CN216716139U

CN216716139U - A disappear and dodge device for single fire intelligence switch

Info

Publication number: CN216716139U
Application number: CN202123276895.6U
Authority: CN
Inventors: 苗祥垚; 王建明; 隆祥华; 翟建光
Original assignee: Qingdao Haier Intelligent Home Appliance Technology Co Ltd
Current assignee: Qingdao Haier Intelligent Home Appliance Technology Co Ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-06-10
Anticipated expiration: 2031-12-23

Abstract

The application relates to the technical field of intelligent home furnishing, and discloses a flash eliminating device for a single-fire intelligent switch, which comprises a shell, wherein the shell is provided with a first installation part and a second installation part, the first installation part is used for being connected with a lamp holder, and the second installation part is used for being connected with a lamp; the circuit board is arranged in the shell and is electrically connected with the first mounting part and the second mounting part respectively; when the first installation part is connected with the lamp holder and the second installation part is connected with the lamp, the circuit board is connected with the lamp in parallel, and after the single-fire intelligent switch controls the lamp to be in an extinguishing state, the circuit board bypasses the lamp. The utility model discloses a disappear and dodge device for single fire intelligence switch can solve and still can have the problem of lamps and lanterns scintillation after lamps and lanterns extinguish, simple structure simultaneously, and convenient to use need not reequip the circuit, and then can avoid reequiping danger and the complexity that brings to the circuit.

Description

A disappear and dodge device for single fire intelligence switch

Technical Field

The application relates to the technical field of intelligent home, for example, to a flash extinguishing device for a single-fire intelligent switch.

Background

Along with the development of the intelligent home industry, the household intelligent switch is more and more popular. The household intelligent switch is divided into a zero-fire intelligent switch and a single-fire intelligent switch. For a single-fire intelligent switch, when the single-fire intelligent switch controls a lamp, weak current always exists in a circuit to maintain normal operation of the switch. When the lamp is extinguished, the current value is instantly increased due to the fact that the single-fire intelligent switch needs to process a certain task, and when the instant current is larger than the lighting current value of the lamp, the lamp can be lighted; when the task processing is completed, the current value is recovered to be smaller than the lighting current value of the lamp, and the lamp is turned off. Therefore, the phenomenon of lamp flickering can also occur when the lamp is extinguished by using the single-fire intelligent switch.

In order to avoid the problem of flickering of the extinguished lamp, in the prior art, a circuit is usually modified, and a capacitor or a resistor is connected in parallel to the lamp, so that the problem that the lamp flickers after the lamp is controlled to be extinguished by the single-fire intelligent switch is solved.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the manner in which the lines are retrofitted is somewhat hazardous and complex.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a flash extinguishing device for a single-fire intelligent switch, so as to avoid danger and complexity caused by modification of a circuit.

In some embodiments, the flash extinguishing device comprises: the lamp comprises a shell, a lamp holder and a lamp body, wherein the shell is provided with a first installation part and a second installation part, the first installation part is used for being connected with the lamp holder, and the second installation part is used for being connected with the lamp; the circuit board is arranged in the shell and is electrically connected with the first mounting part and the second mounting part respectively; when the first installation part is connected with the lamp holder and the second installation part is connected with the lamp, the circuit board is connected with the lamp in parallel, and after the single-fire intelligent switch controls the lamp to be in an extinguishing state, the circuit board bypasses the lamp.

