Compressor, thermal management system and vehicle

Abstract

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 is connected with the high-pressure cavity and the electric control cavity in a sealed mode, the low-pressure cavity is communicated with the high-pressure cavity, the low-pressure cavity is connected with an air suction channel, and the high-pressure cavity is communicated with the integrated electric control device. 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 utility model, 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

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a compressor, a thermal management system and a vehicle. Background Art

[0002] With the continuous development of thermal management systems, higher and higher requirements are placed on thermal management systems, such as startup and operation in low-temperature environments. The thermal management systems in related technologies can start and operate well in low-temperature environments, but have complex structures and high costs. Utility Model Content

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

[0004] The utility model also provides a thermal management system.

[0005] The utility model also provides a vehicle.

[0006] According to the first aspect of the present invention, the compressor includes: a low-pressure cavity, a high-pressure cavity, an electronically controlled cavity, a heating device, a motor, a compression mechanism, and an integrated electronic control device. The low-pressure cavity is sealed and connected to the high-pressure cavity and the electronically controlled cavity, respectively. The low-pressure cavity is communicated with the high-pressure cavity. The low-pressure cavity is connected to an intake channel, and the high-pressure cavity is connected to 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 electronic control device is arranged in the electronic control cavity; wherein the integrated electronic control device can independently control the heating device and the motor at the same time.

[0007] According to the compressor of the embodiment of the present invention, a heating device is added, and the heating device and the motor are both arranged in the low-pressure cavity. The heating device and the motor can cooperate to heat the refrigerant in the low-pressure cavity, which can reduce the cost of the heating device. In addition, an integrated electronic control device is provided, and the integrated electronic control device can independently control the heating device and the motor, so that the compressor can be started well even in a low-temperature environment and can operate well after starting. In addition, the compressor of the present invention has a simple structure, and the production and operation costs are low.

[0008] The present application also proposes a thermal management system for a compressor having the above embodiment.

[0009] According to an embodiment of the present utility model, the thermal management system includes: a compressor, a condenser, a liquid storage tank, an evaporator, and a first throttle valve. The exhaust channel of the compressor is connected to the inlet of the condenser, the outlet of the condenser is connected to the inlet of the liquid storage tank, the outlet of the liquid storage tank is connected to the inlet of the first throttle valve, the outlet of the first throttle valve is connected to the inlet of the evaporator, and the outlet of the evaporator is connected to the intake channel of the compressor.

[0010] According to the thermal management system of the compressor in an embodiment of the present invention, a heating device and a compressor are provided in the low-pressure cavity of the compressor, an integrated electronic control device is arranged in the electronic control cavity, and the integrated electronic control device can independently control the heating device and the motor respectively, so that the compressor can be started well even in a low-temperature environment and can operate well after starting.

[0011] In some embodiments of the present invention, the thermal management system also includes: a second throttle valve, the inlet of the second throttle valve is connected to the exhaust channel of the compressor and the inlet of the condenser; the outlet of the second throttle valve is connected to the intake channel of the compressor and the outlet of the evaporator.

[0012] In some embodiments of the present invention, the condenser and / or the evaporator is a plate heat exchanger.

[0013] In some embodiments of the present invention, the thermal management system also includes: a coolant side system, the condenser has a first heat exchange tube and a second heat exchange tube for mutual heat exchange, the inlet of the first heat exchange tube is connected to the exhaust channel 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 for mutual heat exchange, 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 intake channel of the compressor, and the fourth heat exchange tube is connected to the coolant side system.

[0014] In some embodiments of the present invention, the thermal management system also 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, and the integrated electronic control device is connected to the control unit through the external wiring harness.

[0015] In some embodiments of the present invention, the compressor is a vertical compressor, and the temperature measuring device is arranged above the motor and adjacent to the air intake of the compression mechanism.

[0016] In some embodiments of the present invention, the compressor is a horizontal compressor, and the temperature measuring device is arranged in the oil pool of the pressure cavity.

[0017] The present utility model also provides a control method of the thermal management system having the above embodiment.

[0018] The control method of the thermal management system according to the embodiment of the present utility model includes: S1, a preheating mode before the compressor starts, including: S11, the integrated electronic control device controls the heating device to heat the low-pressure cavity with a predetermined power; S12, judging the temperature in the low-pressure cavity; S13, when the temperature in the low-pressure cavity is lower than the specified temperature T1, returning to S11; when the temperature in the low-pressure cavity is greater than or equal to the specified temperature T1, entering S2; S2, a compressor start-up mode, including: the integrated electronic control device controls the motor to rotate at a specified speed.

