CN216313464U - Line lamp and cupboard lighting device convenient to cut - Google Patents
Line lamp and cupboard lighting device convenient to cut Download PDFInfo
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- CN216313464U CN216313464U CN202122006418.1U CN202122006418U CN216313464U CN 216313464 U CN216313464 U CN 216313464U CN 202122006418 U CN202122006418 U CN 202122006418U CN 216313464 U CN216313464 U CN 216313464U
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Abstract
The utility model provides a line lamp and a cupboard lighting device convenient to cut off, aiming at overcoming the problems that a tail dark space appears after the existing line lamp is cut off and the damage influence of individual lamp beads is large, wherein the line lamp comprises a plurality of first conduction nodes, a plurality of second conduction nodes and a plurality of lamp string branch circuits, the lamp string branch circuits are sequentially arranged at intervals along a linear extension direction, each lamp string branch circuit comprises a plurality of electric connection conductors and a plurality of loads, the plurality of loads comprise a plurality of lamp beads and at least one current-limiting resistor, two adjacent loads are electrically conducted through a single electric connection conductor, the load positions on the two adjacent lamp string branch circuits are in one-to-one correspondence, one ends of the two loads at corresponding positions are connected through the single first conduction node, and the other ends of the two loads at corresponding positions are connected through the single second conduction node. The line lamp provided by the utility model can be cut off at any length and normally used, and the light-emitting uniformity is ensured in the using process.
Description
Technical Field
The utility model belongs to the technical field of lighting devices, and particularly relates to a line lamp convenient to cut off and a cabinet lighting device.
Background
The LED line lamp is widely used in various fields of illumination and decorative illumination, and is mainly used for arrangement of household cabinets, indoor and outdoor decoration, exhibition halls and the like. Most of the LED line lamps in the market are driven by constant voltage, and the most common driving power voltage is DC 12V. The circuit connection mostly adopts the mode of connecting in series after the parallel, namely 3 LED lamps and 1 current-limiting resistor series connection be a branch road, then all branch roads are connected in parallel on positive negative power, have some defects in the practical application, and the line lamp is in practical use, can often cut off some length because of the restriction of assembly size and spatial position in the field assembly process. After the traditional line lamp is cut for a part of the length, at least 1 or 2 lamp beads in the cut lamp string branch circuit are not lighted (unless the cutting position is exactly at the head and tail parts of the lamp string branch circuit). Because the tail of one lamp bead or two lamp beads is not bright, the tail of the lamp strip has a dark area, and the decorative effect is seriously influenced. In addition, in the long-term actual use process of the lamp strip, a very individual lamp bead may be damaged due to various reasons, so that other 2 lamp beads of the branch where the lamp bead is located are certainly not bright, the affected area is enlarged, and the illumination light is not uniform and the appearance effect is affected.
SUMMERY OF THE UTILITY MODEL
The utility model provides a line lamp convenient to cut off and a cabinet lighting device, aiming at the problems that a tail dark space appears after the existing line lamp is cut and the damage influence of individual lamp beads is large.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
in one aspect, the utility model provides a line lamp convenient to cut off, which comprises a plurality of first conduction nodes, a plurality of second conduction nodes and a plurality of lamp string branches, wherein the lamp string branches are sequentially arranged at intervals along a linear extension direction, each lamp string branch comprises a plurality of electric connection conductors and a plurality of loads, each load comprises a plurality of lamp beads and at least one current-limiting resistor, two adjacent loads are electrically conducted through one electric connection conductor, the load positions on two adjacent lamp string branches are in one-to-one correspondence, one ends of the two loads at corresponding positions are connected through one first conduction node, and the other ends of the two loads at corresponding positions are connected through one second conduction node.
Furthermore, the line lamp is of a linear structure extending along the linear extending direction, a positive end and a negative end are formed on the line lamp, a load at one end of the light string branch circuit is electrically connected to the positive end through the first conduction node, and a load at the other end of the light string branch circuit is electrically connected to the negative end through the second conduction node.
