CN220895427U - Mutual inductor mounting structure of circuit breaker - Google Patents

Abstract

The utility model discloses a transformer mounting structure of a circuit breaker, which comprises a transformer body mounted in a containing groove, wherein a plurality of positioning vertical rods are arranged on the front side of the transformer body, positioning slots are formed in the positioning vertical rods, positioning cutting strips inserted into the positioning slots are arranged on retaining wall bosses corresponding to one side of the containing groove, a plurality of positioning clamping grooves are formed in the rear side of the transformer body, and positioning clamping blocks clamped into the positioning clamping grooves are arranged corresponding to the other side of the containing groove. Through the bilateral location cooperation of positioning slot and location cutting and positioning card groove and positioning fixture block, realize the location installation to the mutual-inductor body in the storage tank, prevent that the mutual-inductor body from taking place the position in the storage tank and rocking and the skew condition, installation stability is good, guarantees the accuracy and the reliability that the mutual-inductor used, and this structural design's mutual-inductor adopts location structure to realize installing fast, installs convenient and fast.

Description

Mutual inductor mounting structure of circuit breaker

Technical Field

The utility model relates to the technical field of piezoelectric devices, in particular to a transformer mounting structure of a circuit breaker.

Background

The existing measuring circuit breaker with electric energy metering is provided with intelligent control and electric energy metering functions based on a three-phase three-wire electronic circuit breaker, other electronic modules such as an intelligent controller and a communication module are installed in the measuring circuit breaker, and the protection function and the metering function of the circuit breaker are realized by collecting a plurality of parameters such as current, voltage and temperature.

In order to collect current information of a three-phase main circuit, the current measuring circuit breaker is generally provided with a current transformer for detecting the current information on each phase line, namely three current transformers which can be used for the three-phase main circuit to pass through are required to be installed in a circuit breaker shell, output loops of the three current transformers are connected to an intelligent controller again through soft connection, particularly are welded on a circuit board in the controller, and according to the structure, the current transformers are only limited and accommodated in an installation groove of the shell, and the current transformers are easy to shake and deviate in position in the circuit breaker due to the lack of effective installation positioning measures, so that the detection accuracy and reliability of the current transformers are affected.

Disclosure of utility model

Therefore, the utility model aims to solve the technical problems that the current transformer in the prior art is only limited and accommodated in the mounting groove of the shell, and the current transformer is easy to shake and deviate in position in the circuit breaker due to the lack of effective mounting and positioning measures, and the mounting stability is poor.

In order to solve the technical problem, the utility model provides a transformer installation structure of a circuit breaker, which comprises a containing groove formed on a circuit breaker shell and a transformer body arranged in the containing groove, wherein a plurality of retaining wall bosses are arranged on one side of the containing groove at intervals, a positioning structure is arranged between the transformer body and the containing groove, and the positioning structure comprises:

The first positioning assembly comprises a plurality of positioning vertical rods which are arranged on the front side of the transformer body and correspond to the plurality of retaining wall bosses, positioning slots which are arranged on the positioning vertical rods in an extending manner along the length direction of the positioning vertical rods, and positioning cutting bars which are arranged on the retaining wall bosses and are inserted into the positioning slots;

The second positioning assembly comprises a plurality of positioning clamping grooves arranged on the rear side of the transformer body and positioning clamping blocks which are correspondingly arranged on the other side of the accommodating groove and clamped into the positioning clamping grooves.

As a preferred scheme, the transformer body comprises a mounting seat with a plurality of mounting grooves and a plurality of transformer modules respectively arranged in the plurality of mounting grooves, wherein the front side surface of the mounting seat is provided with a plurality of connecting holes respectively communicated with the plurality of mounting grooves, the notch of the mounting groove is formed in the rear side surface of the mounting seat, and a plurality of positioning vertical rods are integrally formed in the front side surface of the mounting seat and are arranged among the plurality of connecting holes at intervals.

