CN216214291U

CN216214291U - Elastic connecting terminal structure

Info

Publication number: CN216214291U
Application number: CN202122740031.9U
Authority: CN
Inventors: 谭世豪; 王鑫; 黄卫华
Original assignee: Shenzhen Jianke Electronics Co ltd
Current assignee: Shenzhen Jianke Electronics Co ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-04-05
Anticipated expiration: 2031-11-10

Abstract

The utility model discloses an elastic connecting terminal structure which comprises an elastic connecting terminal, a connector and a PCB, wherein the surface of the PCB is provided with the elastic connecting terminal, the other end of the elastic connecting terminal is connected with the connector through resistance welding, the surface of the PCB is provided with an installation block at the outer side of the elastic connecting terminal, the surface of the installation block is provided with a slot, and the insertion block is inserted into the slot. According to the utility model, the elastic connecting terminal is bent in a bow shape during design, so that the connecting terminal has certain elasticity, and then the elastic connecting terminal is subjected to resistance welding with the terminal on the connector after being soldered on the PCB, so that the stress concentration of resistance welding can be eliminated by the elastic flexible connection after resistance welding, the failure risk of resistance welding is reduced, the product stability is improved, the stress after welding can be perfectly eliminated by the elastic flexible connection after resistance welding, and the reliability of the electronic water pump is improved.

Description

Elastic connecting terminal structure

Technical Field

The utility model relates to the technical field of connectors, in particular to an elastic connecting terminal structure.

Background

Among the current electronic water pump, the electric connection mode of the overwhelming majority all is through connecting terminal and the mode interconnect of connecting terminal resistance welding, and the mode of direct connection terminal and the butt welding of direct connection terminal is adopted in current design.

The prior art has the following problems:

traditional elastic connection terminal structure is because there is the difference of position between the connecting terminal, and after resistance weld, there is stress to drag the solder joint, takes place the solder joint failure in long-time use easily, causes electric open circuit, and the water pump stops the operation.

We have therefore proposed a resilient connection terminal structure that addresses the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that after resistance welding is finished, welding spots are pulled by stress, the welding spots are easy to lose effectiveness in a long-time use process, electrical disconnection is caused, and a water pump stops running in the prior art, and provides an elastic connecting terminal structure.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides an elastic connecting terminal structure, includes elastic connection terminal, connector and PCB board, the surface of PCB board is equipped with elastic connection terminal, and elastic connection terminal's the other end is connected with the connector through resistance welding, the outside that the surface of PCB board is located elastic connection terminal is equipped with the installation piece, and the surface of installation piece has seted up the slot, the inside of slot is pegged graft and is had the inserted block, and the surface swing joint of inserted block has the movable rod, the both sides surface of inserted block has seted up flutedly, and the inner wall of recess has spacing spring through mounting panel fixed mounting to the other end of spacing spring passes through mounting panel and movable rod fixed connection, elastic connection terminal's the outside is equipped with the protection casing, the top surface of inserted block and the bottom surface fixed connection of protection casing.

Preferably, the top surface of the protection cover is fixedly provided with a protrusion, and the length of the protrusion is smaller than that of the protection cover.

Preferably, the material of protection casing is PE, and the protection casing is cavity type cuboid structure.

Preferably, the elastic connection terminals are provided in plurality, and the plurality of elastic connection terminals are equidistantly distributed on the surface of the PCB.

Preferably, the movable rod is symmetrically provided with two about the vertical central line of the inserting block, and the material of the two inserting blocks is the same as that of the protective cover.

Preferably, the height of the mounting block is greater than that of the insertion block, and the width of the insertion block is smaller than that of the slot.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the elastic connecting terminal is bent in a bow shape during design, so that the connecting terminal has certain elasticity, and then the elastic connecting terminal is subjected to resistance welding with the terminal on the connector after being soldered on the PCB, so that the stress concentration of resistance welding can be eliminated by the elastic flexible connection after resistance welding, the failure risk of resistance welding is reduced, the product stability is improved, the stress after welding can be perfectly eliminated by the elastic flexible connection after resistance welding, and the reliability of the electronic water pump is improved.

2. According to the utility model, the protective cover, the mounting block, the slot, the inserting block, the limiting spring, the movable rod and the groove are matched with each other, and the protective cover and the mounting block can be fixed by inserting the inserting block into the slot, so that the effect of shielding the elastic connecting terminal can be achieved, and the dustproof and waterproof capabilities of the elastic connecting terminal are improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a cross-sectional view of an elastic connection terminal structure according to the present invention;

FIG. 2 is an enlarged view of the elastic connection terminal structure of the present invention at A;

FIG. 3 is a side view of a plug of an elastic connection terminal structure according to the present invention;

FIG. 4 is a schematic diagram of a protective cover of an elastic connection terminal structure according to the present invention;

fig. 5 is a schematic diagram of an elastic connection terminal structure according to an embodiment of the present invention.

Illustration of the drawings:

1. an elastic connection terminal; 2. a connector; 3. a PCB board; 4. resistance welding; 5. a protective cover; 6. mounting blocks; 7. a slot; 8. inserting a block; 9. a limiting spring; 10. a movable rod; 11. a groove; 12. and (4) protruding.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, an elastic connection terminal structure includes an elastic connection terminal 1, a connector 2 and a PCB 3, the surface of the PCB 3 is provided with the elastic connection terminal 1, and the other end of the elastic connection terminal 1 is connected with the connector 2 through a resistance welding 4, the elastic connection terminal 1 is bent in a bow shape during design to make the connection terminal have a certain elasticity, then the elastic connection terminal 1 is soldered on the PCB 3 and is welded with a terminal resistance welding 4 on the connector 2, the elastic soft connection after the resistance welding 4 is welded can eliminate stress concentration of the resistance welding 4, reduce failure risk of the resistance welding 4, improve product stability, and the elastic soft connection after the resistance welding 4 can perfectly eliminate stress after welding, improve reliability of an electronic water pump, the surface of the PCB 3 is provided with an installation block 6 at the outer side of the elastic connection terminal 1, and slot 7 has been seted up on the surface of installation piece 6, it has inserted block 8 to peg graft in slot 7's inside, and the surperficial swing joint of inserted block 8 has movable rod 10, recess 11 is seted up on the both sides surface of inserted block 8, and the inner wall of recess 11 has spacing spring 9 through mounting panel fixed mounting, and mounting panel and movable rod 10 fixed connection are passed through to spacing spring 9's the other end, elastic connection terminal 1's the outside is equipped with protection casing 5, the top surface of inserted block 8 and protection casing 5's bottom surface fixed connection, through pegging graft inserted block 8 in slot 7, can fix protection casing 5 and installation piece 6, thereby can play the effect of sheltering from to elastic connection terminal 1, thereby improve elastic connection terminal 1's dustproof, waterproof capacity.

In this embodiment: the top surface of the protection cover 5 is fixedly provided with a bulge 12, and the length of the bulge 12 is less than that of the protection cover 5.

Specifically, the protection casing 5 is convenient for an installer to take.

In this embodiment: the protection cover 5 is made of PE, and the protection cover 5 is of a hollow cuboid structure.

In particular, the method has the advantages of stable chemical property and no corrosion.

In this embodiment: the elastic connection terminals 1 are provided in plurality, and the plurality of elastic connection terminals 1 are equidistantly distributed on the surface of the PCB board 3.

Specifically, it is convenient to fix the plurality of elastic connection terminals 1 to the surface of the PCB board 3.

In this embodiment: two movable rods 10 are symmetrically arranged about the vertical central line of the insertion block 8, and the material of the two insertion blocks 8 is the same as that of the protective cover 5.

Specifically, the stability of the protection cover 5 fixed with the mounting block 6 is improved, and falling off is avoided.

In this embodiment: the height of the mounting block 6 is greater than that of the insertion block 8, and the width of the insertion block 8 is smaller than that of the slot 7.

In particular, the insertion block 8 is convenient to be inserted into the slot 7.

The working principle is as follows: during the use, bend through carrying out one section bow-shaped with elastic connection terminal 1 when the design, make connecting terminal have certain elasticity, then after welding elastic connection terminal 1 tin on PCB board 3, with the terminal resistance welding 4 welding on connector 2, 4 welded elastic flexible coupling of resistance welding can eliminate 4 welded stress concentrations of resistance welding, reduce 4 inefficacy risks of resistance welding, improve product stability, and the elastic flexible coupling can perfect elimination stress after the welding after 4 welding of resistance welding, improve electronic water pump's reliability, secondly through pegging graft in slot 7 with inserted block 8, can fix protection casing 5 and installation piece 6, thereby can play the effect of sheltering from to elastic connection terminal 1, thereby improve elastic connection terminal 1's dustproof, waterproof ability.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. An elastic connecting terminal structure comprises an elastic connecting terminal (1), a connector (2) and a PCB (3), and is characterized in that the surface of the PCB (3) is provided with the elastic connecting terminal (1), the other end of the elastic connecting terminal (1) is connected with the connector (2) through a resistance welding (4), the surface of the PCB (3) is positioned at the outer side of the elastic connecting terminal (1) and is provided with a mounting block (6), the surface of the mounting block (6) is provided with a slot (7), the inside of the slot (7) is inserted with an insertion block (8), the surface of the insertion block (8) is movably connected with a movable rod (10), the surfaces of the two sides of the insertion block (8) are provided with grooves (11), the inner wall of the groove (11) is fixedly provided with a limiting spring (9) through a mounting plate, and the other end of the limiting spring (9) is fixedly connected with the movable rod (10) through the mounting plate, the outside of elastic connection terminal (1) is equipped with protection casing (5), the top surface of inserted block (8) and the bottom surface fixed connection of protection casing (5).

2. A resilient connecting terminal structure according to claim 1, wherein the top surface of the protecting cover (5) is fixedly provided with a projection (12), and the length of the projection (12) is smaller than the length of the protecting cover (5).

3. A resilient connecting terminal structure according to claim 1, wherein the protective cover (5) is made of PE and the protective cover (5) is of hollow cuboid structure.

4. A resilient connecting terminal structure according to claim 1, characterized in that the resilient connecting terminals (1) are provided in plurality and the plurality of resilient connecting terminals (1) are equally spaced on the surface of the PCB board (3).

5. An elastic connection terminal structure according to claim 1, wherein two movable rods (10) are provided symmetrically with respect to the vertical center line of the insertion block (8), and the two insertion blocks (8) are made of the same material as the shield (5).

6. A resilient connecting terminal structure according to claim 1, characterized in that the height of the mounting block (6) is greater than the height of the insert block (8) and the width of the insert block (8) is smaller than the width of the slot (7).