Electric drive controller and vehicle

Abstract

The utility model discloses an electric drive controller and a vehicle. The electric drive controller comprises a shell, a top cover, an electric drive assembly, a valve body assembly and a heating assembly, and the shell is provided with a containing groove; the top cover is arranged on the shell in a covering mode, and a containing cavity is formed between the top cover and the groove wall of the containing groove. The electric driving assembly is fixedly arranged in the accommodating cavity; the valve body assembly comprises an air inlet valve body and an air outlet valve body, the air inlet valve body is embedded in the side wall of the shell, the air outlet valve body is embedded in the top cover, and the air inlet valve body and the air outlet valve body are both communicated with the containing cavity; the heating assembly is connected to the side, facing the shell, of the top cover, and the heating assembly is arranged around the air outlet valve body. The air inlet valve body is embedded in the side wall of the shell, the air outlet valve body is embedded in the top cover, and the air inlet valve body and the air outlet valve body are both communicated with the containing cavity, so that air can smoothly flow in and out according to a preset path. And meanwhile, the heating assembly is arranged on the top cover and surrounds the gas outlet valve body, gas to be exhausted can be heated, and the risk of condensation of the gas in the shell is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of controller, especially to an electric drive controller and vehicle. BACKGROUND

[0002] With the rapid development of new energy market, the sales of new energy vehicles are rising, but the actual running environment of vehicles in different regions is complex and changeable, and the continuously changing temperature conditions in the motor controller are easy to cause condensation, which brings great challenges to the stable and reliable work of vehicles. The condensation in the motor controller will lead to the decline of electrical insulation performance, cause component insulation "flashover" and directly corrode parts, and even make the parts lose insulation properties. At present, although the motor controller has technical means such as adding waterproof breather valve, there is still a high probability of condensation, which causes short circuit and other faults. SUMMARY

[0003] The technical problem solved by the present application is to provide an electric drive controller and vehicle, which can solve the problem of easy condensation in the electric drive controller.

[0004] To solve the above technical problems, one technical scheme adopted by the present application is to provide an electric drive controller, which comprises a shell, a top cover, an electric drive assembly, a valve body assembly and a heating assembly, the shell is provided with a containing groove; the top cover is arranged on the shell, and a containing cavity is formed between the top cover and the groove wall of the containing groove; the electric drive assembly is fixedly arranged in the containing cavity; the valve body assembly comprises an air inlet valve body and an air outlet valve body, the air inlet valve body is embedded in the side wall of the shell, the air outlet valve body is embedded in the top cover, and the air inlet valve body and the air outlet valve body are both in communication with the containing cavity; the heating assembly is connected to one side of the top cover facing the shell, and the heating assembly surrounds the air outlet valve body.

[0005] To solve the above technical problems, the present application also provides another technical scheme: a vehicle comprising the above-mentioned electric drive controller.

[0006] Advantages: by embedding the air inlet valve body in the side wall of the shell and the air outlet valve body in the top cover, and making both in communication with the containing cavity, the gas can flow in and out smoothly according to the predetermined path. At the same time, the heating assembly is arranged on the top cover and surrounds the air outlet valve body, which can heat the gas about to be discharged, reducing the risk of condensation of the gas in the shell. BRIEF DESCRIPTION OF DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art without creative work based on the drawings are within the protection scope of the present application. Among them:

[0008] Figure 1 The structural schematic diagram of the electric drive controller provided by an embodiment of the present application is shown in the figure;

[0009] Figure 2 The structural block diagram of the top cover provided by an embodiment of the present application is shown in the figure;

[0010] Figure 3 The structural schematic diagram of the three-phase copper bar module provided by an embodiment of the present application is shown in the figure;

[0011] Figure 4 The internal structural schematic diagram of the air inlet valve body and the air outlet valve body provided by an embodiment of the present application is shown in the figure;

[0012] Figure 5 The structural block diagram of the vehicle provided by an embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the protection scope of the present application.

[0014] The terms "first", "second", "third", etc. in the present application are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", "third" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly. In addition, the terms "include" and "have" 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 is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.

