CN216435810U

CN216435810U - Multiple protection circuit breaker structure

Info

Publication number: CN216435810U
Application number: CN202123232444.2U
Authority: CN
Inventors: 李佳诺; 张晓芳; 黄磊
Original assignee: Hubei Tengming Intelligent Electric Co ltd
Current assignee: Hubei Tengming Intelligent Electric Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-05-03
Anticipated expiration: 2031-12-21

Abstract

The utility model discloses a multiple protection circuit breaker structure, including the circuit breaker casing, set up the circuit breaker return circuit in the circuit breaker casing, the circuit breaker return circuit includes incoming line terminal, electromagnetic system, contact system, the terminal outgoing lines that connect gradually, is provided with the arc extinguishing system on the contact system, the contact system is opened and is closed by control mechanism control contact system; be provided with communication line in the circuit breaker, communication line is through being connected information collection with the communication of the sampling point in the circuit breaker return circuit, the control module communication that has communication function that sets up on the communication line other end and the circuit breaker is connected, the sampling point sets up near inlet terminal and outlet terminal temperature sampling point and the arc extinguishing sampling point of setting in arc extinguishing system including setting up the current and voltage sampling point in communication return circuit at least. The utility model discloses arrange a plurality of sensors and check point around mechanical electrical structure, in time make feedback adjustment through real-time supervision voltage, electric current, temperature, electric leakage electrical parameters such as electricity.

Description

Multiple protection circuit breaker structure

Technical Field

The utility model relates to a circuit breaker field especially relates to a multiple protection circuit breaker structure.

Background

The existing circuit breakers are provided with protection modules, but the functions are single, and the traditional circuit breaker or the leakage circuit breaker only has leakage and overload short-circuit protection and no other protection functions; the overvoltage and undervoltage circuit breaker only has overvoltage and undervoltage protection functions, no overload short-circuit protection functions, and no protection functions such as over-temperature and arc faults.

SUMMERY OF THE UTILITY MODEL

For solving the not enough of existence on the above-mentioned circuit breaker prior art, the utility model provides a multiple protection circuit breaker structure arranges a plurality of sensors and check point around mechanical electrical structure, through real-time supervision voltage, electric current, temperature, electric leakage electricity isoparametric.

The utility model discloses a realize through following technical scheme:

a multiple protection circuit breaker structure comprises a circuit breaker shell, wherein a circuit breaker loop is arranged in the circuit breaker shell and comprises an incoming line terminal, an electromagnetic system, a contact system and an outgoing line terminal which are sequentially connected, an arc extinguishing system is arranged on the contact system, and the contact system is controlled by a control mechanism to be opened and closed; be provided with communication line in the circuit breaker, communication line is through being connected information collection with the communication of the sampling point in the circuit breaker return circuit, the control module communication that has communication function that sets up on the communication line other end and the circuit breaker is connected, the sampling point sets up near inlet terminal and outlet terminal temperature sampling point and the arc extinguishing sampling point of setting in arc extinguishing system including setting up the current and voltage sampling point in communication return circuit at least.

Preferably, an electromagnetic switch capable of opening and closing the contact system is arranged above the arc extinguishing system, and the electromagnetic switch is in communication connection with the control module.

As preferred, set up two circuit breaker return circuits in the circuit breaker casing, be N utmost point return circuit and L utmost point return circuit respectively, circuit breaker casing cross-section is the convex, sets up incoming wire terminal and outlet terminal on two shoulders of convex structure respectively, and the convex structure top sets up handle switch, handle switch and control mechanism transmission connection control mechanism's action, the handle switch both sides set up control module, control module is provided with the signal lamp, signal lamp fixed mounting is at the convex structure top.

Preferably, the incoming line terminal and the outgoing line terminal are installed on an insulating heat conduction base, a cavity is arranged in the insulating heat conduction base, and a temperature sampling point is arranged in the cavity.

Preferably, two rows of grooves parallel to the two shoulders are formed in the side walls of the upper portions of the two shoulders of the circuit breaker shell, a copper sheet slot is formed in each groove, and the copper sheet slot is electrically connected with the control module in the shell.

