Connector, motor controller and automobile
By setting a groove-like structure on the conductive terminal joint section and integrally molding it with the connector base, the problems of complicated connector manufacturing process and high cost are solved, and higher joint strength and sealing performance are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-03-24
AI Technical Summary
The manufacturing process of existing connectors is complicated, has a long manufacturing cycle, and is costly. This is mainly due to the increased complexity of injection molds and the increase of process steps caused by reserving glue holes around the conductive terminals for sealing.
A groove-like structure is set on the joint section of the conductive terminal, and the connector and the conductive terminal are integrally formed. The groove-like structure design improves the joint strength and sealing performance, and reduces the dependence on the connector.
It improves the bonding strength and sealing performance between the conductive terminals and the connector, simplifies the manufacturing process, and reduces manufacturing costs.
Smart Images
Figure CN224036675U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to power transmission and distribution technical field, especially a kind of connector, motor controller and automobile. BACKGROUND
[0002] The conductive terminal plays the role of gathering, distributing and transmitting electric energy. The connector includes a conductive terminal and a plastic support. The conductive terminal is a copper bar or an aluminum bar, which realizes high-voltage transmission function. The plastic support is made of insulating material, which can prevent short circuit between the conductive terminal and other components or circuits, and mechanically protect the conductive terminal. In the prior art, to prevent moisture, dust and other pollutants from entering from one end of the conductive terminal to the other end, a glue dispensing hole is reserved on the plastic formed around the conductive terminal. The conductive terminal and the plastic support are sealed by glue dispensing. This arrangement not only increases the complexity of the injection mold of the plastic support, but also increases the manufacturing process steps due to the use of glue dispensing, resulting in increased manufacturing cycle and cost of the connector. SUMMARY
[0003] The main purpose of the utility model is to provide a connector, motor controller and automobile, which aims to solve the problem of complicated manufacturing process steps, long manufacturing cycle and high manufacturing cost of the existing connector.
[0004] To achieve the above-mentioned purpose, the utility model provides a connector, characterized by comprising:
[0005] A conductive terminal having a combination section, the combination section having a plurality of outer surfaces, at least one groove-shaped structure being provided on at least one outer surface of the combination section; and
[0006] A connecting seat, which is sleeved on the combination section and fills the groove-shaped structure, and is integrally formed with the conductive terminal.
[0007] In an embodiment, the number of groove-shaped structures is multiple, and the multiple groove-shaped structures are arranged in intervals along the length direction and / or width direction of the combination section.
[0008] In an embodiment, the groove-shaped structure is provided on at least two outer surfaces of the combination section, and the groove-shaped structures on each outer surface are arranged in intervals.
[0009] In an embodiment, the cross section of the groove-shaped structure along the depth direction includes two opposite side walls, at least part of the two side walls is symmetrically arranged along the center line of the groove-shaped structure, and the center line is the line connecting the center point of the groove opening and the center point of the groove bottom of the groove-shaped structure.
[0010] In an embodiment, at least part of the groove walls of the groove structure are arranged obliquely with respect to the depth direction of the groove structure.
[0011] In an embodiment, the cross section of the groove structure along the depth direction comprises two opposite side walls, at least part of at least one of the two side walls is arranged obliquely with respect to the depth direction of the groove structure.
[0012] In an embodiment, the groove width of the groove structure is arranged tapering and / or expanding along the depth direction of the groove structure.
[0013] In an embodiment, the groove structure is a groove, the number of the grooves is multiple, the central line formed by the connection line of the center point of the groove opening and the center point of the groove bottom of at least part of the grooves forms an angle a with the surface on which the groove is formed, and the angle a is 30-60 degrees.
[0014] In an embodiment, the multiple grooves are arranged in a linear groove group along the width direction of the bonding section, and the linear groove group is arranged in multiple rows, and the multiple rows of linear groove groups are arranged along the length direction of the bonding section.
[0015] In an embodiment, the length of the bonding section along the length direction is 5-10 mm.
[0016] And / or, the distance between adjacent grooves is 0.25-0.5 mm.
[0017] And / or, the width of each groove is 0.3-0.5 mm.
[0018] And / or, the groove depth of each groove is 0.3-0.5 mm.
[0019] In an embodiment, the groove walls of each groove in each linear groove group are arranged in the same oblique direction.
[0020] The groove walls of each groove in adjacent two rows of linear groove groups are arranged in opposite oblique directions.
