WO2021110291A1

WO2021110291A1 - Waterproof power supply track with cable retracting mechanism

Info

Publication number: WO2021110291A1
Application number: PCT/EP2020/068576
Authority: WO
Inventors: Wanjiong Lin; Jun Yang; Kai Xu; Binjie XU
Original assignee: Self Electronics Co., Ltd.; SELF ELECTRONICS Germany GmbH
Priority date: 2019-12-02
Filing date: 2020-07-01
Publication date: 2021-06-10
Also published as: DE112020005984T5; CN111162498A; DE112020005984B4

Abstract

The present invention relates to a cable retracting waterproof supply track or rail comprising a base plate, a plug, a cover over the base plate and enclosed with the base plate to form a chamber, wherein one or more cables are embedded in the chamber; the panel is characterized by a slot shaped along the length of the chamber. The supply track also includes an adjustment mechanism located in the chamber and connected to the cable assembly, and a lower end in the chamber and an upper end in the chamber that is provided by said slide extends beyond the panel to the output head, said plug being attached to the end of the output head; said output head being fixed to the free end of the cable and can be connected and pulled in the direction of the slide groove by the adjusting mechanism, so that the cable slides on the adjusting mechanism to achieve the length in the direction of the slide groove, in a telescopic and adjustable manner. The power supply rail is effectively adjustable for cable length and is waterproof.

Description

WATERPROOF POWER SUPPLY TRACK WITH CABLE RETRACTING

MECHANISM

Related applications

This application is entitled to claim the priority of the Chinese patent application CN 201911216791.0 filed on December 2, 2019.

Technical field

The present invention relates to the field of lighting technology, and in particular to a waterproof power supply track with cable retracting mechanism.

Background technology

Power supply tracks are frequently used in supermarket shelves, shopping malls and other places, but the existing electricity tracks have a fixed internal cable length, so they cannot be used according to the current power supply. The length of the shelf is adjusted by the distance to the actual position to be illuminated.

When the internal cables of the power supply track are too short and the distance to be illuminated is long, in order to power the entire shelf, an external cable is required, which is not aesthetically pleasing and is prone to safety hazards; and when the internal cables of the power supply track are too long and the actual distance to be illuminated on the shelf is short, it is also a problem. It will result in that some of the power supply tracks will not be used, resulting in a waste of resources.

At the same time, the common power pickup rails are not waterproof and are susceptible to moisture, which affects performance.

Content of invention

In view of the above problem, the object of the present invention is to provide a waterproof power supply track with cable retracting mechanism that can be adjusted according to practical needs and that has a good waterproof performance. In order to achieve the above object, the present invention provides: waterproof power supply track with cable retracting mechanism, comprising:

(a) a base plate, a plug, a panel covering the base plate and enclosing the base plate to form a chamber; and a cable embedded in the chamber.

It is characterized in that:

(b) said panel is provided with a slot formed along the length of the chamber. The power supply track also includes an adjustment mechanism located in the chamber and assembled with at least one cable, and an output head whose lower end is located in the chamber and the upper end extends from the panel while sliding in the slot, and the plug is connected to the upper end of the output head.

The output head is fixedly connected to the free end of the cable and can be pulled along the direction of the slot under the coordination/adjustment of the adjusting mechanism, so as to drive the cable to slide on the adjusting mechanism and to achieve adjustable length in the direction of the slide slot.

Preferably, said adjusting mechanism comprises a spring and a movable member that can be moved along the pulling direction of the output head driven by the output head.

Said spring being disposed along the length of the chamber and being fixed to the interior of the chamber at one end and connected to a movable member at the other end.

The fixed end of the cable is fixed in the chamber and the free end is connected to the output head after bypassing the moving member, the cable can be wound when the output head is pulled. The moving member slides and the movement of the moving member cooperates to make the length of the cable on the free end side longer and the cable on the fixed end side shorter.

Preferably, the lower face of the output head is in frictional contact with the inner wall of the base plate, and the friction produces a frictional force greater than the spring rebound force of the spring, so that the output head can be positioned in the slot.

Preferably, when the length of the cable on the side of the fixed end is shortened to zero, the movable member is opposed to the fixed end of the cable.

Preferably, the length of the slot is equal to N times the maximum distance between the movable member and the fixed end of the cable, said N taking a value of 0 < N< 2. Preferably, said spring is in a stretched state when said output head is located at the end of a slide slot near said end of the spring.

Preferably, the cables have two conductors, a positive conductor and a negative conductor, and the surface of the movable member has two arc grooves arranged in concentric circles.

The positive lead fixing end and the negative lead fixing end are fixed to the base plate by the fixing block, and the free end is respectively through the corresponding arc groove and the free end is fixed to the base plate. The outputs are connected and can slide in arc grooves.

