Electric connector and battery
By using threaded connections and interference fits between the sleeve and conductive sheet, the problems of complex welding and high-temperature deformation were solved, enabling simple assembly and low impedance of electrical connectors, thus improving the product quality of the battery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG YINLUN MACHINERY
- Filing Date
- 2025-03-27
- Publication Date
- 2026-05-01
AI Technical Summary
When the output electrodes of existing battery modules are electrically connected to other modules, the welding process is complex and costly. Furthermore, the high temperature during welding can easily cause component deformation and increased impedance, affecting the product qualification rate.
The sleeve and conductive plate are connected by threads, which combines interference fit and threaded connection to avoid welding. The sleeve and the fastener are connected by threads, the conductive plate and the sleeve are interference fit, and the fastener and the sleeve are threaded, forming a simple and reliable electrical connection structure.
This enables simple assembly of electrical connectors, reduces process costs, minimizes component deformation and impedance, and improves product qualification rate and quality.
Smart Images
Figure CN224191230U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery technology, and in particular to an electrical connector and a battery. Background Technology
[0002] When the output electrodes of existing battery modules are electrically connected to other modules, the electrical connection structure typically uses copper bars and sleeves welded together. This welding process is complex, has high manufacturing costs, and the high temperatures involved in welding can easily generate thermal stress, leading to component deformation, increased impedance, and ultimately hindering product yield. Utility Model Content
[0003] The purpose of this invention is to provide an electrical connector and battery that are simple to assemble, require no welding, and have low impedance.
[0004] In a first aspect, this utility model provides an electrical connector, comprising:
[0005] Sleeve, the sleeve being provided with a first thread;
[0006] A conductive sheet having a first surface and a second surface disposed opposite to each other; a sleeve connected to the conductive sheet, and the sleeve at least partially protruding from the first surface; the conductive sheet having a through hole penetrating the first surface and the second surface;
[0007] A fastener, wherein the fastener is provided with a second thread adapted to the first thread, the fastener and / or the sleeve are inserted into the through hole, the fastener is at least partially located on one side of the second surface, and the fastener is threadedly connected to the sleeve.
[0008] In an optional embodiment, the sleeve and the conductive sheet are interference-fitted together.
[0009] In an optional embodiment, the sleeve includes a stop surface, a first outer peripheral surface, and a second outer peripheral surface, wherein the stop surface is connected to the first outer peripheral surface and the second outer peripheral surface respectively; the stop surface, the first outer peripheral surface, and the second outer peripheral surface form a step.
[0010] The first outer peripheral surface and the through hole are interference-fitted, and the stop surface abuts against the first surface; the second outer peripheral surface protrudes from the first surface.
[0011] In an optional embodiment, the sleeve includes a plurality of positioning portions, the positioning portions protruding relative to the first outer peripheral surface in a direction away from the inner cavity of the sleeve, and the positioning portions and the first outer peripheral surface respectively having an interference fit with the through hole.
[0012] In an optional embodiment, the conductive sheet is provided with a plurality of positioning slots communicating with the through holes, and the positioning slots and the positioning parts are respectively provided in a one-to-one correspondence; the positioning parts are interference-fitted with the positioning slots.
[0013] In an optional embodiment, the fixing member includes a fixed end plate and a fixing rod connected together. The fixing rod is provided with external threads. The fixed end plate is located on one side of the second surface of the conductive sheet. The fixing rod passes through the through hole. The end of the fixing rod away from the fixed end plate protrudes from the sleeve on the side away from the first surface.
[0014] In an optional embodiment, a fitting is also included, to which the fastener is connected.
[0015] In an optional embodiment, the end of the fixing rod away from the fixing end plate is provided with a slot. The slot is recessed from the outer peripheral wall of the fixing rod toward the central axis of the fixing rod; the fitting is provided with a protrusion, which engages with the slot.
[0016] In an alternative embodiment, the sleeve and the fitting are connected or integrally formed.
[0017] In an optional embodiment, the sleeve includes a mounting portion protruding from one side of the second surface; the fastener is threaded onto the outer periphery of the mounting portion.
[0018] Secondly, the present invention provides a battery including the electrical connector described in any of the foregoing embodiments.
[0019] The electrical connector and battery provided in this embodiment of the utility model have the following advantages:
[0020] The electrical connector provided in this embodiment of the invention features a conductive sheet and a sleeve connection, with the sleeve and a fixing component connected by threads. Assembly is simple and convenient, requiring no welding and resulting in lower processing costs. Furthermore, minimal deformation of parts during assembly avoids deformation or increased impedance due to high temperatures, thus improving product yield.
