CN211265604U

CN211265604U - Elastic press-fitting terminal assembly

Info

Publication number: CN211265604U
Application number: CN201922207628.XU
Authority: CN
Inventors: 王关炎; 高睿; 罗伟力
Original assignee: Amtek Suzhou Precision Engineering Ltd
Current assignee: Interplex Suzhou Precision Engineering Ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-08-14
Anticipated expiration: 2029-12-11

Abstract

The utility model provides an elastic press-fitting terminal assembly, which comprises a pre-press-fitting terminal and a crimping part connected with the pre-press-fitting terminal, wherein the pre-press-fitting terminal comprises a supporting bar, eagle eye terminals are vertically arranged at both ends of the supporting bar, the middle part of the supporting bar is bent upwards to form an elastic part, and the protruding direction of the elastic part is consistent with the vertical direction of the eagle eye terminals; the crimping part comprises a supporting rod and inserting holes which are arranged at two ends of the supporting rod and are used for being inserted into the eagle eye terminals. The beneficial effects of the utility model are embodied in: the terminal assembly has small volume, solves the problem of space limitation of the traditional technology, improves the energy density of the battery pack, and also improves the assembly safety; the assembly process is simple, automation can be realized, the problem of assembly efficiency is improved, and the manufacturing capacity is improved; the integrated connection fastening and signal acquisition function reduce product weight, the cost is reduced.

Description

Elastic press-fitting terminal assembly

Technical Field

The utility model belongs to the technical field of the new energy automobile electricity is connected, especially, relate to an elasticity pressure equipment terminal subassembly for battery module.

Background

With the global importance on environmental protection, the new energy electric automobile develops very rapidly, and three of the new energy electric automobiles are new core technologies developed therewith. As a battery pack for one of three batteries, there are currently three cell types: soft-packaged electrical core, square duricrust electric core and cylindrical electric core, the domestic more soft-packaged electrical core that adopts, the present more adoption double-screw bolt nut compresses tightly electric core utmost point ear and is connected female arranging, with electric core series-parallel connection, and finally positive and negative pole end is drawn forth alone again. The stud is usually fixed by pre-embedding and injection molding on the battery cell fixing support, and a battery cell tab needs to penetrate through the stud and then be bent and compressed by a nut together with the connecting bus bar. The existing connection mode is limited by the height of a stud, occupies a high space, and has the defects of low energy density, large lug opening, sufficient length required to be reserved, and easy electrode short circuit ignition caused by bending and penetrating the stud; in order to meet the requirements of the vibration working condition of the automobile, the stud and the nut are matched, and a screw glue or a locknut is also needed, so that the cost is high; the operability of the stud nut process is limited, automation is difficult to realize, and the production efficiency and the capacity are limited. In addition, the technology can only meet the connection and fastening functions, the signal detection of the battery pack needs to be carried out by welding an additional wire harness to a connecting bus bar and leading the wire harness to a PCB of a battery management unit independently, and the whole battery pack is complex in assembly process and high in cost. In conclusion, new connection technologies need to be explored to improve the defects of the current stud-nut connection.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides an elasticity pressure equipment terminal subassembly.

The purpose of the utility model is realized through the following technical scheme:

an elastic press-fitting terminal assembly comprises a pre-press-fitting terminal and a press-connection part connected with the pre-press-fitting terminal, wherein the pre-press-fitting terminal comprises a supporting strip, eagle eye terminals are vertically arranged at two ends of the supporting strip, the middle part of the supporting strip is bent upwards to form an elastic part, and the protruding direction of the elastic part is consistent with the vertical direction of the eagle eye terminals; the crimping part comprises a supporting rod and inserting holes which are arranged at two ends of the supporting rod and are used for being inserted into the eagle eye terminals.

Preferably, the middle of the supporting rod is recessed downwards to form a crimping elastic part.

Preferably, the two sides of the supporting bar are vertically provided with locking fins.

Preferably, two sides of the supporting rod extend outwards to form locking plates inserted into the locking fins.

Preferably, the number of the locking fins is four, and the four locking fins are respectively arranged on two sides of the supporting bar between the eagle eye terminal and the elastic part. Of course, as the press-fitting force requirement increases, the number of the locking fins may also need to be adjusted accordingly.

Preferably, the locking piece is provided with four. The number of the locking plates can be adjusted according to the requirement of press-fitting force.

Preferably, the support bar is provided with riveting bolts, the riveting bolts are arranged at two ends of the elastic part, and the support rod is provided with connecting holes used for being matched with the riveting bolts.

Preferably, all be provided with supplementary shape-changing hole on support bar and the branch, supplementary shape-changing hole set up in the both ends of elasticity portion and crimping elasticity portion.

The beneficial effects of the utility model are embodied in: the terminal assembly has small volume, solves the problem of space limitation of the traditional technology, improves the energy density of the battery pack, and also improves the assembly safety; the assembly process is simple, automation can be realized, the problem of assembly efficiency is improved, and the manufacturing capacity is improved; the integrated connection fastening and signal acquisition function reduce product weight, the cost is reduced.

Drawings

FIG. 1: the utility model discloses a connection schematic diagram of one of them structure.

FIG. 2: the utility model discloses the structural connection schematic diagram of another embodiment.

FIG. 3: the utility model discloses structural schematic when the actual application.

Detailed Description

The technical scheme of the utility model is specifically explained below in combination with the embodiment, it is shown in combination with fig. 1-3, the utility model discloses an elasticity pressure equipment terminal subassembly, this subassembly include pre-compaction dress terminal and parallel arrangement in pre-compaction dress terminal top and with the crimping portion that pre-compaction dress terminal is connected constitutes.

The pre-compaction terminal comprises a supporting bar 2, eagle eye terminals 21 are vertically arranged at two ends of the supporting bar 2, the middle of the supporting bar 2 is bent upwards to form an elastic part 1, and the protruding direction of the elastic part 1 is consistent with the vertical direction of the eagle eye terminals 21. The bending angle of the elastic part 1 is larger than 90 degrees, and in order to prolong the service life of the terminal, the bending part adopts a chamfer type smooth transition form.

The crimping part comprises a support rod, and insertion holes 42 arranged at two ends 41 of the support rod and used for being inserted into the eagle eye terminals 21. The middle of the supporting rod is downwards concave to form a compression joint elastic part 4. The downward concavity of the crimp elastic portion 4 means a concavity toward the pre-press-fit terminal when in use.

In order to assist the deformation of the elastic part 1 and the compression joint elastic part 4 in use and the convenience and labor saving in use, auxiliary deformation holes 32 are arranged on the support bar 2 and the support rod, and are arranged at two ends of the elastic part 1 and the compression joint elastic part 4.

And lock catch fins 3 are vertically arranged on two sides of the supporting bar 2. The locking fin 3 is a connecting sheet provided with a slotted hole. The four locking fins 3 are respectively arranged on two sides of the supporting bar 2 between the eagle eye terminal 21 and the elastic part 1.

Correspondingly, two sides of the supporting rod extend outwards to form locking plates 31 which are inserted into the locking fins 3. The locking pieces 31 are four and respectively correspond to the four locking fins 3. During connection, pre-compression terminal is inserted in the below of PCB board 5 through hawk eye connecting terminal 21, and rethread compression joint portion and PCB board 5 carry out elastic fit and provide the pretightning force, and simultaneously, wear to locate through the locking plate 31 of crimping portion realize crimping portion and pre-compression dress terminal cooperation in the hasp fin 3, realize fast electric core utmost point ear and female being connected of arranging to with the signal transmission to the PCB board of electric core simultaneously. The number of the locking plates and the locking fins can be adjusted according to the requirement of the press fitting force.

Considering that frequent dismouting and output busbar or high-pressure pencil product use probably swing and the torsional motion is bigger, in order to guarantee the stability of connecting, the utility model discloses still provide the connected mode between another kind of pressure equipment terminal subassembly, it is shown to combine fig. 2 promptly, fig. 2 is the structural indication of another kind of terminal, and is similar with structure in fig. 1, and the difference is, has cancelled hasp fin 3, and the form that adopts the riveting connecting piece on support bar 2 instead, seted up on corresponding crimping portion 6 with the connecting hole that the riveting connecting piece is connected, one side and the module connecting wire harness of crimping portion 6 are connected, the riveting connecting piece is riveting nut or riveting double-screw bolt.

The utility model discloses novel structure, can be ingenious carry on electric core utmost point ear and PCB board and female being connected of arranging between. The existing connection in a bolt and nut assembly or welding mode is avoided, the connection is convenient and quick, the automation can be realized, the productivity is improved, and the conduction effect is good.

The upper, lower, upper, lower and other directional words in the present invention are all based on the description drawings in the present invention, and do not represent absolute limitation.

Of course, the present invention has many specific embodiments, which are not listed here. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the scope of the present invention.

Claims

1. An elastic press-fitting terminal assembly, characterized in that: the support bar comprises a pre-pressing terminal and a pressing part connected with the pre-pressing terminal, wherein the pre-pressing terminal comprises a support bar, eagle eye terminals are vertically arranged at two ends of the support bar, the middle part of the support bar is bent upwards to bulge to form an elastic part, and the bulge direction of the elastic part is consistent with the vertical direction of the eagle eye terminals; the crimping part comprises a supporting rod and inserting holes which are arranged at two ends of the supporting rod and are used for being inserted into the eagle eye terminals.

2. A resilient press-fit terminal assembly according to claim 1, wherein: the middle of the supporting rod is downwards concavely arranged to form a compression joint elastic part.

3. A resilient press-fit terminal assembly according to claim 2, wherein: and lock catch fins are vertically arranged on two sides of the supporting strip.

4. A resilient press-fit terminal assembly according to claim 3, wherein: and locking plates inserted into the locking fins are arranged on two sides of the supporting rod in an outward extending mode.

5. The resilient press-fit terminal assembly of claim 4, wherein: the four lock catch fins are arranged on two sides of the supporting bar between the eagle eye terminal and the elastic part respectively.

6. A resilient press-fit terminal assembly according to claim 5, wherein: the locking plate is provided with four.

7. A resilient press-fit terminal assembly according to claim 1, wherein: the support bar is provided with riveting bolts, the riveting bolts are arranged at two ends of the elastic part, and the support rod is provided with connecting holes matched with the riveting bolts.

8. A resilient press-fit terminal assembly according to claim 1, wherein: all be provided with supplementary shape-changing hole on support bar and the branch, supplementary shape-changing hole set up in the both ends of elasticity portion and crimping elasticity portion.