CN216957917U

CN216957917U - Release fixing device and circuit breaker

Info

Publication number: CN216957917U
Application number: CN202220383120.4U
Authority: CN
Inventors: 张宇; 顾婷婷; 李鑫
Original assignee: Beijing Bevone Electric Co ltd
Current assignee: Beijing Bevone Electric Co ltd
Priority date: 2022-02-25
Filing date: 2022-02-25
Publication date: 2022-07-12
Anticipated expiration: 2032-02-25

Abstract

The utility model discloses a tripper fixing device, which comprises a tripper base and a cover, wherein a tripper body is arranged on the tripper base. According to the utility model, under the condition of not increasing the space size, the support is additionally arranged to be matched with the base of the tripper, so that the fixing reliability of the tripper is ensured, the rejection rate of cover parts is reduced, the support also has a wiring function, a wiring groove is not required to be additionally arranged independently, and the number of parts is reduced.

Description

Release fixing device and circuit breaker

Technical Field

The utility model belongs to the technical field of molded case circuit breakers, and particularly relates to a release fixing device for a circuit breaker.

Background

The existing molded case circuit breaker base is made of thermosetting materials, and is usually connected by screws when other structures are installed or fixed on the base. The novel nut inserting device is divided into two types, the nut inserting device is preset, and the combined screw is used for fixing, so that the mode is relatively reliable, and the installation effect is not influenced by repeated dismounting. The disadvantage is that the manufacturing costs are increased, while at the same time there are space restrictions, which impose certain requirements on the thickness of the housing, where the nut cannot be arranged. The second mode is to reserve the screw hole on the base, uses self-tapping screw to fix required spare part, and the advantage is simple structure, and manufacturing and low in production cost. The defects are that the thermosetting material is easy to lose, the device can not be repeatedly installed during inspection, the screw holes are easy to be damaged during multiple assembling, the installation is invalid, and the use of the product is influenced. The electronic product mutual inductor and the tripper part have a large number of output or control wire harnesses, and are usually lack of standardized wiring during layout, so that the wire harnesses connected with the controller are disordered, and the wires are easily damaged during installation, so that the function damage or other problems are caused.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model aims to provide a fixing device, which improves the fixing structure of a release, simultaneously increases a wiring device, simplifies the whole structure of the release and the number of parts, and improves the installation and use reliability. The structure of the thermosetting part is simplified, and the use reliability is improved.

In order to achieve the purpose, the utility model provides a release fixing device which comprises a release base and a cover, wherein a release body is arranged on the release base.

The front part of the tripper base is provided with a mounting hole, the tripper base passes through a screw and is installed on the support, the front part of the tripper base is also provided with a limiting surface matched with the support, the rear part of the tripper base is provided with a clamping hook, and the limiting clamping hook is buckled with the clamping groove on the cover.

The support comprises a support front part and a support rear part, the support front part is of a flat plate structure, the support rear part is of a groove-shaped structure, the support front part is provided with at least two mounting holes, the support rear part is provided with a fixing hole, and the support passes through the mounting holes and the fixing hole through screws and is mounted on the cover.

The back of the mounting hole is correspondingly provided with a groove, and the groove is matched with the boss arranged on the cover.

The top of the front part of the support is provided with a first groove, the side edge of the front part of the support is provided with a second groove, and the first groove and the second groove form a first channel.

The end part of the front part of the bracket is provided with an elastic buckle which is used for being matched with the limit surface of the base of the release.

The bracket rear portion includes a side wall and a bottom groove, the bracket rear portion and the side wall of the cover form a second channel.

The lateral wall is provided with at least two limiting bosses along the length direction.

The rear part of the tripper base and the other side edge of the cover form a third channel.

Another objective of the present invention is to provide a circuit breaker, which includes the above trip fixing device.

Compared with the prior art, the release fixing device has the following technical effects:

1. the support is matched with the base of the tripper to ensure the fixing reliability of the tripper, and the reliability can be ensured repeatedly;

2. the support can fix the release and has a wiring function, a wiring groove does not need to be added independently, and the number of parts is reduced;

3. the support is an independent part, can select multiple forming processes, is convenient for designing complex structural characteristics, and transfers partial original functional characteristics of the cover. The structure and shape requirements of the cover are simplified, a simpler process mode is conveniently adopted, and the reduction of the die and the manufacturing cost is facilitated;

4. the support adopts the one-time mounting with the lid, and all the other parts all are connected with the support, have reduced the disability rate of lid part, because the lid adopts the thermosetting material mostly, but recycle, this kind of design has reduced the wasting of resources, accords with current environmental protection trend.

