Fixing structure, motor and automobile

Abstract

The utility model provides a fixed structure, motor and automobile, relates to automobile part technical field, the fixed structure includes fixed support and jack catch subassembly, the fixed support is equipped with the through copper bar fixed groove, fixed support is equipped with at least two jack catch subassembly outside copper bar fixed groove, and the jack catch subassembly is equipped with the copper bar fixed groove. And the clamping jaw assemblies are respectively used for clamping and fixing different thermistors. According to the fixing structure disclosed by the utility model, the fixing bracket can be matched with the copper bar through the copper bar fixing groove, so that the fixing bracket can be fixed on the copper bar, and the plurality of clamping jaw assemblies on the fixing bracket can be respectively used for fixing different thermistors, so that the plurality of thermistors can be fixedly mounted on the copper bar only by one fixing structure; the copper bar is small in occupied space, simple in installation process and high in installation efficiency, a plurality of buckle arrangement point positions do not need to be machined on the copper bar, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, and in particular to a fixing structure, a motor and an automobile. Background Art

[0002] With the rapid development of the new energy industry, the size of electric drive systems is getting smaller and smaller, and the integration and power density are getting higher and higher. The difficulty of thermal management is also increasing. Thermistors are key components for monitoring motor temperature. They are generally fixed to the copper busbars of the motor windings through sheet metal clips.

[0003] In order to avoid the inability to monitor the motor temperature due to accidental damage to the thermistor, it is generally necessary to install an extra thermistor as a backup. At present, two clip arrangement points are processed on the copper busbar, and each clip arrangement point is connected to a thermistor through a sheet metal clip. Since multiple sheet metal clips are required to be fixed separately, it not only takes up a large space, but also has a complicated installation process, low installation efficiency and high cost. Utility Model Content

[0004] The utility model aims to solve the technical problems of complicated installation process and low efficiency of multiple thermistors on a copper busbar.

[0005] In a first aspect, the utility model provides a fixing structure, including a fixing bracket and a claw assembly, wherein the fixing bracket is provided with a through copper busbar fixing groove, and the fixing bracket is provided with at least two claw assemblies outside the copper busbar fixing groove, and each claw assembly is used to clamp and fix a different thermistor.

[0006] According to the fixing structure of the utility model, the copper bar fixing groove of the fixing bracket can match the shape of the copper bar, and the fixing bracket can be installed in cooperation with the copper bar by utilizing the copper bar fixing groove to realize fixing the fixing bracket on the copper bar, and the multiple claw assemblies on the fixing bracket can be used to fix different thermistors respectively, so that the fixed installation of multiple thermistors on the copper bar only requires one fixing structure, occupies a small space, has a simple installation process, has a high installation efficiency, and does not need to process multiple buckle arrangement points on the copper bar, thereby reducing the manufacturing cost.

[0007] Optionally, the fixing bracket includes two first fixing plates and one second fixing plate, the two first fixing plates are arranged opposite to each other, and one end of the two first fixing plates is respectively connected to the second fixing plate to enclose and form the copper busbar fixing groove.

[0008] Optionally, one end of at least one of the first fixing plates away from the second fixing plate is bent toward another first fixing plate to form an anti-slip shoulder.

[0009] Optionally, the distance between the two first fixing plates gradually decreases from one end close to the second fixing plate to a direction away from the second fixing plate, and when the copper busbar is inserted from the notch of the copper busbar fixing groove, at least one of the two first fixing plates is used to undergo extrusion deformation.

[0010] Optionally, two of the clamping jaw assemblies are provided, and the two clamping jaw assemblies are respectively connected to the two first fixing plates.

[0011] Optionally, the claw assembly includes a plurality of claws, each of which is used to be arranged at intervals along the through direction of the copper bar fixing slot;

[0012] Alternatively, the claw assembly includes two claws, and the first fixing plate is provided with extension plates at both ends along the through direction of the copper busbar fixing slot, and the extension plates are bent at both ends perpendicular to the through direction of the copper busbar fixing slot to form the claws.

[0013] Optionally, the fixing bracket and the claw assembly are integrally formed.

[0014] In the second aspect, the utility model provides a motor, comprising a copper bar, a thermistor and the above-mentioned fixing structure, wherein the copper bar is installed in cooperation with the copper bar fixing groove of the fixing bracket, and the thermistor is installed in cooperation with the claw assembly. The advantages of the motor compared with the prior art are the same as those of the above-mentioned fixing structure, and will not be repeated.

[0015] Optionally, the copper bar is provided with two positioning bosses at intervals along the extension direction, a portion of the copper bar between the two positioning bosses is inserted into the copper bar fixing groove, and the two positioning bosses are respectively in contact with the fixing bracket.

