Freezing dryer driving device and freezing dryer driver

Abstract

The utility model provides a refrigeration dryer driving device and a refrigeration dryer driver. The device comprises a circuit board, and a power supply access port, a three-phase compressor driving module, a three-phase cooler driving module, a drain valve driving module, an anti-freezing bypass valve driving module, an operation signal output module, an alarm signal output module and a data interaction interface which are integrated on the circuit board, the power supply access port is respectively connected with contact switch input ends of the three-phase compressor driving module, the three-phase cooler driving module, the drain valve driving module and the anti-freezing bypass valve driving module; the data interaction interface is respectively connected with controlled ends of the three-phase compressor driving module, the three-phase cooler driving module, the drain valve driving module, the anti-freezing bypass valve driving module, the operation signal output module and the alarm signal output module. The refrigeration dryer driving integrated structure is achieved, installation is convenient in practical application, and fault points are easy to position.

Description

Technical Field

[0001] This utility model relates to the field of refrigerated air dryer technology, and in particular to a refrigerated air dryer drive device and a refrigerated air dryer driver. Background Art

[0002] With global resources becoming increasingly scarce, compressed air has become a widely used power source across various industries, and various compressed air purification devices have emerged. Refrigerated dryers are key equipment for purifying compressed air.

[0003] Currently, the control components for refrigerated dryers are typically assembled from devices such as air switches, AC contactors, thermal overload relays, three-phase power detection modules, and controllers. The large number of components and complex wiring make assembly time-consuming and prone to errors. Furthermore, malfunctions are likely to occur during subsequent use, and it is difficult to locate the fault points, resulting in significant maintenance challenges. Utility Model Content

[0004] This utility model provides a refrigerated dryer drive device and a refrigerated dryer driver. By integrating the three-phase compressor drive module, the three-phase cooler drive module, the drain valve drive module, the antifreeze bypass valve drive module, the operation signal output module, and the alarm signal output module onto a single circuit board, an integrated refrigerated dryer drive structure is formed. This structure is convenient to install in practical applications and makes it easy to locate fault points.

[0005] To solve the above-mentioned technical problems, the first aspect of the present invention provides a refrigerated dryer drive device, including a circuit board and a power input port, a three-phase compressor drive module, a three-phase cooler drive module, a drain valve drive module, an antifreeze bypass valve drive module, an operation signal output module, an alarm signal output module, and a data interaction interface integrated on the circuit board.

[0006] The power input port is connected to the contact switch input terminal of the three-phase compressor drive module, the contact switch input terminal of the three-phase cooler drive module, the contact switch input terminal of the drain valve drive module, and the contact switch input terminal of the antifreeze bypass valve drive module, respectively.

[0007] The data interaction interface is connected to the controlled terminal of the three-phase compressor drive module, the controlled terminal of the three-phase cooler drive module, the controlled terminal of the drain valve drive module, the controlled terminal of the antifreeze bypass valve drive module, the controlled terminal of the operation signal output module, and the controlled terminal of the alarm signal output module.

[0008] As a preferred embodiment, the three-phase compressor drive module includes a three-phase compressor drive port and three compressor drive relays;

[0009] The power input port is connected to the input terminals of the contact switches of the three compressor drive relays via a double jumper connection. The output terminals of the contact switches of the three compressor drive relays are connected to the three-phase compressor drive port. The data interaction interface is connected to the controlled terminals of the three compressor drive relays. The double jumper connection method includes using two parallel jumpers and using two overlapping jumpers.

[0010] As a preferred embodiment, the three-phase cooler drive module includes a three-phase cooler drive port and three cooler drive relays;

[0011] The power input port is connected to the contact switch input terminals of the three cooler drive relays via a double jumper connection. The contact switch output terminals of the three cooler drive relays are connected to the three-phase cooler drive port. The data interaction interface is connected to the controlled terminals of the three cooler drive relays. The double jumper connection method includes using two parallel jumpers and using two overlapping jumpers.

[0012] As a preferred embodiment, the drain valve drive module includes a drain valve drive port and a drain valve drive relay; the power input port is connected to the contact switch input terminal of the drain valve drive relay, the contact switch output terminal of the drain valve drive relay is connected to the drain valve drive port, and the data interaction interface is connected to the controlled terminal of the drain valve drive relay.

