CN214797275U

CN214797275U - Thermomagnetic measuring switch device

Info

Publication number: CN214797275U
Application number: CN202121186409.9U
Authority: CN
Inventors: 叶选镇; 吴炳伟; 王平; 卢友伟; 朱建佑; 卢岳友
Original assignee: Qianyou Technology Co ltd
Current assignee: Qianyou Technology Co ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-11-19
Anticipated expiration: 2031-05-28

Abstract

The utility model discloses a thermomagnetic measuring switch device, which comprises a base, an upper seat, a metering mutual inductor, an independent carrier module and a thermomagnetic driving mechanism, wherein the independent carrier module comprises a carrier plug-in board fixed in a groove cavity of the upper seat and a carrier module inserted in the groove cavity; the thermal magnetic driving mechanism is arranged on the base and located on one side below the carrier module, and comprises a thermal tripping structure and an electromagnetic tripping structure which are integrally arranged on the support. The utility model discloses a measurement switch device has adopted independent carrier module and thermomagnetic actuating mechanism combination form, realizes multiple information transmission function through independent carrier module, can send the electric quantity parameter information that the measurement mutual-inductor gathered to smart power grids system, just so can combine the measurement function of product to realize terminal prepayment control, this kind of thermomagnetic actuating mechanism's compact structure, stability is good and the fault rate is low, installs more swiftly, promotes product life and performance.

Description

Thermomagnetic measuring switch device

Technical Field

The utility model relates to a low-voltage apparatus technical field, concretely relates to thermomagnetic formula measurement switch device.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time. At present, along with the popularization of a smart power grid, an electronic molded case circuit breaker is widely applied, has the functions of overload long delay inverse time, short circuit short delay, short circuit instant and under-voltage protection, realizes tripping and opening of the circuit breaker by driving an electronic release through a control circuit board, and can protect a circuit and power supply equipment from being damaged.

In order to realize the communication connection between the circuit breaker and the smart grid system, the current method is to install a carrier communication module connected with a control circuit board in the electronic molded case circuit breaker so as to realize the communication connection of the circuit breaker and have various information transmission functions. For example, chinese patent document CN210378931U discloses an electronic molded case circuit breaker, including a base, a middle cover arranged on the base, an upper cover arranged on the middle cover, an operating mechanism, a contact system, and a remote control module, wherein the remote control module includes a first circuit board, a second circuit board, and a carrier module, a plurality of support columns are arranged in the middle cover, the first circuit board is fixed on each support column, a plurality of support rods are arranged at one side of the middle cover corresponding to the first circuit board, the second circuit board is fixed on each support rod, an accommodating cavity for placing the carrier module is arranged at the upper cover corresponding to the second circuit board, a through hole communicated with an inner cavity of the middle cover is arranged in the accommodating cavity, and the carrier module is arranged in the accommodating cavity and connected to the second circuit board.

As can be seen from the structure of the above-mentioned electronic molded case circuit breaker, the following problems still exist: firstly, two circuit boards are arranged between the upper cover and the middle cover, the occupied internal space of the circuit breaker is large, the arrangement cost is high, the carrier communication module can be inserted and matched with the circuit boards only by penetrating the upper cover into the middle cover, and the installation and the replacement are troublesome; secondly, the electronic circuit breaker is greatly influenced by external environment, and is particularly used in humid environments with large temperature change, so that the service life of the control circuit board is short, the anti-interference capability is poor, the failure rate is high, and the replacement and maintenance cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome exist not enough among the prior art to a carrier wave module is changed in the installation simple and convenient is provided, and environmental suitability is strong, and stability is good and the fault rate is low, long service life's thermomagnetic formula measurement switch device.

In order to achieve the above object, the present invention provides a thermomagnetic measuring switch device, including:

the shell structure comprises a base and an upper seat, wherein a groove cavity is formed in one side, close to a wire inlet end of the base, of the upper seat, and a metering mutual inductor is arranged on a main circuit structure of the base in a penetrating mode;

the independent carrier module comprises a carrier plug-in board fixed in the groove cavity and a carrier module inserted in the groove cavity, the carrier module is electrically connected with the carrier plug-in board through a plug-in component, and the carrier module can be used for receiving and sending electric quantity parameter information collected by the metering transformer;

the thermal magnetic driving mechanism is arranged on the base, connected with the main circuit structure and located on one side below the carrier module, and comprises a support fixed on the base, and a thermal tripping structure and an electromagnetic tripping structure which are integrally arranged on the support, wherein the thermal tripping structure and the electromagnetic tripping structure are respectively in matched connection with a traction rod in the base, and when any one of the thermal tripping structure and the electromagnetic tripping structure is triggered, the traction rod can be driven to trip and separate from a brake to rotate.

