CN219036552U - COB lamp area - Google Patents
COB lamp area Download PDFInfo
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- CN219036552U CN219036552U CN202223593391.1U CN202223593391U CN219036552U CN 219036552 U CN219036552 U CN 219036552U CN 202223593391 U CN202223593391 U CN 202223593391U CN 219036552 U CN219036552 U CN 219036552U
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- strip
- pin
- circuit board
- conductive foil
- solder
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Abstract
The utility model discloses a COB (chip on board) lamp strip, which comprises a strip-shaped circuit board, wherein the strip-shaped circuit board comprises two parallel conductive foils, the length direction of each conductive foil is arranged along the extending direction of the strip-shaped circuit board, each conductive foil is provided with a first end part, each first end part is provided with a welding point, each welding point is used for being connected with another strip-shaped circuit board, each conductive foil is further provided with a pin strip, each pin strip is arranged on one side, close to the two conductive foils, of each conductive foil, each pin strip is arranged side by side with the first end parts, each pin strip is provided with soldering tin points, each soldering tin point is used for being connected with a luminous chip, one end, far away from each welding point, of each pin strip is connected with each first end part, and a heat insulation notch is formed between each pin strip and each first end part. The COB lamp strip can reduce heat conduction, prevent the light emitting chip from falling off, and facilitate narrower design of the lamp strip.
Description
Technical Field
The utility model relates to a lamp strip structure, in particular to a COB lamp strip.
Background
The COB lamp strip is a novel lamp strip design, and is provided with a circuit board and a light-emitting chip positioned on the circuit board, wherein the light-emitting chip is fixed on the circuit board through soldering tin.
Welding spots can be arranged at two ends of the COB lamp strip, so that two lamp strips can be conveniently connected and conducted to form a longer lamp strip.
Along with the development of social life, the design of the COB lamp strip is also narrower and narrower.
However, the distance between the welding spot and the light-emitting chip is shortened, and when two lamp strips are required to be welded together, heat generated by welding is transferred to soldering tin through the welding spot, so that the soldering tin is heated and melted, and the light-emitting chip is separated.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the COB lamp strip provided by the utility model can reduce heat conduction, prevent the light emitting chip from falling off, and facilitate the design of the lamp strip to be narrower.
According to the COB lamp strip, the COB lamp strip comprises a strip-shaped circuit board, the strip-shaped circuit board comprises two parallel conductive foils, the length direction of each conductive foil is arranged along the extending direction of the strip-shaped circuit board, each conductive foil is provided with a first end portion, each first end portion is provided with a welding point, each welding point is used for being connected with another strip-shaped circuit board, each conductive foil is further provided with a pin strip, each pin strip is arranged on one side, close to the two conductive foils, of each conductive foil, each pin strip is arranged side by side with the corresponding first end portion, each pin strip is provided with a soldering tin point, each soldering tin point is used for being connected with a light-emitting chip, one end, far away from each welding point, of each pin strip is connected with the corresponding first end portion, and a heat insulation notch is formed between each pin strip and each first end portion.
According to the COB lamp strip, the conductive foil further comprises the connecting arms, wherein the connecting arms are used for connecting the first end part and the pin bars, and the connecting arms are provided with fillets used for forming the heat insulation gaps.
According to the COB lamp strip provided by the embodiment of the utility model, the soldering tin point is arranged on one side of the pin strip away from the first end part.
According to the COB lamp strip provided by the embodiment of the utility model, two soldering tin points are arranged, and the two soldering tin points are sequentially arranged along the length direction of the pin strip.
According to the COB lamp strip provided by the embodiment of the utility model, the pin strip comprises the first strip part and the second strip part which are arranged side by side, the pin strip further comprises the connecting part for connecting the middle parts of the first strip part and the second strip part, the first strip part and the first end part form the heat insulation gap, the second strip part is arranged on one side of the first strip part far away from the first end part, and the second strip part is provided with the soldering tin point.
According to the COB lamp strip provided by the embodiment of the utility model, one soldering tin point is arranged at two ends of the second strip part.
According to the COB lamp strip provided by the embodiment of the utility model, the second strip part is provided with the side protruding points, the side protruding points are positioned on one side of the second strip part, which is away from the first strip part, and one side protruding point is used for forming one soldering tin point.
The COB lamp strip provided by the embodiment of the utility model has at least the following beneficial effects:
according to the utility model, the strip-shaped circuit board is provided with two parallel conductive foils, so that one conductive foil is used for connecting the anode and the other conductive foil is used for connecting the cathode, and the electricity connection requirement of the lamp strip is met.
The first end part is provided with the welding point, so that the two strip-shaped circuit boards are conveniently connected in parallel, the requirement of lengthening the lamp strip is met, the voltage of the strip-shaped circuit boards is not changed, and the irradiation effect is not influenced.