[0015] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0016] Please refer to Figure 1 The present application provides an electric drive controller 100, which comprises a shell 10, a top cover 20, an electric drive assembly 30, a valve body assembly 40 and a heating assembly 50. The shell 10 is provided with a receiving groove 11, the top cover 20 is arranged on the shell 10, and a receiving cavity (not shown in the figure) is formed between the top cover 20 and the groove wall of the receiving groove 11. The electric drive assembly 30, the valve body assembly 40 and the heating assembly 50 are arranged in the receiving cavity. The shell 10 serves as the basic support structure of the entire controller, provides mounting space for the internal components, and protects the internal components.

[0017] Specifically, the electric drive assembly 30 is fixedly arranged in the receiving cavity. The electric drive assembly 30 is the core of the controller, responsible for power conversion and transmission of control signals.

[0018] The valve body assembly 40 comprises an air inlet valve body 41 and an air outlet valve body 42. The air inlet valve body 41 is embedded in the side wall of the shell 10, and the air outlet valve body 42 is embedded in the top cover 20. Both the air inlet valve body 41 and the air outlet valve body 42 are in communication with the receiving cavity.

[0019] The intake valve body 41 is embedded in the side wall of the shell 10, and the exhaust valve body 42 is located on the top cover 20, both of which are connected with the inside of the containing cavity, thereby forming an efficient gas circulation path, which not only helps to dissipate heat, but also adjusts the internal environment as needed to improve the thermal management efficiency of the electric drive controller 100.

[0020] The heating assembly 50 is connected to the side of the top cover 20 facing the shell 10, and the heating assembly 50 is arranged around the exhaust valve body 42. The heating assembly 50 can quickly and uniformly raise the temperature of the gas near the top cover 20, thereby effectively reducing the risk of the gas being converted into condensation in a low-temperature environment.

[0021] When the electric drive controller 100 is continuously working, the heat generated by the electric drive assembly 30 heats the gas in the shell 10. As the gas temperature rises, the saturation humidity increases to accommodate more water vapor, so the water vapor inside the electric drive controller 100 is more likely to rise and gather at the top cover 20 along with the high-temperature gas, and then can be discharged through the exhaust valve body 42. At the same time, the low-temperature gas outside enters the containing cavity through the intake valve body 41. Because the gas temperature is low and the saturation humidity is small, the low-temperature gas contains less water vapor. The entering low-temperature gas can absorb the heat of the electric drive assembly 30. At this time, the heat generated by the electric drive assembly 30 also continuously heats the low-temperature gas. The heated gas also rises and gathers to the top cover 20, and then is discharged through the exhaust valve body 42.

[0022] To reduce the risk of high-temperature and high-humidity gas producing condensation at the exhaust valve body 42 due to contact with the outside low temperature, the heating assembly 50 arranged around the exhaust valve body 42 is started to make the area near the exhaust valve body 42 in a high-temperature state, ensuring that the internal high-temperature and high-humidity gas can be smoothly discharged from the exhaust valve body 42. Because the water vapor content discharged from the electric drive controller 100 is always greater than the amount of water vapor entering the electric drive controller 100, the internal water vapor and liquid water generated by abnormal conditions (such as coolant leakage) can be continuously discharged from the electric drive controller 100 when the electric drive controller 100 is continuously working, so that the humidity inside the electric drive controller 100 is in a lower state, thereby reducing the occurrence of condensation.

[0023] Please refer to Figure 1 and Figure 2 In an embodiment, the electric drive controller 100 further comprises a sealing glue 60 and a locking member (not shown in the figure). The sealing glue 60 is adhered between the shell 10 and the top cover 20, and the locking member is used to fix the shell 10 and the top cover 20. Through the above arrangement, the sealing glue 60 is applied to the joint surface of the shell 10 and the top cover 20, and the locking member is used to fix the shell 10 and the top cover 20, thereby improving the stability between the shell 10 and the top cover 20.

[0024] In an embodiment, the sealing glue 60 is a heat-curing sealing glue 60, the heat-curing sealing glue 60 is applied at the joint surface of the top cover 20, the top cover 20 is covered after the sealing glue 60 is cured at high temperature, and the shell 10 and the top cover 20 are fixedly connected by using the locking member.

[0025] In an embodiment, the locking member is a screw.