Furthermore, a single lamp string branch comprises 4 lamp beads and 1 current-limiting resistor.
Furthermore, the lamp beads are LED lamps.
Furthermore, the lamp string branch comprises a first LED lamp, a second LED lamp, a third LED lamp, a fourth LED lamp, a current-limiting resistor, a first electric connecting conductor, a second electric connecting conductor, a third electric connecting conductor and a fourth electric connecting conductor, the first LED lamp, the current-limiting resistor, the second LED lamp, the third LED lamp and the fourth LED lamp are sequentially arranged at intervals along the extension direction of the lamp string branch, two ends of the first electric connection conductor are respectively and electrically connected with the negative electrode end of the first LED lamp and the current limiting resistor, two ends of the second electric connection conductor are respectively and electrically connected with the current-limiting resistor and the positive terminal of the second LED lamp, two ends of the third electric connection conductor are respectively and electrically connected with the cathode end of the second LED lamp and the anode end of the third LED lamp, and two ends of the fourth electric connection conductor are respectively and electrically connected with the negative electrode end of the third LED lamp and the positive electrode end of the fourth LED lamp.
Further, in two adjacent light string branch circuits, a positive terminal of a first LED lamp of one light string branch circuit and a positive terminal of a first LED lamp of the other light string branch circuit are electrically connected through one first conduction node, a negative terminal of the first LED lamp of one light string branch circuit and a negative terminal of the first LED lamp of the other light string branch circuit are electrically connected through one second conduction node, one end of a current-limiting resistor of one light string branch circuit and one end of a current-limiting resistor of the other light string branch circuit are electrically connected through one first conduction node, the other end of the current-limiting resistor of one light string branch circuit and the other end of the current-limiting resistor of the other light string branch circuit are electrically connected through one second conduction node, a positive terminal of a second LED lamp of one light string branch circuit and a positive terminal of a second LED lamp of the other light string branch circuit are electrically connected through one first conduction node, the negative end of the second LED lamp of one lamp string branch circuit is electrically connected with the negative end of the second LED lamp of the other lamp string branch circuit through one second conduction node, the positive end of the third LED lamp of one lamp string branch circuit is electrically connected with the positive end of the third LED lamp of the other lamp string branch circuit through one first conduction node, the negative end of the third LED lamp of one lamp string branch circuit is electrically connected with the negative end of the third LED lamp of the other lamp string branch circuit through one second conduction node, the positive end of the fourth LED lamp of one lamp string branch circuit is electrically connected with the positive end of the fourth LED lamp of the other lamp string branch circuit through one first conduction node, and the negative end of the fourth LED lamp of one lamp string branch circuit is electrically connected with the negative end of the fourth LED lamp of the other lamp string branch circuit through one second conduction node.
Furthermore, the line lamp further comprises a supporting shell, and the first conduction node, the second conduction node and the lamp string branch are arranged in the supporting shell.
Further, the support housing is a flexible housing or a rigid housing.
In another aspect, the utility model provides a cabinet lighting device comprising a line lamp as described above.
In the line lamp provided by the utility model, a plurality of loads form a lamp string branch circuit, lamp beads in the loads provide lighting effect, a current limiting resistor in the loads plays a role in limiting current, a light emitting network which is spaced along a linear extension direction is formed by the plurality of lamp string branch circuits, the loads on the lamp string branch circuits are connected in parallel in a one-to-one correspondence mode through a plurality of first conduction nodes and a plurality of second conduction nodes, meanwhile, the first conduction nodes and the second conduction nodes are arranged at positions which are as close to two ends of the loads as possible, an electric connection conductor is reserved between two adjacent loads, so that the line lamp is convenient for cutting construction operation, when cutting is carried out, no matter a cutting point is positioned on the electric connection conductor or positioned on the first conduction node and the second conduction node, when the current of a single lamp string branch circuit is blocked, the current can be kept to pass through other lamp string branch circuits, guarantee remaining lamp pearl to the utmost and give out light, obtain better luminous effect, simultaneously, in the use, under the condition that single lamp pearl takes place to damage, also only the lamp pearl that damages is not bright, and other lamp pearls can guarantee that the circuit switches on through other lamp cluster branch roads, and normal luminous for the damage of single lamp pearl falls to minimumly to the luminous influence of whole lamp plate.