[0013] The antifreeze bypass valve drive module includes an antifreeze bypass valve drive port and an antifreeze bypass valve drive relay; the power input port is connected to the contact switch input terminal of the antifreeze bypass valve drive relay, the contact switch output terminal of the antifreeze bypass valve drive relay is connected to the antifreeze bypass valve drive port, and the data interaction interface is connected to the controlled terminal of the antifreeze bypass valve drive relay.

[0014] The operation signal output module includes an operation signal output port and an operation signal output drive relay; the data interaction interface is connected to the controlled end of the operation signal output drive relay, and the output end of the operation signal output drive relay is connected to the operation signal output port;

[0015] The alarm signal output module includes an alarm signal output port and an alarm drive relay; the data interaction interface is connected to the controlled end of the alarm drive relay, and the output end of the alarm drive relay is connected to the alarm signal output port.

[0016] As a preferred embodiment, the device further includes a current transformer and a current detection module integrated on the circuit board; the current transformer is connected between the compressor drive relay and the three-phase compressor drive port, and the output terminal of the current transformer is connected to the input terminal of the current detection module, and the signal output terminal of the current detection module is connected to the data interaction interface.

[0017] As a preferred embodiment, the device further includes a three-phase power detection module; the input terminal of the three-phase power detection module is connected to the power input port, and the signal output terminal of the three-phase power detection module is connected to the data interaction interface.

[0018] As a preferred embodiment, the device further includes a digital input module and a digital detection module integrated on the circuit board; the output terminal of the digital input module is connected to the input terminal of the digital detection module, and the signal output terminal of the digital detection module is connected to the data interaction interface.

[0019] As a preferred embodiment, the device further includes a buzzer and a fuse integrated on the circuit board; the data interaction interface is connected to the controlled end of the buzzer.

[0020] As a preferred embodiment, the device further includes a transformer power supply port, a power input port, and a power processing module integrated on the circuit board; the power input port is connected to the transformer power supply port, which is used to supply power to an external transformer; the power input port is used to receive the step-down voltage of the transformer; the input terminal of the power processing module is connected to the power input port, and the output terminal of the power processing module is connected to the power receiving terminals of the three-phase compressor drive module, the three-phase cooler drive module, the drain valve drive module, the antifreeze bypass valve drive module, the running signal output module, the alarm signal output module, the current detection module, the three-phase power detection module, the switch quantity detection module, and the buzzer.

[0021] A second aspect of this utility model provides a refrigerated air dryer driver, including a processor, a display module, and a refrigerated air dryer driving device as described in any of the first aspects; the processor is connected to the data interaction interface of the refrigerated air dryer driving device via a data cable, the processor is connected to the display module, and the processor has a temperature sensor interface and a communication interface.

[0022] Compared with the prior art, the beneficial effect of this utility model embodiment is that by integrating the three-phase compressor drive module, the three-phase cooler drive module, the drain valve drive module, the antifreeze bypass valve drive module, the operation signal output module and the alarm signal output module onto a single circuit board, an integrated structure for the refrigerated dryer drive is formed. This makes installation convenient in practical applications and facilitates the location of fault points. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the refrigerated dryer drive device in an embodiment of this utility model;

[0024] Figure 2 This is a top view of the refrigerated dryer drive device in an embodiment of this utility model;

[0025] Figure 3 This is a structural schematic diagram of a dual jumper connection method provided by this utility model;

[0026] Figure 4 This is a schematic diagram of another dual-jump wire connection method provided by this utility model;

[0027] The components include: 1. Circuit board; 2. Power input port; 3. Jumper; 4. Compressor drive relay; 5. Three-phase compressor drive port; 6. Cooler drive relay; 7. Three-phase cooler drive port; 8. Drain valve drive relay; 9. Anti-freeze bypass valve drive relay; 10. Operation signal output drive relay; 11. Alarm drive relay; 12. Power input port; 13. Current transformer; 14. Three-phase power detection module; 15. Switch quantity detection module; 16. Current detection module; 17. Power processing module; 18. Buzzer; 19. Fuse; 20. Switch quantity input module; 21. Data interaction interface; 22. Drain valve and anti-freeze bypass valve drive port; 23. Operation signal output port; 24. Alarm signal output port; 25. Transformer power supply port. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] See Figure 1 and Figure 2The first aspect of this utility model provides a refrigerated dryer drive device, including a circuit board 1 and a power input port 2, a three-phase compressor drive module, a three-phase cooler drive module, a drain valve drive module, an antifreeze bypass valve drive module, an operation signal output module, an alarm signal output module, and a data interaction interface 21 integrated on the circuit board 1.

