CN213906281U - Arc extinguishing type short circuit protection device - Google Patents

Abstract

The utility model discloses an arc extinguishing formula short-circuit protection device, arc extinguishing formula short-circuit protection device includes short-circuit protection device body, protective housing, coupling assembling, the short-circuit protection device body sets up inside the protective housing, plays the effect of cutting off circuit and sending out the police dispatch newspaper, the protective housing sets up in coupling assembling the place ahead, plays the effect of protection short-circuit protection device body, coupling assembling sets up on working plane, with the protective housing is connected, plays centre gripping short-circuit protection device body, connects protective housing and working plane's effect. The utility model discloses a set up the ejector pin outside arc extinguishing formula short-circuit protection device is originally external, screw out through precession the ejector pin to the realization is to arc extinguishing formula short-circuit protection device's installation and dismantlement, and then reaches technical effect such as installation dismantlement convenience, strong adaptability, protection nature are good.

Description

Arc extinguishing type short circuit protection device

Technical Field

The utility model belongs to the technical field of electronic circuit's technique and specifically relates to an arc extinguishing formula short-circuit protection device.

Background

A short-circuit fault is one of the serious faults occurring in the circuit a greater number of times. Since the short-circuit current can reach several times or even tens of times of the normal working current, excessive heat is generated, which leads to damage of the insulating parts, burning of the equipment and even fire. The strong short-circuit current also generates huge electric power, which may cause mechanical damage to the equipment, and at the same time, the voltage drop at the short-circuit point is zero, so that the ambient voltage is significantly reduced, and the ambient equipment cannot normally operate. Therefore, once a short-circuit fault occurs, it is necessary to protect the fault quickly from further expansion of the fault.

The protection measure which is more common at present is to add a protector on a circuit. However, in a general protector, when an electric circuit is broken, an arc spark is generated, which is likely to cause a fire of a small size and increase a loss. Accordingly, arc extinguishing type short circuit protectors are becoming popular.

Chinese patent (CN205646769U) discloses an arc extinction type short-circuit protection device special for an electrified circuit, which comprises a combination device, a CPU, a driver, an LCD liquid crystal display module, a buzzer, a communicator and an AO transformer, wherein a power supply, the combination device, the CPU, the driver, the LCD liquid crystal display module, the communicator and the AO transformer are all installed in a shell of the arc extinction type short-circuit protection device, the CPU sends an instruction signal by electrifying the power supply, and the combination device, the CPU, the LCD liquid crystal display module, the buzzer, the communicator and the AO transformer complete the tasks of monitoring in real time and cutting off the short-circuit by receiving an instruction.

Although above-mentioned patent has been compromise and has been solved the problem that produces the electric arc spark when protector cut-off circuit, nevertheless directly install short-circuit protection device on working plane, neither do not do benefit to the change and dismantle, also do not benefit to and protect short-circuit protection device.

Therefore, how to provide an arc-extinguishing short-circuit protection device, which can protect the arc-extinguishing short-circuit protection device body and simplify the operation steps of installation and disassembly is a technical problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, an object of the present application is to provide an arc-extinguishing short-circuit protection device, which is configured with a push rod outside the arc-extinguishing short-circuit protection device body, and the push rod is screwed in and out through screwing in, so as to implement installation and disassembly of the arc-extinguishing short-circuit protection device, and further achieve the technical effects of convenient installation and disassembly, strong adaptability, good protection performance, and the like.

In order to achieve the above purpose, the present application provides the following technical solutions:

the utility model provides an arc extinguishing formula short-circuit protection device, includes short-circuit protection device body, protective housing, coupling assembling, the short-circuit protection device body sets up inside the protective housing, plays the effect of cutting off circuit and sending out the police dispatch newspaper, the protective housing sets up in coupling assembling the place ahead, plays the effect of protection short-circuit protection device body, coupling assembling sets up on the working plane, with the protective housing is connected, plays centre gripping short-circuit protection device body, connects protective housing and working plane's effect.