In the above thermomagnetic measurement switch device, the groove cavity includes an upper cavity portion adapted to accommodate the carrier module, and a lower cavity portion protruding to one side of the base, and the carrier card is fixed in the lower cavity portion through a mounting structure.

In the thermomagnetic measurement switch device, the groove cavity comprises a limit step which is horizontally formed between the upper cavity part and the lower cavity part, and the carrier module is matched and abutted against the limit step when inserted into the upper cavity part.

In the thermomagnetic measurement switch device, the mounting structure includes mounting bosses disposed on both sides of the lower cavity, and a screw structure passing through the carrier card and fixed on the mounting bosses.

In the above thermomagnetic measurement switch device, the plug-in component includes two connection plugs oppositely disposed on the carrier plug-in board, and two connection sockets disposed at the bottom of the carrier module and connected with the connection plugs in an opposite-insertion manner.

In the thermomagnetic measurement switch device, an L-shaped installation area is formed at the bottom of the groove cavity and located below the limit step, and the thermomagnetic drive mechanism is arranged in the installation area relative to the drawbar.

In the thermomagnetic measurement switch device, the thermal trip structure comprises a thermal element bent to cross the bracket and connected with the main circuit structure, and a bimetal fixedly connected to the thermal element, the bimetal has a trigger end vertically extending to the installation interval and heated to bend, and when the thermal trip structure is triggered, the trigger end bends to push the traction rod to rotate.

In foretell thermomagnetic formula measurement switch device, the support includes two backup pads that set up relatively, electromagnetism dropout structure includes the armature of rotatable setting on two backup pads through the pivot, and for armature is fixed yoke on the hot element, armature has vertical extension to push rod portion in the installation interval, be equipped with the crotch end relative with the traction lever in the push rod portion, electromagnetism dropout structure is acted on with the actuation through the magnetic field that the yoke produced when being triggered armature rotates, makes the crotch end drive under the armature drives the traction lever rotates.

In the thermomagnetic measurement switch device, the push rod part and the bimetal part are arranged between the two support plates side by side, and the trigger end is provided with an adjusting screw.

In the thermomagnetic measuring switch device, the bimetal and the magnetic yoke are oppositely arranged on two side surfaces of the thermal element, and the bimetal and the magnetic yoke are fixedly connected through a rivet piece penetrating through the thermal element.

Compared with the prior art, the technical scheme of the utility model have the following advantage:

1. the utility model provides a thermomagnetic measuring switch device, which adopts the combination form of an independent carrier module and a thermomagnetic driving mechanism, realizes multiple information transmission functions of the measuring switch device through the independent carrier module, can transmit electric quantity parameter information collected by a metering mutual inductor to an intelligent power grid system, and can realize terminal prepayment control by combining the metering function of a product, the independent carrier module is formed by a carrier module and a carrier plug-in board which are inserted and matched in a groove cavity of an upper seat, realizes modular installation effect independently of a base, does not interfere the internal structural layout of the base, is convenient to install and disassemble, and is composed of a mechanical thermal tripping structure and an electromagnetic tripping structure according to the thermomagnetic driving mechanism, replaces an electronic tripping device controlled by a circuit board, and plays the functions of overload and short circuit protection for the measuring switch device, the environment adaptability is strong, the stability in use is good and the fault rate is low to utilize the integral type structure of hot dropout structure and electromagnetism dropout structure to realize synchronous installation on the base, overall structure is more compact, and the installation is got up convenient and fast, improves product assembly efficiency, and the design is favorable to promoting product life like this, reduction in production cost, and market competition is strong.

2. The utility model provides a thermomagnetic formula measurement switch device, according to carrier wave plug-in components board setting in lower cavity, the carrier wave module inserts in the upper cavity and forms the cooperation of pegging graft with carrier wave plug-in components board to realize that circuit breaker and smart power grids system's communication are connected, simultaneously, the bottom of carrier wave module can the butt on the spacing step between upper cavity portion and lower cavity portion, this kind of structure setting, plays spacing installation effect in the recess intracavity to the carrier wave module through spacing step, has just also injectd the insertion distance of carrier wave module can prevent effectively like this to take place excessive extrusion and cause the damage condition between carrier wave module and the carrier wave plug-in components board, and the accuracy and the stability of plug between carrier wave module and the carrier wave plug-in components board are guaranteed in such design, use safe and reliable.

