Compressor, thermal management system, control method of thermal management system, computer storage medium and vehicle

Abstract

The invention discloses a compressor, a heat management system, a control method of the heat management system, a computer storage medium and a vehicle. The compressor comprises a low-pressure cavity, a high-pressure cavity, an electric control cavity, a heating device, a motor, a compression mechanism and an integrated electric control device; the low-pressure cavity communicates with the high-pressure cavity, the low-pressure cavity is connected with an air suction channel, and the high-pressure cavity is connected with an exhaust channel; the heating device and the motor are arranged in the low-pressure cavity; the compression mechanism is arranged in the high-pressure cavity; the integrated electric control device is arranged in the electric control cavity; the integrated electric control device can independently control the heating device and the motor at the same time. According to the compressor, the heating device and the motor in the embodiment of the invention, the refrigerant in the low-pressure cavity can be cooperatively heated, the compressor can be well started in a low-temperature environment and can be well operated after being started, and the compressor is simple in structure and low in cost.

Description

Compressors, thermal management systems, control methods for thermal management systems, computer storage media, and vehicles. Technical Field

[0001] This invention relates to the field of compressor technology, and in particular to a compressor, a thermal management system, a control method for the thermal management system, a computer storage medium, and a vehicle. Background Technology

[0002] With the continuous development of thermal management systems, there are increasingly higher requirements for them, such as startup and operation in low-temperature environments. Thermal management systems in related technologies can start up and operate well in low-temperature environments, but they are complex in structure and have high costs. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide a compressor that can start well in low-temperature environments and operate well after starting, and the compressor of the present invention has a simple structure and low cost.

[0004] The present invention also proposes a thermal management system.

[0005] This invention also proposes a control method for a thermal management system.

[0006] The present invention also proposes a computer storage medium.

[0007] The present invention also proposes a vehicle.

[0008] According to a first aspect of the present invention, a compressor includes: a low-pressure chamber, a high-pressure chamber, an electronically controlled chamber, a heating device, a motor, a compression mechanism, and an integrated electronic control device. The low-pressure chamber is sealed and connected to the high-pressure chamber and the electronically controlled chamber, and the low-pressure chamber is in communication with the high-pressure chamber. The low-pressure chamber is connected to an intake passage, and the high-pressure chamber is connected to an exhaust passage. The heating device and the motor are disposed in the low-pressure chamber. The compression mechanism is disposed in the high-pressure chamber. The integrated electronic control device is disposed in the electronically controlled chamber. The integrated electronic control device can simultaneously and independently control the heating device and the motor.

[0009] According to the compressor of the present invention, by adding a heating device and placing both the heating device and the motor in the low-pressure cavity, the heating device and the motor can work together to heat the refrigerant in the low-pressure cavity, which can reduce the cost of the heating device. Furthermore, by setting an integrated electronic control device, which can independently control the heating device and the motor, the compressor can start well even in low-temperature environments and operate well after starting. Moreover, the compressor of the present invention has a simple structure and low production and operating costs.

[0010] This application also proposes a thermal management system for a compressor having the above-described embodiments.

[0011] The thermal management system according to an embodiment of the present invention includes: a compressor, a condenser, a liquid receiver, an evaporator, and a first throttling valve. The exhaust passage of the compressor is connected to the inlet of the condenser, the outlet of the condenser is connected to the inlet of the liquid receiver, the outlet of the liquid receiver is connected to the inlet of the first throttling valve, the outlet of the first throttling valve is connected to the inlet of the evaporator, and the outlet of the evaporator is connected to the suction passage of the compressor.

[0012] According to the thermal management system of the compressor of the present invention, the low-pressure cavity of the compressor has a heating device and a compressor, and an integrated electronic control device is disposed in the electronic control cavity. The integrated electronic control device can independently control the heating device and the motor, so that the compressor can start well even in low-temperature environments and operate well after starting.

[0013] In some embodiments of the present invention, the thermal management system further includes: a second throttling valve, the inlet of which is connected to the exhaust passage of the compressor and the inlet of the condenser; and the outlet of the second throttling valve is connected to the suction passage of the compressor and the outlet of the evaporator.

[0014] In some embodiments of the present invention, the condenser and / or the evaporator is a plate heat exchanger.

[0015] In some embodiments of the present invention, the thermal management system further includes: a coolant-side system; the condenser has a first heat exchange tube and a second heat exchange tube that exchange heat with each other; the inlet of the first heat exchange tube is connected to the exhaust passage of the compressor; the outlet of the first heat exchange tube is connected to the inlet of the liquid storage tank; and the second heat exchange tube is connected to the coolant-side system; the evaporator has a third heat exchange tube and a fourth heat exchange tube that exchange heat with each other; the inlet of the third heat exchange tube is connected to the outlet of the first throttle valve; the outlet of the third heat exchange tube is connected to the suction passage of the compressor; and the fourth heat exchange tube is connected to the coolant-side system.

[0016] In some embodiments of the present invention, the thermal management system further includes: a temperature measuring device, a control unit, an internal wiring harness, and an external wiring harness. The temperature measuring device is arranged in the low-pressure cavity. The heating device, the motor, and the temperature measuring device are all connected to the integrated electronic control device through the internal wiring harness. The integrated electronic control device is connected to the control unit through the external wiring harness.

[0017] In some embodiments of the present invention, the compressor is a vertical compressor, and the temperature measuring device is located above the motor and near the air intake of the compression mechanism.

