Anti-condensation system, motor controller and electric vehicle

Abstract

This application relates to an anti-condensation system, a motor controller, and an electric vehicle. The method includes: the anti-condensation system comprising: a switching valve, a vortex tube, a first valve body, a second valve body, a sensing device, and a controller. The sensing device is disposed within a target cavity to acquire cavity environment information; the controller is electrically connected to the switching valve, the first valve body, the second valve body, and the sensing device; the controller is configured to: in response to the cavity environment information, control the switching valve, the first valve body, and the second valve body to selectively guide the airflow from the hot gas outlet into the target cavity. This method can improve efficiency and control accuracy.

Description

Technical Field

[0001] This application relates to the field of anti-condensation technology, and in particular to an anti-condensation system, a motor controller, and an electric vehicle. Background Technology

[0002] In related technologies, the core components of many devices are typically sealed within a protective cavity (such as a cabinet, controller housing, junction box, etc.). When the equipment is operating, the components generate heat, causing the temperature inside the cavity to rise and the humidity to drop. When the equipment stops operating, due to changes in ambient temperature or heat dissipation from the cavity itself, its inner wall may cool rapidly, forming a "cold wall surface." At this time, water vapor inside the cavity encounters the low-temperature inner wall, its temperature dropping below the dew point, thus condensing into water droplets on the cold wall surface. This can cause PCB corrosion, short circuits, reduced electrical clearances between high-voltage components leading to arcing failures, and ultimately result in decreased equipment performance, deteriorated reliability, or even complete failure.

[0003] Taking a motor controller as an example, it integrates a high-power IGBT module, drive circuit, and sensitive control unit. During work breaks or after shutdown, the water channels and side walls of the controller housing often become significant cold surfaces, and the internal condensation poses a particularly prominent threat to the PCB and high-voltage terminals.

[0004] However, current anti-condensation methods are inefficient and have low control precision, which is a problem that the industry urgently needs to solve. Summary of the Invention

[0005] Therefore, it is necessary to provide an anti-condensation system, motor controller, and electric vehicle that can improve efficiency and control accuracy in response to the above-mentioned technical problems.

[0006] In a first aspect, an anti-condensation system is provided, characterized in that the anti-condensation system comprises: The switching valve has its first port connected to the gas source. The vortex tube includes a gas inlet, a hot gas outlet, and a cold gas outlet; the gas inlet is connected to the second port of the switching valve. The first valve body includes a first input port, a first output port, and a second output port; the first input port is connected to a hot gas outlet, the first output port is connected to the external environment, and the second output port is connected to a first interface of the target cavity. The second valve body includes a second input port, a third output port, and a fourth output port; the second input port is connected to the cold air outlet, the third output port is connected to the external environment, and the fourth output port is connected to the second interface of the target cavity; The sensing device is installed inside the target cavity to acquire information about the cavity environment. The controller is electrically connected to the switching valve, the first valve body, the second valve body, and the sensing device, respectively. The controller is configured to control the switching valve, the first valve body, and the second valve body in response to cavity environment information, and selectively guide the airflow from the hot gas outlet to the target cavity.

[0007] In one embodiment, the controller is configured to: When the cavity environment information indicates a risk of condensation, the control switch valve is turned on, the first valve body is controlled to connect the first input port and the second output port and disconnect the first input port and the first output port, and the second valve body is controlled to connect the second input port and the third output port and disconnect the second input port and the fourth output port.

[0008] When it is determined that there is no risk of condensation based on the cavity environment information, the control switch valve is turned off, the first valve body is controlled to shut off the connection between the first input port and the second output port, and the second valve body is controlled to shut off the connection between the second input port and the third output port.

[0009] In one embodiment, the sensing device includes: a dew point meter; The cavity environment information includes: the current temperature and dew point temperature of the target cavity.

[0010] In one embodiment, the sensing device includes: a temperature and humidity sensor; The cavity environment information includes: the current temperature and current humidity of the target cavity.

[0011] In one embodiment, the anti-condensation system further includes: A power detection device, electrically connected to the controller, is used to acquire the instantaneous power of the internal components of the target cavity; The controller is also configured to, in response to instantaneous power, control the switching valve, the first valve body, and the second valve body to selectively direct the airflow from the cold air outlet to the target cavity.

[0012] In one embodiment, the controller is configured to: When the instantaneous power exceeds the power threshold, the control switch valve is turned on, the first valve body is controlled to turn off the connection between the first input port and the second output port and turn on the connection between the first input port and the first output port, and the second valve body is controlled to turn off the connection between the second input port and the third output port and turn on the connection between the second input port and the fourth output port.

