Electric drive system assembly and vehicle

Abstract

The application discloses an electric drive system assembly and a vehicle, and the electric drive system assembly comprises an electric drive mechanism and a cooling device, wherein the cooling device comprises a cooling piece, a switching piece, a heat conduction plate and a control piece; the cooling piece is used for heat dissipation of the electric drive mechanism; the switching piece is used for controlling the operation and shutdown of the cooling piece; the heat conduction plate is in abutting fit with the electric drive mechanism; the control piece comprises a temperature sensing deformation piece and a touch plate; the temperature sensing deformation piece is in thermal contact with the heat conduction plate; the temperature sensing deformation piece is configured to generate deformation when the temperature changes, so as to drive the touch plate to generate displacement; the touch plate moves to abut against the switching piece to control the operation of the cooling piece; and the cooling piece stops when the touch plate is separated from the switching piece. Through the temperature sensing deformation piece, the cooling device can be started when the working temperature of the electric drive mechanism is high, and the cooling device does not need to be operated in the whole working process of the electric drive mechanism, so that the energy consumption of the electric drive system assembly in operation can be reduced, the use cost can be reduced, and the energy-saving effect can be improved.

Description

Technical Field

[0001] This invention relates to the field of automotive structures, and in particular to an energy-absorbing structure for a vehicle body side pillar and an automobile. Background Technology

[0002] As a core power component of new energy vehicles and industrial automation equipment, the electric drive mechanism continuously generates a large amount of heat during operation. It needs to be equipped with a cooling device to dissipate heat in a timely manner to prevent the component from overheating and failing, and to ensure the stable operation of the equipment.

[0003] In related technologies, the cooling device of the electric drive mechanism operates continuously during operation, resulting in large overall energy loss and high energy consumption. This not only increases the energy consumption of the equipment but also indirectly increases the operating cost, resulting in poor energy-saving effect and room for improvement. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes an electric drive system assembly that can activate a cooling device when the operating temperature of the electric drive mechanism is high, rather than running the cooling device throughout the entire operation of the electric drive mechanism, thereby reducing the operating energy consumption of the electric drive system assembly, reducing operating costs, and improving energy-saving performance.

[0005] The present invention also proposes a vehicle having the above-described electric drive system assembly.

[0006] An electric drive system assembly according to a first aspect of the present invention includes: an electric drive mechanism; a cooling device, the cooling device including: a cooling element for dissipating heat from the electric drive mechanism; a switching element for controlling the operation and shutdown of the cooling element; a heat-conducting plate that abuts against the electric drive mechanism; and a control element including a temperature-sensing deformable element and a contact plate, the temperature-sensing deformable element being in thermal contact with the heat-conducting plate, the temperature-sensing deformable element being configured to deform upon temperature change to drive the contact plate to displacement, the contact plate moving to abut against the switching element to control the operation of the cooling element, and the cooling element stopping when the contact plate is separated from the switching element.

[0007] According to the electric drive system assembly of the present invention, by incorporating a temperature-sensitive deformable element, when the temperature of the electric drive mechanism does not reach the temperature threshold of the temperature-sensitive deformable element, the element does not deform, the contact plate does not contact the switch, and the cooling component does not operate. However, when the temperature of the electric drive mechanism is high, reaching the temperature threshold of the temperature-sensitive deformable element, the element deforms due to heat, thereby driving the contact plate to move. When the contact plate moves to contact the switch, the switch is activated, controlling the cooling component to operate, thus accelerating the heat dissipation of the electric drive mechanism. This allows the cooling device to be activated when the operating temperature of the electric drive mechanism is high, rather than operating throughout the entire operation of the electric drive mechanism. This reduces the energy consumption of the electric drive system assembly, lowers operating costs, and improves energy efficiency.

[0008] In some embodiments, the control component includes: a housing, one end of which is sealed to the heat-conducting plate along its length; a sealing abutment movably disposed within the housing, the sealing abutment sealingly engaging with the inner wall of the housing, the sealing abutment, the heat-conducting plate, and the housing together defining an inner cavity; a temperature-sensing deformable element made of paraffin wax, the paraffin wax filling the inner cavity; and a sliding column located on the side of the sealing abutment away from the heat-conducting plate, the sliding column connecting the sealing abutment and the contact plate.

[0009] In some embodiments, the control element further includes a return element connected between the contact plate and the housing, the return element being used to drive the contact plate back to its initial position separated from the switch element.

[0010] In some embodiments, the housing is provided with two extension arms extending along a first direction, which are respectively disposed on both sides of the housing in the first direction, and the first direction is perpendicular to the length direction of the housing; the slide column is provided with two support plates extending along the first direction, which are respectively disposed on both sides of the slide column in the first direction; the return member is constructed as a tension spring, which is two springs, each spring extending along the length direction of the housing and respectively connected between the extension arms and the support plates.

[0011] In some embodiments, the temperature-sensitive deformable element is constructed as a shape memory metal element, one end of which is connected to the heat-conducting plate, and the other end of which is connected to the touch plate. The switch element is located between the heat-conducting plate and the touch plate. The shape memory metal element is configured to contract when the temperature reaches a preset temperature, thereby causing the touch plate to move toward the switch element.

[0012] In some embodiments, a heat sink is provided on the side of the heat-conducting plate away from the electric drive mechanism; wherein the heat sink is a heat sink fin, there are multiple heat sink fins arranged at intervals, and a heat dissipation channel is formed between two adjacent heat sink fins; or, the heat sink is a heat pipe structure, and the heat pipe structure is filled with a phase change medium.

[0013] In some embodiments, the cooling device further includes a substrate, the cooling element is configured as a cooling fan, the cooling fan is mounted on the substrate, and the switching element is mounted on the substrate; the cooling device further includes a support arm, the control element is fixedly connected to the substrate via the support arm, the touch plate is driven by the temperature-sensing deformation element to move toward the substrate, the heat-conducting plate is fixedly connected to the control element, and the heat-conducting plate is disposed relative to the substrate and close to the electric drive mechanism.

[0014] In some embodiments, there are two substrates, each substrate having a corresponding control element and a heat-conducting plate. The two substrates are spaced apart, and the electric drive mechanism is placed between the two substrates. The heat-conducting plate on the substrate clamps the electric drive mechanism. The cooling device also includes a fixing element that extends along the spacing direction of the two substrates and fixes the two substrates together.

[0015] In some embodiments, a plurality of support pillars are provided on the substrate, the support pillars being used to abut against the electric drive mechanism, and at least one of the support pillars having its surface on the same plane as the side of the heat-conducting plate near the electric drive mechanism.