[0030] The power input port 2 is connected to the contact switch input terminal of the three-phase compressor drive module, the contact switch input terminal of the three-phase cooler drive module, the contact switch input terminal of the drain valve drive module, and the contact switch input terminal of the antifreeze bypass valve drive module, respectively.

[0031] The data interaction interface 21 is connected to the controlled terminal of the three-phase compressor drive module, the controlled terminal of the three-phase cooler drive module, the controlled terminal of the drain valve drive module, the controlled terminal of the antifreeze bypass valve drive module, the controlled terminal of the operation signal output module, and the controlled terminal of the alarm signal output module.

[0032] It is worth noting that the power input port 2 in this embodiment is used to connect to an external three-phase power supply. It is connected to the contact switch input terminals of the three-phase compressor drive module, the three-phase cooler drive module, the drain valve drive module, and the antifreeze bypass valve drive module, respectively, to ensure that the three-phase compressor, three-phase cooling fan or three-phase cooling pump, drain valve, and antifreeze bypass valve in the refrigerated dryer can be driven. Furthermore, the data interaction interface 21 in this embodiment is used to connect a processor that controls each relay. To facilitate user operation and information display, the signal transmission terminal on the processor is also connected to a display module, such as an LCD screen, liquid crystal display, or touch screen. This embodiment does not specify a particular display module. Specifically, the processor can be connected to an external temperature sensor to detect the intake temperature of the compressed air, the condensing temperature of the condenser, and the evaporating temperature of the evaporator during actual operation. After the processor powers on and a preset delay time has elapsed, it controls the contact switch of the three-phase compressor drive module to close, thereby starting the three-phase compressor in the refrigerated dryer. When the detected condensation temperature reaches a preset temperature threshold, it controls the contact switch of the three-phase cooler drive module to close, thereby starting the three-phase cooling fan or three-phase cooling pump in the refrigerated dryer. For the drain valve, a timed opening time can be set. That is, after the processor powers on and a preset timed opening time has elapsed, it controls the contact switch of the drain valve drive module to close, thereby starting the drain valve in the refrigerated dryer. When the detected evaporation temperature reaches a preset temperature threshold, it controls the contact switch of the antifreeze bypass valve drive module to close, thereby starting the antifreeze bypass valve in the refrigerated dryer to prevent freezing due to excessively low temperatures. In addition, when the processor is powered on, it controls the contact switch of the operation signal output module to close, so as to output an operation signal indicating that the current refrigerated dryer drive unit is in operation. If a fault is detected during operation, the processor will display the specific fault information on the display and control the contact switch of the alarm signal output module to close, so as to output an alarm signal indicating that the current refrigerated dryer drive unit is in a fault state.

[0033] This embodiment uses an integrated refrigerated dryer drive unit to replace the traditional assembly structure of components such as air switches, AC contactors, thermal overload relays, three-phase power detection modules, and controllers. This makes installation very convenient for users and reduces the risk of malfunctions due to assembly errors. Furthermore, even if malfunctions occur during later use, they can be quickly resolved by direct replacement.

[0034] As a preferred embodiment, the three-phase compressor drive module includes a three-phase compressor drive port 5 and three compressor drive relays 4;

[0035] The power input port 2 is connected to the input terminals of the contact switches of the three compressor drive relays 4 via a double jumper 3 connection. The output terminals of the contact switches of the three compressor drive relays 4 are connected to the three-phase compressor drive port 5. The data interaction interface 21 is connected to the controlled terminals of the three compressor drive relays 4. The double jumper 3 connection method includes using two parallel jumpers 3 and using two overlapping jumpers 3.

