CN107277716B - A kind of nonpolarity selective positioning electromagnetic switch - Google Patents
A kind of nonpolarity selective positioning electromagnetic switch Download PDFInfo
- Publication number
- CN107277716B CN107277716B CN201710582906.2A CN201710582906A CN107277716B CN 107277716 B CN107277716 B CN 107277716B CN 201710582906 A CN201710582906 A CN 201710582906A CN 107277716 B CN107277716 B CN 107277716B
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- CN
- China
- Prior art keywords
- shell
- iron core
- coil
- connecting rod
- electromagnetic switch
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Abstract
The present invention relates to electromagnetic switch technical fields, refer specifically to a kind of nonpolarity selective positioning electromagnetic switch；Including shell and blocking film, it is equipped with coil and iron core in shell, the iron core can be arranged in coil to fore-aft travel, and the front end of iron core is equipped with connecting rod, and the front end of connecting rod is fixedly connected after passing through shell front side wall with blocking film；It is installed with fixed magnet in shell on rear side of the coil, varicose plate is equipped in the shell on front side of coil, the fixing end of varicose plate is connect with shell, and it is in be cooperatively connected that the movable end and connecting rod of varicose plate, which contradict,；Structure of the invention is reasonable, coil switches electrical current direction to switch the magnetic pole of iron core, and cooperation fixed magnet fore-aft motion drives the blocking film on connecting rod, blocks or open the leak holes on loudspeaker, iron core is self-positioning by stopping row block realization in preposition stroke, and iron core is positioned in postposition stroke and fixed magnet absorption；Compact overall structure, flexible movements, energy consumption are few, can effectively improve mobile phone communication quality.
Description
Technical field
The present invention relates to electromagnetic switch technical fields, refer specifically to a kind of nonpolarity selective positioning electromagnetic switch.
Background technique
There is some mobile phones tool currently on the market there are two loudspeakers to generate surround sound effect, this kind of mobile phone is usually used
The loudspeaker of side substitutes earpiece, when being conversed by the switching of circuit, the power of the loudspeaker is reduced, its volume is made
It is reduced to the degree for being suitble to listen attentively to close to ear.However in order to keep voice undistorted, the effective frequency range of general earpiece is
The low frequency of 300-3400Hz, and general loudspeaker is distorted more serious in the frequency range, therefore substitutes earpiece using loudspeaker,
In call, there are distortion phenomenons.For this purpose, some show in the art, it is low to improve to open up leak on the sound chamber of the loudspeaker
The problem of frequency is distorted, but the decline of high frequency audio is resulted in again.Therefore, the existing technology needs to be improved and developed.
Summary of the invention
In view of the defects and deficiencies of the prior art, the present invention intends to provide it is a kind of it is structurally reasonable,
To achieve the goals above, the invention adopts the following technical scheme:
A kind of nonpolarity selective positioning electromagnetic switch of the present invention, including shell and blocking film, shell is interior to be equipped with coil
And iron core, the iron core can be arranged in coil to fore-aft travel, the front end of iron core is equipped with connecting rod, and the front end of connecting rod passes through shell
It is fixedly connected after front side wall with blocking film；It is installed with fixed magnet in shell on rear side of the coil, is equipped in the shell on front side of coil
The fixing end of varicose plate, varicose plate is connect with shell, and the movable end and connecting rod of varicose plate are contradicted in mating connection.
According to above scheme, the movable end of the varicose plate is equipped with magnetizer.
According to above scheme, the connecting rod is equipped with the only row block cooperated with varicose plate, and only the front side of row block is equipped with inclined-plane
Or the transition structure of cambered surface, only the rear side of row block is equipped with dog-ear facade.
According to above scheme, coiling tub is installed in the shell, coil is set around in coiling tub, in coiling tub
Equipped with central through hole, iron core can be arranged in central through hole to fore-aft travel.
According to above scheme, the magnetic pole shaft of the fixed magnet, the magnetic pole shaft of coil, iron core and connecting rod are along same central axes
It is arranged concentrically.
According to above scheme, sheath is set on the fixed magnet, sheath is fixedly connected with the casing.
The invention has the following beneficial effects: structure of the invention is reasonable, coil switches electrical current direction to switch the magnetic pole of iron core,
Cooperate fixed magnet fore-aft motion to drive the blocking film on connecting rod, blocks or open the leak holes on loudspeaker, iron core is in preposition stroke
Self-positioning by stopping row block realization, iron core is positioned in postposition stroke and fixed magnet absorption；Compact overall structure, flexible movements, consumption
Can be few, mobile phone communication quality can be effectively improved.
