CN217588825U - Circuit breaker - Google Patents

Abstract

The utility model provides a circuit breaker relates to electrical switch technical field, including retaining member and two cutter body groups, the retaining member is connected so that two cutter body groups set up relatively and are used for the centre gripping fuse-link with two cutter body groups. Because two independent cutter body groups of slotting tool still directly provide opposite clamping-force to two cutter body groups when the centre gripping fuse-link by the locking force of retaining member when realizing connecting through the retaining member, so it can avoid current slotting tool just can provide opposite clamping-force because integration makes both ends adopt the structure of turning over in opposite directions and roll over, consequently, two cutter body groups can reduce the volume that occupies owing to the structure of turning over in opposite directions, thereby effectively reduce the holistic volume of slotting tool, reduce the inside degree of difficulty of laying of circuit breaker, and simultaneously, improve circuit breaker inner structure's compactedness. In addition, because a structure capable of being turned inwards in opposite directions is avoided, the material consumption is less during manufacturing, the manufacturing cost of a finished product is reduced, and the market competitiveness of the product is improved.

Description

Circuit breaker

Technical Field

The utility model relates to an electrical switch technical field particularly, relates to a circuit breaker.

Background

With the rapid development of economy, the living standard of people is rapidly improved, and higher requirements are made on electricity safety. The circuit breaker can be installed on a distribution line because of its good breaking capacity. Meanwhile, the circuit can be connected, carried and disconnected under the condition of normal or abnormal circuit, and the circuit and the electrical equipment are effectively protected. With the intensive research on the circuit breaker, the technology of opening and closing the circuit breaker is gradually matured.

The existing circuit breaker is generally provided with a slotting tool and a fuse link, the fuse link is inserted into the slotting tool in a plugging mode, in order to ensure reliable contact between the slotting tool and the fuse link, two ends of the slotting tool are generally of structures which are turned inwards in opposite directions, but the slotting tool structure is not beneficial to arrangement of an internal structure of the circuit breaker because the structures are wholly large due to the turning inwards.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a slotting tool and circuit breaker to the not enough among the above-mentioned prior art to solve current slotting tool and turn over the great problem of overall structure volume inwards in opposite directions.

In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:

the embodiment of the utility model provides an aspect provides a slotting tool, including retaining member and two cutter body groups, the retaining member is connected so that two cutter body groups set up relatively and are used for the centre gripping fuse-link with two cutter body groups.

Optionally, one end of each of the two cutter body groups is connected with the locking piece, and the other end of each of the two cutter body groups is used for deforming so as to clamp the fuse-link.

Optionally, the clamping device further comprises a clamping member, and the clamping member comprises at least two clamping ends, and the at least two clamping ends act on the two cutter body groups respectively to provide clamping force for the two cutter body groups to approach each other.

Optionally, at least two abutting grooves are respectively arranged on one side, away from each other, of the two cutter body groups, and the abutting grooves correspond to the clamping ends one to one and are used for accommodating the clamping ends.

Optionally, the clamping end is a clamping tip.

Optionally, the clamping piece is a ring with a notch, a groove is formed in the same side of the two cutter body groups, a protrusion is arranged on the side wall, close to the abutting groove, of the groove, and the protrusion is used for abutting against the ring when the clamping end of the ring is located in the abutting groove.

Optionally, guide folding edges are further respectively arranged on the clamping sides of the two cutter body groups.

Optionally, still be provided with the logical groove of following centre gripping fuse-link direction and lining up on the cutter body group.

Optionally, two oppositely arranged cutter body groups are further respectively formed with mutually distant arching portions, so that a clamping cavity is formed between the mutually distant arching portions.

The embodiment of the utility model provides an on the other hand provides a circuit breaker, including fuse-link, static contact and above-mentioned any kind of slotting tool, fuse-link and static contact are connected with the both ends of slotting tool respectively.

Optionally, the two cutter body groups of the slotting tool are respectively arranged on two sides of the static contact and used for clamping the static contact when the locking part is connected with the two cutter body groups.