Preferably, the power supply track includes an input end cover located at the end of the chamber and extending into the chamber, the input end cover having a DC header, said DC header being divided into a positive input line and a negative input line.

Said positive input line and negative input line are splitting off when extending to the fixed block, one forming said positive conductor and the other forming said negative conductor. It continues to extend along the length of the chamber after passing through the block to form the next positive and negative input lines.

The panel is correspondingly provided with a plurality of slides distributed in series along the length of the chamber.

Preferably, the base plate is provided with a sliding rail along the length of the chamber, and the lower face of the movable member and the lower face of the output head are each shaped with a sliding slot suitable for sliding on a rail.

Preferably, the base plate is also provided with a steel cable disposed along the length of the chamber, and the input end cover and the fixed block are each fixedly connected with the steel cable.

The advantage of the present invention over the prior art is that a moving member is provided inside the supply track and the free end of the cable bypasses the moving member and is connected to the output head which slides in the slots of the panel and moves the moving members in the same direction by pulling the output head, and then the free end of the power cable slides and elongates on the moving member, while the fixed end is shortened, making it possible to extend the length of the cable of the power supply track. Adjustment improves the applicability of the power supply track; a fixed block is located at the position where the cables form a split, which can well prevent the split from being exposed to water ingress. Overview on the drawings

FIG. 1 is a schematic diagram of the overall structure of waterproof power supply track with cable retracting mechanism of this application.

FIG. 2 is a schematic diagram of a first side view on the structure wherein the output head of Fig. 1 is partially removed .

FIG. 3 is a schematic diagram of a second side view on the structure of FIG. 2.

Detailed Description of Embodiments

Embodiments of the invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar formulations used throughout the present description denotes the same or similar components or components having the same or similar functions. The embodiments described below by reference to the accompanying drawings are exemplary and are intended only to explain the invention and are not to be construed as limiting the invention.

As shown in FIGS. 1 to 3 there is a schematic diagram of the structure of the cable retracting waterproof supply track of the present invention. The supply track includes a base plate 1, a plug 2, a panel 3 that covers over the base plate 1 and encloses the base plate 1 to form a chamber 10, at least one embedded cable 4 within the chamber 10. The supply track includes, in addition to the above, other structures such as mounting brackets, utility providing heads. However, as these are not in the focus of this patent application and are known to those skilled in the art, they are not discussed in detail here. Only the essential points of this application are described.

In order to achieve telescopic and adjustable cable lengths for different lighting length requirements, the panel 3 of the supply track is provided with a panel along the chamber 10 lengthwise shaped slot 31, the supply track also includes an adjustment mechanism 5 located in the chamber 10 and assembled with the cables 4 and the the lower end is inside the chamber 10 and the upper end extends out of the panel 3 by the slot 31, the output head 6 and the free end of the cable 4. Fixed connection and can be pulled in the direction of the slot 31 in cooperation with the adjustment mechanism 5, the movement can drive the cable 4 on the adjustment mechanism 5 sliding. It is clear that a change in the position of the output head 6 means a change in the length of the lead 4.

At the same time, it is easy to imagine that, in order to facilitate subsequent assembly connections with lighting devices, the output 6 is best suited for external power The output, therefore, the aforementioned plug 2 is rightfully positioned on the upper end of the output head 6.

Specific to this application, as shown in FIGS. 2-3, is that the adjusting mechanism 5 includes a movement that can be driven by the output head 6 in the direction of pulling along the output head 6. The spring 51 is disposed along the length of the chamber 10 and is fixed to the end of the chamber 10 at one end and the movable member 52 at the other end. Connected to the movable member 52, the fixed end of the cable 4 is fixed in the chamber 10 and the free end is connected to the output head 6 after bypassing the movable member 52. The cable 4 may slide around the movable member 52 when the output head 6 is pulled, and the movement of the movable member 52 cooperates so that the free end side of the length of the cable becomes longer and the cable on the fixed end side becomes shorter.

