CN207352956U - A kind of anti-explosion loudspeaker - Google Patents
A kind of anti-explosion loudspeaker Download PDFInfo
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- CN207352956U CN207352956U CN201721434577.9U CN201721434577U CN207352956U CN 207352956 U CN207352956 U CN 207352956U CN 201721434577 U CN201721434577 U CN 201721434577U CN 207352956 U CN207352956 U CN 207352956U
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- explosion
- housing
- coil rack
- loudspeaker
- coil
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Abstract
The utility model discloses a kind of anti-explosion loudspeaker, mainly include housing, it is arranged at the coil rack of the enclosure interior, coil is provided with the frame body of the coil rack, is provided with diaphragm at the top of the coil rack, the coil rack bottom is provided with armature, drive circuit is additionally provided with the frame body of the coil rack, described drive circuit one end is connected with the coil, the other end and cable connection, and fills encapsulation agent in the cavity that the housing and the coil rack are formed.Anti-explosion loudspeaker provided by the utility model, due to using encapsulation type of explosion proof construc tion, it would be possible to which the electrification device for producing spark and high temperature is poured and is encapsulated in colloid, will not be contacted with extraneous inflammable and explosive hazardous gas or dust, so as to reach explosion-proof effect；Meanwhile temperature protection switch is provided with drive circuit, when loudspeaker are when temperature is excessive in the case of abnormal failure, the power supply that can cut off loudspeaker is supplied, and anti-explosion loudspeaker is had the anti-explosion safety effect of higher.
Description
Technical field
Explosion-proof electric apparatus technical field is the utility model is related to, more particularly to a kind of anti-explosion loudspeaker.
Background technology
With the development of social economy and industrial technology, increasingly improved for explosion-proof electric apparatus processing and manufacturing required precision.
Electric apparatus for explosive atmospheres in flammable explosive gas or dust atmosphere, it is desirable to cannot in normal or abnormal work
Light exterior hazardous gas or dust sets off an explosion.Traditional anti-explosion loudspeaker persistently exists during work at contact because there are contact
Spark, does not reach requirement of explosion proof, and the design of anti-explosion loudspeaker is related to the multiple fields such as electricity, mechanics, acoustics, its design is always
It is a problem in Explosion-proof Design field.
Flame-proof type explosion-proof horn structure is complicated known to the country at present, and processing difficulties are with high costs.Due to explosion separation structure
Design needs, and substantial amounts of change, the especially change to magnetoelectricity has been carried out to conventional horn structure so that flame-proof type explosion-proof loudspeaker
Sound effect and sound pressure level be difficult to reach requirement.
Therefore, how to provide a kind of explosion-proof performance good anti-explosion loudspeaker, be those skilled in the art's technology urgently to be resolved hurrily
Problem.
Utility model content
The purpose of this utility model is to provide a kind of anti-explosion loudspeaker, has extraordinary explosion-proof performance and effect.
In order to solve the above technical problems, the utility model provides a kind of anti-explosion loudspeaker, including housing, the housing is arranged at
Internal coil rack, is provided with coil on the frame body of the coil rack, diaphragm is provided with the top of the coil rack, described
Coil rack bottom is provided with armature, and drive circuit, described drive circuit one end are additionally provided with the frame body of the coil rack
It is connected with the coil, the other end and cable connection, and fill and pour in the cavity that the housing is formed with the coil rack
Seal agent.
Preferably, it is additionally provided with temperature protection switch on the drive circuit.
Preferably, the protective cover for being arranged at the housing tip is further included, the protective cover edge is connected in the housing
Top outer wall.
Preferably, the location hole coordinated with stop screw is provided with the protective cover, so that the protective cover is anchored on
The housing tip.
Preferably, the protective cover is provided with gasket with the housing joint.
Preferably, further include and be arranged at the housing bottom, the rear cover for armature described in shade.
Preferably, the rear cover is provided with sealing ring with the housing joint.
Preferably, the waterproof connector for installing the cable is provided with the housing sidewall.
