CN213304053U

CN213304053U - Box-packed high-voltage arc-extinguishing fuse

Info

Publication number: CN213304053U
Application number: CN202022441607.7U
Authority: CN
Inventors: 李伟
Original assignee: Xi'an Green Power Technology Co ltd
Current assignee: Xi'an Green Power Technology Co ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-05-28
Anticipated expiration: 2030-10-28

Abstract

The utility model discloses a box-packed high voltage arc extinguishing fuse, which comprises a housin, the bottom upper surface both sides of casing are equipped with the pillar, and the top of pillar is equipped with places the board, the top surface intermediate position department of placing the board is equipped with insulating box, and insulating box's inside is equipped with the arc extinguishing sleeve pipe, the sheathed tube inside of arc extinguishing is equipped with the fuse. Has the advantages that: the utility model discloses a temperature sensor detects the temperature of fuse, when the temperature of fuse surpassed the temperature value that temperature sensor set for, at this moment temperature sensor is signal transmission controller, the heat dissipation fan is opened to the controller in time dispels the heat to the fuse, prevent that the fuse from in the twinkling of an eye of trouble or short circuit disconnection because of the high temperature explosion damage, can in time dispel the heat to the fuse, be favorable to prolonging the life of fuse, can effectively increase the circulation of air speed around the fuse through placing the louvre on the board, the radiating effect has further been improved, be convenient for protect the fuse.

Description

Box-packed high-voltage arc-extinguishing fuse

Technical Field

The utility model relates to a fuse technical field especially relates to a box-packed high pressure arc extinguishing fuse.

Background

The fuse is an electric appliance which fuses a melt by heat generated by itself to open a circuit when a current exceeds a predetermined value. The fuse melts the melt by the heat generated by the fuse after the current exceeds a specified value for a period of time, so as to cut off the circuit; a current protector is made by applying the principle. The fuse is widely applied to high-low voltage distribution systems, control systems and electric equipment, and is the most commonly applied protection device as a short circuit and overcurrent protector.

Present high-pressure arc extinguishing fuse has certain limitation when using, in the twinkling of an eye of trouble or short circuit disconnection, the fuse can produce great heat, if not in time dispel the heat to the fuse, the fuse is easy because of the high temperature explosion damage, influences the life of fuse easily, and current high-pressure arc extinguishing fuse is insecure when installing, leads to the problem that the fuse can take place to rock after the installation easily, and stability remains to be improved.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To prior art's not enough, the utility model provides a box-packed high pressure arc extinguishing fuse possesses and can in time dispel the heat to the fuse, prevents that the fuse from because of the high temperature takes place to explode and damage the phenomenon, is favorable to prolonging the life of fuse, and the high advantage of stability, and then solves the problem among the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model adopts the following technical scheme: a box-packed high-voltage arc-extinguishing fuse comprises a shell, wherein supporting columns are arranged on two sides of the upper surface of the bottom of the shell, a placing plate is arranged at the top ends of the supporting columns, an insulating box is arranged in the middle of the top surface of the placing plate, an arc-extinguishing sleeve is arranged inside the insulating box, a fuse is arranged inside the arc-extinguishing sleeve, connecting plates are arranged at two ends of the fuse, which penetrate through the two side surfaces of the insulating box, side plates are arranged on two sides of the top surface of the placing plate, a threaded rod is connected to one side surface of each side plate through a threaded hole, a limiting plate is arranged at one end of each threaded rod, fixing plates are arranged on two sides of the lower surface of the top of the shell, a bottom plate is arranged between the fixing plates, an inserting rod penetrates through the top surface of the bottom plate, a pressing plate is arranged at the, the bottom upper surface of casing is located and is equipped with the heat dissipation fan between the pillar, and one side of heat dissipation fan is equipped with the controller, the top surface of placing the board runs through and is equipped with the louvre, the bottom surface intermediate position department of placing the board is equipped with temperature sensor.

Preferably, the number of the heat dissipation fans is two, and the two heat dissipation fans are uniformly distributed on the upper surface and two sides of the bottom end of the shell.

Preferably, the heat dissipation holes are formed in the whole body, and the heat dissipation holes are evenly distributed on the top surface of the placing plate.

Preferably, the outer side surface of the inserted link is positioned below the bottom plate and is sleeved with a spring.

Preferably, the temperature sensor is electrically connected with the controller, and the controller is electrically connected with the heat dissipation fan through a wire.

Preferably, the placing plate is made of an insulating material.

Preferably, the supporting columns are arranged in a plurality, and the supporting columns are uniformly distributed on two sides of the upper surface of the bottom end of the shell in pairs.

Preferably, one end of the connecting piece penetrates through one side surface of the shell.

(III) advantageous effects

Compared with the prior art, the utility model provides a box-packed high pressure arc extinguishing fuse possesses following beneficial effect:

(1) the utility model discloses in, temperature sensor through setting up, a controller, the heat dissipation fan, place the board, the louvre, wherein detect the temperature of fuse through temperature sensor, when the temperature of fuse surpassed the temperature value that temperature sensor set for, at this moment temperature sensor is the signal transmission controller, open the heat dissipation fan immediately and in time dispel the heat to the fuse, prevent the fuse in the twinkling of an eye of trouble or short circuit disconnection because of the high temperature explosion damage, can in time dispel the heat to the fuse, the radiating effect is good, be favorable to prolonging the life of fuse, can effectively increase the circulation of air speed around the fuse through placing the louvre on the board, the radiating effect has further been improved, be convenient for protect the fuse.

