CN204257564U - The bridge-shaped contact of universal circuit breaker drawer seat - Google Patents

The bridge-shaped contact of universal circuit breaker drawer seat Download PDF

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Publication number
CN204257564U
CN204257564U CN201420609617.9U CN201420609617U CN204257564U CN 204257564 U CN204257564 U CN 204257564U CN 201420609617 U CN201420609617 U CN 201420609617U CN 204257564 U CN204257564 U CN 204257564U
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CN
China
Prior art keywords
conducting strip
conducting
bridge
shaped contact
copper
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Active
Application number
CN201420609617.9U
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Chinese (zh)
Inventor
蒋礼
张应波
徐晓初
杨颖杰
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Zhejiang Chint Electrics Co Ltd
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Zhejiang Chint Electrics Co Ltd
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Priority to CN201420609617.9U priority Critical patent/CN204257564U/en
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Publication of CN204257564U publication Critical patent/CN204257564U/en
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Abstract

A bridge-shaped contact for universal circuit breaker drawer seat, comprise tactile bridge bracket and relative two the conducting strip rows being arranged on tactile bridge bracket both sides, tactile bridge bracket and two conducting strips rows form the H type structure with two openings; At least 2 conducting strip groups be arranged side by side are drawn together in described each conducting strip package, and each conducting strip group comprises two independently conducting strips, form space between two conducting strips of conducting strip group after assembling; Conducting strip group correspondence on two conducting strip rows is arranged, and the space that extension spring two ends are each passed through two upper corresponding pair of conductive sheet groups arranged of conducting strip row is connected with conducting strip group.The conducting strip group of the utility model bridge-shaped contact can ensure the uniform current density of bridge-shaped contact conducting strip, the conducting strip of conducting strip group only need carry out once simple punch forming, make the conducting strip generalization of bridge-shaped contact, simplify processing, product temperature rise can also be reduced to a certain extent.