The control circuit of the single-fire intelligent switch directly gets electricity through a live wire, a return circuit is formed through a zero line connected with the lamp, and the lamp has current flowing, namely, the return circuit is formed. Because a variable resistor is integrated in the single-fire intelligent switch and is connected with the lamp in series, the on and off of the lamp are often controlled by adjusting the resistor. When the resistance is adjusted to be large, the lamp is extinguished, the circuit is close to the open circuit at the moment, but the circuit is not open, and the tiny current still exists in the circuit to supply power for the functional module in the single-fire intelligent switch. When the resistance is adjusted to be small, the lamp is turned on. Because the small current still exists after the lamps and lanterns extinguish, therefore the single fire intelligence switch control lamps and lanterns extinguish the back, can appear twinkling often, the phenomenon of "ghost fire". In order to avoid the occurrence of the phenomenon of 'ghost fire' in the process of using the single-fire intelligent switch, the lightning arrester provided by the embodiment of the disclosure is used, the first installation part on the shell is installed on the lamp holder, and then the lamp is installed on the second installation part. The anti-flashing device is simple in structure and convenient to use, and does not need to be modified, so that the danger and complexity caused by modification of the line are avoided. Meanwhile, the phenomenon that the whole attractiveness of interior decoration is damaged due to the fact that the line is modified is avoided.

In some embodiments, the housing comprises: the first end of the first shell is provided with the first mounting part; the first end of the second shell is connected to the second end of the first shell, and a second mounting part is arranged at the second end of the second shell; wherein the circuit board is disposed between the first housing and the second housing.

In some embodiments, the first end of the first housing is outwardly configured with a boss to which the first mounting portion is secured.

In some embodiments, the second end of the second housing is configured with a groove inwardly, the groove mating with the second mounting portion, the second mounting portion being secured within the groove.

In some embodiments, the bottom of the groove is opened with an opening; the flash extinguishing device further comprises: one end of the metal sheet is fixed at the bottom of the groove, and the other end of the metal sheet is bent and extends out of the opening to abut against the circuit board.

In some embodiments, the first end of the first housing is configured with a first fixing portion inwardly, and the second end of the first housing is open; the first end of the second shell is open, a second fixing part is inwardly constructed at the position, corresponding to the first fixing part, of the second end of the second shell, and the second fixing part extends to the first fixing part through the opening; the first fixing part is matched with the second fixing part, so that the first shell is fixedly connected with the second shell, and the circuit board is fixed between the first shell and the second shell through the first fixing part and the second fixing part.

In some embodiments, a first screw hole is formed in the bottom end of the first fixing portion, a second screw hole is formed in a position, corresponding to the first screw hole, of the second fixing portion, a third screw hole is formed in a position, corresponding to the second screw hole, of the circuit board, and the first shell, the circuit board and the second shell are sequentially fastened and connected through screws.

In some embodiments, the number of the first fixing portion and the second fixing portion is plural.

In some embodiments, the edge portion of the first housing is configured with a first edge, the edge portion of the second housing is configured with a second edge, and the second edge is matched with the first edge, wherein when the second housing is connected to the first housing, the second edge is engaged with the first edge.

In some embodiments, the first mounting portion and the second mounting portion are both made of metal.

The utility model provides a flash device that disappears for single fire intelligence switch that this disclosed embodiment provided can realize following technological effect:

the utility model provides a be provided with first installation department and second installation department on the casing that is used for single fire intelligence switch's flashing device that disappears that this disclosed embodiment provided, at the inside circuit board that is provided with of casing, and the circuit board is connected with first installation department and second installation department electricity. When the flash eliminating device is used, the first installation part of the flash eliminating device is installed on the lamp holder, and then the lamp is installed on the first installation part. Therefore, after the single-fire intelligent switch controls the lamp to be in the extinguishing state, the circuit board of the flash eliminating device bypasses the lamp, and the problem that the lamp flickers after the lamp is extinguished is solved.

The lightning arrester for the intelligent single-fire switch provided by the embodiment of the disclosure has the advantages of simple structure, convenience in use, and no need of modifying the line, so that the danger and the complexity caused by modifying the line can be avoided.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a schematic structural diagram of a lightning arrester for a single-fire intelligent switch according to an embodiment of the present disclosure;

FIG. 2 is a schematic cross-sectional view of a flash extinguishing device for a single-fire intelligent switch according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a first housing provided in the embodiments of the present disclosure;

fig. 4 is a schematic structural diagram of another first housing provided in the embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a second housing provided in accordance with embodiments of the present disclosure;

fig. 6 is a schematic structural diagram of another second housing provided in the embodiment of the present disclosure;

FIG. 7 is an exploded view of a flash extinguishing device for a single fire intelligent switch according to an embodiment of the present disclosure;

FIG. 8 is a state diagram of a flash extinguishing device for a single-fire intelligent switch according to an embodiment of the present disclosure;

fig. 9 is a circuit diagram of a flash extinguishing device for a single-fire intelligent switch provided by an embodiment of the disclosure in a use state.

