Power supply track

By designing a support seat and protective door structure on the power rail, combined with torsion spring reset and snap-fit, the problem of insufficient protection performance of the existing power rail is solved, high safety and stability are achieved, and assembly efficiency and ease of use are improved.

CN223402023UActive Publication Date: 2025-09-30ZHEJIANG NUOJIN ELECTRIC APPLIANCE CO LTD
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Patent Information

Application Number
CN202422544778.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-21
Publication Date
2025-09-30
Estimated Expiration
2034-10-21

AI Technical Summary

Technical Problem

Existing power rails lack effective protective structures, which can easily lead to foreign objects entering the slots and causing short circuits or safety accidents, and the protective doors are prone to deformation and failure.

Method used

A power rail is designed with a support base and a protective door structure. The protective door is reliably covered on the slot by a torsion spring reset and can be easily assembled through snap-fit. Combined with the design of insulating strips and grounding conductive sheets, safety and stability are ensured.

Benefits of technology

A power rail with simple structure, stable and reliable performance, good protection performance, high safety, high assembly efficiency and convenient use is achieved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a power supply track, which comprises a track body, an insulating strip, an N-pole bus, an L-pole bus, a grounding conducting strip and a wiring terminal assembly, a strip-shaped slot is arranged on the track body, a support seat is arranged on one side of the track body corresponding to the strip-shaped slot, and a plurality of protective doors covering the strip-shaped slot are respectively and rotatably arranged on the support seat. A plurality of torsional springs are arranged between the plurality of protection doors and the supporting seat, one side of each protection door is provided with a shielding part covered in the corresponding strip-shaped slot, the other side of each protection door is provided with two supporting arms, and the two supporting arms are provided with two rotating shaft parts matched with the supporting seat; two positioning grooves matched with the two rotating shaft parts are formed in the supporting seat, the two rotating shaft parts are inserted into the two positioning grooves in a penetrating mode respectively, and rotating connection matching of the two rotating shaft parts and the supporting seat is formed. The utility model has the advantages of simple structure, stable and reliable performance, good protection performance and high safety.
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Description

Technical Field

[0001] The utility model particularly relates to a power supply track. Background Art

[0002] Track sockets are increasingly popular with consumers, and are poised to gradually replace traditional wall sockets in places like kitchens and offices. A track socket system consists of two components: a power track and a track socket. The power track is electrically connected to the fixed power supply wiring and features a long, rectangular slot on its exterior. When in use, the track socket plugs into the slot of the power track to draw power. Existing power tracks consist of a track body, a north-pole busbar, an left-pole busbar, and a ground busbar within the track body, along with terminal blocks electrically connected to the north-pole, left-pole, and ground busbars. The rectangular slots in existing power tracks lack protective structures, making them difficult to remove if foreign objects accidentally enter. Metallic materials can cause a short circuit, and children could accidentally insert wires into the slots, potentially causing safety hazards. Therefore, it is best to enclose the slots in power tracks. Consequently, power tracks with two plastic strips serving as protective doors are now available. However, these doors deform over time and cannot be restored, rendering them ineffective and less safe. Summary of the Invention

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide a power rail with simple structure, stable and reliable performance, good protection performance and high safety.

[0004] To achieve the above-mentioned purpose, the utility model adopts a power rail, including a rail body, insulating strips respectively arranged in the rail body, N-pole busbars and L-pole busbars respectively arranged on the insulating strips, a grounding conductive sheet, and a terminal assembly arranged on one end of the rail body, the rail body is provided with a strip slot, a support seat is provided on the rail body at one side corresponding to the strip slot, a plurality of protective doors respectively rotatably provided on the support seat to cover the strip slot, a plurality of torsion springs are respectively provided between the plurality of protective doors and the support seat, one side of the protective door has a shielding portion covering the strip slot, the other side of the protective door has two support arms, the two support arms are provided with two rotating shaft portions cooperating with the support seat, the support seat is provided with two positioning grooves cooperating with the two rotating shaft portions, the two rotating shaft portions are respectively inserted in the two positioning grooves, and constitute a rotating connection between the two rotating shaft portions and the support seat.

[0005] The beneficial effect of the above structure is that a protective door is provided on the bar slot of the track body, the protective door can cover the bar slot, and the protective door is reset by a torsion spring, which can ensure that the protective door can reliably cover the bar slot, and the protection performance is better. Therefore, the power track has the advantages of simple structure, stable and reliable performance, good protection performance and high safety.