Description

The bridge-shaped contact of universal circuit breaker drawer seat
Technical field
The utility model belongs to Low Voltage Electrical Apparatus, particularly relates to a kind of bridge-shaped contact of universal circuit breaker drawer seat.
Background technology
Intelligent universal circuit breaker is the air circuit of China's independent research nineties in last century; there is comparatively complete defencive function; protection act electric current is comparatively accurate; intelligence degree is higher; rated operational voltage is up to AC690V/50Hz, and rated current is maximum to 6300A, is mainly used in distribution network and is used for distributing electric energy; protection circuit and power-supply device, from the harm of overload, short circuit and under voltage, also can be used to the harm protecting motor from overload, short circuit, under voltage.Also can be used as circuit under normal condition infrequently to change and the use of infrequently starting of motor.
The bridge-shaped contact of omnipotent breaker is the important pivot that electric conductor motion parts (omnipotent breaker body) and stationary part (universal circuit breaker drawer seat) are coupled together, bridge-shaped contact is made up of the many groups conducting strip being arranged on support both sides, and the pulling force provided by many extension springs of its inside makes bridge-shaped contact be connected with breaker body copper bar and drawout chassis conducting copper close contact.
The conducting strip of what the list group conducting strip of existing bridge-shaped contact of universal circuit breaker adopted is two structure full symmetrics is close together, in the middle of two conducting strips, fluting passes for the extension spring of single group conducting strip, also just result in the conducting strip poor universality of this structure, processed complex, and conducting strip fluting place current density causes greatly the current density of conducting strip uneven.
Summary of the invention
The purpose of this utility model is the defect overcoming prior art, provides a kind of processing technology simple, the bridge-shaped contact of the universal circuit breaker drawer seat that cost is low.
For achieving the above object, the utility model have employed following technical scheme:
A bridge-shaped contact for universal circuit breaker drawer seat, comprise tactile bridge bracket 44 and relative two the conducting strip rows 43 being arranged on tactile bridge bracket 44 both sides, tactile bridge bracket 44 and two conducting strips rows 43 form the H type structure with two openings; Described each conducting strip row 43 comprises at least 2 conducting strip groups 41 be arranged side by side, and each conducting strip group 41 comprises two independently conducting strips 411, forms space 413 between two conducting strips 411 of conducting strip group 41 after assembling; Conducting strip group 41 correspondence on two conducting strip rows 43 is arranged, and the space 413 that extension spring 42 two ends are each passed through the corresponding pair of conductive sheet group 41 arranged on two conducting strip rows 43 is connected with conducting strip group 41.
Further, between two conducting strips 411 of described conducting strip group 41, be provided with pad, separated by pad 412 and form space 413.
Further, the side between two conducting strips 411 of described conducting strip group 41 is provided with conducting strip boss, and two conducting strips 411 form space 413 by conducting strip boss.
Further, conducting strip 411 is provided with conducting strip installing hole 4113, pad 412 is provided with said spacer mounting bores 4121, conducting strip installing hole 4113 and said spacer mounting bores 4121 are oppositely arranged.
Further, described conducting strip group 41 also comprises extension spring installation shaft 414, and the sidewall of one end that conducting strip 411 is connected with conducting copper 3 is provided with the buckle 4111 and groove 4112 that coordinate with draw-in groove 311 and the side 312 of conducting copper 3 respectively; The opposite side of conducting strip 411 is provided with the extension spring groove 4114 installing extension spring installation shaft 414.
Further, the conducting copper 3 be connected with bridge-shaped contact comprises between two pieces of copper bars independently be arranged in parallel, 31, two pieces of copper bars 31 and is provided with cushion block 32, and two pieces of copper bars 31 form gap 34 by cushion block 32.
Further, cushion block 32 is provided with second air-vent 321 of being convenient to dispel the heat.
Further, the side outside two pieces of copper bars 31 of conducting copper 3 is respectively equipped with the support 33 installing conducting copper, the side of support 33 outside copper bar 31 stretches out.
Further, the tactile bridge bracket 44 of bridge-shaped contact 4 is provided with the first air-vent 441.
The conducting strip group of the utility model bridge-shaped contact can ensure the uniform current density of bridge-shaped contact conducting strip, the conducting strip of conducting strip group only need carry out once simple punch forming, make the conducting strip generalization of bridge-shaped contact, simplify processing, product temperature rise can also be reduced to a certain extent.
Accompanying drawing explanation
Fig. 1 is the stereogram of the utility model universal circuit breaker drawer seat;
Fig. 2 is the assembling stereogram of the utility model insulating base;
Fig. 3 is the assembling schematic diagram of the utility model insulating base;
Fig. 4 is the end view of the utility model Fig. 3;
Fig. 5 is the schematic diagram that the utility model conducting copper is connected with bridge-shaped contact and complete cabinet copper busbar;
