Compressor controller, compressor and vehicle

Abstract

The utility model discloses a compressor controller, a compressor and a vehicle, and the compressor controller comprises an isolation communication unit which is suitable for transmitting a control instruction received by a low-pressure area to a high-pressure area in an isolation manner; the control unit is arranged in the high-voltage area and is configured to generate at least one of a first control signal and a second control signal according to the control instruction; the first driving unit and the inversion unit are arranged in the high-voltage area, and the first driving unit is configured to generate a first driving signal according to the first control signal and drive a power switch device in the inversion unit so as to control a compressor motor to operate through the inversion unit; and the second driving unit and the switch unit are arranged in the high-voltage area, and the second driving unit is configured to generate a second driving signal according to the second control signal to drive the switch unit to be switched on so as to control a heater connected with the switch unit to perform heating work.

Description

Technical Field

[0001] This application relates to the field of compressor technology, and in particular to a compressor controller, a compressor, and a vehicle. Background Technology

[0002] Vehicle heaters primarily function to preheat the engine and provide warmth to the driver's cabin in low winter temperatures. To adjust the heater's heating power, a controller is installed. This controller regulates the heater's power by changing the number of switches or adjusting their duty cycle. The controller is located inside the heater and includes circuits such as a voltage conversion circuit, an isolation transformer, a microcontroller, and an isolation drive circuit. Therefore, the controller not only increases the size of the heater but also increases the system's hardware cost. Utility Model Content

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. Therefore, the first objective of this invention is to provide a compressor controller that eliminates the need for a separate controller in the heater by adding a heater drive unit and a switching unit to the compressor controller. This reduces the size of the heater. Furthermore, by sharing an isolated communication unit and a control unit, the controller's circuitry is reduced, thereby lowering the system's size and hardware cost.

[0004] The second objective of this invention is to provide a compressor.

[0005] The third objective of this utility model is to provide a vehicle.

[0006] To achieve the above objectives, a compressor controller is provided according to a first aspect of the present invention, comprising: an isolation communication unit adapted to isolate and transmit control commands received in a low-pressure zone to a high-pressure zone; a control unit disposed in the high-pressure zone, the control unit being connected to the isolation communication unit and configured to generate at least one of a first control signal and a second control signal according to the control command; a first drive unit and an inverter unit disposed in the high-pressure zone, the first drive unit being connected to the inverter unit and the control unit respectively, the first drive unit being configured to generate a first drive signal according to the first control signal to drive the power switching device in the inverter unit, so as to control the operation of the compressor motor through the inverter unit; and a second drive unit and a switch unit disposed in the high-pressure zone, the second drive unit being connected to the switch unit and the control unit respectively, the second drive unit being configured to generate a second drive signal according to the second control signal to drive the switch unit to conduct, so as to control the heater connected to the switch unit to perform heating operation.

[0007] The compressor controller according to an embodiment of the present invention includes an isolation communication unit, a control unit disposed in a high-pressure zone, a first drive unit and an inverter unit disposed in the high-pressure zone, and a second drive unit and a switching unit disposed in the high-pressure zone. The isolation communication unit is adapted to isolate and transmit control commands received in the low-pressure zone to the high-pressure zone. The control unit is configured to generate at least one of a first control signal and a second control signal according to the control command. The first drive unit is configured to generate a first drive signal according to the first control signal to drive the power switching device in the inverter unit, thereby controlling the compressor motor to operate through the inverter unit. The second drive unit is configured to generate a second drive signal according to the second control signal to drive the switching unit to conduct, thereby controlling the heater connected to the switching unit to perform heating operations. Thus, by adding a second drive unit and a switching unit to the compressor controller, the compressor controller can control the heater, thereby eliminating the need for a controller in the heater itself. This eliminates the need for controller circuitry, circuit boards, and cooling equipment, reducing not only the overall cost of the heater but also its design complexity, thereby reducing the system's size and cost.

[0008] According to one embodiment of the present invention, the switching unit includes at least one switching transistor, the first end of each switching transistor is adapted to be connected to one end of the heater, the second end of each switching transistor is adapted to be connected to the negative terminal of the high-voltage power supply, the control terminal of each switching transistor is connected to the output terminal of the second driving unit, wherein the other end of the heater is adapted to be connected to the positive terminal of the high-voltage power supply.

[0009] According to one embodiment of the present invention, the switching unit includes at least one switching transistor, the first end of each switching transistor is adapted to be connected to the positive terminal of the high-voltage power supply, the second end of each switching transistor is adapted to be connected to one end of the heater, the control terminal of each switching transistor is connected to the output terminal of the second driving unit, wherein the other end of the heater is adapted to be connected to the negative terminal of the high-voltage power supply.

[0010] According to one embodiment of the present invention, when each switching transistor is a MOSFET, the first terminal of each switching transistor is the drain and the second terminal of each switching transistor is the source.

[0011] According to one embodiment of the present invention, when each switching transistor is an IGBT, the first end of each switching transistor is the collector, and the second end of each switching transistor is the emitter.

[0012] According to one embodiment of the present invention, the compressor controller further includes: a voltage conversion unit disposed in the low-voltage zone, the voltage conversion unit being adapted to perform voltage conversion on the low-voltage power supply to output a first power supply, wherein the first power supply is used to power the isolated communication unit; and an isolation transformer unit, the isolation transformer unit being adapted to perform isolation conversion on the low-voltage power supply to output a second power supply and a third power supply, and providing the second power supply to the first drive unit and the second drive unit respectively, and providing the third power supply to the control unit.

[0013] According to one embodiment of the present invention, the isolated communication unit includes: a transceiver disposed in a low-voltage zone, the transceiver being adapted to receive control commands sent by a host computer; and an isolated communication circuit connected to the transceiver, the isolated communication circuit being adapted to transmit the control commands to the control unit in an isolated manner.

[0014] To achieve the above objectives, a compressor is provided according to a second aspect of the present invention, comprising: a compressor motor; and a compressor controller of any of the preceding embodiments, wherein the compressor controller is connected to the compressor motor and a heater respectively, and the compressor controller is configured to control the compressor motor and the heater according to received control commands.

[0015] According to the compressor of the present invention, by adopting the above-mentioned compressor controller, by adding a heater drive unit and a switching unit in the compressor controller, the controller in the heater is eliminated, thereby reducing the size of the heater. Furthermore, by sharing the isolation communication unit and the control unit, the circuit of the controller is reduced, thereby reducing the size of the system and the hardware cost.

[0016] To achieve the above objectives, a vehicle is provided according to a third aspect of the present invention, comprising: a heater; the aforementioned compressor; a high-voltage power supply unit adapted to provide high-voltage power to power the inverter unit and the heater in the compressor; and a low-voltage power supply unit adapted to provide low-voltage power to power the compressor controller in the compressor.

[0017] According to the vehicle of this utility model embodiment, by adopting the above-mentioned compressor, by adding a heater drive unit and a switching unit in the compressor controller, the controller in the heater is eliminated, thereby reducing the size of the heater. Furthermore, by sharing the isolation communication unit and the control unit, the circuit of the controller is reduced, thereby reducing the size of the system and the hardware cost.

[0018] According to one embodiment of the present invention, the vehicle further includes a first connector, which is connected to the compressor, the high-voltage power supply unit and the heater respectively.