[0018] In some embodiments of the present invention, the compressor is a horizontal compressor, and the temperature measuring device is disposed in the oil sump of the pressure chamber.

[0019] The present invention also proposes a control method for a thermal management system having the above embodiments.

[0020] The control method of the thermal management system according to an embodiment of the present invention includes: S1, a preheating mode before compressor start-up, including: S11, the integrated electronic control device controls the heating device to heat the low-pressure cavity with a predetermined power; S12, determining the temperature inside the low-pressure cavity; S13, when the temperature inside the low-pressure cavity is less than a specified temperature T1, returning to S11; when the temperature inside the low-pressure cavity is greater than or equal to the specified temperature T1, proceeding to S2; S2, a compressor start-up mode, including: the integrated electronic control device controls the motor to rotate at a specified speed.

[0021] In some embodiments of the present invention, the compressor's exhaust passage is connected to the condenser's inlet, the condenser's outlet is connected to the liquid receiver's inlet, the liquid receiver's outlet is connected to the first throttle valve's inlet, the first throttle valve's outlet is connected to the evaporator's inlet, the evaporator's outlet is connected to the compressor's suction passage, the second throttle valve's inlet is connected to both the compressor's exhaust passage and the condenser's inlet, and the second throttle valve's outlet is connected to both the compressor's suction passage and the evaporator's outlet. The compressor's start-up mode includes a low-temperature cold-drive mode, where the integrated electronic control device controls the motor to rotate at a specified speed. In this mode, both the first and second throttle valves are in a throttling state, and the refrigerant circulates. The integrated electronic control device also controls the heating device to operate at maximum power P. The system operates at speed 0 until the thermal management system reaches a steady-state pressure and temperature, and / or, in a normal start-up mode, including: the integrated electronic control device controls the motor to rotate at a specified speed, at which time the first throttle valve is in a throttling state, and both the second throttle valves are in a closed state, with refrigerant circulating; at this time, the integrated electronic control device controls the heating device to operate at a power P ≤ P0, with the heating power P adjusted in a closed loop based on the difference between the refrigerant superheat ΔT measured by the temperature measuring device and the set refrigerant superheat ΔT0; and / or, in a low-temperature steady-state operation mode, including: the integrated electronic control device controls the motor to rotate at a specified speed, at which time both the first and second throttle valves are in a throttling state, with refrigerant circulating; at this time, the integrated electronic control device controls the heating device to operate at a power P ≤ P0, with the heating power P adjusted in a closed loop based on the compressor's discharge pressure P. dWith the set compressor discharge pressure P d,0 The difference is used for closed-loop adjustment, and / or, conventional steady-state operation mode, including: the integrated electronic control device controls the motor to rotate at a specified speed. At this time, the first throttle valve is in a throttling state, and the second throttle valve is in a closed state, and the refrigerant circulates. At this time, the integrated electronic control device controls the heating device to operate with a power P≤P0. The heating power P is adjusted in a closed loop based on the difference between the refrigerant superheat ΔT measured by the temperature measuring device and the set refrigerant superheat ΔT0.

[0022] The present invention also proposes a computer storage medium.

[0023] According to an embodiment of the present invention, a computer storage medium stores a computer program, which, when executed by a processor, implements the control method of the thermal management system described above.

[0024] The present invention also proposes a vehicle.

[0025] The vehicle according to the present invention includes a compressor or a thermal management system. By setting the compressor or thermal management system of the above embodiments, the vehicle can better control the temperature inside the vehicle in low-temperature environments, and the temperature control effect is good.

[0026] Additional aspects and advantages of the 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

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0028] Figure 1 is a schematic diagram of the compressor in some embodiments.

[0029] Figure 2 is a schematic diagram of the structure of a thermal management system according to some embodiments.

[0030] Figure 3 is a schematic diagram showing the location of the internal temperature measuring device of a vertical compressor in some embodiments.

[0031] Figure 4 is a schematic diagram showing the location of the internal temperature measuring device of a horizontal compressor in some embodiments.

[0032] Figure 5 is a schematic diagram of refrigerant flow within the compressor in some embodiments.

[0033] Figure label:

[0034] 100. Compressor; 101. Low-pressure chamber; 102. High-pressure chamber; 103. Electrically controlled chamber; 104. Suction passage; 105. Heating device; 106. Integrated electrical control device; 107. Motor; 108. Exhaust passage; 109. Compression mechanism; 201. Condenser; 202. Liquid receiver; 203. Evaporator; 204. First throttle valve; 205. Second throttle valve; 301. Coolant side system; 110. Temperature measuring device; 111. Internal wiring harness; 112. External wiring harness; 401. Control unit; 113. Oil level; Detailed Implementation

[0035] Embodiments of the present invention 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 are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication 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 invention according to the specific circumstances.

[0038] The compressor 100 according to an embodiment of the present invention is described below with reference to Figures 1-5.