[0026] Please refer to Figure 1 and Figure 3 In an embodiment, the air inlet valve body 41 and the air outlet valve body 42 each include a one-way valve 43 and a waterproof breathable membrane 44, and the waterproof breathable membrane 44 is arranged inside the one-way valve 43. By arranging the waterproof breathable membrane 44 inside the one-way valve 43, the waterproof performance of the air inlet valve body 41 and the air outlet valve body 42 is enhanced, and the environmental adaptability of the electric drive controller 100 is further improved.

[0027] In actual application, when the electric drive controller 100 is in normal working state, the one-way valve 43 allows the heat and exhaust gas generated inside to be discharged through the air outlet valve body 42, and allows fresh air to enter through the air inlet valve body 41, so as to maintain ventilation and heat dissipation of the internal environment. The presence of the waterproof breathable membrane 44 ensures that the incoming and outgoing gases are not disturbed by moisture and pollutants, thereby ensuring long-term stable operation of the electric drive controller 100.

[0028] It can be understood that the waterproof breathable membrane 44 utilizes a microporous structure to allow smaller gas molecules to pass through, while larger molecules such as liquid and dust are blocked outside, thereby achieving the effect of waterproof and breathable.

[0029] Further, as shown in Figure 4 , the structure of the one-way valve 43 utilizes the pressure difference between sides A and B. When the pressure on side A is greater than that on side B, the valve is opened, and under the action of the pressure difference, the gas on side A flows to side B. When the pressure on side A is not greater than that on side B, the valve is closed, and the gas on side B is prevented from flowing to side A.

[0030] It can be understood that, without affecting the arrangement position of the internal components of the electric drive controller 100, the number of air inlet valve bodies 41 can be increased, i.e., the air inlet valve bodies 41 can be arranged on multiple circumferential walls of the shell 10, thereby improving the heat dissipation efficiency of the electric drive controller 100.

[0031] Please refer to Figure 1In an embodiment, the electric drive assembly 30 includes a capacitor module 31, a power module 32, and a three-phase copper bar module 33. The capacitor module 31 is fixedly connected to the bottom of the accommodating groove 11. The power module 32 is arranged on the side of the capacitor module 31 facing the top cover 20 and is connected to the output end of the capacitor module 31. The three-phase copper bar module 33 is arranged on the side of the capacitor module 31 and is connected to the output end of the power module 32, for outputting three-phase current.

[0032] Specifically, the capacitor module 31, as an energy storage and filtering unit of the electric drive assembly 30, is fixedly and firmly connected to the bottom of the accommodating groove 11. The capacitor module 31 can store electrical energy and release it quickly when needed, to provide stable direct-current voltage to the power module 32.

[0033] The power module 32 is arranged on the side of the capacitor module 31 facing the top cover 20 and is directly connected to the output end of the capacitor module 31. The power module 32 is the energy conversion core of the electric drive assembly 30, which is responsible for converting direct-current electrical energy into alternating-current electrical energy.

[0034] The three-phase copper bar module 33 is arranged on the side of the capacitor module 31 and is closely connected to the output end of the power module 32. The three-phase copper bar module 33 is the key channel for power output, which is responsible for transmitting the three-phase alternating-current electrical energy generated by the power module 32 to the motor or other load equipment. The three-phase copper bar module 33 is made of copper material, which has excellent electrical conductivity and heat dissipation performance, and can ensure stable transmission of current and efficient heat dissipation.

[0035] In actual application, when the electric drive controller 100 receives a start signal, the capacitor module 31 first releases the stored electrical energy to provide stable direct-current input to the power module 32. The power module 32 then converts the direct-current electrical energy into three-phase alternating-current electrical energy and outputs it to the external motor through the three-phase copper bar module 33. After receiving the three-phase current, the external motor starts to rotate and drives the load equipment to work.

[0036] Please continue to refer to Figure 1 In an embodiment, the electric drive controller 100 further includes a cooling plate 70 connected between the capacitor module 31 and the power module 32. The side of the cooling plate 70 away from the capacitor module 31 is provided with a cooling groove 71, and the power module 32 is fixedly arranged in the cooling groove 71.

[0037] Through the above arrangement, the cooling plate 70, as a heat conduction element, is arranged between the capacitor module 31 and the power module 32 to optimize the heat exchange between the capacitor module 31 and the power module 32. One side of the cooling plate 70 is in close contact with the capacitor module 31, rapidly conducting the heat generated by the capacitor module 31 to its surface, and the other side is provided with the cooling groove 71 to provide a heat dissipation environment for the power module 32.

