CN201966157U

CN201966157U - Connecting terminal of circuit breaker

Info

Publication number: CN201966157U
Application number: CN2011200953517U
Authority: CN
Inventors: 钱锦丰; 朱永清; 俞晓峰
Original assignee: Changshu Switchgear Manufacturing Co Ltd
Current assignee: Changshu Switchgear Manufacturing Co Ltd
Priority date: 2011-04-02
Filing date: 2011-04-02
Publication date: 2011-09-07
Anticipated expiration: 2021-04-02

Abstract

The utility model discloses a connecting terminal of a circuit breaker, which belongs to the technical field of low-voltage appliance manufacture. The connecting terminal comprises an insulation shell, a contact blade and a spring. The contact blade is mounted in a cavity of the insulation shell; the spring is mounted in the cavity of the insulation shell, and is fixed with a fixed end inside the cavity of the insulation shell; the connecting lead of a circuit is clamped on the contact blade and is electrically connected with an auxiliary circuit of the circuit breaker by the cooperation of the spring and the contact blade; and the insulation shell is at least provided with a first opening used for the insertion of the lead of a power supply circuit, and at least one second opening used for the insertion of an auxiliary tool cooperated with the spring. The connecting terminal of the circuit breaker is characterized in that a first guide blocking part is arranged in the second opening of the insulation shell. The connecting terminal of the circuit breaker has the advantages that the damaging of the spring due to the insertion of the auxiliary tool when being used by a user is prevented, therefore, the service life of the connecting terminal is prolonged and the use cost of the user is reduced.

Description

The binding post of circuit breaker

Technical field

The utility model relates to a kind of binding post of circuit breaker, and especially a kind of binding post of pull-out type frame circuit breaker belongs to low-voltage electrical apparatus manufacturing technology field.

Background technology

Circuit breaker has main circuit and auxiliary circuit, and main circuit is to connect the circuit of finishing each major function of circuit breaker, and auxiliary circuit is a circuit of finishing the every miscellaneous function of circuit breaker.Because miscellaneous function is to be set by user oneself according to user's different needs, the user directly uses the auxiliary circuit wiring for convenience, binding post 1(often is installed as shown in Figure 1 on the top of circuit breaker).The structure of prior art middle connecting terminal is disclosed by Fig. 2, this binding post 1 comprises insulation shell 11, contact chip 12 and spring 13, described contact chip 12 is installed in the die cavity of insulation shell 11, described spring 13 is installed in equally in the die cavity of insulation shell 11 and with the stiff end 113 that is located in insulation shell 11 die cavities and fixes, circuit connection lead 2 is clamped on the contact chip 12 by spring 13 with cooperating of contact chip 12 and realizes and being electrically connected of circuit breaker auxiliary circuit, at least having one on the described insulation shell 11 is used for using first opening 111 that auxiliary circuit wiring lead 2 inserts and at least one to be used for for the aid 3(such as the Flathead screwdriver of cooperate with spring 13 for the user) second opening 112 that inserts, insert binding post with conductor or shift out from binding post with permission.Yet the binding post of said structure can damage spring 13 because aid 3 can not accurately insert, therefore the useful life of having reduced binding post when the user uses.

For this reason, the applicant has carried out useful exploration, finds a way to resolve the problem, and technical scheme described below produces under this background.

Summary of the invention

The purpose of this utility model is to provide a kind of binding post of circuit breaker of architecture advances, damages spring because of the insertion of aid when it can prevent effectively that the user from using, and improves the useful life of binding post.

Task of the present utility model is finished like this, a kind of binding post of circuit breaker, this binding post comprises insulation shell, contact chip and spring, described contact chip is installed in the die cavity of insulation shell, described spring is installed in equally in the die cavity of insulation shell and with the stiff end that is located in the insulation shell die cavity and fixes, the circuit connection wire clamp is held on the contact chip by spring with cooperating of contact chip and realizes and being electrically connected of circuit breaker auxiliary circuit, at least be provided with first opening that the road wiring lead that is used to power inserts and at least one on the described insulation shell and be used for second opening that inserts for the aid of cooperate, it is characterized in that: in second opening of described insulation shell, be provided with the stop part that leads with spring.

In a specific embodiment of the present utility model, described guiding stop part is positioned at the side that second opening is close to first opening.

In another specific embodiment of the present utility model, the cross sectional shape of described guiding stop part is a parallelogram.

In another specific embodiment of the present utility model, an end end of described spring is provided with peristome, constitutes blade ends in the front side of described peristome.

The utility model is because after adopting technique scheme, the beneficial effect that has: prevent to damage spring because of the insertion of aid when the user from using, thereby prolonged the useful life of binding post, reduced user's use cost.

Description of drawings

Fig. 1 is installed on the schematic diagram on circuit breaker top for the breaker connection terminal.

Fig. 2 is the structural representation of prior art middle connecting terminal.

Fig. 3 is an example structure schematic diagram of the utility model binding post.

Fig. 4 is the structural representation at another visual angle of Fig. 3.

Among the figure: 1. binding post, 11. insulation shells, 111. first openings, 112. second openings, 1121. guiding stop parts, 113. stiff ends, 114. inwalls, 12. contact chips, 13. springs, 131. peristomes, 132. blade ends; 2. circuit connection lead; 3. aid.

Embodiment

In order to make the public can fully understand technical spirit of the present utility model and beneficial effect; the applicant will describe in detail embodiment of the present utility model below in conjunction with the accompanying drawings; but the applicant is not restriction to technical scheme to the description of embodiment, anyly makes form but not the variation of essence all should be considered as protection range of the present utility model according to the utility model design.

See also Fig. 1, Fig. 3 and Fig. 4, a kind of binding post of circuit breaker, this binding post 1 comprises insulation shell 11, contact chip 12 and spring 13, described contact chip 12 is installed in the die cavity inside of insulation shell 11, described spring 13 is installed on the die cavity inside of insulation shell 11 equally, specifically: described spring 13 is installed on the interior stiff end 113 of insulation shell 11 die cavities and with described stiff end 113 and is surrounded, end end at spring 13 forms the peristome 131 with open pore, constitutes blade ends 132 in the front side of described peristome 131.Described contact chip 12 with can and be fixed on the contact chip 12 2 clampings of circuit connection lead after spring 13 cooperates.At least be provided with first opening 111 that the road wiring lead 2 that is used to power inserts and at least one on the described insulation shell 11 and be used for second opening 112 that inserts for aid 3, be characterized in: be provided with a guiding stop part 1121 in second opening 112 of described insulation shell 11.The cross sectional shape of this guiding stop part 1121 is not subjected to any restriction, in the present embodiment, is preferably parallelogram.Described guiding stop part 1121 be positioned at second opening 112 be close to first opening 111 a side and away from inwall 114 1 sides of insulation shell 11.

Please continue to consult Fig. 1, Fig. 3 and Fig. 4, described breaker connection terminal 1 is installed in the top of circuit breaker usually, its underpart is connected with the circuit breaker auxiliary circuit, top is provided with the first above-mentioned opening 111 and second opening 112, in the time circuit connection lead 2 need being connected in the binding post 1 of circuit breaker, earlier aid 3 is inserted in second opening 112, when aid 3 further inserts second opening 112, it is subjected to the effect of the inwall 114 of insulation shell 11, the middle part of spring 13 to insulation shell 11 die cavities promoted, thereby make the peristome 131 of spring 13 1 end ends below first opening 111, expose open pore, at this moment, behind circuit connection lead 2 insertions first opening 111, pass above-mentioned open pore again, then aid 3 is extracted, at this moment, because the restoring force effect of spring 13, the open pore of peristome 131 on the spring 13 below first opening 111 dwindles, circuit connection lead 2 fixes in the open pore of spring 13 the most at last, simultaneously, because a side of peristome 131 is a contact chip 12, thereby guaranteed electrically contacting of circuit connection lead 2 and contact chip 12, finally made circuit connection lead 2 be connected with the circuit breaker auxiliary circuit.

The utility model is owing to added guiding stop part 1121, and it is positioned at second opening 112, and near first opening 111, and described guiding stop part 1121 parallelograms.After adopting above-mentioned the setting, in the time of in aid 3 inserts second opening 112, the led influence of stop part 1121 of its aid 3 heads is directed to a side of spring 13 close inwalls 114, thereby can not cause aid 3 conflict springs 13 tops, and damage spring 13.

In sum, the technical scheme that the utility model provides has overcome the shortcoming in the prior art, has reached goal of the invention, has embodied the described technique effect of applicant.

Claims

1. the binding post of a circuit breaker, this binding post (1) comprises insulation shell (11), contact chip (12) and spring (13), described contact chip (12) is installed in the die cavity of insulation shell (11), described spring (13) is installed in equally in the die cavity of insulation shell (11) and with the stiff end (113) that is located in insulation shell (11) die cavity and fixes, with cooperating of contact chip (12) circuit connection lead (2) is clamped in by spring (13) that contact chip (12) is gone up and being electrically connected of realization and circuit breaker auxiliary circuit, at least be provided with first opening (111) that the road wiring lead (2) that is used to power inserts and at least one on the described insulation shell (11) and be used for second opening (112), it is characterized in that: in second opening (112) of described insulation shell (11), be provided with the stop part (1121) that leads for aid (3) insertion of cooperate with spring (13).

2. the binding post of circuit breaker according to claim 1 is characterized in that described guiding stop part (1121) is positioned at the side that second opening (112) is close to first opening (111).

3. the binding post of circuit breaker according to claim 1, the cross sectional shape that it is characterized in that described guiding stop part (1121) is a parallelogram.

4. the binding post of circuit breaker according to claim 1 is characterized in that an end end of described spring (13) is provided with peristome (131), constitutes blade ends (132) in the front side of described peristome (131).