CN210296258U - Movable connecting terminal - Google Patents

Abstract

The utility model discloses a movable connecting terminal, which comprises a movable terminal seat and a plurality of movable terminals arranged in the movable terminal seat side by side, wherein the movable terminal seat comprises a bottom plate, a front plate and a rear plate which 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 arranged at the corresponding movable terminal mounting position; a plurality of clamping grooves are formed in the upper end face of the rear plate of the movable terminal base along the length direction of the movable terminal base; the movable terminal comprises a base and an inserting column, and the rear end of the base of the movable terminal is provided with a clamping hook; 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, the inserting column spans over the upper part of the rear plate of the movable terminal seat, 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 utility model discloses a dual centre-to-centre spacing location has eliminated the accumulative error.

Description

Movable connecting terminal

Technical Field

The utility model relates to a circuit breaker technical field, in particular to move binding post.

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; the circuit breaker adopts drawer type binding post more, and it includes that the grafting cooperates moves binding post and quiet binding post, moves binding post including the combination terminal that moves and moves the terminal seat, and present moving terminal seat is the integration at present, and the integrated design has a higher requirement to the processing of product, and current producer hardly reaches, leads to the product contact of making not good, therefore leads to the integration to move the poor of terminal seat return circuit reliability.

Therefore, some manufacturers make improvements to make split type, and increase the contact surface between the contact pieces of the moving terminal and the fixed terminal, but because each moving terminal has a machining error, an accumulated error is easily caused, and if the center distance is not positioned, an accumulated error is caused, for example: the width of the mounting groove is 5mm, and the width of the movable terminal is 4.9mm, so that an error exists between the two.

Disclosure of Invention

The utility model overcomes the defects in the prior art, and provides a movable connecting terminal which realizes the positioning of the center distance between the front and the rear, 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 utility model is realized like this:

the movable terminal base comprises a bottom plate, a front plate and a rear plate, wherein the front plate and the rear plate extend upwards from the front side and the rear side of the bottom plate; a plurality of clamping grooves are formed in the upper end face of the rear plate of the movable terminal base along the length direction of the movable terminal base; the movable terminal comprises a base and an inserting column, and the rear end of the base of the movable terminal is provided with a clamping hook; 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, the inserting column spans over the upper portion of the rear plate of the movable terminal seat, 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.

Preferably, the fixture block protrudes 2-3mm from the front end surface of the base. To facilitate snapping into the bayonet.

Adopted above-mentioned technical scheme the utility model discloses a design departure point, theory and beneficial effect are:

the utility model discloses a move binding post, move the lock of pothook on the terminal and the draw-in groove on the terminal seat back plate and realize rear centre-to-centre spacing location, move the center-to-centre spacing location in the place ahead again of block on the terminal and the block of bayonet socket on the terminal seat front bezel, the dual centre-to-centre spacing location of direction about the terminal has been realized moving in the cooperation of block and pothook, reduces or has avoided moving rocking of terminal, has eliminated the accumulative 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.

Drawings

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

fig. 2 is a schematic perspective view of the movable terminal after the movable contact piece is mounted in the embodiment of the present invention;

fig. 3 is a schematic three-dimensional structure diagram of the movable terminal after the movable contact piece is mounted in the embodiment of the present invention;

fig. 4 is a schematic perspective view of the movable terminal of the embodiment of the present invention when the movable contact piece is not installed;

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 according to the embodiment of the present invention;

fig. 10 is a plan view of a mounting structure of a movable terminal according to an embodiment of the present invention;

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

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 according to 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 to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. 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 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 implementation manner of the utility model is as follows:

example (b): as shown in fig. 1-7, the present invention firstly provides a movable terminal 5, which comprises a movable contact piece 1, a base 2 and a plug-in post 3, wherein the plug-in post 3 has a root 31 and a head 32, the root 31 of the plug-in post 3 is attached to the base 2, the plug-in post 3 is provided with two inner and outer movable contact piece mounting surfaces 11 which are symmetrically arranged, the front and back surfaces of the base 2 are respectively provided with a cage-type spring terminal mounting groove 21, the cage-type spring terminal mounting groove 21 is communicated to the movable contact piece mounting surface 11 through an insulation channel 22, the movable contact piece 1 comprises a vertical section 12 and a bending section 13, the bending section 13 is positioned in the insulation channel 22 and extends into the cage-type spring terminal mounting groove 21, the movable contact piece mounting surface 11 is fixedly provided with a stop boss 14 for limiting the movable contact piece 1 to be separated from the insulation channel 22, the head 32 of the plug-in post 3 is provided with an unconnected, the end of the vertical section 12 away from the bending section 13 is provided with a hook 121; when the bending section 13 is placed in the insulation channel 22, the hook 121 is laterally clamped into the hook groove 33 along the thickness direction of the plug post 3, and the vertical section 12 elastically deforms to cross the stopping boss 14 and then returns to deform to be attached to the movable contact piece mounting surface 11.