[0038] In an embodiment, the cooling plate 70 is provided with a cooling cavity (not shown) for conveying a cooling medium (not shown), and the side wall of the housing 10 is provided with an inlet (not shown) and an outlet (not shown) of the cooling cavity, which are arranged at intervals. By arranging the inlet and the outlet at intervals, a predetermined flow path of the cooling medium in the cooling cavity can be ensured, so that the cooling medium can better indirectly contact the capacitor module 31 and the power module 32, thereby improving the efficiency of heat absorption.

[0039] In actual application, when the electric drive controller 100 starts to work, the capacitor module 31 and the power module 32 will generate a certain amount of heat. The heat generated by the capacitor module 31 and the power module 32 is directly transmitted to the cooling plate 70 and exchanges heat with the cooling medium flowing through the cooling cavity. After absorbing the heat, the cooling medium carries away the heat through circulation, thereby maintaining the stability of the internal temperature of the electric drive controller 100, improving the heat dissipation efficiency of the electric drive controller 100, and reducing the risk of performance degradation or failure of the electric drive controller 100 due to overheating.

[0040] Please continue to refer to Figure 1 In an embodiment, the electric drive controller 100 further comprises a first sealing member 80, which is sealingly arranged between the power module 32 and the groove wall of the cooling groove 71. Through the above arrangement, the first sealing member 80 tightly fits the gap between the power module 32 and the groove wall of the cooling groove 71, thereby improving the sealing performance between the power module 32 and the cooling plate 70.

[0041] In an embodiment, the first sealing member 80 is a sealing rubber ring.

[0042] Please continue to refer to Figure 1 In an embodiment, the electric drive assembly 30 further comprises a heat-conducting member 90, which is adhered between the capacitor module 31 and the cooling plate 70. By arranging the heat-conducting member 90, the heat generated by the capacitor module 31 during operation can be rapidly and uniformly transmitted to the cooling plate 70, so as to be carried away by the cooling medium in the cooling cavity, thereby reducing the thermal resistance between the capacitor module 31 and the cooling plate 70 and improving the cooling efficiency of the cooling plate 70.

[0043] In an embodiment, the heat-conducting member 90 is made of heat-conducting glue, and other heat-conducting materials can also be used, which are not limited herein.

[0044] Please continue to refer to Figure 1In an embodiment, the electric drive controller 100 further comprises a temperature sensor (not shown in the figure) arranged on the power module 32 for sensing the temperature of the power module 32. Through the above arrangement, the temperature sensor can monitor the temperature change of the power module 32 in real time during the working process, so that the thermal management system (such as the air inlet valve body 41, the air outlet valve body 42, and the cooling plate 70) of the electric drive controller 100 can make a quick and accurate response according to the real-time temperature data. For example, when the temperature of the power module 32 is too high, the thermal management system can automatically adjust the flow or temperature of the cooling medium to reduce the temperature of the power module 32 and prevent the power module 32 from being damaged due to overheating.

[0045] For further reference Figure 1 In an embodiment, the heating assembly 50 is a ring-shaped heating resistor. It can be understood that, after the temperature sensor senses the heating condition of the power module 32, the input voltage of the ring-shaped heating resistor is adjusted and the output power of the ring-shaped heating resistor is controlled according to the heating condition, so as to adjust the temperature near the air outlet valve body 42 and reduce the risk that the high-temperature and high-humidity gas at the top cover 20 contacts the cold air at the air outlet valve body 42 to generate condensation.

[0046] In an embodiment, the heating assembly 50 further comprises heating fins or other heating devices, which are not limited herein.

[0047] For further reference Figure 1 and Figure 4 In an embodiment, the side wall of the shell 10 is provided with a through hole 12 for the output end of the three-phase copper bar module 33 to pass through. The electric drive controller 100 further comprises a second sealing member 101 sleeved on the output end of the three-phase copper bar and tightly abutting against the hole wall of the through hole 12. Through the above arrangement, the through hole 12 enables the electric drive controller 100 to be connected with external circuits or devices to realize the transmission of electrical signals and the distribution of power. When the output end of the three-phase copper bar passes through the through hole 12, the second sealing member 101 is compressed and tightly abuts against the hole wall of the through hole 12, thereby improving the sealing performance of the through hole 12 and effectively reducing the risk of external impurities entering the inside of the electric drive controller 100.

