Spring clip for temperature sensor, stator and motor

Abstract

The utility model discloses a spring clip for a temperature sensor, which comprises a main body part which extends along a first direction and is provided with a first side and a second side which are positioned on two sides along a second direction; the first bending part is arranged on the first side, an opening and a containing space are defined by the first bending part and the main body part, the temperature sensor is contained in the containing space, and the opening is located in the side, in the first direction, of the containing space and used for allowing the temperature sensor to penetrate; the first limiting piece is arranged on the side, close to the opening, of the first bending part and used for limiting the first bending part in the second direction and the third direction; the second bending part is arranged on the second side and used for clamping the straight section of the copper bar, and the length of the second bending part accounts for at least two fifths of the length of the straight section in the first direction. The spring clip has high clamping stability for the copper bar, and the temperature sensor is prevented from falling off due to deformation caused by pulling of the cable. The utility model also provides a stator and a motor, the motor comprises the temperature sensor, and the temperature sensor is accommodated in the stator and is used for measuring the temperature of the motor.

Description

Technical Field

[0001] This utility model relates to the field of automotive motor technology, and in particular to a spring clip, stator and motor for a temperature sensor. Background Technology

[0002] When a car's electric motor is running, its temperature needs to be monitored to ensure safe operation. Currently, the market typically uses wire bonding, epoxy adhesive, or silicone to fix the temperature sensor to the copper wires of the stator.

[0003] The wire binding process is complex and inefficient. Using epoxy or silicone adhesives can lead to inconsistent coating thickness, resulting in poor product consistency during mass production. Furthermore, the adhesives are prone to expansion and cracking at elevated temperatures, posing a risk of failure later on. Additionally, the compatibility of epoxy adhesives with lubricants must be considered.

[0004] Therefore, a quick-connect metal clip design emerged, in which the temperature sensor is inserted into the metal clip, and then the metal clip is clamped onto the copper busbar of the motor stator to complete the fixation of the temperature sensor and the stator. The quick-connect metal clip design is suitable for mass production, is easy to operate, has good product consistency, and does not require consideration of compatibility issues with lubricating oil. It can effectively solve the defects caused by the above-mentioned wire binding or epoxy glue fixing methods. At the same time, the metal clip conducts heat quickly, which can further improve the response time of the temperature sensor, thereby improving the performance of the motor.

[0005] However, to ensure thermal conductivity, the metal clip is usually quite thin. After the temperature sensor is inserted into the metal clip, the sensor cable may be slightly pulled during actual motor operation. This pulling can cause deformation at the location housing the temperature sensor, resulting in the sensor shaking or falling off. Additionally, the connection between the metal clip and the copper busbar may also become unstable due to prolonged operation. Utility Model Content

[0006] The purpose of this invention is to solve the technical problems of low clamping strength and easy detachment of temperature sensors in existing motor temperature sensor spring clips. This invention provides a temperature sensor spring clip, a stator, and a motor. The temperature sensor spring clip has high clamping stability against the copper busbar and will not deform due to cable pulling, thus preventing the temperature sensor from shaking or falling off.

[0007] To solve the above-mentioned technical problems, an embodiment of this utility model discloses a spring clip for a temperature sensor, comprising:

[0008] The main body extends along a first direction and has a first side and a second side located on opposite sides along a second direction;

[0009] a first bending portion is arranged at the first side of the main body portion, the first bending portion and the main body portion define a communicating opening and a receiving space, the receiving space is used for accommodating a temperature sensor, the opening is located at one side of the receiving space along the first direction and is used for allowing the temperature sensor to pass in;

[0010] a first limiting member is arranged at one side of the first bending portion along the first direction close to the opening, and the first limiting member is used for limiting the first bending portion in the second direction and the third direction;

[0011] a second bending portion is arranged at the second side of the main body portion, the second bending portion is used for clamping a flat section of the copper bar, and along the first direction, the length of the second bending portion accounts for at least two-fifths of the length of the flat section;

[0012] the main body portion is made of a heat-conducting material, and the second bending portion is made of an elastic material; the first direction, the second direction and the third direction are perpendicular to each other.

[0013] By using the above technical scheme, firstly, the first bending portion located at the first side of the main body portion is used for accommodating the temperature sensor, and the second bending portion located at the second side of the temperature sensor spring clip is used for clamping the copper bar. Exemplarily, the main body portion serves as an intermediate medium of the first bending portion and the second bending portion, and needs to be made of a heat-conducting material (for example, a metal heat-conducting material such as aluminum or copper, a ceramic heat-conducting material such as aluminum oxide, and a carbon-based heat-conducting material such as graphite or carbon nanotube); at the same time, the second bending portion is made of an elastic material (for example, a metal material such as aluminum or copper, and a plastic, fiber or composite material).

[0014] It should be noted that the main body portion and the second bending portion can also be made of the same material which has both elasticity and heat-conducting performance, for example, copper, aluminum, alloy and the like, and the present application does not limit this. In addition, it should be noted that the first bending portion can also be made of the same type of material as the second bending portion and / or the main body portion.

[0015] Based on the above structure, the temperature sensor and the copper bar of the motor stator can be effectively fixed by using a quick plug-in design, so as to realize the detection of the temperature of the stator assembly (for example, the copper bar). Compared with the scheme in which the temperature sensor is fixed on the stator by binding a wire, using epoxy glue or silicone, the assembly process of the temperature sensor spring clip is simple, the disassembly is convenient, the product consistency is good, the temperature sensor spring clip is suitable for mass production, and the production efficiency is high.

[0016] Furthermore, the length of the second bend in the first direction is made to occupy at least two-fifths of the length of the straight section of the copper busbar, thereby extending the length of the second bend in the first direction and providing a longer support surface (i.e., the first surface and the third surface described below), increasing the clamping stability of the second bend.

[0017] On the other hand, it is understandable that after the temperature sensor is housed in the first bend, a cable is connected to the temperature sensor to connect to other components of the motor (such as the control unit) in order to achieve detection. During the assembly process or during motor operation, the cable will be subjected to a certain amount of tension, which will cause some deformation to the first bend near the opening, causing the temperature sensor to shake or fall off.

[0018] Therefore, the first limiting member is positioned on the side of the first bend near the opening to limit the first bend in the second and third directions upwards. In other words, when the first bend is subjected to external force, the first limiting member can prevent slight displacement of the first bend near the opening in the second and third directions upwards, thus preventing the temperature sensor from shaking or falling off.