As a preferable scheme, the bottom of the accommodating groove is provided with a plurality of positioning holes corresponding to the plurality of positioning vertical rods, the positioning vertical rods are provided with lower positioning ends which downwards extend out of the bottom of the mounting seat, and the lower positioning ends are inserted into the positioning holes in a matching manner.

As a preferable scheme, the positioning vertical rod is further provided with an upper positioning end which extends upwards out of the top of the mounting seat, and a lead through hole which penetrates through and extends to the upper positioning end and the lower positioning end is formed in the positioning vertical rod.

As a preferable scheme, a plurality of channel structures which are respectively opposite to a plurality of connecting holes are formed between a plurality of retaining wall bosses, the opening end of the positioning slot extends to the lower positioning end, the positioning cutting and the positioning slot extend in the same direction, and the top end of the positioning cutting is provided with a V-shaped guide protrusion.

As a preferable scheme, the positioning clamping groove is a U-shaped clamping groove arranged on the bottom edge of the front side surface of the mounting seat, and the positioning clamping block is a U-shaped clamping block arranged on the side wall of the accommodating groove.

As a preferable scheme, the bottom of mount pad is provided with the fixed orifices, the bottom of circuit breaker casing run through be equipped with the relative through-hole of fixed orifices, pass through the through-hole through the fastener after fixed connection in the fixed orifices.

As a preferable scheme, the mounting groove is internally provided with a positioning column extending along the axial direction of the connecting hole, the transformer module is sleeved on the circular arc rod, the connecting hole is penetrated and arranged in the positioning column, the positioning column consists of two opposite circular arc bodies, and a reinforcing plate is connected between the inner wall of the circular arc body and the inner wall of the mounting groove.

As a preferable scheme, the transformer modules are arranged on the mounting seat, each transformer module is formed into a whole by a current transformer and a metering transformer through a glue filling and sealing structure, and the current transformer and the metering transformer are concentrically arranged.

As a preferable scheme, the top of the mounting seat is provided with three open ends corresponding to three transformer modules, each transformer module comprises a plug-in part extending out of the open end and a contact pin assembly arranged on the plug-in part, and the contact pin assemblies are respectively connected with the wiring terminals of the current transformer and the metering transformer; the circuit breaker is characterized in that a controller device connected with the transformer body is arranged in the circuit breaker shell, and the controller device comprises a socket which is in plug-in fit with the plug-in part and a line through port which is connected with the upper positioning end of the positioning vertical rod.

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

1. According to the transformer installation structure provided by the utility model, the transformer body is installed in the accommodating groove of the circuit breaker shell through the positioning structure, during installation, the front side position of the transformer body is positioned and connected through the plug-in matching of the positioning slot and the positioning cutting, and the rear side position of the transformer body is positioned and connected through the plug-in matching of the positioning clamping groove and the positioning clamping block, the positioning installation of the transformer body in the accommodating groove is realized by utilizing a double-side positioning mode, the installation positioning effect is good, the situation that the transformer body is rocked and offset in the accommodating groove is prevented, the influence caused by product vibration can be also dealt with, the installation stability is good, the use accuracy and reliability of the transformer are ensured, the transformer with the structure adopts the positioning structure to realize quick installation, the installation structure is simple, the installation is convenient and quick, and the installation efficiency is improved.

2. In the transformer installation structure provided by the utility model, the transformer body comprises a plurality of transformer modules arranged on the installation seat, the transformer modules are integrally manufactured by fixedly sealing a current transformer and a metering transformer through pouring sealant, the structural strength of the transformer modules is improved through the pouring sealant structure, the transformer modules have a sealing insulation effect and excellent heat dissipation performance, and the transformer modules can be assembled into a whole by only assembling the transformer modules into the installation grooves of the installation seat, so that the transformer modules are modularized and integrally installed.

3. In the transformer installation structure provided by the utility model, when the transformer body is installed in the accommodating groove of the circuit breaker shell, the lower positioning end of the vertical rod is matched and inserted into the positioning hole in the bottom surface of the accommodating groove through positioning, so that the positioning installation function is further realized, after the positioning of the transformer body is finished, the transformer body passes through the circuit breaker shell from bottom to top through a screw and then is fixedly connected in the fixing hole in the bottom of the installation seat, and therefore, the fixed installation of the transformer in the accommodating groove is realized, the installation structure is simple, and the matching and the fixing are reliable.

