CN218182156U - Tripping device and surge protector - Google Patents

Abstract

The application belongs to the technical field of electronic devices, and particularly provides a tripping device which comprises a base, a sliding piece, a first elastic piece, a connecting conductor, a first electrode and a second electrode; the sliding part is connected to the seat body in a sliding manner; the first end of the first elastic piece is connected with the base body, and the second end of the first elastic piece is connected with the sliding piece; the connecting conductor is connected with the sliding piece; the first electrode is connected with a first end of the connecting conductor; the second electrode is connected to a second end of the connection conductor. The application also provides a surge protection device, including foretell trip gear this application provides trip gear and surge protection device, through setting up first elastic component connection slider, can be fast when surge protection device inefficacy or deterioration with the electric wire netting disconnection, response speed is fast, and the good reliability has avoided causing the conflagration to take place because of the surge protection device short circuit.

Description

Tripping device and surge protector

Technical Field

The application belongs to the technical field of electronic devices, and particularly relates to a tripping device and a surge protection device.

Background

Along with the development of science and technology, more and more electrical equipment is used by people, and the internal structure of the electrical equipment is more and more precise and sensitive. However, due to the switching of the power supply, the lightning strike in a short distance, the mutual interference between the electrical devices, and the like, a surge, i.e., a voltage with a very high peak value and an extremely short holding time, often occurs in the signal line of the electrical devices. Such high voltages are highly damaging to the components of the electrical apparatus. Therefore, various types of surge protectors are often used to protect electrical equipment in the line.

Surge protectors are commonly used in electrical lines in homes, offices, industrial sites, etc. to prevent damage to electrical equipment from transient overvoltages in the lines. When the peak current or voltage is suddenly generated in the electric loop or the communication line due to external interference, the surge protector can conduct and shunt in a very short time, so that the damage of the surge to other equipment in the loop is avoided.

Surge protectors generally include trip devices by which a circuit is broken when a device is degraded, thereby protecting electrical equipment.

The tripping device of the existing laminated discharge gap product is mainly arranged on two side surfaces of an electrode or clamped between graphite gap electrodes, and the tripping device arranged on the two side surfaces has the phenomenon of unreliable tripping.

The other is a tripping device placed in the middle of the graphite electrode, which has the main defects that when a large-current long-wave test is carried out or the leakage current of the product is large due to long-term deterioration, the graphite in the middle has large heat productivity, and a plastic part loaded in the middle is easy to deform, so that the tripping device is blocked and cannot be normally disconnected.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a tripping device and a surge protection device, so as to solve the technical problems that the tripping action of the tripping device in the surge protection device in the prior art is unreliable and the phenomenon of blocking easily occurs.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: a tripping device and a surge protector are provided, which comprise a base body, a sliding part, a first elastic part, a connecting conductor, a first electrode and a second electrode; the sliding part is connected to the seat body in a sliding manner; the first end of the first elastic piece is connected with the base body, and the second end of the first elastic piece is connected with the sliding piece; the connecting conductor is connected with the sliding piece; the first electrode is connected to a first end of the connection conductor; the second electrode is connected to a second end of the connection conductor.

Optionally, a groove is formed in the base, and the sliding member is slidably connected to the groove.

Optionally, a sliding groove is formed in the inner side wall of the groove, a sliding block is arranged on the sliding part, and the sliding block can slide in the sliding groove.

Optionally, the first electrode is welded to the connection conductor.

Optionally, the second electrode is welded to the connection conductor.

Optionally, the trip device further includes an arc blocking assembly, the arc blocking assembly is disposed between the first electrode and the second electrode, and the arc blocking assembly is used for blocking the connecting conductor and the second electrode after the circuit is broken.

Optionally, the arc blocking assembly comprises an arc blocking member and a second elastic member, a first end of the arc blocking member is located below the connecting conductor, a second end of the arc blocking member is connected with a first end of the second elastic member, and the arc blocking member can move along a direction perpendicular to the movement direction of the sliding member.

Optionally, the arc blocking member includes a columnar portion and a plate portion connected to each other, and the plate portion abuts against the first end of the second elastic member.

Optionally, the trip device further includes a housing, the housing is connected to the base, and the second end of the second elastic member is connected to the housing.

The application also provides a surge protector, which comprises the tripping device.

