Plate heat exchanger and vehicle with same

Abstract

The utility model provides a plate heat exchanger and a vehicle with the same, and relates to the technical field of batteries. The plate heat exchanger comprises a heat exchanger body, a refrigerant loop is arranged in the heat exchanger body, and a refrigerant inlet pipeline and a refrigerant outlet pipeline which are both communicated with the refrigerant loop are arranged on the heat exchanger body; the temperature and pressure sensor is arranged on the refrigerant outlet pipeline; the pressure sensor is arranged on the refrigerant inlet pipeline; the heat exchanger body is further provided with an electronic expansion valve, the electronic expansion valve communicates with the refrigerant loop, and the electronic expansion valve is used for controlling the refrigerant flow of the refrigerant loop according to a detection signal of the temperature and pressure sensor. By applying the technical scheme, the situation that the temperature sensor and the pressure sensor are far away from the plate heat exchanger and cannot accurately detect the temperature is avoided, the refrigerating capacity of the plate heat exchanger is more accurately controlled, and the refrigerating effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and more specifically, to a plate heat exchanger and a vehicle having the same. Background Art

[0002] As the most important component in an electric vehicle, the battery provides the power required for the electric vehicle to travel. Ensuring that the battery operates within the optimal working range, that is, ensuring the battery's cruising range, is very important for the performance of the entire vehicle. It is necessary to cool the battery through an efficient and precise thermal management system.

[0003] Currently, in the prior art, battery cooling mainly adopts an indirect cooling method with an intermediate heat exchanger. Components such as the intermediate heat exchanger and temperature and pressure sensors in the battery thermal management system are arranged separately. The air conditioning system controls the opening degree of the expansion valve by collecting the parameters of the temperature and pressure sensors to achieve the function of cooling the battery. However, when the sensors are arranged on the air conditioning pipeline, the distance between the sensors and the intermediate heat exchanger is often too far due to the limitations of the surrounding environment, affecting the accuracy of the control of the cooling capacity. Summary of the Utility Model

[0004] The main purpose of the present utility model is to provide a plate heat exchanger and a vehicle having the same, so as to solve the problem that the distance between the sensor and the intermediate heat exchanger is relatively far in the prior art.

[0005] To achieve the above object, according to one aspect of the present utility model, there is provided a plate heat exchanger, including: a heat exchanger body, a refrigerant circuit is arranged inside the heat exchanger body, and a refrigerant inlet pipeline and a refrigerant outlet pipeline that are both communicated with the refrigerant circuit are arranged on the heat exchanger body; a temperature and pressure sensor, which is arranged on the refrigerant outlet pipeline and is used to detect the temperature of the refrigerant in the refrigerant outlet pipeline; a pressure sensor, which is arranged on the refrigerant inlet pipeline and is used to detect the pressure of the refrigerant in the refrigerant inlet pipeline; wherein, an electronic expansion valve is further arranged on the heat exchanger body, the electronic expansion valve is communicated with the refrigerant circuit, and the electronic expansion valve is used to control the refrigerant flow rate of the refrigerant circuit according to the detection signal of the temperature and pressure sensor.

[0006] Further, the electronic expansion valve is integrally arranged on the refrigerant inlet pipeline.

[0007] Further, a charging valve pipeline is integrally arranged on the refrigerant outlet pipeline, and the charging valve pipeline is communicated with the refrigerant circuit.

[0008] Further, a cooling medium circuit is further arranged inside the heat exchanger body, the cooling medium circuit is independently arranged from the refrigerant circuit, and a cooling medium inlet pipeline and a cooling medium outlet pipeline that are both communicated with the cooling medium circuit are arranged on the heat exchanger body.

[0009] Further, both the cooling medium inlet pipeline and the cooling medium outlet pipeline are arranged on the first side of the heat exchanger body along the first direction, and both the refrigerant inlet pipeline and the refrigerant outlet pipeline are arranged on the second side of the heat exchanger body opposite to the first side along the first direction, where the first direction is the length direction or the width direction of the heat exchanger body.

[0010] Further, at least one of the cooling medium inlet pipeline, the cooling medium outlet pipeline, the refrigerant inlet pipeline, and the refrigerant outlet pipeline is integrally formed with the heat exchanger body.

[0011] Further, both the cooling medium inlet pipeline and the cooling medium outlet pipeline are connected to the first side of the heat exchanger body along the second direction, and both the refrigerant inlet pipeline and the refrigerant outlet pipeline are arranged on the second side of the heat exchanger body opposite to the first side along the second direction, where the second direction is the thickness direction of the heat exchanger body.

