CN219163291U

CN219163291U - Circuit breaker and release mounting structure thereof

Info

Publication number: CN219163291U
Application number: CN202222399781.9U
Authority: CN
Inventors: 赵方方; 韩畅; 宋志文
Original assignee: Delixi Electric Co Ltd
Current assignee: Delixi Electric Co Ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2023-06-09
Anticipated expiration: 2032-09-09

Abstract

The utility model discloses a release mounting structure of a circuit breaker and the circuit breaker, which are used for mounting the release on a base, and comprise the following steps: the release device comprises a mounting base and a release device, wherein the release device is used for being mounted on the mounting base; the first arc isolation piece is integrally connected with the first end of the installation base, the first end of the installation base is detachably connected with the base through the first arc isolation piece, and when the first arc isolation piece is connected with the base, the arc extinction isolation circuit breaker of the first arc isolation plate is arranged between the phase A and the phase B or between the phase A and the phase N. Through processing the installation base and first arc piece as an organic whole structure, when installing the release, only need install the trip on the installation base, with first arc piece and base connection that separates again can. The installation simultaneously completes the connection of the installation base and the connection of the first arc-isolating piece between the A phase and the B phase or between the A phase and the N phase, namely, the installation process of the installation base and the first arc-isolating piece is reduced in the assembly process, the installation steps are simplified, and the production efficiency is improved.

Description

Circuit breaker and release mounting structure thereof

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to a release mounting structure of a circuit breaker and the circuit breaker.

Background

A circuit breaker refers to a switching device capable of closing, carrying and opening a current under normal circuit conditions and closing, carrying and opening a current under abnormal circuit conditions within a prescribed time.

A trip device refers to a device that is mechanically coupled to a circuit breaker to release a retention mechanism and automatically open the circuit breaker. The zero-sequence current transformer has the function that when the line has electric leakage or the human body gets an electric shock, the vector sum of the currents passing through the zero-sequence current transformer is not equal to zero, the voltage is generated at the two sides of the secondary coil of the transformer and amplified by the integrated circuit, and when the setting value is reached, the power supply is cut off within 0.1 second through the electric leakage release, so that the electric shock and electric leakage protection functions are realized.

Current circuit breakers include a housing and a trip unit assembly disposed within the housing. Wherein, the release subassembly is installed on the base of casing through the installation base. In the installation, arc barriers for arc isolation need to be installed between the N phase and the A phase and between the A phase and the B phase. The steps of the installation process are complicated, and the production efficiency is not improved.

Therefore, how to provide a release mounting structure of a circuit breaker, so as to simplify the mounting steps and improve the production efficiency is a problem to be solved by those skilled in the art.

Disclosure of Invention

In view of the above, the present utility model provides a release mounting structure of a circuit breaker, so as to simplify the mounting steps and improve the production efficiency. In addition, the utility model also provides a circuit breaker with the release mounting structure.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a trip unit mounting structure of a circuit breaker for mounting a trip unit on a base, comprising:

the release is used for being mounted on the mounting base;

the first arc isolation piece is integrally connected with the first end of the installation base, the first end of the installation base is detachably connected with the base through the first arc isolation piece, and when the first arc isolation piece is connected with the base, the first arc isolation piece is used for extinguishing arc to isolate between A phase and B phase or between A phase and N phase of the circuit breaker.

Preferably, in the release mounting structure of the circuit breaker, the release mounting structure further comprises a second arc isolation member, the second arc isolation member is integrally connected with the second end of the mounting base, the second end of the mounting base is detachably connected with the base through the second arc isolation member, and the first arc isolation member and the second arc isolation member are respectively used for arc extinguishing and isolating between the A phase and the B phase and between the A phase and the N phase of the circuit breaker.

Preferably, in the release mounting structure of a circuit breaker, the first arc-isolating member and the second arc-isolating member are arranged in parallel and opposite to each other.

Preferably, in the release mounting structure of a circuit breaker, the second arc isolation member is detachably clamped with the base.