Drawings
FIG. 1 is a schematic diagram of a circuit structure of a linear lamp provided by the present invention;
the reference numbers in the drawings of the specification are as follows:
1. a lamp string branch circuit; 11. a load; 111. a current limiting resistor; 112. a lamp bead; 112a, a first LED lamp; 112b, a second LED lamp; 112c, a third LED lamp; 112d, a fourth LED lamp; 12. an electrical connection conductor; 121. a first electrical connection conductor; 122. a second electrical connection conductor; 123. a third electrical connection conductor; 124. a fourth electrical connection conductor; 2. a first pass node; 3. a second conducting node.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, an embodiment of the present invention provides a line lamp convenient to cut off, including a plurality of first conduction nodes 2, a plurality of second conduction nodes 3, and a plurality of lamp string branches 1, where the plurality of lamp string branches 1 are sequentially arranged at intervals along a linear extending direction, the lamp string branches 1 include a plurality of electrical connection conductors and a plurality of loads 11, the plurality of loads 11 include a plurality of lamp beads 112 and at least one current limiting resistor 111, two adjacent loads 11 are electrically connected by a single electrical connection conductor, the positions of the loads 11 on two adjacent lamp string branches 1 are in a one-to-one correspondence relationship, one end of each of the two loads 11 at the corresponding position is connected by a single first conduction node 2, and the other end of each of the two loads 11 at the corresponding position is connected by a single second conduction node 3.
The light emitting network spaced along the linear extending direction is composed of a plurality of light string branch circuits 1, the loads 11 on the light string branch circuits 1 are connected in parallel in a one-to-one correspondence mode through a plurality of first conduction nodes 2 and a plurality of second conduction nodes 3, meanwhile, the first conduction nodes 2 and the second conduction nodes 3 are arranged at positions as close to two ends of the loads 11 as possible, and an electric connection conductor is reserved between two adjacent loads 11, so that the line lamp is convenient to cut and construct, when cutting is carried out, no matter the cutting point is positioned on the electric connection conductor or positioned on the first conduction nodes 2 and the second conduction nodes 3, when the current of a single light string branch circuit 1 is blocked, the current can be kept to pass through other light string branch circuits 1, the remaining light beads 112 are ensured to emit light to the maximum degree, a better light emitting effect is obtained, and meanwhile, in the using process, if the single lamp bead 112 is damaged, only the damaged lamp bead 112 is not on, and the other lamp beads 112 can be switched on through the circuit ensured by the other lamp string branch circuits 1, so that normal light emission is realized, and the light emission influence of the damage of the single lamp bead 112 on the whole lamp panel is reduced to the minimum.
In this embodiment, the line lamp is a linear structure extending along the linear extending direction, a positive terminal and a negative terminal are formed on the line lamp, the load 11 at one end of the light string branch circuit 1 is electrically connected to the positive terminal through the first conducting node 2, and the load 11 at the other end of the light string branch circuit 1 is electrically connected to the negative terminal through the second conducting node 3.
The positive terminal and the negative terminal can be arranged at two ends of the linear lamp or led out from the same end of the linear lamp according to requirements.
In this embodiment, the number of the positive terminals and the negative terminals is single.
In other embodiments, the number of the positive terminals and/or the negative terminals is plural.
The driving voltage of the existing line lamp is mostly DC12V, the working current of a single LED lamp bead is about 20 milliamperes, the voltage drop of the single lamp bead is about 2.7V, the total voltage drop of 3 lamp beads is about 8.1V, then the voltage drop of nearly 4 volts (3.9V) is left and falls on the current-limiting resistor of the branch, the power consumption of the resistor is over one third, and in addition, other factors such as line loss and lamp bead heating loss are added, and the actual energy efficiency of the line lamp can only reach about sixty percent. In addition, because the heat power consumption is larger, some line lamps generate heat obviously, the temperature rise is higher, and certain potential safety hazards can be brought to the cabinet and other carriers. Meanwhile, the service life of related devices can be shortened, and particularly LED lamp beads are shortened.