[0012] Further, at least one of the cooling medium inlet pipeline, the cooling medium outlet pipeline, the refrigerant inlet pipeline, and the refrigerant outlet pipeline is communicated with an external liquid supply circuit through a quick connector or a bolt pressing plate type connector.

[0013] Further, the extending direction of the axis of the refrigerant outlet pipeline, the extending direction of the geometric center line of the temperature and pressure sensor, and the extending direction of the axis of the charging valve pipeline are arranged perpendicular to each other pairwise.

[0014] According to another aspect of the present invention, a vehicle is provided, and the vehicle includes a plate heat exchanger, and the plate heat exchanger is the above-mentioned plate heat exchanger.

[0015] Applying the technical solution of the present invention, the plate heat exchanger is provided with a refrigerant circuit, an electronic expansion valve, and a temperature and pressure sensor on the heat exchanger body. The electronic expansion valve is communicated with the refrigerant circuit and controls the refrigerant flow rate of the refrigerant circuit according to the detection signal of the temperature and pressure sensor, avoiding the situation that the temperature sensor and the pressure sensor are too far away from the plate heat exchanger to accurately detect the temperature, more precisely controlling the refrigerating capacity of the plate heat exchanger, and improving the refrigeration effect. Description of the Drawings

[0016] The specification drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0017] Figure 1 The structural schematic diagram of the first embodiment of the plate heat exchanger according to the present invention is shown;

[0018] Figure 2 The structural schematic diagram of the second embodiment of the plate heat exchanger according to the present invention is shown;

[0019] Figure 3 Shows a schematic structural diagram of a third embodiment of a plate heat exchanger according to the present utility model.

[0020] Among them, the above-mentioned drawings include the following reference numerals:

[0021] 1. Heat exchanger body; 2. Temperature and pressure sensor; 3. Charging valve pipeline; 4. Pressure sensor; 5. Electronic expansion valve; 6. Cooling medium inlet pipeline; 7. Cooling medium outlet pipeline; 8. Refrigerant inlet pipeline; 9. Refrigerant outlet pipeline; 10. Rubber gasket. Specific embodiments

[0022] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0023] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0024] It should be noted that the terms "first", "second", etc. in the description, claims and drawings of the present application are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0025] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many different forms and should not be construed as being limited only to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of the present application is thorough and complete, and the concept of these exemplary embodiments is fully conveyed to those of ordinary skill in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and thus their description will be omitted.

[0026] Combined with Figures 1 to 3 As shown, according to a specific embodiment of the present application, a plate heat exchanger is provided.

[0027] Specifically, as Figures 1 to 3 shown, the plate heat exchanger includes a heat exchanger body 1, a temperature and pressure sensor 2, and a pressure sensor 4. A refrigerant circuit is provided in the heat exchanger body 1, and a refrigerant inlet pipe 8 and a refrigerant outlet pipe 9 that are both communicated with the refrigerant circuit are provided on the heat exchanger body 1; the temperature and pressure sensor 2 is disposed on the refrigerant outlet pipe 9, and the temperature and pressure sensor 2 is used to detect the temperature of the refrigerant in the refrigerant outlet pipe 9; the pressure sensor 4 is disposed on the refrigerant inlet pipe 8, and the pressure sensor 4 is used to detect the pressure of the refrigerant in the refrigerant inlet pipe 8; wherein, an electronic expansion valve 5 is further provided on the heat exchanger body 1, the electronic expansion valve 5 is communicated with the refrigerant circuit, and the electronic expansion valve 5 controls the refrigerant flow rate of the refrigerant circuit according to the detection signal of the temperature and pressure sensor 2.

[0028] Applying the technical solution of this embodiment, the plate heat exchanger is provided with a refrigerant circuit, an electronic expansion valve 5, and a temperature and pressure sensor 2 on the heat exchanger body 1. The electronic expansion valve 5 is communicated with the refrigerant circuit and controls the refrigerant flow rate of the refrigerant circuit according to the detection signal of the temperature and pressure sensor 2, avoiding the situation that the temperature and pressure sensor 2 and the pressure sensor 4 are too far away from the plate heat exchanger to accurately detect the temperature, more precisely controlling the refrigerating capacity of the plate heat exchanger, and improving the refrigeration effect.