Fig. 6 is the schematic diagram that the utility model bridge-shaped contact is connected with conducting copper and breaker body copper bar;
Fig. 7 is the stereogram of the utility model conducting copper;
Fig. 8 is the structural representation of the utility model conducting copper;
Fig. 9 is the structural representation of the utility model conducting copper;
Figure 10 is the structural representation of the utility model bridge-shaped contact;
Figure 11 is the rearview of the utility model Figure 10;
Figure 12 is the structural representation of the utility model bridge-shaped contact;
Figure 13 is the structural representation of the utility model bridge-shaped contact;
Figure 14 is the stereogram of the utility model conducting strip group;
Figure 15 is another stereogram of the utility model conducting strip group;
Figure 16 is the structural representation of the utility model conducting strip group.
Embodiment
Below in conjunction with the embodiment that accompanying drawing 1 to 16 provides, further illustrate the embodiment of universal circuit breaker drawer seat of the present utility model and conducting copper thereof.Universal circuit breaker drawer seat of the present utility model and conducting copper thereof are not limited to the description of following examples.
As shown in figures 1 to 6, three insulating bases 2 are installed side by side in the drawout chassis 1 of omnipotent breaker, each insulating base 2 is provided with two conducting coppers 3 for connecting breaker and complete cabinet copper busbar, insulating base 2 is provided with bridge-shaped contact 4, conducting copper 3 one end is connected with circuit breaker by bridge-shaped contact 4, and the other end can be connected with complete cabinet copper busbar 5.
As Figure 7-9, conducting copper 3 of the present utility model comprises between two pieces of copper bars independently be arranged in parallel, 31, two pieces of copper bars 31 and forms gap 34 by cushion block 32, the side outside two pieces of copper bars 31 is respectively equipped with the support 33 installing conducting copper.Cushion block 32 is arranged on the one end be connected with bridge-shaped contact 4, and gap 34 is positioned at the one end be connected with complete cabinet copper busbar 5, and cushion block 32 is provided with the second air-vent 321 being convenient to fan heat.The region being positioned at gap 34 at two pieces of copper bars 31 is provided with the connecting hole 36 be connected with complete cabinet copper busbar 5, the outside of one end that two pieces of copper bars 31 are connected with bridge-shaped contact 4 is provided with the draw-in groove 311 coordinated with bridge-shaped contact 4.On support 33, copper bar 31, cushion block 32, correspondence position is provided with installing hole, and rivet 35 is fixed through the installing hole riveted on support 33, copper bar 31, cushion block 32 successively.The side of support 33 outside copper bar 31 stretches out, comprise the first brace 331 and second brace 332 connected vertically with the first brace that are connected with copper bar 31, be outward extended with fixing ear 333 respectively at the second brace 332 two ends, fixing ear 333 is provided with the fixing hole 334 coordinating with insulating base 2 and install.
Cushion block 32 can adopt different materials, as long as make to leave formation gap, space 34 between two pieces of copper bars 31, preferably adopts the material that cost is low, heat resistance is high, greatly can reduce the cost of conducting copper 3.Adopt cushion block 32 to be a kind of preferred embodiments, such that the conducting copper 3 of the application is easy to process, formation efficiency is high, cost is low.In addition also can adopt the mode increasing boss on copper bar 31, after two pieces of copper bars 31 are superposed, between two pieces of copper bars 31, leave gap 34.Pin can also be adopted between two pieces of copper bars 31 of superposition to do to support the mode slot milling formation gap 34 adopting rivet.
The contact-making surface of conducting copper of the present utility model and complete cabinet copper busbar rises in four (the interior outsides of two pieces of copper bars 31), can effectively reduce product temperature rise.In addition, two pieces of copper bars increase a cushion block, can greatly reduce the copper consumption of product, and this copper bar processing technology is simple, also reduces the processing cost of copper bar simultaneously.
As shown in Figure 10-16, bridge-shaped contact 4 of the present utility model comprises tactile bridge bracket 44 and relative two the conducting strip rows 43 being arranged on tactile bridge bracket 44 both sides, tactile bridge bracket 44 and two conducting strips rows 43 form the H type structure of droping to the ground with two openings, and two openings comprise the first opening 45 be connected with conducting copper 3 and the second opening 46 be connected with breaker body copper bar 6.The height H 1 of described first opening 45 is greater than the height H 2 of the second opening 46, and the thickness of the conducting copper 3 be namely connected with the first opening 45 and the second opening 46 is respectively greater than the thickness of breaker body copper bar 6.The bridge-shaped contact 4 of the present embodiment when ensureing that bridge-shaped contact and the conducting copper 3 at two ends and the contact area of breaker body copper bar 6 are constant, can reduce the thickness of breaker body copper bar, greatly reducing the copper consumption of product, reduces production cost.When being particularly provided with gap 34 on conducting copper 3.Certainly, the height H 1 that bridge-shaped contact 4 of the present utility model also can be designed as the first opening 45 is less than the height H 2 of the second opening 46, namely the thickness of conducting copper 3 is less than greatly the thickness of breaker body copper bar 6, the conducting copper thickness of drawout chassis can be reduced when breaker body copper bar thickness is constant, reduce the copper consumption of product.As long as the height H 2 touching the height H 1 of the first opening 45 of bridge bracket 44 and the second opening 46 is not etc.
The tactile bridge bracket 44 of bridge-shaped contact 4 is provided with the first air-vent 441, described first air-vent 441 is arranged on the region on tactile bridge bracket 44 between two conducting strip rows 43, in the middle of conducting copper, correspondence position is provided with the air-vent corresponding with bridge-shaped contact 4, the heat that bridge-shaped contact junction is produced is flowed out (principle that when gases are heated, they expand) from air-vent automatically by air, omnipotent breaker is inner reaches good air circulation with outside, thus reaches the object reducing product temperature rise.If what conducting copper adopted is the conducting copper 3 that the utility model two pieces of copper bars 31 and cushion block 32 are formed, then ventilation mouth can be opened on cushion block 32, and namely the first air-vent 441 of bridge-shaped contact 4 is corresponding with the second air-vent 321 on cushion block 32.Certainly; the conducting copper of other structure is offered the air-vent corresponding with the first air-vent 441 be also fine; such as air-vent is set on the conducting copper be made up of single copper billet, or is slotted by single copper billet and the conducting copper that forms arranges air-vent all belong to protection range of the present utility model.As shown in Fig. 7,9, on conducting copper 3, correspondence position is provided with second air-vent 321 corresponding with the first air-vent 441, here corresponding not refers to that air-vent must one_to_one corresponding, just represents that region that air-vent is arranged is corresponding and can form gas-permeable channels between the first air-vent 441 and the second air-vent 321; And air-vent can be multiple little air-vent also can be one or more gross blow hole.The utility model is provided with the bridge-shaped contact of air-vent.Effectively can not only reduce the temperature rise of omnipotent breaker product, can also suitably reduce bridge-shaped contact conducting strip quantity, reduce the production cost of product to a certain extent.Certainly, by increasing air-vent on the conducting strip 411 of bridge-shaped contact, conducting strip group 41, conducting strip 411 can also arrange air-vent; The rack plate 442 of tactile bridge bracket 44 surrounding increases air-vent; Insulating base 2 increase air-vent or adopts the modes such as hollow conducting copper, reaching the object of air circulation.
Described each conducting strip row 43 comprises at least 2 conducting strip groups 41 be arranged side by side, and each conducting strip group 41 comprises two and independently separates formation space 413 by pad 412 between conducting strip 411, two conducting strips 411; Conducting strip group 41 correspondence on two conducting strip rows 43 is arranged, and the space 413 that extension spring 42 two ends are each passed through the corresponding pair of conductive sheet group 41 arranged on two conducting strip rows 43 is connected with the extension spring installation shaft 414 be arranged in conducting strip group 41.Conducting strip 411 is provided with conducting strip installing hole 4113, pad 412 is provided with said spacer mounting bores 4121, conducting strip installing hole 4113 and said spacer mounting bores 4121 are oppositely arranged and disposable assembling can improve efficiency of assembling.The sidewall of one end that conducting strip 411 is connected with conducting copper 3 is provided with the buckle 4111 and groove 4112 that coordinate with draw-in groove 311 and the side 312 of conducting copper 3 respectively; The opposite side of conducting strip 411 is provided with the extension spring groove 4114 installing extension spring installation shaft 414.The conducting strip of the utility model bridge-shaped contact 4 can ensure the uniform current density of bridge-shaped contact conducting strip, conducting strip only need carry out once simple punch forming, two conducting strip structures of conducting strip group are identical, make the conducting strip generalization of bridge-shaped contact, simplify processing, product temperature rise can also be reduced to a certain extent.Conducting strip of the present utility model also can adopt to increase boss structure or welding on conducting strip, riveted construction forms space 413, preferably adopts the mode of pad 412 effectively can reduce difficulty of processing, improves efficiency of assembling.
As Figure 1-3, when mounted, conducting copper 3 and bridge-shaped contact 4 are arranged on insulating base 2 drawout chassis of omnipotent breaker of the present utility model; The panel 22 of insulating base 2 is provided with conducting copper installing hole, and one end of conducting copper 3 is inserted in conducting copper installing hole, and the support 33 of conducting copper 3 is fixedly connected with by screw with panel 22.Multiple insulating base 2 is installed in drawout chassis 1 side by side based on sidewall 21.Conducting copper 3 is vertical with the sidewall 21 of insulating base 2 to be arranged, and is convenient to the temperature reducing bridge-shaped contact 4, reduces product temperature rise.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection range of the present utility model.