[0039] As shown in Figure 1, the compressor 100 according to an embodiment of the present invention includes a low-pressure chamber 101, a high-pressure chamber 102, an electronically controlled chamber 103, a heating device 105, a motor 107, a compressor 100 assembly, and an integrated electronically controlled device 106. The low-pressure chamber 101 is sealed and connected to the high-pressure chamber 102 and the electronically controlled chamber 103 respectively. The low-pressure chamber 101 is connected to the high-pressure chamber 102. The low-pressure chamber 101 is connected to an intake channel 104, and the high-pressure chamber 102 is connected to an exhaust channel 108. The heating device 105 and the motor 107 are disposed in the low-pressure chamber 101, the compressor 100 assembly is disposed in the high-pressure chamber 102, and the integrated electronically controlled device 106 is disposed in the electronically controlled chamber 103. The integrated electronically controlled device 106 can simultaneously and independently control the heating device 105 and the motor 107.

[0040] For example, in the first scenario, the integrated electronic control device 106 can independently control the heating device 105 to heat the refrigerant. Specifically, the refrigerant can enter the low-pressure chamber 101 from the intake channel 104. After the refrigerant enters the low-pressure chamber 101, the integrated electronic control device 106 can control the heating device 105 to heat the refrigerant. Specifically, most of the refrigerant entering the low-pressure chamber 101 can flow through the heating device 105. The refrigerant heated by the heating device 105 flows through the motor 107 and then enters the intake channel of the compressor 100. A small portion of the refrigerant, after entering the low-pressure chamber 101, can directly flow through the motor 107 and then enter the intake channel of the compressor 100.

[0041] For example, in the second case, the integrated electronic control device 106 can control the speed of the motor 107 independently, for example, by controlling the motor 107 to be in a stall mode, so that the motor 107 generates heat inside. In this way, after the refrigerant enters the low-pressure cavity 101 from the intake channel 104, the refrigerant can be heated by the motor 107 when it flows through the motor 107.

[0042] For example, in the third case, the integrated electronic control device 106 can simultaneously control the heating device 105 to generate heat and control the internal heat generation of the motor 107. In this way, after the refrigerant enters the low-pressure cavity 101 from the intake channel 104, the refrigerant can be heated after flowing through the heating device 105, and the refrigerant can also be heated when flowing through the motor 107. That is, the refrigerant in the low-pressure cavity 101 can be heated by the heating device 105 and the motor 107.

[0043] In the example above, during the process of the refrigerant in the low-pressure cavity 101, the heating device 105 and the motor 107 are controlled by the integrated electronic control device 106, which can effectively heat the refrigerant.

[0044] Furthermore, since the refrigerant in this invention can be heated by the heating device 105 after entering the low-pressure cavity 101, its temperature rises. When the heated refrigerant passes through the motor 107, the power of the motor 107 increases. Specifically, consider the following example: the original refrigerant temperature is T0, and the heating effect of the heating device 105 on the refrigerant flowing through it is T1, resulting in a refrigerant temperature of T0+T1. When the refrigerant at temperature T0+T1 flows through the motor 107, compared to the refrigerant at temperature T0, the power of the motor 107 increases, allowing the motor 107 to generate more heat to heat the refrigerant. For example, when the refrigerant at temperature T0 flows through the motor 107, the motor 107 can heat the refrigerant by an amplitude of T2. When the refrigerant at temperature T0+T1 flows through the motor 107, the heating range of the refrigerant is T3. Here, T3 is greater than T2 and T1. That is to say, as long as the heating device 105 heats the refrigerant first, the heated refrigerant will flow through the motor 107, and the motor 107 can heat the refrigerant to a higher temperature. Therefore, by utilizing this principle, the heating device 105 can achieve the goal of heating the refrigerant to the predetermined temperature with only a small operating power. This can reduce the heating pressure of the heating device 105 on the refrigerant and also reduce the operating power of the heating device 105. For example, if the required temperature range for heating the refrigerant is 10 degrees Celsius, if only the heating device 105 heats the refrigerant... Previously, heating device 105 would have required relatively high operating power to achieve a 10-degree Celsius temperature increase. However, with the participation of motor 107, heating device 105 only needs to heat the refrigerant by 3 degrees Celsius, and the remaining 7 degrees Celsius can be achieved through the motor 107. Therefore, heating device 105 requires only lower operating power to achieve a 3-degree Celsius temperature increase in the refrigerant. This reduces the cost of heating device 105.

[0045] By way of example, according to the technical solution of the present invention, due to the heating of the heating device 105 and the heating of the motor 107, the compressor 100 can start well in a low temperature state and operate well after starting.

[0046] Furthermore, the PTC heating scheme integrated inside the low-pressure cavity 101 of the compressor 100 involved in this invention can be integrated with the electronic control of the compressor 100 itself. That is, all the control components of the compressor 100 are integrated together and these control components are installed together in the electronic control cavity 103, thereby improving the integrated design of the compressor 100. As a result, in mass production, it is not necessary to separately produce and assemble the control components of the heating device 105, which can effectively reduce production costs.

[0047] Therefore, according to the compressor 100 of the present invention, by adding a heating device 105 and arranging both the heating device 105 and the motor 107 in the low-pressure cavity 101, the heating device 105 and the motor 107 can work together to heat the refrigerant in the low-pressure cavity 101, thereby reducing the cost of the heating device 105. Furthermore, by providing an integrated electronic control device 106, which can independently control the heating device 105 and the motor 107, the compressor 100 can start up well even in low-temperature environments and operate well after starting. Moreover, the compressor 100 of the present invention has a simple structure and low production and operating costs.

[0048] For example, the heating device 105 may be a PTC heating device, a resistance temperature detector (RTD) heating device, an electromagnetic induction heating device, a thin-film heating device, etc., and this application does not impose any limitations. For instance, the heating device 105 may change temperature in response to changes in power.