[0019] According to one embodiment of the present invention, the vehicle further includes: a second connector, which is connected to the compressor and the high-voltage power supply unit respectively; and a third connector, which is connected to the high-voltage power supply unit and the heater respectively.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a compressor controller according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of a heater based on related technologies;

[0023] Figure 3 This is a schematic diagram of the structure of a compressor controller based on related technologies;

[0024] Figure 4 This is a schematic diagram showing the external connections of the compressor and heater in the relevant technology;

[0025] Figure 5 This is a circuit diagram of a compressor controller according to an embodiment of the present invention;

[0026] Figure 6 This is a structural schematic diagram of a vehicle according to an embodiment of the present utility model;

[0027] Figure 7 This is a circuit diagram of a compressor controller according to another embodiment of the present invention;

[0028] Figure 8 This is a structural schematic diagram of a vehicle according to another embodiment of the present invention;

[0029] Figure 9 This is a schematic diagram of the compressor controller according to another embodiment of the present invention;

[0030] Figure 10 This is a structural schematic diagram of a vehicle according to another embodiment of the present invention. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0032] The compressor controller, compressor, and vehicle of this utility model are described below with reference to the accompanying drawings.

[0033] Figure 1 This is a schematic diagram of the compressor controller according to an embodiment of the present invention. Figure 1 As shown, the compressor controller 100 includes: an isolation communication unit 10, a control unit 20 disposed in the high-pressure zone 1000, a first drive unit 30 and an inverter unit 40 disposed in the high-pressure zone 1000, a second drive unit 50 disposed in the high-pressure zone 1000 and a switching unit 60.

[0034] The isolation communication unit 10 is adapted to isolate and transmit control commands received in the low-voltage zone to the high-voltage zone 1000; the control unit 20 is connected to the isolation communication unit 10 and is configured to generate at least one of a first control signal and a second control signal according to the control command; the first drive unit 30 is connected to the inverter unit 40 and the control unit 20 respectively, and is configured to generate a first drive signal according to the first control signal to drive the power switching device in the inverter unit 40 so as to control the compressor motor 210 to run through the inverter unit 40; the second drive unit 50 is connected to the switch unit 60 and the control unit 20 respectively, and is configured to generate a second drive signal according to the second control signal to drive the switch unit 60 to conduct so as to control the heater 300 connected to the switch unit 60 to perform heating operation.

[0035] Specifically, Figure 2 A schematic diagram of the structure of a heater in the related art is shown, such as... Figure 2 As shown, heater 300 can be a PTC (Positive Temperature Coefficient) heater. Heater 300 includes heater controller 310 and heating unit 320. Heater controller 310 includes a first voltage conversion unit 311 and a first control unit 312, a first isolation transformer unit 313, an isolation drive unit 314 and a first switching unit 315 disposed in low voltage zone 2000. Heating unit 320 includes two sets of PTC resistors 321. Switching unit 315 includes two switching transistors QA and QB. Each switching transistor is connected to a set of PTC resistors 321. A set of PTC resistors 321 includes three PTC resistors PTC connected in parallel.

[0036] Figure 3 A schematic diagram of the compressor controller in the related art is shown, such as... Figure 3As shown, the compressor controller 100 includes a second voltage conversion unit 101 and a receiving unit 102 disposed in the low-pressure zone 2000, a second isolation transformer unit 103, a first isolation communication unit 104, a bootstrap drive unit 105 disposed in the high-pressure zone 1000, a second control unit 106, and an inverter unit 40. The inverter unit 40 is adapted to connect to the compressor motor 210. The inverter unit 40 includes six switching transistors Q1-Q6, which form a three-phase bridge arm to drive the compressor motor 210.

[0037] Figure 4 The external connection methods of the compressor and heater in related technologies are shown, such as... Figure 4 As shown, the compressor includes a compressor motor 210 and a compressor controller 100, and the heater 300 includes a heater controller 310 and a heating unit 320. Both the compressor controller 100 and the heater controller 310 need to be connected to the high-voltage power supply unit 400, the low-voltage power supply unit 500 and the CAN (Controller Area Network) bus 600.

[0038] Therefore, from Figures 2 to 4 As can be seen, the heater controller 310 and the compressor controller 100 have similar circuits. Therefore, by reusing part of the circuit in the compressor controller 100, the heater controller 310 can be integrated into the compressor controller 100, which can significantly reduce the size of the heater 300.

