阅读说明：本技术 一种动端子及动端子的安装结构 (Movable terminal and movable terminal mounting structure ) 是由 马超杰 马建明 于 2019-08-27 设计创作，主要内容包括：本发明公开了一种动端子及动端子的安装结构,包括动接触片、基座以及插接柱,插接柱上设有动接触片安装面,基座上设有笼式弹簧接线端子安装槽,笼式弹簧接线端子安装槽通过绝缘槽道连通至动接触片安装面处,在动接触片安装面上设有止挡凸台,在插接柱上设有钩槽,动接触片上设有弯钩；弯钩沿插接柱厚度方向侧向卡入钩槽内。本发明的一种动端子,为了满足笼式弹簧接线端子的使用与安装需要,摒弃了以往动接触片沿插接柱长度方向上下安装的形式,而是采用了侧向安装的方式,保证了动接触片不会晃动,不会脱离动接触片安装面,也就提高了使用寿命以及使用安全性。此外,本发明的动端子的安装结构,实现中心距定位,消除累积误差。(The invention discloses a movable terminal and a mounting structure of the movable terminal, which comprise a movable contact piece, a base and a plug-in post, wherein the plug-in post is provided with a movable contact piece mounting surface; the hook is laterally clamped into the hook groove along the thickness direction of the plug column. According to the movable terminal, in order to meet the use and installation requirements of the cage type spring wiring terminal, the form that the conventional movable contact piece is vertically installed along the length direction of the plug-in post is abandoned, and a lateral installation mode is adopted, so that the movable contact piece is ensured not to shake and separate from the installation surface of the movable contact piece, and the service life and the use safety are improved. In addition, the mounting structure of the movable terminal realizes the positioning of the center distance and eliminates the accumulated error.)

1. A kind of moving terminal, characterized by: the movable contact piece comprises a vertical section and a bending section, the bending section is positioned in the insulating channel and extends into the cage-type spring connecting terminal mounting groove, a stopping boss used for limiting the movable contact piece to be separated from the insulating channel is fixedly arranged on the movable contact piece mounting surface, a hook groove which is not communicated with the head of the inserting column along the thickness direction of the inserting column, and a hook is arranged at the end of the vertical section, which is far away from the bending section; when the bending section is arranged in the insulating channel, the hook is laterally clamped into the hook groove along the thickness direction of the plug-in post, and meanwhile, the vertical section elastically deforms to cross the stop boss and is attached to the mounting surface of the movable contact piece to recover the deformation.

2. A moving terminal as claimed in claim 1, wherein: the stop boss is 2-4mm higher than the mounting surface of the movable contact piece.

3. A moving terminal as claimed in claim 1, wherein: along the length direction of the plug column, the stop boss is arranged in the middle of the mounting surface of the movable contact piece, and the length of the stop boss is 8-15 mm.

4. A moving terminal as claimed in claim 1, wherein: along the thickness direction of the plug column, the hook groove is provided with an open end and a closed end, and the open end and the stop boss are positioned on the same side edge of the plug column.

5. a moving terminal as claimed in claim 1, wherein: the stop boss is positioned at one side of the insertion column, and the thickness of the stop boss is 1-2 mm.

6. a moving terminal as claimed in claim 1, wherein: the insulation channel on at least one surface of the base is arranged along the edge of the base, on the surface, the insulation channel is designed in a sinking mode, a wider buckling groove is further arranged above the part of the insulation channel close to the root of the inserting column, a step is formed between the buckling groove and the insulation channel below the buckling groove, a cover plate is arranged in the buckling groove, the cover plate is in contact fit with the step, and the outer end face of the cover plate and the surface of the base are located on the same face.

7. The moving terminal as claimed in claim 6, wherein: the depth of the insulating channel outside the catching groove is larger than the height of the bending section.

8. Move the mounting structure of terminal, characterized by: the movable terminal comprises a movable terminal seat and the movable terminal as claimed in any one of claims 1 to 7, wherein the movable terminal seat comprises a bottom plate, a front plate and a rear plate, the front plate and the rear plate extend upwards from the front side and the rear side of the bottom plate, a plurality of movable terminal mounting positions are formed between the front plate and the rear plate, and each movable terminal is mounted at the corresponding movable terminal mounting position; a plurality of clamping grooves are formed in the upper end face of a rear plate of the movable terminal base along the length direction of the movable terminal base, and a clamping hook is arranged at the rear end of a base of the movable terminal; a plurality of bayonets are arranged on the front plate of the movable terminal seat along the length direction of the movable terminal seat, and clamping blocks are correspondingly arranged at the front end of the base; when the movable terminal is installed in the movable terminal installation position from top to bottom, the clamping hook is clamped into the clamping groove, meanwhile, the clamping block presses downwards to force the front plate to move outwards, and when the clamping block is clamped into the clamping groove, the front plate returns to the original state.

