Connecting terminal, electronic device and new energy automobile
By designing connecting columns extending in width direction, large current support and space saving of board-to-board plug-in connection terminals are achieved, and the problem of board-to-board connections in the prior art is difficult to be suitable for large currents and large space occupancy.
Patent Information
- Application Number
- CN202420140230.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-19
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-01-19
AI Technical Summary
Among the existing automotive electronic module board-to-board connection methods, especially the plug-in connection method, it is difficult to be suitable for large currents and occupy a large space.
A connection terminal is designed, adopting a plug-in connection method, and the two connecting columns extend from both sides in the width direction of the main body to the outside, increasing the distance and radial dimensions between the connecting columns, supporting the transmission of larger currents. , while reducing the number of connecting columns and space occupancy.
It realizes board-to-board connections suitable for high currents, while reducing the space occupation of the connection terminals and improving connection efficiency and stability.
Smart Images
Figure CN222261430U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of circuit connection of new energy vehicles, and more specifically, to a connection terminal. In addition, the utility model also relates to an electronic device including the connection terminal and a new energy vehicle including the electronic device. Background Art
[0002] The connection methods of the upper and lower circuit boards of automotive electronic modules generally include wire-to-wire, wire-to-board, and board-to-board. Among them, the wire-to-wire and wire-to-board connection methods require multiple lines to be connected, which is cumbersome and costly. Among the board-to-board connection methods, most of them are currently top-plug connection methods. The existing board-to-board bottom-plug connection method is generally suitable for small currents and occupies a large space.
[0003] In summary, how to provide a connection terminal that is applicable to large currents and reduces the occupied space is a problem that needs to be solved urgently by those skilled in the art. Utility Model Content
[0004] In view of this, the purpose of the utility model is to provide a connecting terminal for a bottom-plug connection method of board-to-board connection, in which the connecting column can connect a larger current and occupies a smaller space.
[0005] Another object of the utility model is to provide an electronic device comprising the above-mentioned connecting terminal and a new energy vehicle comprising the above-mentioned electronic device.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A connecting terminal, comprising:
[0008] a first circuit board;
[0009] A second circuit board, located at the lower side of the first circuit board;
[0010] The female terminal comprises a main body with an opening toward the first circuit board and two connecting posts, wherein the two connecting posts extend outward from both sides of the main body in a width direction respectively; and the connecting posts are inserted into the first circuit board and electrically connected to the first circuit board;
[0011] A male terminal has one end connected to the second circuit board, and the other end passes through the first circuit board and is inserted into the female terminal through the opening of the main body.
[0012] Optionally, the connecting column includes an extension section and a vertical section. Along the width direction of the main body, the extension section extends outward from the side of the main body, and the vertical section is connected to the extension section and extends in the vertical direction. The vertical section is plugged into the first circuit board.
[0013] Optionally, an arc-shaped transition section is provided at the connection between the extension section and the main body, and the arc-shaped transition section has both a component extending outwardly along the width direction of the main body and a component extending downwardly along the vertical direction.
[0014] Optionally, a guide member is provided at the opening of the main body; the guide member is inclined outward from the opening of the main body;
[0015] Alternatively, the inner side surface of the extension section is provided with a guiding inclined surface or a guiding curved surface for guiding.
[0016] Optionally, the connecting column and the main body are an integrated structure.
[0017] Optionally, the connecting column is provided with a first limiting boss for limiting the insertion depth of the connecting column in the first circuit board, and the first limiting boss is provided with an outer peripheral side surface of the connecting column;
[0018] And / or, a second limiting boss for limiting the insertion depth of the male terminal in the second circuit board is provided at one end of the male terminal close to the second circuit board.
[0019] Optionally, the main body includes a plurality of relatively arranged spring sheets for clamping the male terminal, and a plurality of bending protrusions are arranged along the extension direction of the spring sheets, and the bending protrusions are arc surfaces with smooth transitions.
[0020] Optionally, the female terminal is provided with a detection component and an indicator light, the detection component is used to detect whether the male terminal is plugged into the female terminal and electrically connected, and the indicator light is used to light up to prompt when the male terminal and the female terminal are plugged together and electrically connected.
[0021] An electronic device comprises a plurality of connection terminals as described above.
[0022] A new energy vehicle, characterized by comprising the electronic device described above.
