CN202142817U

CN202142817U - Junction box

Info

Publication number: CN202142817U
Application number: CN201120226036U
Authority: CN
Inventors: 丁计飞; 谭国栋
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2011-06-30
Filing date: 2011-06-30
Publication date: 2012-02-08
Anticipated expiration: 2021-06-30

Abstract

Provided is a junction box, comprising a metal box body, at least one shielding lead having one end arranged in the metal box body, and at least one metal connecting plate arranged in the metal box body, wherein the shielding layer of the metal box body and the shielding lead are connected via the metal connecting plate. The junction box can reduce the electromagnetic interference thereof with other electronic devices and is unlikely to be interfered by other electromagnetic signals.

Description

A kind of terminal box

Technical field

The utility model relates to a kind of terminal box.

Background technology

Terminal box is parts that often are used with motor, and terminal box is installed in usually on the motor and with motor and is electrically connected, and the lead of outside stretches in the terminal box, through being electrically connected of terminal box realization outer lead and motor.But during the motor operation, the terminal box place can produce some unnecessary electromagnetic signals, and to other electronic equipment generation electromagnetic interference of periphery, simultaneously, terminal box also receives the interference of other electromagnetic signal easily.

The utility model content

The utility model provides a kind of terminal box for solving the problem that above-mentioned terminal box produces electromagnetic interference and receives electromagnetic interference easily, and this terminal box can reduce the electromagnetic interference to other electronic equipment, is not vulnerable to the interference of other electromagnetic signal simultaneously.

The terminal box of the utility model; Comprise: shielded conductor and at least one that metal case, at least one one end are installed in the metal case are installed in the metallic interconnect in the metal case, and the screen of metal case and shielded conductor links to each other through said metallic interconnect.

Further; Said metallic interconnect is at least two; Each metallic interconnect is provided with the notch with opening that equates with the quantity of shielded conductor; Each metallic interconnect is axially placed along shielded conductor in order, and every shielded conductor is stuck in the notch of each metallic interconnect and said screen contacts with the edge of notch, block a shielded conductor a notch opening direction and to block the opening direction of other at least one notch of this shielded conductor opposite.

Further; Said terminal box also comprises the becket that equates with shielded conductor quantity; Each becket is provided with one along its axially extended breach; Said metallic interconnect is at least two; Each metallic interconnect is provided with the notch with opening that equates with the quantity of shielded conductor, and each metallic interconnect is axially placed along shielded conductor successively, and becket is set on the screen of a shielded conductor and is stuck in the notch of each metallic interconnect; Each becket respectively with corresponding screen and notch Elastic Contact, the opening direction of a notch that blocks a shielded conductor is opposite with the opening direction of other at least one notch that blocks this shielded conductor.

Further, said becket is a copper ring.

Further; Said terminal box also comprises first rubber stopper and second rubber stopper that is installed in the metal case; All metallic interconnects are between first rubber stopper and second rubber stopper; Shielded conductor passes from first rubber stopper and second rubber stopper, and first rubber stopper contacts with metal case and shielded conductor extruding, and second rubber stopper contacts with metal case and shielded conductor extruding.

Further; Said shielded conductor is three; Said metallic interconnect is four; Be respectively: first metallic interconnect, second metallic interconnect, the 3rd metallic interconnect and the 4th metallic interconnect; The opening direction of three notches of each metallic interconnect is identical, and first metallic interconnect, second metallic interconnect, the 3rd metallic interconnect and the 4th metallic interconnect are placed in order, and the opening direction of the notch of first metallic interconnect is identical with the opening direction of the notch of the 3rd metallic interconnect; The opening direction of the notch of second metallic interconnect is identical with the opening direction of the notch of the 4th metallic interconnect, and the opening direction of the notch of the opening direction of the notch of first metallic interconnect and second metallic interconnect is opposite.

Further; The annular outer surface of first rubber stopper is provided with the first annular extrusion muscle of a plurality of projections; The annular outer surface of second rubber stopper is provided with the second annular extrusion muscle of a plurality of projections, and the first annular extrusion muscle all contacts with the metal case extruding with the second annular extrusion muscle.

The beneficial effect of the utility model is: owing to be provided with metallic interconnect; Metallic interconnect links to each other with the screen of metal case and shielded conductor respectively; Be metal case with screen between be electrically connected; Therefore metal case also has function of shielding, thus this metal case both the electromagnetic signal of maskable terminal box also can shield the electromagnetic interference of other electromagnetic signal simultaneously to the electromagnetic interference of other electronic equipment to this terminal box.

