Power rail and rail socket

Abstract

The present invention provides a protective door, a power rail, and a rail socket belonging to the field of socket technology. The protective door includes a door base, a door plate, and a reset spring, wherein the door base has a first limit structure, and the door plate has a second limit structure, and the door plate is fitted into the door base by the cooperation of the first and second limit structures, and the door plate is movable relative to the door base, and the reset spring is located between the door base and the door plate, and the direction of extension and contraction of the reset spring is parallel to the direction of movement of the door plate. By adopting this disclosure, users can insert and remove adapters from the power rail with little force, the insertion and removal of adapters becomes smoother, deformation and aging of the protective door is less likely to occur, it is less susceptible to the effects of oil fumes and salt, it is more durable, the service life of the power rail can be further extended, and the user experience can be improved.

Description

Technical Field

[0001] This application claims the priority of the Chinese patent application with application number 202320972947.3, utility model name "Protective Door, Power Rail, and Rail Socket" filed on April 25, 2023, and the Chinese patent application with application number 202320975781.0, utility model name "Housing, Power Rail, and Rail Socket" filed on April 25, 2023, and all of its contents are incorporated herein by reference. This application relates to the field of socket technology, and particularly to protective doors, power rails, and rail sockets.

Background Art

[0002] As a new type of socket product, the rail socket mainly consists of a power rail (also called a power supply rail) and an adapter. Here, the power rail is attached to a wall or a desktop by its backplate. The adapter can be inserted into the power rail and moved left and right along the power rail, and the number can be increased or decreased according to the user's needs. Therefore, the rail socket is popular in the market because of its good usability.

[0003] The housing of the power rail has a rail opening for inserting the adapter, and dust is likely to enter the inside of the power rail from the rail opening, wearing the internal conductive plate and reducing the service life of the power rail.

Summary of the Invention

Means for Solving the Problems

[0004] This application provides a protective door, a power rail, and a rail socket that can overcome the problem in the related technology that dust enters the inside of the power rail from the rail opening, wears the internal conductive plate, and reduces the service life of the power rail. The technical solution is as follows.

[0005] According to the first embodiment, a protective door includes a door base, a door plate, and a reset spring. The door base has a first limit structure, the door plate has a second limit structure, the door plate is fitted into the door base by the cooperation of the first limit structure and the second limit structure, and the door plate is movable relative to the door base. The reset spring is located between the door base and the door plate, and the direction of extension and contraction of the reset spring is parallel to the direction of movement of the door plate.

[0006] As one option, the first surface of the door base has a limit cavity, and the first limit structure is located in the cavity wall of the limit cavity. The first end face of the door plate has a limit convex block, and the second limit structure is located on the side wall of the limit convex block. The end of the limit convex block is inserted into the limit cavity, and the first limit structure and the second limit structure cooperate.

[0007] As one option, a spring post is provided on the first surface of the door base and within the limit cavity, with one end of the reset spring fitted to the outside of the spring post and the other end in contact with the end face of the limit convex block.

[0008] As one option, the limit convex block has a spring groove with a notch facing the door base, and the end of the reset spring abuts against the bottom of the spring groove.

[0009] As one option, the first end face of the door plate has a counterbore groove toward the door base, and the limit convex block is located at the bottom of the counterbore groove.

[0010] As one option, the door base is elongated, and multiple limit cavities are provided, with the multiple limit cavities arranged sequentially along the longitudinal direction of the door base. Multiple door plates are provided, and the end of the limit convex block of each door plate is inserted into one of the limit cavities.

[0011] As one option, the first surface of the door base has a plurality of separation ribs along the longitudinal direction, and the separation ribs are located between two adjacent limit cavities.

[0012] As one option, the lower surface of the door plate has a limit rib located near the door base, and the lower surface of the door plate is the surface facing the electrode channel of the power rail to which it belongs. When the protective door obstructs the rail opening of the power rail, the limit rib contacts or comes very close to the side wall of the electrode channel.

[0013] As one option, both the first limit structure and the second limit structure are provided in pairs. Two of the aforementioned 1 limit structures face each other, two of the aforementioned 2 limit structures face each other, one 1 limit structure and one 2 limit structure cooperate, and the other 1 limit structure and the other 2 limit structure cooperate.

