CN203456211U - Novel NTC (negative temperature coefficient) thermistor - Google Patents
Novel NTC (negative temperature coefficient) thermistor Download PDFInfo
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- CN203456211U CN203456211U CN201320432797.3U CN201320432797U CN203456211U CN 203456211 U CN203456211 U CN 203456211U CN 201320432797 U CN201320432797 U CN 201320432797U CN 203456211 U CN203456211 U CN 203456211U
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Abstract
The utility model discloses a novel NTC (negative temperature coefficient) thermistor. The novel NTC thermistor comprises a ceramic body, a thermistor chip and pins, wherein the thermistor chip is installed in the ceramic body and is connected with the pins; the ceramic body is externally provided with a temperature reduction layer; dampproof coatings are coated on the temperature reduction layer; additionally, the bottom ends of the pins are provided with overload protectors. According to the utility model, the surge current of a power supply circuit is suppressed effectively, and meanwhile, the temperature reduction layer is arranged outside the ceramic body, so that higher heat generated by long-time operation of the NTC thermistor can be reduced; the high temperature loading and aging of the NTC thermistor can be prevented so as to protect effects of other electronic products; the novel NTC thermistor is safer to use.
Description
Technical field
The utility model relates to thermistor technical field, is specially a kind of Novel NTC thermistor device.
Background technology
Thermistor is widely used in conversion electric power, Switching Power Supply, ups power, all kinds of electric heater, electronic energy-saving lamp, electric ballast, various electronic device power circuit protection field; Make temperature-compensating, control and measurement type (Ф 2～Ф 5 and SMD) product, for household electrical appliance as the temperature control of the small household appliances such as air-conditioning, microwave oven, electric fan, electric heater and detection, business automation equipment.Yet power circuit produced and has larger surge current in the moment of start, electric current is excessive easily to cause damage to other electronic products that are serially connected in power circuit, but current thermistor cannot timely and effective surge current suppression in moment of power circuit start, thermistor is along with the prolongation of operating time simultaneously, and always at higher temperature, generation has higher heat, add the product loading of switching on for a long time, conventionally thermistor loses other electronic product effects of protection because of high temperature aging at loading, cause power circuit to have certain potential safety hazard.
Utility model content
The technical problem that the utility model solves is to provide a kind of New NTC (Negative Temperature Coefficient negative temperature coefficient) thermistor, to solve the shortcoming in above-mentioned background technology.
The technical problem that the utility model solves realizes by the following technical solutions:
A Novel NTC thermistor device, comprises ceramic body, thermistor chip and pin; Wherein, thermistor chip is arranged in ceramic body, and is connected with pin; Ceramic body is outside equipped with cooling layer, on cooling layer, is coated with moisture-proof coating; In addition, pin bottom is provided with overload protective device.
In the utility model, thermistor chip is NTC thermistor, can effectively suppress surge current in power circuit, guarantees that in power circuit, electronic equipment exempts from destruction.
In the utility model, ceramic body is ellipsoidal structure.
In the utility model, overload protective device is for when power circuit produces huge surge current, and protection thermistor chip, prevents that thermistor chip is damaged.
In the utility model; surge current when NTC themistor can suppress power circuit start effectively; and after completing surge current suppression effect; because the resistance value of the continuous action NTC themistor by its electric current will drop to the limit; effectively reduce energy consumption; simultaneously by cooling layer is set outward at ceramic body; can reduce NTC themistor works long hours and produces higher heat; prevent that NTC themistor from protecting the effect of other electronic products because of high temperature aging at loading, use safer.
Beneficial effect: the utility model is when effectively suppressing power circuit surge current; by cooling layer is set outward at ceramic body; can reduce NTC themistor works long hours and produces higher heat; prevent that NTC themistor from protecting the effect of other electronic products because of high temperature aging at loading, use safer.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model preferred embodiment.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
A kind of Novel NTC thermistor device referring to Fig. 1, comprises ceramic body 1, thermistor chip 2 and pin 3; Wherein, thermistor chip 2 is arranged in ceramic body 1, and is connected with pin 3; Ceramic body 1 is outside equipped with cooling layer 4, on cooling layer 4, is coated with moisture-proof coating; In addition, pin 3 bottoms are provided with overload protective device 5.
In the present embodiment, thermistor chip 2 is NTC thermistor, can effectively suppress surge current in power circuit, guarantees that in power circuit, electronic equipment exempts from destruction.
In the present embodiment, ceramic body 1 is ellipsoidal structure.
In the present embodiment, overload protective device 5 is for when power circuit produces huge surge current, and protection thermistor chip 2, prevents that thermistor chip 2 is damaged.
In the present embodiment; surge current when NTC themistor can suppress power circuit start effectively; and after completing surge current suppression effect; because the resistance value of the continuous action NTC themistor by its electric current will drop to the limit; effectively reduce energy consumption; simultaneously by the outer cooling layer 4 that arranges of ceramic body 1; can reduce NTC themistor works long hours and produces higher heat; prevent that NTC themistor from protecting the effect of other electronic products because of high temperature aging at loading, use safer.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. a Novel NTC thermistor device, comprises ceramic body, thermistor chip and pin; It is characterized in that, thermistor chip is arranged in ceramic body, and is connected with pin; Ceramic body is outside equipped with cooling layer, on cooling layer, is coated with moisture-proof coating; In addition, pin bottom is provided with overload protective device.
2. a kind of Novel NTC thermistor device according to claim 1, is characterized in that, thermistor chip is NTC thermistor.
3. a kind of Novel NTC thermistor device according to claim 1, is characterized in that, ceramic body is ellipsoidal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320432797.3U CN203456211U (en) | 2013-07-18 | 2013-07-18 | Novel NTC (negative temperature coefficient) thermistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320432797.3U CN203456211U (en) | 2013-07-18 | 2013-07-18 | Novel NTC (negative temperature coefficient) thermistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203456211U true CN203456211U (en) | 2014-02-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320432797.3U Expired - Fee Related CN203456211U (en) | 2013-07-18 | 2013-07-18 | Novel NTC (negative temperature coefficient) thermistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203456211U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108345052A (en) * | 2018-02-23 | 2018-07-31 | 北京爱尔达电子设备有限公司 | Thermistor supporting structure and rocketsonde |
| CN108492951A (en) * | 2018-03-11 | 2018-09-04 | 南京科敏电子有限公司 | SMD power-types NTC thermistor and its preparation process |
-
2013
- 2013-07-18 CN CN201320432797.3U patent/CN203456211U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108345052A (en) * | 2018-02-23 | 2018-07-31 | 北京爱尔达电子设备有限公司 | Thermistor supporting structure and rocketsonde |
| CN108492951A (en) * | 2018-03-11 | 2018-09-04 | 南京科敏电子有限公司 | SMD power-types NTC thermistor and its preparation process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20140226 Termination date: 20190718 |