4. According to the transformer installation structure, the lead through holes are formed in the positioning vertical rods in a penetrating manner, the lower ends of the lead through holes are connected with the positioning holes, the upper ends of the lead through holes are connected with the wire through holes of the controller, and the structure is provided that the power taking wires or the detection wires arranged at the bottom of the circuit breaker enter the controller through the positioning holes, the lead through holes and the wire through holes, so that circuit connection between the power taking wires or the detection wires and the controller can be achieved, the wires can be led to run in the circuit breaker through the closed channels formed by sequentially connecting the positioning holes, the lead through holes and the wire through holes, the wire through holes are regular and standard, the wires can be prevented from being crushed during installation, and the protection effect on the wires is achieved.

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 transformer mounting structure of a circuit breaker of the present utility model;

Fig. 2 is a schematic structural view of a transformer body according to the present utility model;

fig. 3 is a schematic view of an installation structure of the transformer module in the installation seat according to the present utility model;

fig. 4 is a schematic plan view of a circuit breaker housing of the present utility model;

fig. 5 is a partially enlarged structural schematic view of the circuit breaker housing of the present utility model;

Fig. 6 is a schematic cross-sectional structure of the circuit breaker of the present utility model, particularly illustrating the transformer and controller device.

Reference numerals illustrate: 1. a circuit breaker housing; 2. a receiving groove; 21. a retaining wall boss; 22. positioning the cutting; 23. positioning a clamping block; 24. positioning holes; 25. a through hole; 3. a transformer body; 31. a mounting base; 32. a transformer module; 321. a plug-in part; 322. a pin assembly; 33. a connection hole; 34. a circular arc body; 35. a reinforcing plate; 4. positioning a vertical rod; 41. a lower positioning end; 42. an upper positioning end; 43. a lead wire through hole; 5. positioning the slot; 6. positioning clamping grooves; 7. a fixing member; 8. a controller device; 81. a wire opening; 9. and a conductive plate.

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 transformer mounting structure of a circuit breaker as shown in fig. 1-6, including a holding tank 2 formed on a circuit breaker housing 1, and a transformer body 3 installed in the holding tank 2, a plurality of retaining wall bosses 21 are arranged at intervals on one side of the holding tank 2, a positioning structure is arranged between the transformer body 3 and the holding tank 2, and the positioning structure comprises:

The first positioning assembly comprises a plurality of positioning vertical rods 4 which are arranged on the front side of the transformer body 3 and correspond to the plurality of retaining wall bosses 21, positioning slots 5 which are arranged on the positioning vertical rods 4 in an extending manner along the length direction of the positioning vertical rods 4, and positioning cutting 22 which are arranged on the retaining wall bosses 21 and are inserted into the positioning slots 5;

The second positioning assembly comprises a plurality of positioning clamping grooves 6 arranged on the rear side of the transformer body 3 and positioning clamping blocks 23 correspondingly arranged on the other side of the accommodating groove 2 and clamped into the positioning clamping grooves.

In the above-mentioned embodiment, install in the accommodation groove 2 of circuit breaker casing 1 according to mutual-inductor body 3 through location structure, when the installation, through the grafting cooperation of locating slot 5 and location cutting 22 to the front side position of mutual-inductor body 3 realizes the location and connects to and through the grafting cooperation of locating slot 6 and locating fixture block 23 to the rear side position of mutual-inductor body 3 realizes the location and connects, utilizes two side locate mode in order to realize the location installation of mutual-inductor body 3 in accommodation groove 2, installs location effect good to prevent that mutual-inductor body 3 from taking place the position condition of rocking and skew in the accommodation groove, also can handle the influence that the product vibration brought, installation stability is good, guarantees the accuracy and the reliability that the mutual-inductor used, and this structural design's mutual-inductor adopts location structure to realize quick installation, and installation simple structure installs convenient and fast, improves installation efficiency.