[0036] Specifically, this embodiment uses three high-power compressor drive relays 4 to directly drive the three-phase compressor in the refrigerated dryer. One compressor drive relay 4 controls one live wire connected to the power input port 2. The synchronous operation of the three compressor drive relays 4 achieves control of the three-phase compressor. Different current load compressor drive relays 4 are used according to the actual power of the three-phase compressor. It is worth noting that traditional circuit board wiring requires a large area of ​​trace to handle larger currents, meaning a larger circuit board size is needed. For example, to handle 25A of current, the circuit board needs traces approximately 25mm wide to safely carry such a large current, resulting in a very large circuit board area. To handle even larger currents, such as 50A, an even larger circuit board area is required, which is unreasonable in practical use. Therefore, traditional wiring methods cannot handle large currents in small-area circuit boards. This embodiment effectively solves the problem of needing to carry large currents by using jumper wire 3. A single 6 square millimeter wire can safely carry a current of about 25A. However, to safely carry a current of 50A or greater, if a single jumper wire 3 is still used, a wire of more than 10 square millimeters is required, which is not conducive to production and processing. Therefore, this embodiment, without changing the area of ​​the circuit board 1, doubles the current carrying capacity by using a double jumper wire 3 design. For example, two 6 square millimeter wires can easily carry a current of about 50A without affecting production and processing, and effectively solve the problem of needing to drive with large currents. Specifically, as follows... Figure 3 and Figure 4 As shown, in this embodiment, the connection methods of the double jumper 3 include connecting with two parallel jumper 3s and connecting with two overlapping jumper 3s. For the output terminal of the compressor drive relay 4, since this is a large current load, it can be connected to the three-phase compressor drive port 5 via jumper 3 to ensure effective driving of the three-phase compressor. For the power input port 2, which simultaneously carries the drive current of the three-phase compressor and the three-phase cooling fan or three-phase cooling pump, a double jumper 3 connection is required to carry a sufficiently large current.

[0037] In one optional embodiment, the compressor drive relay 4 may be a relay of model HF165F-50. Of course, other high-power relays may also be used, but this embodiment does not make specific limitations.

[0038] As a preferred embodiment, the three-phase cooler drive module includes a three-phase cooler drive port 7 and three cooler drive relays 6;

[0039] The power input port 2 is connected to the contact switch input terminals of the three cooler drive relays 6 via a double jumper 3 connection method. The contact switch output terminals of the three cooler drive relays 6 are connected to the three-phase cooler drive port 7. The data interaction interface 21 is connected to the controlled terminals of the three cooler drive relays 6. The double jumper 3 connection method includes using two parallel jumpers 3 and using two overlapping jumpers 3.

[0040] Specifically, this embodiment uses three high-power cooler drive relays 6 to directly drive the three-phase cooling fan or three-phase cooling pump in the refrigerated dryer. One cooler drive relay 6 controls one live wire connected from the power input port 2. The synchronous operation of the three cooler drive relays 6 achieves control of the three-phase cooling fan or three-phase cooling pump. Cooler drive relays 6 with different current loads are used according to the actual power of the three-phase cooling fan or three-phase cooling pump. For the output terminal of the cooler drive relay 6, since it is a large current load, it can be connected to the three-phase cooler drive port 7 through jumper 3 to ensure effective driving of the three-phase cooling fan or three-phase cooling pump.

[0041] In one optional embodiment, the cooler drive relay 6 may be a relay of model JQX-102F-P. Of course, other high-power relays may also be used, but this embodiment does not make specific limitations.

[0042] As a preferred embodiment, the drain valve drive module includes a drain valve drive port and a drain valve drive relay 8; the power input port 2 is connected to the contact switch input terminal of the drain valve drive relay 8, the contact switch output terminal of the drain valve drive relay 8 is connected to the drain valve drive port, and the data interaction interface 21 is connected to the controlled terminal of the drain valve drive relay 8.

[0043] The antifreeze bypass valve drive module includes an antifreeze bypass valve drive port and an antifreeze bypass valve drive relay 9; the power input port 2 is connected to the contact switch input terminal of the antifreeze bypass valve drive relay 9, the contact switch output terminal of the antifreeze bypass valve drive relay 9 is connected to the antifreeze bypass valve drive port, and the data interaction interface 21 is connected to the controlled terminal of the antifreeze bypass valve drive relay 9.