Furthermore, the stopping boss 14 is arranged in the middle of the movable contact piece mounting surface 11, the stopping boss 14 is arranged at one side edge of the plug-in post 3, the thickness of the stopping boss 14 is 1-2mm, the stopping boss 14 is about 2-4mm higher than the movable contact piece mounting surface 11, and the length of the stopping boss 14 is 8-15mm along the length direction of the plug-in post 3.

Along the thickness direction of the plug post 3, the hook slot 33 has an open end 331 and a closed end 332, and the open end 331 and the stop boss 14 are located on the same side of the plug post 3. So that the hook 121 can only laterally enter the hook slot 33 from the open end 331 and cannot escape from the closed end 332, thereby defining the hook 121 position.

Still further, the insulation channel 22 on one surface of the base 2 is arranged along the edge of the base 2, on this surface, the insulation channel 22 is designed in a sinking manner, a shallow and wide catching groove 221 is also arranged above the part of the insulation channel 22 close to the root 31 of the inserting column 3, the depth of the insulation channel 22 outside the catching groove 221 is larger than the height of the bending section 13, a step 222 is formed between the catching groove 221 and the insulation channel 22 below the catching groove 221, a cover plate 223 is arranged in the catching groove 221, the cover plate 223 is in contact fit with the step 222, and the outer end surface of the cover plate 223 is on the same surface with the surface of the base 2; therefore, the bending section 13 of the movable contact piece 1 is positioned in the deeper insulation channel 22, namely the middle-lower part of the insulation channel 22, the cover plate 223 is covered in the buckle groove 221, the creepage distance is increased, and the use safety is ensured when the movable terminals 5 are abutted in pairs for specific application.

As shown in fig. 8-13, the present invention further provides a mounting structure of a movable terminal, including a movable terminal base 4 and the movable terminal 5, wherein the movable terminal base 4 includes a bottom plate 41 and a front plate and a rear plate 42, 43 extending upwards from the front and rear sides of the bottom plate 41, a plurality of movable terminal mounting positions 45 are formed between the front and rear plates 42, 43, and each movable terminal 5 is mounted at the corresponding movable terminal mounting position 45; a plurality of clamping grooves 431 are formed in the upper end face of the rear plate 43 of the movable terminal base 4 along the length direction of the movable terminal base 4, and a clamping hook 23 is arranged at the rear end of the base 2 of the movable terminal 5; a plurality of bayonets 421 are provided on the front plate 42 of the movable terminal base 4 along the length direction of the movable terminal base 4, and a latch 24 is correspondingly provided at the front end of the base 2.

Furthermore, the fixture block 24 is a convex point protruding from the front end of the base 2, the front plate 42 of the movable terminal base 4 is provided with a plurality of wiring windows 422 corresponding to the movable terminal mounting positions 45, and the bayonet 421 is formed at the upper edge of the wiring windows 422. When the movable terminal 5 is mounted in the movable terminal mounting position 45 from top to bottom, the hook 23 is clamped in the clamping groove 431, meanwhile, the clamping block 24 is pressed downwards to force the front plate 42 to move outwards, and when the clamping block 24 is clamped in the clamping opening 421, the front plate 42 returns to the original state.

Furthermore, two sides of the slot 431 form a stop 432, the hook 23 protrudes from the rear end of the base 2, the hook 23 extends outwards and downwards from the rear end of the base 2, the hook 23 stretches across the slot 431, the hook 23 abuts against the outer side surface 433 of the upper end of the rear plate 43, and two sides of the hook 23 are stopped by the stop 432. The clamping hook 23 plays a role in strengthening, the clamping hook 23 and the base 2 are tightly clamped on the rear plate 43 in a matched mode, the moving terminal 5 is limited to move in the front-rear direction, and when the moving terminal 5 is connected with the static terminal and is subjected to reverse thrust, deformation can be prevented, and the moving terminal mounting structure is stable and firm.

Claims (4)

1. Move binding post, characterized by: the movable terminal seat comprises a bottom plate, a front plate and a rear plate, wherein the front plate and the rear plate extend upwards from the front side and the rear side of the bottom plate; a plurality of clamping grooves are formed in the upper end face of the rear plate of the movable terminal base along the length direction of the movable terminal base; the movable terminal comprises a base and an inserting column, and the rear end of the base of the movable terminal is provided with a clamping hook; 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, the inserting column spans over the upper portion of the rear plate of the movable terminal seat, 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.

2. The dynamic terminal as claimed in claim 1, 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.

3. The dynamic terminal as claimed in claim 1, 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.

4. The dynamic terminal as claimed in claim 1, wherein: the clamping block protrudes 2-3mm from the front end surface of the base.

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