[0029] Specifically, the electronic expansion valve 5 is integrally disposed on the refrigerant inlet pipe 8. Such a setting can make the electronic expansion valve 5 more conveniently communicated with the refrigerant circuit, saving the layout space and making the air-conditioning system more compact. Further, a charging valve pipe 3 is integrally disposed on the refrigerant outlet pipe 9, and the charging valve pipe 3 is communicated with the refrigerant circuit. Such a setting can eliminate or reduce the number of pipes, and at the same time solve the problem of the long pipe due to the arrangement of the temperature and pressure sensor 2 and the charging valve on the pipe.

[0030] Furthermore, a cooling medium circuit is also provided inside the heat exchanger body 1. The cooling medium circuit is independently arranged from the refrigerant circuit. A cooling medium inlet pipe 6 and a cooling medium outlet pipe 7 that are both connected to the cooling medium circuit are provided on the heat exchanger body 1. Such an arrangement separates the cooling medium from the refrigerant to exchange and control the cooling and thermal management of the battery system. The cooling medium can cool the battery and is applicable to the indirect cooling thermal management system of the battery.

[0031] It should be noted that the flow directions of the cooling medium and the refrigerant in the cooling medium circuit and the refrigerant circuit are opposite. The cooling medium circuit and the refrigerant circuit are both arranged on the heat exchanger body 1, and the refrigerant and the cooling medium exchange heat.

[0032] Specifically, as Figure 1 shown, both the cooling medium inlet pipe 6 and the cooling medium outlet pipe 7 are arranged on the first side of the heat exchanger body 1 along the first direction, and both the refrigerant inlet pipe 8 and the refrigerant outlet pipe 9 are arranged on the second side of the heat exchanger body 1 opposite to the first side along the first direction. The first direction is the length direction or the width direction of the heat exchanger body 1. Such an arrangement can distinguish the cooling medium circuit and the refrigerant circuit through opposite directions, avoiding misconnection of each cooling medium or refrigerant to the wrong circuit.

[0033] It should be noted that the first side and the second side opposite to the first side in the first direction can also be set as the directions of two mutually perpendicular planes. As Figure 2 and Figure 3 shown, the plane where the cooling medium inlet pipe 6 and the cooling medium outlet pipe 7 are located is perpendicular to the plane where the refrigerant inlet pipe 8 and the refrigerant outlet pipe 9 are located.

[0034] Among them, at least one of the cooling medium inlet pipe 6, the cooling medium outlet pipe 7, the refrigerant inlet pipe 8, and the refrigerant outlet pipe 9 is integrally formed with the heat exchanger body 1. Such an arrangement can freely shorten the interface of a certain pipe according to the layout requirements, and at the same time can flexibly change the position of a certain interface on the heat exchanger body 1 to adapt to a variety of different vehicle models.

[0035] In an embodiment of the present application, the cooling medium inlet pipe 6, the cooling medium outlet pipe 7, the refrigerant inlet pipe 8, and the refrigerant outlet pipe 9 are all integrally formed on the heat exchanger body. Such an arrangement can make the structure of the heat exchanger body 1 more compact, save more space costs, and at the same time make the control accuracy of battery cooling higher.

[0036] In a demonstrative embodiment of the present application, as Figure 2 and Figure 3As shown, the cooling medium inlet pipeline 6 and the cooling medium outlet pipeline 7 are both connected to the first side of the heat exchanger body 1 along the second direction, and the refrigerant inlet pipeline 8 and the refrigerant outlet pipeline 9 are both arranged on the second side of the heat exchanger body 1 opposite to the first side along the second direction, where the second direction is the thickness direction of the heat exchanger body 1. Such an arrangement can adjust the layout position of the cooling medium circuit according to the requirements of different vehicle models.

[0037] Specifically, at least one of the cooling medium inlet pipeline 6, the cooling medium outlet pipeline 7, the refrigerant inlet pipeline 8, and the refrigerant outlet pipeline 9 is connected to the external liquid supply circuit through a quick connector or a bolt pressing plate type connector. Using a quick connector can quickly and conveniently connect and disconnect the connection with the external liquid supply circuit, saving labor costs, while using a bolt pressing plate type connector can stably connect with the external liquid supply circuit, making the connection of the pipeline more reliable and having stronger sealing performance.