[0044] The operation signal output module includes an operation signal output port 23 and an operation signal output drive relay 10; the data interaction interface 21 is connected to the controlled end of the operation signal output drive relay 10, and the output end of the operation signal output drive relay 10 is connected to the operation signal output port 23.

[0045] The alarm signal output module includes an alarm signal output port 24 and an alarm drive relay 11; the data interaction interface 21 is connected to the controlled end of the alarm drive relay 11, and the output end of the alarm drive relay 11 is connected to the alarm signal output port 24.

[0046] In one optional embodiment, the drain valve drive relay 8, the antifreeze bypass valve drive relay 9, the operation signal output drive relay 10, and the alarm drive relay 11 can all be relays of model HF32FV-G. Of course, other relays can also be used, and this embodiment does not make specific limitations here.

[0047] Furthermore, the drain valve drive port and the antifreeze bypass valve drive port can be integrated into a single drive port, such as... Figure 2 The drain valve and antifreeze bypass valve drive port 22 are shown in the figure.

[0048] As a preferred embodiment, the device further includes a current transformer 13 and a current detection module 16 integrated on the circuit board 1; the current transformer 13 is connected between the compressor drive relay 4 and the three-phase compressor drive port 5, and the output terminal of the current transformer 13 is connected to the input terminal of the current detection module 16, and the signal output terminal of the current detection module 16 is connected to the data interaction interface 21.

[0049] It is worth noting that in this embodiment, a current transformer 13 is connected between the compressor drive relay 4 and the three-phase compressor drive port 5. When the three-phase compressor is working, the wire passing through the current transformer 13 will generate current. After the current transformer 13 senses the current, it converts it into voltage and then transmits it to the current detection module 16 for processing to detect whether the working current of the three-phase compressor is normal. The detection signal is finally transmitted to the processor plugged into the data interaction interface 21 for judgment and processing. The normal operation of the three-phase compressor is protected by judging the magnitude of the working current of the three-phase compressor.

[0050] As a preferred embodiment, the device further includes a three-phase power detection module 14; the input terminal of the three-phase power detection module 14 is connected to the power input port 2, and the signal output terminal of the three-phase power detection module 14 is connected to the data interaction interface 21.

[0051] It is worth noting that the three-phase power detection module 14 in this embodiment is used to detect whether there is a phase loss or reverse direction in the three-phase power supply, and sends the detection result to the processor plugged into the data interaction interface 21 for processing. If there is a phase loss or reverse direction, the processor will send a signal to stop the entire device and can control the alarm signal output module to output an alarm signal.

[0052] As a preferred embodiment, the device further includes a digital input module 20 and a digital detection module 15 integrated on the circuit board 1; the output terminal of the digital input module 20 is connected to the input terminal of the digital detection module 15, and the signal output terminal of the digital detection module 15 is connected to the data interaction interface 21.

[0053] It is worth noting that the switch input module 20 is used to receive external switch signals and transmit them to the switch detection module 15 for detection to determine whether the received external switch signal is normal. Then, the detection result is sent to the processor plugged into the data interaction interface 21 for processing. If the external switch signal is abnormal, the processor will take corresponding actions on the computer board and can control the alarm signal output module to output an alarm signal.

[0054] As a preferred embodiment, the device further includes a buzzer 18 and a fuse 19 integrated on the circuit board 1; the data interaction interface 21 is connected to the controlled end of the buzzer 18.

[0055] Specifically, this embodiment includes a buzzer 18. When the user inputs control commands via the buttons on the display screen or the touchscreen, the processor can control the buzzer 18 to emit a button sound. Furthermore, when a fault is detected, the processor can also control the buzzer 18 to emit an alarm sound. For example, by controlling the buzzer 18 to emit intermittent sounds, it indicates a fault in the refrigerated dryer drive unit. The fuse 19 is used to protect against extreme situations of the three-phase power supply. For example, it will momentarily disconnect when a short circuit occurs in the three-phase power supply to protect the circuit board 1 from being burned out.