The beneficial effects of the utility model include:

the utility model provides a slotting tool can include two cutter body groups, in order to realize reliability and stability that fuse-link and slotting tool contact switched on, can carry out locking connection with two cutter body groups through the retaining member to two cutter body groups can fix the fuse-link that inserts between two relative cutter body groups with the mode of centre gripping, thereby realize the reliable contact of slotting tool and fuse-link. On this basis, because two independent cutter body groups of slotting tool still provide clamping-force in opposite directions to two cutter body groups when the centre gripping fuse-link by the locking force of retaining member is direct when the retaining member realizes connecting through the retaining member, so it can avoid current slotting tool just can provide opposite clamping-force owing to the integration makes both ends adopt the structure of turning over in opposite directions and rolls over, consequently, two cutter body groups can reduce because the volume that the structure of turning over in opposite directions occupy, thereby effectively reduce the holistic volume of slotting tool, reduce the inside degree of difficulty of laying of circuit breaker, and simultaneously, improve circuit breaker inner structure's compactedness. In addition, because a structure capable of being turned inwards in opposite directions is avoided, the material consumption is less during manufacturing, the manufacturing cost of a finished product is reduced, and the market competitiveness of the product is improved.

The utility model provides a circuit breaker is applied to circuit breaker with foretell slotting tool, is about to it sets up in circuit breaker, and the static contact can realize connecting through slotting tool and fuse-link, when laying, can lay the both ends of slotting tool respectively with fuse-link and static contact, can avoid interference between them, improves the rationality of laying. The fuse link is clamped by the two cutter body groups of the slotting tool under the action of the locking piece, so that the volume of the slotting tool can be effectively reduced, the occupied volume of the slotting tool in the circuit breaker is reduced, and the reasonability of the internal layout of the circuit breaker is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a slotting tool according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a clamping member of a slotting tool according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a cutter body group of a slotting cutter provided in an embodiment of the present invention;

fig. 4 is a second schematic structural view of a slotting tool according to an embodiment of the present invention.

Icon: 100-a cutter body group; 110-an abutment groove; 120-grooves; 121-projection; 130-a camber; 131-a clamping cavity; 140-guiding the hem; 150-through slots; 200-a locking member; 300-a clamping member; 310-a clamping end; 311-a clamping tip; 400-fixed contact.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. It should be noted that, in the case of no conflict, various features in the embodiments of the present invention may be combined with each other, and the combined embodiments are still within the scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when used, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

An aspect of the embodiment of the present invention provides a slotting cutter, including retaining member 200 and two cutter body groups 100, retaining member 200 is connected with two cutter body groups 100 so that two cutter body groups 100 set up relatively and are used for the centre gripping fuse-link.

As an example, a multi-phase conductive loop may be disposed in the circuit breaker, wherein, on each conductive loop, a fuse link may be disposed to protect the circuit, and when the fuse link is disposed, the fuse link may be connected to the static contact 400 through a plug-in blade, and cooperate with the opening and closing motion of the moving contact, thereby implementing the basic structure of the circuit. Because the fuse link can realize the circuit breaking protection of the whole circuit by self-fusing under the condition that the circuit is abnormally conducted, the damage of load equipment is avoided, and therefore, the convenience of replacement needs to be considered in the design of the fuse link.

In this embodiment, as shown in fig. 1, the slotting tool may include two tool body sets 100, and in order to implement the reliability and stability of the contact and conduction between the fuse link and the slotting tool, the two tool body sets 100 may be locked and connected by a locking member 200, so that the two tool body sets 100 may fix the fuse link inserted between the two oppositely disposed tool body sets 100 in a clamping manner, thereby implementing the reliable contact between the slotting tool and the fuse link. On this basis, because two independent cutter body groups 100 of slotting tool still directly provide opposite clamping force to two cutter body groups 100 when the centre gripping fuse-link by the locking force of retaining member 200 when realizing connecting through retaining member 200, so it can avoid current slotting tool just can provide opposite clamping force because the integration makes both ends adopt the structure of turning over in opposite directions and roll over, consequently, two cutter body groups 100 can reduce the volume that occupies owing to the structure of turning over in opposite directions, thereby effectively reduce the holistic volume of slotting tool, reduce the inside degree of difficulty of laying of circuit breaker, and simultaneously, improve the compactness of circuit breaker inner structure. In addition, because a structure capable of being turned inwards in opposite directions is avoided, the material consumption is less during manufacturing, the manufacturing cost of a finished product is reduced, and the market competitiveness of the product is improved.

