Shock-resistant terminal for automobile

Abstract

The utility model discloses a terminal for car of shock resistance, it includes integrative top plate, first side plate, bottom plate and second side plate of connection, the top plate, first side plate, bottom plate and second side plate are surrounded and are formed with the plug-in cavity, the front side of top plate extends and has first elastic contact part, and first elastic contact part goes into the plug-in cavity, and first elastic contact part has first outer contact point, and first elastic contact part is wavy, the front side of bottom plate extends and has second elastic contact part, and second elastic contact part goes into the plug-in cavity, and second elastic contact part has second outer contact point, and second elastic contact part is wavy, the rear end of first side plate and second side plate all extends and has the welding part to the back, and the welding part is cylindrical, and the second side plate has first fixed part and second fixed part, and first fixed part is connected fixed with second fixed part cooperation.

Description

Technical Field

[0001] This utility model relates to the field of terminals, and in particular to a vibration-resistant automotive terminal. Background Technology

[0002] Terminals are an important component of connectors, serving as the wiring terminations used to transmit electrical signals or conduct electricity in electrical connections. They are commonly found in the connection of batteries, wires, and equipment. Structurally, they can be categorized into single-hole, double-hole, socket, and hook types, and materials include copper, aluminum, iron, and their alloy platings, such as silver-plated copper and zinc-plated copper. Their core function is to achieve circuit connection, ensuring stability through screw fixing, welding, or crimping processes. They are widely used in home appliances, automobiles, power equipment, and new energy fields.

[0003] With the development of new energy vehicles, their functions are becoming increasingly diversified, requiring numerous connectors for the connection of various modules. Therefore, the requirements for connectors in new energy vehicles are becoming increasingly stringent. Furthermore, due to the continuous vibration generated during vehicle startup or operation, prolonged vibration can easily cause instability in the contact between the connector terminals and external plugs, leading to the solder joints of the terminals detaching from the solder and causing some functions of the new energy vehicle to malfunction. Therefore, it is necessary to improve existing automotive connector terminals. Utility Model Content

[0004] In view of this, the present invention addresses the deficiencies of the existing technology, and its main objective is to provide a vibration-resistant automotive terminal that can effectively solve the problems of unstable terminal contact and easy detachment of the terminal's solder feet from the solder under continuous vibration in existing automotive connector terminals.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A vibration-resistant automotive terminal includes an integrally formed top plate, a bottom plate, a first side plate, and a second side plate; the top plate, bottom plate, first side plate, and second side plate form a socket cavity; a first elastic contact portion extends from the front side of the top plate, the first elastic contact portion extends into the socket cavity, the first elastic contact portion has a first external contact point, and the first elastic contact portion is wavy; a second elastic contact portion extends from the front side of the bottom plate, the second elastic contact portion extends into the socket cavity, the second elastic contact portion has a second external contact point, and the second elastic contact portion is wavy; the rear ends of the first side plate and the second side plate each extend rearward with a welding portion, the welding portion being cylindrical; the second side plate has a first fixing portion and a second fixing portion, the first fixing portion and the second fixing portion cooperating to connect and fix.

[0007] As a preferred embodiment, the first fixing part is a slot, and the second fixing part is a buckle. The slot and the buckle engage with each other and are fixed together by laser welding.

[0008] As a preferred embodiment, the slot is a dovetail groove, and the buckle is a dovetail buckle. The dovetail groove and the dovetail buckle are engaged and fixed together by laser welding. The first fixing part and the second fixing part are more firmly and reliably matched, and the laser welding can further strengthen them and prevent them from falling off.

[0009] As a preferred embodiment, the first external contact point is a plurality of points arranged at intervals, and correspondingly, the second external contact point is also a plurality of points arranged at intervals. The multi-point contact design makes it easier for current to pass through and the contact tends to be more stable.