Anti-explosion loudspeaker provided by the utility model, mainly including housing, is arranged at the coil rack of the enclosure interior,
Coil is provided with the frame body of the coil rack, is provided with diaphragm at the top of the coil rack, the coil rack bottom is set
Armature is equipped with, drive circuit is additionally provided with the frame body of the coil rack, described drive circuit one end is connected with the coil,
The other end and cable connection, and fill encapsulation agent in the cavity that the housing and the coil rack are formed.The utility model
The anti-explosion loudspeaker of offer, due to using encapsulation type of explosion proof construc tion, it would be possible to which the electrification device for producing spark and high temperature is poured and is encapsulated in
In colloid, it will not be contacted with extraneous inflammable and explosive hazardous gas or dust, so as to reach explosion-proof effect；Meanwhile this anti-explosion loudspeaker
Interior drive circuit is provided with temperature protection switch, detects the temperature of loudspeaker, when loudspeaker temperature reaches the action threshold of temperature switch
During value, temperature protection switch is changed to off-state by closure state, and loudspeaker will disconnect power supply, loudspeaker is stopped, at a temperature of
Drop, ensures anti-explosion safety.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is the embodiment of the utility model, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is a kind of overall structure diagram of embodiment provided by the utility model；
Fig. 2 is the principle schematic of drive circuit in the utility model.
Wherein, in Fig. 1-Fig. 2：
Matrix -1, encapsulation agent -2, drive circuit -3, sealing ring -4, rear cover -5, nut -6, armature -7, coil
Skeleton -8, coil -9, screw -10, waterproof connector -11, cable -12, gasket -13, stop screw -14, diaphragm -
15, protective cover -16.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
Please refer to Fig.1, Fig. 1 is a kind of overall structure diagram of embodiment provided by the utility model.
In a kind of embodiment provided by the utility model, anti-explosion loudspeaker mainly includes housing 1, is arranged at shell
Coil rack 8 inside body 1, coil 9 is provided with the frame body of coil rack 8, and the top of coil rack 8 is provided with diaphragm 15, line
8 bottom of ring framework is provided with armature 7, and drive circuit 3,3 one end of drive circuit and coil are additionally provided with the frame body of coil rack 8
9 are connected, and the other end is connected with cable 12, and fill encapsulation agent 2 in the cavity that housing 1 and coil rack 8 are formed.
Wherein, coil 9 is wound on coil rack 8, and drive circuit 3, drive circuit 3 and line are placed with coil rack 8
Ring framework 8 is fixed on matrix 1 by screw 10 together, and armature 7 is installed on 8 center of coil rack, and is threadingly attached to
On matrix 1, armature 7 is being adjusted with after the distance of diaphragm 15, passing through 6 latched position of nut；Sealing ring is designed with rear cover 5
4 are used for water proof and dust proof；The power supply of drive circuit 3 is provided via the cable 12 through waterproof connector 11；In coil rack 8 and matrix
2 encapsulation of encapsulation agent is used between 1 cavity formed, the 2 preferred epoxy type of encapsulation agent；Sealing is equipped with matrix 1
Pad 13, is equipped with diaphragm 15 on gasket 13, protective cover 16 is equipped with diaphragm 15, it is simultaneously compressed by stop screw 14
It is fixed.Meanwhile it is provided with temperature protection switch in drive circuit 3.
Please refer to Fig.2, Fig. 2 is the principle schematic of drive circuit in the utility model.
Specifically, since loudspeaker use encapsulation type of explosion proof construc tion, it would be possible to which the electrification device for producing spark and high temperature is poured
It is encapsulated in colloid, will not be contacted with extraneous inflammable and explosive hazardous gas or dust, so as to reach explosion-proof effect；On drive circuit 3
It is provided with diode D1, DC-DC module U1, MCU unit U2, field-effect tube Q1；MCU units U2 is imitated with certain FREQUENCY CONTROL field
Should pipe Q1 break-make, at this time coil produce electromagnetic force will be with dynamic diaphragm vertical tremor sounding；Set at the same time on drive circuit
There is temperature protection switch KT1, when loudspeaker temperature reaches the working value of temperature switch setting, temperature protection switch KT1 is by closing
State is changed to off-state, and loudspeaker will disconnect power supply, loudspeaker is stopped, and temperature declines, and ensures anti-explosion safety.
In order to optimize the anti-explosion safety of anti-explosion loudspeaker in above-described embodiment, 1 top of housing is provided with protective cover 16, protective cover
The location hole coordinated with stop screw 14 is provided with 16 so that protective cover 16 is anchored on 1 top of housing, while protective cover 16 with
1 joint of housing is provided with gasket 13, makes anti-explosion loudspeaker completely isolated in working status and extraneous droplet or combustible dust, prevents
It is quick-fried safer.
