CN102169782B - Current regulation device of release of circuit breaker - Google Patents
Current regulation device of release of circuit breaker Download PDFInfo
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- CN102169782B CN102169782B CN 201110084728 CN201110084728A CN102169782B CN 102169782 B CN102169782 B CN 102169782B CN 201110084728 CN201110084728 CN 201110084728 CN 201110084728 A CN201110084728 A CN 201110084728A CN 102169782 B CN102169782 B CN 102169782B
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- support
- adjusting knob
- circuit breaker
- current adjusting
- knob
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Abstract
The invention discloses a current regulation device of a release of a circuit breaker, belonging to the technical field of circuit breakers. The current regulation device of the release of the circuit breaker comprises a current regulation knob and a knob positioning device, wherein the upper end of the current regulation knob is narrowed to form a concave channel; an action end which acts on therelease of the circuit breaker is formed at the lower end of the current regulation knob; the knob positioning device comprises a bracket and a base, wherein the bracket is fixed on the base and a support groove which is unenclosed U-shaped is formed on the bracket; and the current regulation knob is matched with the support groove through the concave channel so as to be arranged on the bracket. The current regulation device of the release of the circuit breaker is characterized in that a bearing cavity is arranged at a part on the base corresponding to the action end and the action end extends into the bearing cavity so as to be matched with the inner side of the bearing cavity. The current regulation device of the release of the circuit breaker has the advantages of being concise in structure and convenient for machining, installation and use.
Description
Technical field
The invention belongs to breaker technical field, be specifically related to a kind of release regulating current device of circuit breaker.
Background technology
The for example pyromagnetic adjustable breaker of plastic casing of circuit breaker needs the current value of overload protection and short-circuit protection action is implemented to adjust adjusting according to instructions for use, is accomplished by adjusting knob and adjust to regulate, and adjusting knob is fixed through the base of support and circuit breaker.Technology contents about current adjusting knob can obtain comparatively detailed understanding from disclosed specifications such as invention patent mandate notification number CN100377270C and utility model patent Granted publication CN201084663Y.
The release regulating current device of the circuit breaker in prior art current adjusting knob 2 and the knob positioner 1 of comprising as shown in Figure 3.Current adjusting knob 2 is a cylindrical configuration, and (under the user mode towards a last end) narrow contracting has a recessed road 21 in the upper end of this current adjusting knob 2, and current adjusting knob 2 lower ends constitute the effect end 22 that is used for the trip gear effect of circuit breaker; Knob positioner 1 comprises a support 11; Constitute the support slot 111 that does not seal and take the shape of the letter U trend on this support 11; The said recessed road 21 that is formed in current adjusting knob 2 upper ends is suitable with support slot 111, rotates around the axle center of himself during current adjusting knob 2 work.Yet; Because current adjusting knob 2 is not to be supported by support 11 full circle; Therefore can be when current adjusting knob receives reaction force to the opening part skew of aforesaid support slot 111, the situation that the pivot of current adjusting knob 2 is departed from, thus influence accuracy to the setting current adjusting.Simultaneously, because the assembling of current adjusting knob 2 need realize that therefore, the thickness of support 11 often is controlled in the small range through the strain of the support slot on the support 11 111, that is, support 11 is thinner.Also owing to the recessed road 21 that is positioned at current adjusting knob 2 tops can only reach unanimity the width in recessed road 21 and the thickness of support 11 because of the thickness restriction that receives support 11; That is to say that the thickness of the width in recessed road 21 and support 11 shows as the thickness relation of following in sb's footsteps.So; Because current adjusting knob 2 is that an end positioning instant is positioned on the support 11 with suspension type; While support slot 111 and the exposure level in recessed road 21 limited (semi circular surface contacts); Therefore in current adjusting knob 2 practical operations, the axis of rotation deflection very easily occurs after stressed, and the axis of rotation deflection can the serious accuracy that reduces Current Regulation.