[0019] In some embodiments of the present invention, the exhaust channel of the compressor is connected to the inlet of the condenser, the outlet of the condenser is connected to the inlet of the liquid storage tank, the outlet of the liquid storage tank is connected to the inlet of the first throttle valve, the outlet of the first throttle valve is connected to the inlet of the evaporator, the outlet of the evaporator is connected to the suction channel of the compressor, the inlet of the second throttle valve is connected to the exhaust channel of the compressor and the inlet of the condenser, the outlet of the second throttle valve is connected to the suction channel of the compressor and the outlet of the evaporator, and the compressor start-up mode includes: low-temperature cold drive mode, including: the integrated electronic control device controls the motor to rotate at a specified speed, at this time, the first throttle valve and the second throttle valve are both in a throttling state, and the refrigerant circulates, and at this time the integrated electronic control device controls the heating device to rotate at maximum power P0 operation until the thermal management system reaches a steady-state pressure and temperature, and / or, a conventional startup 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, the second throttle valves are both in a closed state, and the refrigerant circulates, at this time, the integrated electronic control device controls the heating device to operate at a power P≤P0, and the heating power P is closed-loop regulated by the difference between the refrigerant superheat ΔT measured by the temperature measuring device and the set refrigerant superheat ΔT0, and / or, a low-temperature 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 and the second throttle valve are both in a throttling ... exhaust pressure P of the compressor. d and set compressor discharge pressure P d,0The difference is closed-loop regulated, and / or the conventional steady-state operation mode includes: 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 valves are both 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, and the heating power P is closed-loop regulated with the difference between the refrigerant superheat ΔT measured by the temperature measuring device and the set refrigerant superheat ΔT0.

[0020] The utility model also provides a computer storage medium.

[0021] According to the computer storage medium of the embodiment of the present invention, a computer program is stored on the computer storage medium, and when the computer program is executed by a processor, the control method of the thermal management system of the above embodiment is implemented.

[0022] The utility model also provides a vehicle.

[0023] According to the present invention, the vehicle includes a compressor or a thermal management system. By providing the compressor or thermal management system of the above embodiment, the vehicle can better control the temperature inside the vehicle in a low temperature environment, and the temperature control effect is good.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 Schematic diagram of the structure of a compressor in some embodiments.

[0027] Figure 2 is a schematic structural diagram of a thermal management system in some embodiments.

[0028] Figure 3 This is a schematic diagram of the position of the temperature measuring device in a vertical compressor in some embodiments.

[0029] Figure 4 This is a schematic diagram of the position of the temperature measuring device in a horizontal compressor in some embodiments.

[0030] Figure 5 is a schematic diagram of the refrigerant flow in the compressor of some embodiments.

[0031] Reference numerals:

[0032] 100, compressor; 101, low-pressure chamber; 102, high-pressure chamber; 103, electronic control chamber; 104, intake channel; 105, heating device; 106, integrated electronic control device; 107, motor; 108, exhaust channel; 109, compression mechanism; 201, condenser; 202, liquid storage tank; 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 DESCRIPTION

[0033] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0034] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0035] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0036] Reference below Figure 1-Figure 5 A compressor 100 according to an embodiment of the present invention will be described.

[0037] like Figure 1As shown, the compressor 100 according to an embodiment of the present invention includes a low-pressure cavity 101, a high-pressure cavity 102, an electric control cavity 103, a heating device 105, a motor 107, a compressor 100 structure, and an integrated electric control device 106. The low-pressure cavity 101 is sealedly connected to the high-pressure cavity 102 and the electric control cavity 103 respectively. The low-pressure cavity 101 is communicated with the high-pressure cavity 102. The low-pressure cavity 101 is connected to an intake channel 104, and the high-pressure cavity 102 is connected to an exhaust channel 108. The heating device 105 and the motor 107 are arranged in the low-pressure cavity 101, the compressor 100 structure is arranged in the high-pressure cavity 102, and the integrated electric control device 106 is arranged in the electric control cavity 103. The integrated electric control device 106 can independently control the heating device 105 and the motor 107 at the same time.