The application provides a trip gear and surge protector's beneficial effect lies in: compared with the prior art, the tripping device is provided with the connecting conductor for connecting the first electrode and the second electrode, the connecting conductor is arranged on the sliding part, the sliding part can slide on the seat body, and the first elastic part is arranged to connect the seat body and the sliding part; when the device is degraded, the leakage current is increased, the device continuously generates heat, the first electrode and the second electrode generate heat due to heat conduction, when the heating temperature reaches a preset value, the first electrode and the second electrode are respectively broken off from the connecting conductor, the sliding part is pulled to slide relative to the base under the action of the tensile force of the first elastic part, the connecting conductor is driven to move, and in the moving process, the connecting conductor is separated from the second electrode, so that the breaking of a circuit is realized. This application is through setting up first elastic component connecting sliding part, can be fast when surge protector inefficacy or degradation break off with the electric wire netting, and response speed is fast, and the good reliability has avoided causing the conflagration to take place because of surge protector short circuit.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic perspective view of a trip device according to an embodiment of the present application;

fig. 2 is a schematic perspective view of a trip device according to a second embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of the trip device according to the embodiment of the present application when the circuit is connected;

fig. 4 is a schematic structural diagram of a trip device according to an embodiment of the present application when a circuit is disconnected;

fig. 5 is a schematic perspective view of a seat body in the release device according to the embodiment of the present disclosure;

fig. 6 is a schematic perspective view of a sliding member in a release device according to an embodiment of the present disclosure;

fig. 7 is a schematic perspective view of a connection conductor in a trip device according to an embodiment of the present application;

fig. 8 is a schematic perspective view of a first electrode or a second electrode in a trip device provided in an embodiment of the present application;

fig. 9 is a schematic perspective view of an arc blocking member in a tripping device according to an embodiment of the present application.

Wherein, in the figures, the respective reference numerals:

100-a seat body; 101-a groove; 102-a chute; 103-avoidance grooves; 104-a first connection;

200-a slide; 201-a slide block; 202-a second connection;

300-a first resilient member;

400-a connection conductor; 401-a first straight portion; 402-a second straight portion;

500-a first electrode; 501-a mating hole;

600-a second electrode;

700-an arc stop assembly; 701-an arc blocking piece; 711-columnar part; 712-a plate-like portion; 702-a second elastic member.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application 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 present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the application and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be constructed in operation as a limitation of the application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 9 together, a trip device and a surge protector according to an embodiment of the present application will now be described. The tripping device is used for a surge protector and comprises a base body 100, a sliding part 200, a first elastic part 300, a connecting conductor 400, a first electrode 500 and a second electrode 600; the sliding member 200 is slidably connected to the base 100; a first end of the first elastic member 300 is connected to the base 100, and a second end of the first elastic member 300 is connected to the sliding member 200; the connecting conductor 400 is connected to the slider 200; the first electrode 500 is connected to a first end of the connection conductor 400; the second electrode 600 is connected to the second end of the connection conductor 400. Specifically, the first elastic member 300 may employ a spring.

Compared with the prior art, in the trip device provided by the embodiment of the present application, the connection conductor 400 connecting the first electrode 500 and the second electrode 600 is provided, the connection conductor 400 is mounted on the sliding member 200, the sliding member 200 can slide on the base 100, and the first elastic member 300 is provided to connect the base 100 and the sliding member 200; when the device is degraded, the leakage current is increased, the device continuously generates heat, due to heat conduction, the first electrode 500 and the second electrode 600 generate heat, when the heating temperature reaches a preset value, the connection part of the first electrode 500 and the connection conductor 400 and the connection part of the second electrode 600 and the connection conductor 400 are fused due to high temperature, under the action of the tensile force of the first elastic piece 300, the sliding piece 200 is pulled to slide relative to the seat body 100, so that the connection conductor 400 is driven to move, and in the moving process, the connection conductor 400 is separated from the second electrode 600, so that the disconnection of a circuit is realized.

In an embodiment of the present application, referring to fig. 1 and fig. 5, a groove 101 is formed on the seat body 100, and the sliding member 200 is slidably connected to the groove 101. The groove 101 is formed in the base body 100, so that the sliding part 200 slides in the groove 101, the overall size of the base body 100 and the sliding part 200 after assembly can be reduced, the structure is compact, and the miniature design of a tripping device is facilitated.