[0039] like Figure 2 and Figure 3 As shown, the drive circuits of the compressor controller 100 and the heater controller 310 are different. Therefore, a second drive unit 50 and a switching unit 60 need to be added to the compressor controller 100. After receiving the second control signal from the heating unit 320 through the isolation communication unit 10, the control unit 20 controls the second drive unit 50 according to the second control signal. The second drive unit 50 generates a second drive signal according to the second control signal to drive the switching unit 60 to conduct, thereby controlling the heater 300 to heat. Therefore, the compressor controller 100 with the addition of the second drive unit 50 and the switching unit 60 can control the heater 300, and the heater controller 310 can be eliminated. Thus, the heater 300 only includes the heating unit 320, which greatly reduces the size of the heater 300.

[0040] It should be noted that, Figure 2The structure of the heating unit 320 is exemplary. In practical applications, one or more sets of PTC resistors 321 can be designed according to the requirements of the heater 300, the device type of the switching unit 60, and the circuit area. The number of PTC resistors in each set of PTC resistors 321 can also be set according to actual needs, and there are no restrictions here.

[0041] In the above embodiments, by adding a second drive unit and a switching unit inside the compressor controller in the related technology, the compressor controller can control the compressor motor and the heater. The heater can eliminate its internal controller, and the low-voltage connector between the internal controller and the low-voltage power supply unit and the CAN bus can also be eliminated, reducing the size and design complexity of the heater, thereby reducing the size and cost of the vehicle system.

[0042] In some embodiments, such as Figure 5 and Figure 6 As shown, the switching unit 60 includes at least one switching transistor Q. The first end of each switching transistor Q is adapted to be connected to one end of the heater 300, and the second end of each switching transistor Q is adapted to be connected to the negative terminal of the high-voltage power supply HV-. The control terminal of each switching transistor Q is connected to the output terminal of the second drive unit 50, wherein the other end of the heater 300 is adapted to be connected to the positive terminal of the high-voltage power supply HV+.

[0043] Specifically, such as Figure 5 and Figure 6 As shown, each switch Q is positioned between the heater 300 and the negative terminal of the high-voltage power supply HV-. The high-voltage power supply flows out from the positive terminal of the high-voltage power supply unit 400, first through the heater 300, then through each switch, and finally back to the negative terminal of the high-voltage power supply unit 400.

[0044] In some embodiments, such as Figure 7 and Figure 8 As shown, the switching unit 60 includes at least one switching transistor Q. The first end of each switching transistor Q is adapted to be connected to the positive terminal HV+ of the high-voltage power supply, and the second end of each switching transistor Q is adapted to be connected to one end of the heater 300. The control terminal of each switching transistor Q is connected to the output terminal of the second drive unit 50. The other end of the heater 300 is adapted to be connected to the negative terminal HV- of the high-voltage power supply.

[0045] In other words, such as Figure 7 and Figure 8 As shown, each switch Q can also be placed between the positive terminal HV+ of the high-voltage power supply and the heater 300. The high-voltage power supply flows out from the positive terminal of the high-voltage power supply unit 400, first through each switch Q, then through the heater 300, and finally back to the negative terminal of the high-voltage power supply unit 400.

[0046] It should be noted that the number of switching transistors can be set according to the PTC resistor in the heating unit 320 of the heater 300, so as to... Figure 2 As shown in the example, the heating unit 320 includes two sets of PTC resistors 321, so two switching transistors QA and QB can be set.

[0047] In some embodiments, when each switch Q is a MOS (Metal-Oxide-Semiconductor Field-Effect Transistor), the first terminal of each switch Q is the drain and the second terminal of each switch Q is the source.

[0048] Specifically, when the first terminal of each switch Q is the drain and the second terminal of each switch Q is the source, each switch Q is an NMOS (N-Metal-Oxide-Semiconductor) transistor.

