CN220553399U

CN220553399U - Trip gear mounting structure of measurement circuit breaker

Info

Publication number: CN220553399U
Application number: CN202322285449.4U
Authority: CN
Inventors: 吴起军; 蒋益杰; 南鹏杰; 薛昌鸿; 郑木易
Original assignee: Ruirui Electric Zhejiang Co ltd
Current assignee: Ruirui Electric Zhejiang Co ltd
Priority date: 2023-08-22
Filing date: 2023-08-22
Publication date: 2024-03-01
Anticipated expiration: 2033-08-22

Abstract

The utility model discloses a tripping device mounting structure of a measuring circuit breaker, which comprises a tripping device body and a handle lever, wherein the tripping device body is mounted on a shell, the tripping device body comprises a tripping push rod and a spring which are connected, a slope structure is arranged on a mounting part in the shell, the tripping device is mounted at the slope structure at a certain inclination angle, the mounting part is a mounting shell frame of a transformer module, thus the integrated assembly of the transformer module and the tripping device is realized, the tripping push rod designed at the inclination angle can just meet the impact contact of the handle lever according to the arc movement of the handle lever, the resistance of the tripping push rod in the energy storage movement process is reduced, the situation that the tripping device is damaged due to the fact that the tripping push rod is broken due to excessive pressure is avoided, the mounting ensures that the energy storage process of the tripping device is more labor-saving and convenient, and the service performance of products is improved.

Description

Trip gear mounting structure of measurement circuit breaker

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to a tripping device mounting structure for measuring a circuit breaker.

Background

The existing measuring circuit breaker with electric energy metering is characterized in that intelligent control and electric energy metering functions are added on the basis of a three-phase three-wire electronic circuit breaker, so that multiple parameters such as current, voltage and temperature can be collected to realize the protection function and the metering function of the circuit breaker. The measuring circuit breaker uses the electronic tripping device to drive the traction rod of the circuit breaker to act, and then the traction rod triggers the operating mechanism to trip so as to realize the tripping of the circuit breaker, thereby playing a role in protecting a circuit.

The current electronic tripping device is generally horizontally arranged on a base or a controller assembly module, and is provided with a tripping push rod for pushing a traction rod to realize tripping action and an energy storage spring connected with the tripping push rod, a lever matched with the tripping push rod is arranged on a handle, and the handle pushes the tripping push rod to move to realize an energy storage process through the lever when the handle rotates in a closing manner, so that energy storage preparation of pushing force is provided for triggering the tripping action of the traction rod. However, the existing electronic trip device still has the following problems in actual use: because the lever moves along the handle in an arc manner, and the tripping device and the tripping push rod are horizontally arranged, downward component force action can be generated when the tripping push rod is obliquely pushed by the lever, the resistance force received in the energy storage process is larger, and the tripping push rod is used as a plastic part and is easily pressed excessively to break, so that the service life of the tripping device is shortened or even damaged.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is to overcome the problems that the tripping push rod is easy to break due to excessive pressure of the tripping push rod and damage the tripping device caused by large resistance generated in the process of energy storage by obliquely pushing the tripping push rod by the lever in the prior art, so that the utility model provides the tripping device mounting structure of the measuring circuit breaker, which reduces the resistance of the tripping push rod in the process of energy storage, ensures that the energy storage process of the tripping device is more labor-saving and convenient, and improves the service performance of products.

In order to solve the technical problems, the utility model provides a tripping device mounting structure of a measuring circuit breaker, which comprises a shell, a tripping device body and a handle lever, wherein the tripping device body and the handle lever are arranged on the shell; the trip device comprises a trip device body, and is characterized in that an installation part suitable for being connected with the trip device body is arranged in the shell, a slope structure is arranged on the installation part, the trip device body is installed at the slope structure at a certain inclination angle, and the trip push rod extends obliquely upwards and is located on a rotating path of a handle lever.

As a preferable scheme, the release body is provided with a fixing bracket which is attached and installed on the slope structure, two mounting protrusions are arranged on two sides of a bottom plate of the fixing bracket, and the release body is fixed on the mounting portion after penetrating through the mounting protrusions through screws.

