Welding-free connector

Abstract

The utility model relates to a welding-free connector which comprises a connecting seat, and the connecting seat is provided with a mounting hole and an extending groove which are communicated with each other. The connecting terminal comprises a terminal main body and a connecting arm which are connected with each other, the terminal main body is arranged in the mounting hole, and the connecting arm extends out of the connecting seat from the extending groove; wherein the connecting arm is provided with an elastic clamping part, the elastic clamping part has a folded state and an external expansion state, and after the elastic clamping part in the folded state is inserted into a connecting hole of the control panel, the elastic clamping part can be deformed into the external expansion state from the folded state under the action of extrusion force; and the elastic clamping part can be clamped and fixed with the control plate. Therefore, special welding equipment is omitted, the equipment and processing cost is reduced, meanwhile, the installation operation is more convenient, faster and labor-saving, the difficulty is greatly reduced, and in addition, the hidden danger that the reliability of the electrical connection performance of the welding-free connector is reduced due to poor welding quality can be eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicles, and in particular to a solder-free connector. Background Art

[0002] With the sharp increase in the output of new energy vehicles, the process of automotive intelligent upgrading is also constantly advancing. The solderless connectors of key components play a vital role as the hub of signal or energy transmission. The assembled solderless connectors are required to have excellent contact performance. At the same time, in order to meet the needs of mass production, the manufacturing and installation of solderless connectors need to be convenient and labor-saving.

[0003] In the related art, the terminals of the solderless connector are usually installed and fixed to the control board using a welding process, which not only requires special welding equipment, resulting in high equipment and processing costs, but also the welding process is difficult to operate, time-consuming and labor-intensive. The welding quality has a great impact on the connection quality between the solderless connector and the control board, thereby affecting the electrical connection reliability of the solderless connector. Summary of the invention

[0004] The utility model aims to provide a solder-free connector, which is used to solve the problems of high soldering and installation cost, difficult operation and poor electrical connection reliability in the prior art.

[0005] According to one aspect of the utility model, there is provided a solder-free connector, comprising:

[0006] A connecting seat, wherein the connecting seat is provided with a connecting hole and a extending groove that are connected to each other; and

[0007] A connecting terminal, the connecting terminal comprising a terminal body and a connecting arm connected to each other, the terminal body being arranged in the mounting hole, and the connecting arm extending from the extending groove to the outside of the connecting seat;

[0008] Among them, the connecting arm has an elastic clamping part, and the elastic clamping part has a retracted state and an outwardly expanded state. After the elastic clamping part in the retracted state is inserted into the connecting hole of the control board, the elastic clamping part can be deformed from the retracted state to the outwardly expanded state when subjected to the extrusion force, so that the elastic clamping part can be clamped and fixed with the control board.

[0009] In one embodiment, the extension groove is formed on the bottom surface of the connecting base.

[0010] In one embodiment, the connecting arm includes a first elastic clamping arm and a second elastic clamping arm, the first elastic clamping arm is provided with a first arc-shaped clamping portion that is bent and protruded away from the second elastic clamping arm, and the second elastic clamping arm is provided with a second arc-shaped clamping portion that is bent and protruded away from the first elastic clamping arm, and the first arc-shaped clamping portion and the second arc-shaped clamping portion cooperate to form the elastic clamping portion.

[0011] In one embodiment, the connecting arm further includes a constraint body, one end of the constraint body is connected to an end of the first elastic clamp arm away from the terminal body, and the other end of the constraint body is connected to an end of the second elastic clamp arm away from the terminal body.

[0012] In one embodiment, the terminal body is provided with a first clamping portion, and the first clamping portion is used to clamp the wire core of the connecting wire.

[0013] In one of the embodiments, the terminal body is further provided with a second clamping portion, the second clamping portion and the first clamping portion are arranged at intervals along the length direction of the terminal body, and the second clamping portion is used to clamp the protective rubber sleeve of the connecting wire.

[0014] In one of the embodiments, the terminal body is further provided with a support arm, and the end of the support arm is in sliding contact with the hole wall of the mounting hole.