According to the utility model, the pin bars are arranged on one side, close to the two conductive foils, of each pin bar, the pin bars and the first end parts are arranged side by side, the pin bars are provided with soldering tin points, the soldering tin points are used for connecting the light-emitting chips, one ends, far away from the welding points, of the pin bars are connected with the first end parts, and heat insulation gaps are formed between the pin bars and the first end parts, so that when the welding points are welded, heat is conducted to the middle parts of the conductive foils, and is transferred to the pin bars through one ends, far away from the welding points, of the pin bars, so that the heat transfer path is prolonged, the heat transferred to the soldering tin points is reduced, the soldering tin points are prevented from being heated to melt, and the light-emitting chips are prevented from falling off, and the lamp strip can be designed narrower.
Meanwhile, due to improved heat dissipation, soldering tin points can be arranged at two ends of the strip-shaped circuit board more closely, luminous dead zones on the strip-shaped circuit board are reduced, the irradiation effect of the lamp strip is improved, and the shortest unit of the lamp strip can be made shorter and is wider in application.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic structural diagram of a COB light strip according to an embodiment of the utility model;
fig. 2 is a schematic partial structure of a COB light strip shown in fig. 1.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed 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.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
A COB light strip according to an embodiment of the present utility model is described below with reference to the accompanying drawings.
Referring to fig. 1 and 2, the present utility model is directed to an embodiment of a COB light strip.
In this embodiment, the COB light strip may be one light strip unit, that is, this embodiment is the minimum unit of light strip cutting use.
In design, this embodiment should not be re-shortened, otherwise normal operation of the light strip would be affected.
In some specific embodiments of the present utility model, the light strip of the present embodiment includes a strip-shaped circuit board and a light emitting chip, the strip-shaped circuit board forming a circuit arrangement for facilitating power supply to the light emitting chip.
In some specific embodiments of the present utility model, the lamp strip further has a resistive member, and the resistive member and the light emitting chip are fixed in the same fixing manner, thereby improving voltage distribution.
In some embodiments of the present utility model, the strip-shaped circuit board includes two conductive foils 100 arranged side by side, and the length direction of the conductive foils 100 is along the extending direction of the strip-shaped circuit board.
It is easy to understand that the strip-shaped circuit board is provided with two side-by-side conductive foils 100, so that one conductive foil 100 is used for connecting the positive electrode and one conductive foil 100 is used for connecting the negative electrode, thereby meeting the power-on requirement of the lamp strip.
In some specific embodiments of the present utility model, the conductive foil 100 has a first end 110, the first end 110 being provided with a solder joint 120, the solder joint 120 being for connecting to another strip-shaped circuit board.
It is easy to learn that, in this embodiment, by setting the first end 110, the first end 110 has the welding point 120, so that two strip-shaped circuit boards are conveniently connected in parallel, which not only meets the requirement of lengthening the lamp strip, but also does not change the voltage of the strip-shaped circuit boards and does not affect the irradiation effect.
In some specific embodiments of the present utility model, the conductive foil 100 further has a lead bar 130, the lead bar 130 is disposed on a side of the two conductive foils 100 close to each other, the lead bar 130 is disposed side by side with the first end 110, the lead bar 130 is provided with a solder point 140, the solder point 140 is used for connecting the light emitting chip, one end of the lead bar 130 away from the soldering point 120 is connected to the first end 110, and a heat insulation gap 200 is formed between the lead bar 130 and the first end 110.
It is easy to learn that, in this embodiment, by setting the lead bar 130, the lead bar 130 is disposed on one side of the two conductive foils 100 close to each other, the lead bar 130 and the first end 110 are disposed side by side, the lead bar 130 is provided with the solder point 140, the solder point 140 is used for connecting the light emitting chip, one end of the lead bar 130 far away from the soldering point 120 is connected with the first end 110, and the heat insulation gap 200 is formed between the lead bar 130 and the first end 110, so when the soldering point 120 is soldered, heat is conducted to the middle part of the conductive foil 100, and is transferred to the lead bar 130 through one end of the lead bar 130 far away from the soldering point 120, so that the heat transfer path is prolonged, the heat transferred to the solder point 140 is reduced, the solder is prevented from being heated to melt the solder point 140, and the light emitting chip is prevented from falling off, and the lamp strip can be designed narrower.
Meanwhile, due to improved heat dissipation, the soldering tin points 140 can be arranged closer to the two ends of the strip-shaped circuit board, so that the luminous dead zone on the strip-shaped circuit board is reduced, the irradiation effect of the lamp strip is improved, and the shortest unit of the lamp strip can be made shorter, so that the application is wider.
In some specific embodiments of the present utility model, the lead bars 130 of the conductive foils 100 of the two strip-shaped circuit boards are disposed at both ends of the strip-shaped circuit boards, and the strip-shaped circuit boards further have middle bars for transit connection, so that a plurality of light emitting chips are conveniently connected in series, thereby subdividing a large voltage into a plurality of small voltages, and satisfying the voltage setting requirements of the light emitting chips.
In some specific embodiments of the present utility model, the conductive foil 100 further comprises connection arms 150, the connection arms 150 for connecting the first end 110 and the lead strip 130, the connection arms 150 having fillets for forming the insulation gap 200.
