CN211952695U - Lamp tube overheat protection device - Google Patents
Lamp tube overheat protection device Download PDFInfo
- Publication number
- CN211952695U CN211952695U CN202020170492.XU CN202020170492U CN211952695U CN 211952695 U CN211952695 U CN 211952695U CN 202020170492 U CN202020170492 U CN 202020170492U CN 211952695 U CN211952695 U CN 211952695U
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- China
- Prior art keywords
- lamp tube
- overheat protection
- heating device
- temperature fuse
- protection device
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Abstract
The utility model provides a fluorescent tube overheat protection device sets up at least one in the fluorescent tube and has the control circuit board and at least one of circuit and set up in control circuit board and connect in the device that generates heat of circuit, and wherein the device that generates heat can improve whole drive power supply's security by binding the fixed at least one temperature fuse of a piece laminating to whole drive power supply temperature fuse is not traditional only protects also can be other main lines or branch road and protects.
Description
Technical Field
The utility model relates to a lamp tube, in particular to a lamp tube overheat protection device.
Background
The traditional lamp tube is sometimes inevitable to be used, the potential safety hazard is generated because the lamp holder contact is oxidized, the lamp holder contact is in poor contact with the copper needle of the lamp tube, the contact point copper needle is too high in temperature due to poor contact, and arcing and arc drawing, the temperature fuse is connected to each copper pin in series, so that the temperature fuse can be rapidly fused and protected when high temperature is generated due to arcing and arc drawing. However, in some cases, overheating occurs in other parts, and potential safety hazards occur in the lamp tube due to thermal runaway caused by overhigh temperature caused by internal or external factors, and the use method of the temperature fuse is adjusted according to the situation.
How to use the thermal fuse to improve the safety of the lamp tube is a problem that the related manufacturers must consider.
SUMMERY OF THE UTILITY MODEL
In view of the above, an embodiment of the present invention provides an overheat protection device for a lamp tube, wherein at least one control circuit board having a circuit and at least one heating element are disposed in the lamp tube, the at least one control circuit board being connected to the circuit and disposed on the control circuit board, and the at least one heating element is attached to the heating element and an adhesive element disposed on the heating element and fixing the temperature fuse.
According to a preferred embodiment of the above lamp tube overheat protection device, the plurality of thermal fuses are attached to be serially connected to the circuit and attached to the heat generating device.
In a preferred embodiment of the above overheat protection device for a lamp tube, the adhesive member is a phenolic resin, a urea-formaldehyde resin, a polyvinyl acetate resin, a polyethylene-vinyl acetate resin, a polyacrylic resin, a polyurethane, or a hot melt adhesive.
According to a preferred embodiment of the above overheat protection device for a lamp tube, the heat generating device is a varistor, a coil or a transformer.
In conclusion, according to the utility model discloses a fluorescent tube overheat protection device of an embodiment or a plurality of embodiments has following characteristic, utilizes the laminating of temperature fuse to fix at the device that generates heat, can improve whole drive power supply's security to whole drive power supply temperature fuse is not traditional only protects the input also can be other main lines or branch road and protects.
Drawings
Fig. 1 is a perspective view of a single overheat protection device according to the present invention;
fig. 2 is a schematic diagram of a plurality of overheat protection devices according to the present invention.
Description of reference numerals:
the lamp comprises a lamp tube 1, a control circuit board 2, a circuit 20, a heating device 3, a temperature fuse 4 and a bonding piece 5.
The detailed features and advantages of the present invention are described in detail in the following embodiments, which are sufficient for anyone skilled in the art to understand the technical content of the present invention and to implement the present invention, and the related objects and advantages can be easily understood by anyone skilled in the art according to the disclosure, claims and drawings of the present specification.
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
The voltage impedance signal identification device in the detection and control assembly is utilized to identify the voltage input by the commercial power or the voltage input by the electronic ballast, thereby simplifying the whole drive circuit, reducing the occupation of the circuit board space and lowering the cost. In addition, the anti-creeping test can be carried out, and the electric shock caused by the mistaken touch of a user is avoided. Please refer to fig. 1 and fig. 2, which are a schematic perspective view of a single overheating protection device and a schematic setting view of a plurality of overheating protection devices according to the present invention.
The utility model relates to a fluorescent tube overheat protection device sets up an at least control circuit board 2 and at least heating device 3 in fluorescent tube 1, and control circuit board 2 utensil circuit 20, and heating device 3 sets up on control circuit board 2 and is connected in circuit 20, and wherein temperature fuse 4 utilizes 5 laminatings of the piece of gluing to set up in heating device 3, and 5 settings of the piece of gluing are in order to fix temperature fuse 4 position between temperature fuse 4 and heating device 3. Wherein the adhesive 5 is phenolic resin, urea-formaldehyde resin, polyvinyl acetate resin, polyethylene-vinyl acetate resin, polyacrylic resin, polyurethane or hot melt adhesive. And the heat generating device 3 is a varistor, a coil, or a transformer.
As can be understood from fig. 1, the heating device 3 on the control circuit board 2 is exemplified by a varistor, the thermal fuse 4 is attached to the heating device 3 first, when the temperature fuse 4 is fixed on the heating device 3 by the adhesive 5, the heating device 3 connected on the control circuit board 2 is abnormally heated due to the resistance increase of the heating device 3 caused by the abnormality of the circuit 20, the operation principle of the thermal fuse 4 is that when the current is over-head, the temperature rises and then reaches the element dissolution point of the fuse metal, at the moment, the metal element forms two small round points backwards and is simultaneously disconnected, because the temperature fuse 4 is tightly attached to the heating device 3, the temperature received by the utility model is most direct and rapid, thereby effectively improving the safety of the whole driving power supply, and the whole driving power supply temperature fuse can not only protect the input end in the traditional way, but also protect other main lines or branches.
In addition, in fig. 2, a plurality of temperature fuses 4 are adopted and are tightly attached to the heating device 3 which may cause thermal runaway in an abnormal state, and the temperature fuses 4 are connected in series to the circuit 20 of the control circuit board 2, so that the temperature fuses 4 can immediately cut off the circuit 20 to avoid potential safety hazards caused by expansion of an abnormal range when the temperature of the heating device 3 is abnormally increased.
In conclusion, according to the utility model discloses a fluorescent tube overheat protection device of an embodiment or a plurality of embodiments has following characteristic, utilizes the laminating of temperature fuse to fix at the device that generates heat, can improve whole drive power supply's security to whole drive power supply temperature fuse is not traditional only protects the input also can be other main lines or branch road and protects.
It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the protection scope of the present invention.
Claims (4)
1. A lamp tube overheat protection device is characterized in that at least one temperature fuse is arranged on the heating device in an attaching mode, the attaching piece is arranged on the heating device in an attaching mode, and the attaching piece is arranged between the temperature fuse and the heating device to fix the position of the temperature fuse.
2. A lamp tube overheat protection apparatus as claimed in claim 1, wherein: the temperature fuses are attached to the circuit in series and attached to the heating device.
3. A lamp tube overheat protection apparatus as claimed in claim 1, wherein: the adhesive is phenolic resin, urea-formaldehyde resin, polyvinyl acetate resin, polyethylene-vinyl acetate resin, polyacrylic resin, polyurethane or hot melt adhesive.
4. A lamp tube overheat protection apparatus as claimed in claim 1, wherein: the heating device is a piezoresistor, a coil or a transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020170492.XU CN211952695U (en) | 2020-02-14 | 2020-02-14 | Lamp tube overheat protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020170492.XU CN211952695U (en) | 2020-02-14 | 2020-02-14 | Lamp tube overheat protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211952695U true CN211952695U (en) | 2020-11-17 |
Family
ID=73174505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020170492.XU Active CN211952695U (en) | 2020-02-14 | 2020-02-14 | Lamp tube overheat protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211952695U (en) |
-
2020
- 2020-02-14 CN CN202020170492.XU patent/CN211952695U/en active Active
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