It is obvious that as long as the spring 51 is not in its natural state, regardless of whether it is currently in tension or compression, it will have an effect on the movable member 52 generating a force that involves the movement of the cable at the free end, which in turn causes the position of the output head 6 to change, also That is to say, the output head 6 cannot be fixed in the desired position, obviously, such a situation cannot be allowed to happen. In order to solve this problem, the lower surface of the output head 6 is designed so that it is in frictional contact with the inner wall of the base plate 1, and the friction generated by this friction causes the lower surface of the output head 6 to be in frictional contact with the inner wall of the base plate 1. The friction force is greater than the spring’s 51 resilience, i.e., this minimum friction force will also be greater than the spring’s 51 maximum resilience, such that the This ensures that the output head 6 is positioned in the slot 31. It is also possible to have only the lower end made of soft rubber and the upper end formed of a relatively hard material, such as plastic, which facilitates friction in the Pulling in the slides, or other material compositions that achieve the above effect can also be used. It should be mentioned that no matter how the cable on the free end side elongates and how the cable on the fixed end side shortens, it will be subjected to a cable length and even the limit of the fixed end of the cable, in other words, when the length of the cable 4 on the fixed end side is shortened to zero, the movable member 52 is the same as the The fixed end of the conductor 4 is offset, specifically in this example, the cable 4 has two conductors, a positive conductor 41 and a negative conductor 42, the fixed end of the positive conductor 41 and the fixed end of the negative conductor 42 are fixed to the base plate 1 by means of a fixing block 7, such that when the When the length of the cable on the fixed end side is shortened to zero, the movable member 52 is offset against the fixed block 7.

It is also based on the above features that the maximum travel distance of the cable at the free end is twice the distance shortened by the cable at the fixed end. See also FIG. 1. The movement of this output head 6 is limited by the length of the slot 31, so that, in effect, the cable on the free end side will to give full play to the output head, wherein the N value is 0<N<2, which is N times the distance shortened by the cable at the fixed end. In this application, the length of the slot 31 and the length of the output head 6 are corresponding of the cable, i.e., the length of the slot 31 is equal to N times the maximum distance between the moving member and the fixed end of the cable, the N takes the value of is 0 < N < 2.

As to whether the spring is always in compression or elongation, or whether there is a change in motion from extension to natural and then to compression. The functions of this application can be realized in a process of changing from a compressed state to a natural state to a stretched state. It is necessary to adjust the connection position between the spring 51 and the movable member 52. According to practical needs, the present application preferably provides that when the output head 6 is located at the end of the slot 31 near the said end of the spring 51, the spring 51 so that the spring is in a tensioned position throughout the process. The tension state is weakest when the output head 6 is at the far end of the slot 31, and is greatest when the spring 51 is in tension. Conductor 4 is in the longest elongated state.

In order to achieve a good sliding of the cable 4 on the movable member 52, see FIG. 2, the surface of the movable member 52 has a concentric circularly set two arc slots 521, the free end of the positive conductor 41 and the free end of the negative conductor 42, respectively, after passing through the corresponding arc slots 521 Connected to the output head 6, as an improvement, the inner wall of the arched groove 521 is smoothly curved to reduce the sliding friction of the cable and improve the Sliding flexibility of the cable.

Continuing with FIGS. 1 and 3, the supply track also includes an input end cap 8 located at the end of the chamber 10 and extending into the chamber 10, the input The end cap 8 is provided with a DC head element or header 9, which divides the positive input line 91 and the negative input line 92. The input line 92 extends to the fixed block 7 when it splits into two circuits, one forming the aforementioned positive conductor 41 and negative conductor 42, and one Continuing to extend along the length of the chamber 10 after passing through the fixation block 7 to form the next positive and negative input line, it is conceivable that the It is obtained that the panel 3 is also provided with a slide slot corresponding to the next positive and negative input lines along the length of the chamber 10 31, i.e., the supply track may be equipped with a plurality of slides, output heads, moving members, springs, etc., as described previously, as needed. This corresponds to the following structure on panel 3, i.e., panel 3 is equipped with multiple lines along the chamber. 10 lengthwise in series with slots 31 for the subsequent output head 6 to pass through, while the subsequent spring 51 is of course fixed on the fixing block 7, as shown in FIG. 2.

At the same time, since the positive input cable 91 and negative input cable 92 are split into two paths at the fixed block 7, and the fixed end of the positive lead 41 and the The fixed ends of the negative conductors 42 are all fixed in the fixing block 7, which, in conjunction with FIGS. 2-3, can be readily thought of as being The bifurcation of the line is equivalent to the bifurcation of the line, and since the fixing block 7 covers the bifurcated end of the line, it prevents moisture from entering, thus providing a good To play a waterproof role, the fixed block 7 is designed to make the water resistance of the power supply guide to IP65 or more.