[0013] When the instantaneous power is less than or equal to the power threshold, the control switch valve is turned off, the first valve body is controlled to shut off the connection between the first input port and the first output port, and the second valve body is controlled to shut off the connection between the second input port and the fourth output port.

[0014] In one embodiment, the gas source includes: The gas storage device has its outlet connected to the first port of the switch valve and is used to store compressed gas.

[0015] In one embodiment, the gas source further includes: Air drying equipment is used to dry air. Air compression equipment is used to compress gases. The air drying equipment, air compression equipment, and air storage equipment are connected in series.

[0016] In a second aspect, a motor controller is provided, characterized in that it includes the anti-condensation system of any one of the embodiments in the first aspect.

[0017] Thirdly, an electric vehicle is provided, characterized in that it includes the motor controller of the second aspect embodiment.

[0018] Based on this, the aforementioned anti-condensation system includes a switching valve, a vortex tube, a first valve body, a second valve body, a sensing device, and a controller. The system comprises: a first port of a switching valve connected to a gas source; a vortex tube including a gas inlet, a hot gas outlet, and a cold gas outlet; the gas inlet connected to a second port of the switching valve; a first valve body including a first input port, a first output port, and a second output port; the first input port connected to the hot gas outlet, the first output port connected to the external environment, and the second output port connected to the first interface of the target cavity; a second valve body including a second input port, a third output port, and a fourth output port; the second input port connected to the cold gas outlet, the third output port connected to the external environment, and the fourth output port connected to the second interface of the target cavity; a sensing device disposed within the target cavity to acquire cavity environment information; a controller electrically connected to the switching valve, the first valve body, the second valve body, and the sensing device; and a controller configured to: respond to cavity environment information, control the switching valve, the first valve body, and the second valve body to selectively guide the airflow from the hot gas outlet to the target cavity, thereby increasing the temperature of the target cavity through hot airflow to prevent condensation, thus improving the anti-condensation efficiency and control accuracy of the target cavity. Attached Figure Description

[0019] Figure 1 This is a first structural block diagram of an anti-condensation system in one embodiment; Figure 2 This is a second structural block diagram of the anti-condensation system in one embodiment; Figure 3 This is a third structural block diagram of an anti-condensation system in one embodiment. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0021] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0023] It is understood that the terms "first," "second," etc., used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of this application, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0024] It is understood that the term "mechanical connection" in the following embodiments should be understood as "electrical connection," "communication mechanical connection," etc., if the mechanically connected circuits, modules, units, etc., have electrical signal or data transmission with each other.

[0025] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0026] Firstly, such as Figure 1 As shown, an anti-condensation system is provided, which includes a switching valve 100, a vortex tube 200, a first valve body 300, a second valve body 400, a sensing device 500, and a controller 600.

[0027] In a specific example, the above-described anti-condensation system can be applied to, but is not limited to, the equipment to be protected from condensation. The equipment to be protected from condensation can be, but is not limited to, industrial control cabinets, communication cabinets, or motor controllers. The above is merely a specific example; in actual applications, the system can be flexibly configured according to user needs, and no restrictions are imposed here.

[0028] The first port of the switching valve 100 is connected to the gas source.

[0029] The vortex tube 200 is a device that uses compressed air to generate a separation of hot and cold airflows. The vortex tube 200 includes a gas inlet, a hot gas outlet, and a cold gas outlet; the gas inlet is connected to the second port of the switching valve 100.

[0030] In a specific example, when compressed air enters the vortex tube 200, it is accelerated through the nozzle and enters the vortex chamber tangentially, forming a high-speed rotating vortex. Inside the vortex chamber, the airflow is divided into an outer layer and an inner layer. The outer layer airflow is formed by friction between the airflow near the tube wall and the tube wall, and absorbs energy from the central airflow, resulting in increased kinetic energy and temperature, before being discharged from the hot air outlet.

[0031] The inner airflow is formed by the loss of energy and reduced kinetic energy of the airflow in the central part, resulting in a drop in temperature and the formation of a cold airflow. This cold airflow is reflected by the baffle and flows out from the cold air outlet. The vortex tube 200 has no moving parts inside and is usually made of stainless steel, which is characterized by corrosion resistance, maintenance-free operation, and long service life. The above is only a specific example, and in actual applications, it can be flexibly set according to user needs. There are no restrictions here.