[0049] It should be noted that the structure of the second drive unit 50 when each switch Q is positioned between the heater 300 and the negative terminal of the high-voltage power supply HV- is different from that when each switch Q is positioned between the positive terminal of the high-voltage power supply HV+ and the heater 300. When each switch Q is positioned between the positive terminal of the high-voltage power supply HV+ and the heater 300, the second drive unit 50 needs to perform high-side drive on the switch Q. Therefore, the second drive unit 50 includes a high-side drive circuit (not shown). Compared to the second drive unit 50 when the switch Q is positioned between the heater 300 and the negative terminal of the high-voltage power supply HV-, the structure of the second drive unit 50 in this case is more complex.

[0050] In an optional implementation, when each switch Q can also be positioned between the high-voltage power supply positive terminal HV+ and the heater 300, and each switch Q is a MOS transistor, the first terminal of each switch Q is the source, and the second terminal of each switch Q is the drain. When each switch Q can also be positioned between the high-voltage power supply positive terminal HV+ and the heater 300, each switch Q can also be a PMOS (P-Metal-Oxide-Semiconductor) transistor. Because NMOS and PMOS transistors have different driving methods, the circuit structure of the second driving unit 50 is also different from the circuit structure of the second driving unit 50 when each switch Q is positioned between the heater 300 and the high-voltage power supply negative terminal HV-.

[0051] In some embodiments, when each switch Q is an IGBT (Insulated Gate Bipolar Transistor), the first terminal of each switch Q is the collector, and the second terminal of each switch Q is the emitter.

[0052] It is understandable that the switching transistor Q is not limited to a MOSFET, but can also be an IGBT.

[0053] It should be noted that the switching transistor Q is not limited to MOSFETs and IGBTs, but can also be other types. The switching transistor Q can be set according to the actual situation.

[0054] In some embodiments, such as Figure 9 As shown, the compressor controller 100 further includes a voltage conversion unit 70 and an isolation transformer unit 80 disposed in the low-pressure zone 2000. The voltage conversion unit 70 is adapted to perform voltage conversion on the low-voltage power supply to output a first power supply VDD1, wherein the first power supply VDD1 is used to power the isolation communication unit 10. The isolation transformer unit 80 is adapted to perform isolation conversion on the low-voltage power supply to output a second power supply VCC and a third power supply VDD2, and provides the second power supply VCC to the first drive unit 30 and the second drive unit 50 respectively, and provides the third power supply VDD2 to the control unit 20.

[0055] Specifically, the voltage conversion unit 70 is adapted to connect to the positive terminal LV+ of the low-voltage power supply to convert the low-voltage power supply voltage, generating a first power supply VDD1, which is then provided to the isolation communication unit 10 so that the isolation communication unit 10 can operate normally. The first drive unit 30, the second drive unit 50, and the control unit 20 of the high-voltage zone 1000 also require a power supply to operate normally. Since the high-voltage power supply is used to drive the compressor motor 210 and the heater 300, an isolation transformer unit 80 is needed to isolate and convert the low-voltage power supply. The isolation transformer unit 80 is adapted to connect to the positive terminal LV+ of the low-voltage power supply to isolate and convert the low-voltage power supply, generating a second power supply VCC and a third power supply VDD2. The second power supply VCC is provided to the first drive unit 30 and the second drive unit 50, and the third power supply VDD2 is provided to the control unit 20, so that the first drive unit 30, the second drive unit 50, and the control unit 20 can operate normally.

[0056] In an optional embodiment, the compressor controller 100 further includes a first voltage conversion unit (not shown) disposed in the high-voltage zone 1000. The isolation transformer unit 80 performs isolation conversion on the low-voltage power supply, outputs a second power supply VCC, and provides the second power supply VCC to the first drive unit 30 and the second drive unit 50 respectively. The first voltage conversion unit performs voltage conversion on the second power supply VCC to generate a third power supply VDD2, and provides the third power supply VDD2 to the control unit 20.

[0057] In some embodiments, such as Figure 9 As shown, the isolation communication unit 10 includes: a transceiver 11 disposed in the low-voltage zone 2000 and an isolation communication circuit 12 connected to the transceiver 11, wherein the transceiver 11 is adapted to receive control commands sent by a host computer (not shown); the isolation communication circuit 12 is adapted to transmit the control commands to the control unit 20 in isolation.