Preferably, the contact system of the L-pole loop comprises a U-shaped static contact and a moving contact, wherein one end of the U-shaped static contact is fixed on the shell of the circuit breaker and is connected with the incoming line terminal, and the other end of the U-shaped static contact is used as a movable contact to be matched with the moving contact; and a current and voltage sampling point is arranged on one side of the fixed part of the U-shaped static contact.

Preferably, a leakage mutual inductor is arranged on a lead connected between the incoming line terminal and the contact system, and the leakage mutual inductor is in communication connection with the communication module.

Compared with the prior art, the utility model, still have the overload and the short-circuit protection function of traditional circuit breaker, increased more protect function simultaneously on mechanical protection's basis, the security is higher to be equipped with communication function, can realize the interconnection intercommunication between the product or in the local area.

Drawings

Fig. 1 is the utility model discloses in a multiple protection circuit breaker N utmost point return circuit structure schematic diagram.

Fig. 2 is the utility model discloses in a multiple protection circuit breaker L utmost point return circuit structure schematic diagram.

Fig. 3 is the utility model discloses in a multiple protection circuit breaker operating device schematic diagram.

Fig. 4 is the utility model discloses in a multiple protection circuit breaker operating device hasp structural schematic.

The reference numbers are as follows:

1. a circuit breaker housing; 2. an incoming terminal; 3. an electromagnetic system; 4. a contact system; 5. an arc extinguishing system; 6. a control mechanism; 7. sampling points of current and voltage; 8. an electromagnetic switch; 9. a handle switch; 10. a signal lamp; 11. a control module; 12. A thermocouple; 13. an insulating heat-conducting base; 14. a groove; 15. a copper sheet slot; 16. a U-shaped static contact piece; 17. a moving contact; 18. an N-pole voltage sampling point; 19. a leakage transformer; 20. an outlet terminal; 101. a first link; 102. a second link; 103. a third link; 104. locking; 105. a moving contact; 106. static contact; 110. a first torsion spring; 111. A third torsion spring; 112. a second torsion spring; 116. a trigger key; 117. a trip bar; 118. a second limit post.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following describes the present invention with reference to the accompanying drawings.

A multiple protection circuit breaker structure comprises a circuit breaker shell 1, wherein a circuit breaker loop is arranged in the circuit breaker shell 1 and comprises an incoming line terminal 2, an electromagnetic system 3, a contact system 4 and an outgoing line terminal 20 which are sequentially connected, an arc extinguishing system 5 is arranged on the contact system 4, and the contact system 4 is controlled by a control mechanism 6 to be opened and closed; the circuit breaker is provided with a communication line, the communication line is in communication connection with a sampling point in a circuit of the circuit breaker to acquire information, the other end of the communication line is in communication connection with a control module 11 with a communication function, the control module is arranged on the circuit breaker, and the sampling point at least comprises a current and voltage sampling point arranged in the communication circuit, a temperature sampling point arranged near an incoming line terminal 2 and an outgoing line terminal 20 and an arc extinguishing sampling point arranged in an arc extinguishing system 5; an electromagnetic switch 8 capable of closing the contact system 4 is arranged above the arc extinguishing system 5, and the electromagnetic switch 8 is in communication connection with the control module 11. The electromagnetic switch 8 adopts an electromagnetic push rod which can push an operating system to close the contact system. The electromagnetic system 3 is a universal device in the circuit breaker, and the line overload directly controls the opening without passing through the control module 11.

The utility model discloses a preferred embodiment, as shown in fig. 1, fig. 2, set up two circuit breaker return circuits in the circuit breaker casing 1, be N utmost point return circuit and L utmost point return circuit respectively, circuit breaker casing 1 cross-section is the convex, set up incoming wire terminal 2 and terminal outgoing lines 20 on the two shoulders of convex structure respectively, convex structure top sets up handle switch 9,

handle switch

9 and 6 transmission connection control mechanism 6's of control mechanism action, concrete structure and control mode can refer to the control mechanism of circuit breaker separating brake combined floodgate in the conventional art, handle switch 9 both sides set up control module 11, control module 11 is provided with signal lamp 10, signal lamp 10 fixed mounting is at convex structure top. The core part of the control module 11 generally adopts a common DS80C390 microprocessor to analyze and process the collected data and make feedback. The feedback signal is sent to the electromagnetic switch. The specific operating principle of the electromagnetic control device is referred to the prior art.

