Terminal structure with stable clamping

Abstract

The utility model discloses a terminal structure with stable clamping. The terminal structure comprises a welding terminal, a connecting terminal and a clamping piece, elastic arms extend forwards from the front end of a clamping piece, the number of the elastic arms is two, the two elastic arms are arranged left and right, and each elastic arm is clamped on the outer side wall of the corresponding contact part; a clamping part corresponding to the clamping position is arranged at the front end of each elastic arm in a matched mode, and each clamping part drives the corresponding clamping position to clamp inwards; according to the utility model, the clamping piece is arranged on the connecting terminal, and the elastic force of the elastic arm on the clamping piece directly acts on the clamping position, so that the clamping force between the connecting terminal and the outside is improved, the increased clamping force not only can realize a large-current transmission process, but also is not easy to fall off from an external terminal even under the action of external force when being plugged with the outside, and the service life of the connecting terminal is prolonged. The stability of the transmission process is ensured, and the user experience is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the terminal field technology especially is a kind of terminal structure of clamping stability. BACKGROUND

[0002] The socket connector is widely used in electronic field to provide charge for electronic device. The large current terminal has the characteristics of safety and reliability, time saving and simple, high conductivity. The power connector for transmitting power generally includes socket connector and plug connector. The socket connector includes socket terminal, and the plug connector includes plug terminal. The current terminal is composed of two clamping pieces. When the plug-in terminal is inserted, the two clamping pieces clamp the plug-in terminal to realize conduction connection. The plug-in terminal is fixedly installed in the electrical connector by the clamping force between the clamping pieces, so as to ensure the stability of the connection between the electrical connectors.

[0003] The existing terminal structure is inserted with external terminal through the clamping force provided by its own elasticity. It can meet most of the use requirements. However, in some special scenarios, the existing terminal structure cannot realize the transmission of large current due to the limitation of its own clamping force. At the same time, it is easy to fall off with the external plug-in terminal under certain external force, thereby affecting the stability of the terminal insertion process and the user experience. Therefore, it is necessary to further improve the existing terminal structure. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides a kind of terminal structure of clamping stability to effectively solve the problems of insufficient clamping force of the existing terminal structure, inability to realize the transmission of large current and affect the stability of terminal insertion process.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] A kind of terminal structure of clamping stability, including welding terminal, connecting terminal and clamping piece;The welding terminal is welded with external PCB plate and is in conduction;The connecting terminal is arranged on external shell and is welded with welding terminal and is in conduction, and the connecting terminal includes main body part and the contact part that is integrally extended forward from the front end of main body part, and the contact part is two that are symmetrically arranged, and the front end of each contact part is inwardly recessed and formed with clamping position;The clamping piece is arranged on the connecting terminal, and the front end of clamping piece extends forward and has elastic arm, and the elastic arm is two that are arranged left and right, and each elastic arm is clamped on the outer side wall of corresponding contact part;The front end of each elastic arm has clamping part corresponding to clamping position, and each clamping part drives corresponding clamping position to clamp inward.

[0007] As a preferred solution, one of the contact parts is integrally outwardly bent from the upper and lower sides of the other contact part, and correspondingly, the contact parts on each side are two parts arranged in an upper and lower interval.

[0008] As a preferred solution, one of the elastic arms is integrally outwardly bent from the upper and lower sides of the other elastic arm.

[0009] As a preferred solution, the contact part is provided with two positioning holes arranged in an upper and lower interval, and the elastic arm is integrally inwardly bent to form a positioning part matched with the positioning hole.

[0010] As a preferred solution, the outer side wall of the clamping part is inwardly recessed to form a groove, and the clamping part acts on the corresponding groove.

[0011] As a preferred solution, the front end of each clamping part is integrally outwardly bent to form a guide part.

[0012] As a preferred solution, the welding terminal is formed with a first welding part, the main body part is formed with a second welding part corresponding to the first welding part, the connecting terminal is connected between the welding terminal through a soft connecting piece, and the two ends of the soft connecting piece are respectively welded and connected with the corresponding first welding part and second welding part.

