CN220172034U - Plug-in circuit breaker - Google Patents

Abstract

The plug-in circuit breaker comprises a shell, wherein a wiring hole and a button hole are formed in the operating end of the shell, the wiring hole corresponds to a wiring terminal arranged in the shell, an operation button sliding along a first direction is assembled in the button hole, an indication part is arranged on a pressing surface of the operation button, a protection part is further arranged at the operating end, the wiring hole, the protection part and the button hole are sequentially arranged along a second direction, a buckling groove is formed in one side, opposite to the operation button, of the protection part, the top wall of the protection part is higher than the pressing surface in the first direction, the width of the protection part in the third direction is larger than that of the operation button, the part, outside the button hole, of the operation button is not surrounded and covered by the protection part, and the first direction, the second direction and the third direction are mutually perpendicular. The operation end of the push button is provided with the protection part, the part of the operation button outside the button hole is not covered by the protection part in a surrounding way, the indication surface is not shielded, the linkage of two adjacent operation buttons is not interfered, and the handle groove of the protection part is favorable for drawing the operation buttons.

Description

Plug-in circuit breaker

Technical Field

The utility model relates to the field of piezoelectric devices, in particular to a plug-in circuit breaker.

Background

The circuit breaker is a switching device capable of closing, carrying and breaking current under normal or abnormal loop conditions, and is divided into a plug-in circuit breaker, a fixed circuit breaker, a drawer circuit breaker and the like according to the installation mode, wherein an operation button and a wiring terminal are commonly arranged at an operation end of the plug-in circuit breaker, and a protection device or a baffle is usually arranged at the operation end in order to avoid mutual interference between an external wire connected with the wiring terminal and the operation button, however, the existing protection device or the baffle has the following defects that firstly, part of pressing surfaces of the operation button are blocked, so that indication marks are not obvious or are blocked; secondly, the side wall of the operation buttons is completely protected by the protective device or the baffle plate, so that the connection of two adjacent operation buttons is not facilitated, and the drawing and the disassembly of the operation buttons are not facilitated; thirdly, when the plug-in circuit breaker is installed in or pulled out of the cabinet, the pulling is inconvenient.

Disclosure of Invention

The utility model aims to overcome at least one defect of the prior art and provide the plug-in circuit breaker with simple structure and high reliability.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the plug-in circuit breaker comprises a shell, the one end of shell is as the operation end, wiring hole and button hole have been seted up to the operation end, the wiring hole corresponds with the binding post that sets up in the shell, and button hole is built-in to be equipped with along the gliding operating button of first direction, and operating button's press surface is provided with the instruction portion, the operation end still is equipped with the protection part, wiring hole, protection part and button hole set gradually along the second direction, the knot hand groove has been seted up to one side of protection part dorsad operating button, and the roof of protection part is higher than the press surface in the first direction, and the width of protection part in the third direction is greater than operating button's width, and the part that operating button is located outside the button hole is not surrounded by protection part and covers, first direction, second direction and third direction mutually perpendicular.

Preferably, a drawing part is arranged on one side of the operation button, which is opposite to the protection part, in a protruding way.

Preferably, the protecting part is further provided with a holding part, and one side of the holding part, which is opposite to the operating button, of the protecting part is used for being matched with the drawing part to draw the operating button.

Preferably, the handle groove is located between the operation end and the holding part in the first direction, one side of the handle groove is used as the holding part, or a boss used as the holding part is convexly arranged at the edge position close to the handle groove; the handle groove penetrates through the protection part along the second direction.

Preferably, the protection part is provided with a drawing hole communicated along a third direction.

Preferably, the operation button is further provided with a linkage hole on a side wall in the third direction, and the protection part does not shield the side wall of the operation button in the third direction.

Preferably, the protection part is formed into a block-shaped boss by protruding in the middle of the operation end, one end wall of the block-shaped boss far away from the operation end is a top wall, and the handle groove is positioned between the top wall and the operation end.

Preferably, the protection part is formed by protruding in the middle part of the operation end to form a block-shaped boss, an open slot serving as a handle slot is formed at one end part of the block-shaped boss far away from the operation end, a connecting shaft is connected to the open part of the handle slot, and the side wall of the connecting shaft opposite to the operation end and the end wall of the open part of the handle slot are used as the top wall of the protection part together.