[0038] For example, in the first case, 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 cavity 101 from the intake channel 104. After the refrigerant enters the low-pressure cavity 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 cavity 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 air intake channel of the compressor 100 through the motor 107. A small amount of refrigerant can directly flow through the motor 107 after the low-pressure cavity 101, and then enter the air intake channel of the compressor 100 through the motor 107.

[0039] For example, in the second case, the integrated electronic control device 106 can independently control the speed of the motor 107, for example, control the motor 107 to be in a stall mode, so that heat is generated inside 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 by the motor 107 when flowing through the motor 107.

[0040] For example, in the third case, the integrated electronic control device 106 can simultaneously control the heat generation of the heating device 105 and control the heat generation inside 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.

[0041] In the above example, during the process of the refrigerant being in the low-pressure cavity 101 , the integrated electronic control device 106 controls the heating device 105 and the motor 107 , so that the refrigerant can be heated well.

[0042] In addition, since the refrigerant in the present invention can be heated by the heating device 105 and its temperature rises after entering the low-pressure cavity 101, the power of the motor 107 will increase when the heated refrigerant passes through the motor 107. Specifically, take the following example: the temperature of the original refrigerant is T0, and the heating amplitude of the refrigerant flowing through the heating device 105 by the heating device 105 is T1. At this time, the temperature of the refrigerant is T0+T1. When the refrigerant with a temperature of T0+T1 flows through the motor 107, the power of the motor 107 will be increased compared to the refrigerant with a temperature of T0, so that the motor 107 can generate more heat to heat the refrigerant. For example, the refrigerant with a temperature of T0 flows through the motor 107, and the motor 107 can make the refrigerant heating amplitude T 2. When the refrigerant with a temperature of T0+T1 flows through the motor 107, the heating amplitude of the refrigerant is T3. Here, T3 is greater than T2, and T3 is also greater than T1. That is to say, as long as the heating device 105 heats the refrigerant first, the heated refrigerant flows through the motor 107, and the motor 107 can heat the refrigerant to a higher temperature. Therefore, by utilizing this rule, the heating device 105 only needs a smaller operating power to heat the refrigerant to a predetermined temperature, which can reduce the heating pressure of the heating device 105 on the refrigerant, and can also reduce the operating power of the heating device 105. For example, the temperature amplitude required to heat the refrigerant is 10 degrees Celsius if only the heating device 105 heats the refrigerant. In the past, the heating device 105 needed to operate at a relatively large power to achieve a 10-degree Celsius temperature increase. However, with the participation of the motor 107, the heating device 105 only needs to heat the refrigerant by 3 degrees Celsius, and the remaining 7 degrees Celsius of heating can be achieved by the heating of the motor 107. It can be seen that the heating device 105 only needs a relatively small power to achieve a 3-degree Celsius temperature increase for heating the refrigerant. As a result, the cost of the heating device 105 can be reduced.

[0043] For 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 be started well even in a low temperature state and can also operate well after starting.

[0044] Moreover, the PTC heating scheme integrated inside the low-pressure cavity 101 of the compressor 100 involved in the present invention can be integrated with the electrical 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 electrical control cavity 103, thereby improving the integrated design of the compressor 100. Therefore, during large-scale production, it is not necessary to separately produce and assemble the control components of the heating device 105, which can effectively reduce production costs.

[0045] Therefore, according to the compressor 100 of the embodiment of the present invention, by adding a heating device 105, and arranging the heating device 105 and the motor 107 in the low-pressure cavity 101, the heating device 105 and the motor 107 can cooperate to heat the refrigerant in the low-pressure cavity 101, which can reduce the cost of the heating device 105, and by arranging the integrated electronic control device 106, and enabling the integrated electronic control device 106 to independently control the heating device 105 and the motor 107, the compressor 100 can be started well even in a low-temperature environment and can also operate well after starting. In addition, the compressor 100 of the present invention has a simple structure, and the production and operation costs are relatively low.

[0046] For example, the heating device 105 may be a PTC heating device, a thermal resistance heating device, an electromagnetic induction heating device, a thin film heating device, etc., which is not limited in this application. For example, the heating device 105 may change in temperature as the power changes.

[0047] Exemplarily, the integrated electronic control device 106 can independently control the heating device 105 and the motor 107 at the same time. The integrated electronic control device 106 can adjust the power of the heating device 105. The integrated electronic control device 106 can adjust the speed of the motor 107. The heating device 105 can heat the refrigerant inside the low-pressure cavity 101. The motor 107 is driven and controlled by the integrated electronic control device 106 to drive the compressor 100 to compress the low-pressure refrigerant into high-pressure refrigerant.