China utility model patent Granted publication CN201252070Y has recommended a kind of thermo magnetic trip release device adjusting knob locating piece; This thermo magnetic trip release device adjusting knob locating piece is the application's that the applicant mentions subject name---the release regulating current device of circuit breaker in the above; Its structure is by Fig. 4 and shown in Figure 5; On the adjusting knob locating piece of setting up 102, constitute top arc groove 104 and bottom arc groove 106; And the both sides at adjusting knob locating piece 102 respectively extend card base 108; Arc groove 204 by top arc groove 104 and support 202 constitutes a full circle (Fig. 4 shows) so that support current adjusting knob, and adjusting knob locating piece 102 is connected with tenon fourth of the twelve Earthly Branches effect with support 202 through card base 108.This patent scheme is that support slot has been designed to that (one is the top arc groove on the adjusting knob locating piece 102 by two semicircle chambeies with the top location notch; Two is the arc groove 204 on the support 202) completely circular structure formed; Simultaneously having increased a radian below promptly corresponding to top arc groove 104 is bottom arc groove 106 in the lower end of adjusting knob locating piece 102 less than 180 ° setting circle arc fluting; The locating effect of current adjusting knob is improved; But still there is following shortcoming: one of which; Though the top arc groove 104 of adjusting knob locating piece 102 and the arc groove 204 on the support 202 have constituted the cavity of a full circle shape; But because the foozle of adjusting knob locating piece 102 self and objectively be difficult to elimination, thereby be prone to cause two semicircle decentraction, be unfavorable for ensureing the reliability of the location of current adjusting knob with rigging error that support 202 assemble mutually; Its two, when the current adjusting knob curved surface received reaction force, power passed to adjusting knob locating piece 102 through current adjusting knob, existed the card base 108 cause adjusting knob locating piece 102 to break away from from support 202, to the spacing inefficacy of current adjusting knob; They are three years old; Because the radian of bottom arc groove 106 is less than 180 °, thereby can't embody the effective tube bank effect to current adjusting knob, deflection that can only block current adjusting knob part direction; And when spiral camber received reaction force, the situation of axis of rotation deflection still can appear; Its four, increase adjusting knob locating piece 102 and amount of parts increased to making and install and even using increase cost.
Therefore, how under the prerequisite that does not increase structural member, can realize finding between the good location problem of rational balance point to suffer from industry for a long time, and expectation solve always to current adjusting knob.For this reason, the applicant has done repeatedly and good try, and proves practicable through experiment, below the technical scheme that will introduce under this background, produce.
Summary of the invention
Task of the present invention is to provide a kind of reliability that helps to guarantee the current adjusting knob location, help avoiding breaking away from support slot on the support, being of value to the axis of rotation deflection that prevents current adjusting knob and need not extra increase parts and use the release regulating current device that embodies the terse circuit breaker of structure because of reaction force causes current adjusting knob.
Task of the present invention is accomplished like this; A kind of release regulating current device of circuit breaker; Comprise current adjusting knob and knob positioner; Narrow the contracting in the upper end of described current adjusting knob has a recessed road, and the lower end of current adjusting knob constitutes the effect end that is used for the trip gear effect of circuit breaker; Described knob positioner comprises a support and a base; Support is fixed on the base; Constitute the support slot that does not seal and take the shape of the letter U trend on this support, said current adjusting knob matches with support slot through said recessed road and is arranged on the support, is characterised in that: be provided with supporting cavity on the described base and at the position corresponding to said effect end; Described effect end is insinuated in the support chamber, matches with the medial surface of support chamber.
In a concrete embodiment of the present invention, described supporting cavity is whole circular cavity or the radian chamber greater than 180 °.
In another concrete embodiment of the present invention, on the cell wall of described support slot and in the position to correspond to each other, respectively be extended with a defining flange, described defining flange is semicircular spacing bead.
In another concrete embodiment of the present invention, offer through hole on the described support, offer on the described base that quantity equates with through hole and position and the corresponding fixing hole of through hole, support and fixing hole are fixed through through hole by securing member.
Technical scheme provided by the invention is owing to offered supporting cavity on the base of circuit breaker and in the position corresponding to the effect end of current adjusting knob; The effect end matches with supporting cavity; Make current adjusting knob with support slot and supporting cavity as axis of rotation; Thereby guaranteed the reliability of current adjusting knob location, can be because of reaction force deflection do not occur and even deviate from support slot, owing to need not to resemble the prior art action stability that exchanges current adjusting knob with the mode that increases parts for; Thereby it is terse to have structure, convenient processing and installation and use.