3. The thermomagnetic measuring switch device provided by the utility model is arranged by extending side by side according to the bimetal piece of the thermal tripping structure and the push rod part of the electromagnetic tripping structure, and are respectively arranged opposite to the traction rods, the electromagnetic tripping structure is triggered when the short-circuit fault occurs in the measurement switch device by adopting the structure arrangement, the armature is attracted to rotate under the action of a magnetic field generated by the magnetic yoke, the armature drives the push rod part to deflect towards one side of the traction rod in the rotating process of the armature close to one side of the magnetic yoke, the hook end of the push rod part pushes the traction rod to release and separate the brake to rotate, so as to realize the short-circuit protection of the measurement switch device, and when the measuring switch device is overloaded, the thermal tripping structure is triggered to act, so that the triggering end of the bimetal is heated to bend and move towards one side of the traction rod, the trigger end pushes the traction rod to release and separate brake to rotate, so that the overload protection of the measurement switch device is realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic plan view of a thermomagnetic measurement switch device according to the present invention;

fig. 2 is a schematic view of a split structure of the thermomagnetic measurement switch device of the present invention;

fig. 3 is a schematic cross-sectional structure diagram of the thermomagnetic measurement switch device of the present invention;

FIG. 4 is an enlarged schematic view of the groove cavity of the present invention;

fig. 5 is a schematic structural view of the thermo-magnetic driving mechanism of the present invention;

description of reference numerals: 1. a base; 2. an upper seat; 21. a groove cavity; 211. an upper chamber section; 212. a lower chamber section; 213. a limiting step; 22. a screw structure; 3. a carrier module; 4. a carrier card; 41. a connecting plug; 5. a thermo-magnetic drive mechanism; 51. a thermal trip structure; 511. a thermal element; 512. a bimetal; 513. an adjusting screw; 52. an electromagnetic trip structure; 521. an armature; 522. a magnetic yoke; 523. a push rod part; 53. a support; 6. a metering transformer; 7. a main circuit structure; 8. a drawbar.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, 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 invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

The present embodiment provides a thermomagnetic measurement switch device as shown in fig. 1 to 5, comprising:

the shell structure comprises a base 1 and an upper seat 2, wherein a groove cavity 21 is formed in one side, close to a wire inlet end of the base 1, of the upper seat 2, and a metering transformer 6 penetrates through a main circuit structure 7 of the base 1;

the independent carrier module comprises a carrier plug-in board fixed in the groove cavity 21 and a carrier module 3 inserted in the groove cavity 21, the carrier module 3 is electrically connected with the carrier plug-in board through a plug-in component, and the carrier module 3 can be used for receiving and sending electric quantity parameter information collected by the metering transformer 6;

the thermal magnetic driving mechanism 5 is installed on the base 1, connected with the main circuit structure 7 and located on one side below the carrier module 3, and comprises a support fixed on the base 1, and a thermal tripping structure 51 and an electromagnetic tripping structure 52 integrally installed on the support, wherein the thermal tripping structure 51 and the electromagnetic tripping structure 52 are respectively in matched connection with a traction rod in the base 1, and when any one of the two is triggered, the traction rod can be driven to trip and separate from the brake to rotate.

In the above embodiment, the measurement switch device of this embodiment adopts a combination of an independent carrier module and a thermomagnetic driving mechanism, and realizes multiple information transmission functions of the measurement switch device through the independent carrier module, and can transmit the parameter information of the electric quantity collected by the metering transformer 6 to the smart grid system, so that the terminal prepayment control can be realized by combining the metering function of the product, the independent carrier module is formed by the carrier module 3 and the carrier card board in the groove cavity 21 of the upper base 2 to complete the insertion and connection cooperation, and is independent of the base 1 to realize the modularized installation effect, i.e. the internal structure layout of the base 1 is not interfered, the installation and the disassembly are both convenient, and the thermomagnetic driving mechanism 5 is formed by the mechanical thermal tripping structure 51 and the electromagnetic tripping structure 52, it replaces the electronic trip controlled by the circuit board, and has the overload and short circuit protection functions for the measurement switch device, the environment adaptability is strong, the stability in use is good and the fault rate is low to utilize the integral type structure of hot dropout structure 51 and electromagnetism dropout structure 52 to realize synchronous installation on base 1, overall structure is more compact, and the installation is got up convenient and fast, improves product assembly efficiency, and the design is favorable to promoting product life like this, reduction in production cost, and market competition is strong.

As a preferred embodiment, as shown in fig. 2-4, the recess cavity 21 is including being fit for holding the last cavity portion 211 of carrier module 3, and to the protruding lower cavity portion 212 that stretches in base 1 one side, carrier card board 4 is fixed through mounting structure in the lower cavity portion 212, mounting structure is including setting up the installation boss of lower cavity portion 212 both sides, and pass carrier card board is fixed screw structure 22 on the installation boss, extract carrier module 3 from last cavity portion 211 after, alright install carrier card board in lower cavity portion 212 with the screw mode, just so need not to unpack upper bracket 2 and base 1 again and can install, the installation is dismantled just comparatively conveniently. The carrier card 4 is used for supplying power to the carrier module 3 to realize the electrical connection with the measurement switch device, and a central circuit board is integrated in the carrier module 3 and used as a core to centrally control the communication connection of the measurement switch device through a protocol or a circuit.

As a specific structure setting, recess cavity 21 is including being the level form shaping and is in go up cavity portion 211 with spacing step 213 between cavity portion 212 down, carrier module 3 inserts go up cavity portion 211 time with spacing step 213 cooperation offsets, links to each other through connecing the plug assembly according to carrier module 3 and carrier card board 4, connect the plug assembly including setting up relatively two connecting plug 41 on the carrier card board, and set up carrier module 3 bottom and with connecting plug 41 is used for transmission current and signal to two connection socket 31 that link to each other to inserting, through connecting plug 41 and connection socket 31's cooperation, and convenient for connection has good mechanical properties and electrical property, guarantees the stability and the reliability of the two connections. Adopt above-mentioned scheme design, carrier module 3 inserts in last cavity portion 211 and forms the cooperation of pegging graft with carrier card board 4 to realize that the communication of circuit breaker and smart power grids system is connected, simultaneously, the bottom of carrier module 3 can butt on the spacing step 213 between last cavity portion 211 and lower cavity portion 212, this kind of structure sets up, plays spacing installation effect to carrier module 3 in recess 21 through spacing step 213, has just also injectd carrier module 3's insertion distance, can effectively prevent to take place excessively to extrude and cause the damage condition between carrier module 3 and the carrier card board 4 like this, design assurance carrier module 3 and carrier card board 4 between the accuracy and the stability of plug-in connection like this, use safe and reliable.

The specific arrangement of the thermomagnetic trip mechanism is described in detail below with reference to fig. 3 and 5:

an L-shaped installation section 13 is formed at the bottom of the groove cavity 21 and located below the limiting step 213, and the thermo-magnetic driving mechanism 5 is arranged in the installation section 13 relative to the traction rod. Further, the thermal trip structure 51 comprises a thermal element 511 bent to pass through the bracket and connected with the main circuit structure 7, and a bimetal 512 fixedly connected to the thermal element 511, wherein the bimetal 512 has a trigger end vertically extending into the installation area 13 and heated to perform bending motion, and when the thermal trip structure 51 is triggered, the trigger end bends to push the drawbar to rotate.

As shown in fig. 5, the bracket includes two support plates disposed opposite to each other, the electromagnetic trip structure 52 includes an armature 521 rotatably disposed on the two support plates through a rotating shaft, and a yoke 522 fixed to the thermal element 511 with respect to the armature 521, the armature 521 having a push rod portion 523 extending vertically into the mounting section 13, the push rod portion 523 is provided with a hook end opposite to the traction rod, when the electromagnetic trip structure 52 is triggered, the armature 521 is attracted to rotate under the action of a magnetic field generated by the magnetic yoke 522, so that the hook end drives the traction rod to rotate under the driving of the armature 521, wherein the push rod portion 523 and the bimetal 512 are arranged between the two support plates side by side, an adjusting screw 513 is arranged on the triggering end, and the distance between the triggering end and the traction rod can be adjusted through the adjusting screw 513. By adopting the structure, the electromagnetic tripping structure 52 is triggered when the short circuit fault occurs to the measurement switch device, the armature 521 is attracted and rotated under the action of a magnetic field generated by the magnetic yoke 522, the armature 521 drives the push rod part 523 to deflect towards one side of the traction rod in the rotating process close to one side of the magnetic yoke 522, the hook end of the push rod part 523 pushes the traction rod to trip and open the brake to rotate, the short circuit protection of the measurement switch device is realized, the thermal tripping structure 51 can be triggered to act when the overload occurs to the measurement switch device, so that the triggering end of the bimetallic element 512 is heated to bend towards one side of the traction rod, and the traction rod trips and opens the brake to rotate through the triggering end, so that the overload protection of the measurement switch device is realized.

Further preferably, the bimetal 512 and the magnetic yoke 522 are oppositely arranged on two side surfaces of the thermal element 511, the bimetal 512 and the magnetic yoke 522 are fixedly connected through a rivet passing through the thermal element 511, one end of the thermal element 511 is connected with the main circuit structure 7, the other end of the thermal element 511 is connected with the movable contact structure, and the thermal element 511 is used for realizing the loop conduction between the main circuit structure 7 and the movable contact assembly.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A thermomagnetic measurement switching device, comprising:

the shell structure comprises a base (1) and an upper seat (2), a groove cavity (21) is formed in one side, close to a wire inlet end of the base (1), of the upper seat (2), and a metering transformer (6) penetrates through a main circuit structure (7) of the base (1);

the independent carrier module comprises a carrier plug-in board fixed in the groove cavity (21) and a carrier module (3) inserted in the groove cavity (21), the carrier module (3) is electrically connected with the carrier plug-in board through a plug-in component, and the carrier module (3) can be used for receiving and sending electric quantity parameter information collected by the metering mutual inductor (6);

the thermal magnetic driving mechanism (5) is installed on the base (1), connected with the main circuit structure (7) and located on one side below the carrier module (3), and comprises a support (53) fixed to the base (1) and a thermal tripping structure (51) and an electromagnetic tripping structure (52) which are integrally installed on the support, wherein the thermal tripping structure (51) and the electromagnetic tripping structure (52) are respectively in matched connection with a traction rod (8) in the base (1), and when any one of the two is triggered, the thermal tripping structure and the electromagnetic tripping structure can drive the traction rod to trip and separate from a brake to rotate.

2. Thermomagnetic measuring switch device according to claim 1, characterized in that: the groove cavity (21) comprises an upper cavity part (211) suitable for accommodating the carrier module (3) and a lower cavity part (212) protruding towards one side of the base (1), and the carrier card board (4) is fixed in the lower cavity part (212) through a mounting structure.

3. Thermomagnetic measuring switch device according to claim 2, characterized in that: the groove cavity (21) comprises a limiting step (213) which is horizontally formed between the upper cavity part (211) and the lower cavity part (212), and the carrier module (3) is matched and abutted against the limiting step (213) when inserted into the upper cavity part (211).

4. Thermomagnetic measurement switching device according to claim 3, characterized in that: the mounting structure comprises mounting bosses arranged on two sides of the lower cavity part (212), and screw structures (22) penetrating through the carrier plug-in boards and fixed on the mounting bosses.

5. Thermomagnetic measurement switching device according to claim 4, characterized in that: the plug-in assembly comprises two connecting plugs (41) which are oppositely arranged on the carrier plug-in board, and two connecting sockets (31) which are arranged at the bottom of the carrier module (3) and are oppositely connected with the connecting plugs (41).

6. Thermomagnetic measurement switching device according to any one of claims 3 to 5, characterized in that: an L-shaped installation area (13) is formed at the bottom of the groove cavity (21) and located below the limiting step (213), and the thermomagnetic driving mechanism (5) is arranged in the installation area relative to the traction rod.

7. The thermomagnetic measurement switching device of claim 6, wherein: hot dropout structure (51) are including buckling to cross support (53) with hot component (511) that main circuit structure (7) link to each other, and fixed connection are in bimetal (512) on hot component (511), bimetal (512) have vertical extension to in the installation interval and the trigger end of being heated bending motion, pass through when hot dropout structure (51) is triggered the crooked promotion of trigger end draw bar (8) rotate.

8. The thermomagnetic measurement switching device of claim 7, wherein: the support (53) includes two backup pads that set up relatively, electromagnetism dropout structure (52) include through the rotatable armature (521) that sets up in two backup pads of pivot, and for armature (521) are fixed yoke (522) on hot component (511), armature (521) have vertical extension to push rod portion (523) in the installation interval, be equipped with the crotch end relative with the traction bar on push rod portion (523), electromagnetism dropout structure (52) are acted on with the actuation through the magnetic field that yoke (522) produced when being triggered armature (521) rotate, make the crotch end drive under armature (521) drive the traction bar rotates.

9. The thermomagnetic measurement switching device of claim 8, wherein: the push rod part (523) and the bimetal (512) are arranged between the two support plates side by side, and the trigger end is provided with an adjusting screw (513).

10. The thermomagnetic measurement switching device of claim 9, wherein: the bimetal (512) and the magnetic yoke (522) are oppositely arranged on two side surfaces of the thermal element (511), and the bimetal (512) and the magnetic yoke (522) are fixedly connected through the thermal element (511) through rivet pieces.