[0038] It should be noted that any one of the cooling medium inlet pipeline 6, the cooling medium outlet pipeline 7, the refrigerant inlet pipeline 8, and the refrigerant outlet pipeline 9 can select a quick connector or a bolt pressing plate type connector to connect with the external liquid supply circuit according to different external working environments, with stronger flexibility.

[0039] Furthermore, the extending direction of the axis of the refrigerant outlet pipeline 9, the extending direction of the geometric center line of the temperature and pressure sensor 2, and the extending direction of the axis of the charging valve pipeline 3 are set perpendicular to each other pairwise. Such an arrangement can facilitate the non-interference between the refrigerant outlet pipeline 9, the charging valve pipeline 3, and the temperature and pressure sensor 2 during assembly and operation.

[0040] According to another specific embodiment of the present application, a vehicle is further provided, including a plate heat exchanger, and the plate heat exchanger is the plate heat exchanger in the above embodiment.

[0041] Preferably, the vehicle is an electric vehicle or a hybrid electric vehicle.

[0042] An oil vehicle, also known as an internal combustion engine vehicle, refers to a vehicle that uses an internal combustion engine as the power source. The internal combustion engine usually uses gasoline or diesel as fuel. It has the following characteristics:

[0043] Drive mode: Generate power by burning fuel in the internal combustion engine to drive the vehicle.

[0044] Energy source: Mainly rely on petroleum products such as gasoline and diesel.

[0045] Environmental impact: Burning fuel will produce tail gas emissions, causing certain pollution to the environment.

[0046] Endurance mileage: Usually has a longer endurance mileage and fast refueling speed.

[0047] Maintenance cost: The maintenance cost is relatively low, but it will gradually increase as the usage time increases.

[0048] Technology maturity: The technology is mature and has a high market penetration rate.

[0049] An electric vehicle, or an electric car, refers to a vehicle that uses electric energy as the main power source. An electric vehicle can be a battery electric vehicle (BEV) or a plug-in hybrid electric vehicle (PHEV). It has the following characteristics:

[0050] Driving method: Electric energy is converted into mechanical energy through an electric motor to drive the vehicle. Due to the energy conversion of the battery, compared with internal combustion locomotives, energy management and heat exchange of the battery are required. In the existing heat exchanger layout forms, limited by the installation position of the plate heat exchanger, the detection accuracy of its corresponding sensors is relatively low, which will naturally lead to a reduction in energy management efficiency.

[0051] Energy source: Electric power, which can be charged through a charging station or a household power supply.

[0052] Environmental impact: Zero tail gas emissions, friendly to the environment. However, if the source of electric power is fossil fuel, indirect carbon emissions still exist.

[0053] Endurance mileage: The endurance mileage is usually shorter than that of gasoline vehicles, but with the progress of technology, this gap is narrowing.

[0054] Charging time: The charging time is relatively long, but fast charging technology is developing.

[0055] Maintenance cost: Since the electric motor and battery system have fewer mechanical components, the maintenance cost is usually low.

[0056] This application also provides a preferred embodiment of a plate heat exchanger to solve the problem that the distance between the sensor and the intermediate heat exchanger is relatively far due to the surrounding environment restrictions in the air conditioning pipeline, effectively improving the control accuracy of battery cooling, and at the same time contributing to the low cost, light weight, integration, and miniaturization of the overnight system.

[0057] Specifically, the plate heat exchanger is integrally and integratedly arranged by a heat exchanger body 1, a refrigerant circuit, a charging valve, a temperature and pressure sensor 2, a pressure sensor 4, and an electronic expansion valve 5.

[0058] The heat exchanger body 1 includes a cooling medium inlet pipeline 6, a cooling medium outlet pipeline 7, a refrigerant inlet pipeline 8, and a refrigerant outlet pipeline 9. The cooling medium inlet pipeline 6 and the cooling medium outlet pipeline 7 circulate the cooling medium; the refrigerant inlet pipeline 8 and the refrigerant outlet pipeline 9 circulate the refrigerant. Among them, the flow direction of the refrigerant is opposite to that of the cooling medium, and the four interfaces of the cooling medium inlet pipeline 6, the cooling medium outlet pipeline 7, the refrigerant inlet pipeline 8, and the refrigerant outlet pipeline 9 can be set at the top or bottom of the heat exchanger body 1, such as Figures 1 to 3 shown. The inlet and outlet pipe interfaces of the plate heat exchanger consist of a section of pipeline and a quick connector or a bolt pressing plate type connector. The temperature and pressure sensor 2 and the electronic expansion valve 5 are arranged on the refrigerant outlet pipeline 9; the pressure sensor 4 and the charging valve are arranged on the refrigerant inlet pipeline 8.