The utility model discloses a preferred embodiment, incoming line terminal 2 and outgoing line terminal 20 are installed on insulating heat conduction base 13, are provided with the cavity in the insulating heat conduction base 13, are provided with the temperature sample point in the cavity, and the temperature sample point generally is thermocouple 12, can detect incoming line terminal 2 and outgoing line terminal 20 and connect well.

In a preferred embodiment of the present invention, two rows of grooves 14 parallel to the shoulders are formed on the side wall of the upper portion of the two shoulders of the circuit breaker housing 1, and the grooves 14 are provided with copper sheet slots 15, and the copper sheet slots 15 are electrically connected with the control module 11 inside the housing. The control module 11 also typically includes communication circuitry for transmitting the collected data to an external control display system of the circuit breaker, either by wire or wirelessly. The structure mainly provides a wired transmission mode, when a plurality of circuit breakers are connected in parallel, a long copper sheet can be inserted in the groove, then a lead is led out from one end of the copper sheet to be connected with an external control display system, collected current and voltage signals are displayed on an external display, and complex wiring is avoided.

In a preferred embodiment of the present invention, the contact system 4 of the L-pole loop includes a U-shaped static contact 16 and a moving contact 17, one end of the U-shaped static contact 16 is fixed on the circuit breaker housing 1 and connected to the incoming line terminal 2, and the other end is used as a moving contact to be matched with the moving contact 17; a current voltage sampling point is arranged on one side of the fixed part of the U-shaped static contact piece 16. The current voltage sampling points are generally set to three, two of which are current sampling points, one of which is a voltage sampling point, and one of the corresponding positions (at the end of the outlet terminal 20) of the N-pole loop can be selected as an N-stage voltage sampling point. When the line is disconnected, the voltage at the two ends is 0; when the line is on, the voltage across the line is 220.

In a preferred embodiment of the present invention, a leakage transformer 19 is disposed on the wire connected between the incoming line terminal 2 and the contact system 4, and the leakage transformer 19 is connected to the communication module for communication.

The above-described embodiment may perform the following functions:

(1) whether electric leakage is generated or not is monitored in real time through the electric leakage mutual inductor 19;

(2) the thermocouple 12 is arranged to monitor the incoming line terminal 2, if the electric wire is not locked, the abnormal heating can occur, and when the monitored temperature exceeds the designed threshold value, the opening is forced, so that the protection function is realized;

(3) get signal point on main loop (L utmost point) stationary contact copper bar and be connected to control module 11, but real-time supervision voltage current signal, when appearing slight excessive pressure, under-voltage, when overpower, CPU can send early warning information after the voltage value judgement through gathering, if appear strong excessive pressure, under-voltage, when overpower, CPU directly sends and forces the separating brake signal, realize the separating brake through electromagnetic switch 8, guarantee circuit safety, when line voltage resumes normal range, can send closing signal automatically, realize closing a floodgate through electromagnetic switch 8, resume circuit power consumption.

(4) The arc intensity was monitored by the arc extinction sampling point.

In a preferred embodiment of the present invention, an operating mechanism capable of simultaneously performing a closing operation and a breaking operation is provided, as shown in fig. 3.

When the switch is switched on, the electromagnetic switch 8 receives an electric signal, the electromagnetic switch 8 moves towards the rotational connection position of the first connecting rod 101 and the second connecting rod 102 (the second connecting rod 102 and the third connecting rod 103 are prevented from being opposite to the first stopper by the latch 104, so the electromagnetic switch is regarded as a whole), when the end surface of the electromagnetic switch and the connecting rod assembly start to contact, the first rotation point is pushed towards the direction far away from the electromagnetic switch, when the first rotation point passes through the perpendicular line from the rotational connection point of the first connecting rod 101 and the shell to the electromagnetic switch and is positioned at the side far away from the electromagnetic switch, the second stopper blocks the rotational motion of the first connecting rod 101 when the electromagnetic switch continues to rotate, the second torsion spring 112 continuously drives the auxiliary connecting rod device to move upwards all the time, so that the first connecting rod 101 which has passed through the balance point is continuously pushed towards the right side, because the torsion of the first torsion spring 110 and the third torsion spring 111 can not overcome the second torsion spring 112, the mechanism is always kept in a locked state. The third link 103 is always in a position far away from the electromagnetic switch, and pushes the movable contact 105 and the fixed contact 106 to make contact.