[0023] In the process of using the connecting terminals provided by the utility model, it is first necessary to fix and install the first circuit board, and plug the connecting column of the female terminal into the first circuit board to electrically connect the first circuit board with the female terminal, install the male terminal to the second circuit board, and then plug the male terminal into the main body through the opening at the lower end of the female terminal to achieve electrical connection between the male terminal and the female terminal, and then fix and install the second circuit board to achieve electrical connection between the second circuit board and the first circuit board.
[0024] Compared with the prior art, since the two connecting posts in the present solution extend outward from both sides of the width direction of the main body respectively, the distance between the two connecting posts is greater than the width of the main body. When the width of the main body is the same, the distance between the two connecting posts can be effectively increased. On the other hand, since only two connecting posts are provided, the radial dimensions of the connecting posts can be appropriately increased, so that the connecting posts can connect a larger current. At the same time, the number of connecting posts is effectively reduced, which can effectively reduce the space occupied by the connecting posts on the first PCB board and reduce the space occupied by the overall connecting terminal.
[0025] In addition, the utility model also provides an electronic device including the above-mentioned connecting terminal and a new energy vehicle including the above-mentioned electronic device. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.
[0027] Figure 1 A schematic structural diagram of a specific embodiment of the connecting terminal provided by the utility model;
[0028] Figure 2 It is a structural diagram of the female terminal;
[0029] Figure 3 for Figure 2 A schematic cross-sectional view of the middle female terminal;
[0030] Figure 4 for Figure 2 Side view of the middle female terminal.
[0031] Figure 1-Figure 4 middle:
[0032] 1 is a first circuit board;
[0033] 2 is the female terminal;
[0034] 21 is the main body, 211 is the spring sheet, 2111 is the bent convex part, and 212 is the dovetail groove;
[0035] 22 is a connecting column, 221 is an extension section, and 222 is a vertical section;
[0036] 23 is a first limiting boss;
[0037] 3 is a second circuit board;
[0038] 4 is a male terminal and 41 is a second limiting boss. DETAILED DESCRIPTION
[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0040] The core of the utility model is to provide a connection terminal, which is used for a bottom plug-in connection mode of board-to-board connection. The connection column can connect a larger current and occupies a smaller space.
[0041] Another core of the utility model is to provide an electronic device including the above-mentioned connecting terminal and a new energy vehicle including the above-mentioned electronic device.
[0042] Please refer to Figure 1-Figure 4 .
[0043] This specific embodiment discloses a connecting terminal, including a first circuit board 1, a second circuit board 3, a female terminal 2 and a male terminal 4, the second circuit board 3 is located at the lower side of the first circuit board 1, the female terminal 2 includes a main body 21 with an opening toward the first circuit board 1 and two connecting columns 22, the two connecting columns 22 extend outward from both sides of the width direction of the main body 21 respectively to avoid the male terminal 4; and the connecting columns 22 are inserted into the first circuit board 1 and electrically connected to the first circuit board 1; one end of the male terminal 4 is connected to the second circuit board 3, and the other end passes through the first circuit board 1 and is inserted into the female terminal 2 through the opening of the main body 21.
[0044] It should be noted that the width direction of the main body 21 mentioned in this specific embodiment is Figure 2 The arrangement direction of the spring pieces 211 on the same side is also the spacing direction of the two connecting pillars 22 .
[0045] In this specific embodiment, the two connecting columns 22 extend outward from both sides of the width direction of the main body 21. Specifically, the connecting columns 22 may have both the extension outward along the width direction of the main body 21 and the extension downward along the vertical direction, or the connecting columns 22 may have both the extension outward along the width direction of the main body 21 and the extension outward along the thickness direction of the main body 21; the thickness direction of the main body 21 is perpendicular to both the width direction and the vertical direction.
[0046] In the process of using the connecting terminals provided in this specific embodiment, it is first necessary to fix and install the first circuit board 1, and plug the connecting column 22 of the female terminal 2 into the first circuit board 1 to electrically connect the first circuit board 1 with the female terminal 2, install the male terminal 4 to the second circuit board 3, and then plug the male terminal 4 into the main body 21 through the opening at the lower end of the female terminal 2 to achieve electrical connection between the male terminal 4 and the female terminal 2, and then fix and install the second circuit board 3 to achieve electrical connection between the second circuit board 3 and the first circuit board 1.
[0047] Compared with the prior art, in this specific embodiment, the two connecting columns 22 extend outward from both sides of the width direction of the main body 21, respectively, so that the distance between the two connecting columns 22 is greater than the width of the main body 21. When the width of the main body 21 is the same, the distance between the two connecting columns 22 can be effectively increased. On the other hand, since only two connecting columns 22 are provided, the radial dimensions of the connecting columns 22 can be appropriately increased, so that the connecting columns 22 can connect a larger current. At the same time, the number of connecting columns 22 is effectively reduced, which can effectively reduce the space occupied by the connecting columns 22 on the first PCB board, thereby reducing the space occupied by the overall connecting terminal.
[0048] On the one hand, the connection column 22 in this specific embodiment can be a straight structure without bending, or a bent structure with bending, which is determined according to actual conditions.
[0049] On the other hand, the two connecting posts 22 in this specific embodiment are symmetrically arranged about the middle section of the main body 21, and the middle section mentioned here is a section perpendicular to the width direction of the main body 21. The two connecting posts 22 are symmetrically arranged about the middle section of the main body 21, which is convenient for processing and is conducive to improving the working stability when the current is connected.
[0050] In a specific embodiment, the connecting column 22 includes an extension section 221 and a vertical section 222. Along the width direction of the main body 21, the extension section 221 extends outward from the side of the main body 21, and the vertical section 222 is connected to the extension section 221 and extends along the vertical direction. The vertical section 222 is plugged into the first circuit board 1.
[0051] The vertical section 222 can be plugged into the first circuit board 1 perpendicularly to the first circuit board 1 during the plugging process, which facilitates the welding operation.
[0052] The extension section 221 may be arranged in an arc shape, or may be arranged in an inclined manner, or may be arranged horizontally, which is determined according to actual conditions.
[0053] Specifically, an arc-shaped transition section is provided at the connection between the extension section 221 and the main body 21 , and the arc-shaped transition section has both a component extending outward along the width direction of the main body 21 and a component extending downward along the vertical direction.
[0054] During the extension process, the curvature of the extension section 221 can be as follows: Figure 2 As shown, it faces downward to avoid occupying too much space in the height direction; it can also be bent upward to reserve enough opening space for the insertion of the male terminal 4. The specific amount is determined according to actual conditions and will not be elaborated here.
[0055] like Figure 1 As shown, the female terminal 2 is inserted into the first circuit board 1 from the upper side. The first circuit board 1 is provided with a through hole for the male terminal 4 to pass through. The male terminal 4 passes through the through hole and is inserted into the main body 21 through the opening of the main body 21 of the female terminal 2 to achieve electrical connection with the main body 21.
[0056] Considering that it is difficult to align the male terminal 4 with the opening of the main body 21 of the female terminal 2 during the plugging process, a guide member can be provided at the opening of the main body 21; the guide member is inclined outward from the opening of the main body 21.
[0057] Specifically, guides can be provided on both sides of the opening of the main body 21 of the female terminal 2 in the width direction, and the guides gradually converge from one end away from the opening of the main body 21 to one end close to the opening of the main body 21, toward the direction close to the edge of the opening, so as to play a guiding role. Alternatively, the guides are provided as an arc-shaped structure, and the guides gradually extend outward from one end close to the opening of the main body 21 to one end away from the opening of the main body 21, so as to play a guiding role.
[0058] On the other hand, a plurality of guide members may be provided, and the plurality of guide members are evenly distributed along the circumference of the opening of the main body 21, and the guide members gradually converge toward the edge of the opening from one end far from the opening of the main body 21 to one end close to the opening of the main body 21, or the guide members are arc-shaped structures, and the guide members gradually extend outward from one end close to the opening of the main body 21 to one end far from the opening of the main body 21, so as to achieve a guiding effect.
[0059] In addition, a guiding slope or guiding arc surface can be set on the inner side surface of the extension section 221. There is no need to set a separate guide member. The inner side surface of the extension section 221 can be used for guiding. In the actual processing process, the structure of the connecting terminal can be simplified and the cost can be reduced.
[0060] On the basis of the above-mentioned embodiment, considering the characteristics of actual processing, the connecting column 22 and the main body 21 can be set as an integrated structure.
[0061] Specific, combined Figure 2 , Figure 4 As shown, the female terminal 2 is formed by winding a sheet structure, such as Figure 4 As shown, a dovetail groove 212 is provided at one end of the connection of the sheet structure, and a dovetail-shaped convex portion for matching with the dovetail groove 212 is provided at the other end. When the dovetail groove 212 is matched with the dovetail-shaped convex portion, Figure 4 The welding is performed at the position shown, which may be laser spot welding or other welding methods that meet the requirements, so that the female terminal 2 is processed, formed and fixed.