[0056] As a preferred embodiment, the device further includes a transformer power supply port 25, a power input port 12, and a power processing module 17 integrated on the circuit board 1; the power input port 2 is connected to the transformer power supply port 25, which is used to supply power to an external transformer; the power input port 2 is used to receive the step-down voltage of the transformer; the input terminal of the power processing module 17 is connected to the power input port 2, and the output terminal of the power processing module 17 is connected to the power receiving terminals of the three-phase compressor drive module, the three-phase cooler drive module, the drain valve drive module, the antifreeze bypass valve drive module, the running signal output module, the alarm signal output module, the current detection module 16, the three-phase power detection module 14, the switch quantity detection module 15, and the buzzer 18.

[0057] Specifically, in this embodiment, by setting a transformer power supply port 25, a 380V voltage can be output to supply power to an external transformer. The transformer then steps down the 380V voltage to a low 12V voltage and connects it to the power input port 12. Since the voltage provided by the transformer is AC voltage, the power processing module 17 needs to convert the 12V AC voltage connected to the power input port 12 into a 12V, 5V, or 3.3V DC voltage, and supply power to the three compressor drive relays 4 in the three-phase compressor drive module, the three cooler drive relays 6 in the three-phase cooler drive module, the drain valve drive relay 8 in the drain valve drive module, the antifreeze bypass valve drive relay 9 in the antifreeze bypass valve drive module, the operation signal output drive relay 10 in the operation signal output module, the alarm drive relay 11 in the alarm signal output module, the current detection module 16, the three-phase power detection module 14, the switch quantity detection module 15, and the buzzer 18 integrated on the circuit board 1.

[0058] In one alternative embodiment, the circuit board 1 also integrates several electrolytic capacitors to filter the 12V, 5V or 3.3V DC voltage output by the power processing module 17.

[0059] A second aspect of this utility model provides a refrigerated air dryer driver, including a processor, a display module, and a refrigerated air dryer driving device as described in any embodiment of the first aspect; the processor is connected to the data interaction interface 21 of the refrigerated air dryer driving device via a data cable, the processor is connected to the display module, and the processor has a temperature sensor interface and a communication interface.

[0060] Specifically, the processor in this embodiment has a communication interface, such as an RS485 (Modbus RTU) communication interface, which is used to connect to an external host computer. The host computer can monitor the status of the refrigerated dryer in real time and perform control operations on the refrigerated dryer, such as controlling the refrigerated dryer to turn on and off, and setting the parameters of the refrigerated dryer, thereby realizing remote control of the refrigerated dryer.

[0061] In addition, the output terminal of the power processing module 17 in the refrigerated dryer drive device is also connected to the power receiving terminal of the display module to power the display module with the converted 12V, 5V or 3.3V DC voltage.

[0062] The refrigerated dryer drive device and refrigerated dryer driver provided in this embodiment integrate the three-phase compressor drive module, the three-phase cooler drive module, the drain valve drive module, the antifreeze bypass valve drive module, the operation signal output module and the alarm signal output module on a single circuit board 1, thereby forming an integrated refrigerated dryer drive structure. This structure is convenient to install in practical applications and makes it easy to locate fault points.

[0063] The above description is the preferred embodiment of this utility model. 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 utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A refrigerated dryer drive device, characterized in that, It includes a circuit board and a power input port, a three-phase compressor drive module, a three-phase cooler drive module, a drain valve drive module, an antifreeze bypass valve drive module, a running signal output module, an alarm signal output module, and a data interaction interface integrated on the circuit board; The power input port is connected to the contact switch input terminal of the three-phase compressor drive module, the contact switch input terminal of the three-phase cooler drive module, the contact switch input terminal of the drain valve drive module, and the contact switch input terminal of the antifreeze bypass valve drive module, respectively. The data interaction interface is connected to the controlled terminal of the three-phase compressor drive module, the controlled terminal of the three-phase cooler drive module, the controlled terminal of the drain valve drive module, the controlled terminal of the antifreeze bypass valve drive module, the controlled terminal of the operation signal output module, and the controlled terminal of the alarm signal output module.

