CN217689100U

CN217689100U - Current needle bar and terminal structure of probe

Info

Publication number: CN217689100U
Application number: CN202122944919.4U
Authority: CN
Inventors: 孙炳贵
Original assignee: Kangxinda Technology Suzhou Co ltd
Current assignee: Kangxinda Technology Suzhou Co ltd
Priority date: 2021-11-27
Filing date: 2021-11-27
Publication date: 2022-10-28
Anticipated expiration: 2031-11-27

Abstract

The utility model relates to a current needle bar and terminal structure of probe, with treat that assembly current needle core print seat is connected, include: the base plate is provided with a first through hole, the end part of the current needle rod is provided with a spline along the axial direction of the current needle rod, and the end part of the current needle rod is in inserted fit with the first through hole through the spline; the lug boss is sleeved on the current needle rod and is connected with the substrate; and (6) positioning the bolt. The utility model discloses a current needle bar and terminal structure of probe, peg graft spline and base plate through first through-hole, and through the internal thread on the current needle bar and positioning bolt's cooperation with the base plate locking between waiting to assemble current needle core seat and positioning bolt, the use of nut has been reduced, the length dimension has been shortened, make the length dimension demand of voltage needle reduce, thereby the manufacturing cost of voltage needle has been reduced, on the other hand, positioning bolt only needs once to assemble and can accomplish, the defective percentage has been reduced when having improved assembly efficiency.

Description

Current needle bar and terminal structure of probe

Technical Field

The utility model belongs to the technical field of the probe technique and specifically relates to indicate a current needle bar and terminal structure of probe.

Background

The battery module of new forms of energy car passes through the connector by a plurality of electric cores usually and connects and constitute, and electric core needs to charge to it through the probe and activate after the assembly is accomplished.

And the electric current needle bar of probe need be through being connected in order to put through external power source with the terminal to charge for the electric core group, current electric current needle bar through set up the external screw thread, with two nut screw-thread fit, and establish the terminal card between two nuts, thereby the leading-in electric current needle bar of electric current through the terminal with external power source.

The length requirement of the voltage pin is high due to the connection mode, so that the production cost of the voltage pin is high, and on the other hand, the assembly efficiency is reduced and the assembly defective rate is increased due to the two-time nut assembly, so that the cost is further increased.

The conventional high-power battery probe with the authorization notice number of CN208188169U comprises a current needle, wherein a voltage needle is arranged in the current needle, a needle head of the voltage needle and a plastic insulating part of the voltage needle are both positioned in the needle head of the current needle, a needle rod of the voltage needle is positioned in the needle rod of the current needle, and the tail part of the voltage needle is exposed out of the rear end of the current needle; an inner spring and a first inner insulating sleeve are sleeved in the middle of the needle rod of the voltage needle, the front end of the inner spring is abutted against a plastic insulating part of the voltage needle, and the rear end of the inner spring is abutted against the first inner insulating sleeve; the tail part of the voltage needle rod is sleeved with a second inner insulating sleeve through a fixing ring; the anterior cover of electric current needle bar is equipped with an outer spring, the middle part cover of electric current needle bar is equipped with a probe seat, the front end of outer spring with the electric current needle syringe needle is inconsistent, the rear end of outer spring with the probe seat is inconsistent, the afterbody of electric current needle bar overlaps in proper order and is equipped with two nuts.

The terminal is locked by two nuts at the tail end of the voltage pin, and the problem of high cost is also solved.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims to solve the technical problem that overcome among the prior art through two nut centre gripping locking terminal, lead to the higher problem of voltage needle manufacturing cost to a current needle bar and the terminal structure of probe that the cost is lower, the defective percentage is low is provided.

In order to solve the technical problem, the utility model provides a current needle bar and terminal structure of probe with wait to assemble the electric current core print seat and be connected, include:

the base plate is provided with a first through hole, the end part of the current needle rod is provided with a spline along the axial direction of the current needle rod, and the end part of the current needle rod is in inserted fit with the first through hole through the spline;

the lug boss is sleeved on the current needle rod and connected with the substrate, and the lug boss is used for being inserted into the current needle core seat to be assembled;

the end part of the current needle rod is provided with an internal thread, the positioning bolt is connected with the current needle rod through the internal thread, and the substrate is positioned between the current needle core seat to be assembled and the positioning bolt.

As a further improvement of the utility model, the axial of positioning bolt is equipped with the second through-hole for pass voltage needle.