Preferably, in the release mounting structure of a circuit breaker, the second arc isolation member includes: the second arc-shaped plate is integrally connected with the mounting base; the second clamping protrusions are positioned on two sides of the second arc-shaped plate and protrude out of the second arc-shaped plate;

the base includes: the base body and offer on the base body and with second flash barrier complex second mounting groove, the lateral wall of second mounting groove have with the protruding adaptation of second joint groove.

Preferably, in the release mounting structure of a circuit breaker, the release mounting structure further comprises a clamping plate, the clamping plate is integrally connected with the second end of the mounting base, and the second end of the mounting base is detachably connected with the base through the clamping plate.

Preferably, in the release mounting structure of a circuit breaker, the base includes: the base body and offer on the base body and with joint board joint complex assembly groove.

Preferably, in the release mounting structure of a circuit breaker, the first arc isolating member is detachably clamped with the base.

Preferably, in the release mounting structure of a circuit breaker, the first arc isolation member includes: the first arc-shaped plate is integrally connected with the mounting base; the first clamping protrusions are positioned on two sides of the first arc-shaped plate and protrude out of the first arc-shaped plate;

the base includes: the base body and offer on the base body and with first flash barrier complex first mounting groove, the lateral wall of first mounting groove have with the first joint protruding adaptation of first joint groove.

Preferably, in the release mounting structure of a circuit breaker, a side of the first arc-stop plate, which is close to the base body, is an assembling surface, and the assembling surface is an arc-shaped surface protruding towards a direction away from the base body;

the bottom of the first mounting groove is a cambered surface protruding away from the first flash barrier, and the assembly surface is matched with the cambered surface to form a through hole for the rotating shaft to pass through.

A circuit breaker comprising a release, a base, a face cover and a release mounting structure for mounting the release on the base, and the release mounting structure is any one of the release mounting structures described above.

Preferably, in the circuit breaker, the surface cover abuts against the upper surface of the first arc isolation member to limit the first arc isolation member to the base;

the surface cover abuts against the upper surface of the second arc isolation piece to enable the second arc isolation piece to be limited on the base, or abuts against the upper surface of the clamping plate to enable the clamping plate to be limited on the base.

The utility model provides a release mounting structure of a circuit breaker, which is characterized in that a mounting base and a first arc-isolating piece are processed into an integral structure, so that when the release is mounted, only the release is required to be mounted on the mounting base, and then the first arc-isolating piece is connected with a base. The installation process simultaneously completes the connection of the installation base and the connection of the first arc-isolating piece between the A phase and the B phase or between the A phase and the N phase, namely, in the assembly process, the installation process of the installation base and the first arc-isolating piece is reduced, thereby simplifying the installation steps and improving the production efficiency.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a release disclosed in an embodiment of the present utility model;

FIG. 2 is a schematic view of a first configuration of a mounting base disclosed in an embodiment of the present utility model;

FIG. 3 is an assembly view of the release disclosed in the embodiments of the present utility model mounted on a first mounting base;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a partial view of a portion of a base corresponding to a first mounting base disclosed in an embodiment of the present utility model;

FIG. 6 is a schematic view showing an assembly process of the first mounting base disclosed in the embodiment of the present utility model on the base;

FIG. 7 is a schematic view of a second construction of a mounting base disclosed in an embodiment of the present utility model;

FIG. 8 is an assembly view of a release disclosed in an embodiment of the present utility model mounted on a second mounting base;

FIG. 9 is a top view of FIG. 8;

FIG. 10 is a partial view of a portion of a base disclosed in an embodiment of the present utility model corresponding to a second type of mounting base;

FIG. 11 is a schematic view showing an assembly process of a second type of mounting base disclosed in the embodiment of the present utility model on a base;

FIG. 12 is an assembly schematic of a second mounting base disclosed in an embodiment of the present utility model assembled on a base;

fig. 13 is a schematic structural view of a circuit breaker disclosed in an embodiment of the present utility model;

wherein 11 is a first arc isolation piece, 110 is a first arc isolation plate, 111 is a first clamping protrusion, 112 is an assembly surface, and 113 is the upper surface of the first arc isolation piece;