2. The refrigerated dryer drive device as described in claim 1, characterized in that, The three-phase compressor drive module includes a three-phase compressor drive port and three compressor drive relays; The power input port is connected to the input terminals of the contact switches of the three compressor drive relays via a double jumper connection. The output terminals of the contact switches of the three compressor drive relays are connected to the three-phase compressor drive port. The data interaction interface is connected to the controlled terminals of the three compressor drive relays. The double jumper connection method includes using two parallel jumpers and using two overlapping jumpers.

3. The refrigerated dryer drive device as described in claim 1, characterized in that, The three-phase cooler drive module includes a three-phase cooler drive port and three cooler drive relays; The power input port is connected to the contact switch input terminals of the three cooler drive relays via a double jumper connection. The contact switch output terminals of the three cooler drive relays are connected to the three-phase cooler drive port. The data interaction interface is connected to the controlled terminals of the three cooler drive relays. The double jumper connection method includes using two parallel jumpers and using two overlapping jumpers.

4. The refrigerated dryer drive device as described in claim 1, characterized in that, The drain valve drive module includes a drain valve drive port and a drain valve drive relay; the power input port is connected to the contact switch input terminal of the drain valve drive relay, the contact switch output terminal of the drain valve drive relay is connected to the drain valve drive port, and the data interaction interface is connected to the controlled terminal of the drain valve drive relay. The antifreeze bypass valve drive module includes an antifreeze bypass valve drive port and an antifreeze bypass valve drive relay; the power input port is connected to the contact switch input terminal of the antifreeze bypass valve drive relay, the contact switch output terminal of the antifreeze bypass valve drive relay is connected to the antifreeze bypass valve drive port, and the data interaction interface is connected to the controlled terminal of the antifreeze bypass valve drive relay. The operation signal output module includes an operation signal output port and an operation signal output drive relay; the data interaction interface is connected to the controlled end of the operation signal output drive relay, and the output end of the operation signal output drive relay is connected to the operation signal output port; The alarm signal output module includes an alarm signal output port and an alarm drive relay; the data interaction interface is connected to the controlled end of the alarm drive relay, and the output end of the alarm drive relay is connected to the alarm signal output port.

5. The refrigerated dryer drive device as described in claim 2, characterized in that, The device also includes a current transformer and a current detection module integrated on the circuit board; the current transformer is connected between the compressor drive relay and the three-phase compressor drive port, and the output terminal of the current transformer is connected to the input terminal of the current detection module, and the signal output terminal of the current detection module is connected to the data interaction interface.

6. The refrigerated dryer drive device as described in claim 5, characterized in that, The device also includes a three-phase power detection module; the input terminal of the three-phase power detection module is connected to the power input port, and the signal output terminal of the three-phase power detection module is connected to the data interaction interface.

7. The refrigerated dryer drive device as described in claim 6, characterized in that, The device also includes a digital input module and a digital detection module integrated on the circuit board; the output terminal of the digital input module is connected to the input terminal of the digital detection module, and the signal output terminal of the digital detection module is connected to the data interaction interface.

8. The refrigerated dryer drive device as described in claim 7, characterized in that, The device also includes a buzzer and a fuse integrated on the circuit board; the data interaction interface is connected to the controlled end of the buzzer.

9. The refrigerated dryer drive device as described in claim 8, characterized in that, The device further includes a transformer power supply port, a power input port, and a power processing module integrated on the circuit board; the power input port is connected to the transformer power supply port, which is used to supply power to an external transformer; the power input port is used to receive the step-down voltage of the transformer; the input terminal of the power processing module is connected to the power input port, and the output terminal of the power processing module is connected to the power receiving terminals of the three-phase compressor drive module, the three-phase cooler drive module, the drain valve drive module, the antifreeze bypass valve drive module, the running signal output module, the alarm signal output module, the current detection module, the three-phase power detection module, the switch quantity detection module, and the buzzer.

10. A refrigerated dryer drive, characterized in that, It includes a processor, a display module, and a refrigerated dryer drive device as described in any one of claims 1 to 9; the processor is connected to the data interaction interface of the refrigerated dryer drive device via a data cable, the processor is connected to the display module, and the processor has a temperature sensor interface and a communication interface.

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