9. The mounting structure of the movable terminal according to claim 8, wherein: the fixture block is a salient point protruding out of the front end of the base, a plurality of wiring windows corresponding to the mounting positions of the movable terminals are arranged on the front plate of the movable terminal base, and the bayonets are formed in the upper edges of the wiring windows.

10. The mounting structure of the movable terminal according to claim 8, wherein: the clamping hook stretches across the clamping groove and abuts against the outer side face of the upper end of the rear plate, and the two sides of the clamping hook are stopped by the stop blocks.

Technical Field

the invention relates to the technical field of circuit breakers, in particular to a movable terminal and a mounting structure of the movable terminal.

Background

The current trend of circuit breakers towards the reduction of the external dimension is developing, in particular to the circuit breaker with small volume and more circuits; meanwhile, in order to ensure the reliability of the breaker during operation on the basis of small volume, a movable terminal and a fixed terminal are generally in surface-to-surface contact, most of movable terminals are integrated, and when the movable contact piece is installed in the up and down single directions, the movable contact piece is clamped on the movable terminal in a single side.

Moreover, some manufacturers set the cage type clamps for convenient wiring, rapidness and reliability, but connect the cage type clamps through the extension of the movable contact sheet in order to meet the requirement of installing the cage type clamps; after the extension, the contact element is bent, and the adoption of the upper and lower directions is obviously not suitable for installing the movable contact element with the shape.

Disclosure of Invention

The invention overcomes the defects in the prior art, and provides the movable terminal, which adopts a lateral installation mode, ensures that the movable contact piece cannot shake and separate from the installation surface of the movable contact piece, and improves the service life and the use safety.

furthermore, the invention also provides a mounting structure of the movable terminal, and realizes the positioning of the front and rear center distances, thereby reducing or avoiding the shaking of the movable terminal and eliminating the accumulated error; furthermore, the matching of the clamping block and the buckle also realizes the positioning in the vertical direction, and prevents the movable terminal from falling off the movable terminal base.

the technical scheme of the invention is realized as follows:

a movable terminal comprises a movable contact piece, a base and a plug-in post, wherein the plug-in post is provided with a root part and a head part, the root part of the plug-in post is attached to the base, the plug-in post is provided with an inner movable contact piece mounting surface and an outer movable contact piece mounting surface which are symmetrically arranged, the front surface and the back surface of the base are respectively provided with a cage type spring terminal mounting groove, the cage type spring terminal mounting grooves are communicated to the movable contact piece mounting surfaces through insulating channels, the movable contact piece comprises a vertical section and a bending section, the bending section is positioned in the insulating channels and extends into the cage type spring terminal mounting grooves, a stop boss used for limiting the movable contact piece to be separated from the insulating channels is fixedly arranged on the movable contact piece mounting surfaces, the head part of the plug-in post is provided with a hook groove which; when the bending section is arranged in the insulating channel, the hook is laterally clamped into the hook groove along the thickness direction of the plug-in post, and meanwhile, the vertical section elastically deforms to cross the stop boss and is attached to the mounting surface of the movable contact piece to recover the deformation. The utility model discloses a satisfy cage spring binding post's use and installation needs, abandoned the form of installing from top to bottom along the grafting post length direction of the past movable contact piece, but adopted the mode of side direction installation, when the crooked section of movable contact piece was put into the insulating channel along the direction of roughly perpendicular to base surface, go into the crotch card in the hook groove, and vertical section is then compelled to take place elastic deformation and leaps over the backstop boss, in order to laminate with movable contact piece installation face, resume deformation after laminating, like this, the vertical section of movable contact piece is stopped by backstop boss and hook groove that does not link up in the side direction, restricted its removal in the side direction; in the length direction of the splicing column, the movement of the vertical section is limited by the hook groove and the insulating channel where the bent section is located, so that the movable contact piece is ensured not to shake and separate from the mounting surface of the movable contact piece, and the service life and the use safety are improved; furthermore, the hook is provided with a first hook which can ensure that the vertical section of the movable contact piece is tightly attached to the mounting surface of the movable contact piece, and a second hook which can ensure that the distance between the vertical sections of the inner movable contact piece and the outer movable contact piece is kept consistent.

