CN202050536U - Loudspeaker and electronic device - Google Patents
Loudspeaker and electronic device Download PDFInfo
- Publication number
- CN202050536U CN202050536U CN201120108185XU CN201120108185U CN202050536U CN 202050536 U CN202050536 U CN 202050536U CN 201120108185X U CN201120108185X U CN 201120108185XU CN 201120108185 U CN201120108185 U CN 201120108185U CN 202050536 U CN202050536 U CN 202050536U
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- loud speaker
- thermistor
- conductive coil
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Abstract
The utility model provides a loudspeaker, which comprises a conductive coil and a thermistor which is used for providing overheating protection to the loudspeaker. One end of the thermistor is electrically connected with the conductive coil and the other end of the thermistor is electrically connected with the terminal of the loudspeaker. The utility model additionally provides an electronic device with the loudspeaker. The loudspeaker and the electronic device provided by the utility model have the advantages that the structure is simple, the design is reasonable and the used thermistor can reduce loudspeaker overheating caused by too high power and damages caused by the too large vibrating amplitude of a diaphragm.
Description
Technical field
The utility model relates to the loud speaker field, particularly relates to a kind of loud speaker and has the electronic installation of this loud speaker.
Background technology
The conductive coil of traditional loud speaker adopts common metal mostly, because the resistance of common metal is insensitive to variations in temperature, exponentially increases its power output along with the increase of voltage, the heat that produces in the big more then loud speaker of power output is many more, thereby cause that the loud speaker body is overheated and cause coil burnout, in addition, thus power output becomes and can cause that greatly also the excessive coil that causes of vibrating diaphragm Oscillation Amplitude is scattered.
Therefore, be necessary loud speaker is improved design, to solve the problems of the technologies described above.
The utility model content
For solving the problems of the technologies described above, the utility model provides a kind of loud speaker and electronic installation.
The utility model provides a kind of loud speaker, and loud speaker comprises conductive coil, and loud speaker comprises that also one is used for the thermistor to the loud speaker overtemperature protection, an end of the thermistor conductive coil that is electrically serially connected, and the other end electrically connects the terminal of loud speaker.
According to a preferred embodiment of the present utility model, the contiguous conductive coil setting of thermistor.
According to a preferred embodiment of the present utility model, conductive coil is made by the higher electric conducting material of temperature-sensitive sensitivity.
The utility model also provides a kind of electronic installation; comprise loud speaker, loud speaker comprises conductive coil, and loud speaker comprises that also one is used for the thermistor to the loud speaker overtemperature protection; one end of the thermistor conductive coil that is electrically serially connected, the other end electrically connects the terminal of loud speaker.
According to a preferred embodiment of the present utility model, the contiguous conductive coil setting of thermistor.
According to a preferred embodiment of the present utility model, conductive coil is made by the higher electric conducting material of temperature-sensitive sensitivity.
Loud speaker of the present utility model and electronic device construction are simple and reasonable in design, and the thermistor that it adopted can reduce loud speaker because the excessive overheated and excessive damage that produces of vibrating diaphragm Oscillation Amplitude that causes of power.
Description of drawings
Fig. 1 is the circuit diagram of the utility model loud speaker.
Embodiment
Below in conjunction with drawings and Examples the utility model is elaborated.
Fig. 1 is the circuit diagram of the utility model loud speaker.As shown in Figure 1, loud speaker of the present utility model comprises conductive coil L and thermistor R.
Wherein, thermistor R is mainly used in superheat protecting function.The end of the thermistor R conductive coil L that is electrically serially connected, the other end electrically connects the terminal INPUT of loud speaker.Thermistor R has following character: to responsive to temperature, and can show different resistance values under different temperature, its resistance was big more when temperature was high more.Preferably the conductive coil L with the contiguous loud speaker of thermistor R is provided with, to guarantee real-time and the accuracy of thermistor R to the inside loudspeakers temperature sense.