The short-circuit protection device body comprises a display panel, an indicator lamp, a button, a buzzer and a warning lamp, wherein the display panel is arranged at the middle of the short-circuit protection device body, the indicator lamp is arranged on the right side of the display panel, the button is arranged below the display panel, the buzzer and the warning lamp are arranged above the display panel, and the buzzer and the warning lamp are arranged side by side in the left and right directions.

Further, the protective housing includes casing, recess, set screw, the casing adopts cuboid shell-shaped structure, the middle part of facade, back facade sets up the rectangle hole respectively before the cuboid shell-shaped structure, the size of hole with short-circuit protection device body looks adaptation, the inside rectangular sleeve that is provided with of casing, the edge connection of hole around rectangular sleeve's both ends respectively with the cuboid shell-shaped structure, and smooth coating is laid to rectangular sleeve's internal surface.

Furthermore, notches are respectively arranged on the vertical surfaces of the left side and the right side of the shell, the shape of each notch is semicircular, the size of each semicircle is consistent, and the central axes of the semicircles are overlapped.

Furthermore, the grooves are of a tubular structure with an opening in the front, the opening of the tubular structure is in a quarter circle shape, and the four grooves are respectively arranged at four corners of the front vertical surface of the shell.

Furthermore, the depth of the groove is consistent with the width of the shell, a round hole is formed in the rear vertical face of the groove, the outer diameter of the positioning screw is matched with the inner diameter of the round hole, and a gasket is arranged between the positioning screw and the round hole.

Coupling assembling includes connecting plate, limiting plate, ejector pin, spring, push pedal, the connecting plate sets up at the rear of short-circuit protection device body, is provided with the screw hole on four angles of connecting plate, the position of screw hole is unanimous with the round hole position on the recess, the shape with set screw looks adaptation.

Furthermore, limiting plate quantity is two, is connected with the connecting plate respectively, adopts the semicircular plate structure that has the screw hole, semicircular plate structure's cross sectional shape with the shape looks adaptation of breach on the casing, the ejector pin adopts threaded cylindrical structure, the external diameter of cylindrical structure and the internal diameter looks adaptation of screw hole on the limiting plate, the ejector pin is connected with the limiting plate through the screw hole that sets up on the limiting plate.

Further, the spring setting is in the central authorities of connecting plate, and one end is connected with the connecting plate, and the other end is connected with the push pedal, and the length under the natural extension state of spring is 1/5 ~ 2/5 of casing width, the push pedal adopts cuboid structural style, the cross sectional dimension of cuboid slightly is less than the cross sectional dimension of hole on the casing.

Preferably, the end of the ejector rod close to the outer side of the device is provided with cross patterns, and the end of the ejector rod close to the inner side of the device is provided with a spongy cushion.

The application has the advantages and effects as follows:

(1) the utility model discloses an among the arc extinction formula short-circuit protection device, adopt the mode of mechanical connection, through precession screw-out setting at the ejector pin of device both sides, realize the installation and the dismantlement of short-circuit protection device body, simplified arc extinction formula short-circuit protection device's installation and dismantlement operation greatly.

(2) The utility model discloses an among the arc extinguishing formula short-circuit protection device, coupling assembling can fix the optional position at circuit work plane, and the adjustment can be made according to the operational environment of difference to the shape of connecting plate, and extensive applicability is general.

(3) The utility model discloses an among the arc extinction formula short-circuit protection device, through the inside rectangle sleeve that sets up of casing places the short-circuit protection device body in the sleeve to form two-layer protection, improved arc extinction formula short-circuit protection device's protectiveness greatly.

The foregoing description is only an overview of the technical solutions of the present application, so that the technical means of the present application can be more clearly understood and the present application can be implemented according to the content of the description, and in order to make the above and other objects, features and advantages of the present application more clearly understood, the following detailed description is made with reference to the preferred embodiments of the present application and the accompanying drawings.