[0016] In a third aspect, the utility model provides a car, comprising the above-mentioned motor. The advantages of the car compared with the prior art are the same as those of the above-mentioned motor, and will not be described again. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the fixing structure of an embodiment of the utility model from a first viewing angle;

[0018] Figure 2 It is a structural schematic diagram of the second viewing angle of the fixing structure of an embodiment of the utility model;

[0019] Figure 3 It is a partial structural schematic diagram of the copper busbar of an embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the assembly of the fixing structure, copper busbar and thermistor of the embodiment of the utility model from the first perspective;

[0021] Figure 5 It is a schematic assembly diagram of the fixing structure, copper busbar and thermistor of an embodiment of the utility model from a second viewing angle.

[0022] Description of reference numerals:

[0023] 1. Fixed bracket; 11. First fixed plate; 111. Anti-slip shoulder; 12. Second fixed plate; 2. Claw assembly; 21. Claw; 3. Copper busbar; 31. Positioning boss; 4. Thermistor. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "matched" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In addition, it should be noted that in the description of the present invention, it should be noted that the terminology nouns in the various embodiments, such as "upper", "lower", "front", "back" and other words indicating directions, are only for simplifying the description of the positional relationship based on the drawings in the specification, and do not mean that the components and devices referred to must be operated in accordance with the specific directions and specified operations and methods and structures in the specification. Such directional nouns do not constitute a limitation on the present invention.

[0027] In this article, an XYZ coordinate system is established, in which the positive direction of the X axis represents the front, the reverse direction of the X axis represents the back, the positive direction of the Y axis represents the left, the reverse direction of the Y axis represents the right, the positive direction of the Z axis represents the top, and the reverse direction of the Z axis represents the bottom. It should also be noted that the aforementioned X axis, Y axis, and Z axis are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0028] like Figure 1-2 As shown in 4-5, a fixing structure of an embodiment of the utility model includes a fixing bracket 1 and a claw assembly 2, the fixing bracket 1 is provided with a through copper busbar fixing groove, the fixing bracket 1 is provided with at least two claw assemblies 2 outside the copper busbar fixing groove, and each claw assembly 2 is used to clamp and fix different thermistors 4.

[0029] Specifically, the fixing bracket 1 is provided with a copper bar fixing groove extending along the direction indicated by the Z axis, the copper bar fixing groove is flat and matches the shape of the copper bar 3, the copper bar fixing groove has a notch facing the positive direction of the Y axis, the copper bar 3 is extended along the direction indicated by the Z axis, and the copper bar 3 is inserted into the copper bar fixing groove from the notch along the Y direction. A plurality of claw assemblies 2 can be fixedly arranged on the surface of the fixing bracket 1, and the thermistor 4 can be arranged along the extension direction parallel to the copper bar 3.

[0030] In this embodiment, the fixing bracket 1 can be installed in cooperation with the copper busbar 3 by utilizing the copper busbar fixing groove to realize fixing the fixing bracket 1 on the copper busbar 3. The installation method is simple. The multiple claw assemblies 2 on the fixing bracket 1 can be used to fix different thermistors 4 respectively. In this way, only one fixing structure is needed to fix multiple thermistors 4 on the copper busbar 3, which occupies a small space, has a simple installation process, and has high installation efficiency. There is no need to process multiple buckle arrangement points on the copper busbar 3, thereby reducing manufacturing costs.

[0031] like Figure 1 As shown, optionally, the fixing bracket 1 includes two first fixing plates 11 and a second fixing plate 12, the two first fixing plates 11 are arranged opposite to each other, and one end of the two first fixing plates 11 is respectively connected to the second fixing plate 12 to enclose and form the copper busbar fixing groove.

[0032] Specifically, the two first fixing plates 11 are spaced apart and arranged opposite to each other along the direction indicated by the X-axis, the second fixing plate 12 is arranged along the XZ plane, the right ends of the two first fixing plates 11 are connected by the second fixing plate 12, and the two first fixing plates 11 and the second fixing plate 12 are enclosed to form a U-shaped copper busbar fixing groove with the notch facing the positive direction of the Y-axis.

[0033] When in use, the fixing bracket 1 is moved closer to the copper busbar 3 so that the copper busbar 3 is inserted from the notch of the copper busbar fixing groove, thereby achieving fixed installation of the fixing structure on the copper busbar 3 .

[0034] like Figure 1 As shown, optionally, one end of at least one of the first fixing plates 11 away from the second fixing plate 12 is bent toward another first fixing plate 11 to form an anti-slip shoulder 111 .