[0013] The utility model discloses a connecting terminal has obvious advantages and beneficial effects compared with prior art, specifically speaking, from the above technical scheme can know that:

[0014] The front end of the clamping part extends outwardly to form an elastic arm, the elastic arm is provided with two parts arranged in a left and right direction, each elastic arm is clamped on the outer side wall of the corresponding contact part, and the front end of each elastic arm is provided with a clamping part corresponding to the clamping part, and each clamping part drives the corresponding clamping part to be inwardly clamped.

[0015] In order to more clearly set forth the structural features and functions of the utility model, the utility model will be described in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic diagram of the preferred embodiment of the utility model;

[0017] Figure 2is a preferred embodiment of the utility model of the exploded state schematic diagram;

[0018] Figure 3 is a preferred embodiment of the utility model of the local assembly schematic diagram;

[0019] Figure 4 is a preferred embodiment of the utility model of the terminal connecting end three-dimensional structure schematic diagram;

[0020] Figure 5 is a preferred embodiment of the utility model of the three-dimensional structure schematic diagram of the clamping piece.

[0021] The drawing mark explanation is as follows:

[0022] 10, welding terminal 11, first welding part

[0023] 20, connecting terminal 201, positioning hole

[0024] 202, groove 21, main body part

[0025] 22, contact part 23, clamping position

[0026] 24, guide part 25, second welding part

[0027] 30, clamping piece 31, elastic arm

[0028] 32, clamping part 33, positioning part

[0029] 40, soft connecting piece. Specific implementation

[0030] Please refer to Figures 1 to 5 It shows the specific structure of the preferred embodiment of the utility model, including welding terminal 10, connecting terminal 20 and clamping piece 30.

[0031] The welding terminal 10 is welded with the external PCB board and is in conduction, in the embodiment, the first welding part 11 is formed on the welding terminal 10.

[0032] The connecting terminal 20 is arranged on the outer shell and is welded in conduction with the welding terminal 10, and the connecting terminal 20 is connected in conduction with the inner PCB through the welding terminal 10; the connecting terminal 20 comprises a main body part 21 and a contact part 22 integrally extended forward from the front end of the main body part 21, and the contact part 22 is arranged in bilateral symmetry in two, and the front end of each contact part 22 is inwardly recessed to form a clamping site 23, and the connecting terminal 20 clamps the outer terminal through the clamping site 23, thereby realizing the plugging process with the outer terminal. In the embodiment, one of the contact parts 22 is integrally outwardly bent from the upper and lower sides of the other contact part 22 to form a corresponding contact part 22, and each side of the contact part 22 is arranged in two in upper and lower intervals; when torsion occurs in the plugging process, the contact surface of one of the contact parts 22 can be ensured to be attached to the outer terminal, thereby further ensuring the stability of the plugging process. The contact part 22 is provided with two positioning holes 201 arranged in upper and lower intervals. The outer side wall of the clamping site 23 is inwardly recessed to form a groove 202. The front end of each clamping site 23 is integrally outwardly bent to form a guide part 24, and the guide part 24 can facilitate the plugging process of the connecting terminal 20 and the outer terminal. The main body part 21 is formed with a second welding part 25 corresponding to the first welding part 11, and the connecting terminal 20 is connected in conduction between the welding terminal 10 and a soft connecting piece 40, and the two ends of the soft connecting piece 40 are welded in conduction with the corresponding first welding part 11 and second welding part 25, respectively. The arrangement of the soft connecting piece 40 enables the connecting terminal 20 and the welding terminal 10 to vibrate within a certain range in actual use, which can effectively avoid the falling of the welding part compared with the existing direct welding conduction mode, and the installation precision requirement of the welding terminal 10 and the connecting terminal 20 is also lower.