[0019] According to another specific embodiment of the present invention, the second bending portion includes two clamping plates. Along the third direction, the two clamping plates are arranged opposite to each other and spaced apart, and define a clamping space with the main body portion. The clamping space is used to clamp the straight section of the copper busbar.

[0020] According to another specific embodiment of the present invention, each clamping plate includes a first portion and a second portion connected to each other. The first portion includes a first surface and a second surface disposed opposite to each other along the third direction, and the second portion includes a third surface and a fourth surface disposed opposite to each other along the second direction; wherein...

[0021] Along the second direction, one end of the first surface is connected to the second side, the other end of the first surface is connected to the third surface, one end of the second surface is connected to the second side, and the other end of the second surface is connected to the fourth surface;

[0022] The first surface is used to adhere to the straight segment along the third direction, and the third surface is used to adhere to the straight segment along the second direction.

[0023] Using the above technical solution, the second bending section includes two opposing and spaced-apart clamping plates. Each clamping plate includes a first part and a second part connected together. The first surface of the first part is attached to the straight section of the copper busbar along a third direction, and the third surface is attached to the straight section of the copper busbar along a second direction. In other words, the first part and the second part are respectively attached to the straight section along the third and second directions, thereby achieving a near 360° clamping effect on the straight section. Furthermore, the length of the first and second parts along the first direction is extended, making the connection of the second bending section more reliable and stable, preventing vibration problems during motor operation.

[0024] According to another specific embodiment of the present invention, the first limiting member includes two limiting plates, which are arranged opposite to each other and spaced apart along the third direction, and the two limiting plates are used to press the first bent portion along the second direction and the third direction.

[0025] According to another specific embodiment of the present invention, each of the limiting plates includes a third part and a fourth part connected to each other, the third part including a fifth surface and a sixth surface disposed opposite to each other along the third direction, and the fourth part including a seventh surface and an eighth surface disposed opposite to each other along the second direction; wherein...

[0026] Along the second direction, one end of the fifth surface is connected to the first side, the other end of the fifth surface is connected to the seventh surface, one end of the sixth surface is connected to the first side, and the other end of the sixth surface is connected to the eighth surface;

[0027] The fifth surface is attached to the first bend along the third direction, and the seventh surface is attached to the first bend along the second direction.

[0028] Using the above technical solution, the first limiting member includes two limiting plates, each of which includes a third part and a fourth part. The fifth surface of the third part is in contact with the first bent portion along a third direction, and the seventh surface of the fourth part is in contact with the first bent portion along a second direction. That is, the third part and the fourth part are in contact with the first bent portion along the third and second directions, respectively, thereby enabling the first bent portion to be compressed along the third and second directions. When the first bent portion is subjected to external force, the corresponding positions of the third and fourth parts of the first bent portion will not deform.

[0029] Moreover, as mentioned above, the first limiting member is located near the opening of the first bend. This position near the opening is most susceptible to deformation due to the pulling of the external cable. Therefore, the above-mentioned arrangement of the third and fourth parts can effectively prevent the opening from shifting due to deformation, thus avoiding the temperature sensor inside the first bend from falling off.

[0030] According to another specific embodiment of the present invention, it further includes: a second limiting member, the second limiting member being disposed on the side of the first bent portion away from the opening, and the second limiting member being used to limit the first bent portion in the second direction and the third direction upward.

[0031] According to another specific embodiment of the present invention, a limiting port is provided on the second side of the main body, the limiting port penetrates the main body along the second direction, and the limiting port is used to engage with the temperature sensor to limit the displacement of the temperature sensor along the first direction.

[0032] According to another specific embodiment of the present invention, it further includes: at least one third limiting member, one end of the at least one third limiting member being connected to the first bent portion, and the other end of the at least one third limiting member being used to abut against the temperature sensor to limit the displacement of the temperature sensor along the first direction and / or the second direction.

[0033] This utility model discloses a stator, comprising:

[0034] Winding;

[0035] A copper busbar includes a bent section and a straight section connected together. One end of the bent section is used to connect to the winding, and the other end of the bent section is connected to the straight section. The straight section extends along a first direction, and grooves are provided on both sides of the straight section along a third direction.

[0036] A spring clip for a temperature sensor as described in any of the above embodiments; wherein...

[0037] One portion of the second bent portion of the temperature sensor spring clip is accommodated in the groove and fits against the groove along the third direction; the other portion of the second bent portion fits against the straight section along the second direction.

[0038] The straight section has a first length in the first direction, and the second bent portion of the temperature sensor spring clip has a second length, the second length being at least two-fifths of the first length.

[0039] By adopting the above technical solution, firstly, the first bent portion located on the first side of the main body is used to accommodate the temperature sensor, while the second bent portion located on the second side of the temperature sensor spring clip is used to clamp the copper busbar. This allows for the effective fixing of the temperature sensor to the copper busbar of the motor stator using a quick-connect design, thereby enabling the detection of the stator assembly temperature. Compared to the current market solution of fixing the temperature sensor to the stator by binding wire, epoxy glue, or silicone, the above-mentioned temperature sensor spring clip has a simple assembly process, is easy to disassemble, has good product consistency, is suitable for mass production, and has high production efficiency.

[0040] Secondly, the length of the second bend in the first direction is at least two-fifths of the length of the straight section of the copper busbar. Extending the length of the second bend in the first direction provides a longer support surface (i.e., the first and third surfaces described later), increasing the clamping stability of the second bend. Simultaneously, the grooves on both sides of the copper busbar allow the temperature sensor to be spring-clamped into a portion of the second bend (i.e., the first portion described above), ensuring a tight fit between the second bend and the grooves of the copper busbar, resulting in a secure connection between them.

[0041] According to another specific embodiment of the present invention, each side of the groove includes a bottom wall, a first limiting wall, and a second limiting wall. The bottom wall extends along the first direction, and the first limiting wall and the second limiting wall are disposed opposite to each other and respectively connected to both ends of the bottom wall.

[0042] Along the third direction, a portion of the second bend is in contact with the bottom wall;

[0043] Along the first direction, the first limiting wall and the second limiting wall are respectively used for abutting one of the portions of the second bend to limit the second bend in the first direction.

[0044] Using the above technical solution, when the second bend is stuck in the groove, a part of the second bend (i.e. the first part of the second bend mentioned above) is in contact with the bottom wall of the groove. At the same time, when the motor runs, the second bend produces a short displacement along the first direction, the second bend can be limited by the first limiting wall or the second limiting wall to prevent the second bend from coming out of the straight section of the copper busbar along the first direction.

[0045] According to another specific embodiment of the present invention, a guide surface is provided at the end of the straight section away from the bent section, the guide surface is connected to the first limiting wall, and the extending direction of the guide surface intersects with the first direction.

[0046] The present invention also discloses an electric motor, including a temperature sensor and a stator as described in any of the above embodiments, wherein the temperature sensor is housed in the housing space of the stator.

[0047] According to another specific embodiment of the present invention, the temperature sensor is provided with a first limiting protrusion, which is in concave-convex cooperation with the limiting opening of the main body.

[0048] According to another specific embodiment of the present invention, the temperature sensor is provided with at least one second limiting protrusion, the at least one second limiting protrusion and the first limiting protrusion are located on opposite sides of the temperature sensor along the second direction, and the at least one second limiting protrusion abuts against at least one third limiting member of the temperature sensor spring clip. Attached Figure Description

[0049] Figure 1 This diagram illustrates the application of a spring clip for a temperature sensor according to an embodiment of the present invention.

[0050] Figure 2 This is a perspective view of the stator copper busbar according to an embodiment of the present invention.

[0051] Figure 3 This invention illustrates the connection structure between the spring clip and the copper busbar for a temperature sensor according to an embodiment of the present invention. Figure 1 .

[0052] Figure 4 This invention illustrates the connection structure between the spring clip and the copper busbar for a temperature sensor according to an embodiment of the present invention. Figure 2 .

[0053] Figure 5 This invention illustrates a three-dimensional representation of a spring clip for a temperature sensor according to an embodiment of the present invention. Figure 1 .

[0054] Figure 6 This invention illustrates a three-dimensional representation of a spring clip for a temperature sensor according to an embodiment of the present invention. Figure 2 .

[0055] Figure 7 This invention illustrates a three-dimensional representation of a spring clip for a temperature sensor according to an embodiment of the present invention. Figure 3 .

[0056] Figure 8 This invention illustrates a three-dimensional representation of a spring clip for a temperature sensor according to an embodiment of the present invention. Figure 4 .

[0057] Figure 9 This invention illustrates a three-dimensional representation of a spring clip for a temperature sensor according to an embodiment of the present invention. Figure 5 .

[0058] Figure 10 This invention illustrates a three-dimensional representation of a spring clip for a temperature sensor according to an embodiment of the present invention. Figure 6 .

[0059] Figure 11 This invention illustrates a three-dimensional representation of a spring clip for a temperature sensor according to an embodiment of the present invention. Figure 7 . Detailed Implementation

[0060] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0061] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0062] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model 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 the utility model.

[0063] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0064] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0065] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0066] refer to Figures 1 to 3 To facilitate subsequent description, before describing the specific structure of the stator and temperature sensor spring clip 100 in the embodiments of this application, the embodiments of this application first exemplarily define the X direction, Y direction, and Z direction. For example... Figures 1 to 3 As shown, the X direction is the thickness direction when the temperature sensor is normally clamped by the spring clip 100, which can also be understood as the thickness direction of the straight section of the copper busbar 200 in the stator. The Y direction is the width direction when the temperature sensor is normally clamped by the spring clip 100, which can also be understood as the width direction of the straight section of the copper busbar 200 in the stator. The Z direction is the height direction when the temperature sensor is normally clamped by the spring clip 100, which can also be understood as the height direction of the straight section of the copper busbar 200 in the stator.

[0067] In this embodiment, the X, Y, and Z directions intersect each other. The following explanation will use the example of the X, Y, and Z directions being mutually perpendicular to each other. It should be noted that the perpendicularity in this embodiment is not absolute; approximate perpendicularity due to manufacturing and assembly errors (e.g., an angle of 89.9° between two structural features) is also within the scope of perpendicularity in this embodiment. The limitations on perpendicularity will not be repeated later.

[0068] refer to Figures 1 to 3 This application provides a stator comprising: a temperature sensor spring clip 100, a copper busbar 200, and windings (not shown in the figure). The temperature sensor spring clip 100 is mounted on the copper busbar 200, also known as a copper bus or copper busbar, which is mainly used to connect the windings to an external power supply (or control system). Although the windings of the stator in this application embodiment are not shown in the figure, it can be understood that the copper busbar 200 is connected to the ends of the windings.

[0069] like Figure 2As shown, the copper busbar 200 includes a bent section 210 and a straight section 220 connected to each other. One end of the bent section 210 is used to connect to a winding (not shown in the figure), and the other end of the bent section 210 is connected to the straight section 220. The straight section 220 is along a first direction (e.g., Figure 3 (Extended in the Z direction as shown in the figure).

[0070] Furthermore, it can be seen that along a third direction (such as...) Figure 2 and Figure 3 (As shown in the Y direction), the straight section has grooves 221 extending along the first direction on both sides. Figure 3 As shown, the grooves 221 on both sides are used for the spring clips 100 of the temperature sensor to hold it.

[0071] Additionally, this application embodiment also provides a motor, which includes the aforementioned stator and a temperature sensor (such as...). Figure 1 and Figure 3 As shown in the illustration, this application uses a thermistor 300 as an example to illustrate the temperature sensor, but it is not limited to this. In addition, the thermistor 300 can be, for example, a negative temperature coefficient thermistor (NTC), a positive temperature coefficient thermistor (PTC), or other types of thermistors. This application does not impose specific limitations on this.

[0072] like Figure 1 and Figure 3 As shown, the thermistor 300 is assembled inside the temperature sensor spring clip 100 and connected to the stator copper busbar 200 via the temperature sensor spring clip 100. The copper busbar 200 is then connected to the winding. One end of the thermistor 300 (e.g., Figure 3 The end pointed to in the Z1 direction is connected to cable 410, and can be connected to the control unit (not shown in the figure) through port 420.

[0073] In other words, the temperature sensor spring clip 100 in this embodiment of the application is used to hold the copper busbar 200 on the one hand and to accommodate the thermistor 300 on the other hand, thereby realizing the electrical connection between the winding, the copper busbar 200, the temperature sensor spring clip 100, the thermistor 300, the cable 410, the port 420 and the control unit in sequence.

[0074] The spring clip 100 for the temperature sensor according to an embodiment of this application is described in detail below with reference to the accompanying drawings.

[0075] refer to Figure 3 The temperature sensor spring clip 100 of this application embodiment includes: a main body 110, a first bending portion 120, a first limiting member 130, and a second bending portion 140.

[0076] For example, the main body 110 is a plate structure. The main body 110 is along a first direction (e.g., Figure 3 Extending in the Z direction shown in the figure, along the thickness direction of the main body 110 (i.e., the second direction, such as...). Figure 3 The main body 110 has a first side 111 located on opposite sides (i.e., in the X direction shown in the figure). Figure 3 The side indicated by the X1 direction) and the second side 112 (i.e. Figure 3 (The side indicated by the X2 direction).

[0077] The first side 111 of the main body 110 (i.e. Figure 3 The first bending portion 120 is provided on the side indicated by the X1 direction. The first bending portion 120 and the main body portion 110 define a receiving space 1200. It can be seen that the thermistor 300 of the motor is housed in the receiving space 1200.

[0078] In addition, such as Figure 3 As shown, the first bend 120 also has an opening 121, which communicates with the receiving space 1200, and the opening 121 is located on one side of the receiving space 1200 along the first direction (i.e., Figure 3 The side indicated by the Z1 direction is used for the insertion of the thermistor 300.

[0079] Continue to refer to Figure 3 The first bending portion 120 is further provided with a first limiting member 130 on its exterior, which can limit its movement. For example... Figure 3 As shown, the first limiting member 130 is located along the first direction of the first bent portion 120 (e.g., ...). Figure 3 The side closest to the opening 121 (shown in the Z direction) is the side shown in the diagram. Figure 3 (the side indicated by the Z1 direction), and the first limiting member 130 can form a second direction (such as) for the first bent portion 120. Figure 3 The X direction shown in the figure) and the third direction (such as Figure 4 The limit is shown in the Y direction.

[0080] As can be seen, the first limiting member 130 wraps around the first bent portion 120 in the second direction and the third direction. Therefore, when the first bent portion 120 is subjected to external force, the first limiting member 130 can prevent the position of the first bent portion 120 near the opening 121 from undergoing slight displacement in the second direction and the third direction. The specific limiting process will be explained in detail later when the specific structure of the first limiting member 130 is described.

[0081] refer to Figure 1 and Figure 3 and combined Figure 4 The second side of the main body 110 (i.e.Figure 4 The second bending portion 140 is provided on the side indicated by the X2 direction, and the second bending portion 140 is used to clamp the straight section 220 of the copper busbar 200.

[0082] like Figure 2 As shown, along the first direction (e.g.) Figures 1 to 4 (shown in the Z direction), the straight section 220 has a first length L1, and the second bend 140 has a second length L2. In this embodiment, the second length L2 of the second bend 140 accounts for at least two-fifths of the first length L1 of the straight section 220.

[0083] In other words, in this embodiment, the length of the second bent portion 140 in the first direction is extended, thereby providing a longer support surface (i.e., the first surface and the third surface described below), increasing the clamping stability of the second bent portion 140. Further, the second bent portion 140 is clamped in the grooves 221 on both sides of the straight section 220 (e.g., Figure 2 As shown, since the length of the second bend 140 is extended, during the actual operation of the motor, the second bend 140, in conjunction with the groove 221, enables the temperature sensor spring clip 100 to be vibration-free on the copper busbar 200, thereby improving the clamping effect of the temperature sensor spring clip 100.

[0084] This application does not impose specific limitations on the length ratio of the second bent portion 140 and the straight section 220 along the first direction. For example, the second length L2 of the second bent portion 140 can also account for 41%, 47%, 50% of the first length L1 of the straight section 220, etc. As long as the length ratio of the second bent portion 140 to the main body part (i.e. the straight section 220) used for clamping in the copper busbar 200 is not less than 40%, it falls within the protection scope of this application.

[0085] refer to Figure 2 Using the above technical solution, firstly, the first bent portion 120 located on the first side 111 of the main body 110 is used to accommodate the thermistor 300, while the second bent portion 140 located on the second side 112 of the temperature sensor spring clip 100 is used to clamp the copper busbar 200. Exemplarily, the main body 110, as the intermediate medium between the first bent portion 120 and the second bent portion 140, needs to be made of a thermally conductive material (e.g., metallic thermally conductive materials such as aluminum and copper, ceramic thermally conductive materials such as alumina, or carbon-based thermally conductive materials such as graphite and carbon nanotubes); simultaneously, the second bent portion 140 is made of an elastic material (e.g., metallic materials such as aluminum and copper, or plastics, fibers, composite materials, etc.).

[0086] It should be noted that the main body 110 and the second bending portion 140 can also be made of the same material that has both elasticity and thermal conductivity, such as copper, aluminum, alloys, etc., and this application does not impose any restrictions on this. It should also be noted that the first bending portion 120 can also be made of the same type of material as the second bending portion 140 and / or the main body 1140.

[0087] Based on the above structure, the temperature sensor spring clip 100 of this application embodiment can effectively fix the thermistor 300 to the copper busbar 200 of the motor stator with a quick-connect design, so as to realize the detection of the temperature of the stator assembly (e.g., copper busbar 200). Compared with the current market solution of fixing the thermistor 300 to the stator by binding wire, epoxy glue or silicone, the above-mentioned temperature sensor spring clip 100 has a simple assembly process, convenient disassembly, good product consistency, is suitable for mass production, and has high production efficiency.

[0088] Furthermore, the length of the second bend 140 in the first direction is at least two-fifths of the length of the straight section 220 of the copper busbar 200. The second bend 140 is extended in the first direction to provide a longer support surface (i.e., the first surface and the third surface described below) and increase the clamping stability of the second bend 140.

[0089] On the other hand, it is understandable that after the thermistor 300 is housed in the first bend 120, in order to achieve detection, the thermistor 300 will be connected to a cable for connecting other components of the motor (such as the control unit). During the assembly process or during motor operation, the cable will be subjected to a certain amount of pulling, which will cause a certain deformation of the first bend 120 near the opening 121, causing the thermistor 300 to shake or fall off.

[0090] Therefore, the first limiting member 130 is positioned on the side of the first bent portion 120 near the opening 121 to limit the first bent portion 120 in the second and third directions upwards. That is, when the first bent portion 120 is subjected to external force, the first limiting member 130 can prevent slight displacement of the first bent portion 120 near the opening 121 in the second and third directions, thus preventing the temperature sensor from shaking or falling off.

[0091] The following is a detailed description of the stator busbar 200 and the cooperation between the busbar 200 and the temperature sensor spring clip 100.

[0092] As can be seen from the preceding text, the straight section 220 of the copper busbar 200 is provided with a groove 221 for the spring clip 100 of the temperature sensor to hold.

[0093] refer to Figure 2In some possible implementations, the groove 221 on each side includes a bottom wall 2211, a first limiting wall 2212, and a second limiting wall 2213 connected to each other.

[0094] As can be seen, the bottom wall 2211 is along the first direction (e.g. Figure 2 Extending in the Z direction shown in the diagram, the first limiting wall 2212 and the second limiting wall 2213 are disposed opposite each other along the first direction, with the top of the first limiting wall 2212 and the top of the bottom wall 2211 (i.e., Figure 2 The second limiting wall 2213 is connected to the bottom end of the bottom wall 2211 (i.e., the end pointed to in the Z1 direction), and the bottom end of the bottom wall 2211 is connected to the bottom end of the bottom wall 2211. Figure 4 Connect the end that is pointed to in the Z2 direction.

[0095] refer to Figure 4 and Figure 4 Along a third direction (such as) Figure 2 (As shown in the Y direction), a portion of the second bend 140 is in contact with the bottom wall 2211. That is, the first surfaces of the two first portions of the second bend 140, which will be described later, are in contact with the bottom wall 2211.

[0096] Along the first direction (e.g.) Figure 2 (shown in the Z direction), the first limiting wall 2212 and the second limiting wall 2213 are respectively used for abutting one portion of the second bent portion 140 (that is, the two first portions of the second bent portion 140, which will be described later) to form a limiting effect on the second bent portion 140 in the first direction. That is, when the second bent portion 140 abuts against the groove 221, the top end of one portion (i.e., Figure 2 The end (pointed to in the Z1 direction) can abut against the first limiting wall 2212, thereby preventing the second bent portion 140 from continuing upward in the first direction (e.g. Figure 2 (as shown in the Z1 direction) moves. Simultaneously, the bottom end of one of these parts (i.e., Figure 2 The end (pointed to in the Z2 direction) can abut against the second limiting wall 2213, thereby preventing the second bent portion 140 from continuing downward in the first direction (e.g. Figure 3 (The movement is shown in the Z2 direction).

[0097] Using the above technical solution, when the second bent portion 140 is stuck in the groove 221, a part of the second bent portion 140 (i.e. the first part of the second bent portion 140 mentioned above) is in contact with the bottom wall 2211 of the groove 221. At the same time, when the motor is running, the second bent portion 140 generates a short displacement along the first direction, the second bent portion 140 can be limited by the first limiting wall 2212 or the second limiting wall 2213 to prevent the second bent portion 140 from coming out of the straight section 220 of the copper busbar 200 along the first direction.

[0098] In some possible implementations, a guide surface 222 is provided at the end of the straight section 220 away from the bent section 210. The extension direction of the guide surface 222 intersects the first direction, and the guide surface 222 is connected to the first limiting wall 2212.

[0099] refer to Figure 3 and Figure 3 In some possible embodiments, the copper busbar 200 further includes a connecting section 230 and an insulating block 240, the insulating block 240 wrapping around the connecting section 230 and one end of the bent section 210 (i.e. Figure 3 The end indicated by the X2 direction is connected to the connecting segment 230, along the second direction (such as...). Figure 3 (shown in the X direction), the straight section 220 is located between the insulating block 240 and the aforementioned first bent portion 120.

[0100] The insulating block 240 has a mating surface 241, and the first bent portion 120 of the temperature sensor spring clip 100 also has a limiting surface 122, along a first direction (e.g. Figure 3 (shown in the Z direction), the limiting surface 122 is disposed opposite to the opening 121 of the first bent portion 120.

[0101] On the one hand, the limiting surface 122 itself can limit the thermistor 300 located in the receiving space 1200. Specifically, since the limiting surface 122 is arranged opposite to the opening 121, it can limit the thermistor 300 in the first direction (which can also be understood as stopping it) after the thermistor 300 is installed into the receiving space 1200 through the opening 121.

[0102] On the other hand, the limiting surface 122 can also mate with the mating surface 241 of the insulating block 240 to facilitate the operator's verification of the correct installation orientation. Specifically, when the temperature sensor spring clip 100 is installed in the correct orientation, as... Figure 5 As shown, along the second direction, the first bent portion 120 is located on the first side 111 of the main body portion 110, and the insulating block 240 is located on the second side 112 of the main body portion 110. That is, the mating surface 241 and the limiting surface 122 are located on different sides of the main body portion 110, so the temperature sensor spring clip 100 can be correctly installed.

[0103] Conversely, if the mating surface 241 and the limiting surface 122 are located on the same side of the main body 110, then, if the first direction continues (e.g., Figure 5When the temperature sensor spring clip 100 is pressed down in the Z direction (as shown in the diagram), the mating surface 241 and the limiting surface 122 will abut against each other, and the temperature sensor spring clip 100 will not be able to continue to be installed downward in the first direction. It can be understood that the mating surface 241 and the limiting surface 122 make it easy for the operator to realize whether the installation direction of the temperature sensor spring clip 100 is correct or incorrect.

[0104] In some possible implementations, refer to Figure 5 The main body 110 has a limiting opening 113 on its second side, and the limiting opening 113 is along the second direction (e.g., Figure 5 The thermistor 300 penetrates the main body 110 in the X direction shown in the diagram. Simultaneously, the thermistor 300 is provided with a first limiting protrusion 301. It can be seen that the limiting port 113 and the first limiting protrusion 301 of the thermistor 300 are in a concave-convex fit, thus, when the thermistor 300 is installed into the first bent portion, the thermistor 300 cannot move along the first direction (e.g., X direction). Figures 1 to 5 The Z direction shown in the figure) and the third direction (such as Figures 5 to 7 Displacement occurs in the Y direction (as shown in the diagram).

[0105] refer to Figure 5 By adopting the above technical solution, firstly, the first bent portion 120 on the first side of the temperature sensor spring clip 100 is used to accommodate the thermistor 300, while the second bent portion 140 on the second side of the temperature sensor spring clip 100 is used to clamp the copper busbar 200. This allows for the effective fixing of the thermistor 300 to the copper busbar 200 of the motor stator using a quick-connect design, thereby enabling the detection of the temperature of the stator assembly (e.g., the copper busbar 200). Compared to the current market solution of fixing the thermistor 300 to the stator by binding wire, epoxy glue, or silicone, the above-mentioned temperature sensor spring clip 100 has a simple assembly process, is easy to disassemble, has good product consistency, is suitable for mass production, and has high production efficiency.