[0058] Specifically, one end of transceiver 11 is connected to voltage conversion unit 70 to receive the first power supply VDD1 provided by voltage conversion unit 70. The ground terminal of transceiver 11 is connected to the ground terminal of the isolation communication circuit and is suitable for connecting to the negative terminal LV- of the low-voltage power supply. Transceiver 11 can communicate with the host computer via CAN or LIN (Local Interconnect Network) to receive control commands sent by the host computer and transmit the control commands to the control unit 20 of high-voltage area 1000 through isolation communication circuit 12.

[0059] In an optional implementation, the transceiver 11 can also be a control chip. The control chip can also receive instructions sent by the host computer, generate control signals according to the instructions sent by the host computer, and transmit the control signals to the control unit 20 through the isolation communication circuit 12, so that the control unit 20 can generate a first control signal and a second control signal according to the control signals.

[0060] It should be noted that both the control unit 20 and the control chip can be MCU (Microcontroller Unit), but are not limited to MCU. They can also be other control chips, such as FPGA (Field Programmable Gate Array). No specific restrictions are made here.

[0061] Furthermore, when the transceiver 11 is a control chip, the control unit 20 located in the high-voltage zone 1000 can be eliminated. The isolation transmission circuit is connected to the first drive unit 30 and the second drive unit 50 respectively. The control chip generates at least one of the first control signal and the second control signal according to the control command sent by the host computer, and transmits the first control signal to the first drive unit 30 in isolation through the isolation transmission circuit, and transmits the second control signal to the second drive unit 50 in isolation through the isolation transmission circuit.

[0062] In summary, the compressor controller according to this embodiment includes an isolation communication unit, a control unit disposed in the high-pressure zone, a first drive unit and an inverter unit disposed in the high-pressure zone, and a second drive unit and a switching unit disposed in the high-pressure zone. The isolation communication unit is adapted to isolate and transmit control commands received in the low-pressure zone to the high-pressure zone. The control unit is configured to generate at least one of a first control signal and a second control signal according to the control command. The first drive unit is configured to generate a first drive signal according to the first control signal to drive the power switching device in the inverter unit, thereby controlling the compressor motor to operate through the inverter unit. The second drive unit is configured to generate a second drive signal according to the second control signal to drive the switching unit to conduct, thereby controlling the heater connected to the switching unit to perform heating operations. Thus, by adding a second drive unit and a switching unit to the compressor controller, the compressor controller can control the heater, thereby eliminating the need for a controller in the heater. This eliminates the need for controller circuitry, circuit boards, and cooling equipment, reducing not only the total cost of the heater but also the overall system size and cost.

[0063] Corresponding to the above embodiments, this utility model also proposes a compressor. For example... Figure 6 and Figure 8 As shown, the compressor 200 includes: a compressor motor 210 and a compressor controller 100 of any of the preceding embodiments.

[0064] The compressor controller 100 is connected to the compressor motor 210 and the heater 300 respectively, and the compressor controller 100 is configured to control the compressor motor 210 and the heater 300 according to the received control commands.

[0065] According to the compressor of the present invention, by adopting the above-mentioned compressor controller, by adding a heater drive unit and a switching unit in the compressor controller, the controller in the heater is eliminated, thereby reducing the size of the heater. Furthermore, by sharing the isolation communication unit and the control unit, the circuit of the controller is reduced, thereby reducing the size of the system and the hardware cost.

[0066] Corresponding to the above embodiments, this utility model also proposes a vehicle. For example... Figure 6 and8 As shown, the vehicle 3000 includes: a heater 300, the aforementioned compressor 200, a high-voltage power supply unit 400, and a low-voltage power supply unit 500.

[0067] The high-voltage power supply unit 400 is adapted to provide high-voltage power to power the inverter unit 40 and heater 300 in the compressor; the low-voltage power supply unit 500 is adapted to provide low-voltage power to power the compressor controller 100 in the compressor.