[0033] The clamping piece 30 is arranged on the connecting terminal 20, the front end of the clamping piece 30 extends forwardly to have two elastic arms 31 arranged left and right, each elastic arm 31 is clamped on the outer side wall of the corresponding contact part 22; the front end of each elastic arm 31 has a clamping part 32 corresponding to the clamping position 23, each clamping part 32 drives the corresponding clamping position 23 to be clamped inwardly, thereby improving the clamping force at the clamping position 23, not only the plugging process is more stable when plugging with the outside, so that it can transmit large current, but also it is not easy to fall off when receiving external force. In the embodiment, each clamping part 32 simultaneously acts on two clamping positions 23 arranged upward and downward. One elastic arm 31 is integrally bent outwardly from the upward and downward sides of the other elastic arm 31 to be split-molded, so that it can be molded by stamping and cutting the bent part, and the molding method is more convenient. The elastic arm 31 is integrally bent inwardly to have a positioning part 33 matched with the positioning hole 201, the positioning part 33 extends inwardly into the corresponding positioning hole 201, thereby realizing the positioning between the clamping piece 30 and the connecting terminal 20, preventing the clamping piece 30 from sliding forward and backward on the connecting terminal 20 or even falling off, and ensuring the stability of the overall structure. The clamping part 32 acts on the corresponding groove 202, the position of the clamping part 32 is limited by the groove 202, so that the elastic force of the clamping part 32 just acts on the clamping position 23, and the size of the elastic force is ensured.

[0034] The design focus of the utility model lies in: the front end of the clamping piece extends forwardly to have two elastic arms arranged left and right, each elastic arm is clamped on the outer side wall of the corresponding contact part; and the front end of each elastic arm has a clamping part corresponding to the clamping position, each clamping part drives the corresponding clamping position to be clamped inwardly; the elastic force of the elastic arm on the clamping piece directly acts on the clamping position, thereby improving the clamping force between the connecting terminal and the outside, the increased clamping force not only can realize the transmission process of large current, but also will not easily fall off from the external terminal when plugging with the outside, even if receiving external force, ensuring the stability of the transmission process and greatly improving the use experience of the user.

[0035] The above is only a preferred embodiment of the utility model, and does not limit the technical range of the utility model, so any slight modification, equivalent change and modification made according to the technical essence of the utility model to the above embodiment still belongs to the range of the technical scheme of the utility model.

Claims

1. A clamping-stable terminal structure, characterized by: The utility model provides a welding terminal, connecting terminal and clamping piece, the welding terminal is welded with external PCB board and is conducted, the connecting terminal is arranged on the external shell and is welded with the welding terminal and is conducted, the connecting terminal includes the main part and the contact part that the main part front end is integrated and extends out to the front, the contact part is two that the left and right symmetrical arrangement, and the front end of each contact part is inwards recessed and is formed with the clamping position, the clamping piece is arranged on the connecting terminal, and the front end of clamping piece extends out and has the elastic arm, and the elastic arm is two that the left and right settings, and each elastic arm clamps on the outer side wall of corresponding contact part, and the front end of each elastic arm has the clamping part that corresponds with the clamping position, and each clamping part drives corresponding clamping position to clamp inwards.

2. The clamp-stable terminal structure according to claim 1, characterized by: One contact part is integrally outwardly bent from the upper and lower sides of another contact part, and correspondingly, the contact part on each side is two that are arranged in an upper and lower interval.

3. The clamp-stable terminal structure according to claim 1, characterized by: One elastic arm is integrally outwardly bent and spliced from the upper and lower sides of another elastic arm.

4. The clamp-stable terminal structure according to claim 1, characterized by: The contact part is provided with two positioning holes arranged in an upper and lower interval, and the elastic arm is integrally inwardly bent to form a positioning part matched with the positioning hole.

5. The clamp-stable terminal structure according to claim 1, characterized by: The outer side wall of the clamping position is inwardly recessed to form a groove, and the clamping part acts on the corresponding groove.

6. The clamp-stable terminal structure according to claim 1, characterized by: The front end of each clamping position is integrally outwardly bent to form a guide part.

7. The clamp-stable terminal structure according to claim 1, characterized by: The welding terminal is provided with a first welding part, the main part is provided with a second welding part corresponding to the first welding part, the connecting terminal is connected with the welding terminal through a soft connecting piece, and the two ends of the soft connecting piece are welded with the corresponding first welding part and second welding part.

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