In practical use, the two cutter body groups 100 can be locked by the locking member 200 to realize relative arrangement and then installed in the circuit breaker, and then the fuse link is positioned between the two cutter body groups 100 in an inserted manner and clamped by the two cutter body groups 100, that is, the plugging end of the fuse link is gradually close to the plugging end of the two cutter body groups 100, and along with the continuous movement of the plugging end of the fuse link, the fuse link is gradually plugged into the space between the two oppositely arranged cutter body groups 100, so that the clamping of the two cutter body groups 100 on the fuse link under the action of the locking member 200 is completed. Each blade body group 100 may include at least one blade body block, blade body piece, etc., and at least one blade body may be locked and connected by one or more locking members 200, or may be connected by welding, etc. to form an integral blade body group 100 structure. The two blade sets 100 may be connected by one, two or more locking members 200. Retaining member 200 can be in the form of a bolt, screw, or the like.

Alternatively, one end of the two blade assemblies 100 is connected to the locker 200, and the other end is deformed to hold the fuse link.

For example, as shown in fig. 1, in order to avoid the fuse-link interfering with the locking member 200 when the blade is inserted into the blade holder, one end of two oppositely disposed blade sets 100 may be connected to the locking member 200, and the other end (e.g., the upper end in fig. 1) is used for inserting and pulling the fuse-link. In order to improve the contact reliability of the slotting tool when the slotting tool clamps the fuse-link, the slotting tool can also provide deformation force through deformation when clamping the fuse-link, and therefore the contact stability of the slotting tool and the fuse-link is further enhanced. Because the cutter body group 100 has certain deformability at the plugging end, the service life of the cutter body group can be effectively prolonged in actual use.

Optionally, a clamping member 300 is further included, wherein the clamping member 300 includes at least two clamping ends 310, and the at least two clamping ends 310 respectively act on the two cutter body groups 100 to provide a clamping force to the two cutter body groups 100 to approach each other.

For example, as shown in fig. 1 and 2, in order to further improve the good conduction capability between the blade and the fuse link when connecting, a clamping member 300 may be further provided, and the clamping member 300 may further provide opposite clamping forces to the two blade groups 100. When provided, at least two clamping ends 310 of the clamping member 300 may abut against the two cutter body groups 100 respectively to provide clamping force thereto, and the clamping force may be various forms of deformation force (when the clamping member 300 is an elastic member), driving force (when the clamping member 300 is a driver), and the like.

In the case of two clamping ends 310, one clamping end 310 is in corresponding abutment with one cutter body group 100, i.e. there is one clamping end 310 on each of the two cutter body groups 100.

In the case of three clamping ends 310, two clamping ends 310 may function with the same cutter body assembly 100, and the remaining third clamping end 310 may function with another cutter body assembly 100.

In the case of four clamping ends 310, as shown in fig. 1, two clamping ends 310 are correspondingly abutted against one cutter body group 100, i.e., two clamping ends 310 are provided on each of the two cutter body groups 100. When there are a plurality of five, six, seven, etc., the arrangement form thereof can be arranged as described above.

Optionally, at least two abutting grooves 110 are respectively disposed on the sides of the two cutter body groups 100 away from each other, and the abutting grooves 110 correspond to the clamping ends 310 one to one, and are used for accommodating the clamping ends 310.

For example, as shown in fig. 1 and fig. 3, the two cutter body groups 100 may be provided with abutting grooves 110 respectively on the side walls away from each other, which receive the clamping ends 310, that is, the outer side walls of the two cutter body groups 100 may be provided with the abutting grooves 110, for example, in the form of blind holes, and when the clamping ends 310 abut against each other, the clamping ends may directly act on the groove bottoms of the abutting grooves 110, so as to apply force to the cutter body groups 100. Meanwhile, the clamping end 310 can be limited by the side wall of the abutting groove 110, so that the clamping member 300 is prevented from falling off accidentally due to the influence of external factors in use.