[0106] Secondly, the length of the second bend 140 in the first direction is made to occupy at least two-fifths of the length of the straight section 220 of the copper busbar 200, thereby extending the length of the second bend 140 in the first direction and providing a longer support surface (i.e., the first surface and the third surface described later), increasing the clamping stability of the second bend 140. Simultaneously, the grooves 221 on both sides of the copper busbar 200 allow a portion (i.e., the first portion 1411) of the temperature sensor spring clip 100 to be engaged in the grooves 221, meaning that the second bend 140 and the grooves 221 of the copper busbar 200 are tightly fitted together, resulting in a secure connection between them.

[0107] The second bend 140 of the temperature sensor spring clip 100 will be described in detail below.

[0108] refer toFigure 6 In some possible implementations, the second bend 140 includes two clamping plates 141 along a third direction (e.g., Figure 7 (As shown in the Y direction), the two clamping plates 141 are positioned opposite each other and spaced apart. It can also be seen that the two clamping plates 141 and the main body 110 define a clamping space 1400, which is used to clamp the object within the aforementioned groove in the straight section.

[0109] In some possible implementations, each clamping plate 141 includes a first portion 1411 and a second portion 1412 connected to each other. Exemplarily, the first portion 1411 and the second portion 1412 are arranged vertically, but are not limited thereto. For example, the first portion 1411 and the second portion 1412 may also be at an angle of 70°, 89.5°, etc., as long as they can be respectively attached to the corresponding positions of the straight section to achieve the clamping angle, they are all within the protection scope of the embodiments of this application.

[0110] like Figure 6 and Figure 7 As shown, the first part 1411 includes a direction along a third party (such as...) Figure 6 and Figure 7 A first surface 14111 and a second surface 14112 are arranged opposite each other in the Y direction shown in the figure. The second portion 1412 includes a portion along the second direction (e.g., Figure 7 and Figure 6 The third surface 14121 (as shown in the X direction) is positioned relative to it. Figure 6 (as shown) and the fourth surface 14122 (as shown) Figure 7 (As shown).

[0111] As can be seen, along the second direction (such as...) Figure 6 and Figure 6 (shown in the X direction), one end of the first surface 14111 (i.e. Figure 7 The end pointed to in the X1 direction is connected to the second side 112 of the main body 110, and the other end of the first surface 14111 (i.e. Figure 6 The end pointed to in the X2 direction) and the third surface 14121 (as shown) Figure 6 (As shown) connection.

[0112] Accordingly, one end of the second surface 14112 (i.e. Figure 6 The end pointed to in the X1 direction is also connected to the second side 112 of the main body 110, and the other end of the second surface 14112 (i.e. Figure 7 The end (pointed in the X2 direction) is connected to the fourth surface 14122.

[0113] refer to Figure 4 and Figure 6 and combined Figure 7The aforementioned first surface 14111 can be along a third direction (e.g. Figure 7 The third surface 14121 is used to conform to the straight section 220 in the Y direction shown in the figure, and is used along the second direction (e.g., the Y direction shown in the figure) to the straight section 220. Figure 7 (The X direction shown in the figure) fits into the straight segment 220.

[0114] Using the above technical solution, the second bending portion 140 includes two opposing and spaced-apart clamping plates 141. Each clamping plate 141 includes a first portion 1411 and a second portion 1412 connected together. The first surface 14111 of the first portion 1411 is attached to the straight section 220 of the copper busbar 200 along a third direction, and the third surface 14121 is attached to the straight section 220 of the copper busbar 200 along a second direction. In other words, the first portion 1411 and the second portion 1412 are respectively attached to the straight section 220 along the third and second directions, thereby achieving a near 360° grip on the straight section 220. Simultaneously, the length of the first portion 1411 and the second portion 1412 along the first direction is extended, making the connection of the second bending portion 140 more reliable and stable, preventing vibration problems during motor operation.

[0115] As described above, the first limiting member 130 prevents slight displacement in the second and third directions of the position of the first bent portion 120 near the opening 121. The first limiting member 130 of the temperature sensor spring clip 100 will be described in detail below.

[0116] refer to Figure 7 In some possible implementations, the first limiting member 130 includes two limiting plates 131 (e.g., Figure 7 As shown), along a third direction (such as...) Figure 7 (as shown in the Y direction), the two limiting plates 131 are opposite to each other and spaced apart, and the two limiting plates 131 can move along the second direction (e.g., the Y direction). Figure 8 The X direction shown in the figure) and the third direction (such as Figure 9 (As shown in the Y direction) the first bend 120 is squeezed.

[0117] refer to Figure 9 In some possible implementations, each of the aforementioned limiting plates 131 includes a third portion 1311 and a fourth portion 1312 connected to each other. Exemplarily, the third portion 1311 and the fourth portion 1312 are arranged vertically, but this is not a limitation. For example, the third portion 1311 and the fourth portion 1312 may also be at an angle of 70°, 89.5°, etc., as long as they can respectively conform to the first bent portion 120 at the corresponding position to achieve the angle of compression of the first bent portion 120, all of which fall within the protection scope of this application's embodiments.

[0118] refer toFigure 9 Part 3, 1311 includes along a third direction (such as...) Figure 9 The fifth surface 13111 and the sixth surface 13112 are arranged opposite each other in the Y direction shown in the figure. The fourth part 1312 includes a fifth surface 13111 and a sixth surface 13112 arranged in the second direction (e.g., the Y direction shown in the figure). Figure 9 The seventh surface 13121 and the eighth surface 13122 are set opposite each other in the X direction shown in the figure.

[0119] Continue to refer to Figure 9 Along the second direction (such as) Figure 9 (shown in the X direction), one end of the fifth surface 13111 (i.e. Figure 9 The end pointed to in the X2 direction is connected to the first side 111 of the main body 110, and the other end of the fifth surface 13111 (i.e. Figure 9 The end (pointed in the X1 direction) is connected to the seventh surface 13121.