As a further improvement, the side face of the base plate is provided with a wiring component.

As a further improvement of the present invention, the wiring member includes:

a base plate connected with the substrate;

the limiting part is matched with the bottom plate to form a limiting space, and the limiting space is used for connecting the braided wire to access current.

As a further improvement, one side of the locating part is provided with a notch so that the braided wire is clamped into the spacing space.

As a further improvement, the one end in spacing space is equipped with the baffle, the tip of braided wire with the baffle butt.

As a further improvement of the utility model, be equipped with the third through-hole that is used for annotating the tin on the locating part, so that the braided wire with the bottom plate electricity is connected.

As a further improvement, be equipped with the screw hole on the locating part, threaded hole wears to be equipped with locking bolt, locking bolt passes the screw hole with the braided wire butt.

As a further improvement of the present invention, the positioning bolt is provided with a gasket between the base plates.

As a further improvement of the utility model, the gasket is a wave-shaped gasket.

Compared with the prior art, the technical scheme of the utility model have following advantage:

the utility model discloses a current needle bar and terminal structure of probe, peg graft spline and base plate through first through-hole, and through the internal thread on the current needle bar and positioning bolt's cooperation with the base plate locking between waiting to assemble current needle core seat and positioning bolt, the use of nut has been reduced, the length dimension has been shortened, make the length dimension demand of voltage needle reduce, thereby the manufacturing cost of voltage needle has been reduced, on the other hand, positioning bolt only needs once to assemble and can accomplish, the defective percentage has been reduced when having improved assembly efficiency.

Drawings

In order to make the content of the present invention more clearly understood, the present invention will be described in further detail below according to specific embodiments of the present invention in conjunction with the attached drawings, in which:

FIG. 1 is a schematic structural view of the current pin shaft and terminal structure of a probe according to a preferred embodiment of the present invention (after assembly with a current pin cartridge holder);

FIG. 2 is a schematic view of the structure of the current pin rod in the preferred embodiment of the present invention;

FIG. 3 is a front view of the current pin shaft and terminal structure of the probe in the preferred embodiment of the invention (assembled with the current pin cartridge receptacle);

fig. 4 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 3.

The specification reference numbers indicate: 1. a substrate; 2. a spline; 3. a boss; 4. positioning a bolt; 5. a base plate; 6. a stopper; 7. a baffle plate; 8. a third via.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

It will be understood that when an element is referred to as being "disposed on," "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured" to, or "fixedly coupled" to another element, it can be removably secured or non-removably secured to the other element. When an element is referred to as being "connected," "pivotally connected," to another element, it can be directly connected to the other element or intervening elements may also be present. The use of the terms "vertical," "horizontal," "left," "right," "up," "down," and the like are for illustrative purposes only and do not denote a single embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the present invention, the terms "first", "second", "third", and the like are used for distinguishing names, but do not denote any particular quantity or order.

In some embodiments, referring to fig. 1-4, a current pin shaft and terminal structure of a probe of the present invention, connected to a current pin holder to be assembled, includes:

the circuit board comprises a substrate 1, wherein a first through hole is formed in the substrate 1, a spline 2 is arranged at the end part of a current needle rod along the axial direction of the current needle rod, and the end part of the current needle rod is in plug-in fit with the first through hole through the spline 2;

the lug boss 3 is sleeved on the current needle rod and connected with the substrate 1, and the lug boss 3 is used for being inserted into the current needle core seat to be assembled;

the end part of the current needle bar is provided with an internal thread, the positioning bolt 4 is connected with the current needle bar through the internal thread, and the substrate 1 is positioned between the current needle core seat to be assembled and the positioning bolt 4.

The end, provided with the spline 2, of the current needle rod is locked into the first through hole through a wrench, the first through hole and the boss 3 are formed in a punch forming mode, the boss 3 and the substrate 1 are of an integral structure, so that the current needle rod and the substrate 1 are axially overlapped, the length size of the whole is shortened, the substrate 1 is positioned between a current needle core seat to be assembled and a positioning bolt 4 through the matching of the positioning bolt 4 and the internal thread on the current needle rod, the whole size required by a voltage needle is shortened, the production cost of the voltage needle is reduced, the assembly efficiency is improved, and the defective rate is reduced;

it should be noted that, in order to facilitate the wrench to screw the current needle bar, the two sides of the end of the current needle bar far away from the spline 2 are provided with platform surfaces, so that the wrench can clamp the current needle bar through the platform surfaces.