[0021] In an embodiment, the groove structure is a groove slot, and the groove slot is arranged in multiple rows along the length direction of the bonding section.
[0022] And / or, the length of the bonding section along the length direction is not less than 5 mm.
[0023] And / or, the distance between adjacent groove slots is not greater than 0.5 mm.
[0024] And / or, the length of each groove slot along the length direction of the bonding section is 0.05-0.1 mm.
[0025] And / or, each of the groove slot depth is 0.5-0.8mm.
[0026] The utility model discloses still propose a kind of motor controller, including the connector as described in any one of the above embodiment.
[0027] The utility model discloses still propose a kind of automobile, including the motor controller as described above.
[0028] The utility model discloses a technical scheme, at least one outer surface of the combination section of the conductive terminal is provided with at least one groove structure, when the connecting seat is integrally injection molded with the conductive terminal, part of the connecting seat can be filled into the groove structure, so that the part of the connecting seat filled into the groove structure is combined with the conductive terminal more firmly, thereby facilitating to improve the combination strength and the connecting tightness of the conductive terminal and the connecting seat, and the sealing property between the two is reliably improved. BRIEF DESCRIPTION OF DRAWINGS
[0029] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the structure shown in these drawings without creative labor.
[0030] Figure 1 The structure schematic view of an embodiment of the connector provided by the utility model is shown in the figure.
[0031] Figure 2 The structure schematic view of the combination section in the connector is shown in the figure. Figure 1
[0032] The structure schematic view of the combination section in the connector is shown in the figure. Figure 3 Figure 2 The structure schematic view of the combination section in the connector is shown in the figure.
[0033] Figure 4 The structure schematic view of the groove along the Y direction section in the connector is shown in the figure. Figure 3
[0034] The structure schematic view of the groove along the Y direction section in the connector is shown in the figure. Figure 5 Figure 3 The structure schematic view of the groove along the Y direction section in the connector is shown in the figure.
[0035] Figure 6 The structure schematic view of another embodiment of the combination section in the connector provided by the utility model is shown in the figure.
[0036] Figure 7 The structure schematic view of the groove along the X direction section in the connector is shown in the figure. Figure 6
[0037] Brief Description of Drawings
[0038] 1. Connector; 10. Conductive terminal; 11. Bonding section; 111. Groove; 111a. Notch; 111b. Groove bottom; 111c. Center line; 1111. Linear groove group; 112. Trench slit; 20. Connection seat.
[0039] The realization, functional features and advantages of the utility model will be further described in combination with embodiments and with reference to the drawings. DETAILED DESCRIPTION
[0040] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0041] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.
[0042] In addition, if the embodiments of the utility model involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.
[0043] In the prior art, in order to prevent moisture, dust and other pollutants from entering from one end of the conductive terminal to the other end, a glue hole is reserved on the plastic formed on the periphery of the conductive terminal, and the sealing effect of the conductive terminal and the plastic support is realized by gluing. Such a setting not only increases the complexity of the injection mold of the plastic support, but also increases the manufacturing process steps due to the use of gluing, thereby increasing the manufacturing cycle and cost of the connector.
[0044] The reason is that the sealing treatment of the plastic support and the conductive terminal in the above manner will make the injection mold structure of the molded plastic support more complex because the glue dispensing hole needs to be formed, and the process will be more complex because the glue dispensing process is increased, and the manufacturing cost of the connector will be increased because glue needs to be used.
[0045] To solve the above technical problems, the utility model provides a kind of connector 1.
[0046] Please refer to Figure 1 In an embodiment of the utility model, the connector 1 includes a conductive terminal 10 and a connecting seat 20.
[0047] The connector 1 is a key device for reliable conduction, which can be used in motor controllers, power distribution cabinets, automotive electronic systems, industrial robots or automation equipment, etc., without too much limitation.
[0048] In the embodiment, the connector 1 includes a conductive terminal 10 and a connecting seat 20, wherein the material of the conductive terminal 10 can be copper, aluminum, silver or alloy with excellent conduction effect; the connecting seat 20 is made of insulating material, and at least part of the conductive terminal 10 is embedded in the connecting seat 20, so that the conductive terminal 10 can not only prevent short circuit with other components or circuits, but also provide mechanical protection for the conductive terminal 10. Among them, the connecting seat 20 is generally formed around the conductive terminal 10 by injection molding process to enclose the conductive terminal 10.
