
The protection system consists of a temperature-sensing automatic switch and a temperature-sensing passive switch. It disconnects the current supply in real time to prevent the compressor from overheating, and restores the electrical connection by manually resetting the mechanical switch to avoid repeated switching and starting.
It effectively prevents the compressor from repeatedly starting and stopping due to overheating and cooling, thus extending the service life of the equipment.
Smart Images
Figure CN121363528A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to a protection module and a protection system, in particular to a compressor temperature protection module and a compressor temperature protection system. BACKGROUND
[0002] Referring to Figure 5A and Figure 5B , which are a circuit schematic diagram and a structure sectional view of the temperature sensing automatic switch 16 arranged inside the compressor M. As shown in Figure 5A and Figure 5B , the compressor M comprises a compressor motor 10 and a temperature sensing automatic switch 16 arranged inside the compressor M, which comprises an insulating shell 161, a sealed inner shell 162, a first pin 163, a second pin 164 and a thermosensitive elastic sheet 165. The insulating shell 12 is wrapped outside the sealed inner shell 13. The first pin contact point 166 of the first pin 163, the second pin contact point 167 of the first pin 163, the pin contact point 168 of the second pin 164 and the thermosensitive elastic sheet 165 are arranged in the sealed inner shell 13 to isolate the first pin contact point 166 of the first pin 163, the second pin contact point 167 of the first pin 163, the pin contact point 168 of the second pin 164 and the thermosensitive elastic sheet 165 from the external environment.
[0003] The first pin contact point 166 of the first pin 163 is connected and conducted with the second pin contact point 167 through the sealed inner shell 13. One end of the thermosensitive elastic sheet 165 is fixedly connected with the second pin contact point 167 of the first pin 163, and the other end of the thermosensitive elastic sheet 165 is contactively connected with the pin contact point 168 of the second pin 164. The first pin 163 and the second pin 164 are connected and conducted through the thermosensitive elastic sheet 165. Accordingly, the current of the power supply P can flow into the compressor M to start the operation of the compressor M.
[0004] As mentioned above, when the compressor M is arranged in the room, the accumulated dust can easily cause the overheating problem of the compressor M. When the compressor M is overheated, the thermosensitive elastic sheet 165 inside the compressor M will be deformed and bent when heated. Since one end of the thermosensitive elastic sheet 165 is fixedly connected with the second pin contact point 167 of the first pin 163, when the other end of the thermosensitive elastic sheet 165 is bent due to the heat, it will jump off the pin contact point 168 of the second pin 164, so that the thermosensitive elastic sheet 165 and the second pin 164 form a break, further causing the first pin 163 and the second pin 164 to form a break.
[0005] When the compressor M is cooled, the thermal sensitive spring 165 will reconnect to the pin contact 168 of the second pin 164, at this time the power supply P supplies the current to the compressor M to restart the compressor M. However, in the case of the compressor M repeatedly overheating and cooling, the compressor M will be repeatedly started and stopped, which will easily cause the compressor M to malfunction.
[0006] Accordingly, how to provide a compressor temperature protection system to improve the above problems has become a pressing research topic. SUMMARY
[0007] In view of the above problems, the present application discloses a compressor temperature protection module, which is characterized by comprising a temperature sensing automatic switch and a temperature sensing passive switch (Manual Reset and One-Shot Thermostats). The temperature sensing automatic switch is arranged in a compressor to sense the temperature of the compressor and is connected to a control switch of a control module. The temperature sensing passive switch is arranged on the compressor to sense the temperature of the compressor and is connected between a rectifier module and a processing module; wherein the rectifier module is connected to a power supply to adjust the voltage of the power supply to generate a voltage signal to the processing module, so that the processing module receives and processes the voltage signal, and the control module connected to the processing module generates a control signal to the control switch according to the voltage signal, so that the control switch receives and opens or closes according to the control signal; wherein when the temperature sensing passive switch and the temperature sensing automatic switch sense the temperature of the compressor greater than the default value, the temperature sensing automatic switch disconnects the control switch of the control module, and the temperature sensing passive switch disconnects the rectifier module and the processing module; wherein when the temperature sensing automatic switch disconnects the control switch of the control module and the temperature sensing passive switch disconnects the rectifier module and the processing module, and the temperature of the compressor is less than the default value, the temperature sensing automatic switch is electrically connected to the control switch of the control module.