In an embodiment of the present application, please refer to fig. 1, fig. 5 and fig. 6, a sliding groove 102 is disposed on an inner side wall of the groove 101, a sliding block 201 is disposed on the sliding member 200, and the sliding block 201 can slide in the sliding groove 102 along a length direction of the sliding groove 102. It can be understood that the two opposite inner side walls of the groove 101 are provided with the sliding grooves 102, and correspondingly, the two symmetrical side surfaces of the sliding member 200 are also provided with the sliding blocks 201. Through the arrangement of the sliding block 201 matched with the sliding groove 102, the stability of the relative motion between the sliding part 200 and the seat body 100 can be ensured, and the phenomenon of locking of the sliding part 200 in the moving process can be effectively avoided.

In the embodiment of the present application, the sliding block 201 may be a structure protruding from the side surface of the sliding member 200, and may have a cylindrical shape, as shown in fig. 6. The sliding block 201 is of a cylindrical structure, so that the sliding block 201 is in line contact with the sliding groove 102, the contact area is greatly reduced, and the frictional resistance between the sliding block 201 and the sliding groove 102 is effectively reduced. Furthermore, lubricating oil or grease can be applied to the inner wall of the sliding groove 102 and the outer wall of the sliding block 201 to reduce the resistance of the relative movement between the sliding block 200 and the base 100, thereby improving the smoothness of the movement.

In another embodiment of the present application, the sliding groove 102 may be opened on the outer side wall of the sliding member 200, and the sliding block 201 is disposed on the inner side wall of the groove 101, which also enables the sliding member 200 to slide in the groove 101 of the seat body 100.

In an embodiment of the present application, referring to fig. 5, the base 100 is provided with a first connecting portion 104 protruding from a surface of the base 100, and the first connecting portion 104 is connected to a first end of the first elastic element 300. Referring to fig. 6, the sliding member 200 has a second connecting portion 202 protruding from the surface of the sliding member 200, and the second connecting portion 202 is connected to the second end of the first elastic member 300.

In one embodiment of the present application, referring to fig. 7, the connection conductor 400 is an L-shaped plate including a first flat portion 401 and a second flat portion 402 perpendicular to each other; the first straight portion 401 is connected to the first electrode 500 and the second electrode 600, respectively; an avoiding groove 103 is formed at the bottom of the groove 101 of the base 100, as shown in fig. 5, the avoiding groove 103 is in a long strip shape, and the second straight portion 402 of the connecting conductor 400 can pass through the avoiding groove 103 to be connected with the sliding member 200.

In one embodiment of the present application, the first electrode 500 is welded with the connection conductor 400. Specifically, referring to fig. 8, a fitting hole 501 is formed in the first electrode 500, the shape of the fitting hole 501 of the first electrode 500 is matched with the cross-sectional shape of the connecting conductor 400, the first flat portion 401 of the connecting conductor 400 can pass through the fitting hole 501 of the first electrode 500, the first electrode 500 and the connecting conductor 400 are welded by using low-temperature solder (for example, tin solder, nickel-based solder, and the like), and when the temperature of the first electrode 500 rises to a preset temperature, the low-temperature solder melts to disconnect the first electrode 500 from the connecting conductor 400.

In one embodiment of the present application, the second electrode 600 is welded to the connection conductor 400. The structure of the second electrode 600 is the same as that of the first electrode 500, the second electrode 600 is provided with a matching hole 501, the shape of the matching hole 501 of the second electrode 600 is matched with the cross-sectional shape of the connecting conductor 400, the first flat part 401 of the connecting conductor 400 can pass through the matching hole 501 of the second electrode 600, the second electrode 600 and the connecting conductor 400 are welded by low-temperature solder (such as tin solder, brazing solder, nickel-based solder and the like), and when the temperature of the second electrode 600 is increased to a preset temperature, the low-temperature solder is melted to disconnect the second electrode 600 from the connecting conductor 400.

In an embodiment of the present application, referring to fig. 1 to 4, the trip device further includes an arc blocking assembly 700, the arc blocking assembly 700 is disposed between the first electrode 500 and the second electrode 600, and the arc blocking assembly 700 is used for blocking the connecting conductor 400 and the second electrode 600 after the circuit is broken. By providing the arc stop assembly 700, the arc can be prevented from reigniting after the circuit is opened.

In an embodiment of the present application, referring to fig. 2 to 4 together, the arc blocking assembly 700 includes an arc blocking member 701 and a second elastic member 702, a first end of the arc blocking member 701 is located below the first flat portion 401 of the connecting conductor 400, a second end of the arc blocking member 701 is connected to a first end of the second elastic member 702, and the arc blocking member 701 can move along a direction perpendicular to the moving direction of the sliding member 200 under the pushing force of the second elastic member 702.