The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are 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 creative efforts. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a structural diagram of a short-circuit protection device body and a protection shell provided in an embodiment of the present application;

fig. 2 is a front view of a short-circuit protection device body and a protection shell provided in an embodiment of the present application;

fig. 3 is a front view of a connection assembly provided by an embodiment of the present application;

fig. 4 is a left side view of a connection assembly provided by an embodiment of the present application;

fig. 5 is a top view of a connection assembly provided in an embodiment of the present application.

Wherein, 1, short-circuit protection device body; 101. a display panel; 102. an indicator light; 103. a button; 104. a buzzer; 105. a warning light; 2. a protective shell; 201. a housing; 202. a groove; 203. a set screw; 3. a connecting assembly; 301. a connecting plate; 302. a limiting plate; 303. a top rod; 304. a spring; 305. a push plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. In the following description, specific details such as specific configurations and components are provided only to help the embodiments of the present application be fully understood. Accordingly, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, descriptions of well-known functions and constructions are omitted in the embodiments for the sake of clarity and conciseness.

It should be appreciated that reference throughout this specification to "one embodiment" or "the embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrase "one embodiment" or "the present embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, B exists alone, and A and B exist at the same time, and the term "/and" is used herein to describe another association object relationship, which means that two relationships may exist, for example, A/and B, may mean: a alone, and both a and B alone, and further, the character "/" in this document generally means that the former and latter associated objects are in an "or" relationship.

Further, the present application may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion.

Example 1

This embodiment mainly introduces the utility model discloses an arc extinguishing formula short-circuit protection device's basic composition and relation of connection.

The embodiment of the application provides a pair of arc extinguishing formula short-circuit protection device, including short-circuit protection device body 1, protective housing 2, coupling assembling 3, short-circuit protection device body 1 sets up inside protective housing 2, plays the effect of cutting off circuit and sending out the police dispatch newspaper, protective housing 2 sets up in coupling assembling 3 the place ahead, is connected with coupling assembling 3, plays the effect of protection short-circuit protection device body 1, coupling assembling 3 sets up on the working plane, is connected with short-circuit protection device body 1, plays centre gripping short-circuit protection device body 1, connects protective housing 2 and working plane's effect.

As shown in fig. 1, it shows the structure diagram of the short-circuit protection device body 1 and the protective housing 2, as shown in fig. 2, it shows the front view of the short-circuit protection device body 1 and the protective housing 2, with reference to fig. 1 and fig. 2, the short-circuit protection device body 1 includes a display panel 101, an indicator 102, a button 103, a buzzer 104, and a warning light 105, the display panel 101 is disposed in the middle of the short-circuit protection device body 1, the indicator 102 is disposed on the right side of the display panel 101, the button 103 is disposed below the display panel 101, the buzzer 104 and the warning light 105 are disposed above the display panel 101, and the buzzer 104 and the warning light 105 are arranged side by side in the left and right directions.

Further, protective housing 2 includes casing 201, recess 202, set screw 203, casing 201 adopts cuboid shell-shaped structure, the middle part of facade, back facade before the cuboid shell-shaped structure sets up the rectangle hole respectively, the size of hole with 1 looks adaptation of short-circuit protection device body, the inside rectangle sleeve that is provided with of casing 201, the both ends of rectangle sleeve respectively with the edge connection of cuboid shell-shaped structure front and back hole, smooth coating is laid to the telescopic internal surface of rectangle, form the gliding slide of short-circuit protection device body 1 of being convenient for.

Furthermore, notches are respectively arranged on the vertical surfaces of the left side and the right side of the shell 201, the notches are semicircular, the sizes of the semicircular notches are consistent, and the central axes of the semicircular notches are overlapped.