[0049] For example, the integrated electronic control device 106 can simultaneously and independently control the heating device 105 and the motor 107. The integrated electronic control device 106 can adjust the power of the heating device 105 and the speed of the motor 107. The heating device 105 can heat the refrigerant inside the low-pressure cavity 101. The motor 107, driven by the integrated electronic control device 106, can drive the compressor 100 to compress the low-pressure refrigerant into a high-pressure refrigerant.

[0050] Standalone PTC heaters are typically expensive because they require high power (5kW or more) and independent control modules. However, the PTC heating solution integrated into the low-pressure chamber 101 of the compressor 100, as designed in this invention, can be integrated with the original compressor 100's electrical control, significantly reducing costs. Furthermore, since the heating device 105 within the low-pressure chamber 101 increases system pressure during low-temperature cold start and low-temperature steady-state operation, it increases the power of the compressor 100's motor 107. Therefore, the increase in compressor 100 power and thermal management system heating capacity (power and heat are both measured in watts and can be directly added) brought about by the heating device 105 is far greater than the heat generated by the heating device 105 alone. This allows for a reduction in the PTC power design value, further lowering costs.

[0051] Furthermore, with the development of the new energy vehicle industry and technological advancements, the thermal management systems for new energy vehicles are becoming increasingly complex, but also facing numerous technical challenges. Among these, addressing the poor heating performance of heat pump air conditioning systems in new energy vehicles at low temperatures is the most critical technical difficulty in thermal management systems. Existing solutions such as PTC heaters, while simple, easy to control, and fast-responding, are costly and energy-intensive. On the other hand, solutions relying on the compressor's own power for low-temperature heating, such as compressor 100 hot gas bypass circulation or triangular circulation, suffer from long start-up times and poor reliability. Therefore, a low-cost, fast-response, and highly reliable low-temperature heating solution is needed.

[0052] Based on this, this application also proposes a thermal management system for a compressor 100 having the above embodiments.

[0053] As shown in Figure 2, the thermal management system according to an embodiment of the present invention includes a compressor 100, a condenser 201, a liquid receiver 202, an evaporator 203, and a first throttle valve 204. The exhaust passage 108 of the compressor 100 is connected to the inlet of the condenser 201, the outlet of the condenser 201 is connected to the inlet of the liquid receiver 202, the outlet of the liquid receiver 202 is connected to the inlet of the first throttle valve 204, the outlet of the first throttle valve 204 is connected to the inlet of the evaporator 203, and the outlet of the evaporator 203 is connected to the suction passage 104 of the compressor 100.

[0054] For example, when there is refrigerant flowing in the thermal management system, inside the compressor 100, the refrigerant can enter the low-pressure chamber 101 from the suction channel 104. The refrigerant entering the low-pressure chamber 101 can be heated by the heating device 105 and / or the motor 107. Then, the heated refrigerant can enter the compression structure in the high-pressure chamber 102, and then enter the high-pressure chamber 102 from the compressor 100 structure. It is then discharged from the exhaust channel 108 of the high-pressure chamber 102. The refrigerant discharged from the exhaust channel 108 can flow sequentially through the condenser 201, the liquid receiver 202, and the first throttle valve 204, and then enter the compressor 100 from the suction channel 104 of the compressor 100.

[0055] In the above technical solution, the low-pressure cavity 101 of the compressor 100 has a heating device 105 and a compressor 100. The integrated electronic control device 106 is installed in the electronic control cavity 103. The integrated electronic control device 106 can independently control the heating device 105 and the motor 107, so that the compressor 100 can start well even in low-temperature environments and can run well after starting.

[0056] Specifically, the compressor 100 has a preheating mode before startup, a low-temperature cold start mode, a normal startup mode, a low-temperature steady-state operation mode, and a normal steady-state operation mode.

[0057] Furthermore, the preheating mode before compressor 100 starts includes: the integrated electronic control device 106 controlling the heating device 105 to heat the low-pressure cavity 101 with a predetermined power; determining the temperature inside the low-pressure cavity 101; when the temperature inside the low-pressure cavity 101 is less than a specified temperature T1, the integrated electronic control device 106 controlling the heating device 105 to heat the low-pressure cavity 101 with a predetermined power; when the temperature inside the low-pressure cavity 101 is greater than or equal to the specified temperature T1, the preheating mode before compressor 100 starts is completed.

[0058] Specifically, the control content is as follows: In the preheating mode before compressor 100 starts, the integrated electronic control device 106 controls the motor 107 to not rotate, and can selectively put the motor 107 in a stall mode to generate heat inside the motor 107. At the same time, the integrated electronic control device 106 can control the heating device 105 to heat the refrigerant, lubricating oil and other parts inside the low-pressure cavity 101 at a specified power. When the temperature inside the low-pressure cavity 101 reaches a certain specified temperature T1, it is determined that the preheating before starting is completed, and the motor 107 can switch to the low-temperature cold start mode, the normal start mode, the low-temperature steady-state operation mode or the normal steady-state operation mode for starting.

[0059] In the low-temperature cold start mode, the integrated electronic control device 106 controls the motor 107 to rotate at a specified speed. At this time, the first throttle valve 204 is in a throttling state, and the refrigerant can circulate. At this time, the integrated electronic control device 106 controls the heating device 105 to operate at maximum power P0 until the system reaches steady-state pressure and temperature.