[0016] The vehicle according to the second aspect of the invention includes an electric drive system assembly according to the first aspect of the invention.

[0017] According to the vehicle of the present invention, by providing the electric drive system assembly described in the first aspect, the operating energy consumption of the electric drive system assembly can be reduced, the operating cost can be reduced, and the energy-saving effect can be improved.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an electric drive system assembly according to some embodiments of the present invention; Figure 2 This is a partial structural schematic diagram of a cooling device according to some embodiments of the present invention; Figure 3 It is based on Figure 2 A magnified view of region A in the example shown; Figure 4This is a cross-sectional view of a control component according to some embodiments of the present invention; Figure 5 This is a schematic diagram of the structure of a heat-conducting plate and a control component according to some embodiments of the present invention; Figure 6 This is a schematic diagram of the structure of a cooling device according to some embodiments of the present invention.

[0020] Figure label: Electric drive system assembly 1000; Electric drive mechanism 100; Cooling device 200; length direction of housing X; first direction Y; Cooling component 1; Cooling fan 11; Switch 2; Heat-conducting plate 3; heat sink 31; heat sink fins 311; Control component 4; Temperature-sensitive deformation component 41; Contact plate 42; Housing 43; Inner cavity 43a; Sealing plate 44; Sliding column 45; Support plate 451; Return component 46; substrate 5; Support arm 6; Extension arm 61; Fastener 7; Fastening bolt 71; Fastening nut 72; Support column 8. Detailed Implementation

[0021] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0022] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. Additionally, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0023] The electric drive system assembly 1000 according to a first aspect embodiment of the present invention will now be described with reference to the accompanying drawings.

[0024] According to an embodiment of the present invention, the electric drive system assembly 1000, such as Figure 1 and Figure 2As shown, the electric drive system assembly 1000 includes an electric drive mechanism 100 and a cooling device 200. The electric drive mechanism 100 is the core power component of new energy vehicles and industrial automation equipment. The electric drive mechanism 100 will continuously generate a large amount of heat during operation. The cooling device 200 is used to dissipate heat from the electric drive mechanism 100 in order to improve the working stability of the electric drive mechanism 100.

[0025] The cooling device 200 includes a cooling element 1, a switching element 2, a heat-conducting plate 3, and a control element 4. The cooling element 1 is used to dissipate heat from the electric drive mechanism 100. The switching element 2 is used to control the operation and shutdown of the cooling element 1. The heat-conducting plate 3 abuts against the electric drive mechanism 100. The control element 4 includes a temperature-sensing deformable element 41 and a contact plate 42. The temperature-sensing deformable element 41 is in thermal contact with the heat-conducting plate 3. The temperature-sensing deformable element 41 is configured to deform when the temperature changes, so as to drive the contact plate 42 to generate displacement. The contact plate 42 moves to abut against the switching element 2 to control the operation of the cooling element 1. When the contact plate 42 separates from the switching element 2, the cooling element 1 stops.

[0026] The cooling device 200 includes a cooling element 1 and a switching element 2. The cooling element 1 is used to dissipate heat from the electric drive mechanism 100. For example, the cooling element 1 may be a cooling fan 11, which drives airflow through the electric drive mechanism 100 to dissipate heat from the electric drive mechanism 100. Alternatively, for another example, the cooling element 1 may also be a liquid cooling pipe, in which liquid flows, and the liquid cooling pipe exchanges heat with the electric drive mechanism 100 through thermal contact to dissipate heat from the electric drive mechanism 100. The switching element 2 is used to control the operation and shutdown of the cooling element 1. For example, the cooling element 1 may be a cooling fan 11, and the switching element 2 is used to control the start and stop of the cooling fan 11. Alternatively, for another example, the cooling element 1 may also be a liquid cooling pipe, and the switching element 2 is used to control the flow and blockage of liquid in the liquid cooling pipe.

[0027] In related technologies, the cooling device of the electric drive mechanism operates continuously during operation, resulting in large overall energy loss and high energy consumption. This not only increases the energy consumption of the equipment but also indirectly increases the operating cost, leading to poor energy-saving effect and room for improvement.

[0028] Therefore, the cooling device 200 of this embodiment of the invention is provided with a control element 4 to drive the switching element 2, thereby enabling real-time control of the operation and shutdown of the cooling element 1 according to the temperature. The cooling device 200 includes a heat-conducting plate 3 and a control element 4. The heat-conducting plate 3 abuts against the electric drive mechanism 100, and the heat-conducting plate 3 and the control element 4 are in thermal contact, so that the heat-conducting plate 3 transfers the heat generated by the electric drive mechanism 100 to the control element 4.

[0029] Among them, the heat-conducting plate 3 not only plays the role of transferring heat, but also exchanges heat with the electric drive mechanism 100, thereby increasing the heat exchange area and improving the heat dissipation efficiency of the electric drive mechanism 100.

[0030] The thermal contact between the temperature-sensing deformable component 41 and the heat-conducting plate 3 means that the temperature-sensing deformable component 41 and the heat-conducting plate 3 can directly contact each other for heat transfer; or, the temperature-sensing deformable component 41 can indirectly contact the heat-conducting plate 3 through a heat-conducting medium such as thermally conductive adhesive or thermally conductive pad; or, the temperature-sensing deformable component 41 can also use a non-contact method with the heat-conducting plate 3 to transfer heat through thermal radiation.

[0031] The heat-conducting plate 3 transfers the heat generated by the electric drive mechanism 100 to the temperature-sensitive deformable member 41 of the control unit 4. The temperature-sensitive deformable member 41 is configured to deform when the temperature changes. In this way, the heat generated by the electric drive mechanism 100 during operation is transferred to the temperature-sensitive deformable member 41, which deforms due to the increase in temperature, thereby driving the contact plate 42 to move.

[0032] When the temperature-sensitive deformable component 41 deforms, it can be elongated, contracted, or expanded in volume, all of which are within the scope of protection of this invention. For example, the temperature-sensitive deformable component 41 can be paraffin wax; when the temperature rises, the paraffin wax expands due to heat, which can push the contact plate 42 to move. Alternatively, for another example, the temperature-sensitive deformable component 41 can be a shape memory metal; when heated, the shape memory metal undergoes a phase change and recovers its shape, thereby stretching or contracting, which can drive the contact plate 42 to move.