Detailed description of the invention
Fig. 1 is inner plane structural schematic diagram of the invention.
In figure:
1, shell；2, coil；3, fixed magnet；4, blocking film；5, varicose plate；21, iron core；22, connecting rod；23, stop row block；24,
Coiling tub；25, central through hole；31, sheath；51, magnetizer.
Specific embodiment
Technical solution of the present invention is illustrated with embodiment with reference to the accompanying drawing.
As shown in Figure 1, a kind of nonpolarity selective positioning electromagnetic switch of the present invention, including shell
1 and blocking film 4, coil 2 and iron core 21 are equipped in shell 1, and the iron core 21 can be arranged in fore-aft travel in coil 2, iron core 21
Front end be equipped with connecting rod 22, the front end of connecting rod 22 is fixedly connected after passing through 1 front side wall of shell with blocking film 4；2 rear side of coil
It is installed with fixed magnet 3 in shell 1, varicose plate 5 is equipped in the shell 1 of 2 front side of coil, the fixing end and shell 1 of varicose plate 5 connect
It connects, the movable end and connecting rod 22 of varicose plate 5 are contradicted in mating connection；The coil 2, which is passed through electric current, makes iron core 21 generate magnetic pole, iron
Identical charges repel each other between core 21 and fixed magnet 3, and there is a natural attraction between the sexes, to make 21 realization of iron core movement two-way choice control；The coil 2
Iron core 21 repels each other with fixed magnet 3 when energization, and iron core 21 travels forward and blocking film 4 is pushed to open the leak holes on mobile phone speaker,
In the forward stroke limit, 5 movable end of varicose plate contradicts connecting rod 22 and generates extrusion friction iron core 21, so that iron core 21 be avoided to return
Contracting；Iron core 21 and fixed magnet 3 are attracting when the coil 2 is powered, and iron core 21 moves backward and blocking film 4 is pushed to block mobile phone speaker
On leak holes, iron core 21 is adsorbed in the backward travel limit with fixed magnet 3, to keep the motion stability of blocking film 4, the present invention
Compact overall structure, flexible movements, energy consumption are few, can effectively improve mobile phone communication quality.
The movable end of the varicose plate 5 is equipped with magnetizer 51, and the movable end of varicose plate 5 is arcuate structure, magnetizer 51
Attracted when coil 2 is powered by iron core 21, to make the movable end of varicose plate 5 raise up and be detached from connecting rod 22, reduces iron core 21
Movement resistance realize 5 lock state of varicose plate clutch for clutch control.
The connecting rod 22 is equipped with the only row block 23 cooperated with varicose plate 5, and only the front side of row block 23 is equipped with inclined-plane or cambered surface
Transition structure, only the rear side of row block 23 be equipped with dog-ear facade；Currently preferred only row block 23 is right angled triangle, and is only gone
The long side of block 23 and connecting rod 22 are fixed, only 23 end edge of row block is vertical with connecting rod 22, only the long bevel edge and front side top of row block 23
Varicose plate 5 is opposite, the iron core 21 in forward stroke, magnetizer 51 attracted by iron core 21 drive 5 movable end of varicose plate to
After raise up, the free end of varicose plate 5 makes connecting rod 22 advance along the long bevel edge disengaging for stopping row block 23, and then coil 2 powers off iron core 21
Demagnetization, then the movable end of varicose plate 5 is freely fallen after rise on rear side of only 23 short side of row block, and varicose plate 5 catches on only row block 23 and avoids iron
The retraction of core 21 realizes positioning, and varicose plate 5 at this time only needs the attraction for overcoming fixed magnet 3 to iron core 21, and iron core 21 is apart from fixed
Magnet 3 can keep the stable state of iron core 21 with respect to this varicose plate 5 of remote cause by the elastic properties of materials of itself；Conversely, iron core 21 exists
Attract magnetizer 51 when backward travel, so that varicose plate 5 be made to synchronize the contact connectio for raising up and disconnecting with only row block 23.
Coiling tub 24 is installed in the shell 1, coil 2 is set around in coiling tub 24, is equipped in coiling tub 24
Central through hole 25, iron core 21 can be arranged in fore-aft travel in central through hole 25, and the coiling tub 24 is used for 2 He of fixed coil
Iron core 21, preferred iron core 21 use rectangular section, coiling tub 24 and coil 2 and iron core 21 to cooperate consequently facilitating overall mechanism
Flattening.