[0015] In one of the embodiments, the terminal body is further provided with a positioning plate, and a stop block is protruding from the hole wall of the mounting hole. When the terminal body is installed in a preset position in the mounting hole, the positioning plate abuts against the stop block.

[0016] In one of the embodiments, the terminal body is also provided with a clamping plate, the clamping plate is provided with a clamping tongue, and the connecting seat is provided with a fixing plate surrounding the mounting hole. When the terminal body is inserted into a preset position in the mounting hole, the clamping tongue is clamped and fixed to one end of the fixing plate away from the opening of the mounting hole.

[0017] In one of the embodiments, the side wall of the fixing plate used to enclose the mounting hole is provided with an avoidance slope, and when the terminal body is slidably installed into the mounting hole, the latch tongue slidably cooperates with the avoidance slope.

[0018] Implementing the embodiments of the present utility model will have the following beneficial effects:

[0019] The solderless connector of the present scheme is used for assembly with a control board. Specifically, a connection hole is opened that runs through its thickness direction. First, the terminal body of the connecting terminal is inserted into the mounting hole of the connecting seat so that the connecting arm extends from the extension groove to the outside of the connecting seat, and at this time, the elastic clamping portion of the connecting arm is in a retracted state. Then, the connecting arm is aligned and inserted into the connecting hole of the control board. The elastic clamping portion can smoothly pass through the connecting hole and cross from one side of the control board to the other side until the end of the connecting arm away from the terminal body hits the mounting platform. At this time, the solderless connector is further pressed downward. Since the pressing force is greater than the strength of the elastic clamping portion, the elastic clamping portion can be forced to deform to change from the retracted state to the outward expansion state. Since the size of the elastic clamping portion in the outward expansion state is greater than the aperture of the connecting hole, it can be clamped with the other side of the control board, thereby completing the clamping operation of the solderless connector and the control board. Compared with the welding installation method in the prior art, it eliminates the need for special welding equipment, reduces equipment and processing costs, and at the same time, the installation operation is more convenient, quick and labor-saving, and the difficulty is greatly reduced. In addition, it can also eliminate the hidden danger of reduced reliability of the electrical connection performance of the solderless connector due to poor welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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 described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is an assembly structure diagram of a solder-free connector according to an embodiment;

[0022] Figure 2 for Figure 1 Exploded structure diagram of the solder-free connector;

[0023] Figure 3 for Figure 1 The side view of the structure;

[0024] Figure 4 for Figure 1 A top view of the structure;

[0025] Figure 5 This is a partial exploded structural diagram of the solderless connector;

[0026] Figure 6 FIG. 4 is a schematic structural diagram of a connecting terminal according to an embodiment.

[0027] in:

[0028] 10. Solderless connector; 11. Connecting seat; 111. Mounting hole; 112. Extending groove; 113. Stop block; 114. Fixing plate; 114a. Avoiding slope; 12. Connecting terminal; 121. Terminal body; 121a. First hoop connection part; 121b. Second hoop connection part; 121c. Support arm; 121d. Positioning plate; 121e. Clamping plate; 1211e. Clamping tongue; 122. Connecting arm; 1221. First elastic clamping arm; 1222. Second elastic clamping arm; 122a. Elastic clamping part; 1221a. First arc-shaped clamping part; 1222a. Second arc-shaped clamping part; 1223. Constraint body. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0032] Please refer to Figures 1 to 6 , is a solder-free connector 10 described in an embodiment, which includes a connecting seat 11 and a connecting terminal 12. The connecting seat 11 is provided with a connecting hole 111 and an extending groove 112 that are connected to each other; the connecting terminal 12 includes a terminal body 121 and a connecting arm 122 that are connected to each other. The terminal body 121 is arranged in the mounting hole 111, and the connecting arm 122 extends from the extending groove 112 to the outside of the connecting seat 11.

[0033] Furthermore, the connection base 11 is provided with a plurality of mounting holes 111 and a plurality of extension slots 112. The connection base 11 is in a rectangular box shape. The plurality of mounting holes 111 are arranged side by side along the length direction of the connection base 11. The extension slots 112 are arranged one by one with the mounting holes 111. Accordingly, the connection terminals 12 are also provided in plurality, and each connection terminal 12 is assembled with a corresponding set of mounting holes 111 and extension slots 112. In this way, the plurality of connection arms 122 extending from the connection base 11 are assembled with the control board at the same time, thereby greatly improving the reliability and firmness of the electrical connection.

[0034] Among them, the connecting arm 122 has an elastic clamping portion 122a, and the elastic clamping portion 122a has a retracted state and an expanded state. After the elastic clamping portion 122a in the retracted state is inserted into the connecting hole of the control board, the elastic clamping portion 122a can be deformed from the retracted state to the expanded state when subjected to the extrusion force, so that the elastic clamping portion 122a can be clamped and fixed with the control board.

[0035] The implementation of the embodiment of the utility model will have the following beneficial effects: the solder-free connector 10 of the present scheme is used for assembly with a control board, and specifically, a connection hole is provided through the thickness direction thereof. First, the terminal body 121 of the connecting terminal 12 is inserted into the mounting hole 111 of the connecting seat 11, so that the connecting arm 122 extends from the extending groove 112 to the outside of the connecting seat 11, and at this time, the elastic clamping portion 122a of the connecting arm 122 is in a retracted state, and then the connecting arm 122 is aligned and inserted into the connecting hole of the control board, and the elastic clamping portion 122a can be smoothly inserted into the connecting hole of the control board. It passes through the connecting hole and crosses from one side of the control board to the other side until the end of the connecting arm 122 away from the terminal body 121 hits the mounting platform. At this time, the solderless connector 10 is further pressed downward. Since the pressing force is greater than the strength of the elastic clamping portion 122a, the elastic clamping portion 122a can be forced to deform and change from a retracted state to an expanded state. Since the size of the elastic clamping portion 122a in the expanded state is greater than the aperture of the connecting hole, it can be clamped with the other side of the control board, thereby completing the clamping operation of the solderless connector 10 and the control board.

[0036] Compared with the welding installation method in the prior art, it eliminates the need for special welding equipment, reduces equipment and processing costs, and makes the installation operation more convenient, quick and labor-saving, and the difficulty is greatly reduced. In addition, it can also eliminate the hidden danger of reduced reliability of the electrical connection performance of the solderless connector 10 due to poor welding quality.

[0037] The connecting terminal 12 is preferably made of copper material, so that the copper elastic clamping portion 122a has excellent plastic deformation ability, ensuring that the elastic clamping portion 122a deformed into an outwardly expanded state can be reliably and permanently clamped and fixed to the board surface of the control board.

[0038] like Figure 1, Figure 2 and Figure 5 In an optional embodiment, the extension groove 112 is formed on the bottom surface of the connection seat 11. When the solderless connector 10 is assembled with the control board, the control board is first placed flat on the mounting table with the connection hole located in the vertical direction. Since the extension groove 112 is provided on the bottom surface of the connection seat 11, that is, the connecting arm 122 can extend from the bottom surface of the connection seat 11, in this way, it is only necessary to place the connection seat 11 from top to bottom on the control board, and the connecting arm 122 will be inserted into the connection hole, and only a slight downward pressure is required to force the elastic clamping portion 122a to plastically deform from the retracted state to the outward expanded state and be clamped and fixed with the control board, which greatly simplifies the installation steps of the solderless connector 10 and reduces the difficulty of assembling the solderless connector 10 with the control board.

[0039] Optionally, the edge of the hole opening of the connection hole is provided with a chamfer, a rounded corner or the like, which is used as an introduction structure to make it easier for the connection arm 122 to be inserted into the connection hole.

[0040] like Figure 3 As shown, further, the connecting arm 122 includes a first elastic clamping arm 1221 and a second elastic clamping arm 1222. The first elastic clamping arm 1221 is provided with a first arc-shaped clamping portion 1221a that is bent and protruded away from the second elastic clamping arm 1222. The second elastic clamping arm 1222 is provided with a second arc-shaped clamping portion 1222a that is bent and protruded away from the first elastic clamping arm 1221. The first arc-shaped clamping portion 1221a and the second arc-shaped clamping portion 1222a cooperate to form an elastic clamping portion 122a.

[0041] When the connecting arm 122 is subjected to the extrusion force, the first arc-shaped clamping part 1221a and the second arc-shaped clamping part 1222a, which are bent and protruded, are more likely to undergo plastic deformation in the outer direction away from each other. At this time, the curvature of the first arc-shaped clamping part 1221a and the second arc-shaped clamping part 1222a is reduced from large to make the elastic clamping part 122a form an outward expansion state with a larger lateral size. The size of the elastic clamping part 122a is larger than the aperture of the connecting hole and can be clamped with the other side of the control board, so as to achieve the effect of fixing the solder-free connector 10 on the control board. At the same time, the connecting arm 122 is also in contact with the hole wall of the connecting hole and is electrically conductive, meeting the requirements of the electrical connection between the solder-free connector 10 and the control board.

[0042] In addition, the connecting arm 122 further includes a constraint body 1223, one end of which is connected to one end of the first elastic clamp arm 1221 away from the terminal body 121, and the other end of which is connected to one end of the second elastic clamp arm 1222 away from the terminal body 121. The constraint body 1223 is connected to the ends of the first elastic clamp arm 1221 and the second elastic clamp arm 1222 at the same time, which helps to enhance the connection strength of the first elastic clamp arm 1221 and the second elastic clamp arm 1222, and avoids the first arc-shaped clamping portion 1221a and the second arc-shaped clamping portion 1222a from being unable to perform regular plastic expansion deformation when subjected to pressure, thereby affecting the connection quality; and the constraint body 1223 connects the first elastic clamp arm 1221 and the second elastic clamp arm 1222 as a whole, and the first elastic clamp arm 1221 and the second elastic clamp arm 1222 can form mutual support, thereby improving the clamping reliability and durability of the elastic clamping portion 122a and the control board.

[0043] During actual installation, the connection terminal 12 must first be connected to the connection wire as a whole, and then the connection terminal 12 is assembled with the connection seat 11. In one embodiment, the terminal body 121 is provided with a first clamping portion 121a, and the first clamping portion 121a is used to clamp the wire core of the connection wire. Further, the terminal body 121 is also provided with a second clamping portion 121b, and the second clamping portion 121b and the first clamping portion 121a are arranged at intervals along the length direction of the terminal body 121, and the second clamping portion 121b is used to clamp the protective rubber sleeve of the connection wire.

[0044] Therefore, the first clamping portion 121a and the second clamping portion 121b can form a two-way clamping structure with the connecting wire, thereby helping to greatly improve the connection strength and pull-out resistance of the connecting terminal 12 and the connecting wire.

[0045] The first clamping part 121a and the second clamping part 121b are both composed of two arc-shaped clamping pieces arranged opposite to each other. The two arc-shaped clamping pieces and the main part of the terminal body 121 form a clamping cavity. When the connecting wire is inserted into the clamping cavity, the arc-shaped clamping piece is closed to tighten the connecting wire.

[0046] like Figure 5 and Figure 6 As shown, in another optional embodiment, the terminal body 121 is further provided with a support arm 121c, and the end of the support arm 121c is in sliding contact with the hole wall of the mounting hole 111. The support arm 121c adopts a cantilever mounting structure. When the terminal body 121 is slidably installed into the mounting hole 111, the end of the support arm 121c continues to slide against the hole wall of the mounting hole 111 to form a guiding support and limiting effect on the connecting terminal 12, ensuring that the terminal body 121 slides smoothly and is installed smoothly, and preventing the terminal body 121 from deflecting and shaking and causing a jam.

[0047] Furthermore, the terminal body 121 is further provided with a positioning plate 121d, and a stop block 113 is protruded from the hole wall of the mounting hole 111. When the terminal body 121 is installed in a preset position in the mounting hole 111, the positioning plate 121d abuts against the stop block 113, so as to realize the installation and positioning of the connecting terminal 12 in the connecting seat 11.

[0048] In addition, in another embodiment, the terminal body 121 is further provided with a clamping plate 121e, the clamping plate 121e is provided with a clamping tongue 1211e, the connection seat 11 is provided with a fixing plate 114 surrounding the mounting hole 111, and when the terminal body 121 is installed in a preset position in the mounting hole 111, the clamping tongue 1211e is clamped and fixed with an end of the fixing plate 114 away from the opening of the mounting hole 111. This prevents the terminal body 121 from loosening and falling out of the mounting hole 111, affecting the normal connection between the solder-free connector 10 and the controller.

[0049] The side wall of the fixing plate 114 used to enclose the mounting hole 111 is provided with an avoidance slope 114a, and the latch tongue 1211e is slidably matched with the avoidance slope 114a during the process of the terminal body 121 slidingly inserted into the mounting hole 111. Therefore, the avoidance slope 114a is used to avoid blocking the latch tongue 1211e from sliding through the mounting hole 111, and to allow the latch tongue 1211e to produce a small elastic deformation, so that when the latch tongue 1211e reaches the end of the fixing plate 114, it can automatically rebound and reset to be fixed with the end of the fixing plate 114.

[0050] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent application. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A solder-free connector, characterized in that: include: A connecting seat, wherein the connecting seat is provided with a connecting hole and a extending groove; and A connecting terminal, the connecting terminal comprising a terminal body and a connecting arm connected to each other, the terminal body being arranged in the mounting hole, and the connecting arm extending from the extending groove to the outside of the connecting seat; Among them, the connecting arm has an elastic clamping part, and the elastic clamping part has a retracted state and an outwardly expanded state. After the elastic clamping part in the retracted state is inserted into the connecting hole of the control board, the elastic clamping part can be deformed from the retracted state to the outwardly expanded state when subjected to the extrusion force, so that the elastic clamping part can be clamped and fixed with the control board.

2. The solder-free connector according to claim 1, characterized in that: The extension groove is formed on the bottom surface of the connecting seat.

3. The solder-free connector according to claim 1, characterized in that: The connecting arm includes a first elastic clamping arm and a second elastic clamping arm, the first elastic clamping arm is provided with a first arc-shaped clamping portion that is bent and protruded away from the second elastic clamping arm, the second elastic clamping arm is provided with a second arc-shaped clamping portion that is bent and protruded away from the first elastic clamping arm, the first arc-shaped clamping portion and the second arc-shaped clamping portion cooperate to form the elastic clamping portion.

4. The solder-free connector according to claim 3, characterized in that: The connecting arm further comprises a restraining body, one end of which is connected to an end of the first elastic clamping arm away from the terminal body, and the other end of which is connected to an end of the second elastic clamping arm away from the terminal body.

5. The solder-free connector according to claim 1, characterized in that: The terminal body is provided with a first clamping portion, and the first clamping portion is used to clamp the wire core of the connecting wire.

6. The solder-free connector according to claim 5, characterized in that: The terminal body is further provided with a second clamping portion, which is arranged at intervals with the first clamping portion along the length direction of the terminal body, and the second clamping portion is used to clamp the protective rubber sleeve of the connecting wire.

7. The solder-free connector according to claim 1, characterized in that: The terminal body is also provided with a support arm, and the end of the support arm is in sliding contact with the hole wall of the mounting hole.

8. The solder-free connector according to claim 1, characterized in that: The terminal body is further provided with a positioning plate, and a stop block is protruding from the hole wall of the mounting hole. When the terminal body is installed in a preset position in the mounting hole, the positioning plate abuts against the stop block.

9. The solder-free connector according to claim 1, characterized in that: The terminal body is also provided with a clamping plate, and the clamping plate is provided with a clamping tongue. The connecting seat is provided with a fixing plate surrounding the mounting hole. When the terminal body is installed into a preset position in the mounting hole, the clamping tongue is clamped and fixed to one end of the fixing plate away from the opening of the mounting hole.

10. The solder-free connector according to claim 9, characterized in that: The side wall of the fixing plate used to surround the mounting hole is provided with an avoidance slope, and during the process of the terminal body being slidably installed into the mounting hole, the latch tongue slidably cooperates with the avoidance slope.

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