Further, the grooves 202 are tubular structures with openings in the front, the openings of the tubular structures are quarter circles, and the number of the grooves 202 is four, and the grooves are respectively arranged at four corners of the front vertical surface of the shell 201.

Further, the depth of the groove 202 is consistent with the width of the shell 201, a circular hole is formed in the rear vertical face of the groove 202, the outer diameter of the positioning screw 203 is matched with the inner diameter of the circular hole, and a gasket is arranged between the positioning screw 203 and the circular hole.

As shown in fig. 3, which shows a front view of the connection assembly 3, as shown in fig. 4, which shows a left side view of the connection assembly 3, as shown in fig. 5, which shows a top view of the connection assembly 3, in combination with fig. 3, fig. 4, and fig. 5, the connection assembly 3 includes a connection plate 301, a limiting plate 302, a push rod 303, a spring 304, and a push plate 305, the connection plate 301 is disposed behind the short-circuit protection device body 1, the connection plate 301 adopts a structure form of a rectangular parallelepiped, threaded holes are provided on four corners of the rectangular parallelepiped, the positions of the threaded holes are consistent with the positions of the round holes on the groove 202, and the shape of the threaded holes is matched with the positioning screws 203.

Further, limiting plate 302 quantity is two, is connected with connecting plate 301 respectively, adopts the semicircular plate structure who has the screw hole, semicircular plate structure's cross sectional shape with the shape looks adaptation of breach on the casing 201, ejector pin 303 adopts threaded cylindrical structure, the external diameter of cylindrical structure and the internal diameter looks adaptation of screw hole on the limiting plate 302, ejector pin 303 is connected with limiting plate 302 through the screw hole that sets up on limiting plate 302.

Further, spring 304 sets up in the central authorities of connecting plate 301, and one end is connected with connecting plate 301, and the other end is connected with push pedal 305, and the length under the natural extension state of spring 304 is 1/5 ~ 2/5 of casing 201 width, push pedal 305 adopts cuboid structural style, the cross sectional dimension of cuboid slightly is less than the cross sectional dimension of hole on the casing 201.

Preferably, the end of the ejector rod 303 close to the outer side of the device is provided with cross patterns, and the end of the ejector rod 303 close to the inner side of the device is provided with a spongy cushion.

It should be noted that the smooth coating is the prior art, and is not described in detail in this application.

Example 2

The present embodiment is based on the foregoing embodiment 1, and mainly introduces a principle of mounting and dismounting an arc-extinguishing type short-circuit protection device.

With reference to fig. 1 to 5, the arc extinguishing type short circuit protection device is installed by the following specific steps:

step 1: fixing the connecting plate 301 on a working plane;

step 2: the round hole on the groove 202 is superposed with the threaded hole on the connecting plate 301;

and step 3: the protective shell 2 is connected with the connecting plate 301 through a positioning screw 203;

and 4, step 4: pushing the short-circuit protection device body 1 into the shell 201, compressing the spring 304;

and 5: the push rods 303 at the two sides of the connecting component 3 are screwed in to clamp the short-circuit protection device body 1.

The arc extinguishing type short circuit protection device is disassembled by the following specific steps:

step 1: the ejector rods 303 at the two sides of the connecting component 3 are screwed out, the spring 304 extends, and a small part of the short-circuit protection device body 1 is pushed out of the shell 201 under the thrust action of the push plate 305;

step 2: the short-circuit protection device body 1 is taken out.

Therefore, the mounting and dismounting method of the arc-extinguishing type short-circuit protection device is realized.

The previous description of all disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides an arc extinguishing formula short-circuit protection device, its characterized in that, including short-circuit protection device body (1), protective housing (2), coupling assembling (3), short-circuit protection device body (1) sets up inside protective housing (2), plays the effect of cutting off circuit and giving out an alarm, protective housing (2) set up in coupling assembling (3) the place ahead, play the effect of protection short-circuit protection device body (1), coupling assembling (3) set up on the working plane, with protective housing (2) are connected, play centre gripping short-circuit protection device body (1), connect protective housing (2) and working plane's effect.

