CN2666071Y - Equal magnetic field partition type loudspeaker - Google Patents
Equal magnetic field partition type loudspeaker Download PDFInfo
- Publication number
- CN2666071Y CN2666071Y CN 200320119798 CN200320119798U CN2666071Y CN 2666071 Y CN2666071 Y CN 2666071Y CN 200320119798 CN200320119798 CN 200320119798 CN 200320119798 U CN200320119798 U CN 200320119798U CN 2666071 Y CN2666071 Y CN 2666071Y
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- CN
- China
- Prior art keywords
- voice coil
- magnetic field
- coil loudspeaker
- loudspeaker voice
- vibrating membrane
- Prior art date
- 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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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model relates to an isomagnetic partitioned loudspeaker, comprising a shell body, a voice coil, a vibrating membrane, a magnet, a voice coil frame and a connection suspension ring of the vibrating membrane. The magnet consists of four independent equally-divided small magnets which are arranged in the middle of the shell in a matrix pattern. Gaps exist between the small magnets and adjacent small magnets are opposite in polarity. The voice coil is fixed on the voice coil frame in a matrix pattern and can vibrate up and down in the gaps of the small magnets. Edges of an inner core of the vibrating membrane are connected with the voice coil frame while outer edges of the vibrating membrane are connected with the shell body by the connection suspension ring of the vibrating membrane. By adopting the technic proposal, the utility model is characterized in that the utility model has a small magnet, strong and uniform magnetic field, high utilization of the magnet and small magnetic field outside of the voice coil, and has the beneficial effects of small volume, light weight and good performance and so on.
Description
Technical field:
The utility model relates to a kind of loud speaker, particularly relates to magnetic field partition type loud speakers such as a kind of.
Background technology:
Along with the development of the improvement, particularly microelectric technique of progress of science and technology and people life, various high-quality electroacoustic device is showed not poor, and people are also more and more higher to the requirement of the critical piece loud speaker of electroacoustic device; Present common loud speaker, basically be single magnetic field structure, its working method is that voice coil loudspeaker voice coil places in the middle of the single magnetic field, the electric current electromagnetic field that voice coil loudspeaker voice coil produces during by voice coil loudspeaker voice coil repels each other with the magnetic field of magnet or suction mutually, thereby the motive force promotion vibrating diaphragm of voice coil loudspeaker voice coil generation or the basin that shakes are done reciprocating linear motion, but because voice coil loudspeaker voice coil is in the middle of the single magnetic field, cause the magnetic flux efficient of voice coil loudspeaker voice coil low, magnet is big, and the voice coil loudspeaker voice coil external magnetic field is strong, and leakage field is more serious, be difficult to obtain uniform magnetic field and cause the magnetic distortion phenomenon, it is big that made loud speaker exists volume, Heavy Weight, defective such as consumable material is many.
The utility model content:
The purpose of this utility model is to overcome the conventional loudspeakers deficiency, provides that a kind of to have a volume little, in light weight, and the fidelity performance is good, consumable material few etc. magnetic field partition type loud speaker.
The utility model is achieved in that magnetic field partition type loud speakers such as a kind of, comprises that housing 1, voice coil loudspeaker voice coil 2, vibrating membrane 3, magnet 4, sound ring frame 6, vibrating membrane connect ring 7, and described magnet is made up of the little magnetic patch 8 of four independent five equilibriums; Described little magnetic patch is arranged in the middle of the housing 1 with matrix pattern, between the little magnetic patch slit is arranged, adjacent little magnetic patch polarity is opposite, described voice coil loudspeaker voice coil is the matrix pattern structure and is fixed on the sound ring frame, voice coil loudspeaker voice coil can be in the slit of little magnetic patch up-down vibration, described vibrating membrane inner core edge is connected with sound ring frame, and the vibrating membrane outer rim connects ring by vibrating membrane and is connected with housing.
The three-decker that described sound ring frame is composed of a fixed connection by last circle frame 9, cross frame 10 and lower shoe 11, described lower shoe 11 has with little magnetic patch and arranges four through holes 12 that are complementary, voice coil loudspeaker voice coil is fixed on the bore periphery, and cross frame is between the slit of through hole.