[0060] In the normal start-up mode, the integrated electronic control device 106 controls the motor 107 to rotate at a specified speed. At this time, the first throttle valve 204 is in a throttling state, and the refrigerant can circulate. At this time, the integrated electronic control device 106 controls the heating device 105 to operate with a power P≤P0. The heating power P is adjusted in a closed loop based on the difference between the refrigerant superheat ΔT measured by the temperature measuring device 110 and the set refrigerant superheat ΔT0.

[0061] In the low-temperature steady-state operation mode, the integrated electronic control device 106 controls the motor 107 to rotate at a specified speed. At this time, the first throttle valve 204 is in a throttling state, and the refrigerant can circulate. At this time, the integrated electronic control device 106 controls the heating device 105 to operate with power P≤P0. The heating power P is adjusted in a closed loop by the difference between the discharge pressure Pd of the compressor 100 and the set discharge pressure Pd,0 of the compressor 100.

[0062] In the normal steady-state operation mode, the integrated electronic control device 106 controls the motor 107 to rotate at a specified speed. At this time, the first throttle valve 204 is in a throttling state, and the refrigerant can circulate. At this time, the integrated electronic control device 106 controls the heating device 105 to operate with power P≤P0. The heating power P is adjusted in a closed loop based on the difference between the refrigerant superheat ΔT measured by the temperature measuring device 110 and the set refrigerant superheat ΔT0.

[0063] As can be seen from the above, the thermal management system of this invention, by setting the compressor 100 of the above embodiment, can construct a low-cost, fast-response, and highly reliable low-temperature heating solution, so that the thermal management system of this invention can reduce costs, improve response speed and reliability as a whole.

[0064] In some embodiments of the present invention, the thermal management system further includes: a second throttle valve 205, the inlet of which is connected to the exhaust passage 108 of the compressor 100 and the inlet of the condenser 201; and the outlet of the second throttle valve 205 is connected to the suction passage 104 of the compressor 100 and the outlet of the evaporator 203.

[0065] For example, after the compressor 100 completes the preheating mode before starting, in the low temperature cold start mode, the integrated electronic control device 106 controls the motor 107 to rotate at a specified speed. At this time, the first throttle valve 204 and the second throttle valve 205 are both in a throttling state, and the refrigerant can circulate. At this time, the integrated electronic control device 106 controls the heating device 105 to operate at the maximum power P0 until the system reaches the steady-state pressure and temperature.

[0066] In the normal start-up mode, the integrated electronic control device 106 controls the motor 107 to rotate at a specified speed. At this time, the first throttle valve 204 is in a throttling state, and the second throttle valve 205 is closed. The refrigerant can circulate. At this time, the integrated electronic control device 106 controls the heating device 105 to operate with a power P≤P0. The heating power P is adjusted in a closed loop based on the difference between the refrigerant superheat ΔT measured by the temperature measuring device 110 and the set refrigerant superheat ΔT0.

[0067] In the low-temperature steady-state operation mode, the integrated electronic control device 106 controls the motor 107 to rotate at a specified speed. At this time, the first throttle valve 204 and the second throttle valve 205 are both in a throttling state, and the refrigerant can circulate. At this time, the integrated electronic control device 106 controls the heating device 105 to operate with a power P≤P0. The heating power P is adjusted in a closed loop by the difference between the discharge pressure Pd of the compressor 100 and the set discharge pressure Pd,0 of the compressor 100.

[0068] In the normal steady-state operation mode, the integrated electronic control device 106 controls the motor 107 to rotate at a specified speed. At this time, the first throttle valve 204 is in a throttling state, and the second throttle valve 205 is in a closed state, allowing the refrigerant to circulate. At this time, the integrated electronic control device 106 controls the heating device 105 to operate with a power P≤P0. The heating power P is adjusted in a closed loop based on the difference between the refrigerant superheat ΔT measured by the temperature measuring device 110 and the set refrigerant superheat ΔT0.

[0069] In some embodiments of the present invention, the condenser 201 and / or the evaporator 203 are plate heat exchangers.

[0070] A plate heat exchanger is a high-efficiency heat exchange device that transfers heat through the contact between metal plates, which form channels for fluid flow. Plate heat exchangers are characterized by their compact size and high heat transfer efficiency.

[0071] For example, condenser 201 is a plate heat exchanger; for example, evaporator 203 is a plate heat exchanger; for example, both condenser 201 and evaporator 203 are plate heat exchangers.

[0072] In the above example, by making the condenser 201 and the evaporator 203 plate heat exchangers, the overall compactness of the thermal management system can be improved.

[0073] In some embodiments of the present invention, as shown in FIG2, the thermal management system further includes: a coolant-side system 301; a condenser 201 having a first heat exchange tube and a second heat exchange tube that exchange heat with each other; the inlet of the first heat exchange tube is connected to the exhaust passage 108 of the compressor 100, and the outlet of the first heat exchange tube is connected to the inlet of the liquid storage tank 202; the second heat exchange tube is connected to the coolant-side system 301; and an evaporator 203 having a third heat exchange tube and a fourth heat exchange tube that exchange heat with each other; the inlet of the third heat exchange tube is connected to the outlet of the first throttle valve 204, and the outlet of the third heat exchange tube is connected to the suction passage 104 of the compressor 100; the fourth heat exchange tube is connected to the coolant-side system 301. That is, the coolant-side heat exchange paths of both the evaporator 203 and the condenser 201 are connected to the coolant-side system 301, and thermal management of the heat load in the coolant-side system 301 is achieved by adjusting the coolant temperature.

[0074] In some embodiments of the present invention, as shown in FIG3, the thermal management system further includes: a temperature measuring device 110, a control unit 401, an internal wiring harness 111, and an external wiring harness 112. The temperature measuring device 110 is arranged in the low-pressure cavity 101. The heating device 105, the motor 107, and the temperature measuring device 110 are all connected to the integrated electronic control device 106 through the internal wiring harness 111. The integrated electronic control device 106 is connected to the control unit 401 through the external wiring harness 112.

[0075] There can be multiple temperature measuring devices 110, which can be flexibly arranged in various positions within the low-pressure cavity 101 to collect the temperature of the refrigerant and / or lubricating oil within the low-pressure cavity 101.

[0076] The temperature measuring device 110 is located inside the low-pressure cavity 101 and can monitor the temperature inside the low-pressure cavity 101, providing key temperature data for the thermal management system. This setup not only ensures the safe operation of the equipment inside the low-pressure cavity 101 and prevents various dangers caused by overheating, but also provides a basis for overall thermal management optimization.

[0077] The internal wiring harness 111 connects the heating device 105, the motor 107, the temperature measuring device 110, and the integrated electronic control device 106, making the thermal management system layout compact and orderly, and enabling stable signal transmission. Stable signal transmission ensures coordination between the components. The integrated electronic control device 106 can accurately control the heating device 105 and the motor 107 based on the data from the temperature measuring device 110, achieving efficient thermal management operation, and the compact wiring saves space.

[0078] External wiring harness 112 connects the integrated electronic control device 106 and the control unit 401, providing flexibility in the layout of the thermal management system. This allows the control unit 401 to be placed appropriately according to requirements, facilitating operation and monitoring. Simultaneously, this connection enables centralized management of the entire thermal management system by the control unit 401. Under different operating conditions, the thermal management system can maintain good thermal performance under the coordination of the control unit 401, ensuring that all components work in a coordinated manner, thereby guaranteeing the stable operation of the entire equipment.

[0079] In some embodiments of the present invention, the compressor 100 is a vertical compressor, and the temperature measuring device 110 is located above the motor 107 and near the air intake of the compressor 100.

[0080] In the schematic diagram of the vertical compressor in Figure 3, the temperature measuring device 110 is installed above the motor 107, near the suction port of the compressor 100. Here, the temperature of the refrigerant inside the low-pressure chamber 101 can be measured. When a large amount of liquid refrigerant has accumulated in the low-pressure chamber 101, the temperature measuring device 110 should measure the refrigerant saturation temperature Ti corresponding to the internal pressure Pi of the low-pressure chamber 101. Before the heating device 105 is activated, this temperature is equivalent to the ambient temperature of the compressor 100. If the motor 107 is started directly at this time, a large amount of liquid refrigerant in the low-pressure chamber 101 may directly enter the compressor 100, causing liquid slugging, lubrication damage, and other unfavorable conditions to the reliability of the compressor 100. Therefore, it is necessary to heat the low-pressure chamber 101 to prevent liquid refrigerant from entering the compressor 100. When the heating device 105 starts heating, the liquid refrigerant deposited in the low-pressure cavity 101 is heated and boiled, which may be accompanied by an increase in pressure inside the cavity. When the liquid refrigerant is completely evaporated / boiled and turned into a gaseous state, the gaseous refrigerant at the temperature measuring device 110 can have a significant superheat. At this time, the temperature measured by the temperature measuring device 110 is recorded as Ti,2, the internal pressure of the low-pressure cavity 101 is recorded as Pi,2, and the refrigerant saturation temperature corresponding to this pressure is recorded as Ti,s,2. Then, ΔT = Ti,2 - Ti,s,2 > 0. Usually, a target superheat ΔT0 is set. When the measured superheat satisfies ΔT > ΔT0, the motor 107 can be started.

[0081] In some embodiments of the present invention, the compressor 100 is a horizontal compressor, and the temperature measuring device 110 is disposed in the oil sump of the compression chamber.

[0082] In the schematic diagram of the horizontal compressor in Figure 4, the temperature measuring device 110 is installed below the oil level 113 in the low-pressure chamber 101. Similarly, starting the heating device 105 can heat the mixture of lubricating oil and deposited liquid refrigerant in the oil sump, which can evaporate the liquid refrigerant and raise the temperature of the lubricating oil. At this time, the target value of the oil sump temperature Toil,0 is set. When the temperature measuring device 110 reports that the oil temperature Toil > Toil,0, the motor 107 is then allowed to start.

[0083] The present invention also proposes a control method for a thermal management system having the above embodiments.

[0084] The control method of the thermal management system according to an embodiment of the present invention includes: S1, compressor 100 preheating mode before startup, the compressor preheating mode includes: S11, the integrated electronic control device 106 controls the heating device 105 to heat the low-pressure cavity 101 with a predetermined power; S12, judging the temperature inside the low-pressure cavity 101; S13, when the temperature inside the low-pressure cavity 101 is less than the specified temperature T1, returning to S11; when the temperature inside the low-pressure cavity 101 is greater than or equal to the specified temperature T1, entering S2; S2, compressor 100 startup mode, the compressor 100 startup mode includes: the integrated electronic control device 106 controls the motor 107 to rotate at a specified speed.