2. The arc extinguishing type short-circuit protection device of claim 1, wherein the short-circuit protection device body (1) comprises a display panel (101), an indicator lamp (102), a button (103), a buzzer (104) and a warning lamp (105), the display panel (101) is arranged in the middle of the short-circuit protection device body (1), the indicator lamp (102) is arranged on the right side of the display panel (101), the button (103) is arranged below the display panel (101), the buzzer (104) and the warning lamp (105) are arranged above the display panel (101), and the buzzer (104) and the warning lamp (105) are arranged side by side left and right.

3. The arc extinguishing type short circuit protection device according to claim 2, wherein the protection shell (2) comprises a shell (201), a groove (202) and a set screw (203), the shell (201) is of a cuboid shell-shaped structure, the middle parts of the front vertical surface and the rear vertical surface of the cuboid shell-shaped structure are respectively provided with a rectangular hole, the size of the hole is matched with the short circuit protection device body (1), a rectangular sleeve is arranged inside the shell (201), two ends of the rectangular sleeve are respectively connected with the edges of the front and rear holes of the cuboid shell-shaped structure, and the inner surface of the rectangular sleeve is laid with a smooth coating.

4. The arc extinguishing type short circuit protection device according to claim 3, wherein the left and right vertical surfaces of the shell (201) are respectively provided with a notch, the shape of the notch is semicircular, the size of the semicircular is consistent, and the central axes are coincident.

5. Arc quenching short-circuit protection device according to claim 4, characterized in that said recess (202) is of open-fronted tubular configuration, said tubular configuration opening being of quarter-circle shape, said recess (202) being four in number, disposed at each of the four corners of the frontal vertical face of said housing (201).

6. The arc extinguishing type short-circuit protection device as claimed in claim 5, wherein the depth of the groove (202) is consistent with the width of the shell (201), a circular hole is arranged on the rear vertical surface of the groove (202), the outer diameter of the positioning screw (203) is matched with the inner diameter of the circular hole, and a gasket is arranged between the positioning screw (203) and the circular hole.

7. The arc extinguishing type short-circuit protection device according to claim 3, wherein the connecting assembly (3) comprises a connecting plate (301), a limiting plate (302), a top rod (303), a spring (304) and a push plate (305), the connecting plate (301) is arranged behind the short-circuit protection device body (1), threaded holes are formed in four corners of the connecting plate (301), the positions of the threaded holes are consistent with the positions of round holes in the grooves (202), and the shapes of the threaded holes are matched with those of the positioning screws (203).

8. The arc extinguishing type short circuit protection device according to claim 7, wherein the number of the limiting plates (302) is two, the two limiting plates are respectively connected with the connecting plate (301), a semicircular plate structure with a threaded hole is adopted, the cross-sectional shape of the semicircular plate structure is matched with the shape of the notch on the shell (201), the ejector rod (303) is a threaded cylindrical structure, the outer diameter of the cylindrical structure is matched with the inner diameter of the threaded hole on the limiting plate (302), and the ejector rod (303) is connected with the limiting plate (302) through the threaded hole arranged on the limiting plate (302).

9. The arc quenching type short-circuit protection device as claimed in claim 8, wherein the spring (304) is arranged in the center of the connecting plate (301), one end of the spring is connected with the connecting plate (301), the other end of the spring is connected with the push plate (305), the length of the spring (304) in a natural extension state is 1/5-2/5 of the width of the shell (201), the push plate (305) adopts a cuboid structure form, and the cross-sectional dimension of the cuboid is slightly smaller than that of the hole in the shell (201).

10. Arc extinguishing type short circuit protection device according to claim 9, wherein the end of the ejector rod (303) near the outer side of the device is provided with a cross pattern, and the end of the ejector rod (303) near the inner side of the device is provided with a sponge pad.

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