Large-current wiring terminal assembly convenient for perforation installation

Abstract

The utility model discloses a large current wiring terminal assembly convenient for perforation installation, comprising a wiring terminal and an insulator, the wiring terminal comprises a terminal large diameter section and a terminal small diameter section, the terminal small diameter section is in a flat strip shape and is provided with a terminal through hole, the insulator comprises a first insulator and a second insulator, and the first insulator and the second insulator are respectively provided with a through hole. The first insulator is provided with a first insulator boss, the second insulator is provided with a second insulator boss, the second insulator penetrates through a first insulator axial through hole of the first insulator, and the small-diameter section of the terminal penetrates through a second insulator axial through hole of the second insulator. And the connecting screw passes through the first insulator radial through hole of the first insulator, the second insulator radial through hole of the second insulator and the terminal through hole and is connected with the nut. The wiring terminal assembly has the advantages of being reliable in insulation, good in vibration resistance, large in bearing current, low in cost and small in occupied space, and is particularly suitable for being used as a wiring terminal assembly of a large-current product used in a vibration environment.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wiring terminal assembly for electric connection, especially to a large-current wiring terminal assembly convenient for perforation installation. BACKGROUND

[0002] Wiring terminals are usually used in electrical products, for example, in filters, wiring terminals are usually used to pass through the side wall of the shell to realize electrical connection with other components, the filter shell is generally a metal shell, in order to avoid the conductive connection between the wiring terminal and the filter shell, the wiring terminal is generally installed on the side wall of the filter shell through an insulator.

[0003] There are two kinds of conventional installation methods for installing the wiring terminal in the perforation mode on the side wall of the metal shell through the insulator, one is to use an insulator with a hole to be fixed in the through hole on the side wall of the shell, and the wiring terminal is fixed in the through hole of the insulator, this installation method is generally applicable to small-current products, and has the defect of poor vibration resistance of the fixing method, and has the risk of loosening when used in a vibrating environment; the other installation method is to use a pair of (plug, socket) connectors to complete, the socket passes through the side wall of the metal shell and is installed with multiple screws, and then a plug matched with the socket is used outside the metal shell to realize the function of being disconnected at any time, this installation method has the defects of high cost and large space occupation, and the quick disassembly function is redundant and not practical in products that do not need to be disassembled. SUMMARY

[0004] The utility model aims at solving the above problems and provides a large-current wiring terminal assembly convenient for perforation installation, which has good vibration resistance, low cost and small space occupation.

[0005] The utility model realizes the above-mentioned purposes through the following technical solutions:

[0006] A large current terminal assembly for facilitating the installation of a through hole, comprising a terminal and an insulator, the terminal comprising an axially interconnected terminal large diameter section and a terminal small diameter section, the radial dimension of the terminal large diameter section being larger than the radial dimension of the terminal small diameter section, the terminal small diameter section being in the shape of a flat strip and having a terminal through hole at a position close to the terminal large diameter section, the terminal through hole penetrating through opposite two large surfaces of the terminal small diameter section, the insulator comprising a first insulator and a second insulator, an axially one end of the first insulator having an increased peripheral dimension to form a first insulator boss, the first insulator being provided with a flat first insulator axial through hole, the first insulator axial through hole penetrating through the first insulator boss, the first insulator being provided with a first insulator radial through hole at a position close to the first insulator boss, the first insulator radial through hole intersecting and being perpendicular to the first insulator axial through hole, an axially one end of the second insulator having an increased peripheral dimension to form a second insulator boss, the second insulator being provided with a flat second insulator axial through hole, the second insulator axial through hole penetrating through the second insulator boss, the second insulator being provided with a second insulator radial through hole, the second insulator radial through hole intersecting and being perpendicular to the second insulator axial through hole, the second insulator passing through the first insulator axial through hole from one end of the first insulator boss, the terminal small diameter section passing through the second insulator axial through hole and passing out from the other end of the second insulator boss, a stud of a connecting screw passing through the first insulator radial through hole, the second insulator radial through hole and the terminal through hole and being connected with a nut.

[0007] As a preference, in order to facilitate the electrical connection of the terminal small diameter section with other components, the terminal small diameter section is provided with a connecting through hole at a position close to the terminal small diameter section, the connecting through hole penetrating through opposite two large surfaces of the terminal small diameter section.

[0008] As a preference, in order to facilitate the electrical connection of the terminal large diameter section with other components, the terminal large diameter section is in the shape of a cylinder and is provided with a blind hole at the terminal large diameter section.

[0009] As a preference, in order to facilitate the cooperation with a nut of a connecting screw, a side surface of the first insulator in contact with the nut of the connecting screw is a flat surface.

[0010] The utility model has the advantages of:

[0011] The utility model discloses a terminal small diameter section, first insulator and second insulator are designed as the structure of mutual sleeve, and through the same connecting bolt, three components are connected with each other, on the basis of realizing the function that terminal small diameter section is led out from the metal shell side wall through -hole, utilize first insulator and second insulator to realize the reliable insulation between wiring terminal and metal shell, utilize the clamping structure between first insulator boss and second insulator boss to realize the reliable mechanical connection between wiring terminal and metal shell, have the advantages of reliable insulation, good anti -vibration performance, big carrying current, low in cost, and the advantage such as small space occupation, especially suitable as the wiring terminal assembly of high -current product in vibration environment. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is one of the stereogram explosion diagrams of the high current wiring terminal assembly convenient to install through the hole before assembling of the utility model,

[0013] Figure 2 is the second stereogram explosion diagram of the high current wiring terminal assembly convenient to install through the hole before assembling of the utility model, and Figure 1 The view is different from that of

[0014] Figure 3 is the stereogram of the high current wiring terminal assembly convenient to install through the hole after assembling when the utility model is applied. DETAILED DESCRIPTION

[0015] The utility model will be further explained in connection with the drawings:

[0016] As Figure 1 , Figure 2 and Figure 3As shown in the utility model, the large-current wiring terminal assembly convenient to install and perforate comprises a wiring terminal and an insulator, the wiring terminal comprises a terminal large-diameter section 1 and a terminal small-diameter section 5 which are connected to each other in the axial direction, the radial dimension of the terminal large-diameter section 1 is larger than that of the terminal small-diameter section 5, the terminal small-diameter section 5 is in the shape of a flat strip (i.e. its radial section is rectangular or approximately rectangular) and is provided with a terminal through hole 3 at the position close to the terminal large-diameter section 1, and the terminal through hole 3 penetrates through the opposite two large planes of the terminal small-diameter section 5, the insulator comprises a first insulator 7 and a second insulator 13, the axial one end of the first insulator 7 is increased in the peripheral dimension to form a first insulator boss 10 in the shape of a circle, the first insulator 7 is provided with a first insulator axial through hole 9 in the shape of a flat strip, and the first insulator axial through hole 9 penetrates through the first insulator boss 10, the first insulator 7 is provided with a first insulator radial through hole 8 at the position close to the first insulator boss 10, and the first insulator radial through hole 8 intersects and is perpendicular to the first insulator axial through hole 9, the axial one end of the second insulator 13 is increased in the peripheral dimension to form a second insulator boss 11 in the shape of a flat strip, the second insulator 13 is provided with a second insulator axial through hole 14 in the shape of a flat strip, and the second insulator axial through hole 14 penetrates through the second insulator boss 11, the second insulator 13 is provided with a second insulator radial through hole 12, and the second insulator radial through hole 12 intersects and is perpendicular to the second insulator axial through hole 14, the second insulator 13 passes through the first insulator axial through hole 9 from one end of the first insulator boss 10, the free end of the terminal small-diameter section 5 passes through the second insulator axial through hole 14 and passes out from the free end of the second insulator boss 11, and the stud of the connecting screw 2 passes through the first insulator radial through hole 8, the second insulator radial through hole 12 and the terminal through hole 3 and is connected with the nut 4.

[0017] As preferred, in order to facilitate the electrical connection of the terminal small-diameter section 5 with other components, the connecting through hole 6 is provided at the position close to the free end of the terminal small-diameter section 5 and penetrates through the opposite two large planes of the terminal small-diameter section 5; in order to facilitate the electrical connection of the terminal large-diameter section 1 with other components, the radial section of the terminal large-diameter section 1 is in the shape of a cylinder and the free end thereof is provided with a blind hole (not marked in the figure, generally used for welding, and a thread can also be provided for threaded connection); in order to facilitate the cooperation with the nut of the connecting screw 2, the side surface of the first insulator 7 which contacts the nut of the connecting screw 2 is in the shape of a plane.

[0018] As Figures 1-3As shown, in use, first, the connecting screw 2 is removed, the terminal, the first insulator 7 and the second insulator 13 are separated, then the first insulator 7 is placed on the inner side of the metal shell side wall 15 and the first insulator boss 10 is in close contact with the inner side of the metal shell side wall 15, the second insulator 13 is passed through the corresponding through hole on the metal shell side wall 15 and the first insulator axial through hole 9 from the outer side of the metal shell side wall 15, the second insulator boss 11 is in close contact with the outer side of the metal shell side wall 15, then the terminal small diameter section 5 is passed through the second insulator axial through hole 14 and the terminal large diameter section 1 is in close contact with the first insulator 7, then the stud of the connecting screw 2 is passed through the first insulator radial through hole 8, the second insulator radial through hole 12 and the terminal through hole 3 and connected with the nut 4, that is, the mechanical installation of the whole terminal assembly on the metal shell side wall 15 is completed, as shown in Figure 3 Then the terminal small diameter section 5 is electrically connected with other components outside through the connecting through hole 6, and the terminal large diameter section 1 is electrically connected with other elements inside the metal shell through the blind hole thereof, that is, the electrical connection of the terminal is completed.

[0019] The above embodiments are only preferred embodiments of the present application, and are not a limitation on the technical scheme of the present application, and any technical scheme which can be realized on the basis of the above embodiments without creative labor shall be considered to fall within the protection scope of the patent of the present application.

Claims

1. A high current terminal assembly for facilitated through-hole mounting comprising a terminal and an insulator, characterized in that: The terminal comprises an axially interconnected terminal large-diameter section and a terminal small-diameter section, the radial dimension of the terminal large-diameter section is larger than that of the terminal small-diameter section, the terminal small-diameter section is in a flat strip shape and is provided with a terminal through hole near the terminal large-diameter section, the terminal through hole penetrating through opposite two large planes of the terminal small-diameter section, the insulator comprises a first insulator and a second insulator, the outer peripheral dimension of an axial one end of the first insulator is increased to form a first insulator boss, the first insulator is provided with a flat first insulator axial through hole penetrating through the first insulator boss, the first insulator is provided with a first insulator radial through hole near the first insulator boss, the first insulator radial through hole and the first insulator axial through hole are perpendicular to each other, the outer peripheral dimension of an axial one end of the second insulator is increased to form a second insulator boss, the second insulator is provided with a flat second insulator axial through hole penetrating through the second insulator boss, the second insulator is provided with a second insulator radial through hole, the second insulator radial through hole and the second insulator axial through hole are perpendicular to each other, the second insulator passes through the first insulator axial through hole from the first insulator boss, the free end of the terminal small-diameter section passes through the second insulator axial through hole and passes out from the free end of the second insulator boss, the stud of the connecting screw passes through the first insulator radial through hole, the second insulator radial through hole and the terminal through hole and is connected with the nut.

2. The large current terminal assembly for facilitated through-hole mounting of claim 1, wherein: The terminal small-diameter section is provided with a connecting through hole near the free end thereof, the connecting through hole penetrating through opposite two large planes of the terminal small-diameter section.

3. The large current terminal assembly for facilitated through-hole mounting of claim 1, wherein: The radial section of the terminal large-diameter section is in a cylindrical shape and the free end thereof is provided with a blind hole.

4. The large current terminal assembly for facilitated through-hole mounting of any of claims 1-3, wherein: The surface of the first insulator which is in contact with the nut of the connecting screw is a plane. The radial section of the terminal large-diameter section is in a cylindrical shape and the free end thereof is provided with a blind hole. The surface of the first insulator which is in contact with the nut of the connecting screw is a plane.

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