[0049] In the embodiment, the conductive terminal 10 has a combination section 11, which has a plurality of outer surfaces, and at least one groove structure is provided on at least one outer surface of the combination section 11; the connecting seat 20 is sleeved on the combination section 11 and fills the groove structure, and the connecting seat 20 is integrally formed with the conductive terminal 10.
[0050] As Figure 3 shown, in the embodiment, the conductive terminal 10 has a combination section 11, which has a plurality of outer surfaces, and at least one groove structure is provided on at least one outer surface of the combination section 11; the connecting seat 20 is sleeved on the combination section 11 and fills the groove structure, and the connecting seat 20 is integrally formed with the conductive terminal 10.
[0051] At least one groove structure is arranged on at least one outer surface of the connecting section 11. Specifically, the groove structure can be one or more. When the groove structure is one, the groove structure can be arranged in a long strip shape or a long arc shape, and the number of groove structures is not limited.
[0052] The groove structure can be formed by laser etching on the connecting section 11 of the conductive terminal 10 by a laser device, or can be formed by chemical etching, or can be formed by mechanical processing, and the number of groove structures is not limited.
[0053] First embodiment
[0054] For ease of explanation, the groove structure in the following embodiments is taken as an example of the groove 111.
[0055] As shown in Figure 4 and Figure 5 , the groove 111 has a groove wall in the depth direction thereof. Since the connecting seat 20 is formed on the periphery of the conductive terminal 10 by injection molding, and part of the connecting seat 20 is filled into the groove 111 during injection molding, in order to better combine the connecting seat 20 with the connecting section 11 of the conductive terminal 10, and to achieve the sealing effect, so as to prevent water vapor, dust or other pollutants from flowing through the gap between the conductive terminal 10 and the connecting seat 20 from one end of the conductive terminal 10 to the other end of the conductive terminal 10, affecting the connection effect of the conductive terminal 10 and other devices, and ensuring the reliability of the electrical system; in this embodiment, at least part of the groove wall of the groove 111 is arranged obliquely, and the oblique groove wall is referred to the depth direction of the groove 111.
[0056] The specific shape of the groove wall of the groove 111 can be that all the groove walls of the groove 111 are arranged obliquely. The direction of the oblique groove wall can be any direction towards the periphery of the conductive terminal 10, and the number of groove structures is not limited.
[0057] In an embodiment, as shown in Figure 4 and Figure 5As shown, the cross section of the groove 111 along the depth direction comprises two opposite side walls, at least part of at least one of the two side walls is arranged obliquely relative to the depth direction of the groove 111. In the embodiment, the cross section of the groove 111 formed along the depth direction thereof comprises two opposite side walls, both of which are arranged obliquely relative to the depth direction of the groove 111, wherein the two side walls gradually converge along the depth direction of the groove 111, so that the groove 111 is arranged in a sharp taper shape, thereby making the part of the connecting seat 20 filled into the groove 111 more firmly combined with the conductive terminal 10, and further facilitating to improve the combination strength and connection tightness of the conductive terminal 10 and the connecting seat 20, so as to meet the sealing ability of less than 0.5 cc / min under the condition of 3 bar inflation, and the sealing reliability is improved. Of course, in another embodiment, one of the two side walls can be arranged obliquely relative to the depth direction of the groove 111, and the other side wall can be arranged parallelly relative to the depth direction of the groove 111, or one side wall can be partially arranged obliquely relative to the depth direction of the groove 111, and the other side wall can be arranged parallelly relative to the depth direction of the groove 111, or also partially arranged obliquely relative to the depth direction of the groove 111, through such arrangement, the combination strength of the connecting seat 20 and the conductive terminal 10 can also be strengthened, so that the sealing between the two is improved. In other embodiments, the cross section of the groove 111 can also comprise a bottom wall, and the two side walls are arranged opposite at both ends of the bottom wall, and no more limitation is made in this regard. In other embodiments, at least part of the two side walls is arranged symmetrically along the center line of the groove 111, and the center line is the connecting line between the slot center point and the groove bottom center point of the groove 111. Of course, the two side walls can also be arranged asymmetrically, one of the two side walls can be arranged vertically relative to the depth direction of the groove 111, and the other side wall can be arranged obliquely relative to the depth direction of the groove 111, and no more limitation is made in this regard.