Preferably, the protection part comprises two L-shaped connecting arms, each connecting arm comprises a first connecting part extending along a first direction and a second connecting part extending along a third direction, the first end of the first connecting part is connected with the operation end along the first direction, the second connecting parts are opposite at intervals in the third direction, the second ends of the first connecting parts are provided with drawing holes, the two second connecting parts are in opposite butt joint along the third direction through the drawing holes, and one sides of the two second connecting parts opposite to the operation end form the top wall of the protection part.

Preferably, the shell comprises a first cover body and a second cover body which are mutually covered, and one ends of the first cover body and the second cover body are respectively provided with a connecting arm in a protruding mode along a first direction.

Preferably, the other end of the housing opposite to the operation end is a plugging end, and the side wall of the housing connected between the operation end and the plugging end is provided with at least one guiding part along the first direction, and the guiding part protrudes along the second direction.

Preferably, the other end of the housing opposite to the operation end is a plug end, a pair of wire insertion openings are formed in the plug end, and the pair of wire insertion openings are arranged at intervals along the second direction.

According to the plug-in circuit breaker, the protection part is arranged at the operation end of the plug-in circuit breaker, the protruding degree of the protection part in the first direction and the third direction is larger than that of the operation button, the operation button and an external lead connected to the wiring terminal are prevented from interfering with each other, the part of the operation button, which is positioned outside the button hole, cannot be covered by the protection part in a surrounding mode, the top surface of the protection part can be prevented from shielding the indication part of the pressing surface, the operation buttons of two adjacent plug-in circuit breakers cannot be interfered with each other, and meanwhile, the protection part is provided with the buckling groove, so that the operation button can be pulled conveniently.

In addition, the operation button sets up the portion of drawing in the side of the protection portion that is facing away from, and the protection portion is provided with and draws portion complex gripping portion, especially gripping portion can set up in the knot hand groove or close to the border position in knot hand groove, conveniently draws operation button.

In addition, the protection part is provided with a drawing hole communicated along a third direction, and the drawing hole can be used for drawing the circuit breaker when the plug-in circuit breaker is installed or pulled out, so that the circuit breaker is convenient to disassemble and assemble.

In addition, the side wall of the shell is also provided with a guide part arranged along the first direction, so that a guide effect is provided for the installation of the plug-in circuit breaker.

Drawings

Fig. 1 is a schematic view of a plug-in circuit breaker according to the present utility model;

fig. 2 is a schematic structural view of the plug-in circuit breaker (the holding part is positioned in the buckle groove);

fig. 3 is a schematic structural view of a plug-in circuit breaker (a grip portion is provided to protrude) according to the present utility model;

fig. 4 is a schematic structural view of two plug-in circuit breakers of the present utility model;

FIG. 5 is a schematic view of the structure of the guard and the connecting shaft according to the present utility model;

reference numerals:

1-shell, 11-wiring hole, 12-wiring jack, 13-guide part, 2-operation button, 2 a-pressing surface, 21-drawing part, 22-indicating part, 23-linkage hole, 3-protection part, 3 a-top wall, 31-connecting arm, 32-holding part, 33-buckle slot, 34-drawing hole, 35-connecting shaft, 4-locking part, a-operation end and b-plug end.

Detailed Description

Embodiments of the plug-in circuit breaker of the present utility model are further described below with reference to the examples given in the accompanying drawings. The plug-in circuit breaker of the present utility model is not limited to the description of the following embodiments.

As shown in fig. 1, the plug-in circuit breaker comprises a housing 1, at least one pair of wire connecting assemblies are respectively arranged at two ends of the housing 1, a button mechanism which is in sliding fit with the housing 1 is further arranged at one end of the housing 1, the button mechanism and the wire connecting assemblies at the same end are arranged side by side, an operating mechanism and a contact mechanism are arranged between the wire connecting assemblies at two ends of the housing 1, the contact mechanism comprises a moving contact and a fixed contact which are mutually matched, the button mechanism, the operating mechanism and the moving contact are connected in a linkage manner, and the moving contact and the fixed contact can be driven to contact or separate by pressing or pulling the button mechanism, so that the switching-on and switching-off of the circuit breaker can be manually driven.