Description of drawings
Fig. 1 is a concrete example structure figure of the present invention.
Fig. 2 is the partial enlarged drawing of support of the present invention.
Fig. 3 is the current adjusting knob of the circuit breaker in the prior art and the matching chart of support.
Fig. 4 is current adjusting knob and the matching chart of support of the circuit breaker of the another kind of form in the prior art.
Fig. 5 is the structure chart of locating piece shown in Figure 4.
Embodiment
For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present invention and beneficial effect more; The applicant general elaborates with the mode of embodiment below; But the description to embodiment all is not the restriction to the present invention program, any according to the present invention design done only for pro forma but not substantial equivalent transformation all should be regarded as technical scheme category of the present invention.
Embodiment 1:
Ask for an interview Fig. 1 and Fig. 2; In Fig. 1, provided the current adjusting knob 2 and knob positioner 1 of the release regulating current device that constitutes circuit breaker, current adjusting knob 2 is positioned on the knob positioner 1, and the upper end of current adjusting knob 2 constitutes a narrow recessed road 21 that contracts; And the lower end of current adjusting knob 2 constitutes the effect end 22 that is used for the trip gear effect of circuit breaker; The preferred shape of this effect end 22 is used for to the trip gear effect of circuit breaker inside, more particularly twist; Be used for dropout spring adjusting rod effect to the trip gear of circuit breaker; The knob positioner 1 that provides comprises a support 11 and a base 12, on this support 11, offers the support slot 111 that does not seal and take the shape of the letter U, and the recessed road 21 of the upper end of aforesaid current adjusting knob 2 matches with support slot 111; Support 11 carries current adjusting knob 2 and is installed on the base 12, and this base 12 is essentially the circuit breaker base.
Technical essential as technical scheme provided by the invention: on aforesaid base 12 and in position, be designed with (offering) supporting cavity 121 corresponding to the effect end 22 of current adjusting knob 2; Supporting cavity 121 both can be the circular cavity of full circle shape; Also can be radian greater than 180 ° chamber; Present embodiment is selected the former, when support 11 take (together with) after current adjusting knob 2 was installed on the base 12, the effect end 22 of current adjusting knob 2 lower ends matched with supporting cavity 121.So: jointly as an axle center of revolving of current adjusting knob 2 rotations, make current adjusting knob 2 realize two end in contact location by support slot 111 and supporting cavity 121, need not resemble the extra increase parts of prior art current adjusting knob 2 is located.
Emphasis is seen Fig. 2 and is continued to combine Fig. 1; On the cell wall that faces each other of aforesaid support slot 111, be extended with the defining flange 1111 that corresponds to each other; Distance between a pair of defining flange 1111 is less than the diameter of cylindrical body 23; When being installed on current adjusting knob 2 in the support slot 111, contacting with recessed road 21 by a pair of defining flange 1111 and limit current adjusting knob 2 deflection in a circumferential direction.Emphasis is seen Fig. 1; On support 11, offer one group of (being illustrated as a pair of) through hole 112, and on base 12 and at the position corresponding to through hole 112, offer the fixing hole 122 that quantity equates with through hole 112, fixing hole 122 is a screwed hole; Fixing with securing member such as screw via through holes 112 with fixing hole 122; Thereby support 11 is fixed on the base 12, and simultaneously, current adjusting knob 2 is bearing on support slot 111 and the supporting cavity 121 rotationally.Because the recessed road 21 of the upper end of current adjusting knob 2 is spacing by a pair of defining flange 1111 on the support slot 111; And the effect end 22 of lower end probes into supporting cavity 121; Therefore current adjusting knob 2 can deflection not occur under the effect of reaction force, is not therefore adopting the stability that has ensured current adjusting knob 2 under the prerequisite of any fastener.
Embodiment 2:
Figure slightly, making supporting cavity 121 into radian is 270 ° chamber, all the other are all with the description to embodiment 1.
Claims (3)
1. the release regulating current device of
a kind of circuit breaker; Comprise current adjusting knob (2) and knob positioner (1); Narrow the contracting in the upper end of described current adjusting knob (2) has a recessed road (21), and the lower end of current adjusting knob (2) constitutes the effect end (22) that is used for the trip gear effect of circuit breaker; Described knob positioner (1) comprises a support (11) and a base (12); Support (11) is fixed on the base (12); Constitute the support slot (111) that does not seal and take the shape of the letter U trend on this support (11); Said current adjusting knob (2) matches with support slot (111) through said recessed road (21) and is arranged on the support (11), it is characterized in that: described base (12) is gone up and is provided with supporting cavity (121) at the position corresponding to said effect end (22), and described effect end (22) is insinuated in the supporting cavity (121); Match with the medial surface of supporting cavity (121), described supporting cavity (121) is whole circular cavity or the radian chamber greater than 180 °.
2. the release regulating current device of
circuit breaker according to claim 1; It is characterized in that respectively being extended with a defining flange (1111) on the cell wall of described support slot (111) and in the position to correspond to each other, described defining flange (1111) is semicircular spacing bead.
3.
The release regulating current device of circuit breaker according to claim 1; It is characterized in that offering on the described support (11) through hole (112); Offer quantity on the described base (12) and equate with through hole (112) and position and the corresponding fixing hole of through hole (112) (122), support (11) and fixing hole (122) is fixing by securing member through through hole (112)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110084728 CN102169782B (en) | 2011-04-02 | 2011-04-02 | Current regulation device of release of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110084728 CN102169782B (en) | 2011-04-02 | 2011-04-02 | Current regulation device of release of circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102169782A CN102169782A (en) | 2011-08-31 |
| CN102169782B true CN102169782B (en) | 2012-12-19 |
Family
ID=44490904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110084728 Active CN102169782B (en) | 2011-04-02 | 2011-04-02 | Current regulation device of release of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102169782B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710992A (en) * | 2016-12-02 | 2017-05-24 | 无锡职业技术学院 | Novel air switch |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0338250A2 (en) * | 1988-04-19 | 1989-10-25 | ABL SURSUM BAYERISCHE ELEKTROZUBEHÖR GmbH & Co. KG | Multiphase circuit breaker |
| CN1790583A (en) * | 2005-12-07 | 2006-06-21 | 上海电器科学研究所（集团）有限公司 | Thermomagnetic type release and its current adjusting knob |
| CN201084663Y (en) * | 2007-08-10 | 2008-07-09 | 上海电器股份有限公司人民电器厂 | A thermo-electro-magnetic over-current adjustable-type release |
| CN201252070Y (en) * | 2008-07-30 | 2009-06-03 | 上海电器科学研究所（集团）有限公司 | Locating block for adjusting knob of thermomagnetic electrical apparatus release |
| CN201966158U (en) * | 2011-04-02 | 2011-09-07 | 常熟开关制造有限公司(原常熟开关厂） | Current regulating device for release of circuit breaker |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7130173B2 (en) * | 2003-07-08 | 2006-10-31 | Square D Company | Direct force armature for a trip assembly |
-
2011
- 2011-04-02 CN CN 201110084728 patent/CN102169782B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0338250A2 (en) * | 1988-04-19 | 1989-10-25 | ABL SURSUM BAYERISCHE ELEKTROZUBEHÖR GmbH & Co. KG | Multiphase circuit breaker |
| CN1790583A (en) * | 2005-12-07 | 2006-06-21 | 上海电器科学研究所（集团）有限公司 | Thermomagnetic type release and its current adjusting knob |
| CN201084663Y (en) * | 2007-08-10 | 2008-07-09 | 上海电器股份有限公司人民电器厂 | A thermo-electro-magnetic over-current adjustable-type release |
| CN201252070Y (en) * | 2008-07-30 | 2009-06-03 | 上海电器科学研究所（集团）有限公司 | Locating block for adjusting knob of thermomagnetic electrical apparatus release |
| CN201966158U (en) * | 2011-04-02 | 2011-09-07 | 常熟开关制造有限公司(原常熟开关厂） | Current regulating device for release of circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102169782A (en) | 2011-08-31 |
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