[0048] In an embodiment, the second sealing member 101 is a sealing rubber ring.

[0049] For further reference Figure 1The application sets the air inlet valve body 41 on the side wall of the shell 10 and sets the air outlet valve body 42 on the top cover 20, so that the air inlet valve body 41 can inhale low-temperature and low-humidity gas to cool the internal components of the shell 10, and the gas can absorb the heat generated by the operation of the internal components and then rise and fully absorb water vapor. At this time, the air outlet valve body 42 at the top cover 20 can smoothly discharge the high-temperature and high-humidity gas gathered above the shell 10, reduce the moisture content inside the electric drive controller 100, and thus reduce the risk of condensation. The application arranges the heating assembly 50 around the air outlet valve body 42, which effectively reduces the risk of condensation caused by the contact between the high-temperature and high-humidity gas at the air outlet valve body 42 and the cold air outside.

[0050] Please refer to Figure 1 and Figure 5 The application also provides a vehicle 200 comprising the above-mentioned electric drive controller 100.

[0051] The above-mentioned electric drive controller 100 is one of the core components of the vehicle 200, responsible for power conversion and transmission of control signals of the vehicle 200, and integrates the shell 10, the top cover 20, the electric drive assembly 30, the valve body assembly 40 and the heating assembly 50 to realize circuit conversion and control signals, while reducing the condensation of the electric drive controller 100 during operation.

[0052] The above is only an embodiment of the application, and does not limit the patent scope of the application. Any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the application.

Claims

1. An electric drive controller, characterized by The electric drive controller comprises: a shell provided with a receiving groove; a top cover arranged on the shell, and a receiving cavity being formed between the top cover and the groove wall of the receiving groove; an electric drive assembly fixedly arranged in the receiving cavity; a valve body assembly comprising an air inlet valve body and an air outlet valve body, the air inlet valve body being embedded in the side wall of the shell, and the air outlet valve body being embedded in the top cover, the air inlet valve body and the air outlet valve body both being in communication with the receiving cavity; a heating assembly connected to one side of the top cover facing the shell, and the heating assembly being arranged around the air outlet valve body.

2. The electrical drive controller of claim 1, wherein, The electric drive assembly comprises: a capacitor module fixedly connected to the bottom of the receiving groove; a power module arranged on one side of the capacitor module facing the top cover, and connected to the output end of the capacitor module; a three-phase copper bar module arranged on one side of the capacitor module, and connected to the output end of the power module, for outputting three-phase current.

3. The electrical drive controller of claim 2, wherein, The electric drive controller further comprises: a cooling plate connected between the capacitor module and the power module, wherein one side of the cooling plate away from the capacitor module is provided with a cooling groove, and the power module is fixedly arranged in the cooling groove.

4. The electrical drive controller of claim 3, wherein, The electric drive controller further comprises: a first sealing member sealingly arranged between the power module and the groove wall of the cooling groove.

5. The electrical drive controller of claim 3, wherein, The cooling plate is provided with a cooling cavity for conveying cooling medium, and the side wall of the shell is provided with a liquid inlet and a liquid outlet in communication with the cooling cavity, and the liquid inlet and the liquid outlet are arranged in a spaced manner.

6. The electrical drive controller of claim 3, wherein, The electric drive assembly further comprises: a heat-conducting member adhesively arranged between the capacitor module and the cooling plate.

7. The electrical drive controller of claim 2, wherein, The side wall of the shell is provided with a through hole for the output end of the three-phase copper bar module to pass through, and the electric drive controller further comprises: a second sealing member sleeved on the output end of the three-phase copper bar module and sealingly abutting against the hole wall of the through hole.

8. The electrical drive controller of claim 2, wherein, The electric drive controller further comprises: a temperature sensor arranged on the power module, for sensing the temperature of the power module.

9. The electrical drive controller of claim 1, wherein, The heating assembly is a ring-shaped heating resistor.

10. A vehicle characterized by comprising: The electric drive controller according to any one of claims 1-9.

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