The magnetic pole shaft of the fixed magnet 3, the magnetic pole shaft of coil 2, iron core 21 and connecting rod 22 are set along same central axes with one heart
It sets.
Sheath 31 is set on the fixed magnet 3, sheath 31 is fixedly connected with shell 1, and the sheath 31 can reduce iron core
21 movement when to impact force caused by fixed magnet 3.
The above description is only a preferred embodiment of the present invention, thus it is all according to the configuration described in the scope of the patent application of the present invention,
The equivalent change or modification that feature and principle are done, is included in the scope of the patent application of the present invention.
Claims (5)
- Be equipped with 1. a kind of nonpolarity selective positioning electromagnetic switch, including shell (1) and blocking film (4), in shell (1) coil (2) and Iron core (21), it is characterised in that: the iron core (21) can be arranged in fore-aft travel in coil (2), and the front end of iron core (21) is set Have connecting rod (22), the front end of connecting rod (22) is fixedly connected after passing through shell (1) front side wall with blocking film (4)；On rear side of the coil (2) Shell (1) in be installed with fixed magnet (3), be equipped with varicose plate (5) in the shell (1) on front side of coil (2), varicose plate (5) are consolidated Fixed end is connect with shell (1), and the movable end of varicose plate (5) and connecting rod (22) are contradicted in mating connection；The blocking film (4) and mobile phone Leak holes on loudspeaker are correspondingly arranged, in order to open or block leak holes；The movable end of the varicose plate (5) is equipped with magnetizer (51).
- 2. nonpolarity selective positioning electromagnetic switch according to claim 1, it is characterised in that: the connecting rod (22) is equipped with Stop row block (23) with what varicose plate (5) cooperated, only the front side of row block (23) is equipped with the transition structure of inclined-plane or cambered surface, only row block (23) rear side is equipped with dog-ear facade.
- 3. nonpolarity selective positioning electromagnetic switch according to claim 1, it is characterised in that: fixed in the shell (1) Have coiling tub (24), coil (2) is set around on coiling tub (24), is equipped with central through hole (25) in coiling tub (24), iron Core (21) can be arranged in fore-aft travel in central through hole (25).
- 4. nonpolarity selective positioning electromagnetic switch according to claim 1, it is characterised in that: the magnetic of the fixed magnet (3) Polar axis, the magnetic pole shaft of coil (2), iron core (21) and connecting rod (22) are arranged concentrically along same central axes.
- 5. nonpolarity selective positioning electromagnetic switch according to claim 1, it is characterised in that: covered on the fixed magnet (3) Equipped with sheath (31), sheath (31) is fixedly connected with shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710582906.2A CN107277716B (en) | 2017-07-17 | 2017-07-17 | A kind of nonpolarity selective positioning electromagnetic switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710582906.2A CN107277716B (en) | 2017-07-17 | 2017-07-17 | A kind of nonpolarity selective positioning electromagnetic switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107277716A CN107277716A (en) | 2017-10-20 |
| CN107277716B true CN107277716B (en) | 2019-11-19 |
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ID=60077675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710582906.2A Expired - Fee Related CN107277716B (en) | 2017-07-17 | 2017-07-17 | A kind of nonpolarity selective positioning electromagnetic switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107277716B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6484613A (en) * | 1987-09-26 | 1989-03-29 | Matsushita Electric Works Ltd | Polarized solenoid |
| CN201191588Y (en) * | 2008-01-29 | 2009-02-04 | 江苏中金电器设备有限公司 | Bi-stable state operating mechanism for permanent magnet type contactor |
| CN103500689A (en) * | 2013-09-27 | 2014-01-08 | 哈尔滨工业大学 | Electromagnetic structure of high-power relay |
-
2017
- 2017-07-17 CN CN201710582906.2A patent/CN107277716B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6484613A (en) * | 1987-09-26 | 1989-03-29 | Matsushita Electric Works Ltd | Polarized solenoid |
| CN201191588Y (en) * | 2008-01-29 | 2009-02-04 | 江苏中金电器设备有限公司 | Bi-stable state operating mechanism for permanent magnet type contactor |
| CN103500689A (en) * | 2013-09-27 | 2014-01-08 | 哈尔滨工业大学 | Electromagnetic structure of high-power relay |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107277716A (en) | 2017-10-20 |
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| PB01 | Publication | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191119 |