[0032] The first valve body 300 includes a first input port, a first output port, and a second output port; the first input port is connected to a hot gas outlet, the first output port is connected to the external environment, and the second output port is connected to a first interface of the target cavity. It is understood that the target cavity may be, but is not limited to, the cavity of the device to be prevented from condensing.

[0033] The second valve body 400 includes a second input port, a third output port, and a fourth output port; the second input port is connected to the cold air outlet, the third output port is connected to the external environment, and the fourth output port is connected to the second interface of the target cavity.

[0034] In a specific example, the first valve body 300 and the second valve body 400 may be, but are not limited to, three-way valves. The above is only a specific example. In actual applications, they can be flexibly set according to user needs, and no restrictions are imposed here.

[0035] The sensing device 500 is installed inside the target cavity to acquire information about the cavity environment.

[0036] In one embodiment, the sensing device 500 includes: a dew point meter; The cavity environment information includes: the current temperature and dew point temperature of the target cavity.

[0037] Specifically, the dew point meter collects the current temperature and dew point temperature of the target cavity. In response to the cavity environment information, the controller 600 controls the switching valve 100, the first valve body 300, and the second valve body 400 to selectively guide the airflow from the hot gas outlet to the target cavity, thereby improving the accuracy and real-time performance of the dew point data acquisition.

[0038] In one embodiment, the sensing device 500 includes: a temperature and humidity sensor; The cavity environment information includes: the current temperature and current humidity of the target cavity.

[0039] Specifically, the temperature and humidity sensor collects the current temperature and humidity of the target cavity, and the controller 600 responds to the cavity environment information by controlling the switching valve 100, the first valve body 300 and the second valve body 400 to selectively guide the airflow from the hot gas outlet to the target cavity, thereby improving the accuracy and real-time performance of dew point data acquisition.

[0040] The controller 600 is electrically connected to the switching valve 100, the first valve body 300, the second valve body 400, and the sensing device 500, respectively. The controller 600 is configured to control the switching valve 100, the first valve body 300, and the second valve body 400 in response to cavity environment information, selectively guiding the airflow from the hot gas outlet to the target cavity, thereby raising the temperature of the target cavity through the hot airflow to avoid condensation, thus improving the anti-condensation efficiency and control accuracy of the target cavity.

[0041] In one specific example, the controller 600 can be a standalone controller device or integrated with the device to be prevented from condensing, thereby reducing the cost of the anti-condensation system. The above are merely specific examples; in actual applications, the configuration can be flexibly adjusted according to user needs, and no restrictions are imposed here.

[0042] Based on this, the aforementioned anti-condensation system includes a switching valve 100, a vortex tube 200, a first valve body 300, a second valve body 400, a sensing device 500, and a controller 600. The first port of the switching valve 100 is connected to a gas source; the vortex tube 200 includes a gas inlet, a hot gas outlet, and a cold gas outlet; the gas inlet is connected to the second port of the switching valve 100; the first valve body 300 includes a first input port, a first output port, and a second output port; the first input port is connected to the hot gas outlet, the first output port is connected to the external environment, and the second output port is connected to the first interface of the target cavity; the second valve body 400 includes a second input port, a third output port, and a fourth output port; the second input port is connected to the cold gas outlet, the third output port is connected to the external environment, and the fourth output port is connected to the first interface of the target cavity. The second interface of the port is connected to the target cavity. The sensing device 500 is installed inside the target cavity to obtain the cavity environment information of the target cavity. The controller 600 is electrically connected to the switching valve 100, the first valve body 300, the second valve body 400, and the sensing device 500 respectively. The controller 600 is configured to: respond to the cavity environment information, control the switching valve 100, the first valve body 300, and the second valve body 400 to selectively guide the airflow from the hot gas outlet to the target cavity, thereby raising the temperature of the target cavity through the hot airflow to avoid condensation, thus improving the anti-condensation efficiency and control accuracy of the target cavity.

[0043] In one embodiment, the controller 600 is configured to: When the cavity environment information indicates a risk of condensation, the control switch valve 100 is turned on, the first valve body 300 is turned on to connect the first input port and the second output port and turn off the first input port and the first output port, and the second valve body 400 is turned on to connect the second input port and the third output port and turn off the second input port and the fourth output port. When it is determined that there is no risk of condensation based on the cavity environment information, the control switch valve 100 is turned off, the first valve body 300 is controlled to shut off the connection between the first input port and the second output port, and the second valve body 400 is controlled to shut off the connection between the second input port and the third output port.

