CN203761187U

CN203761187U - Terminal forward opening distribution explosion-proof motor connecting box

Info

Publication number: CN203761187U
Application number: CN201420054260.2U
Authority: CN
Inventors: 魏家盛; 马建设; 吕军阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-01-28
Filing date: 2014-01-28
Publication date: 2014-08-06
Anticipated expiration: 2024-01-28

Abstract

The utility model belongs to a low voltage explosion-proof electrical field, and in particular relates to a terminal forward opening distribution explosion-proof motor connecting box. The connecting box is mainly characterized in that the distribution mode of connecting terminals of the existing low voltage explosion-proof motor connecting box is improved; six connecting terminals are in forward opening arrangement; the distance between head and tail connecting terminals and a middle connecting terminal is greater than the distance between other connecting terminals; a grounding bolt is arranged between two temperature measurement terminals; an inner cavity space of the improved connecting box is effectively used; a GB3836 specification is met; the size is reduced; and the manufacturing cost is reduced.

Description

Terminal forward is opened distributed flame-proof electric motor terminal box

Technical field

The utility model belongs to low-voltage explosion-proof technical field of electricity, relates to flame-proof electric motor terminal box, and specifically a kind of terminal forward is opened distributed flame-proof electric motor terminal box.

Background technology

Existing low-voltage explosion-proof motor connecting cartridge, as the terminal box of YB series, six binding posts in box, its mutual alignment is arranged and is adopted concentric circles mode to distribute, five binding posts are taking middle part binding post as the center of circle, first, two binding posts in end are arranged on lead wire outlet one side, line is vertical corresponding with lead wire outlet central axis, distance between six binding posts is completely equal, in terminal box, a side is also provided with earth stud and two thermometric terminal (see figure 1)s, by the regulation of GB3836, between binding post live part, between live part and non-live part and and inwall between spacing must be greater than the distance of regulation, while being 1140V as rated voltage, must be greater than 18mm, and six binding posts are concentric circles and distribute too concentrated, and earth stud is arranged on a side, cause the intracavity space of terminal box rationally not utilize, cause terminal box overall dimension larger, the defect that manufacturing cost is high.

Summary of the invention

Inventor is being engaged in for many years in the production and operating activities of low-voltage explosion-proof electrical equipment, find that existing low-voltage explosion-proof motor connecting cartridge exists certain defect, through investigation, explore and improve, object is to provide a kind of terminal forward to open distributed flame-proof electric motor terminal box, technical solution problem preferably, overcomes the defect of existence.

Technical solution adopted in the utility model is that a kind of terminal forward of design is opened distributed flame-proof electric motor terminal box, its structure comprises: low-voltage explosion-proof motor connecting cartridge, box wall, installing hole, six binding posts, an earth stud, two thermometric terminals, lead wire outlet, wherein, with lead wire outlet for before just, six binding post mutual alignments are forward and open shape setting, first, two binding posts in end are arranged on lead wire outlet one side, line is vertical corresponding with lead wire outlet central axis, middle part binding post invariant position, first, spacing between two, end binding post and middle part binding post is greater than first binding post and second binding post, second binding post and the 3rd binding post, the 3rd binding post and the 4th binding post, distance between the 4th binding post and last binding post and middle part binding post and the 3rd binding post, the spacing of two thermometric terminals suitably expands, earth stud is arranged near two thermometric terminals.

The utility model adopts technique scheme to be improved existing low-voltage explosion-proof motor connecting cartridge, due to six binding posts are distributed by the original concentric circles that is, change forward into and open shape distribution setting, and spacing modulation in addition between pair of wire connection terminals, earth stud is arranged between thermometric terminal, thereby change the mutual alignment between binding post, thermometric terminal and earth stud, terminal box intracavity space is utilized effectively, under the prescribed condition that meets GB3836, terminal box inner chamber is reduced, overall dimension reduces, and manufacturing cost reduces.

Brief description of the drawings

Fig. 1 represents existing low-voltage explosion-proof motor connecting cartridge structural representation;

Fig. 2 represents that the utility model terminal forward opens distributed flame-proof electric motor junction box structure schematic diagram.

Embodiment

In conjunction with the accompanying drawings and embodiments, further illustrate concrete structure of the present utility model.

The utility model terminal forward is opened the embodiment of distributed flame-proof electric motor terminal box, referring to Fig. 2, its structure comprises: the box wall 1 of low-voltage explosion-proof motor connecting cartridge, installing hole 2, six binding posts 3, an earth stud 4, two thermometric terminals 5, lead wire outlet 6, wherein, with lead wire outlet 6 for before just, six binding post 3 mutual alignments are forward and open shape distribution setting, first, two line terminals 3.1 in end, 3.2, be arranged on the nearly rear side of lead wire outlet, line is vertical corresponding with lead wire outlet 6 central axis, middle part binding post invariant position, first, two binding posts 3.1 in end, 3.2, and the spacing Y between the binding post of middle part is greater than first binding post 3.1 and second binding post, second binding post and the 3rd binding post, the 3rd binding post and the 4th binding post, the 4th binding post and last binding post, and distance X between middle part binding post and the 3rd binding post, the spacing of two thermometric terminals 5 suitably expands, earth stud 4 is arranged between two thermometric terminals 5.

Claims

1. a terminal forward is opened distributed flame-proof electric motor terminal box, its structure comprises: low-voltage explosion-proof motor connecting cartridge, box wall, installing hole, six binding posts, an earth stud, two thermometric terminals, lead wire outlet, it is characterized in that with lead wire outlet for before just, six binding post mutual alignments are forward and open shape setting, first, two binding posts in end are arranged on lead wire outlet one side, line is vertical corresponding with lead wire outlet central axis, middle part binding post invariant position, first, spacing between two, end binding post and middle part binding post is greater than first binding post and second binding post, second binding post and the 3rd binding post, the 3rd binding post and the 4th binding post, distance between the 4th binding post and last binding post and middle part binding post and the 3rd binding post, earth stud is arranged between two thermometric terminals.