Specifically, the opposite ends of the housing 1 are an operation end a and a plugging end b, a connection line direction from the operation end a to the plugging end b is taken as a first direction of the housing 1, a wiring hole 11 and a button hole are formed in the operation end a, the button hole and the wiring hole 11 are arranged side by side along a second direction of the housing 1, two wiring jacks 12 are formed in the plugging end b, the two wiring jacks 12 are arranged at intervals along a second direction, two adjacent plug-in circuit breakers are arranged side by side along a third direction, the first direction, the second direction and the third direction are mutually perpendicular, in fig. 1 and 4, the first direction is a length direction (up-down direction in the drawing), the second direction is a height direction (left-right direction in the drawing) of the housing 1, and the third direction is a thickness direction (vertical paper direction in the drawing) of the housing 1; each pair of wiring components comprises a wiring terminal or a wiring clip, in this embodiment, the wiring terminal is disposed at an operation end a and corresponds to a wiring hole 11, the wiring clip is correspondingly assembled in a wiring jack 12, other wiring structures can be adopted, the button mechanism comprises an operation button 2, the operation button 2 is slidingly assembled in the button hole, one end face of the operation button 2 is used as a pressing face 2a to stretch out of the housing 1, the operation button 2 slides in the button hole along a first direction, the other end of the operation button 2 located in the housing 1 is linked with the operation mechanism, switching on and off of the circuit breaker is realized, an indication part 22 is disposed on the pressing face 2a of the operation button 2 and used for indicating the switching on and off state of the circuit breaker, the indication part 22 is an indication hole or a transparent window, and an indication lamp or an indication piece is disposed in the operation button 2 or the housing 1.

The shell 1 is internally provided with an arc extinguishing system and a protection mechanism in a matched mode, wherein the arc extinguishing system is matched with the contact mechanism for extinguishing an arc, the protection mechanism is matched with the operating mechanism for realizing short circuit or overload protection, the protection mechanism comprises a short circuit protection mechanism and/or an overload protection mechanism, the short circuit protection is realized by the matching of the short circuit protection mechanism and the operating mechanism, and the overload protection is realized by the matching of the overload protection mechanism and the operating mechanism, so that the protection mechanism is in the prior art.

In addition, still be provided with locking mechanical system in shell 1, shell 1's lateral wall still is equipped with spacing hole, locking mechanical system's locking part 4 cooperation stretches out shell 1 from spacing hole or withdraws in the shell 1, plug-in circuit breaker inserts in the installation rack, when plug-in circuit breaker installs in place, spacing hole corresponds with the mounting hole of installation rack, locking mechanical system's locking part 4 cooperation stretches out from spacing hole and blocks into the mounting hole, realize locking, when plug-in circuit breaker pulls out from the installation rack, first make locking part 4 withdraw in shell 1 through drawing operating button 2 or other unlatching piece of operation, then pull out plug-in circuit breaker, this is prior art in the field.

The improvement point of the utility model is that the operation end a is also provided with a protection part 3, the wiring hole 11, the protection part 3 and the button hole are sequentially arranged along the second direction, one side of the protection part 3 facing away from the operation button 2 is provided with a buckling groove 33, the protection part 3 is positioned between the wiring hole 11 and the button hole, the top wall 3a of the protection part 3 is higher than the pressing surface 2a in the first direction, the width of the protection part 3 in the third direction is larger than the width of the operation button 2, the part of the operation button 2 positioned outside the button hole is not surrounded and covered by the protection part 3, the protruding degree of the protection part 3 in the first direction and the third direction is larger than the operation button 2, the operation button 2 and an external wire connected to the wiring terminal are prevented from interfering with each other, meanwhile, the part of the operation button 2 positioned outside the button hole is not surrounded and covered by the protection part 3, the pressing surface 2a is prevented from being blocked by the protection part 3a, the pressing and the pulling are influenced, of course, the protection part 3 is also prevented from blocking the indication part 22 of the pressing surface 2a, and the operation of two adjacent push button linkages 2 are not interfered.