[0048] Generally, the cost of independent PTC heaters on the market is relatively high, because independent PTC heaters often require high power of more than 5kW and require an independent control module. However, the PTC heating solution designed in the present invention and integrated into the low-pressure cavity 101 of the compressor 100 can be integrated with the original compressor 100's own electronic control, which can greatly reduce costs. Moreover, since the heating device 105 in the low-pressure cavity 101 of the present invention can bring about an increase in system pressure under low-temperature cold start and low-temperature steady-state operation modes, it can bring about an increase in the power of the motor 107 of the compressor 100. Therefore, the increase in the power of the compressor 100 and the heating capacity of the thermal management system (both power and heat units are watts, so they can be directly added) brought by the heating device 105 is much greater than the heat generated by the heating device 105 itself, which can reduce the design value of the PTC power and further reduce costs.

[0049] In addition, with the development of the new energy vehicle industry and technological advancements, the thermal management system of new energy vehicles has become increasingly complex, but it also faces many technical problems. Among them, how to solve the problem of poor heating performance of the heat pump air-conditioning system of new energy vehicles in low-temperature environments is the most core technical difficulty of the thermal management system. Although the existing solutions such as PTC heaters on the market are simple, easy to control and have fast response, the cost and energy consumption are very high. Technical solutions such as the use of compressor 100 hot gas bypass cycle and delta cycle that rely on the power of the compressor 100 to achieve low-temperature heating have problems such as long start-up time and poor reliability. Therefore, it is necessary to propose a low-cost, fast-response and reliable low-temperature heating solution.

[0050] Based on this, the present application also proposes a thermal management system of the compressor 100 having the above embodiment.

[0051] like Figure 2 As shown, the thermal management system according to an embodiment of the present invention includes a compressor 100, a condenser 201, a liquid storage tank 202, an evaporator 203 and a first throttle valve 204. The exhaust channel 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 storage tank 202, the outlet of the liquid storage tank 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 intake channel 104 of the compressor 100.

[0052] For example, when refrigerant flows in the thermal management system, inside the compressor 100, the refrigerant can enter the low-pressure cavity 101 from the intake channel 104, and the refrigerant entering the low-pressure cavity 101 can be heated by the heating device 105 and / or the motor 107, and then the heated refrigerant can enter the compression structure in the high-pressure cavity 102, and then enter the high-pressure cavity 102 from the compressor 100 structure, and then be discharged from the exhaust channel 108 of the high-pressure cavity 102. The refrigerant discharged from the exhaust channel 108 can flow through the condenser 201, the liquid storage tank 202, and the first throttle valve 204 in sequence, and then enter the compressor 100 from the intake channel 104 of the compressor 100.

[0053] In the above technical solution, a heating device 105 and a compressor 100 are provided in the low-pressure cavity 101 of the compressor 100, and an integrated electronic control device 106 is arranged in the electronic control cavity 103, and the integrated electronic control device 106 can independently control the heating device 105 and the motor 107, so that the compressor 100 can be started well even in a low-temperature environment and can operate well after starting.

[0054] Specifically, the compressor 100 has a preheating mode before startup, a low-temperature cold startup mode, a normal startup mode, a low-temperature steady-state operation mode, and a normal steady-state operation mode.

[0055] Furthermore, the preheating mode before the compressor 100 starts includes: the integrated electronic control device 106 controls the heating device 105 to heat the low-pressure cavity 101 with a predetermined power; judges the temperature inside the low-pressure cavity 101; when the temperature inside the low-pressure cavity 101 is lower than the specified temperature T1, the integrated electronic control device 106 controls 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 the compressor 100 starts is completed.

[0056] The specific control content is: in the preheating mode before the compressor 100 starts, the integrated electronic control device 106 controls the motor 107 not to rotate, and can selectively put the motor 107 in a stalled 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 with a specified power. When the temperature set in the low-pressure cavity 101101 reaches a certain specified temperature T1, it is determined that the preheating before starting is completed, and the motor 107 can be switched 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 start-up.

[0057] 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 the maximum power P0 until the system reaches a steady-state pressure and temperature.

[0058] In the normal startup 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 a power P≤P0, and the heating power P is closed-loop adjusted based on the difference between the refrigerant superheat ΔT measured by the temperature measuring device 110 and the set refrigerant superheat ΔT0.