[0014] As one option, one of the first limit structure and the second limit structure is a strip-shaped groove or strip-shaped opening, and the other is a projection structure, wherein the longitudinal direction of the strip-shaped groove or strip-shaped opening is parallel to the direction of movement of the door plate.

[0015] According to the second aspect, with respect to the power rail, the power rail includes a housing and a protective door as described in the first aspect, The housing includes a cover and a bottom plate, the panel of the cover has rail openings, the bottom plate has electrode channels, the cover and the bottom plate are detachably connected by a connecting structure, the rail openings and the electrode channels face each other, The protective door is interposed between the cover and the bottom plate, the door base is attached to the bottom plate, and the door plate is movably positioned between the panel and the electrode channel. When the door plate moves to the side of the rail opening, the rail opening and the electrode channel communicate with each other. When the door plate moves to a position that obstructs the rail opening, the rail opening and the electrode channel cease to communicate with each other.

[0016] As one option, when the adapter is inserted into the power rail, the n door plates move to the side of the rail opening, and when the adapter is withdrawn from the power rail, the n door plates move to a position that obstructs the rail opening by a connected reset spring, where n is a positive integer.

[0017] As one option, the connection structure includes a first engagement structure and a second engagement structure. The first engagement structure is located on the inner surface of the panel and distributed along the longitudinal direction of the panel, and the second engagement structure is located on the inner surface of the bottom plate and distributed along the longitudinal direction of the bottom plate, and the first engagement structure and the second engagement structure cooperate with each other.

[0018] The aforementioned connection structure further includes a screw, The first engagement structure and the second engagement structure are connected by the screw.

[0019] As one option, the cover further includes a side plate, and a wiring channel is formed between the side plate and the connecting structure, where the side plate is located on the side along the width direction of the panel.

[0020] As one option, the housing further includes a back plate, and the back plate is covered on the outer surface of the bottom plate and fitted into the connection structure.

[0021] As one option, one of the first engagement structure and the second engagement structure is an engagement groove, and the other is a protruding rib. The first engagement structure and the second engagement structure are engaged with each other in the engagement groove by the protruding rib to cooperate.

[0022] As one option, when the bottom plate and the panel are fixed, there is a gap between the top wall of the electrode channel and the panel.

[0023] An attachment cavity for attaching a protection door is formed among the panel, the electrode channel, and the bottom plate.

[0024] As one option, on the inner surface of the bottom plate and within the attachment cavity, there is a third protruding rib for fixing the protection door. The third protruding rib includes a standing portion and an inclined portion. The inclined portion is away from the inner surface of the bottom plate and inclined toward the position of the electrode channel, and the angle formed with the standing portion is an obtuse angle.

[0025] According to a third aspect, regarding the rail socket, the rail socket includes an adapter and the power rail according to the second aspect, and the adapter is detachably connected to the power rail.

[0026] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and are not intended to limit the present disclosure.

[0027] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments applicable to the present disclosure and used to explain the principles of the present disclosure together with the specification.

Brief Description of the Drawings

[0028] [Figure 1] This is a schematic diagram of the structure of the power rail housing according to the embodiment. [Figure 2] This is a schematic diagram of the structure of the power rail housing according to the embodiment. [Figure 3] This is a schematic diagram of the structure of a protective door according to an embodiment. [Figure 4] A schematic diagram of the structure in which the protective door according to the embodiment is located inside the housing and the protective door is in the open position. [Figure 5] A schematic diagram of the structure in which the protective door according to the embodiment is located inside the housing and the protective door is in the closed position. [Figure 6] This is a schematic diagram of the door base structure of a protective door according to an example. [Figure 7] This is a schematic diagram of the structure of the door plate of a protective door according to an embodiment. [Figure 8] This is a schematic diagram of the structure of the door plate of a protective door according to an embodiment. [Figure 9] This is a schematic diagram of the door base structure of a protective door according to an example. [Figure 10] This is a schematic diagram of the structure of the power rail housing according to the embodiment. [Modes for carrying out the invention]

[0029] The above drawings illustrate embodiments as expressed in this disclosure, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concepts of this disclosure in any way, but are intended to illustrate the concepts of this disclosure to those skilled in the art by reference to specific embodiments.

[0030] To further clarify the purpose, technical proposal, and advantages of this disclosure, embodiments of this disclosure will be described in more detail below with reference to the drawings.