Preferably, a drawing part 21 is arranged on one side of the operation button 2, which is opposite to the protection part 3, and the drawing part 21 arranged in a protruding way is beneficial to drawing the operation button 2; furthermore, a grip portion 32 and/or a handle groove 33 are further disposed on a side of the protection portion 3 facing away from the operation button 2, which is beneficial to drawing the operation button 2.

Preferably, as shown in fig. 1, 2 and 4, the protecting part 3 is further provided with a drawing hole 34 arranged along a third direction, when the plug-in circuit breaker is installed or pulled out, a pull ring or other device can be connected to the drawing hole 34 for pulling the plug-in circuit breaker, the drawing hole 34 can penetrate the protecting part 3 or not penetrate the protecting part 3, in addition, in the installation cabinet, by installing a pin shaft or the like in the drawing hole 34, the protecting parts 3 of two adjacent plug-in circuit breakers are connected together, and the two adjacent protecting parts 3 are connected together conveniently.

Preferably, as shown in fig. 4, the operation button 2 is further provided with a linkage hole 23 on a side wall of the third direction for linkage rod insertion to link the operation buttons 2 of adjacent plug-in circuit breakers. The protection part 3 not only does not cover the top wall 3a but also does not cover the pressing surface 2a and the side wall of the operation button 2 in the third direction, and further does not cover the linkage hole 23.

An embodiment of a plug-in circuit breaker is provided in connection with fig. 1-5.

The plug-in circuit breaker includes shell 1, shell 1 wholly is the cuboid structure, operating end a and plug end b are respectively regarded as to the both ends of shell 1, the inside wiring hole 11 of intercommunication and button hole have been seted up to operating end a end wall at shell 1, the protrusion is equipped with guard 3 between wiring hole 11 and button hole, make wiring hole 11, guard 3 and button hole set gradually along the second direction in operating end a wholly, wherein, in first direction, guard 3's protrusion height is greater than operating button 2's protrusion height, in the third direction, guard 3's width is greater than operating button 2's width, and operating button 2 is located the part outside the button hole can not be surrounded by guard 3 and cover, namely, guard 3's roof 3a is higher than operating button 2's pressing surface 2a, guard 3's lateral wall is more protruding than operating button 2's lateral wall, but guard 3 does not extend outwards and encircles the extending structure who covers operating button 2, make operating button 2's pressing surface 2a, lateral wall expose completely, the instruction of convenient indicator 22, the indicator 22's width is greater than operating button 2's width, and the indicator is used for two adjacent operating button 2, indicator window 1 is implemented for indicator window 22 in the indicator 1, indicator window 4, indicator 1 is just adopted in the indicator window 1.

In this embodiment, the drawing portion 21 is protruding from the side of the protecting portion 3 opposite to the operating button 2, in fig. 1-5, the drawing portion 21 is located at one end close to the pressing surface 2a, that is, one end far away from the button hole, so that the operating button 2 is conveniently drawn, the holding portion 32 is disposed on the side of the protecting portion 3 opposite to the operating button 2, the holding portion 32 is preferably in a protruding structure, or the protecting portion 3 is provided with a buckling groove 33 and the holding portion 32 to form a concave-convex structure in cooperation, so that force is applied when the operating button 2 is drawn.

As shown in fig. 2, a grip groove 33 penetrating in the second direction is formed on a side of the protecting portion 3 facing away from the operation button 2, the grip groove 33 is rectangular overall, in this embodiment, the width of the grip groove 33 in the third direction is smaller than the width of the operation button 2, a gap is prevented from being formed between the grip groove 33 and the edge of the operation button 2, the grip groove 33 forms a pull ring structure on the protecting portion 3 at the operation end a, and a side wall facing the operation end a from the grip groove 33 is used as the holding portion 32, and it may be understood that the holding portion 32 is located in the grip groove 33, or it may be considered that only the grip groove 33 is provided to be engaged with the drawing portion 21.

Of course, as shown in fig. 3 and 5, a protruding holding portion 32 may be provided on the side of the protecting portion 3 facing away from the operation button 2, and in this case, the catch groove 33 may be located between the operation end a and the holding portion 32 in the first direction, and the holding portion 32 may be located near the edge of the catch groove 33, or only the protruding holding portion 32 may be provided, but the protruding height of the holding portion 32 may be increased, so that a holding space may be provided, and the catch groove 33 may not be provided.

As shown in fig. 1, 2 and 4, a drawing hole 34 communicating in the third direction is further formed in the protecting portion 3, preferably the drawing hole 34 is located at one end of the protecting portion 3 away from the operation end a, two adjacent protecting portions 3 may be connected together through the drawing hole 34, in addition, the protecting portion 3 may be a unitary structure or a split structure, and when the protecting portion 3 is in a split structure, the drawing hole 34 may connect two split portions together to form a unitary structure of the protecting portion 3.

A split-structure guard 3 is provided in connection with fig. 1, 4. The protection part 3 includes two connecting arms 31 with opposite intervals, the casing 1 of this embodiment preferably includes a first cover body and a second cover body that mutually cover, the same end of the first cover body and the second cover body is provided with one connecting arm 31 along the first direction protrusion respectively, each connecting arm 31 in the figure is in an L shape as a whole, each connecting arm 31 includes a first connecting part extending along the first direction and a second connecting part extending along the third direction, the first end of the first connecting part is connected with the operation end a along the first direction, the second connecting parts are opposite at intervals in the third direction, the second end of the first connecting part is provided with a drawing hole 34, and the two second connecting parts are butted in opposite directions along the third direction through the drawing hole 34, so that one side of the two second connecting parts opposite to the operation end a forms the top wall 3a of the protection part 3. In addition, a pair of connecting arms may be provided with connecting holes, and screws or rivets may be correspondingly fitted in the connecting holes, so that the two connecting arms 31 may be stably connected together. Of course, the second ends of the two connecting arms 31 may also be bonded or otherwise connected together.

Another construction of the guard 3 is provided in connection with fig. 1, 5. The protection part 3 is formed by protruding the middle part of the operation end a to form a block-shaped boss, in the figure, an opening groove serving as a handle groove 33 is formed at one end part of the block-shaped boss far away from the operation end a, a connecting shaft 35 arranged along a third direction is connected to the opening part of the handle groove 33, and the side wall of the connecting shaft 35 opposite to the operation end a and the end wall of the opening part of the handle groove 33 are used as the top wall 3a of the protection part 3 together, and it is noted that connecting pieces of other structures can be connected to the opening part of the handle groove 33.

Of course, the connecting shaft 35 may be omitted, the handle groove 33 may be directly formed in the middle of the block-shaped boss, and the handle groove 33 may penetrate through the block-shaped boss along the second direction, or the handle groove 33 may be of a single-sided groove structure, at this time, an end wall of the block-shaped boss far from the operation end a is used as the top wall 3a, and the handle groove 33 is located between the top wall 3a and the operation end a.

A pair of wire inserting openings 12 are arranged at the inserting and pulling end b of the shell 1, the wire inserting openings 12 are arranged at intervals along the second direction, and a jointing clamp is correspondingly arranged in each wire inserting opening 12; the side wall of the housing 1 connected between the operating end a and the plugging end b is provided with at least one guiding part 13, the guiding part 13 extends along a first direction, in fig. 1-5, the guiding part 13 is a strip-shaped boss, the protruding direction of the guiding part is a second direction, preferably, a guiding groove matched with the guiding part 13 is formed in the installation cabinet, and the guiding function can be achieved when the plug-in circuit breaker is inserted into the installation cabinet.

The side wall of the housing 1 opposite to the guide portion 13 is provided with a limit hole, so that the locking mechanism assembled in the housing 1 is correspondingly matched with the limit hole, and in addition, the wiring assembly, the button mechanism, the operating mechanism and the contact mechanism assembled in the housing 1 can adopt the prior art.

It should be noted that, in the description of the present utility model, the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate an orientation or a positional relationship based on that shown in the drawings or an orientation or a positional relationship conventionally put in use, and are merely for convenience of description, and do not indicate that the apparatus or element to be referred to must have a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating relative importance.

The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.