[0008] The present application further discloses a compressor temperature protection system, which comprises a rectifier module, a temperature sensing passive switch, a processing module, a control module, a control switch and a temperature sensing automatic switch. The rectifier module is connected to a first end of a power supply to modulate the voltage of the power supply and generate a voltage signal. The temperature sensing passive switch is arranged on the compressor to sense the temperature of the compressor and has a first pin and a second pin, wherein the first pin is connected to the rectifier module. The processing module is connected to the second pin of the temperature sensing passive switch to receive and process the voltage signal. The control module is connected to the processing module to generate a control signal according to the voltage signal. The control switch is connected to the control module and a second end of the power supply to receive and turn on or off according to the control signal. The temperature sensing automatic switch is arranged in the compressor to sense the temperature of the compressor and is connected to the control switch; wherein when the temperature sensing passive switch and the temperature sensing automatic switch sense that the temperature of the compressor is greater than a default value, the temperature sensing automatic switch disconnects the control switch of the control module, and the temperature sensing passive switch disconnects the rectifier module and the processing module; wherein when the temperature sensing automatic switch disconnects the control switch of the control module and the temperature sensing passive switch disconnects the rectifier module and the processing module, and the temperature of the compressor is less than the default value, the temperature sensing automatic switch is electrically connected to the control switch of the control module.
[0009] As described above, when the temperature of the compressor is too high, the temperature sensing passive switch is used to disconnect the electrical connection between the current supplier and the processing module in real time, so that the compressor stops working, thereby avoiding the temperature sensing automatic switch in the compressor from repeatedly turning on and off after being heated and cooled to cause damage to the compressor, and further prolonging the service life of the compressor. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 FIG. 1 is a block diagram of the compressor temperature protection system of the present application;
[0011] Figure 2 FIG. 5 is a block diagram of the rectifier module, the processing module, the control module and the control switch arranged on the circuit board of the present application;
[0012] Figure 3 FIG. 7 is a schematic diagram of the power supply connected to the circuit board and the compressor;
[0013] Figure 4 FIG. 9 is a block diagram of the compressor temperature protection module of the present application;
[0014] Figure 5A FIG. 11 is a circuit diagram of the conventional temperature sensing automatic switch arranged in the compressor; and
[0015] Figure 5B FIG. 13 is a structural cross-sectional schematic diagram of the conventional temperature sensing automatic switch. DETAILED DESCRIPTION
[0016] Referring to Figure 1 , and referring to Figure 5B , Figure 1 is a block diagram of a compressor temperature protection system. The compressor temperature protection system 1 comprises a rectifier module 11, a temperature sensing passive switch 12, a processing module 13, a control module 14, a control switch 15 and a temperature sensing automatic switch 16. The rectifier module 11 is connected to a first end of a power supply P, and modulates the voltage of the power supply P to generate a voltage signal. The temperature sensing passive switch 12 is disposed on a compressor M, and senses the temperature of the shell of the compressor M. The temperature sensing passive switch 12 has a first pin and a second pin, and the first pin is connected to the rectifier module 11. The processing module 13 is connected to the second pin of the temperature sensing passive switch 12, and receives and processes the voltage signal. The control module 14 is connected to the processing module 13, and generates a control signal according to the voltage signal. The control switch 15 is connected to the control module 14 and a second end of the power supply P, and receives and turns on or off according to the control signal. The temperature sensing automatic switch 16 is disposed in the compressor M, and senses the temperature of the compressor M. The temperature sensing automatic switch 16 is connected to the control switch 15 and a load L, and the load L is a compressor motor 10. When the temperature sensing passive switch 12 senses that the temperature of the shell of the compressor M is higher than a default value, or the temperature sensing automatic switch 16 senses that the temperature of the compressor M is greater than a default value of the temperature sensing automatic switch, or both, the temperature sensing automatic switch 16 disconnects the connection between the compressor and the power supply, that is, disconnects the connection between the temperature sensing automatic switch 16 and the control switch 15. The temperature sensing passive switch 12 disconnects the connection between the DC power supply on the circuit board B and the processing module 13, that is, disconnects the connection between the power supply P and the processing module 13, which is equivalent to disconnecting the connection between the rectifier module 11 and the processing module 13. When the temperature sensing automatic switch 16 disconnects the connection between the control switch 15 and the temperature sensing passive switch 12, and the temperature sensing passive switch 12 disconnects the connection between the rectifier module 11 and the processing module 13, and the temperature of the compressor M is less than or equal to the default value of the temperature sensing automatic switch, the temperature sensing automatic switch 16 is electrically connected to the control switch 15.