[0031] The terms used in the embodiments of this disclosure are for illustrative purposes only and not to limit the disclosure. Unless otherwise defined, technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art. The terms “first,” “second,” “third,” and similar terms used in the specification and claims of this disclosure are not intended to indicate any order, number, or importance, but merely to distinguish different components. Similarly, similar terms such as “one” and “one” are not intended to indicate a limit on the number, but to indicate that there is at least one. Similar terms such as “includes” or “inclusive” mean that the element or object appearing before the term “includes” or “inclusive” covers the elements or objects and their equivalents listed after the term “includes” or “inclusive,” without excluding other elements or objects. Similar terms such as “connection” or “link” can be interpreted to include electrical connections, whether direct or indirect, and not limited to physical or mechanical connections. Terms like "up," "down," "left," and "right" are used solely to describe relative positions; if the absolute position of the described object changes, the relative position may also change accordingly.

[0032] In this embodiment, a protective door is provided, which is specifically applied to a power rail of a rail socket, where the rail socket is a new type of socket product whose structure mainly consists of a power rail and an adapter. The power rail can be mounted on a wall or embedded in a desktop, and the adapter is removably inserted into the power rail and can be inserted at any position on the power rail, and the adapter has a jack for obtaining power, and power can be obtained by plugging the plug of an electrical device into the jack of the adapter.

[0033] The number of adapters in a rail socket can be flexibly increased or decreased as needed, and the position of the adapters can be flexibly adjusted according to the location of the electrical equipment. There is no need to worry even if the power cord of the electrical equipment is short. Furthermore, rail sockets are safer and look better than ordinary sockets. Therefore, rail sockets are widely popular in the market because of the advantages mentioned above.

[0034] The power rail is structurally composed mainly of a housing 1, a conductive plate, an insulating bracket, and a wiring box. Here, the housing 1 serves a protective function as the housing for the power rail, and its material may be an aluminum profile. Regarding the structural features of the housing 1, as shown in Figure 1, the panel 111 of the housing 1 has a rail opening 113, and the housing 1 has an electrode channel 121.

[0035] In this manner, the conductive plate and the insulating bracket are both mounted within the electrode channel 121, the conductive plate is held in place by the insulating bracket, and the wiring box is attached to one end of the housing 1. The wiring box contains wiring terminals, which are used to connect the conductive plate to the power lines inside the wall. The power acquisition unit of the adapter passes through the rail opening 113 and enters the electrode channel 121, making an electrical connection by contacting the conductive plate inside the electrode channel 121. The top of the adapter has a jack for acquiring power, and power can be acquired by plugging the plug of an electrical device into the jack of the adapter.

[0036] Because the rail opening 113 of the power rail is open to the outside, it lacks safety and is susceptible to water and dust intrusion. Water intrusion may cause safety accidents, and dust intrusion will wear down the conductive plate inside the electrode channel 121. Both water and dust intrusion reduce the lifespan of the power rail.

[0037] Therefore, for dustproofing, foreign object prevention, and aesthetic purposes, the power rail may further include a protective door, which is located inside the enclosure and used to shield the rail opening 113.

[0038] To facilitate the insertion of the adapter into the rail opening 113, protective doors currently on the market are typically soft rubber seals that are easily deformed when pressed. However, such protective doors undergo plastic deformation over time, collapsing and failing to achieve a sealing effect, especially when applied to kitchen environments with oil fumes and salt. Furthermore, in environments with oil fumes and salt, these protective doors age rapidly and harden, affecting the insertion and removal of the adapter and its movement along the rail opening.

[0039] The protective door for the power rail in this embodiment is made of plastic, which has good contact properties, excellent aging resistance, and deformation resistance, thus extending the service life of the power rail and improving the user experience.

[0040] The power rail includes a housing 1, and the structural features of the housing 1 are as shown in Figures 1 and 2. The housing 1 may include a cover 11 and a bottom plate 12. The cover 11 has a cover-type structure and includes a panel 111 and two side plates 112. The panel 111 has a rail opening 113 arranged along its longitudinal direction, where the center line of the rail opening 113 and the center line of the panel 111 can overlap, i.e., the rail opening 113 is located on the center line of the panel 111.

[0041] Referring to Figures 1 and 2, the bottom plate 12 is plate-shaped, and the upper surface of the bottom plate 12, that is, the surface facing the cover 11, has an electrode channel 121.

[0042] Here, the electrode channel 121 and the rail opening 113 face each other, so that the power acquisition unit of the adapter is inserted into the rail opening 113, enters the electrode channel 121, and is electrically connected to the conductive plate inside the electrode channel 121. In order to allow the adapter to enter the electrode channel 121, as shown in Figures 1 and 2, the top wall of the electrode channel 121 facing the panel 111 has a relief opening 122, and the relief opening 122 and the rail opening 113 face each other.

[0043] Regarding the assembly of the cover 11 and the bottom plate 12, the housing 1 may have a segmented structure, and the cover 11 and the bottom plate 12 may be independent of each other and may be fixed by engagement, by screws, or by a combination of engagement and screws. For example, first the cover 11 and the bottom plate 12 are temporarily positioned, and then the cover 11 and the bottom plate 12 are fixed with screws. Here, the temporary positioning of the cover 11 and the bottom plate 12 can be achieved by engagement.

[0044] For example, as shown in Figures 1 and 2, on the upper surface of the base plate 12, there are second protruding ribs 124 on both the left and right sides of the electrode channel 121, and on the lower surface of the panel 111, that is, the surface facing the base plate 12, there are third protruding ribs 114 and fourth protruding ribs 115, and a first engagement groove 116 is formed between the third protruding rib 114 and the fourth protruding rib 115, and the second protruding rib 124 on the upper surface of the base plate 12 engages with the first engagement groove 116, thereby achieving temporary positioning of the cover 11 and the base plate 12.

[0045] The second protruding rib 124, the third protruding rib 114, and the fourth protruding rib 115 are all strip-shaped protruding ribs arranged along the longitudinal direction of the housing 1.

[0046] In one example, the power rail further includes a protective door, which is mounted on the housing 1, and the housing 1 further includes a mounting cavity for the protective door, as shown in Figure 2, the mounting cavity 11-12 for the protective door is formed by being surrounded by a panel 111, two third projection ribs 114 on the left and right, a bottom plate 12, and an electrode channel 121, and the protective door is mounted within the mounting cavity 11-12.

[0047] The housing 1 described above is formed by assembling the cover 11 and the bottom plate 12. In another example, the housing 1 may be an integrally molded structure including the cover 11 and the bottom plate 12.

[0048] The structural features of the enclosure 1 have been described above, but in this embodiment, the specific structural features of the enclosure 1 are not specifically limited.

[0049] Furthermore, in order to facilitate the attachment of the protective door 2 to the housing 1, the housing 1 may be a housing with a divided structure including the cover 11 and bottom plate 12 described above. The specific features of the housing with a divided structure will be described in detail in the following embodiment of the power rail.

[0050] The power rail further includes a protective door 2, where, as shown in Figure 4, there may be two protective doors 2, and the two protective doors may be symmetrically arranged with respect to a vertical plane containing the center line of the rail opening 113, one located on the left side of the vertical plane and referred to as the left protective door, and the other located on the right side of the vertical plane and referred to as the right protective door.

[0051] As shown in Figure 4, when protective door 2 is open, the left and right protective doors are separated, thereby exposing the rail opening 113 and allowing the adapter to enter the electrode channel 121. As shown in Figure 5, when protective door 2 is closed, the left and right protective doors are in contact or very close together, shielding the rail opening 113 together.

[0052] As can be seen from the above, the power rail includes a protective door, and when the adapter is not inserted into the rail opening, the door plate of the protective door shields and seals the rail opening. When the adapter is inserted into the rail opening, the adapter applies force to the door plate, pushing it to one side of the rail opening, so that the door plate no longer shields the rail opening, and the adapter comes into contact with the conductive plate in the electrode channel. When the adapter is pulled out of the rail opening, the reset spring springs back and pushes the door plate back into a position that shields the rail opening. Furthermore, with respect to the power rail, the shielding of the rail opening by the protective door improves the safety of the power rail and also achieves the effect of extending the service life of the power rail by providing waterproof, dustproof, and oil-proof functions.

[0053] The structural features of the protective door 2 are described below. As shown in Figure 3, the protective door 2 includes a door base 21, a door plate 22, and a reset spring 23. Here, the door plate 22 is used to shield the rail opening 113, the door base 21 is used as a fastener to attach the door plate 22 to the housing 1, and the reset spring 23 is mounted between the door base 21 and the door plate 22. The extension and contraction direction of the reset spring 23 is parallel to the direction of movement of the door plate 22 and is used to return the door plate 22 to a position that shields the rail opening 113.