In order to solve the above problem, in this embodiment, a single light string branch circuit 1 includes 4 light beads 112 and 1 current limiting resistor 111.
The lamp beads 112 with lower conduction voltage drop are selected, and 3 strings are changed into 4 strings, that is, 4 lamp beads 112 and 1 current limiting resistor 111 are connected in series to form a branch (a branch is a string), so that the efficiency can be obviously improved, and the following table example is specifically shown:
as can be seen from the comparison of the tables, the efficacy is greatly improved by using the 4 lamps in series. Under the condition that the quantity of the lamp beads and the current of a single lamp bead are unchanged (namely, the luminous power and the effect are unchanged), the quantity of the current-limiting resistors is reduced, the heating power of the single resistor is obviously reduced due to the reduction of the resistance value, the power consumption is obviously reduced, the temperature rise of the lamp strip is also obviously reduced, and the reliability and the service life of a product are obviously improved.
In this embodiment, the lamp bead 112 is an LED lamp.
It should be noted that, in other embodiments, according to the difference of the driving voltage, other light sources may be used for the lamp bead 112.
In this embodiment, the light string branch circuit 1 includes a first LED lamp 112a, a second LED lamp 112b, a third LED lamp 112c, a fourth LED lamp 112d, a current limiting resistor 111, a first electrical connection conductor 121, a second electrical connection conductor 122, a third electrical connection conductor 123 and a fourth electrical connection conductor 124, the first LED lamp 112a, the current limiting resistor 111, the second LED lamp 112b, the third LED lamp 112c and the fourth LED lamp 112d are sequentially disposed at intervals along the extension direction of the light string branch circuit 1, two ends of the first electrical connection conductor 121 are respectively electrically connected to the negative terminal of the first LED lamp 112a and the current limiting resistor 111, two ends of the second electrical connection conductor 122 are respectively electrically connected to the current limiting resistor 111 and the positive terminal of the second LED lamp 112b, two ends of the third electrical connection conductor 123 are respectively electrically connected to the negative terminal of the second LED lamp 112b and the positive terminal of the third LED lamp 112c, both ends of the fourth electrical connection conductor 124 are electrically connected to the negative terminal of the third LED lamp 112c and the positive terminal of the fourth LED lamp 112d, respectively.
In this embodiment, in two adjacent light string branch circuits 1, a positive terminal of the first LED lamp 112a of one light string branch circuit 1 and a positive terminal of the first LED lamp 112a of the other light string branch circuit 1 are electrically connected through one of the first conduction nodes 2, a negative terminal of the first LED lamp 112a of one light string branch circuit 1 and a negative terminal of the first LED lamp 112a of the other light string branch circuit 1 are electrically connected through one of the second conduction nodes 3, one end of the current limiting resistor 111 of one light string branch circuit 1 and one end of the current limiting resistor 111 of the other light string branch circuit 1 are electrically connected through one of the first conduction nodes 2, the other end of the current limiting resistor 111 of one light string branch circuit 1 and the other end of the current limiting resistor 111 of the other light string branch circuit 1 are electrically connected through one of the second conduction nodes 3, and a positive terminal of the second LED lamp 112b of one light string branch circuit 1 and a positive terminal of the second LED lamp 112b of the other light string branch circuit 1 are electrically connected through one of the second conduction nodes 3 The first conduction node 2 is electrically connected, wherein the negative end of the second LED lamp 112b of one lamp string branch circuit 1 and the negative end of the second LED lamp 112b of another lamp string branch circuit 1 are electrically connected through one second conduction node 3, the positive end of the third LED lamp 112c of one lamp string branch circuit 1 and the positive end of the third LED lamp 112c of another lamp string branch circuit 1 are electrically connected through one first conduction node 2, the negative end of the third LED lamp 112c of one lamp string branch circuit 1 and the negative end of the third LED lamp 112c of another lamp string branch circuit 1 are electrically connected through one second conduction node 3, the positive end of the fourth LED lamp 112d of one lamp string branch circuit 1 and the positive end of the fourth LED lamp 112d of another lamp string branch circuit 1 are electrically connected through one first conduction node 2, and the negative end of the fourth LED lamp 112d of one lamp string branch circuit 1 and the negative end of the fourth LED lamp 112d of another lamp string branch circuit 1 are electrically connected through one second conduction node 2 The node 3 is electrically connected.