[0033] By setting a temperature-sensitive deformation element 41, when the temperature of the electric drive mechanism 100 does not reach the temperature threshold of the temperature-sensitive deformation element 41, the temperature-sensitive deformation element 41 does not deform, the contact plate 42 does not contact the switch element 2, that is, the contact plate 42 is separated from the switch element 2, and the cooling element 1 does not operate; however, when the temperature of the electric drive mechanism 100 is high, the temperature reaches the temperature threshold of the temperature-sensitive deformation element 41, the temperature-sensitive deformation element 41 deforms due to heat, and then drives the contact plate 42 to move. When the contact plate 42 moves to abut against the switch element 2, the switch element 2 is touched to control the operation of the cooling element 1, thereby accelerating the heat dissipation of the electric drive mechanism 100. In this way, the cooling device 200 can be activated when the operating temperature of the electric drive mechanism 100 is high, instead of running the cooling device 200 throughout the entire operation of the electric drive mechanism 100, thereby reducing the operating energy consumption of the electric drive system assembly 1000, reducing operating costs, and improving energy-saving effects.

[0034] According to an embodiment of the present invention, the electric drive system assembly 1000, by providing a temperature-sensing deformable element 41, ensures that when the temperature of the electric drive mechanism 100 does not reach the temperature threshold of the temperature-sensing deformable element 41, the temperature-sensing deformable element 41 does not deform, the contact plate 42 does not contact the switch 2, and the cooling element 1 does not operate. However, when the temperature of the electric drive mechanism 100 is high, reaching the temperature threshold of the temperature-sensing deformable element 41, the temperature-sensing deformable element 41 deforms due to heat, thereby driving the contact plate 42 to move. When the contact plate 42 moves to abut against the switch 2, the switch 2 is activated, controlling the cooling element 1 to operate, thereby accelerating the heat dissipation of the electric drive mechanism 100. This allows the cooling device 200 to be activated when the operating temperature of the electric drive mechanism 100 is high, without having to operate the cooling device 200 throughout the entire operation of the electric drive mechanism 100, thus reducing the operating energy consumption of the electric drive system assembly 1000, lowering operating costs, and improving energy efficiency.

[0035] In some embodiments of the present invention, the switch 2 is configured to be remotely and manually controlled by the user, so that the opening and closing of the cooling element 1 can be manually controlled when the control element 4 fails, thereby improving the working stability of the cooling device 200.

[0036] In some embodiments of the present invention, such as Figure 3 As shown, the switch 2 is constructed as a touch button. When the touch button is activated, it controls the operation of the cooling component 1; when the touch button is not activated, the cooling component 1 stops operating. The touch button has a fast response speed and high reliability.

[0037] In some embodiments of the present invention, the cooling device 200 further includes a return member 46, which is used to drive the touch plate 42 back to its initial position separated from the touch button.

[0038] In this way, when the temperature of the electric drive mechanism 100 does not reach the temperature threshold of the temperature-sensing deformation member 41, the temperature-sensing deformation member 41 does not deform, the touch plate 42 does not contact the touch button, and the cooling component 1 does not operate; while when the temperature of the electric drive mechanism 100 is high, the temperature reaches the temperature threshold of the temperature-sensing deformation member 41, the temperature-sensing deformation member 41 deforms due to heat, and then drives the touch plate 42 to move. When the touch plate 42 moves to contact the touch button, the touch button is touched to control the cooling component 1 to operate, so as to accelerate the heat dissipation of the electric drive mechanism 100.

[0039] When the temperature of the electric drive mechanism 100 drops below the temperature threshold of the temperature-sensitive deformable element 41 after heat dissipation, the temperature-sensitive deformable element 41 returns to its non-deformed state, and the return element 46 can then drive the touch plate 42 back to its initial position separated from the touch button. In this way, the cooling device 200 can be activated when the operating temperature of the electric drive mechanism 100 is high and deactivated when the operating temperature of the electric drive mechanism 100 is low, without having to run the cooling device 200 throughout the entire operation of the electric drive mechanism 100. This reduces the operating energy consumption of the electric drive system assembly 1000, lowers operating costs, and improves energy efficiency.

[0040] In other embodiments of the present invention, the switching element 2 is a multi-stage pressure-sensitive switch, which can control the cooling element 1 to operate at different power levels according to the pressure it receives. In this way, the travel distance of the contact plate 42 driven by the temperature-sensing deformation element 41 varies at different temperatures, and the pressure applied by the contact plate 42 to the multi-stage pressure-sensitive switch also varies. This enables graded speed-controlled heat dissipation, increasing the operating power of the cooling element 1 when the temperature of the electric drive mechanism 100 is high, and reducing the operating frequency of the cooling element 1 when the temperature of the electric drive mechanism 100 is low. This reduces the energy consumption of the electric drive system assembly 1000, lowers operating costs, and improves energy efficiency.

[0041] In some embodiments of the present invention, such as Figure 4 and Figure 5 As shown, the control component 4 includes: a housing 43, a sealing plate 44, and a sliding column 45. One end of the housing 43 in the length direction X is sealed to the heat-conducting plate 3. The sealing plate 44 is movably disposed inside the housing 43 and is sealed to the inner wall of the housing 43. The sealing plate 44, the heat-conducting plate 3, and the housing 43 together define an inner cavity 43a. The temperature-sensing deformation component 41 is made of paraffin wax, which fills the inner cavity 43a. The sliding column 45 is located on the side of the sealing plate 44 away from the heat-conducting plate 3 and connects the sealing plate 44 and the contact plate 42.

[0042] A sealing plate 44 is disposed inside the housing 43, and the sealing plate 44 is sealed to the inner wall of the housing 43. One end of the housing 43 along its length X is sealed to the heat-conducting plate 3. Thus, the sealing plate 44, the heat-conducting plate 3, and the housing 43 together define a sealed inner cavity 43a. By sealing one end of the housing 43 to the heat-conducting plate 3, the housing 43 is in direct contact with the heat-conducting plate 3, resulting in better heat transfer and a faster heating response of the paraffin.

[0043] The temperature-sensitive deformation component 41 is made of paraffin wax. When paraffin wax reaches its melting point, its volume increases by 10% to 20%. This phase change expansion increases the volume of the inner cavity 43a, thus pushing the sealing plate 44 to move. Furthermore, paraffin wax has a melting point between 50°C and 70°C. In addition, paraffin wax has advantages such as low vapor pressure during melting, low chemical reaction rate and good chemical stability, and minimal changes in phase transition temperature and latent heat of phase transition after multiple heat absorption and release, which makes the control component 4 have a long service life and high operational reliability.