[0044] Specifically, when the controller 600 determines that there is a risk of condensation in the target cavity based on the cavity environment information, it controls the switching valve 100 to open, thereby allowing compressed gas to enter the vortex tube 200. It also controls the first valve body 300 to connect the first input port and the second output port while disconnecting them, thus allowing the hot gas flowing out of the vortex tube 200 to flow from the hot gas outlet through the first input port and the second output port into the target cavity. This achieves the goal of raising the temperature of the target cavity through the hot gas flow to prevent condensation. Furthermore, it controls the second valve body 400 to connect the second input port and the third output port... The outlet ports are connected while the second input port and the fourth output port are disconnected, allowing the cold airflow from the vortex tube 200 to flow into the external environment through the cold air outlet, the second input port, and the fourth output port. This achieves direct discharge of the cold airflow into the external environment, improving anti-condensation efficiency and control accuracy. Simultaneously, when it is determined that there is no risk of condensation based on the cavity environment information, the control switch valve 100 is closed, the first valve body 300 is controlled to disconnect the first input port and the second output port, and the second valve body 400 is controlled to disconnect the second input port and the third output port, thereby saving resources.

[0045] In a specific example, the cavity environment information includes: the current temperature and dew point temperature of the target cavity. Determining the presence of condensation risk based on the cavity environment information includes: The temperature difference is determined based on the difference between the current temperature and the dew point temperature; If the temperature difference falls within the temperature difference threshold range, it is determined that there is a risk of condensation inside the target cavity; If the temperature difference does not fall within the temperature difference threshold range, it is determined that there is no risk of condensation within the target cavity. The above is merely a specific example; in actual applications, settings can be flexibly adjusted according to user needs, and no restrictions are imposed here.

[0046] In a specific example, the cavity environment information includes: the current temperature and current humidity of the target cavity. Determining the presence of condensation risk based on the cavity environment information includes: Calculate the dew point temperature of the target cavity based on the current temperature and humidity, and determine the temperature difference based on the difference between the current temperature and the dew point temperature; If the temperature difference falls within the temperature difference threshold range, it is determined that there is a risk of condensation inside the target cavity; If the temperature difference does not fall within the temperature difference threshold range, it is determined that there is no risk of condensation within the target cavity. The above is merely a specific example; in actual applications, settings can be flexibly adjusted according to user needs, and no restrictions are imposed here.

[0047] The above are just specific examples. In actual applications, the settings should be flexibly adjusted according to user needs, and no restrictions are imposed here.

[0048] In this embodiment, when the cavity environment information indicates a risk of condensation in the target cavity, the control switch valve 100 is turned on, and the first valve body 300 is turned on to connect the first input port and the second output port while disconnecting the first input port and the first output port. This allows the hot airflow from the vortex tube 200 to flow into the target cavity through the hot air outlet, the first input port, and the second output port, thereby raising the temperature of the target cavity to prevent condensation. Simultaneously, the control switch valve 400 is turned on to connect the second input port and the third output port while disconnecting the second input port and the fourth output port, allowing the cold airflow to be directly discharged into the external environment, improving anti-condensation efficiency and control accuracy. Conversely, when the cavity environment information indicates no risk of condensation, the control switch valve 100 is turned off, the first valve body 300 is turned off to disconnect the first input port and the second output port, and the second valve body 400 is turned off to disconnect the second input port and the third output port, thus saving resources.

[0049] In one embodiment, such as Figure 2 As shown, the anti-condensation system also includes a power detection device 700.

[0050] The power detection device 700 is electrically connected to the controller 600, and the power detection device 700 is used to obtain the instantaneous power of the internal components of the target cavity.

[0051] The controller 600 is also configured to control the switching valve 100, the first valve body, and the second valve body 400 in response to instantaneous power, selectively directing the airflow from the cold air outlet to the target cavity.

[0052] Specifically, the power detection device 700 acquires the instantaneous power of the internal components of the target cavity. In response to the instantaneous power, the controller 600 controls the switching valve 100, the first valve body 300, and the second valve body 400 to selectively guide the airflow from the cold air outlet to the target cavity. This achieves the goal of reducing the temperature of the target cavity through the cold airflow, extending the operating time of the internal components of the target cavity at peak operating conditions, and improving the operating efficiency of the internal components of the target cavity.