[0059] 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 at a power P≤P0, and the heating power P is closed-loop regulated by the difference between the exhaust pressure Pd of the compressor 100 and the set compressor 100 exhaust pressure Pd,0.

[0060] 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 at a power P≤P0, and the heating power P is closed-loop adjusted based on the difference between the refrigerant superheat ΔT measured by the temperature measuring device 110 and the set refrigerant superheat ΔT0.

[0061] From the above content, it can be seen that the thermal management system of the embodiment of the present 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 the present invention can reduce costs, improve response speed and reliability as a whole.

[0062] In some embodiments of the present invention, the thermal management system also includes: a second throttle valve 205, the inlet of the second throttle valve 205 is connected to the exhaust channel 108 of the compressor 100 and the inlet of the condenser 201; the outlet of the second throttle valve 205 is connected to the intake channel 104 of the compressor 100 and the outlet of the evaporator 203.

[0063] For example, after the preheating mode before the compressor 100 is started is completed, 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 the 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 a steady-state pressure and temperature.

[0064] In the normal startup 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. The refrigerant can circulate. At this time, the integrated electronic control device 106 controls the heating device 105 to operate at a power P≤P0, and the heating power P is closed-loop adjusted based on the difference between the refrigerant superheat ΔT measured by the temperature measuring device 110 and the set refrigerant superheat ΔT0.

[0065] 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 the throttling state, and the refrigerant can circulate. At this time, the integrated electronic control device 106 controls the heating device 105 to operate at a power P≤P0, and the heating power P is closed-loop regulated by the difference between the exhaust pressure Pd of the compressor 100 and the set compressor 100 exhaust pressure Pd,0.

[0066] 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. The refrigerant can circulate. At this time, the integrated electronic control device 106 controls the heating device 105 to operate at a power P≤P0, and the heating power P is closed-loop adjusted based on the difference between the refrigerant superheat ΔT measured by the temperature measuring device 110 and the set refrigerant superheat ΔT0.

[0067] In some embodiments of the present invention, the condenser 201 and / or the evaporator 203 is a plate heat exchanger.

[0068] A plate heat exchanger is a highly efficient heat exchange device that transfers heat through contact between metal plates that form channels for fluid flow. Plate heat exchangers are compact and offer high heat transfer efficiency.

[0069] Exemplarily, the condenser 201 is a plate heat exchanger; exemplary, the evaporator 203 is a plate heat exchanger; exemplary, both the condenser 201 and the evaporator 203 are plate heat exchangers.

[0070] In the above example, by making the condenser 201 and the evaporator 203 plate-type heat exchangers, the compactness of the entire thermal management system can be improved.

[0071] In some embodiments of the present invention, Figure 2 As shown, the thermal management system further includes: a coolant-side system 301. The condenser 201 has a first heat exchange tube and a second heat exchange tube for mutual heat exchange. The inlet of the first heat exchange tube is connected to the exhaust passage 108 of the compressor 100, the outlet of the first heat exchange tube is connected to the inlet of the liquid storage tank 202, and the second heat exchange tube is connected to the coolant-side system 301. The evaporator 203 has a third heat exchange tube and a fourth heat exchange tube for mutual heat exchange. The inlet of the third heat exchange tube is connected to the outlet of the first throttle valve 204, the outlet of the third heat exchange tube is connected to the intake passage 104 of the compressor 100, and the fourth heat exchange tube is connected to the coolant-side system 301. In other words, the coolant-side heat exchange flow paths of the evaporator 203 and the condenser 201 are both 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.

[0072] In some embodiments of the present invention, Figure 3 As shown, the thermal management system also 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, and 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, and the integrated electronic control device 106 is connected to the control unit 401 through the external wiring harness 112.

[0073] There can be multiple temperature measuring devices 110 , and they can be flexibly arranged at various positions in the low-pressure cavity 101 , and can collect the temperature of the refrigerant and / or lubricating oil in the low-pressure cavity 101 .

[0074] Temperature measurement device 110, located within low-pressure chamber 101, monitors the temperature within low-pressure chamber 101 and provides critical temperature data for the thermal management system. This configuration not only ensures the safe operation of equipment within low-pressure chamber 101, preventing various hazards caused by overheating, but also provides a basis for overall thermal management optimization.

[0075] 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 compact and orderly and able to transmit signals stably. The stable signal transmission ensures the coordination between the various components. The integrated electronic control device 106 can accurately control the heating device 105 and the motor 107 based on the data of the temperature measuring device 110 to achieve efficient thermal management operation, and the compact wiring saves space.