Described voice coil loudspeaker voice coil is divided into voice coil loudspeaker voice coil A13 and two groups of windings of voice coil loudspeaker voice coil B14, and promptly the voice coil loudspeaker voice coil around the identical little magnetic patch of polarity arrangement is same winding, and same winding current direction is identical, and different winding current directions are opposite, voice coil loudspeaker voice coil A and voice coil loudspeaker voice coil B parallel connection.
Described voice coil loudspeaker voice coil can adopt the enamelled wire coiling or adopt the print circuit plates making mode to be produced on the described sound ring frame lower shoe.
Described magnet is a Nd-Fe-B permanent magnet.
Between described sound ring frame lower shoe and the housing location ring is installed.
Dust cap is installed in the middle of the described vibrating membrane front.
Antimagnetic cap is installed in the middle of the described housing bottom surface.
Described little magnetic patch is that the cross section is foursquare cylinder.
The utility model and traditional loud speaker difference are, magnet described in the utility model for etc. the magnetic field partition type, itself and the direct supporting coupling of voice coil loudspeaker voice coil subregion, when audio signal is imported, voice coil loudspeaker voice coil is in all the time in the stronger and uniform magnetic field induction and vibrates, so can produce magnetic fidelity degree higher language or music effect; In the utility model, magnet is if use rare-earth Nd-Fe-B permanent magnet, and then the magnet of described loud speaker can be done forr a short time, and its magnetic field intensity and magnetic property are more good.
The beneficial effects of the utility model are: owing to used technical scheme described in the utility model, characteristics such as make that to the utlity model has magnet little, magnetic field is strong and evenly, and magnet utilance height, voice coil loudspeaker voice coil external magnetic field are little, it is little, in light weight to have volume, the excellent beneficial effect of performance.
Description of drawings:
Below in conjunction with drawings and Examples the utility model is described in further detail:
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the structural representation of the utility model embodiment 1 sound ring frame;
Fig. 3 is the A-A cutaway view of Fig. 1;
Fig. 4 is the B-B cutaway view of Fig. 1;
Fig. 5 is the utility model embodiment 2 magnet structure schematic diagrames;
Among the figure, 1, housing; 2, voice coil loudspeaker voice coil; 3, vibrating membrane; 4, magnet; 5, location ring; 6, sound ring frame; 7, vibrating membrane connects ring; 8, little magnetic patch; 9, enclose frame on; 10, cross frame; 11, lower shoe; 12, through hole; 13, voice coil loudspeaker voice coil A; 14, voice coil loudspeaker voice coil B; 15, dust cap.
Embodiment:
Embodiment 1: referring to figs. 1 through Fig. 4, in this enforcement utility model example 1, magnetic field partition type loud speaker such as described, comprise that housing 1, voice coil loudspeaker voice coil 2, vibrating membrane 3, magnet 4, location ring 5, sound ring frame 6, vibrating membrane connect ring 7, it is characterized in that: described magnet is made up of the little magnetic patch 8 of four independent five equilibriums; Described little magnetic patch is arranged in the middle of the housing 1 with matrix pattern, between the little magnetic patch slit is arranged, adjacent little magnetic patch polarity is opposite, described voice coil loudspeaker voice coil is the matrix pattern structure and is fixed on the sound ring frame, voice coil loudspeaker voice coil can be in the slit of little magnetic patch up-down vibration, described vibrating membrane inner core edge is connected with sound ring frame, and the vibrating membrane outer rim connects ring by vibrating membrane and is connected with housing.
Described sound ring frame is the three-decker that is composed of a fixed connection by last circle frame 9, cross frame 10 and lower shoe 11, described lower shoe 11 has with little magnetic patch and arranges four through holes 12 that are complementary, voice coil loudspeaker voice coil is fixed on the bore periphery, and cross frame is between the slit of through hole.
Described voice coil loudspeaker voice coil is divided into voice coil loudspeaker voice coil A13 and two groups of windings of voice coil loudspeaker voice coil B14, and promptly the voice coil loudspeaker voice coil around the identical little magnetic patch of polarity arrangement is same winding, and its sense of current is identical, and different winding current directions are opposite, voice coil loudspeaker voice coil A and voice coil loudspeaker voice coil B parallel connection.
Described voice coil loudspeaker voice coil can adopt the enamelled wire coiling or adopt the print circuit plates making mode to be produced on the described sound ring frame lower shoe.