[0054] In one example, the protective door 2 is mounted inside the housing 1 by a door base 21, and for example, as shown in Figure 2, on the upper surface of the bottom plate 12, there is a first protruding rib 123 between a second protruding rib 124 and an electrode channel 121, and a second engagement groove 125 is formed between the first protruding rib 123 and the second protruding rib 124, so that the door base 21 can engage with the second engagement groove 125, as shown in Figure 4, and the door base 21 is specifically engaged between the first protruding rib 123 and the third protruding rib 114.

[0055] The protective door 2 is located inside the housing 1. When the adapter is inserted into the rail opening 113, the door plate 22 moves to the side of the rail opening 113, as shown in Figure 4. When the adapter is withdrawn from the rail opening 113, the door plate 22 moves to a position that shields the rail opening 113 due to the elastic action of the reset spring 23, as shown in Figure 5. Note that the adapter is not shown in Figures 4 and 5.

[0056] For example, the material of the protective door 2 may be plastic. For instance, the door base 21 and the door plate 22 may both be made of plastic. Compared to rubber, plastic is relatively hard, less prone to deformation, has excellent aging resistance, and is less susceptible to the effects of oil fumes and salt. As a result, such a protective door can extend the service life of the power rail and improve the user experience.

[0057] In one example, to prevent the door plate 22 from falling off the door base 21 when it moves back and forth relative to the door base 21, as shown in Figure 6, the door sheet 21 has a first limit structure 211, and as shown in Figure 7, the door plate 22 has a second limit structure 221. In this way, the door plate 22 is fitted into the door base 21 by the cooperation of the first limit structure 211 and the second limit structure 221.

[0058] In order to allow switching between a state in which the door plate 2 shields the rail opening 113 and a state in which the rail opening 113 is exposed, the door plate 22 is also movable relative to the door base 21.

[0059] Regarding the specific structures of the first limit structure 211 and the second limit structure 221, for example, the first limit structure 211 may be a strip-shaped opening or a strip-shaped groove, and the second limit structure 221 may be a projection structure. Referring to Figure 3, the first limit structure 211 is a strip-shaped opening, and the second limit structure 221 is a projection structure.

[0060] Alternatively, the first limit structure 211 is a projection structure, and the second limit structure 221 is a strip-shaped opening or a strip-shaped groove.

[0061] In this way, by positioning the protruding structure in a strip-shaped opening, or by positioning the protruding structure in a strip-shaped groove, the door plate 22 can be fitted into the door base 21.

[0062] Since the door plate 22 is movable relative to the door base 21, in order to provide movable space for the movement of the door plate 22, the longitudinal direction of the strip-shaped opening or strip-shaped groove is set to be parallel to the direction of movement of the door plate 22. In this way, the movement of the door plate 22 relative to the door base 21 can be satisfied, the fitting of the door plate 22 and the door base 21 can be achieved, and the door plate 22 can not be separated from the door plate 22.

[0063] In this embodiment, the specific structural forms of the first limit structure 211 and the second limit structure 221 are not limited. For example, the first limit structure 211 can be a strip-shaped opening, and the second limit structure 221 can be a projection structure.

[0064] In one example, the length of the first limit structure 211 may be equal to the travel stroke of the door plate 22, or it may be slightly greater than the travel stroke of the door plate 22.

[0065] In this way, when the door plate 22 shields the rail opening 113, the second limit structure 221 on the door plate 22 may contact or come very close to the edge of the first limit structure 211 on the door base 21. As can be seen from the above, even if the elastic force of the reset spring 23 is relatively large, the door plate 22 will not detach from the door base 21 because the second limit structure 221 is locked to the edge of the first limit structure 211.

[0066] In one example, in order to form a first limit structure 211 on the door base 21, a limit cavity 210 is provided on the first surface of the door base 21, as shown in Figure 6, and the first limit structure 211 is an opening provided in the cavity wall of the limit cavity 210. Here, the first surface of the door base 21 is a surface that faces the door plate 22 and is perpendicular to the direction of movement of the door plate 22.

[0067] In another example, as a different way of forming the first limit structure 211 on the door base 21, the first surface of the door base 21 may have a side wall perpendicular to the first surface, and the first limit structure 211 may be an opening provided in the side wall.

