A shelf power supply device

Abstract

The present invention discloses a shelf power supply device, comprising: a strip-shaped power supply cavity, a side wall of which is provided with a strip-shaped mounting hole extending along the length direction thereof; a fixed power supply end, which is arranged in the strip-shaped power supply cavity; a power supply head, which is slidably arranged on the strip-shaped power supply cavity and comprises a power supply part located in the strip-shaped power supply cavity and an output part located outside the strip-shaped power supply cavity; a flexible wire, which is arranged in the strip-shaped power supply cavity and has two ends respectively connected to the fixed power supply end and the power supply part, and the flexible wire stretches or bends in the strip-shaped power supply cavity when the power supply head is away from or close to the fixed power supply end; the present invention arranges a positionable and movable power supply head on the strip-shaped power supply cavity, and arranges a flexible wire in the strip-shaped power supply cavity to cooperate with the mobile power supply of the power supply head, has a simple structure, is flexible to use, is suitable for changing shelf power supply, and also has a good waterproof effect.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply, in particular to a shelf power supply device. Background Art

[0002] Displays are generally achieved through shelves or display cabinets, which often require the use of electrical equipment, such as LED lighting. LED lamps require power supply and wires, which brings inconvenience to installation and increases installation costs. The shelf shelves have an up and down adjustment function. When different products are placed on the shelves, the height of the shelf shelves needs to be adjusted up or down, and the fixed length of wires cannot make the shelves easy to move. The wires must be removed and reinstalled according to the new shelf height. In addition, exposed wires will affect the appearance and increase safety risks.

[0003] In the prior art, in order to solve the above-mentioned problems, some power supply tracks and power supply heads arranged thereon have been proposed to meet the power supply needs. In order to change the power supply position when the position of the shelf changes and the installation position of the lamp changes, the wires on the power supply track are usually exposed and cannot be waterproof. They are also easily corroded over time, which reduces their service life. Summary of the Invention

[0004] In view of this, the present invention provides a shelf power supply device to solve the above technical problems.

[0005] A shelf power supply device, comprising:

[0006] The strip-shaped power taking cavity has a strip-shaped mounting hole extending along its length on its side wall;

[0007] A fixed power supply terminal is arranged in the strip-shaped power taking cavity;

[0008] The power taking head is slidably arranged on the strip-shaped mounting hole, and includes a power taking portion located in the strip-shaped power taking cavity and an output portion located outside the strip-shaped power taking cavity;

[0009] A flexible wire is arranged in the strip-shaped power-taking cavity, with its two ends respectively connected to the fixed power supply end and the power-taking part. When the power-taking head moves away from or approaches the fixed power supply end, the flexible wire stretches or bends in the strip-shaped power-taking cavity.

[0010] Preferably, the output portion is provided with a plug or socket for external power supply.

[0011] Preferably, a protective cover is provided on the socket.

[0012] Preferably, the output portion is provided with a dummy socket having the same shape as the socket and cooperating with the protective cover.

[0013] Preferably, the fixed power supply end is divided into two groups, positive and negative. Correspondingly, the flexible wires are divided into two groups, positive and negative, which are respectively connected to the corresponding fixed power supply ends, and the other ends of the two flexible wires are connected to the same power head.

[0014] Preferably, in the length direction of the strip-shaped power extraction cavity, two flexible wires are respectively located on both sides of the power extraction head.

[0015] Preferably, the positive and negative groups of fixed power supply terminals are arranged opposite to each other.

[0016] Preferably, the projection of the power taking head on the cross section of the strip-shaped power taking cavity along the length direction of the strip-shaped power taking cavity is located between the positive and negative groups of fixed power supply terminals.

[0017] Preferably, the fixed power supply terminal includes:

[0018] A power supply wire passes through the strip-shaped power taking cavity and is fixed at both ends;

[0019] A power supply block is fixedly connected to the power supply wire and connected to the flexible wire.

[0020] The power taking head and the strip-shaped power taking cavity are positioned by friction.

[0021] Technical effects of the present invention:

[0022] The shelf power supply device of the present invention is provided with a positionable and movable power supply head on the strip-shaped power supply cavity, and a flexible wire is provided in the strip-shaped power supply cavity to cooperate with the mobile power supply head. It has a simple structure, flexible use, is suitable for changing shelf power supply, and also has a good waterproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0024] Figure 1 FIG. 2 is a schematic diagram of the three-dimensional structure of the shelf power supply device of this embodiment.

[0025] Figure 2 for Figure 1 Enlarged schematic diagram of part A.

[0026] Figure 3 for Figure 2 Schematic diagram of the structure with the protective cover removed.

[0027] Figure 4 Schematic diagram of the three-dimensional structure of the shelf power supply device (excluding the strip-shaped power supply cavity) of this embodiment.

[0028] Figure 5 for Figure 4 Schematic diagram of the enlarged portion B.

[0029] Figure 6 for Figure 5 A schematic diagram of the structure from a different angle (front view).