[0021] The battery provided in this embodiment of the utility model includes the above-mentioned electrical connectors, which are simple and convenient to assemble, have a reliable structure, low impedance, and low cost, and are conducive to improving product quality. Attached Figure Description
[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the overall structure of the electrical connector provided in an embodiment of the present utility model;
[0024] Figure 2 Another structural schematic diagram of the electrical connector provided in an embodiment of this utility model;
[0025] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure of AA;
[0026] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure of BB;
[0027] Figure 5 A schematic diagram of the sleeve and conductive sheet of the electrical connector provided in an embodiment of this utility model;
[0028] Figure 6 A schematic diagram of a sleeve for an electrical connector provided in an embodiment of this utility model;
[0029] Figure 7 Another connection structure for the sleeve and the fixing member of the electrical connector provided in the embodiment of this utility model;
[0030] Figure 8 This invention provides another connection structure for the sleeve and fixing member of the electrical connector provided in the embodiments of the present invention.
[0031] Icons: 100 - Electrical connector; 110 - Conductive sheet; 111 - First surface; 112 - Second surface; 113 - Through hole; 114 - Positioning bayonet; 120 - Sleeve; 121 - First outer peripheral surface; 122 - Second outer peripheral surface; 123 - Stop surface; 124 - Positioning part; 125 - Mounting part; 130 - Fixing part; 131 - Fixing end plate; 132 - Fixing rod; 133 - Slot; 134 - Second annular part; 135 - Screw; 140 - Pair of accessories. Detailed Implementation
[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0034] It should be noted that similar labels 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.
[0035] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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 commonly used when the product of this utility model is in use. They are only for the convenience of describing this 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 this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0036] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0037] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 utility model based on the specific circumstances.
[0038] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0039] The present invention provides an electrical connector that can be used for the electrical connection of the output electrode in a battery structure. It has a simple structure, is easy to operate, and has low impedance.
[0040] Please combine Figures 1 to 4 The electrical connector 100 includes a sleeve 120, a conductive plate 110, and a fixing member 130. The sleeve 120 has a first thread. The conductive plate 110 has a first surface 111 and a second surface 112 disposed opposite each other. The sleeve 120 is connected to the conductive plate 110, and the sleeve 120 at least partially protrudes from the first surface 111. The conductive plate 110 has a through hole 113 penetrating the first surface 111 and the second surface 112 (see...). Figure 5 The fastener 130 has a second thread that matches the first thread. The fastener 130 and / or the sleeve 120 pass through the through hole 113, and the fastener 130 is threadedly connected to the sleeve 120. The fastener 130 is at least partially located on one side of the second surface 112. The conductive sheet 110 is connected to the sleeve 120, and the sleeve 120 is threadedly connected to the fastener 130. The assembly operation is simple and convenient, requiring no welding and resulting in lower process costs. Furthermore, the assembly process minimizes part deformation, avoiding deformation or increased impedance due to high temperatures, which helps improve product yield.
[0041] It is understood that of the first and second threads, one is an internal thread and the other is an external thread. The sleeve 120 and the fastener 130 are connected by the first and second threads.
[0042] Optionally, the conductive sheet 110 may be made of copper or other conductive materials. The fastener 130 may be a nut or screw or similar structure. The sleeve 120 and the conductive sheet 110 are connected by an interference fit. It is understood that the interference fit connection method includes, but is not limited to, press fitting, insertion, riveting, or snap-fit.
[0043] In this embodiment, the conductive sheet 110 and the sleeve 120 are fixed together by press fitting, eliminating the need for high-temperature welding. This method is convenient, quick, and structurally reliable. Press fitting also prevents deformation of the parts at high temperatures. Furthermore, after press fitting, the conductive sheet 110 and the sleeve 120 fit tightly together, effectively reducing the gap between the parts, thereby reducing impedance and improving conductivity.
[0044] Please combine Figure 5 and Figure 6Optionally, the sleeve 120 includes a stop surface 123, a first outer peripheral surface 121, and a second outer peripheral surface 122. The stop surface 123 is connected to both the first and second outer peripheral surfaces 121 and 122, respectively. The diameter of the first outer peripheral surface 121 is smaller than the diameter of the second outer peripheral surface 122. The stop surface 123, the first outer peripheral surface 121, and the second outer peripheral surface 122 form a step. The first outer peripheral surface 121 and the through hole 113 are interference-fitted, meaning the first outer peripheral surface 121 and the hole wall of the through hole 113 are tightly joined together. The stop surface 123 abuts against the first surface 111; the second outer peripheral surface 122 protrudes from the first surface 111. This configuration ensures that the first outer peripheral surface 121 is completely located within the through hole 113, increasing the contact area, making the connection structure more reliable, and helping to reduce impedance. It is understandable that the first outer peripheral surface 121, the second outer peripheral surface 122 and the stop surface 123 form a step-like structure. During the press-fitting process, this step structure is beneficial for assembly positioning and improves press-fitting accuracy and assembly efficiency.