Reference numerals:

100: a flash eliminating device; 110: a first housing; 111: a boss; 112: a first mounting portion; 113: a first fixed part; 114: a first clamping edge; 120: a second housing; 121: a groove; 122: a second mounting portion; 123: a second fixed part; 124: a second card edge; 125: an opening; 130: a circuit board; 140: a metal sheet; 150: a screw;

200: a light fixture;

300: a lamp holder:

400: a wall body;

500: a zero line;

600: a live line;

700: single fire intelligence switch.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

Referring to fig. 1 to 9, an embodiment of the present disclosure provides a flash extinguishing device 100 for a single-fire intelligent switch 700, which includes a housing, the housing is provided with a first installation portion 112 and a second installation portion 122, the first installation portion 112 is used for connecting with a lamp socket 300, and the second installation portion 122 is used for connecting with a lamp 200; a circuit board 130 disposed in the housing, wherein the circuit board 130 is electrically connected to the first mounting portion 112 and the second mounting portion 122; when the first installation part 112 is connected to the lamp holder 300 and the second installation part 122 is connected to the lamp 200, the circuit board 130 is connected in parallel to the lamp 200, and after the single-fire intelligent switch 700 controls the lamp 200 to be in an off state, the circuit board 130 bypasses the lamp 200.

The control circuit of the single-live intelligent switch 700 directly gets electricity through the live wire 600, a loop is formed through the zero wire 500 connected with the lamp 200, and the lamp 200 has current flowing through, namely, the loop is formed. Since the single-fire intelligent switch 700 has a variable resistor integrated therein and is connected in series with the lamp 200, the on and off of the lamp 200 are often controlled by adjusting the resistor. When the resistance is adjusted to be large, the lamp 200 is extinguished, and at this time, the circuit is close to the open circuit, but not the open circuit, and a small current still exists in the circuit to supply power to the functional module in the single-fire intelligent switch 700. When the resistance is turned small, the lamp 200 is turned on. Because the small current still exists after the lamp 200 is extinguished, the single-fire intelligent switch 700 controls the lamp 200 to be extinguished, and then the lamp often flickers, i.e. the phenomenon of 'ghost fire'.

In order to avoid the occurrence of the "ghost fire" phenomenon during the use of the single-fire intelligent switch 700, the housing of the flash arrester 100 for the single-fire intelligent switch 700 provided by the embodiment of the present disclosure is provided with the first mounting portion 112 and the second mounting portion 122, the circuit board 130 is arranged inside the housing, and the circuit board 130 is electrically connected with the first mounting portion 112 and the second mounting portion 122. When the flash arrester 100 is used, the first mounting portion 112 of the flash arrester 100 is mounted on the lamp socket 300 of the wall 400, and the lamp 200 is mounted on the first mounting portion 112. Thus, after the single-fire intelligent switch 700 controls the lamp 200 to be in the off state, the circuit board 130 of the flash extinguishing device 100 bypasses the lamp 200, thereby solving the problem that the lamp 200 flickers after the lamp 200 is off.

The lightning arrester 100 for the single-fire intelligent switch 700 provided by the embodiment of the disclosure has the advantages of simple structure, convenience in use, and no need of modifying the line, so that the danger and the complexity caused by modifying the line can be avoided. Meanwhile, the phenomenon that the whole attractiveness of interior decoration is damaged due to the fact that the line is modified is avoided.