It is easy to understand that, by providing the connection arms 150, the connection arms 150 have fillets, so that, on one hand, heat transfer can be reduced, and on the other hand, stress is dispersed, and the conductive foil 100 is prevented from being pulled and broken, and conductivity is not affected.
In some embodiments of the present utility model, the solder points 140 are disposed on a side of the lead strip 130 away from the first end 110.
It is easy to learn that, by improving the positions of the solder points 140, the distance between the light emitting chip and the solder points 120 can be increased, so that on one hand, the heating of the solder points 140 is further reduced, and on the other hand, the heat radiation to which the light emitting chip is subjected can be reduced, thereby protecting the light emitting chip.
In some embodiments of the present utility model, two solder points 140 are provided, and the two solder points 140 are disposed sequentially along the length of the lead 130.
It is easy to understand that, since the heating is improved in this embodiment, more than one solder dot 140 can be conveniently arranged on the lead bar 130, and thus, two light emitting chips are arranged, so that uneven arrangement of the light emitting chips on the lamp strip is avoided, and the irradiation effect is improved.
In some specific embodiments of the present utility model, the lead strip 130 includes a first strip 160 and a second strip 170, which are arranged side by side, the lead strip 130 further includes a connection portion 180 connecting the first strip 160 and the middle of the second strip 170, the first strip 160 forms a heat insulation gap 200 with the first end 110, the second strip 170 is disposed on a side of the first strip 160 away from the first end 110, and the second strip 170 is disposed with a solder dot 140.
It will be readily appreciated that the present embodiment further reduces heat conduction to the solder bumps 140 by improving the placement of the lead strips 130.
In addition, the above arrangement improves the stress of the solder points 140 on the lead strip 130, and further, when the lamp strip is bent under the stress of the width direction, the first strip 160 is prevented from directly applying the acting force to the end of the second strip 170 along the width direction of the lamp strip, the end of the second strip 170 is prevented from deforming, the end of the second strip 170 is prevented from being stripped from the light emitting chip, and the lamp strip is prevented from being broken down.
In some embodiments of the present utility model, one solder dot 140 is provided at each end of the second strip 170.
It is easy to understand that in the limited space, the embodiment can be provided with one more solder dot 140, and one more light emitting chip can be arranged, so as to enhance the irradiation effect.
In some embodiments of the present utility model, the second strip 170 is provided with side bumps 190, the side bumps 190 being located on a side of the second strip 170 facing away from the first strip 160, one side bump 190 being used to form one solder dot 140.
It is easy to understand that, in this embodiment, by setting the side bumps 190, the area of the solder points 140 can be increased, so that the solder points 140 are prevented from being narrow, and further, the solder connection strength is increased, and the fixing strength of the light emitting chip is improved, so that the light emitting chip is not easy to fall off.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
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.
Claims (7)
1. The utility model provides a COB lamp area, its characterized in that, includes the bar circuit board, the bar circuit board includes two conductive foils side by side, the length direction of conductive foil is followed the extending direction of bar circuit board sets up, the conductive foil has first tip, first tip is provided with the welding point, the welding point is used for connecting another bar circuit board, the conductive foil still has the pin strip, the pin strip set up in two one side that the conductive foil is close to mutually, the pin strip with first tip sets up side by side, the pin strip is provided with soldering tin point, the soldering tin point is used for connecting luminous chip, the pin strip is kept away from the one end of welding point is connected first tip, the pin strip with form thermal-insulated breach between the first tip.
2. The COB light bar of claim 1 wherein the conductive foil further comprises a connecting limb for connecting the first end and the pin strip, the connecting limb having a fillet for forming the insulating gap.
3. The COB lamp strip of claim 1, wherein the solder dots are disposed on a side of the lead strip remote from the first end.
4. The COB lamp strip of claim 1, wherein two solder points are provided, and two solder points are sequentially provided along the length direction of the lead strip.
5. The COB lamp strip of claim 1, wherein said lead strip comprises a first strip portion and a second strip portion side by side, said lead strip further comprises a connecting portion connecting the middle portions of said first strip portion and said second strip portion, said first strip portion and said first end portion form said heat insulation gap, said second strip portion is disposed on a side of said first strip portion remote from said first end portion, and said second strip portion is disposed with said solder dot.
6. The COB lamp strip of claim 5, wherein said second strip has one of said solder dots at each end.
7. The COB lamp strip of claim 5, wherein said second strip is provided with side bumps, said side bumps being located on a side of said second strip facing away from said first strip, one of said side bumps being used to form one of said solder dots.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223593391.1U CN219036552U (en) | 2022-12-29 | 2022-12-29 | COB lamp area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223593391.1U CN219036552U (en) | 2022-12-29 | 2022-12-29 | COB lamp area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219036552U true CN219036552U (en) | 2023-05-16 |
Family
ID=86276889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223593391.1U Active CN219036552U (en) | 2022-12-29 | 2022-12-29 | COB lamp area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219036552U (en) |
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2022
- 2022-12-29 CN CN202223593391.1U patent/CN219036552U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |