CN210296260U - Movable terminal of wiring terminal - Google Patents

Abstract

The utility model discloses a binding post's movable terminal, including moving contact piece, base and grafting post, the grafting post has root and head, the root of grafting post is attached to on the base, be equipped with two inside and outside movable contact piece installation faces that the symmetry set up on the grafting post, respectively be equipped with a cage spring binding post mounting groove on the positive and negative two surfaces of base, cage spring binding post mounting groove communicates to movable contact piece installation face department through insulating channel, at least the insulating channel on the base one surface is along base edge setting, on this surface, insulating channel be the formula of sinking design, be equipped with the apron above the part insulating channel that is close to the root of grafting post; the movable contact piece comprises a vertical section and a bending section, the vertical section is installed on the movable contact piece installation surface, and the bending section is located in the insulation channel and extends into the cage-type spring terminal installation groove. The creepage distance is increased by the design, and the use safety is improved.

Description

Movable terminal of wiring terminal

Technical Field

The utility model relates to a circuit breaker technical field, in particular to binding post's 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 working reliability of the circuit breaker on the basis of small volume, a movable terminal surface-to-surface contact mode is generally adopted, and the number of loops is adjusted by arranging the movable terminals in a movable terminal seat in a pairwise adjacent mode.

Moreover, some manufacturers set cage-type clamps for convenient wiring, rapidness and reliability, but connect cage-type terminals through extension of movable contact sheets in order to meet the requirement of installing the cage-type clamps; have the bending after extending, but in order to improve the safety in utilization, the cage terminal of moving terminal both sides sets up for staggering, just so makes when the cage terminal connects the movable contact piece have some channels inevitable to be close to the movable contact piece installation face on the plug, can cause the creepage distance not enough like this, causes the potential safety hazard.

Disclosure of Invention

The utility model overcomes exist not enough among the above-mentioned prior art, provide a move terminal, should move the terminal and make the improvement through the channel structure to self surface, set up the apron simultaneously to increase creepage distance, improved life and safety in utilization.

The technical scheme of the utility model is realized like this:

the movable terminal of the wiring 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 wiring terminal mounting groove, the cage-type spring wiring terminal mounting grooves are communicated to the movable contact piece mounting surfaces through insulating grooves, at least one insulating groove on one surface of the base is arranged along the edge of the base, on the surface, the insulating groove is designed in a sinking mode, a cover plate is arranged above part of insulating grooves close to; the movable contact piece comprises a vertical section and a bending section, the vertical section is installed on the movable contact piece installation surface, and the bending section is located in the insulation channel and extends into the cage-type spring terminal installation groove.

Preferably, a wider buckling groove is further arranged above a part of the insulating channel close to the root of the inserting column, a step is formed between the buckling groove and the insulating channel below the buckling groove, the 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 inserting columns, 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.

Preferably, the cover plate is arc-shaped.

Preferably, the cover plate and the base are made of plastic and made of the same material.

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

the insulation channel of the movable terminal near the root of the inserting column is further designed to sink, so that the movable contact piece is hidden in the insulation channel and is spaced from the channel opening; meanwhile, the cover plate is arranged outside, the creepage distance is increased, and the use safety is ensured when the movable terminals are adjacent in pairs for specific application.

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 (5)

1. Binding post's movable terminal, including moving contact piece, base and grafting post, the grafting post has root and head, and the root of grafting post attaches on the base, is equipped with two inside and outside movable contact piece installation faces that the symmetry set up on the grafting post, its characterized in that: the front surface and the back surface of the base are respectively provided with a cage type spring wiring terminal installation groove which is communicated to the movable contact piece installation surface through an insulation channel, at least one insulation channel on 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 cover plate is arranged above a part of insulation channel close to the root part of the inserting column, and the shape of the cover plate is matched with that of the insulation channel; the movable contact piece comprises a vertical section and a bending section, the vertical section is installed on the movable contact piece installation surface, and the bending section is located in the insulation channel and extends into the cage-type spring terminal installation groove.

2. The movable terminal of a connection terminal as claimed in claim 1, wherein: a wide buckling groove is further formed above a part of the insulating channel close to the root of the inserting column, a step is formed between the buckling groove and the insulating channel below the buckling groove, the 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.

3. The moving terminal of a connection terminal as claimed in claim 2, wherein: the depth of the insulating channel outside the catching groove is larger than the height of the bending section.

4. The movable terminal of a connection terminal as claimed in claim 1, wherein: the cover plate is arc-shaped.

5. The movable terminal of a connection terminal as claimed in claim 1, wherein: the cover plate and the base are made of the same material and are made of plastic.

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