Description of drawings

Fig. 1 is the sectional structure sketch map of the terminal box of a kind of execution mode of the utility model;

Fig. 2 is the structural representation of first metallic interconnect in a kind of execution mode of the utility model;

Fig. 3 is the structural representation of becket in a kind of execution mode of the utility model.

Embodiment

Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with accompanying drawing and execution mode, the utility model is further elaborated.Should be appreciated that embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

Like Fig. 1-shown in Figure 3; The terminal box of a kind of execution mode of the utility model; Comprise: shielded conductor 2 and at least one that metal case 1, at least one one end are installed in the metal case 1 are installed in the metallic interconnect in the metal case 1, and the screen of metal case 1 and shielded conductor 2 links to each other through said metallic interconnect.

As preferred embodiment a kind of; Said metallic interconnect is at least two; Each metallic interconnect is provided with the notch with opening 3 that equates with the quantity of shielded conductor 2; Every shielded conductor 2 is stuck in the notch 3 of each metallic interconnect and said screen is connected with notch 3; Each metallic interconnect is axially placed along shielded conductor 2 in order, and the opening direction of a notch 3 that blocks a shielded conductor 2 is opposite with the opening direction of other at least one notch 3 that blocks this shielded conductor 2.

Through at least two metallic interconnects are set; And the notch 3 of each metallic interconnect is oppositely arranged; Be that every shielded conductor 2 is fixing from two relative directions chuckings by at least two metallic interconnects, can carry out better fixingly, make its fixing metal case 1 in more firm shielded conductor 2.

As preferred embodiment a kind of; Said terminal box also comprises the becket 4 that equates with shielded conductor 2 quantity; Each becket 4 is provided with one along its axially extended breach 5; Becket 4 is set on the screen of a shielded conductor 2 and is stuck in these shielded conductor 2 pairing each notches 3 (i.e. this shielded conductor 2 passed each notch 3), each becket 4 respectively with corresponding screen and notch 3 Elastic Contact.Because becket 4 is provided with breach 5; Do the time spent and can produce elasticity when becket 4 receives external force; This elasticity makes becket 4 and screen and notch 3 can both keep Elastic Contact; Make between the inwall of metallic interconnect and metal case 1 to keep Elastic Contact, make the installation of metallic interconnect in metal case 1 more firm, make the electrical connection better effects if between screen, becket 4, metallic interconnect and the metal case 1.

As preferred embodiment a kind of, said becket 4 is a copper ring.The conductive effect of copper ring is more excellent.

As preferred embodiment a kind of; Said terminal box also comprises first rubber stopper 6 and second rubber stopper 7 that is installed in the metal case 1; Shielded conductor 2 passes from first rubber stopper 6 and second rubber stopper 7; All metallic interconnects are between first rubber stopper 6 and second rubber stopper 7, and first rubber stopper 6 contacts with metal case 1 and shielded conductor 2 extruding, and second rubber stopper 7 contacts with metal case 1 and shielded conductor 2 extruding.First rubber stopper 6 and second rubber stopper 7 have a plurality of effects, both can strengthen the steadiness that shielded conductor 2 and each metallic interconnect are installed in metal case 1, and certain waterproof action is arranged again, can also the reinforced insulation performance.Further preferably; The annular outer surface of first rubber stopper 6 is provided with the first annular extrusion muscle 15 of a plurality of projections; The second annular extrusion muscle, 16, the first annular extrusion muscle 15 that the annular outer surface of second rubber stopper 7 is provided with a plurality of projections all contact with metal case 1 extruding with the second annular extrusion muscle 16.Through the first annular extrusion muscle 15 and the second annular extrusion muscle 16 are set, make to cooperate closelyr between first rubber stopper 6 and second rubber stopper 7 and the metal case 1, sealing effectiveness is better.

As preferred embodiment a kind of; Said shielded conductor 2 is three; Said metallic interconnect is four; Be respectively: first metallic interconnect 10, second metallic interconnect 11, the 3rd metallic interconnect 12 and the 4th metallic interconnect 13; The shape of each metallic interconnect is identical, the opening direction of three notches 3 of each metallic interconnect identical (that is: as far as same metallic interconnect, the opening direction of three notches 3 on it is identical); First metallic interconnect 10, second metallic interconnect 11, the 3rd metallic interconnect 12 and the overlapping in order placement of the 4th metallic interconnect 13; The opening direction of the notch 3 of first metallic interconnect 10 and the 3rd metallic interconnect 12 is identical, and the opening direction of the notch 3 of second metallic interconnect 11 and the 4th metallic interconnect 13 is identical, and the opening direction of the notch 3 of first metallic interconnect 10 and second metallic interconnect 11 is opposite.In this execution mode; As shown in Figure 1; The opening direction of three notches 3 of first metallic interconnect 10 is downward; The opening direction of three notches 3 of second metallic interconnect 11 makes progress, and the opening direction of three notches 3 of the 3rd metallic interconnect 12 is downward, and the opening direction of three notches 3 of the 4th metallic interconnect 13 upwards.Through four metallic interconnects are set, and the notch 3 of four metallic interconnects both strengthened the fixed effect of shielded conductor 2 from different direction chucking shielded conductors 2, strengthened the electrical connection properties between screen and the metal case 1 again.

The structure of shielded conductor 2 is following: the innermost layer is a metal conductive wire, and the metal conductive wire outside is first insulating barrier, and first insulating barrier outside is a screen, and the screen outside is second insulating barrier.Metallic interconnect is contacted with screen, can second insulating barrier of relevant position be peelled off.The end that is positioned at metal case 1 of the metal conductive wire of each shielded conductor 2 inside links to each other with the binding post of metal case 1.During use, the binding post in the metal case 1 links to each other with the binding post of other parts again, to realize electrical connection.

The above is merely the preferred embodiments of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.

Claims

1. terminal box; It is characterized in that; Comprise: shielded conductor and at least one that metal case, at least one one end are installed in the metal case are installed in the metallic interconnect in the metal case, and the screen of metal case and shielded conductor links to each other through said metallic interconnect.

2. terminal box as claimed in claim 1; It is characterized in that; Said metallic interconnect is at least two; Each metallic interconnect is provided with the notch with opening that equates with the quantity of shielded conductor; Each metallic interconnect is axially placed along shielded conductor in order, and every shielded conductor is stuck in the notch of each metallic interconnect and said screen contacts with the edge of notch, block a shielded conductor a notch opening direction and to block the opening direction of other at least one notch of this shielded conductor opposite.

3. terminal box as claimed in claim 1; It is characterized in that; Said terminal box also comprises the becket that equates with shielded conductor quantity; Each becket is provided with one, and said metallic interconnect is at least two along its axially extended breach, and each metallic interconnect is provided with the notch with opening that equates with the quantity of shielded conductor; Each metallic interconnect is axially placed along shielded conductor successively; Becket is set on the screen of a shielded conductor and is stuck in the notch of each metallic interconnect, each becket respectively with corresponding screen and notch Elastic Contact, the opening direction of a notch that blocks a shielded conductor is opposite with the opening direction of other at least one notch that blocks this shielded conductor.

4. terminal box as claimed in claim 3 is characterized in that, said becket is a copper ring.

5. like claim 2 or 3 described terminal boxes; It is characterized in that; Said terminal box also comprises first rubber stopper and second rubber stopper that is installed in the metal case, and all metallic interconnects are between first rubber stopper and second rubber stopper, and shielded conductor passes from first rubber stopper and second rubber stopper; First rubber stopper contacts with metal case and shielded conductor extruding, and second rubber stopper contacts with metal case and shielded conductor extruding.

6. like claim 2 or 3 described terminal boxes; It is characterized in that; Said shielded conductor is three; Said metallic interconnect is four, is respectively: first metallic interconnect, second metallic interconnect, the 3rd metallic interconnect and the 4th metallic interconnect, and the opening direction of three notches of each metallic interconnect is identical; First metallic interconnect, second metallic interconnect, the 3rd metallic interconnect and the 4th metallic interconnect are placed in order; The opening direction of the notch of first metallic interconnect is identical with the opening direction of the notch of the 3rd metallic interconnect, and the opening direction of the notch of second metallic interconnect is identical with the opening direction of the notch of the 4th metallic interconnect, and the opening direction of the notch of the opening direction of the notch of first metallic interconnect and second metallic interconnect is opposite.

7. terminal box as claimed in claim 5; It is characterized in that; The annular outer surface of first rubber stopper is provided with the first annular extrusion muscle of a plurality of projections; The annular outer surface of second rubber stopper is provided with the second annular extrusion muscle of a plurality of projections, and the first annular extrusion muscle all contacts with the metal case extruding with the second annular extrusion muscle.