[0062] In this specific embodiment, the connecting column 22 and the main body 21 are formed by winding the same sheet structure, and can be integrally formed, thereby reducing the processing cost.
[0063] In a specific embodiment, considering the positioning of the female terminal 2 when inserted into the first circuit board 1, a first limiting boss 23 for limiting the insertion depth of the female terminal 2 into the first circuit board 1 can be provided on the connecting column 22, and the first limiting boss 23 is provided on the outer peripheral side of the connecting column 22.
[0064] Specifically, Figure 2 As shown, the first limiting boss 23 can be set as a protruding structure facing the inner side of the two connecting columns 22 to avoid the first limiting boss 23 occupying additional outer space. At the same time, the protruding size of the first limiting boss 23 needs to avoid the path of the male terminal 4 during the plug-in process to achieve avoidance of the male terminal 4 during the plug-in process.
[0065] A second limiting boss 41 for limiting the insertion depth of the male terminal 4 in the second circuit board 3 is provided at one end of the male terminal 4 close to the second circuit board 3. The second limiting boss 41 protrudes toward the outside of the male terminal 4. When the male terminal 4 is inserted into the second circuit board 3, the second limiting boss 41 contacts the upper surface of the second circuit board 3 and is snap-connected with the second circuit board 3 to limit the insertion depth of the male terminal 4 relative to the second circuit board 3.
[0066] Combination Figure 2 , Figure 3As shown, the main body 21 includes a plurality of relatively arranged spring sheets 211 for clamping the male terminal 4 , and a plurality of bending protrusions 2111 are arranged along the extending direction of the spring sheets 211 , and the bending protrusions 2111 are arc surfaces with smooth transitions.
[0067] During actual use, one end of the male terminal 4 is inserted into the female terminal 2 , and the spring piece 211 in the female terminal 2 clamps the male terminal 4 and realizes electrical connection with the male terminal 4 .
[0068] In this specific embodiment, the bent protrusion 2111 is formed into a smoothly transitioned arc surface, which can facilitate the insertion and removal of the male terminal 4 between the two spring sheets 211, thereby avoiding scratches on the male terminal 4 by the spring sheets 211, and also avoiding the clamping force of the spring sheets 211 on the male terminal 4 being too strong to be convenient for insertion or removal.
[0069] like Figure 2 As shown, a plurality of spring sheets 211 are arranged in a square along the width of the main body 21 , and adjacent spring sheets 211 are spaced apart. In the actual setting process, the number of spring sheets 211 and the spacing between adjacent spring sheets 211 need to be determined according to actual conditions, which will not be elaborated here.
[0070] like Figure 3 As shown, the spring sheet 211 has a structure with a bending protrusion 2111, and the protruding height of the bending protrusion 2111 is related to the deformation amount of the spring sheet 211. During actual use, under the action of the elastic deformation of the spring sheet 211, the gap between the relatively arranged spring sheets 211 is variable, which can be suitable for clamping male terminals 4 of different thicknesses.
[0071] Depending on the actual situation, you can choose to use spring pieces 211 of different shapes or sizes, which is determined according to the specific situation and will not be described in detail here.
[0072] On the basis of the above embodiments, in order to more conveniently observe whether the female terminal 2 and the male terminal 4 are plugged into the appropriate position and electrically connected, a detection component and an indicator light can be set on the female terminal 2. The detection component is used to detect whether the male terminal 4 is plugged into the female terminal 2 and electrically connected. The indicator light is used to light up to prompt when the male terminal 4 and the female terminal 2 are plugged in and electrically connected.
[0073] Specifically, the detection member can be a pressure sensor, which is used to detect the pressure on the surface of the spring piece 211. When the pressure is within a preset range, it is determined that the male terminal 4 and the female terminal 2 are plugged in and in place and can be electrically connected; or, the detection member can also be set as a current detection member, which is used to detect whether there is a current passing through the connection between the male terminal 4 and the female terminal 2 to achieve a path; or, the detection member can also be set as a deformation detection member, which detects the deformation of the spring piece 211. When the deformation of the spring piece 211 is within a preset range, it is determined that the male terminal 4 and the female terminal 2 are plugged in and in place and can be electrically connected. Of course, the detection member can also be other detection structures that meet the requirements, which are determined according to actual conditions and will not be elaborated here.