(2) The utility model discloses in, through rotating threaded rod on the curb plate for the limiting plate of threaded rod one end and the mutual butt of a side surface of insulating box, can effectively install insulating box fixedly, to the fixed completion back of insulating box, inject insulating box top in the slot on the surface at the clamp plate through inserted bar one end, can further fix insulating box, be convenient for keep the stability of fuse in the insulating box, avoid after the installation because the installation insecure fuse that leads to in the insulating box takes place the problem of rocking, be favorable to improving its stability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only 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 diagram of the overall structure of a cartridge-type high-voltage arc-extinguishing fuse according to the present invention;

FIG. 2 is an enlarged view of the cartridge-type high-voltage arc-extinguishing fuse A according to the present invention;

fig. 3 is a schematic structural view of a placing plate of the box-packed high-voltage arc-extinguishing fuse.

Illustration of the drawings:

1. a housing; 2. an insulating case; 3. an arc extinguishing sleeve; 4. a fuse; 5. placing the plate; 6. a pillar; 7. a heat dissipation fan; 8. a controller; 9. a temperature sensor; 10. a side plate; 11. a threaded rod; 12. a limiting plate; 13. connecting sheets; 14. a fixing plate; 15. pressing a plate; 16. inserting a rod; 17. a base plate; 18. a spring; 19. heat dissipation holes; 20. and (4) a slot.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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 "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; 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.

Referring to fig. 1-3, a boxed high voltage arc extinguishing fuse comprises a housing 1, wherein two sides of the upper surface of the bottom end of the housing 1 are provided with support posts 6, the top ends of the support posts 6 are provided with a placing plate 5, the middle position of the top surface of the placing plate 5 is provided with an insulating box 2, the insulating box 2 is internally provided with an arc extinguishing sleeve 3, the arc extinguishing sleeve 3 is internally provided with a fuse 4, two ends of the fuse 4 penetrate through two side surfaces of the insulating box 2 and are provided with connecting pieces 13, the top surface of the placing plate 5 is provided with side plates 10 at two sides of the insulating box 2, one side surface of each side plate 10 is in threaded connection with a threaded rod 11 through a threaded hole, one end of each threaded rod 11 is provided with a limiting plate 12, two sides of the lower surface of the top end of the housing 1 are provided with fixing plates 14, a bottom plate 17 is arranged between the fixing, the pressing plate 15 is inserted into the inserting grooves 20 arranged on the two sides of the top surface of the insulating box 2, the heat dissipation fan 7 is arranged on the upper surface of the bottom end of the shell 1 and positioned between the supporting columns 6, the controller 8 is arranged on one side of the heat dissipation fan 7, the heat dissipation holes 19 are arranged on the top surface of the placing plate 5 in a penetrating manner, the temperature sensor 9 is arranged at the middle position of the bottom surface of the placing plate 5, the temperature of the fuse 4 is detected through the temperature sensor 9, when the temperature of the fuse 4 exceeds the temperature value set by the temperature sensor 9, the temperature sensor 9 sends a signal to the controller 8 at the moment, the heat dissipation fan 7 is opened by the controller 8 to dissipate heat of the fuse 4 in time, the fuse 4 is prevented from being exploded and damaged due to overhigh temperature at the moment of failure or short circuit disconnection, the heat dissipation holes of the fuse 4 can be dissipated in time, the heat dissipation effect is good, the service life of the, further improve the radiating effect, be convenient for protect fuse 4.

In one embodiment, there are two heat dissipation fans 7, and the two heat dissipation fans 7 are uniformly distributed on two sides of the upper surface of the bottom end of the housing 1, wherein the two heat dissipation fans 7 are arranged to quickly dissipate heat from the fuse 4, so as to improve the heat dissipation effect.

In one embodiment, the heat dissipation holes 19 are commonly provided in a plurality, and the plurality of heat dissipation holes 19 are uniformly distributed on the top surface of the placing plate 5, wherein the air circulation speed around the fuse 4 can be effectively increased by placing the heat dissipation holes 19 on the placing plate 5, thereby further improving the heat dissipation effect and facilitating the protection of the fuse 4.

In one embodiment, the outer surface of the plunger 16 is fitted under the bottom plate 17 with a spring 18, wherein the insulating case 2 can be further fixed by inserting the pressing plate 15 at one end of the plunger 16 into a slot 20 on the top surface of the insulating case 2, so as to maintain the stability of the fuse 4 in the insulating case 2.