[0044] Paraffin wax fills the sealed inner cavity 43a, and when it expands in volume, it can push the sealing plate 44 to move away from the heat-conducting plate 3. The sliding column 45 is connected to the side of the sealing plate 44 away from the heat-conducting plate 3. The sliding column 45 connects the sealing plate 44 and the contact plate 42, and the sealing plate 44 drives the contact plate 42 to move through the sliding column 45.

[0045] By connecting the sliding column 45 to the side of the sealing plate 44 away from the heat-conducting plate 3, the touch plate 42 is located on the side of the housing 43 away from the heat-conducting plate 3. The movement of the touch plate 42 will not interfere with the heat-conducting plate 3, which can improve the working reliability of the control component 4.

[0046] Of course, it is not limited to this. The temperature-sensitive deformation component 41 can also be a thermally expanding fluid such as stearic acid or polyethylene glycol.

[0047] In some embodiments of the present invention, the outer peripheral wall of the sealing abutment 44 is covered with a sealing sleeve, thereby enabling the sealing abutment 44 to seal against the housing 43 and allowing the sealing abutment 44 to move relatively smoothly relative to the housing 43.

[0048] In some embodiments of the present invention, such as Figure 3 As shown, the shell 43 has a hollow structure. The two ends of the shell 43 along its length X are the first end and the second end, respectively. The first end is completely open, allowing the end of the shell 43 to directly contact the heat-conducting plate 3. In this way, the paraffin wax filled in the inner cavity 43a directly contacts the heat-conducting plate 3, resulting in better heat transfer from the heat-conducting plate 3 to the paraffin wax and a faster heating response of the paraffin wax.

[0049] A through hole is provided at the second end of the housing 43. At least part of the sliding column 45 passes through the through hole and is connected to the contact plate 42. The contact plate 42 is located outside the housing 43. The size of the contact plate 42 is much larger than the diameter of the through hole. In this way, the contact plate 42 will not accidentally enter the housing 43, thus improving the working reliability of the control component 4.

[0050] When the temperature of the electric drive mechanism 100 does not reach the melting point of the paraffin, the paraffin is solid and its volume is fixed. The contact plate 42 is not in contact with the trigger button, and the cooling element 1 does not operate. However, when the temperature of the electric drive mechanism 100 is higher, reaching the melting point of the paraffin, the paraffin filling the sealed inner cavity 43a expands due to heat, pushing the sealing plate 44 away from the heat-conducting plate 3. The sealing plate 44 drives the sliding column 45 and the contact plate 42 to move. When the contact plate 42 moves to contact the switch element 2, the switch element 2 is activated, controlling the operation of the cooling element 1 to accelerate the heat dissipation of the electric drive mechanism 100.

[0051] In some embodiments of the present invention, such as Figure 3 and Figure 4 As shown, the control unit 4 also includes a return member 46, which is connected between the contact plate 42 and the housing 43. The return member 46 is used to drive the contact plate 42 back to the initial position separated from the switch unit 2.

[0052] When the temperature of the electric drive mechanism 100 drops below the temperature threshold of the temperature-sensitive deformable element 41 after heat dissipation, the temperature-sensitive deformable element 41 returns to its non-deformed state, and the return element 46 can then drive the contact plate 42 back to its initial position separated from the switch element 2. In this way, the cooling device 200 can be activated when the operating temperature of the electric drive mechanism 100 is high and deactivated when the operating temperature of the electric drive mechanism 100 is low, without having to run the cooling device 200 throughout the entire operation of the electric drive mechanism 100. This reduces the operating energy consumption of the electric drive system assembly 1000, lowers operating costs, and improves energy efficiency.

[0053] In some embodiments of the present invention, such as Figure 3 As shown, the control component 4 includes: a housing 43, a sealing plate 44, and a sliding column 45. One end of the housing 43 in the length direction X is sealed to the heat-conducting plate 3. The sealing plate 44 is movably disposed inside the housing 43 and is sealed to the inner wall of the housing 43. The sealing plate 44, the heat-conducting plate 3, and the housing 43 together define an inner cavity 43a. The temperature-sensing deformation component 41 is made of paraffin wax, which fills the inner cavity 43a. The sliding column 45 is located on the side of the sealing plate 44 away from the heat-conducting plate 3 and connects the sealing plate 44 and the contact plate 42.

[0054] When the temperature of the electric drive mechanism 100 is high, reaching the melting point of paraffin, the paraffin filling the sealed inner cavity 43a expands due to heat, which pushes the sealing plate 44 to move away from the heat-conducting plate 3. The sealing plate 44 drives the sliding column 45 and the contact plate 42 to move. When the contact plate 42 moves to contact with the switch 2, the switch 2 is activated to control the operation of the cooling element 1, thereby accelerating the heat dissipation of the electric drive mechanism 100.

[0055] When the temperature of the electric drive mechanism 100 drops below the melting point of the paraffin, the paraffin turns solid again and its volume shrinks. The return member 46 then drives the contact plate 42, the slide column 45 and the sealing plate 44 to move together toward the heat guide plate 3, bringing the contact plate 42 to the initial position separated from the switch member 2, thereby achieving energy saving.

[0056] In some embodiments of the present invention, such as Figure 3 As shown, the housing 43 is provided with two extension arms 61 extending along the first direction Y, which are respectively placed on both sides of the housing 43 in the first direction Y, and the first direction Y is perpendicular to the length direction X of the housing 43; the slide column 45 is provided with two support plates 451 extending along the first direction Y, which are respectively placed on both sides of the slide column 45 in the first direction Y; the return member 46 is constructed as a tension spring, and there are two tension springs, each of which extends along the length direction X of the housing 43 and is respectively connected between the extension arm 61 and the support plate 451.

[0057] The housing 43 is provided with two extension arms 61, which are arranged opposite each other along the first direction Y. The sliding column 45 is provided with two support plates 451, which are also arranged opposite each other along the first direction Y. That is, the extension arms 61 and the support plates 451 are directly opposite each other along the length direction X of the housing 43. The return member 46 is constructed as a tension spring, and there are also two tension springs, which are respectively connected between the extension arms 61 and the support plates 451.

[0058] When the temperature of the electric drive mechanism 100 has not reached the melting point of the paraffin, the contact plate 42 is in its initial position separated from the switch element 2, and the tension spring is in its normal state. When the temperature of the electric drive mechanism 100 is higher, reaching the melting point of the paraffin, the paraffin filling the sealed inner cavity 43a expands due to heat, which pushes the sealing abutment plate 44 to move away from the heat-conducting plate 3. The sealing push plate is connected to the sliding column 45, and the movement of the sealing push plate resists the elastic force of the tension spring, causing the tension spring to stretch. Therefore, during the process of the control element 4 abutting against the switch element 2 to control the operation of the cooling element 1, the tension spring has a tendency to drive the sliding column 45 to move towards the heat-conducting plate 3.

[0059] When the temperature of the electric drive mechanism 100 drops below the melting point of the paraffin, the paraffin turns solid again and its volume shrinks. The elastic force of the tension spring can then drive the contact plate 42, the slide column 45 and the sealing plate 44 to move together in the direction of the heat guide plate 3, thus moving the contact plate 42 to the initial position where it is separated from the switch 2.

[0060] By setting the return element 46 as a tension spring, the tension spring has a simple structure, high reliability, and can reduce the manufacturing cost of the control element 4. By setting two extension arms 61 and two support plates 451, which are arranged opposite each other along the first direction Y, the force on the slide column 45 can be uniform. The tension spring can drive the slide column 45, the sealing plate 44, and the contact plate 42 to move stably, thereby improving the reliability of the return movement of the contact plate 42.

[0061] By providing a support plate 451 extending along the first direction Y on the slide column 45, the return member 46 is connected to the slide column 45. Compared with the design of setting the support plate 451 on the contact plate 42, the functionality of the contact plate 42 is enhanced, the occurrence of accidental contact between the support plate 451 and the switch is reduced, and the working reliability of the control member 4 is improved.

[0062] Of course, it is not limited to this; the return component 46 can also be an elastic rubber component.

[0063] In some other embodiments of the present invention, the temperature-sensitive deformation member 41 is constructed as a shape memory metal member, one end of which is connected to the heat-conducting plate 3 and the other end of which is connected to the touch plate 42. The switch member 2 is located between the heat-conducting plate 3 and the touch plate 42. The shape memory metal member is configured to contract when the temperature reaches a preset temperature, so as to drive the touch plate 42 toward the switch member 2.

[0064] The temperature-sensitive deformation component 41 is constructed as a shape memory metal component. The shape memory metal is configured to shrink when the temperature reaches a preset temperature, thereby shortening its length. The two ends of the shape memory metal component are fixedly connected to the heat-conducting plate 3 and the touch plate 42, respectively. Thus, when the length of the shape memory metal component shortens, it can drive the touch plate 42 to move in the direction of the heat-conducting plate 3. The switch component 2 is located on the moving path of the touch plate 42. When the touch plate 42 moves to abut against the switch component 2, it can control the operation of the cooling component 1.

[0065] By designing the temperature-sensitive deformable component 41 as a shape memory metal component, the shape memory metal component has a faster response speed and can control the cooling component 1 more quickly. Moreover, compared to using a thermally expanding fluid such as paraffin as the temperature-sensitive deformable component 41, the structure of the shape memory metal component is simpler. It can directly connect the heat-conducting plate 3 and the contact plate 42 using the shape memory metal component, without the need to design a sealed space for the temperature-sensitive deformable component 41.

[0066] In some embodiments of the present invention, the temperature-sensitive deformation member 41 is constructed as a shape memory metal member, which is configured to contract when the temperature reaches a preset temperature and extend when the temperature drops below the preset temperature. This allows the cooling device 200 to be activated when the operating temperature of the electric drive mechanism 100 is high and deactivated when the operating temperature of the electric drive mechanism 100 is low, rather than operating the cooling device 200 throughout the entire operation of the electric drive mechanism 100. This reduces the energy consumption of the electric drive system assembly 1000, lowers operating costs, and improves energy efficiency.

[0067] In some embodiments of the present invention, such as Figure 5 As shown, a heat sink 31 is provided on the side of the heat-conducting plate 3 that is away from the electric drive mechanism 100.

[0068] The heat-conducting plate 3 transfers the heat generated by the electric drive mechanism 100 to the temperature-sensing deformation member 41 of the control member 4. The heat-conducting plate 3 is in contact with the electric drive structure. The heat-conducting plate 3 can not only transfer heat, but also exchange heat with the electric drive mechanism 100, thereby increasing the heat exchange area and improving the heat dissipation efficiency of the electric drive mechanism 100.

[0069] A heat sink 31 is provided on the side of the heat-conducting plate 3 away from the electric drive mechanism 100, which can improve the heat dissipation speed of the heat-conducting plate 3 and improve the heat dissipation efficiency of the electric drive mechanism 100.

[0070] In some embodiments of the present invention, such as Figure 5 As shown, the heat sink 31 consists of multiple heat sink fins 311, which are spaced apart, forming a heat dissipation channel between adjacent heat sink fins 311. By setting multiple heat sink fins 311, the heat exchange area can be increased, which is beneficial to improving the heat dissipation efficiency of the electronic control mechanism.

[0071] In other embodiments of the present invention, the heat sink 31 is a heat pipe structure filled with a phase change medium. The phase change cutoff within the heat pipe structure can absorb a large amount of heat during phase change, which is beneficial to improving the heat dissipation efficiency of the electronic control mechanism.

[0072] In some embodiments of the present invention, such as Figure 1 , Figure 2 and Figure 6 As shown, the cooling device 200 also includes a base plate 5, the cooling component 1 is configured as a cooling fan, the cooling fan is mounted on the base plate 5, and the switch component 2 is mounted on the base plate 5; the cooling device 200 also includes a support arm 6, the control component 4 is fixedly connected to the base plate 5 through the support arm 6, the touch plate 42 is driven by the temperature-sensing deformation component 41 to move toward the base plate 5, the heat-conducting plate 3 is fixedly connected to the control component 4, and the heat-conducting plate 3 is positioned relative to the base plate 5 and close to the electric drive mechanism 100.

[0073] The base plate 5 forms the main structure of the cooling device 200. The cooling component 1 and the switching component 2 are both mounted on the base plate 5. The control component 4 is fixedly connected to the heat-conducting plate 3, and the control plate is fixedly connected to the base plate 5 via the support arm 6. In this way, the cooling device 200 is integrated into one unit, which facilitates cooperation with the electric drive mechanism 100 and improves assembly efficiency.

[0074] The control component 4 is fixedly mounted on the substrate 5 via support arms 6. The support arm 6 includes an extension arm 61 extending along the first direction Y and a fixed arm extending along the spacing direction between the substrate 5 and the heat-conducting plate 3. The fixed arm is fixedly connected to the substrate 5. The first direction Y is perpendicular to the spacing direction between the substrate 5 and the heat-conducting plate 3. There are two support arms 6, which are arranged opposite to each other along the first direction Y. By providing two support arms 6, the installation stability of the control component 4 can be improved.

[0075] In this way, the heat-conducting plate 3 is located on the side of the substrate 5 closer to the electric drive mechanism 100, and the heat-conducting plate 3 can directly transfer heat from the electric drive mechanism 100 to the temperature-sensing deformation member 41, which can improve the response speed of the control member 4. The substrate 5 is located on the side of the heat-conducting plate 3 away from the electric drive mechanism 100, and the control member 4 is located on the side of the heat-conducting plate 3 closer to the substrate 5, so that the control member 4 can directly contact the switching member 2 on the substrate 5, reducing interference and improving the operational reliability of the cooling device 200.

[0076] By designing the cooling component 1 as a cooling fan, the cooling fan can drive the airflow to dissipate heat from the electric drive mechanism 100, thereby improving the heat dissipation efficiency of the electric drive mechanism 100. In this way, the substrate 5 can be set away from the heat conduction plate 3 from the electric drive mechanism 100, so as to meet the rapid heat transfer of the heat conduction plate 3 without affecting the heat dissipation of the electric drive mechanism 100.

[0077] In some embodiments of the present invention, the control element 4 includes: a housing 43, a sealing plate 44, and a sliding column 45. One end of the housing 43 in the length direction X is sealed to the heat-conducting plate 3. The length direction X of the housing 43 is the spacing direction between the substrate 5 and the heat-conducting plate 3. The sealing plate 44 is movably disposed inside the housing 43. The sealing plate 44 is sealed to the inner wall of the housing 43. The sealing plate 44, the heat-conducting plate 3, and the housing 43 together define an inner cavity 43a. The temperature-sensing deformation element 41 is made of paraffin wax, which fills the inner cavity 43a. The sliding column 45 is located on the side of the sealing plate 44 away from the heat-conducting plate 3. The sliding column 45 connects the sealing plate 44 and the contact plate 42.

[0078] The control component 4 is fixedly connected to the base plate 5 by the support arm 6. There are two support arms 6, which are arranged opposite each other on the housing 43 along the first direction Y. The support arms 6 fix the housing 43 to the base plate 5 and make the housing 43 and the base plate 5 spaced apart, so as to satisfy the movement of the touch plate 42 relative to the base plate 5.

[0079] Furthermore, the control component 4 also includes a tension spring for driving the touch plate 42 back to be separated from the switch component 2, and the support arm 6 is used not only for fixing the control component 4, but also for connecting the tension springs. The support arm 6 includes an extension arm 61 extending along the first direction Y, and a support plate 451 extending along the first direction Y is provided on the slide column 45. There are two support plates 451, which are respectively placed on both sides of the slide column 45 in the first direction Y. Each tension spring extends along the length direction X of the housing 43 and is respectively connected between the extension arm 61 and the support plate 451.

[0080] By connecting the tension spring between the extension arm 61 and the support plate 451, the tension spring can be supported by the support arm 6 without the need for an additional tension spring fixing structure, which simplifies the structure and helps save manufacturing costs.

[0081] In some embodiments of the present invention, such as Figure 6 As shown, there are two substrates 5, and each substrate 5 is provided with a control component 4 and a heat-conducting plate 3. The two substrates 5 are spaced apart, and the electric drive mechanism 100 is placed between the two substrates 5. The heat-conducting plate 3 on the substrate 5 clamps the electric drive mechanism 100. The cooling device 200 also includes a fixing component 7, which extends along the spacing direction of the two substrates 5 and fixes the two substrates 5 together.

[0082] The substrate 5 consists of two substrates that clamp the electric drive mechanism 100, thereby improving the heat dissipation speed of the electric drive mechanism 100.

[0083] The cooling device 200 also includes a fixing member 7, which fixes the two base plates 5 together, thereby fixing the distance between the two base plates 5 and improving the reliability of the cooperation between the electric drive mechanism 100 and the cooling device 200. When the electric drive system assembly 1000 is used in a vehicle, fixing the two base plates 5 together can reduce the collision between the electric drive mechanism 100 and the cooling device 200 when the vehicle is in motion, which helps to extend the service life of the cooling device 200.

[0084] In some embodiments of the present invention, there are two substrates 5 and they are arranged at intervals in the vertical direction. The lower substrate 5 is used to support the electric drive mechanism 100, and the upper substrate 5 covers the electric drive mechanism 100. The cooling elements 1 on the two substrates 5 together cool the electric drive mechanism 100.

[0085] Of course, it is not limited to this. The substrate 5 can also be two and clamp the electric drive mechanism 100 on both sides along the horizontal direction; or, the substrate 5 can also be four or more, wherein two substrates 5 are located on the upper and lower sides of the electric drive mechanism 100 respectively, and the other two substrates 5 are located on the horizontal sides of the electric drive mechanism 100, thereby improving the heat dissipation efficiency of the electric drive mechanism 100.

[0086] In some specific embodiments of the present invention, such as Figure 6As shown, the fixing member 7 includes a fixing bolt 71 and a fixing nut 72. Fixing screw holes are provided on the two substrates 5 along a spaced-apart direction. The fixing bolt 71 is threaded into each of the two fixing screw holes, thereby connecting the two substrates 5. The head of the fixing bolt 71 engages with one of the substrates 5, and the fixing nut 72 is threaded into the fixing bolt 71 and also engages with the other substrate 5, thereby fixing the two substrates 5 together. By fixing the two substrates 5 together using the fixing bolt 71 and the fixing nut 72, the structural stability of the cooling device 200 can be improved, reducing the possibility of damage to the electric drive assembly caused by the impact of the substrates 5.

[0087] As shown in the figure, there are multiple fasteners 7, which fix the corners of the two base plates 5 together, thereby improving the structural stability of the cooling device 200.

[0088] In some specific embodiments of the present invention, such as Figure 6 As shown, the substrate 5 is rectangular, and there are four fasteners 7. The fasteners 7 fix the four corners of the substrate 5 to each other. In this way, not only can the connection stability of the substrate 5 be improved, but the structural stability of the cooling device 200 can also be improved. The fasteners 7 occupy less space between the two substrates 5, which is beneficial for placing the electric drive mechanism 100 between the two substrates 5 and improving the assembly efficiency of the electric drive system assembly 1000.