Optionally, the housing includes a first housing 110 and a second housing 120, a first end of the first housing 110 is provided with a first mounting portion 112; a first end of the second housing 120 is connected to a second end of the first housing 110, and a second mounting portion 122 is disposed at the second end of the second housing 120; the circuit board 130 is disposed between the first housing 110 and the second housing 120.

The housing is divided into the first housing 110 and the second housing 120, and the circuit board 130 is disposed between the first housing 110 and the second housing 120, so that the circuit board 130 is fixed while the first housing 110 and the second housing 120 are fixed.

According to the lightning arrester 100 for the single-fire intelligent switch 700 provided by the embodiment of the disclosure, the first installation part 112 is used for being connected with the lamp holder 300, and the second installation part 122 is used for being connected with the lamp 200 in a threaded connection or a plug-in connection. The first attachment portion 112 of the flash arrester 100 is not particularly limited as long as it can be attached to the socket 300 and the lamp 200 can be attached to the second attachment portion 122.

Optionally, the first end of the first housing 110 is outwardly configured with a boss 111, and the first mounting portion 112 is fixed to the boss 111.

The mounting portion of the conventional lamp socket 300 is generally recessed inward, and based on this, a boss 111 is outwardly formed at the first end of the first housing 110, and the first mounting portion 112 is fixed to the boss 111. Thus, the first mounting part 112 can be conveniently mounted to the lamp socket 300. Meanwhile, a boss 111 is outwardly formed at the first end of the first housing 110, so that the fixing of the first mounting part 112 can be facilitated.

Optionally, a groove 121 is formed inward at the second end of the second housing 120, the groove 121 is matched with a second mounting portion 122, and the second mounting portion 122 is fixed in the groove 121.

The second end of the second housing 120 is formed with a groove 121 inward, and the second mounting portion 122 is fixed to the groove 121, so that the arrangement form of the lamp 200 can be matched, and the lamp 200 can be more stably mounted on the second mounting portion 122.

Optionally, the bottom of the groove 121 is opened with an opening 125; the anti-flash device 100 further includes a metal plate 140, one end of which is fixed at the bottom of the groove 121, and the other end of which is bent and extends out of the opening 125 to abut against the circuit board 130.

By forming the opening 125 at the bottom of the groove 121 of the second mounting portion 122, one end of the metal sheet 140 is fixed at the bottom of the groove 121, and the other end is bent and extends out of the opening 125 to abut against the circuit board 130. In this way, when the lamp 200 is mounted on the second mounting portion 122, the end of the lamp 200 abuts against the metal piece 140, and the lamp 200 is electrically connected to the circuit board 130. The metal sheet 140 is arranged at the bottom of the groove 121 of the second installation part 122 to electrically connect the lamp 200 with the circuit board 130, so that on one hand, the normal use of the lamp 200 is ensured, and on the other hand, after the single-fire intelligent switch 700 controls the lamp 200 to be in the extinguishing state, the circuit board 130 of the flash extinguishing device 100 bypasses the lamp 200, thereby solving the problem that the lamp 200 flickers after the lamp 200 is extinguished.

In the lightning arrester 100 for the single-fire intelligent switch 700 provided by the embodiment of the present disclosure, the metal sheet 140 is used to electrically connect the lamp 200 and the circuit board 130, and the fixing manner that the metal sheet 140 is fixed at the bottom of the groove 121 of the second mounting portion 122 is that the metal sheet 140 is fastened and glued by the screw 150, so long as the fixing of the metal sheet 140 can be realized, and the electrical connection between the lamp 200 and the circuit board 130 is not affected, which is not limited specifically.

Optionally, the first end of the first casing 110 is configured with a first fixing portion 113 inward, and the second end of the first casing 110 is open; a first end of the second housing 120 is open, a second fixing portion 123 is inwardly formed at a position of the second housing 120 corresponding to the first fixing portion 113, and the second fixing portion 123 extends to the first fixing portion 113 through the opening; the first fixing portion 113 and the second fixing portion 123 are matched to fixedly connect the first casing 110 to the second casing 120, and the circuit board 130 is fixed between the first casing 110 and the second casing 120 through the first fixing portion 113 and the second fixing portion 123.