In some embodiments, as shown with reference to fig. 4, the positioning bolt 4 is provided with a second through hole in the axial direction for passing through the voltage pin. The end part of the voltage needle is exposed in a penetrating mode, so that the voltage needle is convenient to connect.

In some embodiments, referring to fig. 1, the side of the substrate 1 is provided with wiring members. Can be convenient for insert electric current to terminal department through wiring subassembly to the suitability of this structure has been improved.

In some embodiments, as shown with reference to fig. 1 and 4, a wiring assembly includes:

a bottom plate 5, wherein the bottom plate 5 is connected with the substrate 1;

and the limiting part 6, the limiting part 6 and the bottom plate 5 are matched to form a limiting space, and the limiting space is used for connecting the braided wire to access current. The braided wire is directly clamped through the limiting space, so that the assembly is facilitated, and the connection cost is reduced;

it should be noted that the limiting member 6 is preferably a U-shaped channel member, the U-shaped opening of which is disposed toward the bottom plate 5, thereby forming a limiting space around it.

In some embodiments, referring to fig. 1, one side of the limiting member 6 is provided with a notch to facilitate the braided wire to be clamped into the limiting space. Be convenient for go into the braided wire spacing space through the breach card in, can improve assembly efficiency.

In some embodiments, referring to fig. 1, one end of the spacing space is provided with a baffle 7, and the end of the braided wire abuts against the baffle 7. When the braided wire spacing device is used, the baffle 7 is positioned below the limiting part 6, so that the braided wire can be further prevented from being separated from the limiting space.

In one embodiment, referring to fig. 1 and 3, the limiting member 6 is provided with a third through hole 8 for injecting tin, so that the braided wire is electrically connected with the bottom plate 5. By injecting tin between the braided wire and the bottom plate 5, the contact area between the braided wire and the bottom plate 5 can be enlarged, and the conductive efficiency between the braided wire and the bottom plate 5 is improved.

In another embodiment, the limiting member 6 is provided with a threaded hole, a locking bolt penetrates through the threaded hole, and the locking bolt penetrates through the threaded hole to abut against the braided wire. Hug closely braided wire and bottom plate 5 through the locking bolt, be convenient for adjust the interval between braided wire and the bottom plate 5 to the change of the braided wire of being convenient for, and in this embodiment, can lead to the area of contact between braided wire and the bottom plate 5 to reduce, reduced electrically conductive efficiency.

In some embodiments, a spacer is provided between the positioning bolt 4 and the base plate 1. The problem that the structure that positioning bolt 4 becomes flexible and rebounds to lead to looses the frame in the course of the work can be avoided through the gasket.

In some embodiments, the shim is a wave shim. The wave-shaped gasket has good elasticity and shock resistance, and has higher axial stress bearing capacity, thereby being more suitable for avoiding the work of loosening and rebounding the positioning bolt 4.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the invention.

Claims

1. A current needle bar and terminal structure of probe, with wait to assemble current nook closing member seat and be connected, its characterized in that includes:

2. A current shank and terminal structure of a probe as claimed in claim 1, wherein the positioning bolt is provided with a second through hole in an axial direction for passing through the voltage pin.

3. A current shank and terminal structure for a probe according to claim 1, wherein a wiring member is provided on a side of the substrate.

4. A current shank and terminal structure for a probe according to claim 3, wherein the wiring assembly includes:

a base plate connected with the substrate;

5. The current pin rod and terminal structure of claim 4, wherein one side of the limiting member is provided with a notch to facilitate the braided wire to be clamped into the limiting space.

6. The current shank and the terminal structure of the probe according to claim 4, wherein a stopper is provided at one end of the space for limiting, and an end of the braided wire abuts against the stopper.

7. The current shank and terminal structure of a probe of claim 4, wherein the retaining member is provided with a third through hole for injecting tin, so that the braided wire is electrically connected to the base plate.

8. The current needle bar and terminal structure of probe according to claim 4, wherein the limiting member is provided with a threaded hole, a locking bolt is arranged in the threaded hole, and the locking bolt passes through the threaded hole and abuts against the braided wire.

9. The current shank and terminal structure of a probe of claim 1, wherein a spacer is disposed between the positioning bolt and the substrate.

10. The current shank and terminal structure of a probe of claim 9, wherein the spacer is a wave spacer.