[0017] As mentioned above, although the temperature sensing automatic switch 16 is automatically electrically returned to connect to the control switch 15 when the temperature of the compressor M is less than or equal to the default value, since the temperature sensing passive switch 12 has not been returned, that is, the rectifier module 11 and the processing module 13 are still in an open circuit state, the control switch 15 connected at the rear end of the processing module 13 cannot receive the power supply P, so that the control switch 15 generates a closed control signal to the control switch 15, and thus the second end of the power supply P cannot be turned on to supply power to the compressor M through the control switch 15. At this time, by returning the temperature sensing passive switch 12 to connect the rectifier module 11 and the processing module 13, the processing module 13 can receive the power supply P, so that the control switch 15 connected at the rear end of the processing module 13 generates an open control signal to the control switch 15, and thus the first end of the power supply P is turned on to the compressor M through the rectifier module 11, the temperature sensing passive switch 12, the processing module 13, the control module 14 and the control switch 15, and the second end of the power supply P is turned on to the compressor M through the control switch 15.
[0018] Please refer to Figure 2 and Figure 3 , and refer to Figure 1 , Figure 1 and Figure 2 The rectifier module 11, the processing module 13, the control module 14 and the control switch 15 of the present application are shown in the block diagram of the circuit board B, wherein Figure 2 Further comprising an operation module S, Figure 3 is a schematic diagram of the power supply P connecting the circuit board B and the compressor M. In the embodiment of the present application, the rectifier module 11, the processing module 13, the control module 14 and the control switch 15 are arranged on a circuit board B, which comprises an operation module S arranged between the temperature sensing passive switch 12 and the rectifier module 11. When the temperature sensing passive switch 12 disconnects the connection between the rectifier module 11 and the processing module 13, the voltage of the power supply P is transmitted to the temperature sensing passive switch 12 through the rectifier module 11 and the operation module S by resetting the operation module S. In addition, the subsequent temperature sensing passive switch 12 also needs to be returned to reconnect the operation module S and the processing module 13, so that the processing module 13 receives the voltage of the power supply P, generates a control signal to the control module 14, and the control module 14 generates an open signal to the control switch 16. At this time, after the temperature sensing automatic switch 16 is returned to reconnect the open control switch 15, the power supply P is turned on to supply power to the compressor M, and the compressor M resumes operation. The operation process of the temperature sensing passive switch 12 and the temperature sensing automatic switch 16 is as described above, and will not be described here.
[0019] In the embodiment of the present application, the temperature sensing passive switch 12 comprises a manual reset mechanical switch. The manual reset mechanical switch is reset to the position electrically connecting the rectifier module 11 and the processing module 13 by pulling the mechanical switch on the manual reset mechanical switch. In the embodiment of the present application, the manual reset mechanical switch comprises various types, including manual reset and one-shot thermostats, which can switch according to different temperature default values.
[0020] In the embodiment of the present application, the structure of the temperature sensing automatic switch 16 is as described in the prior art, which will not be described here. However, it is different from the prior art that when the temperature of the compressor M is greater than the default value, the other end of the heat-sensitive elastic sheet 165 is disconnected from the pin contact 168 of the second pin 164 when it is bent by heat, which forms a disconnection between the heat-sensitive elastic sheet 165 and the second pin 164, further forms a disconnection between the first pin 163 and the second pin 164, and at the same time, forms a disconnection between the temperature sensing automatic switch 16 and the control switch 15. When the other end of the heat-sensitive elastic sheet 165 is disconnected from the pin contact 168 of the second pin 164, and after the compressor M cools down, the temperature is less than the default value, the other end of the heat-sensitive elastic sheet 165 automatically returns to contact and connect with the pin contact 168 of the second pin 164, wherein the first pin 163 is connected to the load L, and the second pin 164 is connected to the control switch 15.