Drawings

Fig. 1 is a perspective view illustrating the installation of a trip unit according to an embodiment of the present invention;

fig. 2 is a schematic top view of the trip unit installation in accordance with an embodiment of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a schematic view of a stent structure in an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a base of a trip unit according to an embodiment of the present invention;

fig. 7 is a schematic view of another orientation of the trip unit base in accordance with an embodiment of the present invention;

fig. 8 is a schematic diagram of a wiring structure of a release according to an embodiment of the utility model;

sequence number:

1-cover, 2-bracket, 3-release body, 4-release base, 5-first channel, 6-second channel, 7-third channel, 11-clamping groove, 21-bracket front, 22-bracket back, 23-elastic buckle, 24-mounting hole, 25-fixing hole, 26-limiting boss, 27-groove, 28-mounting hole, 31-side wall, 32-bottom groove, 41-limiting surface, 42-mounting hole, 43-clamping hook, 51-first groove, 52-second groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

As shown in fig. 1-4, the trip unit fixing apparatus in one embodiment of the present invention includes a bracket 2, a cover 1 and a trip unit base 4. The tripper body is arranged on the tripper base 4, and the bracket 2 is arranged on the upper part of the cover 1 and fixed with the cover 1 by screws. The tripper base 4 is placed on the cover 1 and the support 2, the front part of the tripper base 4 is fixed with the support 2 through a screw and an elastic buckle 23, the bottom of the rear end of the tripper base 4 is buckled with the cover 1 through a clamping hook 43, and the rear end and the left side edge of the tripper base 4 are limited by the cover 1. According to the utility model, the support 2 for fixing the release is an independent part, the support 2 is in installation fit with the cover 1, other parts are directly or indirectly fixed through the support 2, the support 2 and the release base 4 are fixed by adopting a buckle and a screw, and the release base 4 and the cover 1 are fixed by adopting a buckle clamping groove, so that the rejection rate of the cover parts is reduced.

As shown in fig. 5-6, the bracket 2 includes a bracket front portion 21 and a bracket rear portion 22, the bracket front portion 21 is a flat plate structure, four corners of the bracket front portion 21 are respectively provided with a mounting hole 22, a groove 27 is provided at a corresponding position of the back of the mounting hole 22, and the groove 27 at the bottom of the bracket 2 is matched with the boss of the cover 1 to play roles of supporting and limiting. The tip of the anterior 21 of support 2 is provided with elasticity buckle 23 for cooperate the installation with the spacing face of release base 4 front end, elasticity buckle 23 top adopts the notch cuttype structure, makes things convenient for the instrument operation, can install and dismantle the operation. The bracket rear portion 22 is of a groove-shaped structure, the bracket rear portion 22 comprises a side wall 31 and a bottom groove 32, the tail end of the bottom groove 32 is provided with a fixing hole 25, the bracket 2 is fixed on the cover 1 by using a self-tapping screw, and three limiting bosses 26 are arranged on the side wall 31 along the length direction of the side wall 31. The side wall 31 of the present invention may also be provided with 2 limiting bosses 26, or four or more limiting bosses 26. The side of the groove-shaped structure is provided with a mounting hole 24 for fixedly mounting with the tripper base 4.

The top of the bracket front 21 is provided with a first groove 51, the side of the bracket front 21 is provided with a second groove 52, and the first groove 51 and the second groove 52 form a first channel 5. The semi-closed structure formed by the upper side wall 31, the limit boss 26, the bottom groove 32 and one side edge of the cover 1 of the bracket 2 is a second channel 6 which can accommodate a certain number of wire harnesses with certain cross sections. The stop boss 26 structure may act as a stop so that the wiring harness is reliably mounted in the channel structure. A gap exists between the limiting boss 26 and one side edge of the cover 1, so that the wiring harness is allowed to be put in and taken out, and the wiring harness is prevented from falling out automatically.

As shown in fig. 7 to 8, the front portion of the trip unit base 4 is provided with a limiting surface 41 and a mounting hole 42 which are engaged with the elastic catch 23. A hook 43 is arranged at the rear part of the release base 4, and the hook 43 is buckled with the clamping groove 11 on the setting cover 1. The overlapping part of the base 4 of the release and the bracket 2 forms a closed area after installation, and the limit is added to the internal wire harness. The rear part of the release base 4 and the other side edge of the cover 1 form a third channel 7. The first passage 5, the second passage 6 and the third passage 7 in the present invention constitute a wire harness arranging space.

The mounting process of the bracket 2 of the utility model is as follows: place support 2 on lid 1 earlier, support 2 bottom recess 27 and lid 1 boss cooperation carry on spacingly and fix a position, and the cell type structure of support 2 and lid 1 side cooperation use the screw to fix support 2 and lid 1 after the installation targets in place, accomplish support 2 installation operation.

The wiring harness arranging process comprises the following steps: the wiring harness is arranged along the groove area of the first channel 5, the wiring harness is arranged in the second channel 6 formed by the groove structure through the gap between the limiting boss of the groove structure and the cover 1 in the second channel 6 area, the arrangement in the second channel 6 is completed, the wiring harness is arranged in the third channel 7 formed by the release base 4 and the cover 1 at the limiting boss position of the end part of the groove structure, and the wiring harness installation is completed.

The installation process of the release base 4 is as follows: the release base 4 is placed on the cover 1, the rear end and the side edge of the release base 4 are contacted with the cover 1, and the trip hook 43 of the release base 4 is buckled with the clamping groove 11 on the cover 1. The elastic buckle 23 on the support 2 is shifted, the limiting surface of the release base 4 is pushed into the elastic buckle 23, and the elastic buckle 23 is released to the limiting surface 41 of the release base 4. The tripper base 4 is fixed by using the position of the mounting hole 42 of the screw on the tripper base 4, so that the mounting operation of the tripper base 4 is completed, according to the opposite step, the screw on the tripper base 4 is removed, the limiting surface of the elastic buckle 23 on the bracket 2 is pushed to release the limiting surface 41 on the tripper base 4, and then the dismounting of the tripper base 4 is completed.

The principle and the implementation mode of the utility model are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for those skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed, and in summary, the content of the present specification should not be construed as limiting the present invention.

Claims

1. The utility model provides a tripper fixing device, includes tripper base and lid, and the tripper body is installed on the tripper base, its characterized in that still includes a support, the support mounting cover, the front portion of tripper base with the support is fixed, the rear end of tripper base with the lid passes through the buckle to be fixed.

2. The trip unit fixing apparatus according to claim 1, wherein the front portion of the trip unit base is provided with a mounting hole through which the trip unit base is mounted to the bracket by a screw, the front portion of the trip unit base is further provided with a stopper surface engaged with the bracket, and the rear portion of the trip unit base is provided with a hook engaged with the engaging groove of the cover by the hook.

3. The trip unit fixing apparatus of claim 1, wherein the bracket includes a bracket front portion and a bracket rear portion, the bracket front portion has a flat plate structure, the bracket rear portion has a channel structure, the bracket front portion has at least two mounting holes, the bracket rear portion has a fixing hole, and the bracket is mounted to the cover by a screw passing through the mounting hole and the fixing hole.

4. The trip unit fixing apparatus of claim 2, wherein a recess is formed in a back portion of the mounting hole, and the recess is engaged with a projection formed on the cover.

5. The trip unit fixing apparatus of claim 2, wherein the top of the front portion of the bracket is provided with a first groove, and the side of the front portion of the bracket is provided with a second groove, the first groove and the second groove forming a first channel.

6. The trip unit fixing apparatus of claim 4, wherein an end of the front portion of the bracket is provided with a resilient catch for engaging with a stop surface of the trip unit base.

7. The trip unit securing apparatus of claim 2, wherein said bracket rear includes a side wall and a bottom slot, said bracket rear and said cover side wall defining a second channel.

8. The trip unit fixing apparatus of claim 7, wherein said side wall is provided with at least two limit projections along a length direction.

9. The trip unit fixing apparatus of claim 1, wherein the rear of the trip unit base and the other side of the cover form a third passage.

10. A circuit breaker comprising the trip unit securing apparatus of any one of claims 1 to 9.