A tail card for improving the pulling effect of DC line
By adopting a combination design of positioning blocks, locking square columns, slots and card blocks in the design of tail-card DC lines, the weight and cost increase caused by thickening metal back plates in the prior art is solved, and a higher DC line tension effect and lower material cost are achieved.
Patent Information
- Application Number
- CN202421640239.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-07-11
AI Technical Summary
When the prior art meets the tension requirements of UL standard, conventional DC line design with tail card requires thickening of metal back plate, resulting in increased product weight and material cost, and the DC line design without tail card partially does not meet the UL standard.
By designing a tail card that improves the tension effect of DC line, the positioning block on the metal back plate and the locking square column on the surface ring are used, combined with the design of the card slot and the card block, the tightening and locking of the tail card of the DC line is achieved, and the tension performance of the DC line is improved.
This design not only meets the UL standard tension requirements, but also reduces the thickness specifications of the metal back plate, and reduces the product weight and material cost, while improving the tension effect of the DC line.
Smart Images
Figure CN222732782U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of lighting lamps, and in particular relates to a tail card for improving the pulling effect of a DC line. Background Art
[0002] At the lamp body end of the embedded downlight category, the conventional DC line design with a tail clip is fixed to the metal back plate through a simple clip slot. In order to meet the UL standard tension requirements, the thickness of the metal back plate needs to be thickened to ensure that the tail clip slot does not deform, which leads to an increase in product weight and material costs. At the lamp body end of the embedded downlight category, the conventional DC line design without a tail clip is to press the DC line on the metal back plate through a wire clamp, and tighten the wire clamp with screws to meet the UL standard tension requirements. This method requires an increase in material and process costs, and there are also some situations that do not meet the UL standard.
[0003] To this end, a method is provided for fastening a DC line with a tail card by screws without increasing new material and process costs, and the installation is integrated into the face ring and back plate locking process, and the DC line fastening through the card slot is converted into a mechanical fixation locked with the face ring screws. The fastening method is more reliable and meets the UL standard tension to improve the tension effect of the DC line. Utility Model Content
[0004] The utility model aims to provide a tail clamp for improving the pulling effect of a DC line, so as to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above purpose, the utility model provides the following technical solution: a tail card for improving the pulling effect of a DC line, comprising:
[0006] A metal back plate, wherein a positioning block with a combined inner cavity is provided on one side of the surface of the metal back plate, wherein the positioning block is provided with a DC line body which is slidably inserted into the positioning protrusion block through a DC line tail card, and the DC line body is connected to one side of the end of the DC line tail card;
[0007] A face ring, one side of the face ring surface is provided with a locking square column for locking the DC wire tail card in the positioning block, and the bottom of the DC wire tail card is provided with a T-shaped card block that is slidably connected to the positioning block.
[0008] Preferably, a card slot is formed on the side of the DC line tail card corresponding to the card block, and a positioning slide groove with a strip structure is opened at the end of the positioning block, so that the DC line tail card can be installed in the inner cavity of the positioning block by sliding into it with the cooperation of the card slot and the positioning slide groove, thereby increasing the pulling force of the DC line body on the lamp.
[0009] Preferably, a through hole is provided on one side of the DC line tail card, and the DC line tail card slides into the positioning block for positioning by utilizing the card slot formed between the card block and the DC line tail card, so that the DC line body is inserted into the positioning protrusion block for locking and fixing, and is convenient for disassembly and assembly.
[0010] Preferably, a screw is inserted into the through hole on the DC wire tail card, and the end of the locking square column is provided with a screw hole position for the screw to lock the DC wire tail card in the positioning block, so that the DC wire tail card can be locked on the surface of the positioning block at the end of the metal backplane.
[0011] Preferably, fasteners are provided on the front and rear surfaces of the metal back plate. The metal back plate is installed on the end of the face ring and is clamped together by the fasteners, so that the face ring and the metal back plate in the lamp can be disassembled and assembled, which is beneficial for the disassembly and assembly of the lamp panel and the maintenance.
[0012] Compared with the prior art, the utility model has the following technical effects and advantages: the tail card for improving the pulling force of the DC line increases the projection area of the DC line tail card on the metal back plate, forms a position for fastening screws on the DC line tail card, and opens a through hole on the DC line tail card to allow the screw to pass through. The screw locks the DC line tail card and the metal back plate on the face ring by overlapping the positioning block and the locking square column;
[0013] The slot design between the bottom of the DC cable end card and the card block allows the DC cable to be temporarily fixed to the metal backplane, facilitating the installation of the screw locking process and improving the tensile performance of the DC cable. At the same time, the thickness of the metal backplane can be reduced, reducing the weight of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the decomposed structure of the utility model from the first perspective;
[0015] Figure 2 This is a schematic diagram of the decomposed structure of the utility model from the second viewing angle;
[0016] Figure 3 This is a schematic diagram of the three-dimensional main structure of the utility model;
[0017] Figure 4 This is a schematic diagram of the main structure of the DC line tail card of the present utility model.