[0010] As a preferred embodiment, the first elastic contact portion further has a first inner contact point, which is a plurality of points arranged at intervals from front to back. The second elastic contact portion further has a second inner contact point, which is also a plurality of points arranged at intervals from front to back. When the first outer contact point, the second outer contact point, and the external plug-in portion are in contact and connected, both the first elastic contact portion and the second elastic contact portion undergo elastic deformation, so that the first inner contact point and the second inner contact point are in contact and connected with the inner wall surface of the plug-in cavity. The first inner contact point and the second inner contact point can provide an additional path for current to pass through, so that the terminal can carry a larger current.

[0011] As a preferred embodiment, the plurality of first outer contact points and the plurality of first inner contact points are arranged alternately on the first elastic contact portion; the plurality of second outer contact points and the plurality of second inner contact points are arranged alternately on the second elastic contact portion.

[0012] As a preferred embodiment, the inner wall surface of the insertion cavity is provided with a protrusion for making contact and conducting with the first inner contact point or the second inner contact point.

[0013] As a preferred embodiment, the welding part has a hollow cavity, and a slot is formed on the peripheral side of the welding part. The slot is connected to the hollow cavity. When the welding part is soldered, the molten solder can flow into the hollow cavity through the slot, which effectively increases the contact area between the welding part and the solder, making the welding of the welding part more firm and reliable.

[0014] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0015] By adopting an elastic contact design, the terminal contact part can maintain stable contact with the external plug part under continuous vibration. In addition, the cylindrical shape of the solder part effectively increases the contact area between the solder part and the solder, making the solder part more solid and reliable after soldering, and less likely to detach from the solder.

[0016] To more clearly illustrate the structural features and effects of this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments: Attached Figure Description

[0017] Figure 1 This is a perspective view of a preferred embodiment of the present utility model;

[0018] Figure 2 This is a perspective view of another preferred embodiment of the present invention;

[0019] Figure 3 This is a cross-sectional view of a preferred embodiment of the present invention.

[0020] Explanation of reference numerals in the attached diagram:

[0021] 10. Top plate; 11. First elastic contact part

[0022] 111. First outer contact point; 112. First inner contact point

[0023] 20. Base plate; 21. Second elastic contact part

[0024] 211. Second outer contact point; 212. Second inner contact point

[0025] 30. First side panel; 40. Second side panel

[0026] 41. First fixing part; 42. Second fixing part

[0027] 50. Insertion cavity 51. Protrusion

[0028] 60. Welding section; 61. Hollow cavity

[0029] 62. Empty slot. Detailed Implementation

[0030] Please refer to Figures 1 to 3 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including an integrally formed top plate 10, bottom plate 20, first side plate 30, and second side plate 40, which together form an insertion cavity 50.

[0031] The top plate 10 has a first elastic contact portion 11 extending from its front side, which extends into the insertion cavity 50. The first elastic contact portion 11 has a first outer contact point 111 and is wavy. The bottom plate 20 has a second elastic contact portion 21 extending from its front side, which also extends into the insertion cavity 50. The second elastic contact portion 21 has a second outer contact point 211 and is wavy. In this embodiment, multiple first outer contact points 111 are arranged at intervals, and multiple second outer contact points 211 are also arranged at intervals. This multi-point contact design makes it easier for current to pass through and the contact more stable. The first elastic contact portion 11 also has multiple first inner contact points 112, which are arranged at intervals. The second elastic contact portion 21 also has a second inner contact point 212, which is also a plurality of the second inner contact points 212 arranged at intervals. When the first outer contact point 111 makes contact with the second outer contact point 211 and the external plug-in portion, the first elastic contact portion 11 and the second elastic contact portion 21 both undergo elastic deformation, so that the first inner contact point 112 and the second inner contact point 212 make contact with the inner wall surface of the plug-in cavity 50. The first inner contact point 112 and the second inner contact point 212 can provide an additional path for current to pass through, so that the terminal can carry a larger current. Specifically, the plurality of first outer contact points 111 and the plurality of first inner contact points 112 are arranged alternately on the first elastic contact portion 11; the plurality of second outer contact points 211 and the plurality of second inner contact points 212 are arranged alternately on the second elastic contact portion 21.