[0120] Accordingly, one end of the sixth surface 13112 (i.e. Figure 9 The end pointed to in the X2 direction is connected to the first side 111 of the main body 110, and the other end of the sixth surface 13112 (i.e. Figure 8 The end (pointed in the X1 direction) is connected to the eighth surface 13122.

[0121] refer to Figure 9 and combined Figure 9 The fifth surface 13111 along the third direction (e.g. Figures 7 to 9 The seventh surface 13121 (as shown in the Y direction) is attached to the first bend 120, and the seventh surface 13121 is along the second direction (as shown in the Y direction) Figure 9 (The X direction shown in the figure) is attached to the first bend 120.

[0122] refer to Figure 9 Using the above technical solution, the first limiting member 130 includes two limiting plates 131. Each limiting plate 131 includes a third part 1311 and a fourth part 1312. The fifth surface 13111 of the third part 1311 is in contact with the first bent portion 120 along a third direction, and the seventh surface 13121 of the fourth part 1312 is in contact with the first bent portion 120 along a second direction. That is, the third part 1311 and the fourth part 1312 are in contact with the first bent portion 120 along the third and second directions, respectively, so that the first bent portion 120 can be squeezed along the third and second directions. When the first bent portion 120 is subjected to external force, the corresponding positions of the third part 1311 and the fourth part 1312 of the first bent portion 120 will not deform.

[0123] Moreover, as mentioned above, the first limiting member 130 is located near the opening 121 of the first bending portion 120. This position near the opening 121 is most susceptible to deformation due to the pulling of external cables. Therefore, the above-mentioned arrangement of the third part 1311 and the fourth part 1312 can effectively prevent the opening 121 from shifting due to deformation, and avoid the thermistor 300 inside the first bending portion 120 from falling off.

[0124] In some possible implementations, the temperature sensor spring clip 100 of this application embodiment further includes: a second limiting member 150, the second limiting member 150 being disposed on the side of the first bent portion 120 away from the opening 121 (i.e. Figure 9 (The side indicated by the Z2 direction), the second limiting member 150 can also form a second direction (such as) for the first bent portion 120. Figure 8 The X direction shown in the figure) and the third direction (such as Figure 10 The second limiting member 150 in this embodiment differs from the first limiting member 130 only in its setting position on the first bent portion 120. The two have the same structure and limiting principle, so the specific structure of the second limiting member 150 will not be described in detail. The structure of the first limiting member 130 can be referred to.

[0125] refer to Figure 11 , Figure 8 and Figure 10 In some possible implementations, the temperature sensor spring clip 100 of this application embodiment further includes a third limiting member 160. Exemplarily, Figure 11 , Figure 8 and Figure 10 The temperature sensor spring clip 100 shown includes two third limiting members 160, but the number of third limiting members 160 is not specifically limited in the embodiments of this application. For example, one, three, four or other numbers of third limiting members 160 may also be provided.

[0126] exist Figure 11 In the illustrated embodiment, both third limiting members 160 of the temperature sensor spring clip 100 are implemented as first limiting portions 161; in Figure 8 In the illustrated embodiment, one of the two third limiting members 160 of the temperature sensor spring clip 100 is implemented as a first limiting part 161 and the other is implemented as a second limiting part 162; Figure 8 In the embodiment shown, both third limiting members 160 of the temperature sensor spring clip 100 are implemented as second limiting parts 162.

[0127] The specific implementation of the third limiting member 160 will be described in detail below with reference to the accompanying drawings.

[0128] like Figure 8As shown, the third limiting member 160 includes two first limiting portions 161, which are positioned along a first direction (e.g., ...). Figure 8 The first limiting part 161, as shown in the Z direction, is spaced apart. It includes a first plate 1611 and a second plate 1612. The first plate 1611 and the second plate 1612 are connected together. The second plate 1612 is elastically abutted against the thermistor 300.

[0129] Specifically, one end of the first plate 1611 is connected to the first bent portion 120, and the other end of the first plate 1611 is connected to the second plate 1612. Furthermore, the first plate 1611 and the second plate 1612 are connected at an angle. This application does not impose specific limitations on the angle between the first plate 1611 and the second plate 1612; as long as the second plate 1612 can limit the thermistor 300 in the second direction, it falls within the protection scope of this application.

[0130] Furthermore, such as Figure 8 As shown, the surface of the thermistor 300 is planar, so the second plate 1612 abuts against the surface of the thermistor 300 through the limiting surface 16121 (i.e., the bottom surface of the second plate 1612) to limit the thermistor 300 in the second direction (e.g., Figure 8 The displacement in the X direction shown in the figure. This can be understood as the second plate 1612 being able to displace the thermistor 300 by means of the pressure it applies (e.g., in the X direction). Figure 8 The pressure f shown in the figure restricts the thermistor 300 to a certain extent in the first direction (e.g., Figure 10 The Z direction shown in the figure) and the third direction (such as Figure 10 The displacement in the Y direction is shown in the figure.

[0131] like Figure 10 As shown, one of the third limiting members 160 is implemented as a first limiting part 161, and the other is implemented as a second limiting part 162. In this embodiment, only the second limiting part 162 will be described, and the first limiting part 161 will not be described in detail.

[0132] As can be seen, the second limiting part 162 and the first limiting part 161 are along the first direction (e.g., Figure 10 The second limiting part 162 includes a third plate 1621, one end of which is connected to the first bending part 120, and the other end of which is used to cooperate with the thermistor 300 to achieve limiting. (As shown in the Z direction) The second limiting part 162 includes a third plate 1621, one end of which is connected to the first bending part 120, and the other end of which is used to cooperate with the thermistor 300 to achieve limiting.

[0133] In other words, Figure 5 In the embodiment shown, the thermistor 300 further includes a second limiting bump 302. Figure 10Only one second limiting protrusion 302 is shown, but the number of second limiting protrusions 302 is not specifically limited in this embodiment. For example, one, three, four or other numbers of second limiting protrusions 302 may also be provided.

[0134] like Figure 5 and Figure 10 As shown, it can be understood that the second limiting bump 302 of the thermistor 300 and the aforementioned first limiting bump 301 are located along the second direction of the thermistor 300 (e.g., Figure 10 and Figure 10 The opposite sides of the X direction shown in the figure.