Alternatively, as shown in fig. 2, the clamping end 310 is a clamping tip 311, which can further improve the stability of the clamping tip 311 received in the abutting groove 100.

Alternatively, as shown in fig. 2, the clamping member 300 is a circular ring with a gap, the groove 120 is disposed on the same side of the two cutter body groups 100, the protrusion 121 is disposed on the sidewall of the groove 120 close to the abutting groove 110, and the protrusion 121 is configured to abut against the circular ring when the clamping end 310 of the circular ring is located in the abutting groove 110.

As an example, the clamping member 300 may be a circular ring with a notch, and meanwhile, a groove 120 is respectively disposed on the same side of the two cutter body groups 100, and a protrusion 121 is disposed on a side wall of the groove 120 close to the abutting groove 110, so that when the clamping end 310 of the circular ring is located in the abutting groove 110, the whole circular ring is limited inside the groove 120 by the protrusion 121, that is, the circular ring is limited by rotating around the abutting groove 110, thereby preventing the circular ring from being separated from the groove 120 by accidental rotation due to the influence of external factors during use, and further interfering or colliding with surrounding components, and effectively improving the stability of the circuit breaker during use. The groove 120 may be an arc-shaped groove.

Optionally, guide flaps 140 are further provided on the clamping sides of the two blade sets 100, respectively.

As shown in fig. 1, 3 and 4, the holding sides of the two blade sets 100, i.e., the inserting and extracting ends for inserting and extracting the fuse link, are respectively provided with a guiding flange 140, that is, one of the blade sets 100 is provided with an outward-folded edge (inclined at an appropriate angle in a direction away from the other blade set 100), and the other blade set 100 is also provided with an outward-folded edge inclined at an appropriate angle in a direction away from the previous blade set 100.

Optionally, the two oppositely disposed cutter body groups 100 are further respectively formed with mutually distant arches 130, so that a clamping cavity 131 is formed between the mutually distant arches 130.

As an example, as shown in fig. 1, 3 and 4, one arching portion 130 is disposed on one blade body group 100, another arching portion 130 is disposed on the other blade body group 100, and the arching portion 130 is disposed on the insertion and extraction path of the fuse link, because the arching directions of the two arching portions 130 are away from each other, that is, as shown in fig. 4, the arching portion 130 on the left blade body group 100 arches toward the left side in the direction away from the right blade body group 100, and the arching portion 130 on the right blade body group 100 arches toward the right side in the direction away from the left blade body group 100, a clamping cavity 131 can be formed between the two arching portions 130, so that the fuse link can be inserted more smoothly, and the problem that the fuse link is not inserted in place due to the deformation restriction of the blade body group 100 in the process of inserting the fuse link between the two blade body groups 100 and approaching the locking member 200 gradually is avoided. As shown in fig. 4, when the cutter body groups 100 are gradually transited from the inserting and extracting end (upper end in fig. 4) to the arching portion 130 (lower end in fig. 4), the transition may be performed in a manner of forming a certain angle with the fuse link inserting direction, so as to form a cavity with gradually increasing distance between the two cutter body groups 100. In other embodiments, the supply portion on one cutter body group 100 may include a plurality, such as two, three, etc.

Optionally, a through groove 150 penetrating in the direction of clamping the fuse link is further provided on the cutter body group 100.

For example, as shown in fig. 3, a through groove 150 may be further disposed on the cutter body group 100, an opening end of the through groove 150 is disposed at the inserting and extracting end of the cutter body group 100, and a penetrating direction of the through groove 150 is a direction intersecting with an inserting direction of the fuse link. Due to the arrangement of the through groove 150, the cutter body group 100 can form two independent bodies at the plugging end, so that the fuse link is independently clamped, the contact conduction and the clamping reliability are ensured, the material consumption during the manufacturing process can be reduced, and the manufacturing cost is further reduced.

The embodiment of the utility model provides an on the other hand provides a circuit breaker, including fuse-link, static contact 400 and above-mentioned any kind of slotting tool, fuse-link and static contact 400 are connected with the both ends of slotting tool respectively.