[0032] Both the first side plate 30 and the second side plate 40 have rearwardly extending welded portions 60, which are cylindrical. The second side plate 40 has a first fixing portion 41 and a second fixing portion 42, which are connected and fixed together. In this embodiment, the first fixing portion 41 is a slot, and the second fixing portion 42 is a buckle. The slot and the buckle are engaged and fixed together by laser welding. Specifically, the slot is a dovetail groove, and the buckle is a dovetail buckle. The fasteners are engaged and fixed together by laser welding. The first fixing part 41 and the second fixing part 42 are more firmly and reliably engaged. Laser welding can further strengthen them and prevent them from falling off. In addition, the welding part 60 has a hollow cavity 61. A slot 62 is opened on the peripheral side of the welding part 60. The slot 62 is connected to the hollow cavity 61. When the welding part 60 is soldered, the solder can flow into the hollow cavity 61 through the slot 62, which effectively increases the contact area between the welding part and the solder, making the welding of the welding part 60 more firm and reliable.

[0033] Additionally, the inner wall surface of the insertion cavity 50 is provided with a protrusion 51 for making contact and conducting with the first inner contact point 112 or the second inner contact point 212.

[0034] The key design feature of this invention is that by adopting an elastic contact design, the terminal contact part can make stable contact with the external plug-in part under continuous vibration. In addition, the cylindrical shape of the welding part effectively increases the contact area between the welding part and the solder, making the welding part more solid and reliable after soldering and less likely to detach from the solder.

[0035] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A vibration-resistant automotive terminal, characterized in that: The device includes an integrally formed top plate, bottom plate, first side plate, and second side plate; the top plate, bottom plate, first side plate, and second side plate form a connecting cavity; the front side of the top plate extends a first elastic contact portion that extends into the connecting cavity, the first elastic contact portion has a first external contact point, and the first elastic contact portion is wavy; the front side of the bottom plate extends a second elastic contact portion that extends into the connecting cavity, the second elastic contact portion has a second external contact point, and the second elastic contact portion is wavy; the rear ends of the first side plate and the second side plate both extend rearward with a welded portion, the welded portion being cylindrical; the second side plate has a first fixing portion and a second fixing portion, the first fixing portion and the second fixing portion being connected and fixed together.

2. The vibration-resistant automotive terminal according to claim 1, characterized in that: The first fixing part is a slot, and the second fixing part is a buckle. The slot and the buckle engage with each other and are fixed together by laser welding.

3. The vibration-resistant automotive terminal according to claim 2, characterized in that: The slot is a dovetail groove, and the buckle is a dovetail buckle. The dovetail groove and the dovetail buckle are engaged and fixed together by laser welding.

4. The vibration-resistant automotive terminal according to claim 1, characterized in that: The first external contact point consists of multiple points arranged at intervals, and correspondingly, the second external contact point also consists of multiple points arranged at intervals.

5. The vibration-resistant automotive terminal according to claim 4, characterized in that: The first elastic contact portion also has a first inner contact point, which is a plurality of points arranged at intervals in front and back. The second elastic contact portion also has a second inner contact point, which is also a plurality of points arranged at intervals in front and back. When the first outer contact point and the second outer contact point and the external plug-in portion make contact and conduction, the first elastic contact portion and the second elastic contact portion both undergo elastic deformation, so that the first inner contact point and the second inner contact point make contact and conduction with the inner wall surface of the plug-in cavity.

6. The vibration-resistant automotive terminal according to claim 5, characterized in that: The plurality of first outer contact points and the plurality of first inner contact points are arranged alternately on the first elastic contact portion; the plurality of second outer contact points and the plurality of second inner contact points are arranged alternately on the second elastic contact portion.

7. The vibration-resistant automotive terminal according to claim 5, characterized in that: The inner wall of the insertion cavity is provided with a protrusion for making contact and conducting with the first inner contact point or the second inner contact point.

8. The vibration-resistant automotive terminal according to claim 1, characterized in that: The welding part has a hollow cavity, and a slot is opened on the peripheral side of the welding part, which connects to the hollow cavity.

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