Claims (12)

1. The utility model provides a plug-in circuit breaker, includes shell (1), the one end of shell (1) is as operating end (a), wiring hole (11) and button hole have been seted up to operating end (a), wiring hole (11) correspond with the binding post that sets up in shell (1), button hole is equipped with in the button hole along the gliding operating button (2) of first direction, and the pressing surface (2 a) of operating button (2) are provided with instruction portion (22), its characterized in that: the operation end (a) is further provided with a protection part (3), the wiring hole (11), the protection part (3) and the button hole are sequentially arranged along the second direction, a buckling groove (33) is formed in one side, opposite to the operation button (2), of the protection part (3), the top wall (3 a) of the protection part (3) is higher than the pressing surface (2 a) in the first direction, the width of the protection part (3) in the third direction is larger than the width of the operation button (2), the part, located outside the button hole, of the operation button (2) is not surrounded and covered by the protection part (3), and the first direction, the second direction and the third direction are mutually perpendicular.

2. The plug-in circuit breaker according to claim 1, characterized in that: the side of the operating button (2) opposite to the protection part (3) is convexly provided with a drawing part (21).

3. The plug-in circuit breaker according to claim 2, characterized in that: the protection part (3) is also provided with a holding part (32), and the holding part (32) is positioned at one side of the protection part (3) opposite to the operation button (2) and is used for being matched with the drawing part (21) to draw the operation button (2).

4. A plug-in circuit breaker according to claim 3, characterized in that: the handle groove (33) is positioned between the operation end (a) and the holding part (32) in the first direction, one side of the handle groove (33) is used as the holding part (32), or a boss which is used as the holding part (32) is arranged at the edge position close to the handle groove (33) in a protruding way; the handle groove (33) penetrates the protection part (3) along the second direction.

5. The plug-in circuit breaker according to claim 1, characterized in that: the protection part (3) is provided with a drawing hole (34) communicated along a third direction.

6. The plug-in circuit breaker according to claim 1, characterized in that: the operation button (2) is further provided with a linkage hole (23) on the side wall in the third direction, and the protection part (3) does not shade the side wall of the operation button (2) in the third direction.

7. The plug-in circuit breaker according to claim 1, characterized in that: the protection part (3) is formed by protruding the middle part of the operation end (a) to form a block-shaped boss, the end wall of one end of the block-shaped boss far away from the operation end (a) is a top wall (3 a), and the buckling groove (33) is positioned between the top wall (3 a) and the operation end (a).

8. The plug-in circuit breaker according to claim 1, characterized in that: the protection part (3) is formed by the middle part protrusion of operating end (a) and is blocky boss, the one end tip that blocky boss kept away from operating end (a) has been seted up and has been regarded as the open slot of knot hand groove (33), is connected with connecting axle (35) in the opening part of knot hand groove (33), is regarded as roof (3 a) of protection part (3) jointly by the lateral wall of connecting axle (35) back to operating end (a) and the opening part end wall of knot hand groove (33).

9. The plug-in circuit breaker according to claim 1, characterized in that: the protection part (3) comprises two L-shaped connecting arms (31), each connecting arm (31) comprises a first connecting part extending along a first direction and a second connecting part extending along a third direction, the first end of the first connecting part is connected with the operation end (a) along the first direction, the second connecting parts are opposite at intervals in the third direction, the second ends of the first connecting parts are provided with drawing holes (34), the two second connecting parts are oppositely butted along the third direction through the drawing holes (34), and one sides of the two second connecting parts opposite to the operation end (a) form a top wall (3 a) of the protection part (3).

10. The plug-in circuit breaker according to claim 9, characterized in that: the shell (1) comprises a first cover body and a second cover body which are mutually covered, and one ends of the first cover body and the second cover body are respectively provided with a connecting arm (31) in a protruding mode along a first direction.

11. The plug-in circuit breaker according to claim 1, characterized in that: the other end of the shell (1) opposite to the operation end (a) is a plug end (b), at least one guide part (13) along a first direction is arranged on the side wall of the shell (1) connected between the operation end (a) and the plug end (b), and the guide part (13) protrudes along a second direction.

12. The plug-in circuit breaker according to claim 1, characterized in that: the other end of the shell (1) opposite to the operation end (a) is a plug end (b), a pair of wire inserting ports (12) are formed in the plug end (b), and the wire inserting ports (12) are arranged at intervals along the second direction.