[0089] In some embodiments of the present invention, such as Figure 6 As shown, a plurality of support pillars 8 are provided on the substrate 5. The support pillars 8 are used to abut against the electric drive mechanism 100. The surface of at least one support pillar 8 is on the same plane as the side of the heat-conducting plate 3 near the electric drive mechanism 100.

[0090] A support column 8 is provided on the substrate 5, and the support column 8 abuts against the electric drive mechanism 100, thereby improving the stability of the cooperation between the electric drive mechanism 100 and the cooling device 200. Furthermore, the surface of at least one support column 8 is located on the same plane as the side of the heat-conducting plate 3 near the electric drive mechanism 100, so that the support column 8 shares the pressure of the heat-conducting plate 3, which helps to reduce the occurrence of damage to the heat-conducting plate 3 due to pressure.

[0091] In some specific embodiments of the present invention, such as Figure 6 As shown, there are two substrates 5 arranged vertically at intervals. The lower substrate 5 supports the electric drive mechanism 100, and the upper substrate 5 covers the electric drive mechanism 100. The cooling elements 1 on the two substrates 5 work together to cool the electric drive mechanism 100. By providing support columns 8 on the substrates 5, the electric drive mechanism 100 can be supported, improving the installation stability of the electric drive mechanism 100, and the pressure on the heat-conducting plate 3 can be distributed, which helps to reduce the occurrence of damage to the heat-conducting plate 3 due to pressure.

[0092] In some embodiments of the present invention, a pad is provided at the end of the support column 8 to increase the mating area with the electric drive mechanism 100, thereby improving the support stability of the electric drive mechanism 100.

[0093] The structure and operation of an electric drive system assembly 1000 according to some specific embodiments of the present invention are described below with reference to the accompanying drawings.

[0094] The cooling device 200 of this embodiment mainly includes two cover plates, which are symmetrically arranged on both sides of the electric drive mechanism 100 and locked by four fixing bolts 71 and nuts to form a clamping installation structure, which not only provides external protection for the electric drive mechanism 100, but also provides a stable installation foundation for internal components.

[0095] Four support columns 8 are fixed to the outer wall of the cover plate near the electric drive mechanism 100. The end of the support column 8 is fixed with a pad. The pad and the heat conduction plate 3 are on the same mounting plane. After assembly, the pad and the heat conduction plate 3 are simultaneously pressed against the outer wall of the electric drive mechanism 100. The support column 8 and the pad cooperate to provide stable support for the electric drive mechanism 100, while ensuring that the heat conduction plate 3 and the electric drive mechanism 100 are in close contact, ensuring efficient heat conduction.

[0096] The cooling device 200 also includes two L-shaped brackets fixed to the inner wall of the cover plate. A housing 43 is fixed to one end of the two L-shaped brackets away from the cover plate. A heat-conducting plate 3 is fixed to one end of the housing 43 near the electric drive mechanism 100. The housing 43 is filled with paraffin wax, with one end of the paraffin wax abutting against the heat-conducting plate 3 and the other end abutting against a sealing plate 44. The outer periphery of the sealing plate 44 is covered with a sealing sleeve to ensure the housing 43 is sealed and prevent paraffin wax leakage. A sliding column 45 is fixed to the side of the sealing plate 44 away from the heat-conducting plate 3. A contact plate 42 is fixed to the end of the sliding column 45, and the contact plate 42 corresponds to the position of the touch button on the cover plate.

[0097] Two support plates 451 are fixed to the side wall of the sliding column 45. A first fixing ear is provided on the support plate 451, and a second fixing ear is provided on the outer wall of the L-shaped bracket. A tension spring is elastically connected between the first fixing ear and the second fixing ear, and the tension spring provides a reset tension for the sliding column 45.

[0098] Four cooling fans 11 are fixed inside the cover plate. A touch button is electrically connected to the cooling fans 11. When the touch button is pressed, the cooling fans 11 are powered on and started. When the touch button is not pressed, the cooling fans 11 are powered off and stopped. Multiple evenly distributed heat dissipation fins are fixed on the side of the heat conduction plate 3 away from the electric drive mechanism 100. The heat dissipation fins are located on both sides of the outer side of the housing 43 to increase the heat dissipation area of ​​the heat conduction plate 3 and achieve passive heat dissipation.

[0099] When the device is working, the heat generated by the electric drive mechanism 100 is transferred to the heat conduction plate 3. At low temperatures, the paraffin wax contracts, and the tension spring pulls the slide column 45 and the contact plate 42 to reset. When the contact plate 42 does not press the touch button, the cooling fan 11 is de-energized, and the heat is passively dissipated through natural convection of the heat dissipation fins. When the temperature rises, the paraffin wax expands due to heat, pushing the sealing plate 44, the slide column 45 and the contact plate 42 to move. When the contact plate 42 presses the touch button, the cooling fan 11 is energized and starts active cooling. When the temperature drops, the paraffin wax contracts, the tension spring drives the components to reset, and the cooling fan 11 automatically stops, thus achieving adaptive cooling in a cycle.

[0100] When using the electric drive system assembly 1000 according to some embodiments of the present invention, the following steps are included: Step S1: Assembly and positioning. Place the two cover plates symmetrically on both sides of the electric drive mechanism 100 body, and tighten them evenly with four fixing bolts 71 and fixing nuts 72, so that the pad at the end of the support column 8 and the heat conduction plate 3 are in close contact with the outer wall of the electric drive mechanism 100, ensuring efficient heat conduction and completing the overall assembly and positioning of the device.

[0101] Step S2: Pre-testing. Check the clearance between the touch plate 42 and the touch button at room temperature. Confirm that the touch plate 42 does not press the touch button when the paraffin wax has not expanded, and the cooling fan 11 remains powered off and in standby mode. Gently push the slide column 45 to check the smooth return of the tension spring. Then check the wiring of the cooling fan 11, the sealing of the housing 43, and the integrity of the heat dissipation fins. Power on and confirm that the cooling fan 11 starts and stops normally under no-load conditions.

[0102] Step S3: Passive cooling at low temperature. When the temperature of the electric drive mechanism 100 is ≤45℃, the heat conduction plate 3 absorbs heat and dissipates heat through natural convection through the heat dissipation fins on the outside of the housing 43. At this time, the paraffin wax remains contracted, the tension spring pulls the slide column 45 and the contact plate 42, the touch button is disconnected, the cooling fan 11 does not start, and low-load zero-energy cooling is achieved.