[0030] Figure 7 This is a schematic cross-sectional view of the shelf power supply device at the power supply head of this embodiment. DETAILED DESCRIPTION

[0031] The following is a further detailed description of specific embodiments of the present invention based on the accompanying drawings. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the scope of protection of the present invention.

[0032] like Figures 1 to 7 As shown, the shelf power supply device of this embodiment includes a strip-shaped power supply cavity 100 , a fixed power supply terminal 200 , a power supply head 300 and a flexible wire 400 .

[0033] At least one group of cooperating fixed power supply terminals 200, power supply heads 300 and flexible conductors 400 are provided in the strip power supply cavity 100, which can be set according to the number of layers of the shelf. At least one corresponding strip mounting hole 101 is provided. The strip mounting holes 101 on the strip power supply cavity 100 can be interconnected or partitioned. In this embodiment, six groups of cooperating fixed power supply terminals 200, power supply heads 300 and flexible conductors 400 are provided in the strip power supply cavity 100, and each strip mounting hole 101 is connected. In fact, in order to facilitate production and installation, in this embodiment, each strip mounting hole 101 is interconnected and passes through to both ends of the strip power supply cavity 100.

[0034] The length and direction of the strip-shaped power supply cavity 100 are set according to the power supply requirements. It can be straight or curved and is surrounded by side panels. The side panels can be integral or made up of multiple panels. In order to achieve power supply, a fixed power supply terminal 200 is provided therein. The fixed power supply terminal 200 can be directly inserted horizontally from the side panel of the strip-shaped power supply cavity 100 and fixed, and then connected to the main power supply equipment externally, or a bus can be set to pass through the strip-shaped power supply cavity 100, and a power supply block 204 is set on the bus. Then, the bus is fixed to achieve the positioning of the fixed power supply terminal 200 in the strip-shaped power supply cavity 100. In this embodiment, the fixed power supply terminal 200 includes a power supply conductor 203 (i.e., the bus) and a power supply block 204. The power supply conductor 203 passes through the strip-shaped power supply cavity 100 and is fixed at both ends; the power supply block 204 is fixedly connected to the power supply conductor 203 and connected to the flexible conductor 400. In order to facilitate material acquisition and reduce costs, in this embodiment, the power supply conductor 203 is an insulated conductor. The power supply wire 203 is used to connect to the power supply bus. For convenience, a connector is generally provided at the end to connect to the external power supply bus. Of course, welding can also be used to achieve electrical connection. In this embodiment, a power supply socket 102 is provided at one end of the strip-shaped power cavity 100.

[0035] The fixed power supply end 200 is arranged in the strip-shaped power supply cavity 100, and a strip-shaped mounting hole 101 extending along its length direction is provided on the side wall of the strip-shaped power supply cavity 100. The power supply head 300 can be slidably arranged on the strip-shaped mounting hole 101, including a power supply part 301 located in the strip-shaped power supply cavity 100 and an output part 302 located outside the strip-shaped power supply cavity 100; the flexible wire 400 is arranged in the strip-shaped power supply cavity 100, and its two ends are respectively connected to the fixed power supply end 200 and the power supply part 301. When the power supply head 300 moves away from or approaches the fixed power supply end 200, the flexible wire 400 stretches or bends in the strip-shaped power supply cavity 100.

[0036] A positionable and movable power supply head is provided on the strip-shaped power supply cavity 100, and a flexible wire is provided in the strip-shaped power supply cavity to cooperate with the mobile power supply of the power supply head. The structure is simple and flexible to use, and it is suitable for powering changing shelves. As long as the flexible wire 400 is waterproof, for example, an ordinary insulated wire is used, a good waterproof effect can be achieved. In addition, the strip-shaped power supply cavity 100 confines the flexible wire 400 within the cavity, making it difficult to observe, thereby keeping the shelf neat and beautiful.

[0037] When the output unit 302 is connected to an external electrical appliance, a variety of power supply structures are used. For ease of use, the output unit 302 is provided with an external power supply plug or socket 3021. A plug generally has a wire and is directly connected to the electrical appliance. In this embodiment, a socket 3021 is used, which is more flexible.

[0038] To protect the socket 3021 from dust and water, a protective cover 3022 is provided on the socket 3021. To prevent the protective cover 3022 from being lost while the socket 3021 is in use, in this embodiment, a dummy socket 3023 is provided on the output unit 302. The dummy socket 3023 has the same appearance as the socket 3021 and fits in with the protective cover 3022. The dummy socket 3023 can be a solid structure with the same appearance as the socket 3021.

[0039] The fixed power supply end 200 is divided into two groups, positive and negative. Correspondingly, the flexible wires 400 are divided into two groups, positive and negative, which are respectively connected to the corresponding fixed power supply end 200. The other ends of the positive flexible wire 401 and the negative flexible wire 402 are connected to the same power head 300.