The specific arrangement of the transformer body is described in detail below with reference to fig. 1-3: the transformer body 3 comprises a mounting seat 31 with a plurality of mounting grooves and a plurality of transformer modules 32 respectively arranged in the plurality of mounting grooves, the front side surface of the mounting seat 31 is provided with a plurality of connecting holes 33 respectively communicated with the plurality of mounting grooves, the notch of the mounting groove is arranged on the rear side surface of the mounting seat 31, a plurality of positioning vertical rods 4 are integrally formed on the front side surface of the mounting seat 31 and are arranged between the plurality of connecting holes 33 at intervals, in particular, the circuit breaker provided by the embodiment is of a three-phase circuit structure, a plurality of channel structures respectively opposite to the plurality of connecting holes 33 are formed between a plurality of retaining wall bosses 21, the three-phase circuit structure according to the circuit breaker comprises three conducting plates 9 which are arranged in the plurality of channel structures at intervals, the conducting plates 9 pass through middle through holes 25 of the transformer modules 32 through the connecting holes 33, so that the mutual inductor module 32 can collect relevant current information on the conducting plate 9, correspondingly, the mutual inductor module 32 is provided with three mutual inductor modules on the mounting seat 31, each mutual inductor module 32 is formed into a whole by a current mutual inductor and a metering mutual inductor through a glue filling and sealing structure, the current mutual inductor and the metering mutual inductor are concentrically arranged, the current mutual inductor is used for collecting current information of a main circuit of the circuit breaker, and the metering mutual inductor has higher precision, and mainly collects electric quantity parameter information of the main circuit of the circuit breaker, the structure is used for fixedly sealing the current mutual inductor and the metering mutual inductor through pouring sealant to form the integrated mutual inductor module 32, the structural strength of the mutual inductor module is improved through the glue filling and sealing structure, the sealing and insulating effect and the excellent heat dissipation performance are realized, the structure is provided, the mutual inductor module can be assembled into a whole by only assembling the mutual inductor module on the mounting seat, the transformer module is modularized and integrally installed, the installation structure is simple, the installation is convenient and quick, and the installation efficiency is improved.

As shown in fig. 4-6, the bottom surface of the accommodating groove 2 is provided with a plurality of positioning holes 24 corresponding to a plurality of positioning vertical rods 4, the positioning holes penetrate to the bottom of the circuit breaker housing, the positioning vertical rods 4 are provided with lower positioning ends 41 extending downwards out of the bottom of the mounting seat 31, the lower positioning ends 41 are inserted into the positioning holes 24 in a matching manner, in addition, the bottom of the mounting seat 31 is provided with fixing holes, the bottom of the circuit breaker housing 1 is provided with through holes 25 opposite to the fixing holes in a penetrating manner, the fixing holes are fixedly connected into the fixing holes after penetrating through the through holes 25 through fasteners, the fixing holes are of screw hole structures, the fasteners are preferably screws, and the structure is arranged, so that when the mutual inductor body 3 is mounted in the accommodating groove 2 of the circuit breaker housing 1, the positioning mounting effect is further achieved through the lower positioning ends 41 of the positioning vertical rods 4 being inserted into the positioning holes 24 in a matching manner, and after the mutual inductor body 3 is positioned, the mutual inductor body is penetrated through the circuit breaker housing from bottom to top through the screws, and then the fixing holes are fixedly connected to the bottom of the mounting seat.

As a specific structural arrangement, as shown in fig. 2 and 5, the opening end of the positioning slot 5 extends to the lower positioning end 41, the positioning cutting 22 and the positioning slot 5 extend in the same direction, and the top end of the positioning cutting 22 is provided with a V-shaped guiding protrusion, which is beneficial to guiding the positioning cutting 22 to be inserted into the positioning slot 5 more smoothly, and plays a role in installation guiding. In addition, referring to fig. 3 and 4, the positioning slot 6 is a U-shaped slot disposed on the bottom edge of the front side of the mounting seat 31, and the positioning fixture 23 is a U-shaped fixture disposed on the side wall of the accommodating slot, so that the U-shaped slot and the U-shaped fixture are matched and connected to form a positioning fit.