[0085] According to the control method of the thermal management system of the present invention, the heating device 105 and the motor 107 can work together to heat the refrigerant in the low-pressure cavity 101, which can reduce the cost of the heating device 105. Furthermore, by setting an integrated electronic control device 106, the integrated electronic control device 106 can independently control the heating device 105 and the motor 107, so that the compressor 100 can start well even in low-temperature environments and operate well after starting.

[0086] In some embodiments of the present invention, the exhaust passage 108 of the compressor 100 is connected to the inlet of the condenser 201, the outlet of the condenser 201 is connected to the inlet of the liquid receiver 202, the outlet of the liquid receiver 202 is connected to the inlet of the first throttle valve 204, the outlet of the first throttle valve 204 is connected to the inlet of the evaporator 203, the outlet of the evaporator 203 is connected to the suction passage 104 of the compressor 100, the inlet of the second throttle valve 205 is connected to the exhaust passage 108 of the compressor 100 and the inlet of the condenser 201, and the outlet of the second throttle valve 205 is connected to the suction passage 104 of the compressor 100 and the outlet of the evaporator 203.

[0087] For example, the compressor 100 start-up mode includes a low-temperature cold drive mode, which includes: the integrated electronic control device 106 controls the motor 107 to rotate at a specified speed. At this time, the first throttle valve 204 and the second throttle valve 205 are both in a throttling state, and the refrigerant circulates. At this time, the integrated electronic control device 106 controls the heating device 105 to operate at maximum power P0 until the thermal management system reaches a steady-state pressure and temperature.

[0088] For example, the compressor 100 start-up mode includes: a normal start-up mode, which includes: the integrated electronic control device 106 controlling the motor 107 to rotate at a specified speed. At this time, the first throttle valve 204 is in a throttling state, and the second throttle valve 205 is in a closed state, and the refrigerant circulates. At this time, the integrated electronic control device 106 controls the heating device 105 to operate with a power P≤P0. The heating power P is adjusted in a closed loop based on the difference between the refrigerant superheat ΔT measured by the temperature measuring device 110 and the set refrigerant superheat ΔT0.

[0089] For example, the compressor 100 start-up mode includes a low-temperature steady-state operation mode, which includes: the integrated electronic control device 106 controls the motor 107 to rotate at a specified speed. At this time, the first throttle valve 204 and the second throttle valve 205 are both in a throttling state, and the refrigerant circulates. At this time, the integrated electronic control device 106 controls the heating device 105 to operate with a power P≤P0. The heating power P is adjusted in a closed loop based on the difference between the compressor 100's discharge pressure Pd and the set compressor 100 discharge pressure Pd,0.

[0090] For example, the compressor 100 start-up mode includes: a normal steady-state operation mode, which includes: the integrated electronic control device 106 controls the motor 107 to rotate at a specified speed. At this time, the first throttle valve 204 is in a throttling state, and the second throttle valve 205 is in a closed state, and the refrigerant circulates. At this time, the integrated electronic control device 106 controls the heating device 105 to operate with a power P≤P0. The heating power P is adjusted in a closed loop based on the difference between the refrigerant superheat ΔT measured by the temperature measuring device 110 and the set refrigerant superheat ΔT0.

[0091] Figure 5 illustrates the refrigerant flow and heating within the low-pressure chamber 101 of the compressor 100 when the motor 107 of the compressor 100 is running and refrigerant is flowing in the thermal management system. The solid and dashed arrows represent the motor 107 operating modes: low-temperature cold start mode, normal start mode, low-temperature steady-state operation mode, and normal steady-state operation mode. In these modes, the low-temperature, low-pressure refrigerant from the thermal management system enters the compressor 100 through the suction channel 104. Most of the refrigerant flows sequentially through the heating device 105 and the motor 107 before entering the intake channel of the compressor 100. The remaining refrigerant flows directly through the motor 107 before entering the intake channel of the compressor 100. During this process, according to the control commands given by the control unit 401, the integrated electronic control device 106 selectively drives the heating device 105 to generate heating power and the motor 107 to generate additional heat, thereby achieving the purpose of heating the refrigerant.

[0092] The present invention also proposes a computer storage medium.

[0093] According to an embodiment of the present invention, a computer storage medium stores a computer program, which, when executed by a processor, implements the control method of the thermal management system described above.

[0094] The present invention also proposes a vehicle.

[0095] The vehicle according to the present invention includes a compressor 100 or a thermal management system. By setting the compressor 100 or thermal management system of the above embodiments, the vehicle can better control the temperature inside the vehicle in low-temperature environments, and the temperature control effect is good.

[0096] The compressor 100, thermal management system, control method of thermal management system, computer storage medium and other components and operation of the vehicle according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0097] In the description of this specification, references to terms such as "some embodiments," "optionally," "furthermore," 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 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.

[0098] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A compressor, characterized in that, include: The system includes a low-pressure chamber, a high-pressure chamber, and an electronically controlled chamber. The low-pressure chamber is sealed and connected to the high-pressure chamber and the electronically controlled chamber, respectively. The low-pressure chamber is connected to the high-pressure chamber. The low-pressure chamber is connected to an intake channel, and the high-pressure chamber is connected to an exhaust channel. A heating device and a motor are disposed in the low-pressure cavity; a compression mechanism is disposed in the high-pressure cavity; An integrated electronic control device is disposed within the electronic control cavity; wherein the integrated electronic control device can simultaneously and independently control the heating device and the motor.