[0035] Specifically, the left ends of the two first fixing plates 11 are bent 180° toward one side of the groove to respectively form anti-slip shoulders 111. The anti-slip shoulders 111 are formed at the notch of the copper bar fixing groove. When the copper bar 3 is inserted into the copper bar fixing groove from the notch, the anti-slip shoulders 111 are squeezed toward both sides. When one end of the copper bar 3 is inserted to abut against the bottom of the copper bar fixing groove, the other end of the copper bar 3 abuts against the anti-slip shoulders 111.

[0036] In this embodiment, by providing two oppositely disposed anti-slip shoulders 111 at the notch of the copper busbar fixing groove, the fixing structure can be restricted from being detached from the copper busbar 3 along the direction indicated by the Y axis, thereby preventing the fixing structure from being loosened.

[0037] Of course, in some other embodiments, the anti-slip shoulder 111 may be provided on only one of the first fixing plates 11 .

[0038] like Figure 1 As shown, optionally, the distance between the two first fixing plates 11 gradually decreases from one end close to the second fixing plate 12 to a direction away from the second fixing plate 12, and when the copper busbar 3 is inserted from the notch of the copper busbar fixing groove, at least one of the two first fixing plates 11 is used to undergo extrusion deformation.

[0039] Specifically, one of the first fixing plates 11 can be set along the YZ plane, and the other first fixing plate 11 can be set at a certain angle relative to the YZ plane, that is, the distances between the two ends of the two first fixing plates 11 are not equal. Furthermore, the distance between the ends of the two first fixing plates 11 close to the second fixing plate 12 is larger, and the distance between the ends of the two first fixing plates 11 facing the slot is smaller.

[0040] In this embodiment, the two first fixing plates 11 are both made of elastic material and can undergo extrusion deformation. When the copper busbar 3 is inserted into the copper busbar fixing groove from the notch, the two first fixing plates 11 are squeezed outward, so that the two first fixing plates 11 have a tendency to move away from each other. After the copper busbar 3 is inserted into place, the two first fixing plates 11 have a tendency to recover the deformation and move closer to each other, so as to clamp the copper busbar 3 between the two first fixing plates 11.

[0041] In some other embodiments, only one of the first fixing plates 11 may be made of elastic material and may be squeezed and deformed, while the other first fixing plate 11 remains stationary.

[0042] like Figure 1-2 As shown in Figures 4-5, optionally, two claw assemblies 2 are provided, and the two claw assemblies 2 are respectively connected to the two first fixing plates 11.

[0043] Specifically, the claw assemblies 2 grasp centripetally, the grasping directions of the two claw assemblies 2 are opposite, the dimensions of the two first fixed plates 11 and the one second fixed plate 12 along the direction indicated by the Z axis, that is, the dimensions in the height direction are the same, the width dimensions of the two first fixed plates 11 are larger, and the width dimension of the second fixed plate 12 is smaller, and, after the copper busbar 3 is inserted into the copper busbar fixing groove, the two first fixed plates 11 are respectively fitted with the two side surfaces of the copper busbar 3. Therefore, the claw assemblies 2 are respectively arranged on the two first fixed plates 11, which not only makes full use of the space of the first fixed plates 11, but also facilitates the thermistor 4 clamped by the claw assembly 2 to fit with the two side surfaces of the copper busbar 3, thereby improving the detection accuracy.

[0044] In some embodiments, the claw assembly 2 may also be provided on the second fixing plate 12 as required.

[0045] like Figure 2 , 5 As shown, optionally, the claw assembly 2 includes a plurality of claws 21, each of which is used to be arranged at intervals along the through direction of the copper bar fixing groove. The length direction of the thermistor 4 is consistent with the extension direction of the copper bar 3, both along the direction shown by the Z axis, and three or more claws 21 can be arranged at intervals along the direction shown by the Z axis on each first fixing plate 11. Multiple claws 21 on the same first fixing plate 11 are used to fix the same thermistor 4. The thermistor 4 is fixed at multiple points, and the stability is higher.

[0046] Optionally, the claw assembly 2 includes two claws 21, and the first fixing plate 11 is provided with extension plates at both ends along the through direction of the copper busbar fixing slot, and the extension plates are bent at both ends perpendicular to the through direction of the copper busbar fixing slot to form the claws 21.

[0047] Specifically, the middle parts of the two ends of the first fixed plate 11 along the direction indicated by the Z axis are respectively extended in the direction indicated by the Z axis to form an extension plate, and the two ends of the extension plate along the direction indicated by the Y axis are bent toward the outside of the copper busbar fixing groove to form a claw 21, and the two thermistors 4 can be respectively attached to the opposite sides of the two first fixed plates 11. For example, only one sheet metal can be used to prepare the fixed bracket 1 and the claw assembly 2 through cutting and bending processes, which is simple and low in cost; and, compared with the method of setting the claw on the outer surface of the first fixed plate 11, the unbent straight part of the claw 21 (i.e., the unbent part of the extension plate) in this embodiment is flush with the first fixed plate 11, which can make the thermistor 4 clamped by the claw 21 closer to the copper busbar 3, thereby improving the detection sensitivity.

[0048] Optionally, the fixing bracket 1 and the claw assembly 2 are integrally formed. For example, they can be made of a sheet metal, or can be integrally formed by casting.

[0049] In this embodiment, the fixing bracket 1 and the claw assembly 2 are integrally formed, which can improve the structural strength of the entire fixing structure.

[0050] Another embodiment of the utility model provides a motor, comprising a copper bar 3, a thermistor 4 and the above-mentioned fixing structure, wherein the copper bar 3 is installed in cooperation with the copper bar fixing groove of the fixing bracket 1, and the thermistor 4 is installed in cooperation with the claw assembly 2. The advantages of the motor compared with the prior art are the same as those of the above-mentioned fixing structure, and will not be repeated.

[0051] like Figure 3 , 5 As shown, optionally, the copper busbar 3 is provided with two positioning bosses 31 at intervals along the extension direction, the copper busbar 3 is inserted into the copper busbar fixing groove at a portion between the two positioning bosses 31 , and the two positioning bosses 31 are respectively in contact with the fixing bracket 1 .

[0052] In this embodiment, an annular groove may be provided on the circumferential side wall of the copper busbar 3, and positioning bosses 31 are respectively formed on the axial sides of the annular groove of the copper busbar 3. When the copper busbar 3 is inserted into the copper busbar fixing groove, the upper and lower end surfaces of each fixing plate are respectively abutted against the upper and lower positioning bosses 31 to limit the fixing bracket 1 from moving up and down along the copper busbar 3.

[0053] Another embodiment of the present invention provides a car, comprising the above motor. The advantages of the car compared to the prior art are the same as those of the above motor, and will not be described again.

[0054] Although the utility model is disclosed as above, the protection scope of the utility model is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A fixing structure, characterized in that: The invention comprises a fixing bracket (1) and a clamping claw assembly (2), wherein the fixing bracket (1) is provided with a through copper bar fixing groove, and the fixing bracket (1) is provided with at least two clamping claw assemblies (2) outside the copper bar fixing groove, and each clamping claw assembly (2) is used to clamp and fix a different thermistor (4).

2. The fixing structure according to claim 1, characterized in that: The fixing bracket (1) comprises two first fixing plates (11) and a second fixing plate (12), the two first fixing plates (11) are arranged opposite to each other, and one end of the two first fixing plates (11) is respectively connected to the second fixing plate (12) to enclose and form the copper busbar fixing groove.

3. The fixing structure according to claim 2, characterized in that: One end of at least one of the first fixing plates (11) away from the second fixing plate (12) is bent toward a direction close to another first fixing plate (11) to form an anti-slip shoulder (111).

4. The fixing structure according to claim 2, characterized in that: The distance between the two first fixing plates (11) gradually decreases from one end close to the second fixing plate (12) to a direction away from the second fixing plate (12), and when the copper busbar (3) is inserted from the notch of the copper busbar fixing groove, at least one of the two first fixing plates (11) is used to undergo extrusion deformation.

5. The fixing structure according to claim 2, characterized in that: Two of the clamping claw assemblies (2) are provided, and the two clamping claw assemblies (2) are respectively connected to the two first fixing plates (11).

6. The fixing structure according to claim 5, characterized in that: The clamping claw assembly (2) comprises a plurality of clamping claws (21), each of the clamping claws (21) being arranged at intervals along a through direction of the copper bar fixing groove; Alternatively, the claw assembly (2) comprises two claws (21), and the first fixing plate (11) is provided with extension plates at both ends along the through direction of the copper busbar fixing slot, and the extension plates are bent along both ends perpendicular to the through direction of the copper busbar fixing slot to form the claws (21).

7. The fixing structure according to claim 1, characterized in that: The fixing bracket (1) and the clamping claw assembly (2) are integrally formed.

8. A motor, characterized in that: It comprises a copper busbar (3), a thermistor (4) and a fixing structure as claimed in any one of claims 1 to 7, wherein the copper busbar (3) is installed in cooperation with a copper busbar fixing groove of a fixing bracket (1), and the thermistor (4) is installed in cooperation with a claw assembly (2).

9. The motor according to claim 8, characterized in that The copper busbar (3) is provided with two positioning bosses (31) at intervals along the extension direction; the portion of the copper busbar (3) between the two positioning bosses (31) is inserted into the copper busbar fixing groove, and the two positioning bosses (31) are respectively in contact with the fixing bracket (1).

10. An automobile, characterized in that: Comprising a motor as described in any one of claims 8-9.

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