Because the conductive coil of traditional loud speaker generally adopts common metal, the resistance of common metal is insensitive to variations in temperature, exponentially increases its power output: W=U*U/R along with the increase of voltage, the heat that produces in the big more then inside loudspeakers of the power output a-quadrant is many more, thereby cause that the loud speaker body is overheated and cause conductive coil to burn easily, in addition, thus power output becomes and can cause that greatly also the excessive conductive coil that causes of vibrating diaphragm Oscillation Amplitude is scattered.The terminal INPUT of the utility model loud speaker goes up polyphone one thermistor R, when temperature increases, the also corresponding increase of the overall electrical resistance of loud speaker, the power output of loud speaker is lowered with regard to corresponding like this, thereby guarantees that the loud speaker body can be because of not overheated or Oscillation Amplitude is excessive burns out or make conductive coil to be scattered.
In other embodiments, the material of the conductive coil of loud speaker can also be replaced with the higher coiling of temperature-sensitive sensitivity by common metal, formed like this conductive coil has thermally sensitive effect equally, and when the loud speaker body is overheated, can be so that the corresponding increase of the overall electrical resistance of loud speaker, the corresponding power output that reduces loud speaker can guarantee that equally the loud speaker body can be because of not overheated or Oscillation Amplitude is excessive burns out or make conductive coil to be scattered.Further, the higher conductive coil of temperature-sensitive sensitivity can use separately, also can electrically be connected in series with thermistor.
In addition, the utility model also provides a kind of electronic installation with the utility model loud speaker.
Loud speaker of the present utility model and electronic device construction are simple and reasonable in design, and the thermistor that it adopted can reduce loud speaker because the excessive overheated and excessive damage that produces of vibrating diaphragm Oscillation Amplitude that causes of power.
The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (6)
1. loud speaker; described loud speaker comprises conductive coil, it is characterized in that, described loud speaker comprises that also one is used for the thermistor to the loud speaker overtemperature protection; one end of the described thermistor described conductive coil that is electrically serially connected, the other end electrically connects the terminal of described loud speaker.
2. loud speaker according to claim 1 is characterized in that, the contiguous described conductive coil setting of described thermistor.
3. loud speaker according to claim 1 is characterized in that, described conductive coil is made by the higher electric conducting material of temperature-sensitive sensitivity.
4. electronic installation; comprise loud speaker; described loud speaker comprises conductive coil; it is characterized in that; described loud speaker comprises that also one is used for the thermistor to the loud speaker overtemperature protection; one end of the described thermistor described conductive coil that is electrically serially connected, the other end electrically connects the terminal of described loud speaker.
5. electronic installation according to claim 4 is characterized in that, the contiguous described conductive coil setting of described thermistor.
6. electronic installation according to claim 4 is characterized in that, described conductive coil is made by the higher electric conducting material of temperature-sensitive sensitivity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120108185XU CN202050536U (en) | 2011-04-13 | 2011-04-13 | Loudspeaker and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120108185XU CN202050536U (en) | 2011-04-13 | 2011-04-13 | Loudspeaker and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202050536U true CN202050536U (en) | 2011-11-23 |
Family
ID=44990826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120108185XU Expired - Fee Related CN202050536U (en) | 2011-04-13 | 2011-04-13 | Loudspeaker and electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202050536U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104066035A (en) * | 2013-03-21 | 2014-09-24 | 万喻 | Motor vehicle horn long-time sounding protection method and circuit |
| CN105516874A (en) * | 2014-10-10 | 2016-04-20 | 亚德诺半导体集团 | Overheat protector and protection methodology for electrodynamic loudspeakers |
| CN108649790A (en) * | 2018-07-17 | 2018-10-12 | 隐士音响（杭州）有限公司 | A kind of power supply system of excitation coil-moving speaker |
-
2011
- 2011-04-13 CN CN201120108185XU patent/CN202050536U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104066035A (en) * | 2013-03-21 | 2014-09-24 | 万喻 | Motor vehicle horn long-time sounding protection method and circuit |
| CN104066035B (en) * | 2013-03-21 | 2018-07-13 | 万喻 | A kind of guard method when horn of motor vehicle pipes for a long time and its circuit |
| CN105516874A (en) * | 2014-10-10 | 2016-04-20 | 亚德诺半导体集团 | Overheat protector and protection methodology for electrodynamic loudspeakers |
| CN105516874B (en) * | 2014-10-10 | 2021-09-24 | 亚德诺半导体国际无限责任公司 | Overheat protector for electrodynamic loudspeaker and protection method |
| CN108649790A (en) * | 2018-07-17 | 2018-10-12 | 隐士音响（杭州）有限公司 | A kind of power supply system of excitation coil-moving speaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20130413 |