Power connection structure of LED linear slot lamp

Abstract

The application discloses a power supply connecting structure of an LED linear slot lamp, which comprises a U-shaped lamp slot, an LED lamp strip installed in the lamp slot, and a power supply connector electrically connected with the LED lamp strip. The lamp slot comprises a bottom wall and side walls located on both sides of the bottom wall. A clamping strip extending along the length direction of the lamp slot is arranged on the inner side of the side wall. The LED lamp strip comprises a circuit board, a plurality of LED lamp beads arranged along the length direction of the circuit board and installed on the front surface of the circuit board, and at least two conductive strips extending along the length direction of the circuit board. The power supply connector comprises a body, at least two elastic electric contact devices corresponding to the conductive strips are arranged on the bottom of the body, and a wiring terminal corresponding to the electric contact devices is arranged at one end of the body. The front surface of the circuit board is installed on the bottom wall of the lamp slot with the front surface facing upwards. The power supply connector is pressed on the front surface of the circuit board. The elastic electric contact devices on the bottom of the power supply connector are electrically contacted with the conductive strips on the circuit board. The clamping strip fixes the power supply connector in the lamp slot.

Description

TECHNICAL FIELD

[0001] The application relates to an LED lamp, in particular to a power connection structure of an LED linear slot lamp. BACKGROUND

[0002] The LED linear slot lamp comprises a lamp slot and an LED lamp strip installed in the lamp slot, and the LED lamp strip comprises a circuit board and an LED lamp strip welded on the circuit board. The welding-free joint structure of the existing LED linear slot lamp is shown in the patent with the patent number 202020744147.2 and the patent name of LED lamp strip welding-free joint, which comprises a joint body, the joint body is provided with a mounting slot for mounting the LED lamp strip, the mounting slot is provided with a conductive contact for electrically connecting with the LED lamp strip, and a detachable fixing cover is arranged on the mounting slot. The LED lamp strip is inserted into the mounting slot and electrically connected with the conductive contact, and the fixing cover is buckled with the body to fix the LED lamp strip. When the welding-free joint is installed, it needs to be inserted from the end of the LED lamp strip in the narrow space of the lamp slot, and the assembly is very inconvenient. In addition, since the LED lamp strip is supported by the welding-free joint from the bottom of the lamp slot, it is in a suspended state in the lamp slot and is not directly attached to the bottom of the lamp slot. The heat generated by the LED lamp strip cannot be directly conducted to the lamp slot, and the heat dissipation effect is poor. SUMMARY

[0003] Therefore, it is necessary to provide a power connection structure of an LED linear slot lamp which is convenient to install and has good heat dissipation effect.

[0004] To solve the problems in the prior art, the application discloses a power connection structure of an LED linear slot lamp, which comprises a U-shaped lamp slot, an LED lamp strip installed in the lamp slot, a power connector electrically connected with the LED lamp strip and a power line electrically connected with the power connector. The lamp slot comprises a bottom wall and side walls located on both sides of the bottom wall, and a clamping strip is arranged on the inner side of the side wall and extends along the length direction of the lamp slot. The LED lamp strip comprises a circuit board, a plurality of LED lamp beads arranged along the length direction of the circuit board and installed on the front surface of the circuit board, and at least two conductive strips extending along the length direction of the circuit board. The conductive strips are provided with a predetermined spacing as an isolation part from the side surface of the circuit board. The power connector comprises a body, and a clearance groove is arranged at the bottom of the body. An elastic electric contact device corresponding to the conductive strip is arranged in the clearance groove, and the elastic electric contact device is electrically connected with the power line. The circuit board is installed on the bottom wall of the lamp slot with the front surface upward, the edge of the clearance groove of the power connector is pressed on the isolation part of the circuit board, the elastic electric contact device is electrically connected with the conductive strip on the circuit board, and the clamping strip fixes the power connector in the lamp slot.

[0005] As a further improvement of the present application: the card strip includes a first card strip near the light slot light outlet and a second card strip inside the first card strip, the first card strip and the second card strip form a card slot with the side wall, the card slot is provided with a light diffusing plate, and the second card strip fixes the power connector in the light slot; the top or middle of the power connector body is provided with a card slot matched with the second card strip, and the second card strip is clamped into the card slot to fix the power connector. One end of the power connector body is provided with a plug pin electrically connected with the elastic contact device, the power cord includes a plug, a wire connected with the plug, and a docking portion connected with the wire, the docking portion is provided with a plug hole matched with the plug pin, and the plug pin is docked with the plug hole.

[0006] The beneficial effects of the present application are: the present application sets the elastic contact device at the bottom of the power connector, sets the conductive strip on the front of the LED lamp strip circuit board, and sets the card strip for clamping the power connector on the side wall of the light slot. The power connector can be clamped into the light slot from the light outlet of the light slot to be in electrical contact with the circuit board. The power connector is easy to install and is not limited by the position of the end of the light slot. At the same time, the circuit board can be attached to the bottom wall of the light slot, and the heat dissipation is good. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1 It is one of the assembly structure schematic diagrams of the present application.