[0018] In the figure: 1. Metal back plate; 2. Positioning block; 3. DC wire tail card; 4. DC wire body; 5. Face ring; 6. Locking square column; 7. Card block; 8. Card slot; 9. Positioning slide; 10. Through hole; 11. Screw; 12. Screw hole; 13. Fastener. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] See also Figure 1-4 The utility model provides a technical solution: a tail card for improving the pulling effect of a DC line, comprising:
[0021] A metal back plate 1, wherein a positioning block 2 with a combined inner cavity is provided on one side of the surface of the metal back plate 1, and one end of the positioning block 2 extends to the outside of the metal back plate 1, which is convenient for the DC line tail card 3 to be inserted and removed, and the positioning block 2 is provided with a DC line body 4 that is slidably inserted into the positioning block 2 through the DC line tail card 3, and the other end of the DC line body 4 is connected to a power connector for plugging and unplugging an external power plug, and the DC line body 4 is connected to one side of the end of the DC line tail card 3, and the DC line body 4 is connected and fixed to the end of the DC line tail card 3 in an integrated manner, and is connected to the card block 7, which is convenient for the wire harness to penetrate into the interior of the lamp and connect to the top plate;
[0022] A face ring 5, one side of the surface of the face ring 5 is provided with a locking square column 6 for locking the DC wire tail card 3 in the positioning block 2, so that the locking square column 6 combination is located at the bottom side of the outwardly extending portion of the positioning block 2 and vertically overlaps with the DC wire tail card 3, and is locked and fixed by a screw 11. The bottom of the DC wire tail card 3 is provided with a T-shaped card block 7 that is slidably connected to the positioning block 2, so that the DC wire tail card 3 can be limited by the card block 7 and slide into the positioning block 2, so that the DC wire tail card 3 is positioned at the end of the positioning block 2, and is locked and fixed by a screw 11.
[0023] The DC wire tail card 3 is formed with a card slot 8 on one side corresponding to the card block 7, so that the DC wire tail card 3 can be clamped at the end of the positioning block 2 to play a role in tensile support for the DC wire body 4, and the end of the positioning block 2 is provided with a positioning slot 9 with a strip structure, so that the card block 7 can slide into the interior of the positioning block 2 to limit the tensile force of the DC wire body 4, thereby avoiding the problem of the wire harness being broken due to large tensile force. A through hole 10 is penetrated on one side of the DC wire tail card 3, so that the screw 11 can be inserted into the through hole 10 and locked with the screw hole 12 in the locking square column 6, so as to fix the DC wire tail card 3 on the metal back On one side of the end of the plate 1, the falling tension of the DC line body 4 and the lamp is reduced, and the DC line tail card 3 slides into the positioning block 2 for positioning by utilizing the card slot 8 formed between the card block 7 and the DC line tail card 3. A screw 11 is inserted into the through hole 10 on the DC line tail card 3. The end of the locking square column 6 is provided with a screw hole 12 for the screw 11 to pass through the DC line tail card 3 and lock it in the positioning block 2. Fasteners 13 are provided on the front and back surfaces of the metal back plate 1. The metal back plate 1 is installed at the end of the face ring 5 and is clamped and assembled by the fasteners 13 to achieve a certain tension in the DC line body 4.
[0024] Specifically, when in use, the metal back plate 1 is first combined with the face ring 5, and is locked and fixed by screws and snap fasteners 13. Prior to this, the block 7 is slid into the interior of the positioning block 2 by means of the card slot 8, and the DC wire tail card 3 is slid into the end of the positioning block 2 by means of the fiber under the sliding of the block 7, and the locking square column 6 is combined with the positioning block 2, so that the screw hole 12 is connected with the positioning slot 9 and the through hole 10, and the screw 11 is inserted into the through hole 10 and locked with the screw hole 12, so that the DC wire tail card 3 can be fixed to the end of the positioning block 2, so that the DC line body 4 has a certain pulling force on the lamp, and the DC line body 4 and the metal back plate 1 are locked and fastened to the face ring 5 by means of the DC line tail card 3 that can pass through the screw 11, so as to improve the pulling force performance of the DC line body 4. At the same time, the material thickness specification of the metal back plate 1 can be reduced, the product weight can be reduced, and thus the product material cost and logistics cost can be reduced.
[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A tail card for improving the pulling effect of a DC line, characterized in that: include: A metal back plate (1), wherein a positioning block (2) with a combined inner cavity is provided on one side of the surface of the metal back plate (1), the positioning block (2) is provided with a DC line body (4) which is slidably inserted into the positioning block (2) through a DC line tail card (3), and the DC line body (4) is connected to one side of the end of the DC line tail card (3); A face ring (5) is provided on one side of the surface of the face ring (5) with a locking square column (6) for locking the DC wire tail clamp (3) in the positioning block (2), and a T-shaped clamping block (7) is provided at the bottom of the DC wire tail clamp (3) and is slidably clamped on the positioning block (2).
2. The tail card for improving the pulling force of a DC line according to claim 1, characterized in that: A card slot (8) is formed on one side of the DC line tail card (3) corresponding to the card block (7), and a positioning slide slot (9) with a strip-shaped structure is formed at the end of the positioning block (2).
3. The tail card for improving the pulling force of a DC line according to claim 2, characterized in that: A through hole (10) is provided on one side of the DC line tail card (3), and the DC line tail card (3) slides into the positioning block (2) for positioning by utilizing a card slot (8) formed between the card block (7) and the DC line tail card (3).
4. The tail card for improving the pulling force of a DC line according to claim 3, characterized in that: A screw member (11) is inserted into the through hole (10) on the DC wire tail card (3), and a screw hole position (12) is provided at the end of the locking square column (6) for locking the DC wire tail card (3) with the screw member (11) in the positioning block (2).
5. The tail card for improving the pulling force of a DC line according to claim 1, characterized in that: The front and rear surfaces of the metal back plate (1) are both provided with snap fasteners (13); the metal back plate (1) is mounted on the end of the face ring (5) and is clamped together by the snap fasteners (13).