[0068] In this embodiment, the method for forming the first limit structure 211 is not specifically limited, and as an example, it may be formed on the cavity wall of the limit cavity 210.

[0069] In one example, to form a second limit structure 221 on the door plate 22, a limit convex block 220 is provided on the first end face of the door plate 22, as shown in Figure 7, and the second limit structure 221 can be located on the side wall of the limit convex block 220. In this way, the end of the limit convex block 220 is inserted into the limit cavity 210, and the second limit structure 221 can be located within the first limit structure 211.

[0070] Here, the first end face of the door plate 22 is a surface that faces the door base 21 and is perpendicular to the direction of movement of the door plate 22.

[0071] In one example, regarding the number of first limit structures 211 and second limit structures 221, as shown in Figures 6 and 7, there are two of each, the two first limit structures 211 face each other, the two second limit structures 221 face each other, one second limit structure 221 is located within one first limit structure 211, and the other second limit structure 221 is located within the other first limit structure 211.

[0072] Of course, the first limit structure 211 and the second limit structure 221 may be provided in greater numbers, and in the drawings of this embodiment, a configuration in which two first limit structures 211 and two second limit structures 221 are provided is shown as an example.

[0073] For example, if the second limit structure 221 detaches from the first limit structure 211, and the springback force of the reset spring 23 is relatively large, the door plate 22 will detach from the door base 21. To avoid this situation, a limit rib 224 is provided on the underside of the door plate 22, close to the door base 21, as shown in Figures 7 and 8. When the protective door 2 shields the rail opening 113 of the power rail, the limit rib 224 contacts or comes very close to the side wall of the electrode channel 121.

[0074] Here, the lower surface of the door plate 22 is the surface facing the electrode channel 121 of the power rail to which it belongs.

[0075] As can be seen from the above, even if the second limit structure 221 detaches from the first limit structure 211, the side wall of the electrode channel 121 inside the housing 1 restrains the limit rib 224, thereby preventing the door plate 22 from continuing to move away from the door base 21. Consequently, the limit rib 224 contacts the side wall of the electrode channel 121, further preventing the door plate 22 from detaching from the door base 21.

[0076] In one example, as described above, the reset spring 23 is located between the door base 21 and the door plate 22. For example, as shown in Figure 9, there is a spring post 212 on the first surface of the door base 21 and inside the limit cavity 210, with one end of the reset spring 23 fitted to the outside of the spring post 212 and the other end in contact with the end face of the limit convex block 220.

[0077] In one example, the reset spring 23 is fitted to the outside of the spring post 212, and the spring post 212 ensures that the extension and contraction motion of the reset spring 23 is as linear as possible. Furthermore, since the spring post 212 is located inside the limit cavity 210, the cavity wall of the limit cavity 210 also helps to some extent to ensure that the extension and contraction motion of the reset spring 23 is as linear as possible.

[0078] In one example, as shown in Figure 7, the limit convex block 220 has a spring groove 222 with a notch facing the door base 21, and one end of the reset spring 23 abuts against the bottom of the spring groove 222.

[0079] As shown in Figure 7, the end of the reset spring 23 abuts against the bottom of the spring groove 222, which allows the size of the protective door 2 along the longitudinal direction of the reset spring 23 to be reduced compared to the case where the end of the reset spring 23 abuts against the first end face of the limit convex block 220, and further reduces the space occupied by the protective door 2 in the housing 1.

[0080] In one example, as shown in Figure 7, the first end face of the door plate 22 has a counterbore groove 223 that leads to the door base 21, and the limit convex block 220 is located at the bottom of the counterbore groove 223.

[0081] Such limiting convex block 220 is located within the counterbore groove 223, which reduces the size of the door plate 22 along the longitudinal direction of the reset spring 23, and consequently reduces the size of the protective door, thereby reducing the space occupied by the protective door in the housing 1.

[0082] In one example, the rail opening 113 is arranged along the longitudinal direction of the power rail, that is, since the rail opening 113 is elongated, the protective door 2 also needs to be elongated, and accordingly, as shown in Figure 6, the door base 21 can be elongated, and multiple limit cavities 210 are provided, and the multiple limit cavities 210 are arranged sequentially along the longitudinal direction of the door base 21. As shown in Figure 3, multiple door plates 22 and reset springs 23 are also provided, and the end of the limit convex block 220 of each door plate 22 is inserted into one limit cavity 210, and each reset spring 23 is located between the door base 21 and one door plate 22, for example, each reset spring 23 is fitted outside the spring post 212 in one limit cavity 210, and its end abuts against the bottom of the spring groove 222 of one door plate 22.

[0083] In one example, to prevent two adjacent door plates 22 from interfering with each other during movement, there are correspondingly multiple separation ribs 213 along the longitudinal direction on the first surface of the door base 21, as shown in Figure 6, and separation ribs 213 between two adjacent limit cavities 210. In this way, when the limit convex block 220 of each door plate 22 is inserted into one limit cavity 210, the separation ribs 213 between two adjacent door plates 22 prevent their movement from interfering with each other.

[0084] In this way, when one adapter is inserted into the rail opening 113, the n door plates 22 move to the side of the rail opening 113 under the biasing force of the adapter, while the door plates 22 not under the biasing force of the adapter remain blocking the rail opening 113, and when the adapter is withdrawn from the rail opening 113, these n door plates 22 return to the blocking rail opening 113 due to the elastic action of the connected reset spring 23.

[0085] Here, n is a positive integer; for example, n may be 1, or a value in the range of 2 to 8, and of course, n may be a number greater than 8.

[0086] In one example, the length of one door base 21 can be matched to the length of the rail opening 113, for example, the length of the door base 21 can be set to be approximately equal to the length of the rail opening 113.

[0087] In another example, because the rail opening 113 is relatively long, multiple door bases 21 may be provided, and the multiple door bases 21 are arranged along the longitudinal direction of the rail opening 113, with their ends connected sequentially.

[0088] For example, multiple door bases 21 are arranged on the left side of the rail opening 113, with the front and end connected sequentially along the longitudinal direction of the rail opening 113, and multiple door bases 21 are arranged on the right side of the rail opening 113, with the front and end connected sequentially along the longitudinal direction of the rail opening 113.

[0089] In one example, after inserting the adapter into the rail opening 113, the door plate 22 may include a horizontal portion 225 and an inclined portion 226, which may be integrally molded, in order to smoothly move the door plate of the left protective door to the left and the door plate of the right protective door to the right, as shown in Figure 8.

[0090] Here, the angle θ between the horizontal section 225 and the inclined section 226 may be an obtuse angle.

[0091] In one example, the inclined portion 226 of the door plate 22 acts as a guide during the process in which the adapter passes through the rail opening 113 and is inserted into the electrode channel 121. Thus, referring to Figure 5, the end of the inclined portion 226 extends into the relief opening 122 of the electrode channel 121.

[0092] In this way, once the power acquisition section of the adapter is inserted into the rail opening 113, if it continues to be inserted in the direction of the electrode channel 121, the guiding action of the inclined portion 226 of the door plate 22 allows the door plate of the left protective door to move smoothly to the left, and the door plate of the right protective door to move smoothly to the right.

[0093] In this embodiment, the power rail includes a protective door. When the adapter is not inserted into the rail opening, the door plate of the protective door shields and seals the rail opening. When the adapter is inserted into the rail opening, the adapter applies force to the door plate, pushing it to one side of the rail opening. The door plate no longer shields the rail opening, allowing the adapter to contact the conductive plate in the electrode channel. When the adapter is pulled out of the rail opening, the reset spring springs back, pushing the door plate back into a position that shields the rail opening. Furthermore, the shielding of the rail opening by the protective door improves the safety of the power rail and extends its service life by providing waterproof and dustproof functionality.

[0094] Furthermore, the protective door includes a door base and a door plate, both of which are made of plastic. Compared to protective doors made entirely of metal, such a protective door allows users to insert and remove the adapter from the power rail with less force, resulting in smoother insertion and removal of the adapter and eliminating metallic friction noise during insertion and removal, thus improving the user experience.

[0095] Compared to protective doors made entirely of rubber, these plastic doors are relatively hard, less prone to deformation, have excellent aging resistance, are less susceptible to the effects of oil fumes and salt, and are more durable, further extending the service life of power rails and improving the user experience to some extent.

[0096] In this embodiment, a rail socket is further provided, which includes a power rail and an adapter, where the power rail is the power rail described above, and a plurality of adapters are provided, each adapter being detachably connected to the power rail.

[0097] When the adapter is not inserted into the rail opening 113, the protective door of the power rail is closed. When the adapter is inserted into the rail opening 113, the protective door is open, and the power acquisition part of the adapter enters the electrode channel 121.