[0059] Such as Figure 1 also shows a rubber pad 10.

[0060] The electronic expansion valve 5 is a precision control component used in a refrigeration system. It can adjust the flow rate of the refrigerant according to the real-time needs of the system to optimize the refrigeration efficiency and performance. The working principle of the electronic expansion valve is based on an electromagnetic coil and a valve needle connected thereto. The electromagnetic coil receives signals from the control system and adjusts the position of the valve needle according to this signal, thereby controlling the flow rate of the refrigerant passing through the valve.

[0061] The electronic expansion valve 5 includes:

[0062] 1. Electromagnetic coil: When the electromagnetic coil is energized, it generates a magnetic field that attracts the valve needle to move.

[0063] 2. Valve needle: The movement of the valve needle changes the opening degree of the valve port and adjusts the flow rate of the refrigerant.

[0064] 3. Sensor: The sensors in the system monitor parameters such as temperature and pressure and transmit the data to the control system.

[0065] 4. Control system: The control system calculates the required refrigerant flow rate according to the data of the sensors and the preset algorithm and sends corresponding signals to the electronic expansion valve.

[0066] The electronic expansion valve 5 has the following functional characteristics:

[0067] 1. Precise control: The electronic expansion valve can precisely control the flow rate of the refrigerant, with a fast response speed and high adjustment accuracy.

[0068] 2. Energy saving: By optimizing the flow rate of the refrigerant, energy waste is reduced and the energy efficiency ratio is improved.

[0069] 3. System stability: By real-time adjustment, the system is maintained in the best working state, improving the stability and reliability of the system.

[0070] 4. Adaptability: It can adapt to different working conditions and environments and automatically adjust to meet the system requirements.

[0071] 5. Intelligence: Combined with modern control systems to achieve intelligent management.

[0072] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:

[0073] 1) Components such as the charging valve, temperature and pressure sensor 2, and electronic expansion valve 5 required by the battery cooling system are all integrated on the plate heat exchanger, which can effectively shorten or reduce the connecting pipelines between components, reducing costs and weight.

[0074] 2) The temperature and pressure sensor 2 is arranged on the refrigerant outlet pipeline 9, close to the heat exchanger body 1 to facilitate obtaining temperature and pressure parameters closer to the heat exchanger outlet, enabling more precise control of the refrigeration capacity and effectively improving the refrigeration effect.

[0075] 3) The main function of the plate heat exchanger is to realize heat exchange between the refrigerant and the cooling medium, and cool the battery through the cooling medium, which is more suitable for the indirect cooling thermal management system of the battery.

[0076] 4) The plate heat exchanger can shorten the pipelines included in each interface or change the position of the interface on the heat exchanger according to the layout requirements, making the heat exchanger structure compact and the layout position flexible to match various vehicle models.

[0077] In a plate heat exchanger, the cooling medium is a medium used to reduce the temperature of another fluid. According to application requirements and system design, the cooling medium can be the following types:

[0078] 1. Water: Water is one of the most commonly used cooling media due to its high specific heat capacity and good heat conduction performance. In industrial applications, water can be tap water, well water, or treated recycled water.

[0079] 2. Air: In certain specific applications, air can be used as a cooling medium, especially in cases where a dry environment is required or water cannot be used.

[0080] 3. Refrigerant: In a refrigeration system, a refrigerant (such as R134a, R22, etc.) is used as a cooling medium, absorbing heat through evaporation to lower the temperature of the system.

[0081] 4. Brine or ethylene glycol solution: In certain low-temperature applications, brine or ethylene glycol aqueous solution can be used as a cooling medium because they can remain liquid at low temperatures and have a low freezing point.

[0082] 5. Other Liquids: Depending on specific industrial requirements, other types of liquids can also be used as cooling media, such as oils, alcohols, or other chemical liquids.

[0083] The design of the plate heat exchanger allows the cooling medium to flow between the plates, reducing the temperature of another medium through heat exchange. The plates are usually designed with specific corrugated shapes to increase the turbulence of the fluid, thereby improving the heat transfer efficiency. In addition, the material of the plates also affects the performance and applicability of the heat exchanger. Common materials include stainless steel, titanium, copper, etc.