Preferably, the stop boss is 2-4mm higher than the mounting surface of the movable contact piece. The stop boss is arranged at the height, so that the deformation requirement of the vertical section is met, and the lateral movement of the vertical section is limited when the movable terminal is normally used.

Preferably, along the length direction of the plug column, the stop boss is arranged in the middle of the mounting surface of the movable contact piece, and the length of the stop boss is 8-15 mm. The stop boss is positioned in the middle of the root part and the head part of the insertion column, so that the vertical section has a certain deformation space when crossing the stop boss, and the operation is convenient.

preferably, the hook slot has an open end and a closed end along the thickness direction of the plug post, and the open end and the stop boss are positioned on the same side of the plug post. The hooks can only enter the hook slots from the open end in a lateral direction and cannot escape from the closed end, thereby defining the hook positions.

Preferably, the stopping boss is located at one side of the insertion column, and the thickness of the stopping boss is 1-2 mm. Due to the design, the stop boss does not occupy the area of the mounting surface of the movable contact piece too much, and more space is reserved for the vertical section of the movable contact piece.

preferably, the insulation channel on at least one surface of the base is arranged along the edge of the base, on the surface, the insulation channel is of a sinking type design, a wider buckling groove is further arranged above the part, close to the root part of the inserting column, of the insulation channel, a step is formed between the buckling groove and the insulation channel below the buckling groove, a cover plate is arranged in the buckling groove, the cover plate is in contact fit with the step, and the outer end face of the cover plate and the surface of the base are located on the same face. The shallow and wide buckling grooves are formed in the positions close to the roots of the plug sockets, the bending sections of the movable contact pieces are located in deeper insulating grooves, cover plates are covered in the buckling grooves, the creepage distance is increased, and the use safety is guaranteed when the movable terminals are abutted in pairs for specific application.

Preferably, the depth of the insulation channel outside the catching groove is greater than the height of the bent section. Therefore, the bending section is hidden in the middle lower part of the insulating channel, the creepage distance is increased, and the use safety is ensured.

The movable terminal mounting structure comprises a movable terminal seat and the movable terminals, wherein the movable terminal seat comprises a bottom plate, a front plate and a rear plate, the front plate and the rear plate extend upwards from the front side and the rear side of the bottom plate, a plurality of movable terminal mounting positions are formed between the front plate and the rear plate, and each movable terminal is mounted at the corresponding movable terminal mounting position; a plurality of clamping grooves are formed in the upper end face of a rear plate of the movable terminal base along the length direction of the movable terminal base, and a clamping hook is arranged at the rear end of a base of the movable terminal; a plurality of bayonets are arranged on the front plate of the movable terminal seat along the length direction of the movable terminal seat, and clamping blocks are correspondingly arranged at the front end of the base; when the movable terminal is installed in the movable terminal installation position from top to bottom, the clamping hook is clamped into the clamping groove, meanwhile, the clamping block presses downwards to force the front plate to move outwards, and when the clamping block is clamped into the clamping groove, the front plate returns to the original state.

The clamping of the clamping hook on the movable terminal and the clamping groove on the rear plate of the movable terminal seat realizes rear center distance positioning, the clamping of the clamping block on the movable terminal and the clamping opening on the front plate of the movable terminal seat realizes front center distance positioning, and the matching of the clamping block and the clamping hook realizes double center distance positioning of the movable terminal in the left and right directions, so that the shaking of the movable terminal is reduced or avoided, and accumulated errors are eliminated; furthermore, the matching of the clamping block and the buckle also realizes the positioning in the vertical direction, and prevents the movable terminal from falling off the movable terminal base.

Preferably, the fixture block is a convex point protruding out of the front end of the base, the front plate of the movable terminal base is provided with a plurality of wiring windows corresponding to the movable terminal mounting positions, and the bayonet is formed at the upper edge of each wiring window. The clamping block is a convex point, the forming is convenient, the wiring window not only plays a wiring role, but also serves as a clamping interface of the clamping block, and the clamping opening does not need to be additionally arranged, so that the double purposes are achieved.

Preferably, the two sides of the clamping groove form stop blocks, the clamping hook protrudes out of the rear end of the base, the clamping hook is formed by outwards extending the rear end of the base downwards, the clamping hook stretches across the clamping groove and abuts against the outer side face of the upper end of the rear plate, and the two sides of the clamping hook are stopped by the stop blocks. Such design makes the pothook play the additional strengthening, and the pothook cooperates with the base and embraces firmly on the back plate, has not only restricted the removal of moving terminal in the front and back direction, when moving terminal and quiet terminal are connected, receives under the condition of thrust, can prevent to warp, makes moving terminal mounting structure more stable firm.

The design starting point, the idea and the beneficial effects of the invention adopting the technical scheme are as follows:

According to the movable terminal, in order to meet the use and installation requirements of a cage type spring connecting terminal, the form that the conventional movable contact piece is installed up and down along the length direction of the plug-in post is abandoned, but a lateral installation mode is adopted, when the bent section of the movable contact piece is placed into the insulating channel along the direction approximately perpendicular to the surface of the base, the bent hook is clamped into the hook groove, the vertical section is forced to elastically deform to jump over the stop boss so as to be attached to the installation surface of the movable contact piece, and the deformation is recovered after the attachment, so that the vertical section of the movable contact piece is stopped by the stop boss and the hook groove which is not communicated in the lateral direction, and the movement of the vertical section in the lateral direction is limited; and in the length direction of the plug column, the movement of the vertical section is limited by the hook groove and the insulation channel where the bending section is located, so that the movable contact piece is ensured not to shake and separate from the movable contact piece mounting surface, and the service life and the use safety are also improved.

Furthermore, the hook is provided with a first hook which can ensure that the vertical section of the movable contact piece is tightly attached to the mounting surface of the movable contact piece, and a second hook which can ensure that the distance between the vertical sections of the inner movable contact piece and the outer movable contact piece is kept consistent.

in addition, according to the mounting structure of the movable terminal, the clamping hook on the movable terminal is buckled with the clamping groove on the rear plate of the movable terminal seat to realize rear center distance positioning, the clamping block on the movable terminal is clamped with the clamping opening on the front plate of the movable terminal seat to realize front center distance positioning, and the clamping block and the clamping hook are matched to realize double center distance positioning of the movable terminal in the left and right directions, so that the shaking of the movable terminal is reduced or avoided, and accumulated errors are eliminated.

furthermore, the matching of the clamping block and the buckle also realizes the positioning in the vertical direction, and prevents the movable terminal from falling off the movable terminal base.

Drawings

Fig. 1 is a schematic perspective view of a movable terminal after a movable contact piece is mounted in an embodiment of the invention;

FIG. 2 is a schematic perspective view of a movable terminal after a movable contact piece is mounted thereon according to an embodiment of the present invention;

FIG. 3 is a third schematic perspective view of the movable terminal after the movable contact piece is mounted thereon according to the embodiment of the present invention;

FIG. 4 is a first schematic perspective view of the movable terminal without the movable contact piece according to the embodiment of the present invention;

FIG. 5 is an enlarged view of portion b of FIG. 4;

FIG. 6 is a schematic perspective view of the movable terminal after the movable contact piece is mounted and the cover plate is not mounted according to the embodiment of the present invention;

FIG. 7 is an enlarged view of portion a of FIG. 6;

FIG. 8 is a first schematic view of a mounting structure of a movable terminal according to an embodiment of the present invention;

FIG. 9 is a second schematic view of the mounting structure of the movable terminal of the present invention;

FIG. 10 is a plan view of a mounting structure of a movable terminal in the embodiment of the invention;

3 FIG. 3 11 3 is 3 a 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 FIG. 3 10 3; 3

Fig. 12 is a side view of the mounting structure of the movable terminal of the present invention;

Fig. 13 is a third schematic view of the mounting structure of the movable terminal in the embodiment of the present invention.

The figures are numbered: a movable contact piece 1; a moving-contact-piece mounting surface 11; a vertical section 12; a curved section 13; a stopper boss 14; a base 2; cage spring terminal mounting slots 21; an insulating channel 22; a catching groove 221; a step 222; a cover plate 223; a hook 23; a latch 24; a plug column 3; a root portion 31; a head portion 32; a hook groove 33; an open end 331; a closed end 332; a hook 121; a movable terminal base 4; a bottom plate 41; front and rear plates 42, 43; a bayonet 421; a wiring window 422; a card slot 431; a stopper 432; an outer side 433; a moving terminal mounting location 45; and a movable terminal 5.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, the term "at least one" means one or more than one unless explicitly defined otherwise. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

the specific embodiment of the invention is as follows: