CN201000048Y - Over temperature and overcurrent protection structure of luminous diode circuit module - Google Patents
Over temperature and overcurrent protection structure of luminous diode circuit module Download PDFInfo
- Publication number
- CN201000048Y CN201000048Y CNU2007200029132U CN200720002913U CN201000048Y CN 201000048 Y CN201000048 Y CN 201000048Y CN U2007200029132 U CNU2007200029132 U CN U2007200029132U CN 200720002913 U CN200720002913 U CN 200720002913U CN 201000048 Y CN201000048 Y CN 201000048Y
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- circuit board
- circuit
- light emitting
- emitting diode
- protection structure
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- 230000009977 dual effect Effects 0.000 claims description 3
- 238000005286 illumination Methods 0.000 abstract 6
- 230000005855 radiation Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 239000013256 coordination polymer Substances 0.000 description 2
- 230000008034 disappearance Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
An excess temperature and excess current protection structure of the circuit module of a light emitting diode. At least a light emitting diode (LED) is arranged on the circuit board, therein, the circuit board is a multi layer circuit board, a base part is arranged on the light emitting diode, an illumination part which can emit bright light is arranged at the upper part of the base part, connecting feet are symmetrically arranged on the both sides of the base part, the two connecting are penetrated in the circuit board, and respectively and electrically connected with the circuit of each layer of the circuit board, and a positive temperature coefficient component is arranged on the ends of the two connecting feet. Therefore, when excess temperature occurs at the illumination part and the temperature exceeds Curie temperature (CP), the resistance value of the positive temperature coefficient component quickly increases, to reduce the current flowing in the light emitting diode, therefore to enable the illumination part to reduce the illumination power, to avoid damage caused by excess heat, and simultaneously to avoid the current flowing in the illumination part to cause damage to the illumination part.
Description
Technical field
The utility model relates to a kind of excess temperature of circuit of LED module and overcurrent protection structure, refers to that especially a kind of circuit of LED module can be too high in occurrence temperature, or electric current is protected the structure of light emitting diode when excessive.
Background technology
General traditional circuit of LED module 1, see also shown in Figure 1, it mainly is to comprise: a circuit board 11, and at least one light emitting diode (LED) 12, above-mentioned light emitting diode 12 has the pins 124 that illuminating part 122, that a base portion 121, is positioned at base portion 121 tops and can sends light is positioned at the heat dissipation metal portion 123 of base portion 121 belows and two and base portion 121 and circuit board 11 electric connections, wherein, the bottom surface of this radiating part 123 end face common and circuit board 11 is fitted.
Tradition has the circuit board of light source when using, because it is less to produce thermal source during light source luminescent, more can not produce the puzzlement of heat radiation when therefore using, but should existing light emitting diode 12 be electronic products of a kind of high luminous power, though known light emitting diode 12 utilizes bottom radiating part 123 can assist heat radiation, but actual radiating effect is very limited, therefore, it is poor that this kind has the radiating effect of module 1 of light emitting diode 12, can't the heat radiation when improving luminous power need, and have much room for improvement.
The inventor is engaged in the manufacturing experience and the technology accumulation of various light emitting diodes according to it; method at the various solutions of the concentrated research of above-mentioned disappearance; after through constantly research, experiment and improvement; finally development and Design goes out the utility model of the excess temperature and the overcurrent protection structure of a kind of brand-new circuit of LED module of the present utility model, in the hope of the disappearance that prior art produced of forgoing.
The utility model content
A purpose of the present utility model is to provide a kind of excess temperature and overcurrent protection structure of circuit of LED module, so that the circuit of LED module can be too high in occurrence temperature, or electric current is protected light emitting diode when excessive.
The utility model is to adopt following technological means to realize:
A kind of excess temperature of circuit of LED module and overcurrent protection structure, it mainly has a circuit board and at least one light emitting diode, and this circuit board is a multilayer circuit board, has multilayer circuit; Described light emitting diode is provided with a base portion, base portion top is provided with an illuminating part that can send light, the base portion dual side-edge is arranged with two pins, this two pins, one end and illuminating part electrically connect, end penetrates in the circuit board in addition, electrically connect with the circuit of circuit board different layers respectively, on this two pins proximal end and be provided with a positive temperature coefficient assembly.
Aforesaid two pins, one end and illuminating part electrically connect, and end penetrates in the circuit board in addition, and the circuit with the circuit board identical layer electrically connects respectively.
The utility model compared with prior art has following remarkable advantages and beneficial effect:
Because in the excess temperature of the utility model circuit of LED module and overcurrent protection are constructed on the pin proximal end and be provided with a positive temperature coefficient (PTC) assembly; Make illuminating part generation temperature overheated, surpass when occupying gift temperature (CP), the rapid increase of resistance value meeting of these positive temperature coefficient assemblies, to reduce the electric current that flows into light emitting diode, make illuminating part reduce luminous power, and avoid temperature overheated and damage, the electric current of also avoiding entering illuminating part simultaneously is excessive, damages and illuminating part is produced.
Description of drawings
Fig. 1 is the local side figure of existing circuit of LED module;
Fig. 2 is the local side figure of the utility model circuit of LED module;
Fig. 3 is the local side exploded view of the utility model circuit of LED module.
The specific embodiment
Below in conjunction with accompanying drawing specific embodiment of the utility model is illustrated:
The utility model is in a kind of excess temperature and overcurrent protection structure of circuit of LED module, see also Fig. 2, shown in Figure 3, this structure mainly has a circuit board 3 and at least one light emitting diode 5 (LED), wherein, circuit board 3 is a multilayer circuit board, and has multilayer circuit 31; And light emitting diode 5 is provided with a base portion 51, base portion 51 tops are provided with an illuminating part 52 that can send light, base portion 51 dual side-edges are arranged with two pins 53, these two pins, 53 1 ends and illuminating part 52 electrically connect, end penetrates in the circuit board 3 in addition, circuit 31 with circuit board 3 different layers (or identical layer) electrically connects respectively, on these two pins, 53 proximal ends and be provided with a positive temperature coefficient (Positive TemperatureCoefficient is called for short PTC) assembly 54.
By forming of above-mentioned member, that temperatures take place is overheated when illuminating part 52, surpass when occupying gift temperature (CP), the rapid increase of resistance value meeting of these positive temperature coefficient assemblies 54, reduce to flow into the electric current of light emitting diode 5, illuminating part 52 reduces luminous powers, and avoids temperature overheated and damage, the electric current of also avoiding simultaneously entering illuminating part 52 is excessive, damages and illuminating part 52 is produced.
It should be noted that at last: above embodiment only in order to the explanation the utility model and and the described technical scheme of unrestricted the utility model; Therefore, although this specification has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technical scheme and the improvement thereof of the spirit and scope of utility model, and it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (2)
1, a kind of excess temperature of circuit of LED module and overcurrent protection structure, it mainly has a circuit board and at least one light emitting diode, it is characterized in that:
This circuit board is a multilayer circuit board, has multilayer circuit; Described light emitting diode is provided with a base portion, base portion top is provided with an illuminating part that can send light, the base portion dual side-edge is arranged with two pins, this two pins, one end and illuminating part electrically connect, end penetrates in the circuit board in addition, electrically connect with the circuit of circuit board different layers respectively, on this two pins proximal end and be provided with a positive temperature coefficient assembly.
2, the excess temperature of circuit of LED module according to claim 1 and overcurrent protection structure, wherein said two pins, one end and illuminating part electrically connect, and end penetrates in the circuit board in addition, and the circuit with the circuit board identical layer electrically connects respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200029132U CN201000048Y (en) | 2007-01-30 | 2007-01-30 | Over temperature and overcurrent protection structure of luminous diode circuit module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200029132U CN201000048Y (en) | 2007-01-30 | 2007-01-30 | Over temperature and overcurrent protection structure of luminous diode circuit module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201000048Y true CN201000048Y (en) | 2008-01-02 |
Family
ID=39014453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200029132U Expired - Fee Related CN201000048Y (en) | 2007-01-30 | 2007-01-30 | Over temperature and overcurrent protection structure of luminous diode circuit module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201000048Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654735A (en) * | 2015-11-03 | 2017-05-10 | 聚鼎科技股份有限公司 | Connector with a locking member |
-
2007
- 2007-01-30 CN CNU2007200029132U patent/CN201000048Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654735A (en) * | 2015-11-03 | 2017-05-10 | 聚鼎科技股份有限公司 | Connector with a locking member |
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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: 20080102 Termination date: 20100130 |