[0053] In this embodiment, the instantaneous power of the internal components of the target cavity is acquired. In response to the instantaneous power, the controller 600 controls the switching valve 100, the first valve body 300, and the second valve body 400 to selectively guide the airflow from the cold air outlet to the target cavity. This achieves the goal of reducing the temperature of the target cavity through the cold airflow, extending the operating time of the internal components of the target cavity at peak operating conditions, and improving the operating efficiency of the internal components of the target cavity.

[0054] In one embodiment, the controller 600 is configured to: When the instantaneous power exceeds the power threshold, the control switch valve 100 is turned on, the first valve body 300 is turned off between the first input port and the second output port and turned on between the first input port and the first output port, and the second valve body 400 is turned off between the second input port and the third output port and turned on between the second input port and the fourth output port.

[0055] When the instantaneous power is less than or equal to the power threshold, the control switch valve 100 is turned off, the first valve body 300 is controlled to shut off the connection between the first input port and the first output port, and the second valve body 400 is controlled to shut off the connection between the second input port and the fourth output port.

[0056] Specifically, when the instantaneous power exceeds the power threshold, the controller 600 controls the switching valve 100 to open, allowing compressed gas to enter the vortex tube 200. The controller also controls the first valve body 300 to close the connection between the first input port and the second output port while opening the connection between the first input port and the first output port. Furthermore, the controller controls the second valve body 400 to close the connection between the second input port and the third output port while opening the connection between the second input port and the fourth output port. This effectively lowers the temperature of the target cavity through the cold airflow, extending the operating time of the internal components of the target cavity at peak conditions and improving the operating efficiency of the internal components. Then, when the instantaneous power is less than or equal to the power threshold, the controller controls the switching valve 100 to close, stopping the compressed gas from entering the vortex tube 200. The controller also controls the first valve body 300 to close the connection between the first input port and the first output port, and the controller controls the second valve body 400 to close the connection between the second input port and the fourth output port. This improves the control accuracy of the anti-condensation system and reduces its operating cost.

[0057] In this embodiment, when the instantaneous power exceeds the power threshold, the control switch valve 100 is turned on, the first valve body 300 is turned off between the first input port and the second output port, and the first input port and the first output port are turned on. The second valve body 400 is turned off between the second input port and the third output port, and the second input port and the fourth output port are turned on. This achieves the goal of reducing the temperature of the target cavity through cold airflow, extending the operating time of the internal components of the target cavity at peak conditions, and improving the operating efficiency of the internal components of the target cavity. Then, when the instantaneous power is less than or equal to the power threshold, the control switch valve 100 is turned off, thereby stopping the compressed gas from entering the vortex tube 200. The first valve body 300 is turned off between the first input port and the first output port, and the second valve body 400 is turned off between the second input port and the fourth output port. This improves the control accuracy of the anti-condensation system and reduces its operating cost.

[0058] In one embodiment, such as Figure 3As shown, the gas source includes a gas storage device 800.

[0059] The outlet of the gas storage device 800 is connected to the first port of the switch valve 100, and is used to store compressed gas.

[0060] In one specific example, the gas storage device 800 can be, but is not limited to, a high-pressure gas cylinder. The above is only a specific example; in actual applications, it can be flexibly configured according to user needs, and no restrictions are imposed here.

[0061] In this embodiment, the anti-condensation system also includes a gas storage device 800. The outlet of the gas storage device 800 is connected to the first port of the switching valve 100, and is used to store compressed gas, so as to directly supply compressed gas to the vortex tube 200 for anti-condensation work, thereby improving the convenience and efficiency of the anti-condensation system.

[0062] In one embodiment, such as Figure 3 As shown, the air source also includes an air drying device 900 and an air compression device 1000.

[0063] The air drying device 900 is used to dry the air; the air compression device 1000 is used to compress the gas; the air drying device 900, the air compression device 1000 and the gas storage device 800 are connected in series.

[0064] The air dryer 900 is a device for drying air. After drying the air, the air dryer 900 outputs the dried gas to the air compressor 1000, facilitating the direct supply of dried air to the air compressor 1000 for subsequent anti-condensation work, thus improving the convenience and efficiency of the anti-condensation system. In a specific example, the air dryer 900 can be, but is not limited to, an air dryer. The above is only a specific example; in actual applications, it can be flexibly configured according to user needs, and no restrictions are imposed here.

[0065] The air compressor 1000 is a device that compresses input gas to obtain compressed gas. The air compressor 1000 is used to compress input gas to obtain compressed gas, and then outputs the compressed gas to the gas storage device 800. In a specific example, the air compressor 1000 may be, but is not limited to, an air compressor. The above is only a specific example; in actual applications, it can be flexibly configured according to user needs, and no restrictions are imposed here.