[0103] Step S4: Medium-temperature adaptive heat dissipation. When the temperature of the electric drive mechanism 100 body is between 45℃ and 65℃, the heat conduction plate 3 transfers heat, causing the paraffin wax to expand slowly. This pushes the sealing plate 44, which in turn causes the sliding column 45 and the contact plate 42 to lightly press the touch button. The cooling fan 11 starts at low speed to enhance heat dissipation. After the temperature drops below the threshold, the paraffin wax contracts, the tension spring resets the sliding column 45, and the cooling fan 11 stops automatically.

[0104] Step S5: High-temperature efficient heat dissipation. When the temperature of the electric drive mechanism 100 is >65℃, the paraffin wax fully expands and continuously squeezes the sealing plate 44, the touch plate 42 fully presses the touch button, and the cooling fan 11 runs at full speed to force convection heat dissipation; when the temperature exceeds 75℃, it automatically switches to intermittent heat dissipation to avoid overloading the cooling fan 11 while maintaining efficient cooling.

[0105] Step S6: Pre-cooling upon startup. Before starting the electric drive mechanism 100 in a high-temperature environment, manually press the touch button for three seconds to allow the cooling fan 11 to run for one minute to pre-cool the electric drive mechanism 100 and the internal components of the device, reducing the temperature rise at startup and protecting the core components from high-temperature impact.

[0106] Step S7: Low temperature preheating protection. When the ambient temperature is below 0℃, the paraffin wax shrinks to its minimum, the touch plate 42 disengages from the touch button, the cooling fan 11 remains off, and the electric drive mechanism 100 slowly heats up using its own heat to prevent the components from freezing and being damaged. At the same time, the heat sink fins help maintain the initial operating temperature.

[0107] Step S8: Long-term stable operation. For continuous operation scenarios, no manual intervention is required. It automatically switches between passive, low-speed, and full-speed cooling modes based on the temperature of the electric drive mechanism, dynamically matching cooling requirements to achieve stable 24-hour unattended operation.

[0108] The vehicle according to the second aspect of the present invention includes an electric drive system assembly 1000 according to the first aspect of the present invention.

[0109] According to an embodiment of the present invention, by providing the electric drive system assembly 1000 described in the first aspect, the operating energy consumption of the electric drive system assembly 1000 can be reduced, the operating cost can be reduced, and the energy-saving effect can be improved.

[0110] Other components of the electric drive system assembly according to embodiments of the present invention, such as the electric drive mechanism and its operation, are known to those skilled in the art and will not be described in detail here.

[0111] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this 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. Therefore, they should not be construed as limitations on this invention.

[0112] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0113] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0114] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0115] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0116] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An electric drive system assembly, characterized in that, include: Electric drive mechanism; Cooling device, the cooling device comprising: A cooling component for dissipating heat from the electric drive mechanism; A switching element, used to control the operation and shutdown of the cooling element; A heat-conducting plate, which abuts against the electric drive mechanism; The control component includes a temperature-sensitive deformable element and a contact plate. The temperature-sensitive deformable element is in thermal contact with the heat-conducting plate. The temperature-sensitive deformable element is configured to deform when the temperature changes, thereby driving the contact plate to move to abut against the switch element to control the operation of the cooling element. When the contact plate is separated from the switch element, the cooling element stops.

2. The electric drive system assembly according to claim 1, characterized in that, The control component includes: A housing, one end of which is sealed to the heat-conducting plate along its length; A sealing plate is movably disposed within the housing, and the sealing plate is in a sealing fit with the inner wall of the housing. The sealing plate, the heat-conducting plate, and the housing together define an inner cavity. The temperature-sensing deformation element is paraffin wax, which fills the inner cavity. A sliding column is located on the side of the sealing plate away from the heat-conducting plate, and the sliding column connects the sealing plate and the contact plate.

3. The electric drive system assembly according to claim 2, characterized in that, The control component also includes a return component connected between the contact plate and the housing, which is used to drive the contact plate back to its initial position separated from the switch component.

4. The electric drive system assembly according to claim 3, characterized in that, The housing is provided with two extension arms extending along a first direction, which are respectively located on both sides of the housing in the first direction. The first direction is perpendicular to the length direction of the housing. The sliding column is provided with two support plates extending along the first direction, which are respectively placed on both sides of the sliding column in the first direction. The return component is constructed as a tension spring, and there are two tension springs, each of which extends along the length of the housing and is respectively connected between the extension arm and the support plate.

5. The electric drive system assembly according to claim 1, characterized in that, The temperature-sensitive deformation component is constructed of a shape memory metal component. One end of the shape memory metal component is connected to the heat-conducting plate, and the other end of the shape memory metal component is connected to the contact plate. The switching component is located between the heat-conducting plate and the contact plate. The shape memory metal component is configured to contract when the temperature reaches a preset temperature, thereby moving the contact plate toward the switch component.

6. The electric drive system assembly according to any one of claims 1-5, characterized in that, A heat dissipation component is provided on the side of the heat-conducting plate opposite to the electric drive mechanism; The heat sink is a heat sink fin, and there are multiple heat sink fins arranged at intervals, with a heat dissipation channel formed between two adjacent heat sink fins. Alternatively, the heat sink may be a heat pipe structure, and the heat pipe structure may be filled with a phase change medium.

7. The electric drive system assembly according to any one of claims 1-5, characterized in that, The cooling device further includes a base plate, the cooling component is configured as a cooling fan, the cooling fan is mounted on the base plate, and the switching component is mounted on the base plate; The cooling device also includes a support arm, the control component is fixedly connected to the substrate via the support arm, the touch plate is driven by the temperature-sensing deformation component to move toward the substrate, the heat-conducting plate is fixedly connected to the control component, and the heat-conducting plate is disposed relative to the substrate and close to the electric drive mechanism.

8. The electric drive system assembly according to claim 7, characterized in that, There are two substrates, and each substrate is provided with the control component and the heat-conducting plate. The two substrates are spaced apart, and the electric drive mechanism is placed between the two substrates. The heat-conducting plate on the substrate clamps the electric drive mechanism. The cooling device further includes a fixing member that extends along the spacing direction of the two substrates and fixes the two substrates together.

9. The electric drive system assembly according to claim 8, characterized in that, The substrate is provided with a plurality of support pillars, which are used to abut against the electric drive mechanism. At least one of the support pillars has its surface on the same plane as the side of the heat-conducting plate near the electric drive mechanism.

10. A vehicle, characterized in that, Includes the electric drive system assembly according to any one of claims 1-9.

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