[0058] In an embodiment, the width of the slot 111a of the groove 111 is arranged to be gradually reduced and / or gradually expanded along the depth direction of the groove 111. In the embodiment, the groove 111 has a gradually reduced section, as shown in the figure, and the width of the slot 111a of the groove 111 is gradually reduced along the depth direction of the groove 111. Figure 4 and Figure 5As shown, the tapering section is arranged along the depth direction of the groove 111, and such arrangement can further improve the bonding strength between the connecting seat 20 and the conductive terminal 10. In another embodiment, the groove 111 has a tapering section (not shown in the figure) arranged along the depth direction of the groove 111, and such arrangement can also further improve the bonding strength between the connecting seat 20 and the conductive terminal 10. In other embodiments, the groove 111 has both the tapering section and the tapering section, for example, the groove wall of the groove 111 is arranged in an arc shape, which is a convex arc, and then the tapering section is arranged above the tapering section, so as to form a convex arc-shaped groove wall, or the arc shape is a concave arc, and then the tapering section is arranged above the tapering section, so as to form a concave arc-shaped groove wall. In this regard, no more limitations are made, and the above arrangement can further improve the bonding strength between the connecting seat 20 and the conductive terminal 10.
[0059] In an embodiment, the number of the grooves 111 is multiple, and the center line 111c formed by the center point of the groove opening 111a and the center point of the groove bottom 111b of at least part of the grooves 111 forms an angle α with the surface on which the groove 111 is formed, and the angle α is 30-60 degrees. Figure 4 and Figure 5 As shown, in the present embodiment, the center line 111c formed by the center point of the groove opening 111a and the center point of the groove bottom 111b of the groove 111 forms an angle with the surface of the groove 111, and the angle is not less than 30 degrees and not more than 60 degrees. Such arrangement not only facilitates the processing of the groove 111, but also improves the bonding effect between the connecting seat 20 and the conductive terminal 10 after the connecting seat 20 fills the groove 111, so as to achieve the sealing effect.
[0060] It is worth mentioning that, as shown, Figures 1 to 5 The X direction is the direction from the first end to the second end of the conductive terminal 10, that is, the length direction of the conductive terminal 10, the Y direction is the width direction of the conductive terminal 10, and the Z direction is the thickness direction of the conductive terminal 10, which can also be the depth direction of the groove 111.
[0061] In an embodiment, the plurality of grooves 111 are arranged in a spaced manner along the length direction and the width direction of the bonding section 11. As shown, Figure 3 In the present embodiment, the bonding section 11 is provided with a plurality of grooves 111, and part of the grooves 111 are arranged in a spaced manner along the length direction of the bonding section 11, that is, the length direction of the conductive terminal 10, and part of the grooves 111 are arranged in a structural manner along the width direction of the bonding section 11, that is, the width direction of the conductive terminal 10. Such arrangement can not only further improve the bonding strength between the connecting seat 20 and the conductive terminal 10, but also can less open the groove 111 on the conductive terminal 10, so as to ensure the structural strength of the conductive terminal 10 itself.
[0062] In one embodiment, a plurality of grooves 111 are arranged at intervals along the width direction of the connecting section 11 to form linear groove groups 1111. The linear groove groups 1111 are arranged in multiple rows, and these multiple rows are arranged at intervals along the length direction of the connecting section 11. For example... Figure 3 As shown, in this embodiment, a portion of the plurality of grooves 111 are spaced apart along the width direction of the connecting section 11 to form linear groove groups 1111. The linear groove groups 1111 are formed in multiple rows on the connecting section 11, wherein adjacent rows of linear groove groups 1111 are also arranged at intervals. This arrangement not only strengthens the connection strength between the connector 20 and the conductive terminal 10, but also ensures the structural strength of the conductive terminal 10 itself.
[0063] In one embodiment, the length of the connecting segment 11 along the length direction is 5 to 10 mm;
[0064] And / or, the distance between adjacent grooves 111 is 0.25 to 0.5 mm;
[0065] And / or, the width of each of the grooves 111 is 0.3 to 0.5 mm;
[0066] And / or, the groove depth of each of the grooves 111 is 0.3 to 0.5 mm. For example... Figures 3 to 5 As shown, in this embodiment, the connecting segment 11 is marked as w1 along its length, where the value of w1 ranges from 5 to 10 mm, and can be either 5 mm or 8 mm; no further limitation is made on this. The distance between adjacent grooves 111 along the width direction is marked as k, and the distance between adjacent grooves 111 along the length direction is marked as l1, where the value of k ranges from 0.3 to 0.5 mm, and the value of l1 ranges from 0.25 to 0.5 mm. The groove depth of the groove 111 is marked as h1, and the value of h1 ranges from 0.3 to 0.5 mm.
[0067] In one embodiment, the groove walls of each groove 111 within each linear groove group 1111 have the same inclination direction; the groove walls of each groove 111 within adjacent rows of linear groove groups 1111 have opposite inclination directions. For example... Figure 4 and Figure 5 As shown, in this embodiment, the groove wall of each groove 111 in each row of linear groove groups 1111 is inclined in the same direction. The groove wall of each groove 111 in the adjacent row of linear groove groups 1111 is also inclined, but the groove walls of the grooves 111 in the two adjacent rows are inclined in opposite directions. This arrangement can further enhance the bonding strength between the connector 20 and the conductive terminal 10 after filling the grooves 111 in the multiple rows of grouting grooves, thereby improving the sealing effect.
[0068] Second Embodiment
[0069] In this embodiment, the groove-shaped structure is a groove 112, and multiple grooves 112 are provided, which are arranged at intervals along the length direction of the connecting segment 11; and / or, the length of the connecting segment 11 along the length direction is not less than 5 mm; and / or, the distance between adjacent grooves 112 is not greater than 0.5 mm; and / or, the length of each groove 112 along the length direction of the connecting segment 11 is 0.05 to 0.1 mm; and / or, the depth of each groove 112 is 0.5 to 0.8 mm. Figure 6 and Figure 7 As shown, exemplarily, in this embodiment, the groove-like structure is a groove 112, which extends along the width direction of the connecting section 11. In this embodiment, multiple grooves 112 are provided, and the multiple grooves 112 are arranged at intervals along the length direction of the connecting section 11. In this embodiment, at least a portion of the two side walls of the groove 112 along the depth direction are inclined relative to the depth direction of the groove 112; exemplarily, such as Figure 6 As shown, both sides of the groove 112 include a vertical section and an inclined section. The vertical section is parallel to the depth direction of the groove 112, and the two inclined sections gradually approach each other along the depth direction of the groove. This arrangement of the groove 112 allows the portion of the connector 20 filled into the groove 112 to bond more firmly with the conductive terminal 10, improving the bonding strength and tightness between the conductive terminal 10 and the connector 20. This ensures a sealing capability of less than 0.5cc / min leakage under an inflation pressure of 3 bar, thus improving the reliability of the seal. In other embodiments, the two sides of the groove 112 can also extend along the depth direction of the groove 112, meaning that the cross-section of the groove 112 along the length of the conductive terminal 10 is parallel to the depth direction. This arrangement can achieve the same effect as described above, and the specific shape of the groove 112 is not limited.
[0070] For example, such as Figure 7 As shown, in this embodiment, the cross-section of the groove 112 along the depth direction includes two opposing sidewalls. The two sidewalls are symmetrically arranged along the center line of the groove 112, which is the line connecting the center point of the groove opening and the center point of the groove bottom of the groove 112.
[0071] In one embodiment, to ensure the bonding strength and sealing effect between the connector 20 and the conductive terminal 10, for example, such as Figure 6As shown, in the embodiment, the length of the bonding section 11 is identified as w2, and w2 is not less than 5 mm; the distance between adjacent groove seams is identified as l2, and l2 is set to be not more than 0.5 mm, for example, 0.1 mm or 0.4 mm; the length of each groove seam 112 along the length direction of the bonding section 11 is identified as d2, and d2 is set to be 0.05 mm or 0.1 mm; the depth of each groove seam 112 is identified as h2, and h2 is set to be 0.5 mm or 0.8 mm, and the above setting parameters can be adjusted according to actual conditions, and no more limitation is made.
[0072] In an embodiment, the bonding section 11 has a plurality of outer surfaces, and at least one of the groove-shaped structures is arranged on at least two of the outer surfaces. Figure 3 As shown, in the embodiment, the bonding section 11 includes four outer surfaces, and the groove-shaped structure can be arranged on any one of the four outer surfaces. The groove-shaped structure can also be arranged on two or more outer surfaces, and the outer surface without the groove-shaped structure can be sealed and connected with the connecting seat 20 by the existing dispensing method. In the embodiment, the groove-shaped structures arranged on adjacent outer surfaces can be arranged in a spaced manner or in a connected manner. For example, the groove-shaped structures arranged on adjacent outer surfaces are arranged in a spaced manner, so that the structural strength of the conductive terminal 10 itself can be improved compared with the connected arrangement. When the groove-shaped structures arranged on adjacent outer surfaces are arranged in a connected manner, the sealing degree of the bonding with the connecting seat 20 can be further improved. In the embodiment, the groove-shaped structure can be a groove seam 112 or a groove 111, and no more limitation is made.
[0073] The utility model also proposes a motor controller, the motor controller includes the connector 1 of any one embodiment as above, the specific structure of the connector 1 refers to the above embodiment, because the motor controller adopts all technical schemes of the above all embodiments, therefore at least has all beneficial effects brought by the technical scheme of the above embodiment, here no longer one by one elaborates. The motor controller can be used on the motor.
[0074] The utility model also proposes a car, the car includes the motor controller or motor in the above embodiment, the specific structure of the motor controller refers to the above embodiment, because the car adopts all technical schemes of the above all embodiments, therefore at least has all beneficial effects brought by the technical scheme of the above embodiment, here no longer one by one elaborates. The car can be fuel car, also can be new energy car, and no more limitation is made.
[0075] The above merely illustrates the exemplary embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation or direct / indirect application in other related technical fields under the technical concept of the present application and by using the content of the present application specification and drawings are included in the patent protection scope of the present application.
Claims
1. A connector, characterized in that, include: A conductive terminal having a connecting section having multiple outer surfaces, and at least one groove-shaped structure provided on at least one outer surface of the connecting section; as well as, A connector is fitted onto the connecting section and fills the groove structure; the connector and the conductive terminal are integrally formed.
2. The connector as described in claim 1, characterized in that, The number of groove-shaped structures is multiple, and the multiple groove-shaped structures are arranged at intervals along the length direction and / or width direction of the connecting section.
3. The connector as described in claim 1, characterized in that, The groove-shaped structure is provided on at least two outer surfaces of the connecting section, and the groove-shaped structure on each outer surface is spaced apart.
4. The connector as claimed in claim 1, characterized in that, The cross-section of the groove structure along the depth direction includes two opposing sidewalls, at least a portion of which are symmetrically arranged along the center line of the groove structure, which is the line connecting the center point of the groove opening and the center point of the groove bottom.
5. The connector as claimed in claim 1, characterized in that, At least a portion of the groove wall of the groove structure is inclined relative to the depth direction of the groove structure.
6. The connector as described in claim 5, characterized in that, The cross-section of the groove structure along the depth direction includes two opposing sidewalls, at least a portion of which of the two sidewalls is inclined relative to the depth direction of the groove structure.
7. The connector as claimed in claim 6, characterized in that, The width of the slot opening of the groove structure is gradually decreasing and / or gradually increasing along the depth direction of the groove structure.
8. The connector as claimed in any one of claims 1 to 7, characterized in that, The groove-shaped structure is a groove, and there are multiple grooves. At least some of the grooves form a center line with the center line of the line connecting the center point of the groove opening and the center point of the groove bottom, which forms an angle α with the surface of the groove, and the angle α is 30 to 60 degrees.
9. The connector as claimed in claim 8, characterized in that, Multiple grooves are arranged at intervals along the width direction of the connecting section to form a linear groove group. The linear groove group has multiple rows, and the multiple rows of linear groove groups are arranged at intervals along the length direction of the connecting section.
10. The connector as claimed in claim 9, characterized in that, The length of the connecting section along the longitudinal direction is 5-10 mm; And / or, the distance between adjacent grooves is 0.25 to 0.5 mm; And / or, the width of each of the grooves is 0.3 to 0.5 mm; And / or, the groove depth of each of the grooves is 0.3 to 0.5 mm.
11. The connector as claimed in claim 9, characterized in that, The groove walls of each groove within each linear groove group have the same inclination direction; The groove walls of each groove in two adjacent rows of the linear grooves are inclined in opposite directions.
12. The connector as claimed in any one of claims 1 to 7, characterized in that, The groove-shaped structure is a groove joint, and multiple groove joints are provided, with the multiple groove joints arranged at intervals along the length direction of the joint section. And / or, the length of the connecting segment along the length direction is not less than 5 mm; And / or, the distance between adjacent grooves is not greater than 0.5 mm; And / or, the length of each of the grooves along the length of the joint section is 0.05 to 0.1 mm; And / or, the depth of each of the grooves is 0.5 to 0.8 mm.
13. A motor controller, characterized in that, Includes the connector as described in any one of claims 1 to 12.
14. A car, characterized in that, Including the motor controller as described in claim 13.