2. A thermal management system, characterized in that, include: The compressor includes the compressor of claim 1; The compressor comprises a condenser, a liquid receiver, an evaporator, and a first throttle valve. The compressor's exhaust passage is connected to the condenser's inlet, the condenser's outlet is connected to the liquid receiver's inlet, the liquid receiver's outlet is connected to the first throttle valve's inlet, the first throttle valve's outlet is connected to the evaporator's inlet, and the evaporator's outlet is connected to the compressor's suction passage.

3. The thermal management system according to claim 2, characterized in that, Also includes: The second throttle valve has its inlet connected to the exhaust passage of the compressor and the inlet of the condenser; its outlet is connected to the suction passage of the compressor and the outlet of the evaporator.

4. The thermal management system according to claim 2, characterized in that, The condenser and / or the evaporator is a plate heat exchanger.

5. The thermal management system according to claim 2, characterized in that, Also includes: The coolant-side system includes a condenser with a first heat exchange tube and a second heat exchange tube that exchange heat with each other. The inlet of the first heat exchange tube is connected to the exhaust passage of the compressor, and the outlet of the first heat exchange tube is connected to the inlet of the liquid storage tank. The second heat exchange tube is connected to the coolant-side system. The evaporator has a third heat exchange tube and a fourth heat exchange tube that exchange heat with each other. The inlet of the third heat exchange tube is connected to the outlet of the first throttle valve, and the outlet of the third heat exchange tube is connected to the suction passage of the compressor. The fourth heat exchange tube is connected to the coolant-side system.

6. The thermal management system according to claim 2, characterized in that, Also includes: The device includes a temperature measuring device, a control unit, an internal wiring harness, and an external wiring harness. The temperature measuring device is located within the low-pressure cavity. The heating device, the motor, and the temperature measuring device are all connected to the integrated electronic control device via the internal wiring harness. The integrated electronic control device is connected to the control unit via the external wiring harness.

7. The thermal management system according to claim 6, characterized in that, The compressor is a vertical compressor, and the temperature measuring device is located above the motor and near the air intake of the compression mechanism.

8. The thermal management system according to claim 6, characterized in that, The compressor is a horizontal compressor, and the temperature measuring device is installed in the oil sump of the pressure chamber.

9. A control method for a thermal management system, used to control the thermal management system according to any one of claims 2-8, characterized in that, include: S1, Compressor preheating mode before startup, including: S11, the integrated electronic control device controls the heating device to heat the low-pressure cavity at a predetermined power; S12, the temperature inside the low-pressure cavity is determined; S13, when the temperature inside the low-pressure cavity is less than the specified temperature T1, return to S11; when the temperature inside the low-pressure cavity is greater than or equal to the specified temperature T1, proceed to S2; S2, Compressor startup mode, including: the integrated electronic control device controls the motor to rotate at a specified speed.

10. The control method for the thermal management system according to claim 9, characterized in that, The compressor's exhaust passage is connected to the condenser inlet, the condenser outlet is connected to the liquid receiver inlet, the liquid receiver outlet is connected to the first throttle valve inlet, the first throttle valve outlet is connected to the evaporator inlet, the evaporator outlet is connected to the compressor's suction passage, the second throttle valve inlet is connected to both the compressor's exhaust passage and the condenser inlet, and the second throttle valve outlet is connected to both the compressor's suction passage and the evaporator outlet. The compressor's start-up modes include: a low-temperature cold-drive mode, where the integrated electronic control device controls the motor to rotate at a specified speed; in this mode, both the first and second throttle valves are in a throttling state, and the refrigerant circulates; in this mode, the integrated electronic control device controls the heating device to operate at maximum power P0 until the thermal management system reaches a steady-state pressure and temperature; and / or a normal start-up mode, where the integrated electronic control device controls the motor to rotate at a specified speed; in this mode, the first throttle valve is in a throttling state, and both the second throttle valves are closed, and the refrigerant circulates. In the circulating flow mode, the integrated electronic control device controls the heating device to operate with a power P ≤ P0. The heating power P is adjusted in a closed loop based on the difference between the refrigerant superheat ΔT measured by the temperature measuring device and the set refrigerant superheat ΔT0. Alternatively, in the low-temperature steady-state operation mode, the integrated electronic control device controls the motor to rotate at a specified speed. At this time, both the first and second throttle valves are in a throttling state, and the refrigerant circulates. In this mode, the integrated electronic control device controls the heating device to operate with a power P ≤ P0. The difference between the compressor's discharge pressure Pd and the set compressor discharge pressure Pd,0 is used for closed-loop regulation, and / or, in a conventional steady-state operation mode, the integrated electronic control device controls the motor to rotate at a specified speed. At this time, the first throttle valve is in a throttling state, and both the second throttle valves are in a closed state, allowing the refrigerant to circulate. At this time, the integrated electronic control device controls the heating device to operate with a power P≤P0, and the heating power P is adjusted in a closed loop based on the difference between the refrigerant superheat ΔT measured by the temperature measuring device and the set refrigerant superheat ΔT0.

11. A computer storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the control method of the thermal management system as described in claim 9 or 10.

12. A vehicle, characterized in that, include: The thermal management system according to any one of claims 2-8.

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