[0076] External wiring harness 112 connects the integrated electronic control unit 106 and control unit 401, providing flexibility in the thermal management system's layout. This allows control unit 401 to be strategically placed as needed, facilitating operation and monitoring. Furthermore, this connection enables control unit 401 to centrally manage the entire thermal management system. Under the coordination of control unit 401, the thermal management system maintains optimal thermal performance under varying operating conditions, ensuring coordinated operation of all components and thus ensuring stable operation of the entire device.

[0077] In some embodiments of the present invention, the compressor 100 is a vertical compressor, and the temperature measuring device 110 is disposed above the motor 107 and adjacent to the air intake of the compressor 100 .

[0078] exist Figure 3In the vertical vertical compressor diagram, 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 cavity 101 can be measured. When a large amount of liquid refrigerant is deposited in the low-pressure cavity 101, the temperature measuring device 110 should measure the refrigerant saturation temperature Ti corresponding to the pressure Pi inside the low-pressure cavity 101. Before the heating device 105 is started, this temperature is also equivalent to the ambient temperature of the compressor 100. At this time, if the motor 107 is started directly, a large amount of liquid refrigerant in the low-pressure cavity 101 may directly enter the compressor 100, causing liquid hammer, lubrication damage and other steady states that are detrimental to the reliability of the compressor 100. Therefore, it is necessary to heat the low-pressure cavity 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, and the pressure in the cavity may increase. When the liquid refrigerant is completely evaporated / boiled and converted into gas, the gaseous refrigerant at the position of the temperature measuring device 110 may have obvious suction superheat. At this time, the temperature measured by the temperature measuring device 110 is Ti,2, and the internal pressure of the low-pressure cavity 101 is Pi,2. The refrigerant saturation temperature corresponding to this pressure is Ti,s,2, then ΔT=Ti,2-Ti,s,2>0, and a target superheat ΔT0 is usually set. When the measured superheat satisfies ΔT>ΔT0, the motor 107 can be started.

[0079] 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 pool of the compression cavity.

[0080] exist Figure 4 In the horizontal compressor schematic, temperature measuring device 110 is installed below oil level 113 in low-pressure chamber 101 (or within the oil sump of low-pressure chamber 101). Similarly, activating heating device 105 heats the mixture of lubricating oil and deposited liquid refrigerant in the oil sump, evaporating the liquid refrigerant and raising the temperature of the lubricating oil. At this point, the oil sump temperature target value, Toil,0, is set. When temperature measuring device 110 reports that oil temperature Toil > Toil,0 (> initial ambient temperature), motor 107 is allowed to start.

[0081] The present utility model also provides a control method of the thermal management system having the above embodiment.

[0082] The control method of the thermal management system according to the embodiment of the present invention includes: S1, preheating mode before the compressor 100 starts, and the preheating mode before the compressor starts 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, judges the temperature in the low-pressure cavity 101; S13, when the temperature in the low-pressure cavity 101 is lower than the specified temperature T1, returns to S11; when the temperature in the low-pressure cavity 101 is greater than or equal to the specified temperature T1, enters S2; S2, compressor 100 start-up mode, the compressor 100 start-up mode includes: the integrated electronic control device 106 controls the motor 107 to rotate at a specified speed.

[0083] According to the control method of the thermal management system of the embodiment of the present invention, through the heating device 105, the heating device 105 and the motor 107 can cooperate to heat the refrigerant in the low-pressure cavity 101, which can reduce the cost of the heating device 105, and also by providing an integrated electronic control device 106, and enabling the integrated electronic control device 106 to independently control the heating device 105 and the motor 107, the compressor 100 can be started well even in a low temperature environment and can also run well after starting.

[0084] In some embodiments of the present invention, the exhaust channel 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 storage tank 202, the outlet of the liquid storage tank 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 intake channel 104 of the compressor 100, the inlet of the second throttle valve 205 is connected to the exhaust channel 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 intake channel 104 of the compressor 100 and the outlet of the evaporator 203.

[0085] Exemplarily, the start-up mode of the compressor 100 includes: a low-temperature cold drive mode, and the low-temperature cold drive mode 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 temperature.