[0084] The selection of the cooling medium depends on various factors, including the required cooling temperature, system pressure, chemical compatibility, environmental factors, and cost, etc.

[0085] For ease of description, spatial relative terms can be used here, such as "above", "over", "on the upper surface", "upper", etc., to describe the spatial positional relationship of a device or feature shown in the figure with other devices or features. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation described in the figure of the device. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations are made for the spatial relative descriptions used here.

[0086] In addition to the above, it should also be noted that the "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures, or characteristics described in connection with that embodiment being included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure, or characteristic in connection with any one embodiment, it is intended that the implementation of such feature, structure, or characteristic in combination with other embodiments also falls within the scope of the present invention.

[0087] In the above embodiments, the descriptions of the various embodiments have their own emphases. For parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0088] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A plate heat exchanger, characterized in that, Comprising: A heat exchanger body (1), a refrigerant circuit is provided inside the heat exchanger body (1), and a refrigerant inlet pipe (8) and a refrigerant outlet pipe (9) which are both communicated with the refrigerant circuit are provided on the heat exchanger body (1); A temperature and pressure sensor (2), the temperature and pressure sensor (2) is arranged on the refrigerant outlet pipe (9), and the temperature and pressure sensor (2) is used for detecting the temperature of the refrigerant in the refrigerant outlet pipe (9); A pressure sensor (4), the pressure sensor (4) is arranged on the refrigerant inlet pipe (8), and the pressure sensor (4) is used for detecting the pressure of the refrigerant in the refrigerant inlet pipe (8); Wherein, an electronic expansion valve (5) is further provided on the heat exchanger body (1), the electronic expansion valve (5) is communicated with the refrigerant circuit, and the electronic expansion valve (5) is used for controlling the refrigerant flow rate of the refrigerant circuit according to the detection signal of the temperature and pressure sensor (2).

2. The plate heat exchanger according to claim 1, wherein The electronic expansion valve (5) is integrally arranged on the refrigerant inlet pipe (8).

3. The plate heat exchanger according to claim 2, characterized in that, A charging valve pipe (3) is integrally arranged on the refrigerant outlet pipe (9), and the charging valve pipe (3) is communicated with the refrigerant circuit.

4. The plate heat exchanger according to claim 1, characterized in that, A cooling medium circuit is further provided inside the heat exchanger body (1), the cooling medium circuit is independently arranged from the refrigerant circuit, and a cooling medium inlet pipe (6) and a cooling medium outlet pipe (7) which are both communicated with the cooling medium circuit are provided on the heat exchanger body (1).

5. The plate heat exchanger according to claim 4, characterized in that, Both the cooling medium inlet pipe (6) and the cooling medium outlet pipe (7) are arranged on the first side of the heat exchanger body (1) along a first direction, both the refrigerant inlet pipe (8) and the refrigerant outlet pipe (9) are arranged on the second side of the heat exchanger body (1) opposite to the first side along the first direction, and the first direction is the length direction or the width direction of the heat exchanger body (1).

6. The plate heat exchanger according to claim 4, wherein At least one of the cooling medium inlet pipe (6), the cooling medium outlet pipe (7), the refrigerant inlet pipe (8) and the refrigerant outlet pipe (9) is integrally formed with the heat exchanger body (1).

7. The plate heat exchanger according to claim 4, wherein Both the cooling medium inlet pipe (6) and the cooling medium outlet pipe (7) are connected to the first side of the heat exchanger body (1) along a second direction, both the refrigerant inlet pipe (8) and the refrigerant outlet pipe (9) are arranged on the second side of the heat exchanger body (1) opposite to the first side along the second direction, and the second direction is the thickness direction of the heat exchanger body (1).

8. The plate heat exchanger according to claim 4, characterized in that, At least one of the cooling medium inlet pipe (6), the cooling medium outlet pipe (7), the refrigerant inlet pipe (8) and the refrigerant outlet pipe (9) is communicated with an external liquid supply circuit through a quick connector or a bolt pressing plate type connector.

9. The plate heat exchanger according to claim 3, characterized in that, The extending direction of the axis of the refrigerant outlet pipe (9), the extending direction of the geometric center line of the temperature and pressure sensor (2) and the extending direction of the axis of the charging valve pipe (3) are arranged perpendicular to each other in pairs.

10. A vehicle, comprising a plate heat exchanger, characterized in that, The plate heat exchanger is the plate heat exchanger described in any one of claims 1 to 9.

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