12 is a second arc isolation piece, 120 is a second arc isolation plate, 121 is a second clamping protrusion, 122 is a matching surface, and 123 is the upper surface of the second arc isolation piece;

13 is a clamping plate, 131 is a rear positioning surface, 132 is a clamping plate upper surface, 133 is a first side positioning surface, and 134 is a second side positioning surface;

2 is a base, 3 is a face cover, 4 is a release, and 5 is a mounting base;

20 is a base body, 21 is a first mounting groove, 211 is a first clamping groove, and 212 is a first clamping groove bottom;

22 is a second mounting groove, 221 is a second clamping groove, 222 is a second clamping groove bottom;

the assembly groove 23 is a first limiting surface 231, the bottom limiting surface 232 is a bottom limiting surface 233, and the second limiting surface.

Detailed Description

The utility model discloses a release mounting structure of a circuit breaker, which is used for simplifying the mounting steps and improving the production efficiency. In addition, the utility model also discloses a circuit breaker with the release mounting structure.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The terms "first" and "second" are used below for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

As shown in fig. 1 to 12, the present utility model discloses a release mounting structure of a circuit breaker, for mounting a release 4 on a base 2, specifically comprising: a mounting base 5 and a first arc barrier 11. The installation base 5 is used as an installation base of the release 4, and the structure and the size of the installation base can be set according to different requirements, so long as the installation of the release 4 can be satisfied, and the connection mode of the installation base 5 and the release 4 can be preferably a detachable connection mode. The first arc isolating piece 11 is integrally connected with the first end of the installation base 5, and during installation, the installation base 5 is detachably connected with the base 2 through the first arc isolating piece 11, namely, the first arc isolating piece 11 is detachably connected with the base 2, and when the first arc isolating piece 11 is connected with the base 2, the first arc isolating piece 11 is used for extinguishing arc to isolate between the A phase and the B phase or between the A phase and the N phase of the circuit breaker.

In view of the above connection relationship, in the implementation of the present application, the installation base 5 and the first arc-isolating member 11 are machined into an integral structure, so that when the release 4 is installed, only the release 4 needs to be installed on the installation base 5, and then the first arc-isolating member 11 is connected with the base 2. The above-mentioned installation process has accomplished the connection of installation base 5 and base 2 simultaneously and has accomplished the connection of the first arc piece 11 that separates between A and B looks or between A and N looks, and in this assembly process promptly, has reduced the installation process of installation base 5 and first arc piece 11 to simplified the installation step, improved production efficiency.

The shape and size of the mounting base 5 and the first arc-isolating member 11 may be set according to different needs, and are not limited herein.

The description is made in connection with an actual circuit breaker, and the circuit breaker is a three-phase circuit breaker, specifically, a 3P circuit breaker or a 4P circuit breaker. In the case of a 3P circuit breaker, the first arc baffle 11 may be used to isolate phase a from phase B; in the case of a 4P circuit breaker, the first arc plate 11 may be used to isolate the a phase from the B phase or the a phase from the N phase.

Phases a and B, and C not referred to herein are three phases (fire) lines of the power supply, respectively, and phase N is a neutral line, i.e., a zero line.

In one embodiment, the trip unit mounting structure of the circuit breaker further includes a second arc splitter 12, as shown in fig. 2-6. Specifically, the second arc-isolating member 12 is integrally connected with the second end of the mounting base 2, and when in mounting, the second end of the mounting base 5 is detachably connected with the base 2 through the second arc-isolating member 12. When the installation base 5 is assembled with the base 2, the first end of the installation base 5 is detachably connected with the base 2 through the first arc-isolating piece 11, and the second end of the installation base 5 is detachably connected with the base 2 through the second arc-isolating piece 12, so that the detachable connection of the installation base 5 and the base 2 is realized.

After installation, the first arc-isolating member 11 and the second arc-isolating member 12 arc-extinguish and isolate the circuit breaker between the a phase and the B phase and between the a phase and the N phase, respectively. For example, the first arc splitter 11 separates phases a and B, and the second arc splitter 12 separates phases a and N. At this time, the corresponding three-phase circuit breaker is a 4P circuit breaker.

In practice, the first arc-isolating member 11 and the second arc-isolating member 12 are arranged opposite and in parallel to be suitable for isolating arc extinction between the B-phase, the a-phase and the N-phase provided on the existing base 2.

The distance between the first arc-isolating member 11 and the second arc-isolating member 12 and the arrangement relationship can also be set according to different circuit breakers.

To facilitate installation and reduce the use of screws, the second arc-isolating member 12 may be removably engaged with the base 2 in a particular application. The clamping mode is adopted, the structure is simple, and the assembly is easy. In practice, bonding or other spacing means of attachment may be employed.

As shown in fig. 2-4, the second arc-isolating member 12 includes a second arc-isolating plate 120 integrally connected with the mounting base 5, and second clamping protrusions 121 located on two sides of the second arc-isolating plate 120 and protruding out of the second arc-isolating plate 120. Specifically, the second clamping protrusion 121 protrudes toward both the x-axis direction and the y-axis direction of the second arc-shaped plate 120, and thus, the second clamping protrusion 121 is connected to the second arc-shaped plate 120 as an L-shaped member.

Two second clamping protrusions 121 are symmetrically arranged on two sides of the second arc-shaped plate 120. When one of the second catching protrusions 121 protrudes positively along the y-axis, the other second catching protrusion 121 protrudes negatively along the y-axis. These second engaging projections 121 extend in the z-axis direction, and the specific depth thereof needs to be set according to the requirement when the second arc separating member 12 is assembled with the base 2.

After installation, the second arc-isolating piece 12 and the first arc-isolating piece 11 are positioned on two sides of the installation base 5 together with the release 4.

It should be noted that, in this embodiment, the x-axis direction is a direction from the first arc isolation member 11 to the second arc isolation member 12 (a right-to-left direction as shown in fig. 3), and xyz forms a space coordinate system.

Correspondingly, the base 2 includes a base body 20 and a second mounting groove 22, and specifically, the second mounting groove 22 is formed on the base body 20, and in addition, a second clamping groove 221 adapted to the second clamping protrusion 121 is disposed on a side wall of the second mounting groove 22, as shown in fig. 5 and 6.

The base body 20 is a conventional circuit breaker, and the specific structure thereof is not limited herein.

The base body 20 in this embodiment is provided with a second mounting groove 22, and the shape and size of the second mounting groove 22 need to be matched with the second arc-shaped plate 120, i.e. a notch corresponding to the second arc-shaped plate 120 is formed from top to bottom on the mounting plate (not labeled in the figure) of the base body 20. Specifically, the side edge of the notch of the base body 20 is the side wall of the second mounting groove 22.

In practical applications, the shape of the second arc-stop 120 includes, but is not limited to, a rectangular plate or a circular arc plate. Accordingly, the second mounting groove 22 may be a corresponding rectangular plate or a circular arc plate. When the second arc-shaped plate 120 is assembled to the second mounting groove 22, the second arc-shaped plate 120 can be ensured to be limited in the second mounting groove 22.

Fig. 2, 3, 5 and 6 show that the side of the second arc-shaped plate 120, which is close to the base body 20, is a mating surface 122 protruding in a direction away from the base body 20, the mating surface 122 is an arc-shaped surface, and correspondingly, the bottom of the second mounting groove 22 is an arc surface protruding away from the second arc-shaped plate 120, and the mating surface 122 and the arc surface are mated to form a through hole for the rotation shaft to pass through. It will be appreciated by those skilled in the art that the dimensions for the two arcuate surfaces may be set according to the dimensions of the shaft.

In order to ensure the engagement between the second engaging protrusion 121 and the second mounting groove 22, a second engaging groove 221 capable of engaging with the second engaging protrusion 121 needs to be formed in the sidewall of the second mounting groove 22. As shown in fig. 5, a second clamping groove 221 with an L-shaped cross section is formed in one side wall of the second mounting groove 22, and the size of the second clamping groove is just in clearance fit or interference fit with the second clamping protrusion 121.