[0086] Exemplarily, the start-up mode of the compressor 100 includes: a normal start-up mode, and the normal start-up mode 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, and the heating power P is closed-loop adjusted based on the difference between the refrigerant superheat ΔT measured by the temperature measuring device 110 and the set refrigerant superheat ΔT0.

[0087] Exemplarily, the startup mode of the compressor 100 includes: a low-temperature steady-state operation mode, and the low-temperature steady-state operation mode 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 a power P≤P0, and the heating power P is closed-loop adjusted based on the difference between the exhaust pressure Pd of the compressor 100 and the set compressor 100 exhaust pressure Pd,0.

[0088] Exemplarily, the startup mode of the compressor 100 includes: a conventional steady-state operation mode, including: the conventional steady-state operation mode 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, 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 at a power P≤P0, and the heating power P is closed-loop adjusted based on the difference between the refrigerant superheat ΔT measured by the temperature measuring device 110 and the set refrigerant superheat ΔT0.

[0089] like Figure 5 As shown, when the motor 107 of the compressor 100 is running and the refrigerant flows in the thermal management system, the refrigerant flow and heating conditions in the low-pressure cavity 101 inside the compressor 100 are shown in the solid arrows and dotted arrows. Corresponding to the low-temperature cold start mode, normal start mode, low-temperature steady-state operation mode, normal steady-state operation mode and other motor 107 operation modes. In these modes, the low-temperature and low-pressure refrigerant of the thermal management system enters the compressor 100 from the intake channel 104, and most of the refrigerant flows through the heating device 105 and the motor 107 in sequence and then enters the intake channel of the compressor 100, and the remaining refrigerant flows directly through the motor 107 and then enters the intake channel of the compressor 100. In this process, according to the control instructions 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.

[0090] The utility model also provides a computer storage medium.

[0091] According to the computer storage medium of the embodiment of the present invention, a computer program is stored on the computer storage medium, and when the computer program is executed by a processor, the control method of the thermal management system of the above embodiment is implemented.

[0092] The utility model also provides a vehicle.

[0093] According to the present invention, the vehicle includes a compressor 100 or a thermal management system. By providing the compressor 100 or the thermal management system of the above embodiment, the vehicle can better control the temperature inside the vehicle in a low temperature environment, and the temperature control effect is good.

[0094] The compressor 100 , the thermal management system, the control method of the thermal management system, the computer storage medium and other components and operations of the vehicle according to the embodiment of the present invention are well known to those skilled in the art and will not be described in detail here.

[0095] Throughout this specification, references to terms such as "some embodiments," "optionally," "further," or "some examples" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations 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 any one or more embodiments or examples.

[0096] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A compressor, characterized in that: include: A low-pressure cavity, a high-pressure cavity and an electronically controlled cavity, wherein the low-pressure cavity is sealedly connected to the high-pressure cavity and the electronically controlled cavity respectively, the low-pressure cavity is in communication with the high-pressure cavity, the low-pressure cavity is connected to an air intake channel, and the high-pressure cavity is connected to an air exhaust channel; A heating device and a motor, wherein the heating device and the motor are arranged in the low-pressure cavity; A compression mechanism, the compression mechanism being disposed in the high-pressure cavity; An integrated electronic control device is provided in the electronic control cavity; wherein, The integrated electronic control device can independently control the heating device and the motor simultaneously.

2. A thermal management system, characterized in that: include: A compressor, comprising the compressor according to claim 1; Condenser, liquid storage tank, evaporator, first throttle 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 storage tank, the outlet of the liquid storage tank is connected to the inlet of the first throttle valve, the outlet of the first throttle valve is connected to the inlet of the evaporator, and the outlet of the evaporator is connected to the suction passage of the compressor.

3. The thermal management system according to claim 2, characterized in that: Also includes: Second throttle valve, The inlet of the second throttle valve is in communication with the exhaust passage of the compressor and the inlet of the condenser; An outlet of the second throttle valve is communicated with a suction passage of the compressor and an 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: Coolant side system, The condenser comprises a first heat exchange tube and a second heat exchange tube for exchanging 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 for mutual heat exchange. 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 intake channel of the compressor, and 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: A temperature measuring device, a control unit, an internal wiring harness and an external wiring harness, wherein 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, and the integrated electronic control device is connected to the control unit through 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 arranged above the motor and adjacent to the air intake of the compression mechanism.

8. The thermal management system according to claim 6, wherein: The compressor is a horizontal compressor, and the temperature measuring device is arranged in the oil pool of the pressure cavity.

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

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