In one embodiment, the temperature sensor 9 is electrically connected to the controller 8, and the controller 8 is electrically connected to the heat dissipation fan 7 through a wire, wherein the temperature of the fuse 4 is detected by the temperature sensor 9, when the temperature of the fuse 4 exceeds the temperature value set by the temperature sensor 9, the temperature sensor 9 sends a signal to the controller 8, the heat dissipation fan 7 is opened by the controller 8 to dissipate heat of the fuse 4 in time, so as to prevent the fuse 4 from being exploded and damaged due to overhigh temperature in the moment of failure or short circuit disconnection, and the heat of the fuse 4 can be dissipated in time.

In one embodiment, the placing plate 5 is made of an insulating material, and has a function of cutting off current, so as to protect the housing 1.

In one embodiment, the supporting columns 6 are provided in plurality, and the plurality of supporting columns 6 are distributed on two sides of the upper surface of the bottom end of the shell 1, wherein the placing plate 5 is supported by the supporting columns 6, which is beneficial to improving the stability of the placing plate 5.

In one embodiment, one end of the connecting piece 13 penetrates through one side surface of the housing 1 to facilitate connection.

The working principle is as follows:

when the insulating box is used, firstly, the threaded rod 11 on the side plate 10 is rotated, the limiting plate 12 at one end of the threaded rod 11 is abutted against one side surface of the insulating box 2, the insulating box 2 can be effectively installed and fixed, after the insulating box 2 is fixed, the pressing plate 15 at one end of the inserting rod 16 is inserted into the slot 20 on the top surface of the insulating box 2, the insulating box 2 can be further fixed, the stability of the fuse 4 in the insulating box 2 is convenient to maintain, the problem that the fuse 4 in the insulating box 2 shakes due to instable installation after installation is avoided, the stability of the fuse 4 is favorably improved, wherein the temperature of the fuse 4 is detected through the temperature sensor 9, when the temperature of the fuse 4 exceeds the temperature value set by the temperature sensor 9, the temperature sensor 9 transmits a signal to the controller 8, and then the controller 8 opens the heat dissipation fan 7 to timely dissipate heat of the fuse 4, prevent fuse 4 because of the high temperature explosion damage in the twinkling of an eye of trouble or short circuit disconnection, can in time dispel the heat to fuse 4, the radiating effect is good, is favorable to prolonging fuse 4's life, can effectively increase the circulation of air speed around fuse 4 through the louvre 19 of placing on the board 5, has further improved the radiating effect, is convenient for protect fuse 4.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A box-packed high-voltage arc-extinguishing fuse comprises a shell (1) and is characterized in that supporting columns (6) are arranged on two sides of the upper surface of the bottom of the shell (1), a placing plate (5) is arranged on the top end of each supporting column (6), an insulating box (2) is arranged in the middle position of the top surface of the placing plate (5), an arc-extinguishing sleeve (3) is arranged inside the insulating box (2), a fuse (4) is arranged inside the arc-extinguishing sleeve (3), connecting pieces (13) are arranged on the surfaces of two sides, penetrating through the insulating box (2), of two ends of the fuse (4), of the top surface of the placing plate (5), of two sides, located on the insulating box (2), of the top surface of the placing plate (5), are respectively provided with a side plate (10), one side surface of each side plate (10) is connected with a threaded rod (11) through threaded holes, one end of each threaded rod (11) is provided with, and be equipped with between fixed plate (14) bottom plate (17), the top surface of bottom plate (17) runs through and is equipped with inserted bar (16), and the bottom of inserted bar (16) is equipped with clamp plate (15), clamp plate (15) are pegged graft in slot (20) that insulating box (2) top surface both sides set up, the bottom upper surface of casing (1) is located and is equipped with heat dissipation fan (7) between pillar (6), and one side of heat dissipation fan (7) is equipped with controller (8), the top surface of placing board (5) runs through and is equipped with louvre (19), the bottom surface intermediate position department of placing board (5) is equipped with temperature sensor (9).

2. A cartridge-type high-voltage arc-extinguishing fuse according to claim 1, characterised in that there are two heat-dissipating fans (7), and the two heat-dissipating fans (7) are evenly distributed on both sides of the upper surface of the bottom end of the housing (1).

3. A boxed high-voltage arc-extinguishing fuse according to claim 1, characterised in that the number of said dissipating holes (19) is multiple and the plurality of dissipating holes (19) are evenly distributed on the top surface of the resting plate (5).

4. A cartridge-type high-voltage arc-extinguishing fuse according to claim 1, characterised in that the outer surface of the plunger (16) is fitted with a spring (18) under the base plate (17).

5. A cartridge-type high-voltage arc-extinguishing fuse according to claim 1, characterised in that the temperature sensor (9) is electrically connected to the controller (8), and the controller (8) is electrically connected to the heat-dissipating fan (7) by means of a wire.

6. A boxed high-voltage arc-extinguishing fuse according to claim 1, characterised in that the resting plate (5) is of insulating material.

7. A cartridge-type high-voltage arc-extinguishing fuse according to claim 1, characterised in that a plurality of said supporting posts (6) are provided, and the plurality of supporting posts (6) are evenly distributed on both sides of the bottom upper surface of the housing (1) in pairs.

8. A cartridge-type high-voltage arc extinguishing fuse according to claim 1, wherein one end of the connecting piece (13) penetrates one side surface of the housing (1).