As shown in fig. 1, a circuit diagram example of a linear lamp provided by the present invention includes n parallel lamp string branches 1, where lamp beads 112 and current-limiting resistors 111 on a first column of lamp string branches 1 are labeled as LEDs 11, R1, LED12, LED13 and LED14, lamp beads 112 and current-limiting resistors 111 on a second column of lamp string branches 1 are labeled as LEDs 21, R2, LED22, LED23 and LED24 … …, and lamp beads 112 and current-limiting resistors 111 on an nth column of lamp string branches 1 are labeled as LEDn1, Rn, LEDn2, LEDn3 and LEDn4, and when a cutting scheme causes a break point a, a break point B, a break point C or a break point D of the linear lamp, a current flowing out from the lamp bead 112 before the break point flows through other lamp string branches 1 and conducts the lamp beads 112 after the break point, so that the lamp beads 112 before and after the break point can be normally lit.
If LEDn2 of the n branch is damaged and can not be conducted to light in the use process, the current flowing out of the cathode of LEDn1 can flow through current limiting resistors R1-Rn, then flows to NeTC through LEDs 12-LED (n-1)2, then flows to LEDs 14-LEDn 4 through LEDs 13-LEDn 3, and then flows to the negative electrode end through LEDs 14-LEDn 4, so that normal lighting of LEDn1 is guaranteed. Similarly, LED (n-1)3 and LED (n-1)4 can be normally lighted. By analogy, any lamp bead 112 on the lamp plate is damaged, only the damaged lamp bead 112 is not on, and all lamp beads 112 of other lamp beads 112 and other branch circuits of the branch circuit can be normally lighted to emit light, so that the light-emitting effect of the whole line lamp is ensured.
In this embodiment, the line lamp further includes a supporting housing, and the first conduction node 2, the second conduction node 3 and the lamp string branch 1 are disposed inside the supporting housing.
In various embodiments, the support housing is a flexible housing or a rigid housing.
When the support housing is a flexible housing, the circuit may be disposed on a flexible circuit board and encapsulated by resin.
When the supporting shell is a rigid shell, the circuit can be arranged on the aluminum substrate and assembled and molded through the lamp shell.
Another embodiment of the present invention provides a cabinet lighting device including the line lamp as described above.
Due to the fact that the line lamp is adopted by the cabinet lighting device, cutting of any length can be conducted according to needs, and meanwhile the brightness of different parts after cutting is guaranteed to be uniform.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The utility model provides a line lamp convenient to cut, its characterized in that includes a plurality of first conduction nodes, a plurality of second conduction nodes and a plurality of lamp cluster branch road, and is a plurality of lamp cluster branch road is along a linear extending direction interval setting in proper order, the lamp cluster branch road includes a plurality of electric connection conductor and a plurality of load, and is a plurality of the load includes a plurality of lamp pearls and at least one current-limiting resistor, by single between two adjacent loads electric connection conductor electric conduction, the load position on two adjacent lamp cluster branch roads is the one-to-one relation, and the one end of two loads of corresponding position is by single first conduction nodes is connected, and the other end of two loads of corresponding position is by single the second conduction nodes is connected.
2. The line lamp easy to cut off as claimed in claim 1, wherein the line lamp is a linear structure extending along the linear extending direction, a positive terminal and a negative terminal are formed on the line lamp, the load at one end of the light string branch is electrically connected to the positive terminal through the first conducting node bus, and the load at the other end of the light string branch is electrically connected to the negative terminal through the second conducting node bus.