Further, 1 bottom of housing is provided with rear cover 5, for shade armature 7, meanwhile, rear cover 5 is set with 1 joint of housing
Sealing ring 4 is equipped with, plays the role of water proof and dust proof, makes the working environment of anti-explosion loudspeaker more safe and reliable.
In addition, being provided with waterproof connector 11 on 1 side wall of housing, for installing cable 12, play the role of water proof and dust proof, make
The working environment of anti-explosion loudspeaker is more safe and reliable.
In conclusion the anti-explosion loudspeaker that the present embodiment is provided mainly includes housing, the line of the enclosure interior is arranged at
Ring framework, coil is provided with the frame body of the coil rack, diaphragm, the coil rack are provided with the top of the coil rack
Bottom is provided with armature, and drive circuit, described drive circuit one end and the line are additionally provided with the frame body of the coil rack
Circle is connected, the other end and cable connection, and fills encapsulation agent in the cavity that the housing and the coil rack are formed.This reality
With the anti-explosion loudspeaker of new offer, due to using encapsulation type of explosion proof construc tion, it would be possible to which the electrification device for producing spark and high temperature is equal
Pour and be encapsulated in colloid, will not be contacted with extraneous inflammable and explosive hazardous gas or dust, so as to reach explosion-proof effect；Meanwhile drive
Temperature protection switch is provided with circuit, when loudspeaker are when temperature is excessive in the case of abnormal failure, the power supply of loudspeaker can be cut off
Supply, makes anti-explosion loudspeaker have the anti-explosion safety effect of higher.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (8)
- A kind of 1. anti-explosion loudspeaker, it is characterised in that including housing (1), the internal coil rack (8) of the housing (1) is arranged at, Coil (9) is provided with the frame body of the coil rack (8), diaphragm (15), the line are provided with the top of the coil rack (8) Ring framework (8) bottom is provided with armature (7), and drive circuit (3), the drive are additionally provided with the frame body of the coil rack (8) Dynamic circuit (3) one end is connected with the coil (9), and the other end is connected with cable (12), and in the housing (1) and the coil Encapsulation agent (2) is filled in the cavity that skeleton (8) is formed.
- 2. anti-explosion loudspeaker according to claim 1, it is characterised in that temperature guarantor is additionally provided with the drive circuit (3) Shield switch.
- 3. anti-explosion loudspeaker according to claim 2, it is characterised in that further include and be arranged at the anti-of the housing (1) top Shield (16), protective cover (16) edge are connected in the housing (1) top outer wall.
- 4. anti-explosion loudspeaker according to claim 3, it is characterised in that be provided with the protective cover (16) and stop screw (14) location hole coordinated, so that the protective cover (16) is anchored on the housing (1) top.
- 5. anti-explosion loudspeaker according to claim 4, it is characterised in that the protective cover (16) connects with the housing (1) Place is provided with gasket (13).
- 6. anti-explosion loudspeaker according to claim 2, it is characterised in that further include and be arranged at the housing (1) bottom, be used for The rear cover (5) of armature described in shade (7).
- 7. anti-explosion loudspeaker according to claim 6, it is characterised in that the rear cover (5) sets with the housing (1) joint It is equipped with sealing ring (4).
- 8. anti-explosion loudspeaker according to claim 2, it is characterised in that be provided with housing (1) side wall for installing The waterproof connector (11) of the cable (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721434577.9U CN207352956U (en) | 2017-10-31 | 2017-10-31 | A kind of anti-explosion loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721434577.9U CN207352956U (en) | 2017-10-31 | 2017-10-31 | A kind of anti-explosion loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207352956U true CN207352956U (en) | 2018-05-11 |
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ID=62353149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721434577.9U Active CN207352956U (en) | 2017-10-31 | 2017-10-31 | A kind of anti-explosion loudspeaker |
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| CN (1) | CN207352956U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110415671A (en) * | 2019-06-14 | 2019-11-05 | 新沂市承翔电子有限公司 | A kind of electromagnetic buzzer having heat sinking function |
-
2017
- 2017-10-31 CN CN201721434577.9U patent/CN207352956U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110415671A (en) * | 2019-06-14 | 2019-11-05 | 新沂市承翔电子有限公司 | A kind of electromagnetic buzzer having heat sinking function |
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