[0040] To ensure ample bending space for both flexible conductors, in this embodiment, the positive flexible conductor 401 and the negative flexible conductor 402 are positioned on either side of the power head 300 along the length of the strip-shaped power supply cavity 100. The positive fixed power supply terminal 201 and the negative fixed power supply terminal 202 are positioned opposite each other. To achieve a compact structure, in this embodiment, the projection of the power head 300 on the cross-section of the strip-shaped power supply cavity 100 along the length of the strip-shaped power supply cavity 100 is positioned between the positive fixed power supply terminal 201 and the negative fixed power supply terminal 202. This overall arrangement ensures a more balanced force on the power head 300, making it less likely to become stuck.

[0041] There are many ways to position the power supply head 300. For ease of operation, the power supply head 300 is positioned with the strip-shaped power supply cavity 100 through friction. Friction positioning can be achieved by sizing the power supply head 300 to provide an interference fit with at least part of the inner wall of the strip-shaped power supply cavity 100. The outer material of the power supply head 300 can be made of soft rubber, silicone, or other materials to increase friction.

[0042] The shape of the cross section of the strip-shaped power supply cavity 100 can be designed according to the installation location and is surrounded and defined by side panels. When used on common display equipment such as shelves, a surface-mount installation method is generally adopted. In order to reduce the volume and the required installation space, in this embodiment, the strip-shaped power supply cavity 100 is a flat rectangle with a width and a height. The strip-shaped power supply cavity 100 is surrounded by four side panels: a front cover 103, a left side bar 104, a rear cover 105, and a right side bar 106. The manufacturing form of the front cover 103, the left side bar 104, the rear cover 105, and the right side bar 106 can be fastener connection, glue bonding, or snap connection. For ease of manufacturing, in this embodiment, the front cover 103, the left side bar 104, the rear cover 105, and the right side bar 106 are manufactured as a single piece. The manufacturing process can be achieved by extrusion molding. The material can be ordinary plastic. In this embodiment, PVC is used. The strip-shaped mounting hole 101 is set on the front cover 103.

[0043] To further prevent the flexible conductive strip 300 from tangling and overlapping, the distance between the inner walls of the front cover 103 and the rear cover 105 of the strip-shaped power extraction cavity 100 is H, and the diameter of the flexible conductor 400 is D, where D<H<2D. This allows the flexible conductor 400 to bend and fold within a single plane, preventing tangling.

[0044] In order to facilitate installation, a magnetic member is provided on the outer wall of the strip-shaped power extraction cavity 100 . In this embodiment, the magnetic member is a cylindrical magnet 500 provided on both sides of the back cover 105 .

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements or improvements within the spirit of the present invention are included in the scope of the claims of the present invention.

Claims

1. A shelf power supply device, characterized in that: include: A strip-shaped power extraction cavity (100), with a strip-shaped mounting hole (101) extending along its length direction provided on its side wall; A fixed power supply end (200) is arranged in the strip-shaped power taking cavity (100); The power taking head (300) is slidably disposed on the strip-shaped mounting hole (101) and comprises a power taking portion (301) located in the strip-shaped power taking cavity (100) and an output portion (302) located outside the strip-shaped power taking cavity (100); the output portion (302) is provided with a plug or socket (3021) for external power supply; the socket (3021) is provided with a protective cover (3022); A flexible wire (400) is arranged in the strip-shaped power-collecting cavity (100), and its two ends are respectively connected to the fixed power supply end (200) and the power-collecting portion (301); when the power-collecting head (300) moves away from or approaches the fixed power supply end (200), the flexible wire (400) stretches or bends in the strip-shaped power-collecting cavity (100).

2. The shelf power supply device according to claim 1, characterized in that: The output portion (302) is provided with a dummy socket (3023) having the same appearance as the socket (3021) and cooperating with the protective cover (3022).

3. The shelf power supply device according to claim 1, characterized in that: The fixed power supply end (200) is divided into two groups (201, 202) of positive and negative wires. Correspondingly, the flexible wire (400) is divided into two groups (401, 402) of positive and negative wires, which are respectively connected to the corresponding fixed power supply end (200). The other ends of the two flexible wires (401, 402) are connected to the same power supply head (300).

4. The shelf power supply device according to claim 3, characterized in that: In the length direction of the strip-shaped power extraction cavity (100), two flexible wires (401, 402) are respectively located on both sides of the power extraction head (300).

5. The shelf power supply device according to claim 3, characterized in that: Two groups of positive and negative fixed power supply terminals (201, 202) are arranged opposite to each other.

6. The shelf power supply device according to claim 5, characterized in that: The projection of the power taking head (300) on the cross section of the strip-shaped power taking cavity (100) along the length direction of the strip-shaped power taking cavity (100) is located between the positive and negative groups of fixed power supply terminals (201, 202).

7. The shelf power supply device according to any one of claims 1 to 6, characterized in that: The fixed power supply end (200) comprises: A power supply wire (203) passes through the strip-shaped power extraction cavity (100) and is fixed at both ends; A power supply block (204) is fixedly connected to the power supply wire (203) and connected to the flexible wire (400).

8. The shelf power supply device according to any one of claims 1 to 6, characterized in that: The power collection head (300) and the strip-shaped power collection cavity (100) are positioned by friction.

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