[0074] When it is detected that the male terminal 4 and the female terminal 2 are plugged in and can be electrically connected, the detection part sends a signal to the relevant controller, and the controller controls the indicator light after receiving the signal; of course, it can also be that when it is detected that the male terminal 4 and the female terminal 2 are plugged in and can be electrically connected, the detection part sends a signal to the relevant controller, and the controller controls the indicator light to go out after receiving the signal, which is determined according to the actual situation. The staff can determine whether the male terminal 4 and the female terminal 2 are plugged in and can be electrically connected by observing whether the indicator light is on, which is conducive to timely discovering the situation where the male terminal 4 and the female terminal 2 are not plugged in properly, and can find problems in time for maintenance.
[0075] In addition to the above-mentioned connecting terminals, the present invention also provides an electronic device including several connecting terminals disclosed in the above-mentioned embodiments. For the structures of other parts of the electronic device, please refer to the prior art and will not be described in detail herein.
[0076] The electronic device mentioned in this specific embodiment may include one or more of the above-mentioned connection terminals to adapt to the situation of downward plug-in and large current; the specific method is determined according to the actual situation and will not be described in detail here.
[0077] In addition to the above-mentioned electronic devices, the present invention also provides a new energy vehicle including several electronic devices disclosed in the above-mentioned embodiments. For the structures of other parts of the new energy vehicle, please refer to the prior art and will not be described in detail herein.
[0078] Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referenced to each other. Any combination of all embodiments provided by the utility model is within the protection scope of this utility model and will not be described in detail here.
[0079] The connection terminal, electronic device and new energy vehicle provided by the utility model are introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.
Claims
1. A connecting terminal, characterized in that: include: A first circuit board (1); A second circuit board (3) located on the lower side of the first circuit board (1); A female terminal (2), comprising a main body (21) with an opening facing the first circuit board (1) and two connecting posts (22), wherein the two connecting posts (22) extend outwards from both sides of the main body (21) in a width direction; and the connecting posts (22) are inserted into the first circuit board (1) and electrically connected to the first circuit board (1); A male terminal (4) has one end connected to the second circuit board (3) and the other end passing through the first circuit board (1) and inserted into the female terminal (2) through the opening of the main body (21).
2. The connecting terminal according to claim 1, characterized in that: The connecting column (22) comprises an extension section (221) and a vertical section (222); along the width direction of the main body (21), the extension section (221) extends outward from the side of the main body (21); the vertical section (222) is connected to the extension section (221) and extends in the vertical direction; the vertical section (222) is plugged into the first circuit board (1).
3. The connecting terminal according to claim 2, characterized in that: An arc-shaped transition section is provided at the connection between the extension section (221) and the main body (21), and the arc-shaped transition section has both a component extending outwards along the width direction of the main body (21) and a component extending downwards along the vertical direction.
4. The connecting terminal according to claim 2, characterized in that: A guide member is provided at the opening of the main body (21); the guide member is arranged obliquely outward from the opening of the main body (21); Alternatively, the inner side surface of the extension section (221) is provided with a guiding inclined surface or a guiding curved surface for guiding.
5. The connecting terminal according to claim 1, characterized in that: The connecting column (22) and the main body (21) are an integrated structure.
6. The connecting terminal according to claim 1, characterized in that: The connecting column (22) is provided with a first limiting boss (23) for limiting the insertion depth of the connecting column (22) inserted into the first circuit board (1), and the first limiting boss (23) is provided with an outer peripheral side surface of the connecting column (22); And / or, a second limiting boss (41) for limiting the insertion depth of the male terminal (4) in the second circuit board (3) is provided at one end of the male terminal (4) close to the second circuit board (3).
7. The connecting terminal according to any one of claims 1 to 6, characterized in that: The main body (21) comprises a plurality of relatively arranged spring sheets (211) for clamping the male terminal (4), and a plurality of bent convex portions (2111) are arranged along the extension direction of the spring sheets (211), wherein the bent convex portions (2111) are arc surfaces with smooth transitions.
8. The connecting terminal according to any one of claims 1 to 6, characterized in that: The female terminal (2) is provided with a detection component and an indicator light, wherein the detection component is used to detect whether the male terminal (4) is plugged into the female terminal (2) and an electrical connection is achieved, and the indicator light is used to light up to indicate when the male terminal (4) and the female terminal (2) are plugged in and matched and an electrical connection is achieved.
9. An electronic device, characterized in that: The invention comprises a plurality of connecting terminals as claimed in any one of claims 1 to 8.
10. A new energy vehicle, characterized in that: The electronic device comprising the electronic device described in claim 9 above.