3. The line lamp convenient for truncation according to claim 1, wherein a single string branch comprises 4 lamp beads and 1 current limiting resistor.
4. The line lamp convenient to cut off of claim 1 or 3, wherein the lamp bead is an LED lamp.
5. The line lamp convenient to cut off of claim 4, wherein the light string branch comprises a first LED lamp, a second LED lamp, a third LED lamp, a fourth LED lamp, a current limiting resistor, a first electric connection conductor, a second electric connection conductor, a third electric connection conductor and a fourth electric connection conductor, the first LED lamp, the current limiting resistor, the second LED lamp, the third LED lamp and the fourth LED lamp are sequentially arranged along the extension direction of the light string branch at intervals, the two ends of the first electric connection conductor are respectively and electrically connected with the negative end of the first LED lamp and the current limiting resistor, the two ends of the second electric connection conductor are respectively and electrically connected with the current limiting resistor and the positive end of the second LED lamp, the two ends of the third electric connection conductor are respectively and electrically connected with the negative end of the second LED lamp and the positive end of the third LED lamp, and the two ends of the fourth electric connection conductor are respectively and electrically connected with the negative end of the third LED lamp and the positive end of the fourth LED lamp A positive terminal.
6. The line lamp convenient for cutting off as claimed in claim 5, wherein, in two adjacent light string branch circuits, the positive terminal of the first LED lamp of one light string branch circuit and the positive terminal of the first LED lamp of the other light string branch circuit are electrically connected through one said first conducting node, the negative terminal of the first LED lamp of one light string branch circuit and the negative terminal of the first LED lamp of the other light string branch circuit are electrically connected through one said second conducting node, one end of the current limiting resistor of one light string branch circuit and one end of the current limiting resistor of the other light string branch circuit are electrically connected through one said first conducting node, the other end of the current limiting resistor of one light string branch circuit and the other end of the current limiting resistor of the other light string branch circuit are electrically connected through one said second conducting node, the positive terminal of the second LED lamp of one light string branch circuit and the positive terminal of the second LED lamp of the other light string branch circuit are electrically connected through one said first conducting node, the negative end of the second LED lamp of one lamp string branch circuit is electrically connected with the negative end of the second LED lamp of the other lamp string branch circuit through one second conduction node, the positive end of the third LED lamp of one lamp string branch circuit is electrically connected with the positive end of the third LED lamp of the other lamp string branch circuit through one first conduction node, the negative end of the third LED lamp of one lamp string branch circuit is electrically connected with the negative end of the third LED lamp of the other lamp string branch circuit through one second conduction node, the positive end of the fourth LED lamp of one lamp string branch circuit is electrically connected with the positive end of the fourth LED lamp of the other lamp string branch circuit through one first conduction node, and the negative end of the fourth LED lamp of one lamp string branch circuit is electrically connected with the negative end of the fourth LED lamp of the other lamp string branch circuit through one second conduction node.
7. The linear lamp as claimed in claim 1, wherein the linear lamp further comprises a support housing, and the first conduction node, the second conduction node and the light string branch are disposed inside the support housing.
8. The easy disconnect line lamp of claim 7, wherein the support housing is a flexible housing or a rigid housing.
9. A cabinet lighting device comprising the line lamp as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122006418.1U CN216313464U (en) | 2021-08-24 | 2021-08-24 | Line lamp and cupboard lighting device convenient to cut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122006418.1U CN216313464U (en) | 2021-08-24 | 2021-08-24 | Line lamp and cupboard lighting device convenient to cut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216313464U true CN216313464U (en) | 2022-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122006418.1U Active CN216313464U (en) | 2021-08-24 | 2021-08-24 | Line lamp and cupboard lighting device convenient to cut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216313464U (en) |
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2021
- 2021-08-24 CN CN202122006418.1U patent/CN216313464U/en active Active
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