During brake opening, the trigger key 116 rotates to a position where the electromagnetic switch 8 can contact along with the first connecting rod 101, the electromagnetic switch 8 contacts with a touch section of the trigger key 116 and drives the trigger key 116 to rotate, when the trigger key 116 rotates, an adjusting section of the trigger key contacts with the trip rod 117 and simultaneously drives the trip rod 117 to rotate clockwise, and the trip rod 117 and the second limit column 118 on the lock catch 104 contact and drive the lock catch 104 to rotate clockwise. The second torsion spring 112 always applies a pushing force to the link assembly, and after the latch 104 rotates by a certain angle, the step position on the second link 102 is no longer locked with the latch 104, but can pass through the plane position on the rotating shaft of the latch 104, at this time, the second link 102 can rotate around the third link 103 towards the direction away from the electromagnetic switch, and the second link 102 and the third link 103 are no longer a fixed integral mechanism. At this time, the second torsion spring 112 drives the connection position of the movable contact 105 and the third link 103 to move upward, and simultaneously, the movable contact 105 and the fixed contact 106 are separated; since the inner structure of the secondary link device is loosened, the second torsion spring 112 cannot apply a force to the first link 101, and thus the first torsion spring 110 and the third torsion spring 111 drive the first rotation point to return to the initial position.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. A multiple protection circuit breaker structure comprises a circuit breaker shell, wherein each circuit breaker loop comprises an incoming line terminal, an electromagnetic system, a contact system and an outgoing line terminal which are connected through a wire or a conductor, the contact system is provided with an arc extinguishing system, and the contact system is controlled to be opened and closed by a control mechanism; its characterized in that, be provided with communication line in the circuit breaker, communication line is through with the circuit breaker return circuit in the sampling point communication connection information collection control module communication that has communication function that sets up is connected on the communication line other end and the circuit breaker, the sampling point sets up the temperature sampling point near incoming wire terminal and the terminal outgoing lines and sets up the arc extinguishing sampling point in arc extinguishing system including the current and voltage sampling point that sets up in the circuit breaker return circuit at least.

2. The multiple protection breaker structure according to claim 1, wherein an electromagnetic switch capable of opening and closing the contact system is disposed above the arc extinguishing system, and the electromagnetic switch is in communication connection with the control module.

3. The multiple protection circuit breaker structure according to claim 1, wherein two circuit breaker loops, namely an N-pole loop and an L-pole loop, are arranged in the circuit breaker housing, the cross section of the circuit breaker housing is convex, two shoulders of the convex structure are respectively provided with an incoming line terminal and an outgoing line terminal, the top of the convex structure is provided with a handle switch, the handle switch is in transmission connection with a control mechanism to control the action of the control mechanism, the two sides of the handle switch are provided with the control module, the control module is provided with a signal lamp, and the signal lamp is fixedly installed at the top of the convex structure.

4. The multiple protection breaker structure of claim 3 wherein said incoming and outgoing terminals are mounted on an insulating and thermally conductive base, said insulating and thermally conductive base having a cavity therein, said cavity having a temperature sampling point therein.

5. The multiple protection breaker structure of claim 3, wherein the breaker housing has two rows of grooves parallel to the shoulders on the upper side walls of the shoulders, and copper slots are formed in the grooves and electrically connected to the control module inside the housing.

6. The multiple protection circuit breaker structure of claim 3, wherein the contact system of the L-pole loop comprises a U-shaped static contact and a moving contact, wherein one end of the U-shaped static contact is fixed on the circuit breaker shell and connected with the incoming line terminal, and the other end of the U-shaped static contact is used as a moving contact to be matched with the moving contact; and a current and voltage sampling point is arranged on one side of the fixed part of the U-shaped static contact.

7. The multiple protection circuit breaker structure of claim 3, wherein a leakage transformer is disposed on a wire connecting the incoming terminal and the contact system, and the leakage transformer communication module is in communication connection.