[0021] Please refer to Figure 4 which is a block diagram of the compressor temperature protection module of the present application. The compressor temperature protection module 2 comprises a temperature sensing automatic switch 16 and a temperature sensing passive switch 12. The temperature sensing automatic switch 16 is arranged in the compressor M to sense the temperature of the compressor M, and is connected to the control switch 15 of the control module 14. The temperature sensing passive switch 12 is arranged on the compressor M to sense the temperature of the shell of the compressor M, and is connected between the rectifier module 11 and the processing module 13. In the embodiment of the present application, the temperature sensing passive switch 12 comprises a manual reset mechanical switch. Figure 4Further, the temperature sensing automatic switch 16 is further connected between the rectifier module 11 and the temperature sensing passive switch 12 through the operation module S. The rectifier module 11 is connected to the power supply P to adjust the voltage of the power supply P, and generates a voltage signal to the processing module 13 through the operation module S and the temperature sensing passive switch 12, so that the processing module 13 receives and processes the voltage signal, and the control module 14 connected to the processing module 13 generates a control signal to the control switch 16 according to the voltage signal, so that the control switch 16 receives and opens or closes according to the control signal. When the temperature sensing automatic switch 16 senses that the temperature of the compressor M is greater than the default value of the temperature sensing automatic switch, the temperature sensing automatic switch 16 is disconnected from the power supply of the compressor. When the temperature sensing passive switch 12 senses that the temperature of the compressor M is higher than the default value, the temperature sensing passive switch 12 disconnects the direct current power supply on the circuit board B from the processing module 13, that is, disconnects the connection between the power supply P and the processing module 13, which is equivalent to disconnecting the connection between the rectifier module 11 and the processing module 13. When the temperature sensing automatic switch 16 is disconnected from the control switch 15, and the temperature sensing passive switch 12 is disconnected from the rectifier module 11 and the processing module 13, and the temperature of the compressor M is less than or equal to the default value, the temperature sensing automatic switch 16 is electrically connected to the control switch 15, and through the reset operation module S, the voltage of the power supply P is transmitted to the temperature sensing passive switch 12 through the rectifier module 11 and the operation module S, and the temperature sensing passive switch 12 is reset, so that the operation module S and the processing module 13 are reconnected, the processing module 13 receives the voltage of the power supply P, generates a control signal to the control module 14, so that the control module 14 generates an opening signal to the control switch 16. At this time, after the temperature sensing automatic switch 16 is reset and reconnected to the opened control switch 15, the power supply P is turned on to supply power to the compressor M, and the compressor M resumes operation. The operation principle of the temperature sensing automatic switch 16 and the temperature sensing passive switch 12 is described above, and will not be described here.
[0022] In summary, when the temperature of the compressor is too high, the temperature sensing passive switch disconnects the electrical connection between the current supplier and the processing module in real time, so that the compressor stops working, to avoid the temperature sensing automatic switch in the compressor repeatedly opening and closing after heating and cooling, causing damage to the compressor, to further prolong the service life of the compressor, and can be widely applied to various refrigerators, dehumidifiers and other products with alternating current compressors.
[0023] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with the preferred embodiments as above, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical contents to obtain equivalent embodiments with equivalent changes, as long as the changes or modifications do not depart from the technical solution of the present application. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still belong to the scope of the technical solution of the present application.
Claims
1. A compressor temperature protection module, characterized by, The temperature sensing automatic switch is arranged in a compressor, senses a temperature of the compressor, and is connected to a control switch of a control module. The temperature sensing passive switch is arranged on the compressor, senses a temperature of the compressor, and is connected between a rectifier module and a processing module; wherein the rectifier module is connected to a power supply, adjusts a voltage of the power supply to generate a voltage signal to the processing module, so that the processing module receives and processes the voltage signal, and the control module connected to the processing module generates a control signal to the control switch according to the voltage signal, so that the control switch receives and opens or closes according to the control signal; When the temperature sensing passive switch and the temperature sensing automatic switch sense that the temperature of the compressor is greater than a default value, the temperature sensing automatic switch disconnects the control switch of the control module, and the temperature sensing passive switch disconnects the rectifier module and the processing module. When the temperature sensing automatic switch disconnects the control switch of the control module, and the temperature sensing passive switch disconnects the rectifier module and the processing module, and the temperature of the compressor is less than the default value, the temperature sensing automatic switch is electrically connected to the control switch of the control module. The temperature sensing passive switch includes a manual reset mechanical switch. The temperature sensing automatic switch includes an insulating shell, a sealed inner shell, a first pin, a second pin, and a thermosensitive elastic sheet. The insulating shell covers the sealed inner shell. A first pin contact of the first pin, a second pin contact of the first pin, a pin contact of the second pin, and the thermosensitive elastic sheet are arranged in the sealed inner shell. The first pin contact is connected and conducted with the second pin contact through the sealed inner shell. One end of the thermosensitive elastic sheet is fixedly connected with the second pin contact of the first pin, and the other end of the thermosensitive elastic sheet is contactingly connected with the pin contact of the second pin. The first pin is connected and conducted with the second pin through the thermosensitive elastic sheet.
