CN202695334U

CN202695334U - Rear connection busbar of universal-type circuit breaker main loop

Info

Publication number: CN202695334U
Application number: CN 201220404935
Authority: CN
Inventors: 朱家逵; 付光; 郡丽君; 操春伟
Original assignee: PEOPLE ELECTRICAL APPLIANCES GROUP CO Ltd
Current assignee: Zhejiang People Ele Appliance Co ltd
Priority date: 2012-08-15
Filing date: 2012-08-15
Publication date: 2013-01-23
Anticipated expiration: 2022-08-15

Abstract

The utility model discloses a rear connection busbar of a universal-type circuit breaker main loop. The rear connection busbar comprises a wiring board and an installing plate which form a busbar main body. The wiring board and the installing plate are vertically arranged and a bottom end of the wiring board is fixedly connected with the installing plate through a welding mode. A weld joint is formed at a junction of the wiring board and the installing plate. A groove which passes through the whole wiring board is arranged on a center part of a top end of the wiring board, and a setting direction of the groove is the same with the setting direction of the weld joint; or a through hole which passes through the whole wiring board is arranged on a central section of the wiring board, and the setting direction of the through hole is the same with the setting direction of the weld joint. By using the rear connection busbar with the above structure, production cost of a product and a temperature rise during a usage process are effectively reduced; simultaneously, a current-carrying capacity of the product is increased.

Description

Connect busbar behind the omnipotent breaker major loop

Technical field

The utility model belongs to the breaker structure design field, be specifically related to a kind of omnipotent breaker major loop after connect busbar.

Background technology

Connect behind the omnipotent breaker major loop busbar for guarantee rated current normally by the time the major loop temperature rise must meet the check requirements of national GB14048.2 standard, usually adopt the fine copper metal material to make, and mostly be solid construction, connect the structure of busbar after common in the market as shown in Figure 1.The solid busbar that this employing fine copper metal material is made exists temperature rise, copper material consumption greatly then to cause cost high in actual use.

The utility model content

For the deficiency that connects the busbar existence behind traditional omnipotent breaker major loop, the utility model provides a kind of can effectively reduce the production cost of product and the temperature rise in the use procedure, can also improve simultaneously the product ampacity the omnipotent breaker major loop after connect busbar.

The technical scheme that realizes the utility model purpose is:

Connect busbar behind a kind of omnipotent breaker major loop, comprise the terminal block and the mounting panel that consist of the busbar main body; The bottom of the setting vertical with described mounting panel of described terminal block and terminal block is affixed by welding manner and mounting panel; Junction at described terminal block and mounting panel forms a weld seam;

The top middle portion of described terminal block is provided with the groove that connects whole terminal block, the setting party of described groove to the setting party of described weld seam to identical;

Perhaps the middle part of described terminal block is provided with the open-work that connects whole terminal block, the setting party of described open-work to the setting party of described weld seam to identical.

In the technique scheme, thereby described groove connects described terminal block in the direction perpendicular to mounting panel described terminal block is divided into independently two parts.

In the technique scheme, described terminal block is provided with wiring hole, the setting party of described wiring hole to the perpendicular direction that arranges of described weld seam.

In the technique scheme, described mounting panel is provided with installing hole; Described installing hole is shoulder hole.

In the technique scheme, the quantity of described wiring hole and installing hole is four.

The utlity model has positive effect:

(1) top middle portion of the terminal block in the utility model is provided with the groove that connects whole terminal block, the setting party of described groove to the setting party of described weld seam to identical; Perhaps the middle part of described terminal block is provided with the open-work that connects whole terminal block, the setting party of described open-work to the setting party of described weld seam to identical.For example an original overall volume is the 100mmX100mmX30mm terminal block, adopt said structure to cut out in the middle groove or the open-work of a wide 10mm, the terminal block that two thickness that stay are respectively 10mm is welded on the mounting panel, so just saved that a block is long-pending to be the pure copper material of 100mmX100mmX10mm, weight is about 2 jin, approximately 70000 yuan/tons of calculating of market price by present fine copper, every busbar just can reduce nearly 70 yuan of costs, and every circuit breaker connects busbar after need to using 8, then can save to amount to nearly 560 yuans.If, can be company and reduce cost approximately about 280,000 yuan in 1 year by 5000 calculating with annual production; Above-mentioned design philosophy comes from " skin effect " principle: when alternating current passes through conductor, because induction effect causes that CURRENT DISTRIBUTION is inhomogeneous on the cross-sectional area of conductor, the nearly conductive surface current density that heals is larger, the effective resistance of conductor increases, frequency is higher, skin effect is more remarkable, when the very high electric current of frequency passes through wire, can think that electric current only has the very thin one deck of conductive surface to flow through, this cross section that is equivalent to wire reduces, resistance increases, the core that namely can be regarded as wire does not almost have electric current to pass through, therefore just can remove this core with economical with materials and not affect the product use, so not only save material and reduced cost, and thereby the groove that can process by the centre or open-work dispel the heat and reduce product temperature rise in use, simultaneously owing to adding that the surface area of terminal block increases behind groove and the open-work, thereby also improved the ampacity of product.

(2) thus the described groove in the utility model is divided into independently two parts with described terminal block connecting described terminal block perpendicular to the direction of mounting panel, adopt this structure to reduce as much as possible the materials'use amount of product, and increased its surface area, thereby reached further the purpose that reduces production costs, reduces temperature rise and improve ampacity.

(3) the described terminal block in the utility model is provided with wiring hole, the setting party of described wiring hole to the perpendicular direction that arranges of described weld seam; And be provided with installing hole at described mounting panel; Described installing hole is shoulder hole.Fixing by the wiring and the installation that connect busbar after adopting this kind structure to be convenient to.

Description of drawings

Fig. 1 be traditional omnipotent breaker major loop after connect the structural representation of busbar;

Fig. 2 be the first structure in the utility model the omnipotent breaker major loop after connect the structural representation of busbar;

Fig. 3 be the second structure in the utility model the omnipotent breaker major loop after connect the structural representation of busbar;

Fig. 4 is a kind of perspective view of Fig. 3;

The perspective view of Fig. 5 when to be Fig. 4 from another angle observe;

Fig. 6 be the third structure in the utility model the omnipotent breaker major loop after connect the structural representation of busbar;

Reference numeral shown in the figure is:

1-busbar main body; The 2-terminal block; The 21-wiring hole; The 3-mounting panel; The 31-installing hole; The 4-weld seam; The 5-groove; The 6-open-work.

Embodiment

(embodiment 1)

Below in conjunction with Fig. 2 to Fig. 5 the first embodiment of the present utility model is elaborated:

As shown in Figure 2, connect busbar behind a kind of omnipotent breaker major loop, comprise the terminal block 2 and the mounting panel 3 that consist of busbar main body 1; Described terminal block 2 is affixed by welding manner and mounting panel 3 with the bottom of described mounting panel 3 vertical settings and terminal block 2; At described terminal block 2 weld seam 4 of junction formation with mounting panel 3; The top middle portion of described terminal block 2 is provided with the groove 5 that connects whole terminal block 2, the setting party of described groove 5 to the setting party of described weld seam 4 to identical.Said structure is according to " skin effect " principle design, even therefore terminal block 2 core materials are removed the use that also can not affect product, so not only save material and reduced cost, thereby and the reduction product temperature rise in use of can dispelling the heat by the groove 5 that the centre processes, simultaneously owing to adding the surface area increase of groove 5 rear terminal blocks 2, thereby having improved the product ampacity, effect is very obvious.

In order to reduce as much as possible the materials'use amount of product, increase the heat radiation gap, reduce production costs, reduce the purpose of temperature rise and raising ampacity to reach, further improvement as said structure, thereby described groove 5 connects described terminal block 2 in the direction perpendicular to mounting panel 3 described terminal block 2 is divided into independently two parts, as shown in Figure 3.

For the wiring that connects busbar after the convenience with install fixingly, the described terminal block 2 in the present embodiment is provided with wiring hole 21, the setting party of described wiring hole 21 to the perpendicular direction that arranges of described weld seam 4; Be provided with installing hole 31 at described mounting panel 3; Described installing hole 31 is shoulder hole; The quantity of described wiring hole 21 and installing hole 31 is four, as shown in Figure 4 and Figure 5.

(embodiment 2)

Fig. 6 has shown the second embodiment of the present utility model.The present embodiment is substantially the same manner as Example 1, and difference is: groove 5 is not set in the present embodiment, but is provided with the open-work 6 that connects whole terminal block 2 at the middle part of described terminal block 2, the setting party of described open-work 6 to the setting party of described weld seam 4 to identical.

Obviously, above-described embodiment of the present utility model only is for the utility model example clearly is described, and is not to be restriction to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all execution modes exhaustive.And these belong to apparent variation or the change that connotation of the present utility model extends out and still belong to protection range of the present utility model.

Claims

An omnipotent breaker major loop after connect busbar, comprise the terminal block (2) and the mounting panel (3) that consist of busbar main body (1); The bottom of described terminal block (2) setting vertical with described mounting panel (3) and terminal block (2) is affixed by welding manner and mounting panel (3); At the junction formation weld seam (4) of described terminal block (2) with mounting panel (3);

It is characterized in that:

The top middle portion of described terminal block (2) is provided with the groove (5) that connects whole terminal block (2), the setting party of described groove (5) to the setting party of described weld seam (4) to identical;

Perhaps the middle part of described terminal block (2) is provided with the open-work (6) that connects whole terminal block (2), the setting party of described open-work (6) to the setting party of described weld seam (4) to identical.
Omnipotent breaker major loop according to claim 1 after connect busbar, it is characterized in that: described groove (5) connect described terminal block (2) perpendicular to the direction of mounting panel (3) thus described terminal block (2) is divided into independently two parts.
Omnipotent breaker major loop according to claim 1 and 2 after connect busbar, it is characterized in that: described terminal block (2) is provided with wiring hole (21), the setting party of described wiring hole (21) to the perpendicular direction that arranges of described weld seam (4).
Omnipotent breaker major loop according to claim 3 after connect busbar, it is characterized in that: described mounting panel (3) is provided with installing hole (31); Described installing hole (31) is shoulder hole.
Omnipotent breaker major loop according to claim 4 after connect busbar, it is characterized in that: the quantity of described wiring hole (21) and installing hole (31) is four.