[0066] In this embodiment, the air source also includes an air dryer 900 and an air compressor 1000. The air dryer 900 is used to dry the air; the air compressor 1000 is used to compress the gas; the air dryer 900, the air compressor 1000, and the gas storage device 800 are connected in series, improving the convenience and efficiency of the anti-condensation system.

[0067] In a second aspect, a motor controller is provided, characterized in that it includes the anti-condensation system of any one of the embodiments in the first aspect.

[0068] Compared with the prior art, the advantages of the motor controller of the present invention are the same as those of the motor controller anti-condensation device, which will not be repeated here.

[0069] Thirdly, an electric vehicle is provided, characterized in that it includes the motor controller of the second aspect embodiment.

[0070] Compared to existing technologies, the electric vehicle of the present invention has the same advantages as the motor controller anti-condensation device, which will not be repeated here.

[0071] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and 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, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0072] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "mechanical connection" should be interpreted broadly. For example, they can refer to a fixed mechanical connection, a detachable mechanical connection, or an integral mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0073] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0074] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An anti-condensation system, characterized in that, include: A switching valve, wherein the first port of the switching valve is connected to a gas source; A vortex tube, comprising a gas inlet, a hot gas outlet, and a cold gas outlet; The gas inlet is connected to the second port of the switching valve; A first valve body, the first valve body including a first input port, a first output port and a second output port; the first input port is connected to the hot gas outlet, the first output port is connected to the external environment, and the second output port is connected to the first interface of the target cavity; The second valve body includes a second input port, a third output port, and a fourth output port; the second input port is connected to the cold air outlet, the third output port is connected to the external environment, and the fourth output port is connected to the second interface of the target cavity; A sensing device is disposed within the target cavity to acquire cavity environment information of the target cavity; A controller is electrically connected to the switching valve, the first valve body, the second valve body, and the sensing device, respectively. The controller is configured to control the switching valve, the first valve body, and the second valve body in response to the cavity environment information, and selectively guide the airflow from the hot gas outlet to the target cavity.

2. The anti-condensation system according to claim 1, characterized in that, The controller is configured to: When it is determined that there is a risk of condensation based on the cavity environment information, the switch valve is turned on, the first valve body is turned on to connect the first input port and the second output port and turn off the first input port and the first output port, and the second valve body is turned off to connect the second input port and the third output port and turn off the second input port and the fourth output port. When it is determined that there is no risk of condensation based on the cavity environment information, the switch valve is controlled to close, the first valve body is controlled to close the connection between the first input port and the second output port, and the second valve body is controlled to close the connection between the second input port and the third output port.

3. The anti-condensation system according to claim 2, characterized in that, The sensing device includes: a dew point meter; The cavity environment information includes: the current temperature and dew point temperature of the target cavity.

4. The anti-condensation system according to claim 2, characterized in that, The sensing device includes: a temperature and humidity sensor; The cavity environment information includes: the current temperature and current humidity of the target cavity.

5. The anti-condensation system according to claim 1, characterized in that, The anti-condensation system also includes: A power detection device, electrically connected to the controller, is used to acquire the instantaneous power of the internal components of the target cavity; The controller is also configured to: in response to the instantaneous power, control the switching valve, the first valve body and the second valve body to selectively direct the airflow from the cold air outlet to the target cavity.

6. The anti-condensation system according to claim 5, characterized in that, The controller is configured to: When the instantaneous power is greater than the power threshold, the switching valve is controlled to open, the first valve body is controlled to close the first input port and the second output port and open the first input port and the first output port, and the second valve body is controlled to close the second input port and the third output port and open the second input port and the fourth output port. When the instantaneous power is less than or equal to the power threshold, the switching valve is controlled to close, the first valve body is controlled to close the connection between the first input port and the first output port, and the second valve body is controlled to close the connection between the second input port and the fourth output port.

7. The anti-condensation system according to claim 1, characterized in that, The gas source includes: A gas storage device, wherein the gas outlet of the gas storage device is connected to the first port of the switch valve, and is used to store compressed gas.

8. The anti-condensation system according to claim 7, characterized in that, The gas source also includes: Air drying equipment is used to dry air. Air compression equipment is used to compress gases. The air drying equipment, the air compression equipment, and the air storage equipment are connected in series.

9. A motor controller, characterized in that, Includes the anti-condensation system according to any one of claims 1 to 8.

10. An electric vehicle, characterized in that, Includes the motor controller according to claim 9.

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