In one embodiment of the present application, the trip device further includes a housing (not shown), the housing is connected to the housing 100, and the second end of the second elastic member 702 is connected to the housing. The second elastic member 702 employs a spring. Referring to fig. 9, the arc blocking member 701 includes a column portion 711 and a plate portion 712 connected to each other, a step structure is formed at a connection position of the column portion 711 and the plate portion 712, the second elastic member 702 is sleeved on the column portion 711, a first end of the second elastic member 702 abuts against the step structure, and a second end of the second elastic member 702 is connected to the housing; the plate-like portion 712 of the arc stop 701 serves to isolate the thermally conductive connection from the second electrode 600.

The application also provides a surge protector, which comprises the tripping device. The surge protection device can be quickly disconnected from a power grid when the surge protection device fails or is deteriorated, and fire disasters caused by short circuit of the surge protection device are avoided.

The working principle of the tripping device in the surge protector provided by the embodiment of the application is as follows:

when the surge protector is in good performance, the circuit in the surge protector is in a connected state, and as shown in fig. 3, the first electrode 500 and the second electrode 600 are connected to the connecting conductor 400, respectively, and at this time, the first elastic member 300 is in a stretched state, the second elastic member 702 is in a compressed state, and the arc stopper 701 abuts against the first flat portion 401 of the connecting conductor 400.

When the surge protection device is degraded, the leakage current is increased, the surge protection device continuously generates heat, due to the action of heat conduction, the first electrode 500 and the second electrode 600 generate heat, when the heating temperature reaches a preset value, the connection part of the first electrode 500 and the connection conductor 400 and the connection part of the second electrode 600 and the connection conductor 400 are fused due to high temperature, under the action of the tensile force of the first elastic piece 300, the sliding piece 200 is pulled to slide relative to the base body 100, the connection conductor 400 is driven to move, and in the moving process of the connection conductor 400, the connection conductor 400 is separated from the second electrode 600, so that the disconnection of a circuit is realized.

When the connecting conductor 400 continues to move under the pulling force of the first elastic member 300 and moves to the position shown in fig. 4, the connecting conductor 400 is released from restraining the arc blocking member 701, and the arc blocking member 701 moves upward under the elastic force of the second elastic member 702, so that the arc blocking member 701 can isolate the connecting conductor 400 from the second electrode 600, and the arc can be extinguished as soon as possible.

Compared with the prior art, the surge protection device provided by the embodiment of the application is provided with the tripping device, the first elastic piece 300 is arranged in the tripping device to be connected with the sliding piece 200, the surge protection device can be quickly disconnected from a power grid when the surge protection device fails or is deteriorated, the response speed is high, the reliability is high, and the fire disaster caused by the short circuit of the surge protection device is avoided.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A trip device, comprising:

a base body;

the sliding part is connected to the seat body in a sliding manner;

the first end of the first elastic piece is connected with the base body, and the second end of the first elastic piece is connected with the sliding piece;

a connecting conductor connected with the slider;

a first electrode connected to a first end of the connection conductor; and

a second electrode connected with a second end of the connection conductor.

2. The trip unit of claim 1, wherein the housing defines a recess, and the slider is slidably coupled to the recess.

3. The trip unit of claim 2, wherein the recess has a slot in an inner sidewall thereof, and the slider has a slider that is slidable in the slot.

4. The trip unit of claim 1, wherein said first electrode is welded to said connecting conductor.

5. The trip unit of claim 1, wherein the second electrode is welded to the connecting conductor.

6. The trip unit of claim 1, further comprising an arc blocking assembly disposed between the first electrode and the second electrode, the arc blocking assembly configured to block the connecting conductor from the second electrode after a circuit break.

7. The trip unit of claim 6, wherein said arc stop assembly comprises an arc stop member and a second resilient member, a first end of said arc stop member being positioned below said linking conductor, a second end of said arc stop member being connected to a first end of said second resilient member, said arc stop member being movable in a direction perpendicular to the direction of movement of said slider.

8. The trip unit of claim 7, wherein said arc blocking member comprises a post portion and a plate portion connected to each other, said plate portion abutting a first end of said second resilient member.

9. The trip unit of claim 7 or 8, further comprising a housing, wherein the housing is coupled to the housing, and wherein the second end of the second resilient member is coupled to the housing.

10. A surge protector device comprising a trip unit according to any of claims 1-9.

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