As a preferable scheme, the tripping push rod comprises a straight rod part connected with the spring and a push rod part extended and tilted from one end of the straight rod part, and a first boss matched and contacted with the handle lever is formed at the top end of the push rod part.

As a preferable scheme, a second boss opposite to the traction rod is formed on one side surface of the push rod part, and a screw hole structure suitable for installing an adjusting screw is formed on the second boss.

As a preferable scheme, a transformer module composed of a plurality of transformer units is installed in the shell, the installation part is an installation shell frame of the transformer module, and the slope structure is formed at the top of the installation shell frame.

As a preferable scheme, a buffer cushion block is arranged between the fixed support of the release body and the slope structure.

As a preferable scheme, a controller module positioned on the upper side of the mutual inductor module is further installed in the shell, an isolation cavity surrounding the release body is formed between the controller module and the mutual inductor module, and an opening suitable for the release push rod to extend out is formed in the front side of the isolation cavity.

As a preferred scheme, the release body comprises a release coil assembly and a release push rod which are arranged on the fixed support, and a toggle rod which is rotationally connected between the release coil assembly and the release push rod, wherein the release push rod and the toggle rod form limit fit under an energy storage state, and the release coil assembly is triggered to drive the toggle rod to rotate through a push rod so as to release the limit fit between the toggle rod and the release push rod.

Compared with the prior art, the technical scheme of the utility model has the following advantages:

1. the utility model provides a tripping device installation structure of a measuring circuit breaker, wherein a slope structure is arranged at an installation part position in a shell, a tripping device is installed at the slope structure in a certain inclined angle, and a tripping push rod of the tripping device is obliquely extended and positioned on a rotating path of a handle lever, and the tripping push rod moves along an arc along the handle according to the handle lever.

2. In the installation structure of the tripping device of the measuring circuit breaker, the installation shell frame of the transformer module is the installation part, namely the slope structure is formed at the top of the installation shell frame, and the tripping device is fixed at the slope structure at the top of the installation shell frame in a screw installation mode, so that the assembly of the transformer module and the tripping device is realized, the modularized installation is realized, the transformer module and the tripping device can be synchronously installed on the shell as a whole, the installation structure is simple, the installation efficiency is improved, and the production cost is reduced.

3. According to the tripping device mounting structure of the measuring circuit breaker, the tripping device is mounted on the top of the transformer module, the controller module is mounted on the upper side of the transformer module, the tripping push rod is arranged in a penetrating manner by forming the isolating cavity surrounding the tripping device body between the controller module and the transformer module and the front side of the isolating cavity in an opening position matching manner, the tripping device is mounted and protected between the controller module and the transformer module by the isolating cavity, so that the tripping device is prevented from being corroded and damaged by free gas carrying metal particles, the protection effect is good, and the service life of the tripping device is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 is a schematic structural view of a trip device mounting structure of a measuring circuit breaker according to the present utility model;

FIG. 2 is a schematic cross-sectional view of a trip unit mounting structure of a measuring circuit breaker according to the present utility model;

FIG. 3 is a schematic view of the structure of the trip device of FIG. 1 after the controller module is concealed;

FIG. 4 is a schematic view of a ramp structure according to the present utility model;

FIG. 5 is a schematic diagram of a trip device according to the present utility model;

reference numerals illustrate: 1. a trip body; 11. a trip push rod; 111. a straight rod part; 112. a push rod part; 113. a first boss; 114. a second boss; 12. a spring; 13. a fixed bracket; 14. a screw; 15. a trip coil assembly; 16. a toggle rod; 2. a housing; 3. a ramp structure; 31. buffering cushion blocks; 4. a transformer module; 41. installing a shell frame; 5. a controller module; 6. an isolation chamber; 7. a handle lever; 8. a traction rod.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. 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.

In the description of the present utility model, it should be noted that the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1

The embodiment provides a tripping device mounting structure of a measuring circuit breaker as shown in fig. 1-5, which comprises a shell 2, a tripping device body 1 and a handle lever 7, wherein the tripping device body 1 is mounted on the shell 2, the tripping device body 1 comprises a tripping push rod 11 and a spring 12 which are arranged in a connecting way, the handle lever 7 moves along with a handle of the circuit breaker, and the tripping push rod 11 is pushed to press the spring 12 to store energy when the tripping device rotates in a closing way; the trip device is characterized in that an installation part suitable for being connected with the trip device body 1 is arranged in the shell 2, a slope structure 3 is arranged on the installation part, the trip device body 1 is installed at the slope structure 3 at a certain inclination angle, and the trip push rod 11 with radian is enabled to extend upwards in an inclined mode and is located on a rotating path of the handle lever 7.

