CN214227726U

CN214227726U - Connection structure and terminal box of pencil terminal and connection terminal

Info

Publication number: CN214227726U
Application number: CN202022507002.3U
Authority: CN
Inventors: 王梦琦; 靳海涛; 周东升; 刘传康; 王海斌
Original assignee: Jing Jin Electric Technologies Beijing Co Ltd
Current assignee: Jing Jin Electric Technologies Beijing Co Ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-09-17
Anticipated expiration: 2030-11-03

Abstract

The utility model discloses a connection structure and terminal box of pencil terminal and connection terminal inlays on the upper surface of the connection terminal among this connection structure and is equipped with the binding nut, is provided with a screw hole on the axis direction of binding nut, is provided with the elastic bulge piece on the both sides limit of the up end of binding nut, and the elastic bulge piece can produce the deformation to fix the pencil terminal on the connection terminal in advance. The structure that wire harness terminal and connection terminal pre-fixed disclosed by the technical scheme, overall structure is simple, the manufacturing cost is low, operation is convenient, positioning is accurate, and damage to other parts is avoided.

Description

Connection structure and terminal box of pencil terminal and connection terminal

Technical Field

The utility model belongs to the technical field of the electricity junction box, in particular to connection structure and terminal box of pencil terminal and connection terminal.

Background

When an electrical junction box is used for connecting a circuit, the wire harness terminal at one end is often required to be fixed at a preset position, and then the wire harness terminal at the other end is also connected to the junction box in a subsequent process.

For example, when the driving motor or the generator of the pure electric vehicle or the hybrid vehicle is connected at high voltage, a high-voltage junction box is generally used for connection, where three-phase connection lines from the motor stator of the vehicle are required to be respectively connected with three-phase connection lines of a controller which is expected to be correspondingly matched. Under most circumstances, owing to arrange the space limited, and need fix the three-phase connecting wire of motor in advance to follow-up appear carrying out the spiro union with the three-phase of controller on automatic production line, and current pre-fixing technology is loaded down with trivial details, and is inefficient, and the cost of labor is high, influences the production beat.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model discloses a connection structure and terminal box of pencil terminal and connection terminal to overcome above-mentioned problem or solve above-mentioned problem at least partially.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model discloses an aspect provides a connection structure of pencil terminal and connection terminal, inlay on the upper surface of connection terminal and be equipped with binding nut, just be provided with the screw hole on binding nut's the axis direction, the both sides edge of binding nut's up end is provided with elastic bulge piece, elastic bulge piece can produce the deformation, thereby will the pencil terminal is pre-fixed on the connection terminal.

Optionally, the terminal nut and the terminal base are integrally formed or separately manufactured and then fixedly connected.

Optionally, the wire holder is further provided with a special-shaped boss at each of the terminal nuts, and the special-shaped boss is arranged at a position where the through hole of the wire harness terminal is concentrically aligned with the threaded hole of the terminal nut, and the terminal nut is limited.

Optionally, the material of binding nut is metal, and with wire holder injection moulding, just be provided with the step face on the up end of binding nut, make the part under the binding nut step face is embedded into in the wire holder, prevent that binding nut follows drop on the wire holder.

Optionally, the cross section of the elastic lug is crescent or the longitudinal section of the elastic lug is L-shaped.

Optionally, the elastic convex sheets on two sides of the binding nut are tightly held with the wire harness terminal after being extruded and deformed; alternatively, the first and second electrodes may be,

the wire harness terminal is engaged with the elastic protruding piece, so that the wire harness terminal is fixed.

Optionally, the wire holder is injection moulding spare, the material of pencil terminal is copper, binding nut's material is plastics, resin or metal.

Optionally, the connection structure further includes a second harness terminal, the second harness terminal is provided with a through hole, and can be plugged into the harness terminal, and the harness terminal and the second harness terminal are fixed on the threaded hole of the terminal nut by a screw.

Optionally, the wire harness terminal is a motor wire harness terminal, the second wire harness terminal is a controller wire harness terminal, and the wire holders are multiple and have the same or different heights.

The utility model discloses another aspect provides a terminal box, the terminal box includes terminal box body and terminal box lid, this internal arbitrary one of above-mentioned that is provided with of terminal box connection structure.