2. The compressor temperature protection module of claim 1, wherein: When the temperature of the compressor is greater than the default value, the other end of the thermosensitive elastic sheet is disconnected with the pin contact of the second pin.
3. The compressor temperature protection module of claim 1, wherein: When the other end of the thermosensitive elastic sheet is disconnected with the pin contact of the second pin, and the temperature of the compressor is less than the default value, the other end of the thermosensitive elastic sheet is automatically reset to contact with the pin contact of the second pin. The first pin is connected to a load, and the second pin is connected to the control switch. The rectifier module is connected to a first end of a power supply, adjusts a voltage of the power supply to generate a voltage signal. The temperature sensing passive switch is arranged on a compressor, senses a temperature of the compressor, has a first pin and a second pin, and the first pin is connected to the rectifier module.
4. A compressor temperature protection system characterized by, The processing module is connected to the second pin of the temperature sensing passive switch, receives and processes the voltage signal. a control module connected to the processing module, generating a control signal according to the voltage signal; a control switch connected to the control module and a second terminal of the power supply, receiving and turning on or off according to the control signal; and a temperature sensing automatic switch arranged in the compressor, sensing the temperature of the compressor, and connected to the control switch; wherein when the temperature sensing passive switch and the temperature sensing automatic switch sense that the temperature of the compressor is greater than a default value, the temperature sensing automatic switch disconnects the control switch of the control module, and the temperature sensing passive switch disconnects the rectifier module and the processing module; wherein after the temperature sensing automatic switch disconnects the control switch of the control module, and the temperature sensing passive switch disconnects the rectifier module and the processing module, and when the temperature of the compressor is less than the default value, the temperature sensing automatic switch electrically connects the control switch of the control module.
5. The compressor temperature protection system of claim 4, wherein: The temperature sensing passive switch comprises a manual reset mechanical switch.
6. The compressor temperature protection system of claim 4, wherein: The temperature sensing automatic switch comprises an insulating shell, a sealed inner shell, a first pin, a second pin and a thermosensitive elastic sheet, the insulating shell is wrapped outside the sealed inner shell, a first pin contact of the first pin, a second pin contact of the first pin, a pin contact of the second pin and the thermosensitive elastic sheet are arranged in the sealed inner shell, and the first pin contact is connected and conducted with the second pin contact through the sealed inner shell, one end of the thermosensitive elastic sheet is fixedly connected with the second pin contact of the first pin, the other end of the thermosensitive elastic sheet is contactingly connected with the pin contact of the second pin, and the first pin is connected and conducted with the second pin through the thermosensitive elastic sheet; wherein when the temperature of the compressor is greater than the default value, the other end of the thermosensitive elastic sheet is disconnected with the pin contact of the second pin; wherein after the other end of the thermosensitive elastic sheet is disconnected with the pin contact of the second pin, and when the temperature of the compressor is less than the default value, the other end of the thermosensitive elastic sheet is automatically reset and contactingly connected with the pin contact of the second pin; wherein the first pin is connected with a load, and the second pin is connected with the control switch.
7. The compressor temperature protection system of claim 4, wherein: The rectifier module, the processing module, the control module and the control switch are arranged on a circuit board.
8. The compressor temperature protection system of claim 7, wherein: The circuit board comprises an operation module arranged between the power supply and the rectifier module; wherein after the temperature sensing passive switch disconnects the rectifier module and the processing module, the voltage of the power supply is transmitted to the rectifier module by resetting the operation module.