[0008] Figure 2 It is the second assembly structure schematic diagram of the present application.

[0009] Figure 3 It is the structure schematic diagram of the present application after assembly.

[0010] Figure 4 It is Figure 3 It is the structure schematic diagram of the A-A ladder section of the present application.

[0011] Figure 5 It is the structure schematic diagram of the power connector of the present application.

[0012] Figure 6 It is the structure schematic diagram of the LED lamp strip of the present application.

[0013] Figure 7 It is the assembly structure schematic diagram of the power connector and the wire of the present application. DETAILED DESCRIPTION

[0014] In order to further understand the features, technical means and specific purposes and functions of the present application, the present application will be further described in detail below in combination with the drawings and specific embodiments. The up, down, inside, outside, top and bottom and other related positional relationships described in the present application file are only described with reference to the position of the related components shown in the drawings of the present application file, and do not represent the absolute limitation of the protection scope of the present application.

[0015] Reference Figure 1 The power connection structure of the LED linear slot lamp comprises a U-shaped lamp slot 1, an LED lamp strip 2 installed in the lamp slot 1, a power connector 3 electrically connected with the LED lamp strip 2, a light diffuser 4 covering the light outlet of the lamp slot 1, and a power cord 5 electrically connected with the power connector 3.

[0016] Reference Figure 4 The U-shaped lamp slot 1 comprises a bottom wall 11 and side walls 12 located on both sides of the bottom wall 11, and a first clamping strip 131 and a second clamping strip 132 extending along the length direction of the lamp slot 1 are arranged on the inner side of the side wall 12 close to the light outlet, the first clamping strip 131 and the second clamping strip 122 and the side wall 12 enclose a mounting groove 13 with an opening facing the inner side of the side wall 12, and the first clamping strip 131 is located on the outer side of the second clamping strip 132.

[0017] Reference Figure 6 The LED lamp strip 2 comprises a circuit board 21, a plurality of LED lamp beads 22 welded on the front surface of the circuit board 21, and at least two conductive strips 23 extending along the length direction of the circuit board 21. The conductive strips 23 are electrically connected with the power circuit in the circuit board 21 and protrude from the surface of the circuit board 21. When there is only one column of LED lamp beads 22, the plurality of LED lamp beads 22 are arranged in the center of the circuit board 21, and the conductive strips 23 are located on both sides of the LED lamp beads 22; when there are multiple columns of LED lamp beads 22, the multiple columns of LED lamp beads 22 are arranged at intervals with the conductive strips 23. When the LED lamp strip 2 has only one loop, the conductive strips 23 are two, including positive and negative current conductive strips; when the LED lamp strip has multiple loops, the conductive strips 23 can be more than three, including positive and negative current conductive strips of multiple loops; when the LED lamp strip further comprises a control signal, the conductive strips 23 further comprise a signal line conductive strip. The conductive strips 23 have a predetermined spacing from the side surface of the circuit board 21 as an isolation portion 24, so that the conductive strips 23 can be prevented from being in electrical contact with the lamp slot 1.

[0018] Reference Figure 4 And Figure 7 The power connector 3 comprises a body 31, the bottom of the body 31 is provided with a clearance groove 32, at least two elastic electric contact devices 33 corresponding to the conductive strips 23 are arranged in the clearance groove 32; the two sides of the body are provided with clamping grooves 34 matched with the second clamping strips 132, the clamping grooves 34 can be located at the top or the middle of the two sides of the body; one end of the body 31 is provided with a terminal for electrical connection with the elastic electric contact devices 33, the terminal can be a pin 34 or a wire hole 35. The elastic electric contact devices 33 can be springs or marbles driven by springs or the like Figure 5The spring sheet is preferably used in the present application, so the structure is simpler. The elastic electric contact device 33 is arranged in the accommodation groove 32, which can accommodate the LED lamp beads on the circuit board and prevent the elastic electric contact device 33 from being in electric contact with the lamp groove 1.

[0019] Reference Figure 1 When the connecting terminal of the power connector 3 is the pin 34, the power line 5 comprises the plug 51, the wire 52 connected with the plug 51 and the mating part 53 connected with the wire 52, and the mating part 53 is provided with the hole 54 matched with the pin 35. When the LED lamp strip 2 of the present application is a low-voltage lamp strip, the driving power source can also be arranged on the power line 5, so that the power line 5 is in butt joint with the power connector 3 by the pin 35 and the hole 54, and the driving power source with different output power and voltage can be conveniently replaced. When the LED lamp strip is a high-voltage lamp strip and does not need the driving power source, the mating part 53 can also be an integral structure with the power connector 3, and the elastic electric contact device 33 on the power connector 3 is in electric connection with the plug 51 through the wire 53, so that the installation is more convenient. Figure 7 When the connecting terminal of the power connector 3 is the wire hole 36, the top of the body 31 is provided with the screw hole 37 through the wire hole 36, the screw 38 is arranged on the screw hole 37, the mating part 53 of the power line can be provided with the pin matched with the wire hole 36, or the wire 52 is directly inserted into the wire hole 36 and fixed by the screw 38, so that the LED lamp strip is electrically connected to the control switch.

[0020] Reference Figures 1 to 4 The installation mode of the present application is as follows: firstly, the circuit board 21 is installed in the lamp groove 1 with the front face upward, and the circuit board 21 can be fixed on the bottom wall 11 of the lamp groove by the adhesive, the screw or the clamping mode; then, the power connector 3 is connected with the power line 5 or the wire 52, and then the power connector 3 is pressed into the lamp groove 1 from the light outlet of the lamp groove 1 with the bottom downward, the edge of the accommodation groove 32 at the bottom of the power connector 3 is pressed on the isolation part 24 of the circuit board 21, the elastic electric contact device 33 is in electric contact with the conductive strip 23 on the circuit board 21, the second clamping strip 132 is clamped into the clamping groove 34 on both sides of the power connector 3, and the power connector 3 is fixed in the lamp groove 1; finally, the diffuser plate 4 is clamped into the mounting groove 13 of the two side walls. The second clamping strip 132 is not only the clamping strip constituting the lower side of the mounting groove 13, but also the clamping strip for the power connector 3, so that the structure of the lamp groove 1 is simpler. Of course, the clamping strip for clamping the power connector 3 can also be separately arranged on the side wall 12 of the lamp groove. The power connector 3 can directly abut on the lower side of the second clamping strip 132 by the top of the body 31, or the clamping groove 34 matched with the second clamping strip 132 can be arranged on the top or the middle of both sides of the body, so that the matching precision of the second clamping strip 132 and the body of the power connector 3 is more easily controlled.

[0021] The present application sets the elastic contact device at the bottom of the power connector, sets the conductive strip at the front of the LED lamp strip circuit board, sets the clamping strip for clamping the power connector at the side wall of the lamp slot, and the power connector can be clamped into the lamp slot from the light outlet of the lamp slot to contact the circuit board, so that the power connector is convenient to install and is not limited by the position of the end of the lamp slot; meanwhile, the circuit board can be attached to the bottom wall of the lamp slot, and heat dissipation is good.

[0022] The above-mentioned embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A power connection structure of an LED linear slot lamp, comprising a U-shaped lamp slot, an LED lamp strip installed in the lamp slot, a power connector electrically connected with the LED lamp strip, and a power cord electrically connected with the power connector, characterized in that: The lamp slot comprises a bottom wall and side walls on both sides of the bottom wall, and a clamping strip is arranged inside the side wall and extends along the length direction of the lamp slot; the LED lamp strip comprises a circuit board, a plurality of LED lamp beads arranged along the length direction of the circuit board and installed on the front surface of the circuit board, and at least two conductive strips extending along the length direction of the circuit board, the conductive strips are provided with a predetermined interval as an isolation part from the side surface of the circuit board; the power connector comprises a body, a clearance groove is arranged at the bottom of the body, and an elastic contact device corresponding to the conductive strip is arranged in the clearance groove, the elastic contact device is electrically connected with the power line; the circuit board is installed on the bottom wall of the lamp slot with the front surface upward, the edge of the clearance groove of the power connector is pressed on the isolation part of the circuit board, the elastic contact device is electrically connected with the conductive strip on the circuit board respectively, and the clamping strip fixes the power connector in the lamp slot.

2. The power connection structure of the LED linear strip lamp according to claim 1, characterized in that: The clamping strip comprises a first clamping strip close to the light outlet of the lamp slot and a second clamping strip inside the first clamping strip, the first clamping strip and the second clamping strip are combined with the side wall to form a clamping groove with an opening facing the inside of the side wall, a light diffusing plate is installed in the clamping groove, and the second clamping strip fixes the power connector in the lamp slot.

3. The power connection structure of the LED linear strip lamp according to claim 2, characterized in that: The top or middle part of the body on both sides of the power connector is provided with a clamping groove matched with the second clamping strip, and the second clamping strip is clamped in the clamping groove to fix the power connector.

4. The power connection structure of the LED linear strip lamp according to claim 1, characterized in that: The elastic contact device is a spring piece.

5. The power connection structure of the LED linear strip lamp according to claim 1, characterized in that: One end of the body of the power connector is provided with a plug pin electrically connected with the elastic contact device, the power line comprises a plug, a wire connected with the plug and a butt joint part connected with the wire, the butt joint part is provided with a plug hole matched with the plug pin, and the plug pin is butted with the plug hole.

Images