The utility model has the advantages and beneficial effects that:

the structure that wire harness terminal and wire holder were fixed in advance that above-mentioned technical scheme disclosed, simple structure, the cost of manufacture is low, and convenient operation, the location is accurate, has avoided the damage to other spare parts.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic view of a connection structure of a wire harness terminal and a wire holder according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a terminal nut according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a connection structure of a motor harness and a controller harness according to an embodiment of the present invention.

In the figure: 1. a wire holder; 2. a threaded hole; 3. a wiring nut; 4. a wire harness terminal; 5. an elastic lug plate; 6. a wire holder notch; 7. a step surface; 8. a special-shaped boss; 9. a motor harness; 10. a controller harness; 11. and (4) screws.

Detailed Description

In order to make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to perform clear and complete description of the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It is to be understood that the terms "comprises/comprising," "consisting of … …," or any other variation, are intended to cover a non-exclusive inclusion, such that a product, device, process, or method that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product, device, process, or method if desired. Without further limitation, an element defined by the phrases "comprising/including … …," "consisting of … …," or "comprising" does not exclude the presence of other like elements in a product, device, process, or method that comprises the element.

It will be further understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship illustrated in the drawings for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device, component, or structure so referred to must have a particular orientation, be constructed in a particular orientation, or be operated in a particular orientation, and are not to be considered limiting of the invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Example 1

Fig. 1 shows a connection structure of a wire harness terminal and a wire holder according to this embodiment, in which a terminal nut 3 is embedded on an upper surface of the wire holder 1, a threaded hole 2 is formed in an axial direction of the terminal nut 3, elastic protruding pieces 5 are provided on both sides of an upper end surface of the terminal nut 3, and the elastic protruding pieces 5 are capable of being deformed to pre-fix the wire harness terminal 4 on the wire holder.

Specifically, the elastic lug pieces 5 and the harness terminal 4 may be connected by snap-fitting so that the harness terminal 4 is inserted between the two elastic lug pieces, and at this time, the longitudinal section of the elastic lug pieces may be an inverted L-shape or other similar structure, thereby snap-fitting the harness terminal 4 to the terminal nut 3.

In one embodiment, particularly when the terminal nut 3 is made of metal, the elastic protrusion piece may be pressed and deformed by using a tool such as nipper pliers and then clasped to the harness terminal 4, and referring to the structure diagram of the terminal nut shown in fig. 2, the cross section of the elastic protrusion piece 5 is crescent-shaped, thereby facilitating the pressing operation.

In one embodiment, the wire nut 3 and the wire holder 1 may be integrally formed, such as injection molding, or they may be separately manufactured and then fixedly connected together by means of screws or bolts.

Preferably, the material of the wire connection nut 3 is metal, the material of the wire holder 1 is plastic or resin, the wire connection nut 3 is embedded into the wire holder 1 in an injection molding manner in the manufacturing process, and the upper end surface of the wire connection nut 3 is provided with a step surface 7, so that the part of the wire connection nut 3 below the step surface 7 is embedded into the wire holder in the injection molding process, and the part of the wire connection nut 3 above the step surface is formed as a part of the wire holder 1, thereby preventing the wire connection nut 3 from falling off from the wire holder.

In one embodiment, referring to fig. 1, the wire holder 1 is further provided with a specially-shaped boss 8 at the position of the terminal nut 3, and the specially-shaped boss 8 is arranged at a position such that the through hole on the wire harness terminal is concentrically aligned with the threaded hole on the terminal nut and limits the terminal nut 3, thereby preventing the wire harness terminal 4 from being separated from the wire holder notch 6.

In one embodiment, the wire holder 1 is preferably an injection molded part, made of plastic or resin; the wire harness terminal 4 is generally made of copper and can be used for conducting electricity; the material of the terminal nut 3 may be selected from plastic, resin, or metal depending on the connection method.

In an embodiment, the embodiment also discloses an application of the connection structure in a new energy pure electric vehicle, in this case, the connection structure further includes a second harness terminal such as a terminal of a controller harness 10, and the harness terminal may be a terminal of a motor harness 9, a through hole is provided on the second harness terminal, and the harness terminal and the second harness terminal may be plugged together, and then the harness terminal 4 and the second harness terminal are fixed on the threaded hole 2 of the terminal nut 3 by a screw 11.

Since the motor wire harness and the controller wire harness generally carry three-phase power, in a preferred embodiment, the number of the wire holders is 3, and the wire holders can be arranged at the same height according to the space size of the junction box, or can be arranged on platforms with different heights or two heights when the space in the junction box is small, so that the size of the junction box is reduced.

Example 2

The embodiment firstly discloses a junction box, which comprises a junction box body and a junction box cover, wherein the junction box body is internally provided with the connecting structure.

Further, this embodiment 2 also discloses a connection method of the above connection structure, which includes the following steps:

the motor wiring harness terminal is connected onto the wiring seat 1 in an overlapping mode through a wiring seat notch 6, a through hole of the motor wiring harness 9 terminal is aligned with a threaded hole of the wiring nut 3 in a concentric mode through fine adjustment, and the motor wiring harness terminal is located through a special-shaped platform.

Then, mounting a motor wiring harness terminal, applying pressure on an elastic lug boss 5 of the wiring nut 3 through tools such as sharp-nose pliers and the like, extruding to generate plastic deformation, tightly holding the motor wiring harness terminal, or directly inserting the motor wiring harness terminal between the elastic lug bosses 5 to realize clamping and fixing, so that the motor wiring harness terminal is pre-fixed;

in the next step, the terminal through holes of the controller harness 10 are aligned concentrically with the terminal through holes of the motor harness 9 and the screw holes 2 of the terminal nuts 3, and then the controller harness is screwed into the screws 11 to be fixedly connected.

In conclusion, the technical scheme of the connecting structure, the connecting method and the like has the advantages of simple overall structure, low manufacturing cost, convenience in operation and accuracy in positioning, and avoids damage to other parts.

The above description is only for the embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, extension, etc. made within the spirit and principle of the present invention are all included in the protection scope of the present invention.

Claims

1. The utility model provides a connection structure of pencil terminal and connection terminal, its characterized in that, inlay on the upper surface of connection terminal and be equipped with binding nut, be provided with the screw hole on binding nut's the axis direction, the both sides edge of binding nut's up end is provided with the elastic bulge piece, the elastic bulge piece can produce the deformation, thereby will the pencil terminal is pre-fixed on the connection terminal.

2. The connection structure as claimed in claim 1, wherein the terminal nut is integrally formed with the terminal holder or separately manufactured for a post-fixing connection.

3. The connection structure according to claim 1, wherein the wire holder is further provided with a shaped boss at a position of each of the terminal nuts, the shaped boss being positioned so that the through hole of the wire harness terminal is concentrically aligned with the threaded hole of the terminal nut and the terminal nut is restrained.

4. The connection structure according to claim 1, wherein the material of the terminal nut is metal, and the terminal nut is injection-molded with the wire holder, and a step surface is provided on an upper end surface of the terminal nut, so that a portion below the step surface of the terminal nut is embedded in the wire holder to prevent the terminal nut from falling off the wire holder.

5. The connecting structure according to claim 1, wherein the cross section of the elastic lug is crescent-shaped or the longitudinal section of the elastic lug is L-shaped.

6. The connecting structure according to claim 1, wherein the elastic projecting pieces on both sides of the terminal nut are clasped with the harness terminal after being subjected to compressive deformation; alternatively, the first and second electrodes may be,

7. The connection structure according to claim 1, wherein the wire holder is an injection-molded article, the wire harness terminal is made of copper, and the wire nut is made of plastic, resin, or metal.

8. The connection structure according to claim 1, further comprising a second harness terminal provided with a through hole and being insertable onto the harness terminal, and fixing the harness terminal and the second harness terminal to the threaded hole of the terminal nut by a screw.

9. The connection structure according to claim 8, wherein the harness terminal is a motor harness terminal, the second harness terminal is a controller harness terminal, and the wire holders are plural and equal in height or not identical.

10. A junction box, characterized in that the junction box comprises a junction box body and a junction box cover, wherein the connection structure according to any one of claims 1-9 is arranged in the junction box body.