As shown in fig. 3, a positioning column extending along the axial direction of the connecting hole 33 is arranged in the mounting groove, the transformer module 32 is sleeved on the arc rod, the connecting hole 33 is penetrated and arranged in the positioning column, the positioning column is composed of two opposite arc bodies 34, a reinforcing plate 35 is connected between the inner wall of the arc body 34 and the inner wall of the mounting groove, the connecting hole 33 is of a rectangular hole structure, and the design enables the conductive plate 9 to pass through the connecting hole 33 and pass through the two arc bodies 34, so that penetrating connection between the conductive plate and the transformer can be met, and the structural strength of the two arc bodies can be improved through the reinforcing plate.

The circuit breaker that this embodiment provided is still installed and is connected the controller device 8 of mutual-inductor body 3, realizes information acquisition, communication transmission and intelligent control function to the circuit breaker through controller device 8. Referring to fig. 6, the top of the mounting seat 31 is provided with three open ends corresponding to three transformer modules 32, the transformer modules 32 include a plug portion 321 extending out of the open ends, and a pin assembly 322 disposed on the plug portion 321, the pin assembly 322 is respectively connected with the terminals of the current transformer and the metering transformer, the positioning vertical rod 4 further has an upper positioning end 42 extending upward out of the top of the mounting seat 31, the positioning vertical rod 4 is internally provided with a lead through hole 43 extending through the upper positioning end 42 and the lower positioning end 41, and correspondingly, the controller device 8 includes a plug socket matched with the plug portion 321, and a line through hole 81 connected with the upper positioning end 42 of the positioning vertical rod 4. This kind of structure setting, when installing controller device 8 and mutual-inductor, make mutual-inductor module 32 insert the grafting cooperation that forms in the grafting mouth of controller device 8 through grafting portion, adopt the installation connection between controller device 8 and the mutual-inductor body 3 of connector mode realization, realize electric connection between the two, thereby send the relevant current information that the mutual-inductor module 32 gathered to the controller device, avoided the mutual-inductor to adopt traditional soft connection mode to connect the controller device again like this, the mounting structure has been simplified, realize the modularization installation effect between controller device and the mutual-inductor, installation maintenance is convenient, improve installation effectiveness, be favorable to promoting the development of measuring the circuit breaker to modularization and standardization's direction.

According to the structure, the lower end of the lead through hole is connected with the positioning hole, the upper end of the lead through hole is connected with the wire through hole of the controller, the structure is arranged, a power taking circuit or a detection circuit arranged at the bottom of the circuit breaker enters the controller device through the positioning hole, the lead through hole and the wire through hole, so that circuit connection between the power taking circuit or the detection circuit and the controller device can be realized, a closed channel formed by sequentially connecting the positioning hole, the lead through hole and the wire through hole can guide the circuit to run in the circuit breaker, wiring is neat and standard, and the circuit can be prevented from being crushed during installation, thereby protecting the circuit.

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 (10)

1. The utility model provides a mutual-inductor mounting structure of circuit breaker, including shaping storage tank (2) on circuit breaker casing (1), and install in mutual-inductor body (3) in storage tank (2), storage tank (2) one side interval is provided with a plurality of fender wall bosss (21), be provided with location structure between mutual-inductor body (3) and storage tank (2), its characterized in that, location structure includes:

The first positioning assembly comprises a plurality of positioning vertical rods (4) which are arranged on the front side of the transformer body (3) and correspond to the plurality of retaining wall bosses (21), positioning slots (5) which are arranged on the positioning vertical rods (4) in an extending manner along the length direction of the positioning vertical rods, and positioning cutting bars (22) which are arranged on the retaining wall bosses (21) and are inserted into the positioning slots (5);

The second positioning assembly comprises a plurality of positioning clamping grooves (6) arranged on the rear side of the transformer body (3), and positioning clamping blocks (23) correspondingly arranged on the other side of the accommodating groove (2) and clamped into the positioning clamping grooves.