The second clamping protrusions 121 are symmetrically arranged in combination, and therefore, the second clamping grooves 221 are provided on both sidewalls of the second mounting groove 22 and are symmetrically arranged.

As shown in fig. 6, when the mounting base 5 is assembled with the base 2, the second partition 12 is opposed to the second mounting groove 22, the second engaging protrusion 121 is aligned with the second engaging groove 221, and then the second partition 12 is inserted into the second mounting groove 22, and when the second engaging protrusion 121 of the second arc-shaped barrier 120 abuts against the second engaging groove bottom 222, the mounting is completed. The limitation of the second separator 12 in the x-axis and y-axis directions can be realized by the limitation of the second clamping groove 221.

In another practical embodiment, for example, in a circuit breaker in which an arc-separating member is disposed only between the a phase and the B phase, the release mounting structure of the circuit breaker may further include a clamping plate 13, as shown in fig. 7 to 9 and fig. 11 and 12, and the clamping plate 13 is integrally connected to the second end of the mounting base 5, and the second end of the mounting base 5 is detachably connected to the base 2 through the clamping plate 13 during mounting.

The shape of the clamping plate 13 is a single structure, such as a rectangular plate or an oval plate. And a single structure is selected, so that the structure is simple and the processing is easy.

It should be noted that, the second end of the mounting base 5 may be selectively connected to the second arc-isolating member 12 or the clamping plate 13 according to the type of the circuit breaker and the arc extinguishing requirement.

Referring to fig. 10 to 12, the base 2 disclosed in the present embodiment includes a base body 20 and an assembly groove 23 opened on the base body 20 and engaged with the card plate 13.

It is desirable for the shape of the fitting groove 23 to be adapted to the shape of the card 13, and the fitting groove 23 can be sized to be either a clearance fit or an interference fit with the card 13.

When the clamping plate 13 is a rectangular plate, the corresponding fitting groove 23 is a rectangular groove. When in connection, the clamping plate 13 is placed in the assembly groove 23, and the rear positioning surface 131 of the clamping plate 13 is ensured to be positioned on the bottom surface limiting surface 232 of the assembly groove 23 and can be abutted against the end wall of the assembly groove 23; the first side locating surface 133 of the clamping plate 13 abuts against the first limiting surface 231 of the assembly groove 23; the second side edge positioning surface 134 of the clamping plate 13 is propped against the second limit surface 233 of the assembly groove 23; the limiting installation of the clamping plate 13 and the assembly groove 23 is realized in this way.

The adoption in this scheme sets up joint board 13 and installation base 5 as an organic whole structure to adopt the mode of joint with joint board 13 and base 2, be favorable to simplifying the installation step of circuit breaker, improve machining efficiency.

As shown in fig. 1-13, the first arc-isolating member 11 is detachably engaged with the base 2 in all the above embodiments. The clamping connection is convenient, the operation is easy, the use of screws can be reduced, and the assembly efficiency is improved. In practice, bonding may also be used to achieve the connection.

Specifically, the first arc-shielding member 11 includes a first arc-shielding plate 110 and a first engaging protrusion 111. During processing, the first arc-shaped plate 110 and the mounting base 5 are integrally connected and formed, and the first clamping protrusions 111 are located at two sides of the first arc-shaped plate 110 and protrude from the surface of the first arc-shaped plate 110, preferably, the first clamping protrusions 111 and the first arc-shaped plate 110 are also integrally formed.

The first clamping protrusion 111 protrudes in both the x-axis direction and the y-axis direction of the first arc-shaped plate 110, and thus, the first clamping protrusion 111 is connected to the first arc-shaped plate 110 as an L-shaped member.

Two first engaging protrusions 111 are provided and symmetrically disposed on both sides of the first arc-shaped plate 110. The specific connection and arrangement are the same as the second snap-in protrusions 121 described above. These first engaging projections 111 extend in the z-axis direction, and the specific depth thereof needs to be set according to the requirement when the first arc separating member 110 is assembled with the base 2.

The first arc-shaped plate 110 and the second arc-shaped plate 120 are symmetrically arranged with respect to the mounting base 5.

Here, the second arc-shaped plate 120 is first shown in the first arc-shaped plate 110 and the second arc-shaped plate 120, and the second clamping protrusion 121 is first shown in the first clamping protrusion 111 and the second clamping protrusion 121, however, there is no special meaning for the order of the parts, that is, the second arc-shaped member 12 corresponds to the second arc-shaped plate 120 and the second clamping protrusion 121, and the first arc-shaped member 11 corresponds to the first arc-shaped plate 110 and the first clamping protrusion 111.

Of course, the shapes of the first arc-shielding plate 110 and the second arc-shielding plate 120 corresponding to the first arc-shielding member 11 and the second arc-shielding member 12 may be preferably the same, so as to ensure that the first arc-shielding plate 110 and the second arc-shielding plate 120 can be mounted in place at the same time.

The base 2 is shown in fig. 5, 6 and 10-12 to include a base body 20 and a first mounting groove 21 provided on the base body 20. Specifically, the first mounting groove 21 is adapted to fit the first arc-shaped plate 110, that is, the first mounting groove 21 is matched to the first arc-shaped plate 110 in shape and size. When the first arc-shaped plate 110 is mounted in the first mounting groove 21, the first mounting groove 21 can limit the first arc-shaped plate 110, and preferably, the first arc-shaped plate 110 and the first mounting groove 21 can be in interference fit or clearance fit.

The side wall of the first mounting groove 21 has a first clamping groove 211 adapted to the first clamping protrusion 111. During assembly, the first clamping protrusions 111 are in one-to-one correspondence with the first clamping grooves 211, and then the first clamping protrusions 111 are inserted into the first clamping grooves 211 through the guiding of the first clamping grooves 211, so that the first arc isolation piece 11 and the base 2 are mounted.

In practical application, the first arc-shaped plate 110 is a rectangular plate, and correspondingly, a corresponding rectangular notch is formed on the substrate body 20, the side wall of the rectangular notch is the side wall of the first mounting groove 21, and the side walls of two opposite first mounting grooves 21 are respectively provided with a first clamping groove 211, and specifically, the first clamping grooves 211 are all L-shaped grooves adapted to the first clamping protrusions 111.

In the mounting process, when the first clamping protrusion 111 of the first arc-shaped plate 110 is propped against the bottom 212 of the first clamping groove, the mounting is completed.

As will be appreciated by those skilled in the art, the shapes of the first clamping projection 111 and the first clamping groove 211, and the second clamping projection 121 and the second clamping groove 221 are only required to be capable of adapting and realizing a limited connection, and therefore, the present application is not limited to the above-mentioned shapes.

Fig. 2, 3, 5-8 and 10-12 show that the side of the first arc-shaped plate 110 near the base body 20 is an assembling surface 112 protruding in a direction away from the base body 20, the assembling surface 112 is an arc-shaped surface, correspondingly, the bottom of the first mounting groove 21 is an arc surface protruding away from the first arc-shaped plate 110, and the assembling surface 112 and the arc surface cooperate to form a through hole for passing the rotating shaft. It will be appreciated by those skilled in the art that the dimensions for the two arcuate surfaces may be set according to the dimensions of the shaft.

In addition, as shown in fig. 13 and referring to fig. 1 to 12, the present utility model also discloses a circuit breaker including a release 4, a base 2, a cover 3, and a release mounting structure for mounting the release 4 on the base 2, wherein the release mounting structure is the release mounting structure disclosed in the above embodiment, and thus, the circuit breaker having the release mounting structure also has all the technical effects described above.

In a specific application, the release 4 is mounted on the mounting base 5, and the mounting base 5 is detachably clamped on the base 2, so as to ensure the stability of the position of the release 4 after connection and prevent the release 4 from shaking in the y direction, preferably, the limit of the mounting base 5 in the y direction can be realized through the cooperation of the face cover 3 and the base 2.

Specifically, during assembly, the surface cover 3 abuts against the first arc-isolating piece upper surface 113 of the first arc-isolating piece 11, and meanwhile, the surface cover 3 can also abut against the second arc-isolating piece upper surface 123 of the second arc-isolating piece 12 or the clamping plate upper surface 132 of the clamping plate 13, so that the two ends of the mounting base 5 are limited simultaneously, and the fixing of the position of the mounting base 5 is ensured.

The cooperation of face lid 3 and base 2 is adopted, realizes that installation base 5 is spacing in the y direction, can not need additionally to set up the connecting piece that is fixed in the y direction to installation base 5, only realizes fixed connection through the mutual spacing of structure self, has effectively reduced the use of screw, has reduced the installation step, has improved production efficiency.

During assembly, the supporting plate of the release 4 in the above embodiment has a first threaded hole 41 and a second threaded hole 42, as shown in fig. 1; accordingly, the mounting base 5 has a first coupling hole 51 corresponding to the first screw hole 41 and a second coupling hole 52 corresponding to the second screw hole 42, as shown in fig. 2 and 7. When the release is mounted, the first connecting hole 51 and the first threaded hole 41 are connected by screw threads, and the second connecting hole 52 and the second threaded hole 42 are connected by another screw thread, so that the release 4 and the mounting base 5 are connected.

In practical applications, the connection method of the trip unit 4 and the mounting base 5 is not limited to the above, and in other embodiments, clamping and the like may be adopted.

As used in the specification and in the claims, the terms "a," "an," "the," and/or "the" are not specific to a singular, but may include a plurality, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus. The inclusion of an element defined by the phrase "comprising one … …" does not exclude the presence of additional identical elements in a process, method, article, or apparatus that comprises an element.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A release mounting structure for a circuit breaker, for mounting a release on a base, comprising:

the release is used for being mounted on the mounting base;

2. The release mounting structure of a circuit breaker of claim 1, further comprising a second arc-isolating member integrally connected with the second end of the mounting base, the second end of the mounting base being detachably connected with the base through the second arc-isolating member, and the first arc-isolating member and the second arc-isolating member arc-extinguishing and isolating between a phase a and B and between a phase a and N of the circuit breaker, respectively.

3. The release mounting structure of a circuit breaker of claim 2, wherein the first arc blocking member and the second arc blocking member are arranged in parallel and opposite.

4. The release mounting structure of a circuit breaker of claim 2, wherein the second arc blocking member is detachably engaged with the base.

5. The trip unit mounting structure of a circuit breaker of claim 2, wherein said second arc blocking member comprises: the second arc-shaped plate is integrally connected with the mounting base; the second clamping protrusions are positioned on two sides of the second arc-shaped plate and protrude out of the second arc-shaped plate;

6. The release mounting structure of a circuit breaker of claim 1, further comprising a clamping plate integrally connected to the second end of the mounting base, the second end of the mounting base being detachably connected to the base via the clamping plate.

7. The trip unit mounting structure of a circuit breaker of claim 6, wherein the base comprises: the base body and offer on the base body and with joint board joint complex assembly groove.

8. The release mounting structure of a circuit breaker of any one of claims 1-7, wherein the first arc blocking member is detachably engaged with the base.

9. The release mounting structure of a circuit breaker of claim 8, wherein the first arc splitter comprises: the first arc-shaped plate is integrally connected with the mounting base; the first clamping protrusions are positioned on two sides of the first arc-shaped plate and protrude out of the first arc-shaped plate;

10. The release mounting structure of a circuit breaker according to claim 9, wherein a side of the first arc shield adjacent to the base body is a mounting surface, and the mounting surface is an arc surface protruding in a direction away from the base body;

11. A circuit breaker comprising a release, a base, a face cover, and a release mounting structure for mounting the release on the base, wherein the release mounting structure is the release mounting structure of any one of claims 1-10.

12. The circuit breaker of claim 11, wherein the cover abuts an upper surface of the first arc splitter such that the first arc splitter is confined to the base;