The first end of the first housing 110 is inwardly configured with a first fixing portion 113, the second end of the second housing 120 is inwardly configured with a second fixing portion 123 corresponding to the position of the first fixing portion 113, and the second fixing portion 123 extends to the first fixing portion 113. Thus, when the first housing 110 is fixedly connected to the second housing 120 through the first fixing portion 113 and the second fixing portion 123, the first fixing portion 113 and the second fixing portion 123 are conveniently matched, and at the same time, the circuit board 130 is conveniently fixed between the first housing 110 and the second housing 120 through the first fixing portion 113 and the second fixing portion 123. The second fixing portion 123 extends to the first fixing portion 113, so that the stability of the circuit board 130 fixed between the first casing 110 and the second casing 120 can be effectively ensured, and the lamp 200 can not be used normally due to the unstable fixation of the circuit board 130. The second end of the first housing 110 is open and the first end of the second housing 120 is open. Thus, when the first housing 110 and the second housing 120 are fixedly connected by the first fixing portion 113 and the second fixing portion 123, the edge portion of the second end of the first housing 110 is connected with the edge portion of the first end of the second housing 120, and further the first housing 110 and the second housing 120 enclose to form an accommodating space, and further, the connections between the components are all located in the accommodating space. Like this, guaranteed the holistic aesthetic property of the device 100 that disappears on the one hand, on the other hand plays a guard action to the connection between each part, when avoiding external force factor to cause the damage to each part effectively, avoids the inside electric connection of device 100 that disappears to cause the injury to the user.

According to the lightning arrester 100 for the single-fire intelligent switch 700 provided by the embodiment of the disclosure, the first fixing portion 113 and the second fixing portion 123 are matched to fixedly connect the first casing 110 and the second casing 120, meanwhile, the circuit board 130 is fixed between the first casing 110 and the second casing 120, and the first fixing portion 113 and the second fixing portion 123 are matched by screws 150, buckles, glue dispensing, ultrasonic welding and the like. The circuit board 130 is not particularly limited as long as it can be fixed between the first housing 110 and the second housing 120 while the first housing 110 and the second housing 120 are fixedly connected.

Optionally, a first screw hole is formed at the bottom end of the first fixing portion 113, a second screw hole is formed at a position of the second fixing portion 123 corresponding to the first screw hole, a third screw hole is formed at a position of the circuit board 130 corresponding to the second screw hole, and the first housing 110, the circuit board 130, and the second housing 120 are sequentially fastened and connected by a screw 150.

The screws 150 pass through the second screw holes, the third screw holes and the first screw holes to fasten the second housing 120 to the first housing 110, and the circuit board 130 is fastened between the first housing 110 and the second housing 120. The first housing 110, the second housing 120 and the circuit board 130 are fixed by screws 150 in a simple and convenient manner. Meanwhile, when the interior of the flash extinguishing device 100 needs to be overhauled, the flash extinguishing device 100 can be conveniently disassembled and assembled by fastening the screws 150. The fastening of the screws 150 effectively avoids the difficulty in assembling and disassembling the anti-flashover device 100 due to the use of fixing means such as gluing, and further causes the anti-flashover device 100 to be a disposable product, thereby causing waste.

Alternatively, the number of the first fixing portion 113 and the second fixing portion 123 is plural.

By arranging the plurality of first fixing parts 113 and the plurality of second fixing parts 123 and by matching the plurality of first fixing parts 113 with the plurality of second fixing parts 123, on one hand, the stability of the connection between the first shell 110 and the second shell 120 is effectively improved, and the damage of the lightning arrester 100 caused by the unstable connection between the first shell 110 and the second shell 120 is avoided, thereby reducing the service life of the lightning arrester 100; on the other hand, the fixing stability of the circuit board 130 is effectively improved, and the problem that the lamp 200 cannot be normally used due to the unstable fixation of the circuit board 130 is avoided.