In order to facilitate sliding, the base plate 1 is provided with a sliding rail 11 along the length of the chamber 10, the lower surface of the movable member 52 and the output head 6 The base face is formed with a sliding slot 522 and a sliding slot 61 for sliding on the slide 11. Also, the base plate 1 is provided with a sliding slot along the A cable 12 is laid out in the lengthwise direction of the chamber 10, and the input end cap 8 and the fixing block 7 are fixedly connected to the cable 12, respectively. In summary, the present invention relates to a cable retracting waterproof supply track or rail comprising a base plate, a plug, a cover over the base plate and enclosed with the base plate to form a chamber, wherein one or more cables are embedded in the chamber; the panel is characterized by a slot shaped along the length of the chamber. The supply track also includes an adjustment mechanism located in the chamber and connected to the cable assembly, and a lower end in the chamber and an upper end in the chamber that is provided by said slide extends beyond the panel to the output head, said plug being attached to the end of the output head; said output head being fixed to the free end of the cable and can be connected and pulled in the direction of the slide groove by the adjusting mechanism, so that the cable slides on the adjusting mechanism to achieve the length in the direction of the slide groove, in a telescopic and adjustable manner. The power supply rail is effectively adjustable for cable length and is waterproof.

Although embodiments of the present invention have been shown and described, it will be understood by those of skill in the art that, without departing from the principles and purposes of the present invention, the scope of the invention is defined by the claims and their equivalents.

Claims

1. A waterproof power supply track with cable retracting mechanism, comprising: a base plate (1), a plug (2), a panel (3) covering the base plate (1) and enclosing the base plate (1) to form a chamber (10); and a cable (4) embedded in the chamber (10); characterized in that the panel (3) is provided with a slot (31) formed along the length of the chamber (10), the power supply track also comprises an adjustment mechanism (5) located in the chamber (10) and assembled with the cable (4), and an output head (6) whose lower end is located in the chamber (10) and the upper end extends from the panel (3) while sliding in the slot (31), and the plug (2) is connected to the upper end of the output head (6); the output head (6) is fixedly connected with the free end of the cable (4), and can be pulled along the direction of the slot (31) under the coordination of the adjusting mechanism (5), so as to drive the cable (4) to slide on the adjusting mechanism (5) and to achieve adjustable length in the direction of the slide slot (31).

2. The waterproof power supply track as claimed in claim 1, characterized in that the adjustment mechanism (5) comprises a spring (51) and a moving member (52) which can move along the pulling direction of the output head (6) driven by the output head (6); the spring (51) is disposed along the length of the chamber (10) and is fixed to the interior of the chamber (10) at one end and to the moving member (52) at the other end.

3. The waterproof power supply track as claimed in claim 2, characterized in that the lower end face of the output head (6) is in friction contact with the inner wall of the base plate (1), and the friction force generated by the friction is greater than the resilience of the spring (51), so that the output head (6) can be positioned in the slot (31).

4. The waterproof power supply track as claimed in claim 2, characterized in that, when the length of the cable (4) on one side of the fixed end is shortened to zero, the moving member (52) butts with the fixed end of the cable (4).

5. The waterproof power supply track as claimed in claim 4, characterized in that the length of the slot (31) is equal to N times of the maximum distance between the moving member (52) and the fixed end of the conductor (4), and the value of n is 0 < n < 2

6. The waterproof power supply track as claimed in claim 2, characterized in that when the output head (6) is located at the end of a slot (31) close to one end of the spring (51), the spring (51) is in a stretching state.

7. The waterproof power supply track as claimed in claim 2, characterized in that the cable (4) has two conductors, a positive conductor (41) and a negative conductor (42), and the surface of the moving member (52) is provided with two arc grooves (521) arranged in concentric circles; wherein the fixed end of the positive conductor (41) and the fixed end of the negative conductor (42) are fixed on the base plate (1) through the fixing block (7), while the free end respectively passes through the corresponding arc groove (521) and is connected with the output head (6) and can slide in the arc groove (521).

8. The waterproof power supply track as claimed in claim 7, characterized in that the power supply track also includes an input end cover (8) located at the end of the chamber (10) and extending into the chamber (10); wherein a DC head (9) is arranged on the input end cover (8), and the DC head (9) is divided into a positive input line (91) and a negative input line (92); wherein, when the positive input line (91) and the negative input line (92) extend to the fixed block (7), they are divided into two paths, one of which forms the positive lead (41) and the negative electrode cable (42), and the other passes through the fixed block (7) and continues to elongate along the length direction of the chamber (10) to form the next positive input line and negative input line; wherein the panel (3) is correspondingly provided with a plurality of slideways (31) distributed in series along the length direction of the chamber (10).

9. The waterproof power supply track as claimed in claim 2, characterized in that the base plate (1) is provided with a slide rail (11) arranged along the length direction of the chamber (10), wherein the lower end face of the moving member (52) and the lower end surface of the output head (6) are respectively formed with sliding grooves (522, 61) suitable for sliding on the slide rail (11).

10. The waterproof power supply track as claimed in claim 8, characterized in that the base plate (1) is also provided with a steel cable (12) arranged along the length direction of the chamber (10), and the input end cover (8) and the fixed block (7) are fixedly connected with the steel cable (12).