In the above embodiment, the slope structure 3 is disposed at the position of the mounting portion in the housing 2, the trip device is mounted at the slope structure 3 at a certain inclination angle, and the trip push rod 11 is inclined and extends to be located on the rotating path of the handle lever 7, and moves along the arc of the handle according to the handle lever 7.

As a preferred embodiment, as shown in fig. 1-3, a transformer module 4 composed of a plurality of transformer units is installed in the casing 2, the installation portion is a mounting frame 41 of the transformer module 4, the slope structure 3 is formed at the top of the mounting frame 41, wherein the release body 1 is provided with a fixing support 13 attached to the slope structure 3, two installation protrusions are arranged on two sides of a bottom plate of the fixing support 13, the two installation protrusions are fixed on the installation portion after penetrating through the screws 14, namely, fixing holes matched with the screws are correspondingly formed at the top of the mounting frame 41, and a buffer cushion block 31 is arranged between the fixing support 13 of the release body 1 and the slope structure 3, so that abrasion between the release body 1 and the mounting frame 41 can be reduced through the buffer cushion block 31, and action noise is reduced. This kind of structure sets up, fixes trip gear in the slope structure 3 departments at installation shell 41 top through the screw mounting means, has just so realized the equipment of transformer module and trip gear, realizes the modularization installation effect to can regard as a whole synchronous installation to the casing with transformer module and trip gear, mounting structure is simple, improves installation effectiveness, reduction in production cost.

The specific structure of the trip unit body is described in detail below with reference to fig. 2-5:

the trip push rod 11 is including connecting the straight-bar portion 111 of spring 12 to and by the push rod portion 112 of the extension perk of straight-bar portion 111 one end, the top shaping of push rod portion 112 has the first boss 113 of cooperating the contact with handle lever 7, handle lever 7 can support and push on first boss 113 when the combined floodgate rotates, thereby exert the thrust that extrusion spring 12 carries out the energy storage to trip push rod 11, in addition the slope extension design of trip push rod 11 just caters for the oblique push angle of handle lever 7, makes the trip push rod atress more concentrated, reduces the resistance that the trip push rod received in the energy storage process, realizes trip device's energy storage process.

According to the rotation of the casing 2, a traction rod 8 for triggering the circuit breaker to realize trip is arranged, in order to realize reliable cooperation between the trip device and the traction rod 8, a second boss 114 opposite to the traction rod 8 is formed on one side surface of the push rod part 112, a screw hole structure suitable for installing an adjusting screw is arranged on the second boss 114, so that the adjusting screw is arranged on the second boss 114 and corresponds to the traction rod 8, and the triggering distance can be movably adjusted between the second boss 114 and the traction rod 8 through the adjusting screw, therefore, when the trip device is triggered, energy storage is released to drive the trip push rod 11 to move towards the side close to the traction rod 8, and the traction rod is pushed by the adjusting screw to realize trip rotation.

As a specific structural arrangement, as shown in fig. 5, the release body 1 includes a release coil assembly 15 and a release push rod 11 that are disposed on the fixed support 13, and a trip lever 16 that is rotatably connected between the release coil assembly 15 and the release push rod 11, where the release coil assembly 15 is composed of a coil, an iron core, and a push rod, and the trip lever 16 has an L-shaped structure and has a hook end that is matched with the release push rod 11, so that the release push rod 11 is hooked on the hook end of the trip lever 16 in the energy storage movement process, thereby realizing that the release push rod 11 forms a limit fit with the trip lever 16 in the energy storage state, so as to ensure that the release push rod 11 remains in the energy storage state and is ready for triggering the release action of the traction rod 8. Therefore, when the trip coil assembly 15 of the trip device is electrified and triggered, the ejector rod is driven to linearly move, the ejector rod is used for driving the poke rod 16 to rotate, so that the poke rod 16 is separated from the trip push rod 11 and the limit fit is released, and the trip push rod at the moment rapidly acts under the energy storage effect of the spring to trigger the action of the traction rod, so that the trip protection effect of the trip device on the circuit breaker is realized.

In this embodiment, since free metal particles generated when the circuit breaker is broken will contact the trip device to cause erosion damage, in order to avoid the trip device from being damaged by the erosion of the free metal particles in the circuit breaker housing, as shown in fig. 2, a controller module 5 located at the upper side of the transformer module 4 is further installed in the housing 2, an isolation cavity 6 surrounding the trip device body 1 is formed between the controller module 5 and the transformer module 4, an opening suitable for the trip push rod 11 to extend is formed at the front side of the isolation cavity 6, a groove structure matched and covered at the slope structure 3 is arranged at the bottom of the controller module 5, and the groove structure is matched and connected with the slope structure 3 to form an isolation cavity 6, so that the opening position of the isolation cavity 6 is just occupied and blocked by the trip push rod 11, the gap is very narrow, and the free metal particles are difficult to enter into the cavity from the opening.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims

1. The utility model provides a measure trip gear mounting structure of circuit breaker, includes casing (2) and install in trip body (1) and handle lever (7) of casing (2), trip body (1) are including trip push rod (11) and spring (12) that link to each other and set up, handle lever (7) promote when closing a floodgate and rotate trip push rod (11) extrusion spring (12) realize energy storage; the method is characterized in that: the novel trip device is characterized in that an installation part suitable for being connected with the trip device body (1) is arranged in the shell (2), a slope structure (3) is arranged on the installation part, the trip device body (1) is installed at the slope structure (3) at a certain inclination angle, and the trip push rod (11) extends obliquely upwards and is located on a rotating path of the handle lever (7).

2. The trip unit mounting structure of a metering circuit breaker of claim 1, wherein: the release body (1) is provided with a fixing support (13) which is mounted on the slope structure (3), two mounting protrusions are arranged on two sides of a bottom plate of the fixing support (13), and screws (14) penetrate through the mounting protrusions and then are fixed on the mounting portions.

3. The trip unit mounting structure of a metering circuit breaker of claim 2, wherein: the tripping push rod (11) comprises a straight rod part (111) connected with the spring (12) and a push rod part (112) which extends and tilts from one end of the straight rod part (111), and a first boss (113) which is in fit contact with the handle lever (7) is formed at the top end of the push rod part (112).

4. The trip unit mounting structure of a metering circuit breaker of claim 3, wherein: a second boss (114) opposite to the traction rod (8) is formed on one side surface of the push rod part (112), and a screw hole structure suitable for installing an adjusting screw is formed on the second boss (114).

5. The trip unit mounting structure of a metering circuit breaker of any one of claims 1-4, wherein: the transformer module (4) composed of a plurality of transformer units is installed in the shell (2), the installation part is an installation shell frame (41) of the transformer module (4), and the slope structure (3) is formed at the top of the installation shell frame (41).

6. The trip unit mounting structure of a metering circuit breaker of claim 5, wherein: a buffer cushion block (31) is arranged between the fixed support (13) of the release body (1) and the slope structure (3).

7. The trip unit mounting structure of a metering circuit breaker of claim 5, wherein: the novel tripping device is characterized in that a controller module (5) positioned on the upper side of the transformer module (4) is further arranged in the shell (2), an isolation cavity (6) surrounding the tripping device body (1) is formed between the controller module (5) and the transformer module (4), and an opening which is suitable for the tripping push rod (11) to extend out is formed in the front side of the isolation cavity (6).

8. The trip unit mounting structure of a metering circuit breaker of claim 2, wherein: the release body (1) comprises a release coil assembly (15) and a release push rod (11) which are arranged on the fixed bracket (13), and a toggle rod (16) which is rotatably connected between the release coil assembly (15) and the release push rod (11), wherein the release push rod (11) and the toggle rod (16) form limit fit in an energy storage state; the trip coil assembly (15) drives the toggle rod (16) to rotate through the ejector rod, so that limit fit between the toggle rod (16) and the trip push rod (11) is released.