[0068] Specifically, because a second drive unit 50 and a switching unit 60 are added to the compressor controller 100, the compressor controller 100 can also control the heater 300. The low-voltage power supply unit 500 provides voltage power to the compressor controller 100, enabling it to operate normally. The compressor controller 100 controls the first drive unit 30 and the second drive unit 50 according to received control commands. The first drive unit 30 drives the inverter unit 40 to operate according to a first control signal, so that the inverter unit 40 drives the compressor motor 210 to run according to the high-voltage power supply. The second drive unit 50 drives the switching unit 60 to switch on and off according to a second control signal, so that the heater 300 heats according to the high-voltage power supply when the switching unit 60 is on, and stops heating when the switching unit 60 is off.

[0069] The vehicle 3000 according to an embodiment of the present invention includes the compressor 200 described in any of the above embodiments. Here, the vehicle can be a new energy vehicle. In some embodiments, the new energy vehicle can be a pure electric vehicle with an electric motor as the main driving force. In other embodiments, the new energy vehicle can also be a hybrid vehicle with both an internal combustion engine and an electric motor as the main driving force. Regarding the internal combustion engine and electric motor mentioned in the above embodiments that provide driving power for the new energy vehicle, the internal combustion engine can use gasoline, diesel, hydrogen, etc. as fuel, and the way to provide electrical energy to the electric motor can be a power battery, hydrogen fuel cell, etc., without special limitation. It should be noted that this is merely an exemplary description of the structure of new energy vehicles, etc., and is not intended to limit the scope of protection of the present invention.

[0070] In the above embodiments, by adding a heater drive unit and a switching unit to the compressor controller, the controller in the heater is eliminated, which reduces the size of the heater. Furthermore, by sharing the isolation communication unit and the control unit, the controller circuitry is reduced, thereby reducing the size of the system and the hardware cost.

[0071] In some embodiments, such as Figure 6 As shown, the vehicle 3000 also includes a first connector (not shown), which is connected to the compressor 200, the high-voltage power supply unit 400 and the heater 300 respectively.

[0072] Specifically, the compressor 200 and the high-voltage power supply unit 400 need to be connected through a first connector. Since the first connector has multiple pins, the heater 300 can be directly connected to the first connector. The high-voltage power supply unit 400 provides high-voltage power to both the compressor 200 and the heater 300 through the first connector.

[0073] In some embodiments, such as Figure 10 As shown, the vehicle 3000 also includes a second connector (not shown) and a third connector (not shown), wherein the second connector is connected to the compressor 200 and the high-voltage power supply unit 400 respectively; and the third connector is connected to the high-voltage power supply unit 400 and the heater 300 respectively.

[0074] Specifically, the compressor and heater 300 may not share a single connector. The compressor 200 is connected to the high-voltage power supply unit 400 via a second connector, and the heater 300 is connected to the high-voltage power supply unit 400 via a third connector. However, this connection method adds a connector compared to the compressor 200 and heater 300 sharing a single connector, which increases the hardware cost and increases the circuit loop, making it more susceptible to interference.

[0075] In summary, the vehicle according to the present invention, by adopting the above-mentioned compressor, by adding a heater drive unit and a switching unit in the compressor controller, eliminates the controller in the heater, thereby reducing the size of the heater. Furthermore, by sharing the isolation communication unit and the control unit, the controller circuitry is reduced, thus reducing the size of the system and the hardware cost.

[0076] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0077] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0078] Furthermore, the terms "first," "second," etc., used in the embodiments of this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance, or implicitly specifying the number of technical features indicated in this embodiment. Therefore, features defined with terms such as "first" and "second" in the embodiments of this utility model can explicitly or implicitly indicate that the embodiment includes at least one of those features. In the description of this utility model, the word "multiple" means at least two or more, such as two, three, four, etc., unless otherwise explicitly specified in the embodiments.

[0079] In this utility model, unless otherwise explicitly specified or limited in the embodiments, the terms "installation," "connection," "joining," and "fixing" appearing in the embodiments should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral part; it can also be a mechanical connection, an electrical connection, etc. Of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two components, or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific implementation.

[0080] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A compressor controller, characterized in that, include: An isolation communication unit is suitable for isolating and transmitting control commands received in the low-voltage area to the high-voltage area; A control unit located in a high-voltage area, the control unit being connected to the isolation communication unit, the control unit being configured to generate at least one of a first control signal and a second control signal according to the control command; A first drive unit and an inverter unit are disposed in the high-voltage zone. The first drive unit is connected to the inverter unit and the control unit respectively. The first drive unit is configured to generate a first drive signal according to the first control signal to drive the power switching device in the inverter unit so as to control the operation of the compressor motor through the inverter unit. A second drive unit and a switch unit are disposed in the high-voltage zone. The second drive unit is connected to the switch unit and the control unit, respectively. The second drive unit is configured to generate a second drive signal according to the second control signal to drive the switch unit to conduct, so as to control the heater connected to the switch unit to perform heating operation.

2. The compressor controller according to claim 1, characterized in that, The switching unit includes at least one switching transistor, the first end of each switching transistor is adapted to be connected to one end of the heater, the second end of each switching transistor is adapted to be connected to the negative terminal of the high-voltage power supply, the control terminal of each switching transistor is connected to the output terminal of the second driving unit, wherein the other end of the heater is adapted to be connected to the positive terminal of the high-voltage power supply.

3. The compressor controller according to claim 1, characterized in that, The switching unit includes at least one switching transistor, the first end of each switching transistor is adapted to be connected to the positive terminal of the high-voltage power supply, the second end of each switching transistor is adapted to be connected to one end of the heater, the control terminal of each switching transistor is connected to the output terminal of the second driving unit, wherein the other end of the heater is adapted to be connected to the negative terminal of the high-voltage power supply.

4. The compressor controller according to claim 2 or 3, characterized in that, In the case where each of the switching transistors is a MOSFET, the first terminal of each switching transistor is the drain, and the second terminal of each switching transistor is the source.

5. The compressor controller according to claim 2 or 3, characterized in that, In the case where each of the switching transistors is an IGBT, the first terminal of each switching transistor is the collector, and the second terminal of each switching transistor is the emitter.

6. The compressor controller according to claim 1, characterized in that, Also includes: A voltage conversion unit is provided in the low-voltage zone. The voltage conversion unit is adapted to convert the low-voltage power supply to output a first power supply, wherein the first power supply is used to power the isolated communication unit. An isolation transformer unit is adapted to isolate and transform a low-voltage power supply, output a second power supply and a third power supply, and provide the second power supply to the first drive unit and the second drive unit respectively, and provide the third power supply to the control unit.

7. The compressor controller according to claim 6, characterized in that, The isolated communication unit includes: A transceiver is installed in the low-voltage area, the transceiver being adapted to receive the control commands sent by the host computer; An isolated communication circuit connected to the transceiver is adapted to transmit the control commands to the control unit in an isolated manner.

8. A compressor, characterized in that, include: Compressor motor; The compressor controller according to any one of claims 1-7 is connected to the compressor motor and the heater respectively, and the compressor controller is configured to control the compressor motor and the heater according to received control commands.

9. A vehicle, characterized in that, include: heater; The compressor according to claim 8; A high-voltage power supply unit, adapted to provide a high-voltage power supply to power the inverter unit and the heater in the compressor; A low-voltage power supply unit, the low-voltage power supply unit being adapted to provide a low-voltage power supply to power the compressor controller in the compressor.

10. The vehicle according to claim 9, characterized in that, Also includes: The first connector is connected to the compressor, the high-voltage power supply unit, and the heater, respectively.

11. The vehicle according to claim 9, characterized in that, Also includes: The second connector is connected to both the compressor and the high-voltage power supply unit. The third connector is connected to both the high-voltage power supply unit and the heater.

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