Described magnet is a Nd-Fe-B permanent magnet.
Between described sound ring frame lower shoe and the housing location ring is installed.
Dust cap is installed in the middle of the described vibrating membrane front.
Antimagnetic cap is installed in the middle of the described housing bottom surface.
Described little magnetic patch is that the cross section is foursquare cylinder.
The utility model and traditional loud speaker difference are, magnet described in the utility model for etc. the magnetic field partition type, itself and the direct supporting coupling of voice coil loudspeaker voice coil subregion, when audio signal is imported, voice coil loudspeaker voice coil is in all the time in the stronger and uniform magnetic field induction and vibrates, so can produce magnetic fidelity degree higher language or music effect; In the utility model, magnet is if use rare-earth Nd-Fe-B permanent magnet, and then the magnet of described loud speaker can be done forr a short time, and its magnetic field intensity and magnetic property are more good.
Embodiment 2: with reference to Fig. 5, in the utility model embodiment 2, described little magnetic patch is a cylinder, and described through hole is a circular hole, and other conditions are with embodiment 1.
Claims (9)
1, magnetic field partition type loud speaker such as a kind of comprises that housing (1), voice coil loudspeaker voice coil (2), vibrating membrane (3), magnet (4), sound ring frame (6), vibrating membrane connect ring (7), and it is characterized in that: described magnet is made up of the little magnetic patch (8) of four independent five equilibriums; Described little magnetic patch is arranged in the middle of the housing (1) with matrix pattern, between the little magnetic patch slit is arranged, adjacent little magnetic patch polarity is opposite, described voice coil loudspeaker voice coil is the matrix pattern structure and is fixed on the sound ring frame, voice coil loudspeaker voice coil can be in the slit of little magnetic patch up-down vibration, described vibrating membrane inner core edge is connected with sound ring frame, and the vibrating membrane outer rim connects ring by vibrating membrane and is connected with housing.
2, magnetic field partition type loud speaker such as according to claim 1, it is characterized in that: described sound ring frame is the three-decker that is composed of a fixed connection by last circle frame (9), cross frame (10) and lower shoe (11), described lower shoe (11) has with little magnetic patch (8) and arranges four through holes (12) that are complementary, voice coil loudspeaker voice coil is fixed on the bore periphery, and cross frame is between the slit of through hole.
3, magnetic field partition type loud speaker such as according to claim 1, it is characterized in that: described voice coil loudspeaker voice coil is divided into voice coil loudspeaker voice coil A (13) and (14) two groups of windings of voice coil loudspeaker voice coil B, promptly the voice coil loudspeaker voice coil around the identical little magnetic patch (8) of polarity arrangement is same winding, its sense of current is identical, voice coil loudspeaker voice coil A and voice coil loudspeaker voice coil B parallel connection.
4, magnetic field partition type loud speaker such as according to claim 1 is characterized in that: described voice coil loudspeaker voice coil can adopt the enamelled wire coiling or adopt the print circuit plates making mode to be produced on the described sound ring frame lower shoe.
5, magnetic field partition type loud speaker such as according to claim 1, it is characterized in that: described magnet is a Nd-Fe-B permanent magnet.
6, magnetic field partition type loud speaker such as according to claim 1 is characterized in that: location ring (5) is installed between described sound ring frame lower shoe and the housing.
7, magnetic field partition type loud speaker such as according to claim 1 is characterized in that: dust cap is installed in the middle of the described vibrating membrane front.
8, magnetic field partition type loud speaker such as according to claim 1 is characterized in that: antimagnetic cap is installed in the middle of the described housing bottom surface.
9, magnetic field partition type loud speaker such as according to claim 1, it is characterized in that: described little magnetic patch is that the cross section is foursquare cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320119798 CN2666071Y (en) | 2003-12-29 | 2003-12-29 | Equal magnetic field partition type loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320119798 CN2666071Y (en) | 2003-12-29 | 2003-12-29 | Equal magnetic field partition type loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2666071Y true CN2666071Y (en) | 2004-12-22 |
Family
ID=34347752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320119798 Expired - Fee Related CN2666071Y (en) | 2003-12-29 | 2003-12-29 | Equal magnetic field partition type loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2666071Y (en) |
-
2003
- 2003-12-29 CN CN 200320119798 patent/CN2666071Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |