CN220491174U - Projector LED light source and projector - Google Patents
Projector LED light source and projector Download PDFInfo
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- CN220491174U CN220491174U CN202321020175.XU CN202321020175U CN220491174U CN 220491174 U CN220491174 U CN 220491174U CN 202321020175 U CN202321020175 U CN 202321020175U CN 220491174 U CN220491174 U CN 220491174U
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- projector
- light source
- led light
- substrate
- temperature information
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- 239000000758 substrate Substances 0.000 claims abstract description 61
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- 230000017525 heat dissipation Effects 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 239000011889 copper foil Substances 0.000 claims description 4
- 238000005530 etching Methods 0.000 claims description 2
- 230000005855 radiation Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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Abstract
The utility model discloses a projector LED light source and a projector, wherein a die bonding area is arranged on a substrate, a plurality of LED chips are fixedly arranged on the die bonding area, a temperature signal acquisition unit and a wiring terminal are fixedly arranged on the substrate, the wiring terminal is respectively and electrically connected with the temperature signal acquisition unit and the plurality of LED chips, the temperature signal acquisition unit acquires temperature information of the substrate, and after the temperature information is transmitted to an external controller through the wiring terminal, the wiring terminal receives external control signals sent by the external controller to control the working states of the plurality of LED chips, so that the working states of the plurality of LED chips are controlled according to the temperature information on the projector LED light source substrate; the technical problem that in the related art, the projector LED light source affects the internal devices of the projector or the LED light source after the temperature of the LED light source is increased under the condition of high-power operation for a long time, so that the service life of the projector or the LED light source is affected is solved.
Description
Technical Field
The utility model relates to the technical field of LEDs, in particular to a projector LED light source and a projector.
Background
The projector is used as a popular electronic product, is widely applied to work, entertainment and leisure, and provides great convenience and entertainment and interest for the work and the living of people. In the related art, when an LED light source is used as a projector light source, the LED light source may be in a high-power working condition for a long time, and after the temperature of the LED light source is increased, the LED light source may affect an internal device of the projector or the LED light source, so as to affect the service life of the projector or the LED light source.
Therefore, how to solve the technical problem that the LED light source itself or other devices inside the projector have short service life due to the temperature rise caused by the operation of the LED light source when the projector uses the LED light source is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The embodiment of the utility model provides a projector LED light source, which can detect the temperature of the projector LED light source and has long service life.
In a first aspect, an embodiment of the present utility model provides a projector light source including:
the substrate is provided with a die bonding area;
the LED chips are fixedly arranged on the die bonding area;
the temperature signal acquisition unit is fixedly arranged on the substrate and used for acquiring temperature information of the substrate;
the wiring terminal is arranged on the substrate, is electrically connected with the temperature signal acquisition unit and is used for receiving the temperature information and transmitting the temperature information to an external controller; the wiring terminal is also electrically connected with the LED chips and used for receiving external control signals, and the external control signals control the working states of the LED chips.
The LED light source of the projector has at least the following beneficial effects:
the embodiment of the utility model relates to a projector LED light source, which comprises a substrate, a plurality of LED chips, a temperature signal acquisition unit and a wiring terminal, wherein the substrate is arranged on the substrate; the LED light source comprises a substrate, a temperature signal acquisition unit, a wiring terminal, an external controller, a temperature signal acquisition unit and a wiring terminal, wherein the substrate is provided with a die bonding area, a plurality of LED chips are fixedly arranged on the die bonding area, the temperature signal acquisition unit and the wiring terminal are fixedly arranged on the substrate, the wiring terminal is respectively electrically connected with the temperature signal acquisition unit and the plurality of LED chips, acquires temperature information of the substrate, and after the temperature information is transmitted to the external controller through the wiring terminal, the wiring terminal receives an external control signal sent by the external controller and is used for controlling the working states of the plurality of LED chips, and further, the working states of the plurality of LED chips are controlled according to the temperature information on the LED light source substrate of the projector; the projector LED light source solves the technical problem that the projector LED light source in the related art can influence the internal devices of the projector or the LED light source due to the fact that the temperature of the LED light source is increased under the high-power working condition for a long time, so that the service life of the projector or the LED light source is influenced.
According to other embodiments of the present utility model, the projector LED light source, the temperature signal acquisition unit includes a thermistor or a thermocouple;
the thermistor is electrically connected with the wiring terminal and is used for transmitting the temperature information to the external controller through the wiring terminal;
the thermocouple is electrically connected with the wiring terminal and used for transmitting the temperature information to the external controller through the wiring terminal.
According to other embodiments of the present utility model, the plurality of LED chips are electrically connected in series or parallel.
According to other embodiments of the present utility model, the plurality of LED chips are fixedly disposed in the die bonding area in an array structure.
According to other embodiments of the present utility model, the substrate is a flip-chip aluminum substrate;
etching the copper foil layer on the surface of the inverted aluminum substrate through a high-precision exposure machine to form a connecting circuit;
the connecting circuit comprises a plurality of connecting circuits of the LED chips and the wiring terminals, connecting circuits of the temperature signal acquisition units and the wiring terminals and interface circuits of the wiring terminals.
According to other embodiments of the present utility model, the projector LED light source, the interface circuit of the connection terminal is provided with a plastic housing, and the plastic housing is provided with a snap-fit structure for connection with an external connection terminal.
According to other embodiments of the present utility model, the die bonding area is disposed in a central area of the substrate;
a preset distance exists between a fixed setting area of the temperature signal acquisition unit and the die bonding area;
the terminal is disposed on an edge region of the substrate.
In a second aspect, embodiments of the present utility model also provide a projector including a projector main body and a projector LED light source as described above;
the projector main body comprises a controller, the controller is connected with the wiring terminals through connecting wires, and the controller receives the temperature information and outputs control signals to control the working states of the LED chips.
According to other embodiments of the present utility model, the projector further comprises a heat dissipation module electrically connected to the controller; and after receiving the temperature information, the controller outputs a control signal to control the working state of the heat radiation module.
According to other embodiments of the present utility model, the heat dissipation module includes a fan.
Drawings
FIG. 1 is a schematic block diagram of an embodiment of a projector LED light source according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of an embodiment of a projector LED light source in a top view;
FIG. 3 is a schematic block diagram illustrating a projector according to an embodiment of the present utility model;
fig. 4 is a schematic diagram showing module connection of another embodiment of a projector according to an embodiment of the utility model.
Detailed Description
The conception and technical effects of the present utility model will be clearly and completely described in conjunction with the following examples to fully understand the objects, features and effects of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present utility model based on the embodiments of the present utility model.
In the description of the embodiments of the present utility model, if "several" is referred to, it means more than one, if "multiple" is referred to, it is understood that the number is not included if "greater than", "less than", "exceeding", and it is understood that the number is included if "above", "below", "within" is referred to. If reference is made to "first", "second" it is to be understood as being used for distinguishing technical features and not as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
Referring to fig. 1, an embodiment of the present utility model provides a projector LED light source, which includes a substrate 100, a plurality of LED chips 200, a temperature signal acquisition unit 300, and a connection terminal 400; the substrate 100 is provided with a die bonding area, a plurality of LED chips 200 are disposed on the die bonding area, and the temperature signal acquisition unit 300 and the connection terminal 400 are fixedly disposed on the substrate 100. The connection terminals 400 are electrically connected with the temperature signal acquisition unit 300 and the plurality of LED chips 200 respectively. In this embodiment, the temperature signal acquisition unit 300 is configured to acquire temperature information of the substrate 100, transmit the acquired temperature information to an external controller through the connection terminal 400, and output control signals (i.e., external control signals) to control the working states of the LED chips 200 through the connection terminal 400 after the external controller receives the temperature information. In this embodiment, the temperature information of the substrate 100 is collected by the temperature collection unit 300, and after the temperature information is transmitted to the external controller through the connection terminal 400, the external controller outputs external control signals to control the working states of the LED chips 200, which can effectively prevent the technical problem of short service life of the projector LED light source caused by the fact that the projector LED light source works in an environment exceeding the preset temperature threshold for a long time, and provides a projector LED light source with long service life, which can detect the temperature of the projector LED light source.
In some embodiments, in order to be able to accurately acquire temperature information of the substrate 100, the temperature signal acquisition unit 300 includes a thermistor or a thermocouple. When the temperature signal acquisition unit 300 adopts a thermistor, the thermistor is fixed on the substrate 100 and is electrically connected with the wiring terminal 400, and the thermistor is used for transmitting temperature information of the substrate 100 to an external controller through the wiring terminal 400 after acquiring the temperature information; when the temperature of the substrate 100 increases, the resistance of the thermistor disposed on the substrate 100 is changed, and the resistance corresponds to the temperature information, so that the temperature information of the substrate 100 is collected. When the temperature signal acquisition unit 300 is implemented by adopting a thermocouple, the thermocouple is fixed on the substrate 100 and is electrically connected with the wiring terminal 400, and the thermocouple is used for transmitting the temperature information of the substrate 100 to an external controller through the wiring terminal 400 after acquiring the temperature information; when the temperature of the substrate 100 increases, the voltage value of the thermocouple is changed, and the voltage value corresponds to the temperature information, so that the temperature information of the substrate 100 is collected.
In some embodiments, in order to enable the plurality of LED chips 200 disposed on the die bonding region to operate in various manners, the connection relationship between the respective LED chips 200 may exist as a series or parallel connection.
Referring to fig. 2, in some embodiments, in order to improve the light emitting efficiency of the projection LED light source according to the embodiment of the present utility model, a plurality of LED chips 200 are closely fixed in an array structure on a substrate 100. By tightly arranging the plurality of LED chips 200 in an array structure, light emitted by the plurality of LED chips 200 can be effectively concentrated, high illuminance output is achieved, and the area occupied by the die bonding area on the substrate 100 is effectively reduced.
Referring to fig. 2, in some embodiments, the substrate 100 is an aluminum flip substrate, and the connection lines of the plurality of LED lamps 200 and the connection terminals 400, the connection lines of the temperature signal acquisition unit 300 and the connection terminals 400, and the interface lines of the connection terminals 400 themselves on the aluminum flip substrate are etched by a high-precision exposure machine to form the surface copper foil layer of the aluminum flip substrate. The heat generated during the working of the LED light source of the projector can be effectively dissipated by adopting the inverted aluminum substrate, the weight of the inverted aluminum substrate is light, and meanwhile, the wiring terminal 400 is arranged, so that the LED light source of the projector can be quickly installed and connected with an external device when being installed and used.
Referring to fig. 2, in some embodiments, a die bonding region (i.e., a region where a plurality of LED chips 200 are disposed) is disposed in a central region of the substrate 100, and the plurality of LED chips 200 are fixedly disposed in an array structure on the die bonding region; the fixed setting position of the temperature signal acquisition unit 300 has a preset distance with the die bonding area, and the preset distance is set with the die bonding area by the set aim: when the copper foil layer on the surface of the inverted aluminum substrate is etched, construction operation is more convenient; meanwhile, the temperature information of the basic 100 can be acquired more accurately, and the influence of the light emission of the plurality of LED chips 200 when the plurality of LED chips 200 are too close to acquire the temperature information is prevented, so that the acquisition of the temperature information generates larger deviation. Meanwhile, in the present embodiment, the connection terminal 400 is disposed at the edge region of the substrate 100, and when the connection terminal 400 is connected to the external connection terminal, the connection can be simply and rapidly implemented by disposing the connection terminal 400 at the edge region of the substrate 100.
Referring to fig. 2, in addition, in some embodiments, a plurality of fixing through holes 500 are further provided on the substrate 100, and are fixedly coupled with the plurality of fixing through holes 500 by fixing members (screws, etc.) for fixedly mounting the projector LED light source. In addition, the plastic housing is arranged on the interface circuit of the wiring terminal 400, and the plastic housing is provided with the buckle structure, so that the external wiring terminal can be fixed under the action of the buckle structure and is not easy to fall off when the wiring terminal 400 is connected with the external wiring terminal, and the connection circuit arranged on the external wiring terminal is tightly connected with the interface circuit of the interface terminal 400, so that the convenience in mounting and using the LED light source of the projector is further improved.
Referring to fig. 3, an embodiment of the present utility model provides a projector including a projector main body and the projector LED light source set forth in any one of the above embodiments; the projector comprises a projector body, wherein the projector body comprises a controller, the controller is connected to a wiring terminal through a connecting wire, a temperature signal acquisition unit in an LED light source of the projector transmits acquired temperature information of a substrate to the controller through the wiring terminal, and the controller outputs control signals to control working states of a plurality of LED chips through the wiring terminal after receiving the temperature information. The working states of the LED chips mainly comprise the power of the LED chips, and when the temperature information received by the controller is higher than a preset threshold value, the output power of the LED chips can be reduced through the output control signal, so that the problem that the temperature is increased and the service lives of the projector LED light source and other devices inside the projector are influenced due to the fact that the LED chips in the projector LED light source are in a high-power working state for a long time is avoided.
Referring to fig. 4, in some embodiments, the projector further includes a heat dissipation module electrically connected to the controller. In this embodiment, after receiving the temperature information of the substrate transmitted by the temperature signal acquisition unit, the controller may compare with a preset threshold according to the received temperature information, and when the received temperature information is higher than the preset threshold, not only output control signals to control the plurality of LED chips to reduce the output work rate, but also output control signals to control the heat dissipation module to start the corresponding heat dissipation level to accelerate the heat dissipation of the projector, so that the temperature of the projector (including the substrate of the projector LED light source) is reduced rapidly.
Further, in one embodiment, the heat dissipation module in the above embodiment may be implemented by a fan.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model. Furthermore, embodiments of the utility model and features of the embodiments may be combined with each other without conflict.
Claims (10)
1. A projector LED light source, comprising:
the substrate is provided with a die bonding area;
the LED chips are fixedly arranged on the die bonding area;
the temperature signal acquisition unit is fixedly arranged on the substrate and used for acquiring temperature information of the substrate;
the wiring terminal is arranged on the substrate, is electrically connected with the temperature signal acquisition unit and is used for receiving the temperature information and transmitting the temperature information to an external controller; the wiring terminal is also electrically connected with the LED chips and used for receiving external control signals, and the external control signals control the working states of the LED chips.
2. The projector LED light source of claim 1, wherein the temperature signal acquisition unit comprises a thermistor or thermocouple;
the thermistor is electrically connected with the wiring terminal and is used for transmitting the temperature information to the external controller through the wiring terminal;
the thermocouple is electrically connected with the wiring terminal and used for transmitting the temperature information to the external controller through the wiring terminal.
3. The LED light source of claim 1 or 2, wherein a plurality of the LED chips are electrically connected in series or parallel.
4. A projector LED light source as recited in claim 3, wherein a plurality of the LED chips are fixedly disposed in an array configuration in the die attach region.
5. The projector LED light source of claim 1, 2 or 4, wherein the substrate is a flip-chip aluminum substrate;
etching the copper foil layer on the surface of the inverted aluminum substrate through a high-precision exposure machine to form a connecting circuit;
the connecting circuit comprises a plurality of connecting circuits of the LED chips and the wiring terminals, connecting circuits of the temperature signal acquisition units and the wiring terminals and interface circuits of the wiring terminals.
6. The projector LED light source of claim 5, wherein the interface circuit of the terminal is provided with a plastic housing provided with a snap-fit structure for connection with an external terminal.
7. The projector LED light source of claim 1, wherein the die attach region is disposed in a central region of the substrate;
a preset distance exists between a fixed setting area of the temperature signal acquisition unit and the die bonding area;
the terminal is disposed on an edge region of the substrate.
8. A projector comprising a projector main body and the projector LED light source as claimed in any one of claims 1 to 7;
the projector main body comprises a controller, the controller is connected with the wiring terminals through connecting wires, and the controller receives the temperature information and outputs control signals to control the working states of the LED chips.
9. The projector of claim 8, further comprising a heat dissipation module electrically connected to the controller; and after receiving the temperature information, the controller outputs a control signal to control the working state of the heat radiation module.
10. The projector of claim 9, wherein the heat dissipation module comprises a fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321020175.XU CN220491174U (en) | 2023-04-28 | 2023-04-28 | Projector LED light source and projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321020175.XU CN220491174U (en) | 2023-04-28 | 2023-04-28 | Projector LED light source and projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220491174U true CN220491174U (en) | 2024-02-13 |
Family
ID=89838961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321020175.XU Active CN220491174U (en) | 2023-04-28 | 2023-04-28 | Projector LED light source and projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220491174U (en) |
-
2023
- 2023-04-28 CN CN202321020175.XU patent/CN220491174U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A projector LED light source and projector Granted publication date: 20240213 Pledgee: Agricultural Bank of China Limited Zhongshan Nancheng Branch Pledgor: SHENZHEN LEPOWER OPTO ELECTRONICS Co.,Ltd. Registration number: Y2024980041798 |