2. The transformer mounting structure of a circuit breaker according to claim 1, wherein: the transformer body (3) is including mount pad (31) that have a plurality of mounting grooves to and set up a plurality of mutual-inductor module (32) in a plurality of mounting grooves respectively, the leading flank of mount pad (31) is provided with a plurality of connecting holes (33) of a plurality of mounting grooves of intercommunication respectively, the notch of mounting groove is seted up the trailing flank of mount pad (31), is formed with a plurality of channel structures respectively opposite with a plurality of connecting holes (33) between a plurality of retaining wall boss (21), and a plurality of location montant (4) integrated into one piece are in the leading flank of mount pad (31) to the interval divides to establish between a plurality of connecting holes (33).

3. The transformer mounting structure of a circuit breaker according to claim 2, wherein: the bottom surface of the accommodating groove (2) is provided with a plurality of positioning holes (24) corresponding to a plurality of positioning vertical rods, the positioning vertical rods (4) are provided with lower positioning ends (41) which downwards extend out of the bottoms of the mounting seats (31), and the lower positioning ends (41) are inserted into the positioning holes (24) in a matching mode.

4. A transformer mounting structure of a circuit breaker according to claim 3, wherein: the positioning vertical rod (4) is further provided with an upper positioning end (42) extending upwards out of the top of the mounting seat (31), and a lead through hole (43) extending to the upper positioning end (42) and the lower positioning end (41) in a penetrating manner is formed in the positioning vertical rod (4).

5. The transformer mounting structure of a circuit breaker of claim 4, wherein: the opening end of the positioning slot (5) extends to the lower positioning end (41), the positioning cutting (22) and the positioning slot (5) extend in the same direction, and the top end of the positioning cutting (22) is provided with a V-shaped guide protrusion.

6. The transformer mounting structure of a circuit breaker of claim 5, wherein: the positioning clamping groove (6) is a U-shaped clamping groove arranged on the bottom edge of the front side surface of the mounting seat (31), and the positioning clamping block (23) is a U-shaped clamping block arranged on the side wall of the accommodating groove (2).

7. The transformer mounting structure of a circuit breaker of claim 6, wherein: the bottom of mount pad (31) is provided with the fixed orifices, the bottom of circuit breaker casing (1) run through be equipped with fixed orifices relative through-hole (25), pass through fastener through-hole (25) after fixed connection in the fixed orifices.

8. The transformer mounting structure of a circuit breaker according to any one of claims 2-7, wherein: the mounting groove is internally provided with a positioning column extending along the axial direction of the connecting hole (33), the transformer module (32) is sleeved on the circular arc rod, the connecting hole (33) is arranged in the positioning column in a penetrating mode, the positioning column is composed of two opposite circular arc bodies (34), and a reinforcing plate (35) is connected between the inner walls of the circular arc bodies (34) and the inner walls of the mounting groove.

9. The transformer mounting structure of a circuit breaker of claim 8, wherein: the transformer modules (32) are arranged on the mounting base (31), each transformer module (32) is formed into a whole through a glue filling and sealing structure by a current transformer and a metering transformer, and the current transformer and the metering transformer are concentrically arranged.

10. The transformer mounting structure of a circuit breaker of claim 9, wherein: three open ends are arranged at the top of the mounting seat (31) corresponding to the three transformer modules (32), the transformer modules (32) comprise a plug-in part (321) extending out of the open ends, and a pin assembly (322) arranged on the plug-in part (321), and the pin assembly (322) is respectively connected with the wiring ends of the current transformer and the metering transformer; the circuit breaker is characterized in that a controller device (8) connected with the transformer body (3) is arranged in the circuit breaker shell (1), and the controller device (8) comprises a socket which is in plug-in fit with the plug-in part (321), and a communication line port (81) which is communicated with the upper positioning end (42) of the positioning vertical rod (4).