Optionally, the edge portion of the first casing 110 is configured with a first edge 114, the edge portion of the second casing 120 is configured with a second edge 124, and the second edge 124 is matched with the first edge 114, wherein when the second casing 120 is connected to the first casing 110, the second edge 124 is clamped to the first edge 114.

A first ledge 114 is formed at an edge portion of the first housing 110, and a second ledge 124 is formed at an edge portion of the second housing 120. When the first housing 110 and the second housing 120 are connected by the first fixing portion 113 and the second fixing portion 123, the first edge 114 is clamped to the second edge 124. In this way, the first housing 110 and the second housing 120 are clamped to make the outer surface of the housing of the lightning arrester 100 smooth, which effectively ensures the overall aesthetic appearance of the lightning arrester 100 on the one hand, and further ensures the connection stability of the first housing 110 and the second housing 120 through the clamping of the first clamping edge 114 and the second clamping edge 124 on the other hand.

Optionally, the first mounting portion 112 and the second mounting portion 122 are both made of metal.

The first installation part 112 and the second installation part 122 are both made of metal materials, so that the lightning arrester 100 is electrically connected with the lamp 200 and the lamp holder 300, and the normal use of the lamp 200 is effectively ensured.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and illustrated in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A flash extinguishing device for a single-fire intelligent switch, comprising:

the lamp comprises a shell, a lamp holder and a lamp body, wherein the shell is provided with a first installation part and a second installation part, the first installation part is used for being connected with the lamp holder, and the second installation part is used for being connected with the lamp;

the circuit board is arranged in the shell and is electrically connected with the first mounting part and the second mounting part respectively;

when the first installation part is connected with the lamp holder and the second installation part is connected with the lamp, the circuit board is connected with the lamp in parallel, and after the single-fire intelligent switch controls the lamp to be in an extinguishing state, the circuit board bypasses the lamp.

2. The anti-glare device of claim 1, wherein the housing comprises:

the first end of the first shell is provided with the first mounting part;

the first end of the second shell is connected to the second end of the first shell, and a second mounting part is arranged at the second end of the second shell;

wherein the circuit board is disposed between the first housing and the second housing.

3. A deflash device according to claim 2,

the first end of the first shell is outwards provided with a boss, and the first mounting part is fixed on the boss.

4. A deflash device according to claim 2,

the second end of second casing inwards is constructed flutedly, the recess with the second installation department phase-match, the second installation department is fixed in the recess.

5. A deflash device as claimed in claim 4,

the bottom of the groove is provided with an opening;

the flash extinction device further comprises:

one end of the metal sheet is fixed at the bottom of the groove, and the other end of the metal sheet is bent and extends out of the opening to abut against the circuit board.

6. A deflash device according to claim 2,

a first fixing part is inwards formed at the first end of the first shell, and the second end of the first shell is open;

the first end of the second shell is open, a second fixing part is inwardly constructed at the position, corresponding to the first fixing part, of the second end of the second shell, and the second fixing part extends to the first fixing part through the opening;

the first fixing part is matched with the second fixing part, so that the first shell is fixedly connected with the second shell, and the circuit board is fixed between the first shell and the second shell through the first fixing part and the second fixing part.

7. A deflash device according to claim 6,

the bottom of the first fixing portion is provided with a first screw hole, the position, corresponding to the first screw hole, of the second fixing portion is provided with a second screw hole, the position, corresponding to the second screw hole, of the circuit board is provided with a third screw hole, and the first shell, the circuit board and the second shell are connected in a fastened mode through screws in sequence.

8. A deflash device as claimed in claim 7,

the number of the first fixing parts and the second fixing parts is multiple.

9. A deflash device according to any one of claims 2 to 8,

the edge part of the first shell is provided with a first clamping edge, the edge part of the second shell is provided with a second clamping edge, and the second clamping edge is matched with the first clamping edge,

when the second shell is connected to the first shell, the second clamping edge is clamped on the first clamping edge.

10. A deflash device according to any one of claims 1 to 8,

the first installation part and the second installation part are made of metal materials.