In an example, when the aforesaid blade is applied to a circuit breaker, that is, the blade is disposed in the circuit breaker, the static contact 400 can be connected through the blade and the fuse link, and when the blade is disposed, as shown in fig. 4, the fuse link and the static contact 400 can be respectively disposed at two ends of the blade (that is, the fuse link is inserted from the upper end of the blade body group 100 in fig. 4, and the static contact 400 is disposed at the lower end of the blade body group 100 in a connected manner), so that interference between the blade and the static contact can be avoided, and the reasonability of the disposition can be improved. The fuse link is clamped by the two cutter body groups 100 of the slotting tool under the action of the locking piece 200, so that the volume of the slotting tool can be effectively reduced, the occupied volume of the slotting tool in the circuit breaker is reduced, and the reasonability of the internal layout of the circuit breaker is improved.

Optionally, the two blade assemblies 100 of the slotting tool are respectively disposed at two sides of the static contact 400, and are configured to clamp the static contact 400 when the locking member 200 is connected to the two blade assemblies 100.

For example, the static contact 400 may also be disposed at a position between the two blade bodies 100, and the connection between the static contact 400 and the two blade bodies 100 may be formed in the following two manners (but not limited to):

in one illustration, two blade assemblies 100 are disposed at both sides of one end portion of the stationary contact 400, and are clamped and fixed by the two blade assemblies 100 in the process of connecting and locking the two blade assemblies 100 by the locking member 200.

In another schematic illustration, as shown in fig. 4, two blade sets 100 are disposed on two sides of an end portion of the static contact 400, and the static contact 400 is connected to the two blade sets 100 through the locking member 200, for example, a bolt sequentially passes through the left blade set 100, the static contact 400, and the right blade set 100 to complete locking connection, so that the three blade sets form a fixed connection relationship.

The mode of being connected with the static contact 400 can make two cutter body groups 100 and the static contact 400 have enough contact area, thereby ensuring the reliability of being connected with the static contact 400, and meanwhile, the mode of acting on the static contact 400 through the two cutter body groups 100 to fix the static contact 400 when the two cutter body groups 100 are locked through the locking part 200 can also avoid the defects of larger bottom area and more materials caused by the opposite inward turning structure of the existing slotting tool.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The circuit breaker is characterized by comprising a fuse link, a fixed contact and a slotting tool, wherein the fuse link and the fixed contact are respectively connected with two ends of the slotting tool, the slotting tool comprises a locking part and two cutter body groups, and the locking part is connected with the two cutter body groups so that the two cutter body groups are oppositely arranged to clamp the fuse link.

2. The disconnect switch of claim 1, wherein two of said blade assemblies are connected at one end to said locking member and at the other end are deformable to retain said fuse link.

3. The circuit breaker of claim 1 or 2, further comprising a clamping member, wherein the clamping member includes at least two clamping ends, and wherein the at least two clamping ends respectively act on the two blade bodies to provide a clamping force on the two blade bodies towards each other.

4. The circuit breaker of claim 3, wherein at least two abutting grooves are respectively formed on the sides of the two blade bodies away from each other, and the abutting grooves correspond to the clamping ends one by one for accommodating the clamping ends.

5. The circuit breaker of claim 4, wherein the clamping end is a clamping tip.

6. The circuit breaker according to claim 4, wherein said clamping member is a ring having a notch, a groove is provided on the same side of both said cutter body groups, and a protrusion for abutting against said ring when the clamping end of said ring is located in said abutting groove is provided on a side wall of said groove close to said abutting groove.

7. The circuit breaker of claim 1, wherein guide flanges are further provided at the clamping sides of the two cutter body groups, respectively.

8. The circuit breaker of claim 1, wherein two oppositely disposed knife bodies are further formed with respective domes spaced apart from each other to form a pinch chamber between the domes spaced apart from each other.

9. The circuit breaker of claim 1, wherein the two blade sets of the slotting tool are respectively disposed at two sides of the stationary contact for clamping the stationary contact when the locking member connects the two blade sets.

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