[0006] In particular, the support base is provided with a snap-fit ​​strip that cooperates with the track body, and the track body is provided with a snap-fit ​​groove that cooperates with the snap-fit ​​strip. The snap-fit ​​strip engages within the snap-fit ​​groove, thereby forming a snap-fit ​​connection between the support base and the track body. The snap-fit ​​connection between the support base and the track body facilitates assembly of the support base and the track body, thereby improving assembly efficiency.

[0007] Specifically, the torsion spring is mounted on the rotating shaft. One end of the torsion spring has a U-shaped first torsion arm that engages with the shielding portion. The first torsion arm engages within a retaining groove in the shielding portion, while a second torsion spring at the other end engages within a groove in the support seat. The torsion spring engages with the rotating shaft of the protective door, facilitating assembly of the torsion spring and the protective door, making assembly more convenient and ensuring that the protective door can be reliably opened or closed.

[0008] Specifically, the insulating strip has two symmetrically positioned snap-fitting protrusions on one side, and the track body has two slots that mate with the two snap-fitting protrusions. The snap-fitting protrusions engage within the slots, forming a snap-fit ​​connection between the insulating strip and the track body. The snap-fit ​​connection between the insulating strip and the track body facilitates assembly of the insulating strip and the track body, increasing assembly efficiency.

[0009] In particular, an opening guide arc surface is provided on one side of the opening end of the shielding portion. The shielding portion is provided with an opening guide arc surface that matches the track socket, thereby facilitating the connection between the power track and the track socket and making it more convenient to use.

[0010] Specifically, the grounding conductive sheet has a U-shaped plug-in portion at one end, and the rail body is provided with a slot that mates with the plug-in portion. The plug-in portion is inserted into the slot, forming a snap-fit ​​connection between the grounding conductive sheet and the rail body. The grounding conductive sheet is plugged into the rail body via the plug-in portion, thereby facilitating assembly of the grounding conductive sheet and the rail body. When the rail socket is plugged into the power rail, the rail socket contacts the rail body, thereby achieving a grounding connection between the rail socket and the rail body. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a three-dimensional diagram of an embodiment of the present utility model.

[0012] Figure 2 This is an exploded view of an embodiment of the present utility model.

[0013] Figure 3 This is a cross-sectional view of an embodiment of the present invention. DETAILED DESCRIPTION

[0014] like Figures 1 to 3 As shown, the embodiment of the present utility model is a power rail, including a rail body 10, an insulating strip 11 respectively arranged in the rail body 10, an N-pole busbar 12 and an L-pole busbar 13 respectively arranged on the insulating strip 11, a grounding conductive sheet 14, and a terminal assembly 20 arranged on one end of the rail body 10, wherein the rail body 10 is provided with a strip slot 100, and a support base 15 is provided on the rail body 10 at a side corresponding to the strip slot 100, and a plurality of protective doors 16 are respectively rotatably provided on the support base 15 to cover the strip slot 100, and the plurality of protective doors 16 are respectively rotatably provided on the support base 15. A plurality of torsion springs 17 are respectively arranged between the protective door 16 and the support seat 15. One side of the protective door 16 has a shielding portion 161 covering the bar-shaped slot 100, and the other side of the protective door 16 has two support arms 162. The two support arms 162 are provided with two rotating shaft portions 163 that cooperate with the support seat 15. The support seat 15 is provided with two positioning grooves 151 that cooperate with the two rotating shaft portions 163. The two rotating shaft portions 163 are respectively inserted into the two positioning grooves 151, and constitute a rotational connection between the two rotating shaft portions 163 and the support seat 15.

[0015] like Figure 2 and 3As shown, the support seat 15 is provided with a snap-fit ​​strip 152 that matches the rail body 10, and the rail body 10 is provided with a snap-fit ​​groove 101 that matches the snap-fit ​​strip 152. The snap-fit ​​strip 152 is engaged in the snap-fit ​​groove 101, and constitutes a snap-fit ​​between the support seat 15 and the rail body 10. The support seat and the rail body are assembled in a snap-fit ​​manner, which facilitates the assembly of the support seat and the rail body and improves assembly efficiency. The torsion spring 17 is sleeved on the rotating shaft portion 163. One end of the torsion spring 17 has a first torsion arm 171 that is U-shaped and matches the shielding portion 161. The first torsion arm 171 is engaged in the limiting groove 1611 of the shielding portion 161, and the second torsion spring 172 at the other end of the torsion spring 17 is engaged in the groove 153 of the support seat 15. The torsion spring is engaged with the rotating shaft of the protective door, so as to facilitate the assembly of the torsion spring and the protective door, making the assembly more convenient and ensuring that the protective door can be reliably opened or closed. Two snap-fitting ridges 111 are symmetrically provided on one side of the insulating strip 11, and two slots 102 that match the two snap-fitting ridges 111 are provided on the track body 10. The snap-fitting ridges 111 are engaged in the slots 102 and constitute the snap-fitting between the insulating strip 11 and the track body 10. The insulating strip and the track body are assembled in a snap-fitting manner, which facilitates the assembly of the insulating strip and the track body and improves the assembly efficiency. An opening guide arc surface 1612 is provided on one side of the opening end of the shielding portion 161. An opening guide arc surface that matches the track socket is provided on the shielding portion, so as to facilitate the connection between the power track and the track socket and make it more convenient to use. The grounding conductive sheet 14 has a U-shaped plug-in portion 141 at one end. The rail body 10 is provided with a slot 103 that mates with the plug-in portion 141. The plug-in portion 141 is inserted into the slot 103, forming a snap-fit ​​connection between the grounding conductive sheet 14 and the rail body 10. The grounding conductive sheet is plugged into the rail body via the plug-in portion, facilitating assembly of the grounding conductive sheet and the rail body. When the rail socket is plugged into the power rail, the rail socket contacts the rail body, thereby achieving a ground connection between the rail socket and the rail body.

[0016] A protective door is provided on the bar-shaped slot of the track body. The protective door can cover the bar-shaped slot, and the protective door is reset by a torsion spring, which can ensure that the protective door can reliably cover the bar-shaped slot, and the protective performance is better. Therefore, the power track has the advantages of simple structure, stable and reliable performance, good protection performance and high safety.

Claims

1. A power rail, characterized in that: It includes a track body, insulating strips respectively arranged in the track body, N-pole busbars and L-pole busbars respectively arranged on the insulating strips, a grounding conductive sheet, and a terminal assembly arranged on one end of the track body. The track body is provided with a strip slot, and a support seat is provided on the track body at one side corresponding to the strip slot. A plurality of protective doors covering the strip slots are respectively rotatably provided on the support seat, and a plurality of torsion springs are respectively provided between the plurality of protective doors and the support seat. One side of the protective door has a shielding portion covering the strip slot, and the other side of the protective door has two support arms, and the two support arms are provided with two rotating shaft portions cooperating with the support seat, and the support seat is provided with two positioning grooves cooperating with the two rotating shaft portions, and the two rotating shaft portions are respectively inserted in the two positioning grooves to constitute a rotating connection between the two rotating shaft portions and the support seat.

2. The power rail according to claim 1, wherein: The support seat is provided with a snap-fitting strip that matches the track body, and the track body is provided with a snap-fitting groove that matches the snap-fitting strip. The snap-fitting strip is engaged in the snap-fitting groove and constitutes the snap-fitting between the support seat and the track body.

3. The power rail according to claim 1 or 2, characterized in that: The torsion spring is sleeved on the rotating shaft part, and one end of the torsion spring has a first torsion arm that is U-shaped and cooperates with the shielding part. The first torsion arm is engaged in the limiting groove of the shielding part, and the second torsion spring at the other end of the torsion spring is engaged in the groove of the support seat.

4. The power rail according to claim 1 or 2, characterized in that: Two snap-fitting convex strips are symmetrically arranged on one side of the insulating strip, and two slots matching the two snap-fitting convex strips are arranged on the track body. The snap-fitting convex strips are engaged in the slots and constitute the snap-fitting between the insulating strip and the track body.

5. The power rail according to claim 1 or 2, characterized in that: An opening guide arc surface is provided on one side of the opening end of the shielding portion.

6. The power rail according to claim 1 or 2, characterized in that: One end of the grounding conductive sheet has a U-shaped plug-in portion, and the rail body is provided with a slot that matches the plug-in portion. The plug-in portion is inserted into the slot and constitutes a snap-fit ​​fit between the grounding conductive sheet and the rail body.