[0045] Optionally, the sleeve 120 further includes a positioning part 124, which protrudes from the first outer peripheral surface 121 in a direction away from the inner cavity of the sleeve 120. The positioning part 124 and the first outer peripheral surface 121 are respectively press-fitted with the through hole 113. Correspondingly, the cross-sectional shape of the through hole 113 on the conductive sheet 110 is adapted to the shape of the first outer peripheral surface 121 and the positioning part 124. By using the protruding positioning part 124, relative rotation between the sleeve 120 and the conductive sheet 110 can be prevented, resulting in a more reliable structure, a more stable press-fit structure, and better conductivity.
[0046] Correspondingly, the conductive sheet 110 is provided with a plurality of positioning slots 114 communicating with the through holes 113, and the positioning slots 114 and the positioning parts 124 are provided in a one-to-one correspondence; the cross-sectional shape of the positioning slots 114 and the cross-sectional shape of the positioning parts 124 are adapted to each other, and the positioning parts 124 and the positioning slots 114 are interference fit.
[0047] Optionally, the fixing member 130 includes a connected fixing end plate 131 and a fixing rod 132. The fixing rod 132 has external threads. The fixing end plate 131 is located on one side of the second surface 112 of the conductive sheet 110. The fixing rod 132 passes through a through hole 113. The end of the fixing rod 132 away from the fixing end plate 131 protrudes from the sleeve 120 away from the first surface 111. It can be understood that the fixing rod 132 passes from the first surface 111 of the conductive sheet 110 through the through hole 113 to the second surface 112. The sleeve 120 has internal threads. After passing through the through hole 113, the fixing rod 132 is threadedly connected to the sleeve 120. When the fixing rod 132 and the sleeve 120 are threadedly tightened, the fixing end plate 131 abuts against the first surface 111 of the conductive sheet 110 to reduce the gap between the fixing member 130 and the conductive sheet 110. Furthermore, the threaded connection also helps to reduce the gap between the fixing member 130 and the sleeve 120, thereby reducing impedance.
[0048] Optionally, the outer surface of the fixing rod 132 and the inner surface of the sleeve 120 are respectively provided with a conductive and wear-resistant coating. The material of the conductive and wear-resistant coating includes, but is not limited to, any one or more of nickel, palladium, titanium, and tungsten. The conductive and wear-resistant coating helps to improve conductivity and reduce impedance.
[0049] Optionally, the end of the fixing rod 132 away from the fixing end plate 131 is provided with a slot 133. The slot 133 is recessed from the outer peripheral wall of the fixing rod 132 toward the central axis of the fixing rod 132. The slot 133 facilitates connection with the fitting 140, making installation convenient and improving assembly efficiency. It should be understood that the position of the slot 133 on the fixing rod 132 significantly extends beyond the end face of the sleeve 120 away from the conductive sheet 110, so that the sleeve 120 will not hinder the assembly of the fitting 140 and the fixing rod 132. Optionally, the fitting 140 is provided with a protrusion that engages with the slot 133. The position and cross-sectional shape of the protrusion are adapted to the position and cross-sectional shape of the slot 133 to improve the connection reliability between the fitting 140 and the fixing rod 132. Furthermore, it can reduce the gap between the fitting 140 and the fixing rod 132, thus reducing impedance.
[0050] Optionally, in some embodiments, the electrical connector 100 further includes a mating fitting 140, with the fastener 130 connected to the mating fitting 140. Optionally, the sleeve 120 and the mating fitting 140 are connected or integrally formed. The connection between the sleeve 120 and the mating fitting 140 includes, but is not limited to, press-fitting, insertion, riveting, threaded connection, or snap-fitting. If the sleeve 120 and the mating fitting 140 are integrally formed, the number of assembly parts can be reduced, assembly efficiency can be improved, and the conductivity of the electrical connector 100 can be improved, reducing impedance.
[0051] Combination Figure 7 The sleeve 120 has external threads, and the fastener 130 has internal threads. The sleeve 120 includes a mounting portion 125 protruding from one side of the second surface 112; the fastener 130 is threadedly connected to the outer periphery of the mounting portion 125. Optionally, the sleeve 120 passes through the through hole 113 of the conductive sheet 110, and the portion of the sleeve 120 located on one side of the second surface 112 of the conductive sheet 110 serves as the mounting portion 125, which has external threads. The fastener 130 is a first annular member with internal threads, and the fastener 130 and the mounting portion 125 are threadedly connected. Optionally, the sleeve 120 can be press-fitted to the conductive sheet 110. The accessory 140 can be connected to the sleeve 120.
[0052] Or, combine Figure 8The fastener 130 includes a second annular member 134 with internal threads, and a screw 135 connected to the sleeve. The screw 135 and the sleeve 120 are coaxially arranged and fixedly connected, with both ends of the screw 135 extending out of the sleeve 120. One end of the screw 135 protruding from the second surface 112 serves as a mounting part 125 and is threadedly connected to the second annular member 134, while the other end is connected to the fitting 140. Of course, the screw 135 and the sleeve 120 can also be integrally formed, which is not specifically limited here.
[0053] This embodiment of the invention also provides a battery, including the aforementioned electrical connector 100. The electrical connector 100 has a simple structure, is easy to assemble, and has a simple assembly process, which helps improve assembly efficiency. Furthermore, during assembly, there is minimal deformation of parts and low impedance, which helps improve product yield.
[0054] In summary, the electrical connector 100 and battery provided in this embodiment of the present invention have the following beneficial effects, including:
[0055] The electrical connector 100 provided in this embodiment connects the conductive sheet 110 and the sleeve 120, and the sleeve 120 and the fixing member 130 are threaded together. Assembly is simple and convenient, requiring no welding and resulting in lower process costs. The impedance between parts is unaffected by high temperatures, and the impedance is relatively lower. Furthermore, minimal deformation of parts during assembly avoids deformation or increased impedance due to high temperatures, thus improving product yield. The fixing rod 132 has a slot 133 for easy connection with the accessory 140, further simplifying assembly. The entire assembly process is simple, without complex procedures, facilitating automated mass production and reducing costs.
[0056] The battery provided in this embodiment of the utility model includes the above-mentioned electrical connector 100, which is simple and convenient to assemble, has a reliable structure, low impedance, and low cost, and is conducive to improving product quality.
[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Any modifications, equivalent substitutions, improvements, etc., should be included within the protection scope of this utility model.
Claims
1. An electrical connector, characterized in that, include: A sleeve (120) having a first thread; A conductive sheet (110) has a first surface (111) and a second surface (112) disposed opposite to each other; the conductive sheet (110) is provided with a through hole (113) penetrating the first surface (111) and the second surface (112); the sleeve (120) is electrically connected to the conductive sheet (110); The fastener (130) is provided with a second thread that is adapted to the first thread. The fastener (130) is threadedly connected to the sleeve (120) and electrically connected to the sleeve (120). The fastener (130) and / or the sleeve (120) pass through the through hole (113), and the sleeve (120) is at least partially located on the first surface (111) side, and the fastener (130) is at least partially located on the second surface (112) side.
2. The electrical connector according to claim 1, characterized in that, The sleeve (120) and the conductive sheet (110) are connected by an interference fit.
3. The electrical connection of claim 2, wherein, The sleeve (120) includes a stop surface (123), a first outer peripheral surface (121), and a second outer peripheral surface (122). The stop surface (123) is connected to the first outer peripheral surface (121) and the second outer peripheral surface (122) respectively. The stop surface (123), the first outer peripheral surface (121), and the second outer peripheral surface (122) form a step. The first outer peripheral surface (121) and the through hole (113) are interference fit, and the stop surface (123) abuts against the first surface (111); the second outer peripheral surface (122) protrudes from the first surface (111).
4. An electrical connection as claimed in claim 3, characterised in that The sleeve (120) includes a plurality of positioning portions (124), which protrude from the first outer peripheral surface (121) toward the direction away from the inner cavity of the sleeve (120). The positioning portions (124) and the first outer peripheral surface (121) are respectively interference-fitted with the through hole (113).
5. The electrical connector according to claim 4, characterized in that, The conductive sheet (110) is provided with a plurality of positioning slots (114) communicating with the through hole (113), and the positioning slots (114) and the positioning part (124) are provided in a one-to-one correspondence; the positioning part (124) and the positioning slots (114) are interference fit.
6. The electrical connection of claim 1, wherein, The fixing member (130) includes a fixed end plate (131) and a fixing rod (132) connected together. The fixing rod (132) is provided with external threads. The fixed end plate (131) is located on one side of the second surface (112) of the conductive sheet (110). The fixing rod (132) passes through the through hole (113). The end of the fixing rod (132) away from the fixed end plate (131) protrudes from the sleeve (120) on the side away from the first surface (111).
7. An electrical connection as claimed in claim 6, characterised in that It also includes a fitting (140), to which the fastener (130) is connected; or, the sleeve (120) and the fitting (140) are connected or integrally formed.
8. An electrical connection as claimed in claim 7, characterised in that The fixed rod (132) has a slot (133) at one end away from the fixed end plate (131). The slot (133) is recessed from the outer peripheral wall of the fixed rod (132) toward the central axis of the fixed rod (132). The fitting (140) has a protrusion, which engages with the slot (133).
9. The electrical connector according to claim 1, characterized in that, The sleeve (120) includes a mounting portion (125) protruding from one side of the second surface (112); the fastener (130) is threaded to the outer periphery of the mounting portion (125).
10. A battery, characterized in that, Includes the electrical connector as described in any one of claims 1 to 9.