[0135] like Figure 10 As shown, one end 16211 of the third plate 1621 abuts against the sidewall 3021 of the second limiting protrusion 302, thereby limiting the thermistor 300 in the second direction (e.g., Figure 10 The X direction shown in the figure) and the first direction (as ... Figure 10 The displacement of the thermistor 300 in the Z direction (as shown in the diagram) is such that the second limiting portion 162 and the second limiting protrusion 302 of the thermistor 300 abut against each other, thereby limiting the displacement of the thermistor 300 in the first direction (as shown in the diagram). Figure 11 The Z direction shown in the figure) and the third direction (such as Figure 11 The displacement in the Y direction is shown in the figure.

[0136] like Figure 11 As shown, Figure 11 Two second limiting portions 162 are shown, the two second limiting portions 162 are along the first direction (e.g. Figure 10 The second limiting part 162 is arranged at intervals in the Z direction shown in the figure, and each second limiting part 162 includes the third plate 1621 described above.

[0137] At the same time, Figure 10 In the illustrated embodiment, the thermistor 300 includes two of the aforementioned second limiting protrusions 302. It can be seen that one end 16211 of each third plate 1621 abuts against the sidewall 3021 of the corresponding second limiting protrusion 302, thereby strengthening the third plate 1621 in the second direction (e.g., ​ The X direction shown in the figure) and the first direction (as ... ​ The limit for the thermistor 300 is shown in the Z direction.

[0138] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A spring clip for a temperature sensor, characterized by, The utility model relates to a temperature sensor fixing device for copper bar, comprising: a main body part extending along a first direction, the main body part having a first side and a second side located on opposite sides along a second direction; a first bending part provided on the first side of the main body part, the first bending part and the main body part defining a connected opening and a receiving space, the receiving space being used for accommodating a temperature sensor, the opening being located on one side of the receiving space along the first direction and being used for allowing the temperature sensor to pass in; a first limiting part provided on one side of the first bending part along the first direction close to the opening, the first limiting part being used for limiting the first bending part along the second direction and a third direction; a second bending part provided on the second side of the main body part, the second bending part being used for clamping a flat section of a copper bar, and along the first direction, the length of the second bending part accounts for at least two fifths of the length of the flat section; the main body part is made of a heat-conducting material, and the second bending part is made of an elastic material; the first direction, the second direction and the third direction are perpendicular to each other.

2. The spring clip for a temperature sensor according to claim 1, characterized by The second bending part comprises two clamping plates, the two clamping plates being oppositely and spacedly arranged along the third direction and defining a clamping space with the main body part, the clamping space being used for clamping the flat section of the copper bar.

3. The spring clip for a temperature sensor according to claim 2, characterized by Each of the clamping plates comprises a first part and a second part connected to each other, the first part comprising a first surface and a second surface oppositely arranged along the third direction, and the second part comprising a third surface and a fourth surface oppositely arranged along the second direction; wherein along the second direction, one end of the first surface is connected to the second side, the other end of the first surface is connected to the third surface, one end of the second surface is connected to the second side, and the other end of the second surface is connected to the fourth surface; the first surface is used for abutting the flat section along the third direction, and the third surface is used for abutting the flat section along the second direction.

4. The spring clip for a temperature sensor according to claim 1, characterized by The first limiting part comprises two limiting plates, the two limiting plates being oppositely and spacedly arranged along the third direction and being used for pressing the first bending part along the second direction and the third direction.

5. The spring clip for a temperature sensor according to claim 4, characterized by Each of the limiting plates comprises a third part and a fourth part connected to each other, the third part comprising a fifth surface and a sixth surface oppositely arranged along the third direction, and the fourth part comprising a seventh surface and an eighth surface oppositely arranged along the second direction; wherein along the second direction, one end of the fifth surface is connected to the first side, the other end of the fifth surface is connected to the seventh surface, one end of the sixth surface is connected to the first side, and the other end of the sixth surface is connected to the eighth surface; the fifth surface abuts the first bending part along the third direction, and the seventh surface abuts the first bending part along the second direction.

6. The spring clip for a temperature sensor of claim 1, wherein Further comprising: a second limiting part provided on one side of the first bending part away from the opening, the second limiting part being used for limiting the first bending part along the second direction and the third direction.

7. The spring clip for a temperature sensor of claim 1, wherein The second side of the main body part is provided with a limiting opening penetrating the main body part along the second direction, the limiting opening being used to engage with the temperature sensor in a concave-convex manner to limit displacement of the temperature sensor along the first direction.

8. The spring clip for a temperature sensor of claim 1, wherein Further comprising: at least one third limiting member, one end of the at least one third limiting member being connected with the first bent part, the other end of the at least one third limiting member being used to abut against the temperature sensor to limit displacement of the temperature sensor along the first direction and / or the second direction.

9. A stator characterized by, Comprising: a winding; a copper bar comprising a bent segment and a straight segment connected with each other, one end of the bent segment being used to connect with the winding, the other end of the bent segment being connected with the straight segment, the straight segment extending along the first direction, both sides of the straight segment along the third direction being respectively provided with a groove; The temperature sensor spring clip according to any one of claims 1 to 8; wherein, one part of the second bent part of the temperature sensor spring clip is accommodated in the groove and fits the groove along the third direction, the other part of the second bent part fits the straight segment along the second direction; the straight segment has a first length along the first direction, the second bent part of the temperature sensor spring clip has a second length, the second length accounting for at least two-fifths of the first length.

10. The stator of claim 9, wherein The groove on each side comprises a bottom wall extending along the first direction, a first limiting wall and a second limiting wall oppositely arranged and respectively connected with both ends of the bottom wall, wherein, along the third direction, the one part of the second bent part fits the bottom wall; along the first direction, the first limiting wall and the second limiting wall are respectively used for the one part of the second bent part to abut against, to limit the second bent part in the first direction.

11. The stator of claim 10, wherein One end of the straight segment away from the bent segment is provided with a guide surface, the guide surface being connected with the first limiting wall, the extension direction of the guide surface intersecting the first direction.

12. An electric machine characterized by The temperature sensor and the stator according to any one of claims 9 to 11, the temperature sensor being accommodated in the accommodating space of the stator.

13. The electric machine of claim 12, wherein, The temperature sensor is provided with a first limiting protrusion, the first limiting protrusion engaging with the limiting opening of the main body part in a concave-convex manner.

14. The electric machine of claim 13, wherein, The temperature sensor is provided with at least one second limiting protrusion, the at least one second limiting protrusion being located on opposite sides of the temperature sensor along the second direction from the first limiting protrusion, the at least one second limiting protrusion abutting against the at least one third limiting member of the temperature sensor spring clip.

Images