Claims (9)

1. the bridge-shaped contact of a universal circuit breaker drawer seat, it is characterized in that: comprise tactile bridge bracket (44) and relative two conducting strips row (43) being arranged on tactile bridge bracket (44) both sides, tactile bridge bracket (44) and two conducting strips are arranged (43) and formed the H type structure with two openings; Described each conducting strip row (43) comprises at least 2 conducting strip groups (41) be arranged side by side, each conducting strip group (41) comprises two independently conducting strips (411), forms space (413) between two conducting strips (411) of conducting strip group (41) after assembling; Conducting strip group (41) correspondence on two conducting strips row (43) is arranged, and the space (413) that extension spring (42) two ends are each passed through two upper corresponding pair of conductive sheet groups (41) arranged of conducting strip row (43) is connected with conducting strip group (41).
2. bridge-shaped contact according to claim 1, it is characterized in that: between two conducting strips (411) of described conducting strip group (41), be provided with pad (412), separated by pad (412) and form space (413).
3. bridge-shaped contact according to claim 1, it is characterized in that: the side between two conducting strips (411) of described conducting strip group (41) is provided with conducting strip boss, two conducting strips (411) form space (413) by conducting strip boss.
4. bridge-shaped contact according to claim 2, it is characterized in that: on conducting strip (411), be provided with conducting strip installing hole (4113), pad (412) is provided with said spacer mounting bores (4121), and conducting strip installing hole (4113) and said spacer mounting bores (4121) are oppositely arranged.
5. bridge-shaped contact according to claim 1, it is characterized in that: described conducting strip group (41) also comprises extension spring installation shaft (414), the sidewall of one end that conducting strip (411) is connected with conducting copper (3) is provided with the buckle (4111) and groove (4112) that coordinate with draw-in groove (311) and the side (312) of conducting copper (3) respectively; The opposite side of conducting strip (411) is provided with the extension spring groove (4114) installing extension spring installation shaft (414).
6. bridge-shaped contact according to claim 1, it is characterized in that: the conducting copper (3) be connected with bridge-shaped contact comprises two pieces of copper bars independently be arranged in parallel (31), be provided with cushion block (32) between two pieces of copper bars (31), two pieces of copper bars (31) form gap (34) by cushion block (32).
7. bridge-shaped contact according to claim 6, is characterized in that: on cushion block (32), be provided with second air-vent (321) of being convenient to dispel the heat.
8. bridge-shaped contact according to claim 6, it is characterized in that: on the side in two pieces of copper bar (31) outsides of conducting copper (3), be respectively equipped with the support (33) installing conducting copper, support (33) stretches out from the side in copper bar (31) outside.
9., according to the arbitrary described bridge-shaped contact of claim 1-8, it is characterized in that: on the tactile bridge bracket (44) of bridge-shaped contact (4), be provided with the first air-vent (441).
CN201420609617.9U 2014-10-21 2014-10-21 The bridge-shaped contact of universal circuit breaker drawer seat Active CN204257564U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420609617.9U CN204257564U (en) 2014-10-21 2014-10-21 The bridge-shaped contact of universal circuit breaker drawer seat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420609617.9U CN204257564U (en) 2014-10-21 2014-10-21 The bridge-shaped contact of universal circuit breaker drawer seat

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110970238A (en) * 2019-12-19 2020-04-07 苏州飞腾电器有限公司 Dual-power automatic transfer switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110970238A (en) * 2019-12-19 2020-04-07 苏州飞腾电器有限公司 Dual-power automatic transfer switch

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract

Assignee: Wenzhou Zhengtai Electrical Technology Co., Ltd

Assignor: Zhejiang Chint Electrics Co.,Ltd.

Contract record no.: X2020330000078

Denomination of utility model: Bridge contact of drawer seat of universal circuit breaker

Granted publication date: 20150408

License type: Common License

Record date: 20201021