[0098] As described above, in order to facilitate the attachment of the protective door to the housing 1, the housing 1 of the rail socket may be a housing with a segmented structure, and as shown in Figure 10, it includes the cover 11 and bottom plate 12 described above. In assembly, the protective door 2 can first be attached to the bottom plate 12, and then the cover 11 and bottom plate 12 can be fixed together.

[0099] For example, the protective door 2 is interposed between the cover 11 and the bottom plate 12, the door base 21 is attached to the bottom plate 12, and the door plate 22 is movably positioned between the panel and the electrode channel 121.

[0100] When the door plate 22 moves to the side of the rail opening 113, the rail opening 113 and the electrode channel 121 are in communication, and when the door plate 22 moves to a position that shields the rail opening 113, the rail opening 113 and the electrode channel are no longer in communication.

[0101] The following describes the structural features of the power rail's segmented enclosure 1.

[0102] Here, the cover 11 and the bottom plate 12 are fixedly connected by a connecting structure on both sides along the width direction of the electrode channel 121.

[0103] For example, the cover 11 and the bottom plate 12 are fixedly connected by one connection structure on one side of the electrode channel 121, and by another connection structure on the other side of the electrode channel 121.

[0104] In one example, the connecting structure is an engaging structure, and accordingly, as shown in Figure 10, the inner surface of the panel 111 has a first engaging structure (e.g., a first engaging groove 116) distributed along the longitudinal direction, and the inner surface of the bottom plate 12 has a second engaging structure (e.g., a second protruding rib 124) distributed along the longitudinal direction. In this way, the first engaging structure and the second engaging structure form a single connecting structure, and the bottom plate 12 is fixed to the inner surface of the panel 111 by the cooperation of the first and second engaging structures.

[0105] Here, the inner surface of panel 111 is the surface facing the base plate 12, and the inner surface of the base plate 12 is the surface facing panel 111.

[0106] As shown in Figure 10, the first engagement structure may be an engagement groove, and the second engagement structure may be a protruding rib. Alternatively, the first engagement structure may be a protruding rib, and the second engagement structure may be an engagement groove.

[0107] In this way, one of the first engagement structure and the second limit structure is an engagement groove, and the other is a projection rib, and the first engagement structure and the second engagement structure cooperate, that is, the projection rib engages with the engagement groove, thereby achieving a fixed connection between the cover 11 and the bottom plate 12.

[0108] Here, the protruding rib engages with the engagement groove, for example, by press-fitting the protruding rib into the engagement groove.

[0109] In this embodiment, we do not specifically limit which of the first and second engagement structures is the engagement groove and which is the projection rib. For example, the first engagement structure may be referred to as the engagement groove and denoted as the first engagement groove 116, and the second engagement structure may be referred to as the projection rib and denoted as the second projection rib 124.

[0110] Since two connection structures are provided, two first engagement grooves 116 and two second projection ribs 124 are also provided. As shown in Figure 10, the two first engagement grooves 116 are located on both the left and right sides along the width direction of the rail opening 113, and the two second projection ribs 124 are located on both the left and right sides along the width direction of the electrode channel 121.

[0111] As shown in Figure 10, the first engagement groove 116 and the second projection rib 124 located on the left side of the electrode channel 121 cooperate, and the first engagement groove 116 and the second projection rib 124 located on the right side of the electrode channel 121 cooperate, thereby positioning the bottom plate 12 on the inner surface of the panel 111.

[0112] The method for forming the first engagement groove 116 may be as shown in Figure 2. On the inner surface of the panel 111, the third projection rib 114 and the fourth projection rib 115 can be arranged along the longitudinal direction of the panel 111. An engagement groove is formed between the third projection rib 114 and the fourth projection rib 115, which is referred to as the first engagement groove 116 and constitutes the first engagement structure.

[0113] Since two first engagement grooves 116 are provided, two third projection ribs 114 and two fourth projection ribs 115 are also provided. As shown in Figure 10, one first engagement groove 116 is formed between the third projection rib 114 and the fourth projection rib 115 located on the left side of the rail opening 113, and the other first engagement groove 116 is formed between the third projection rib 114 and the fourth projection rib 115 located on the right side of the rail opening 113.

[0114] As shown in Figure 10, the second projection rib 124 located on the left side of the electrode channel 121 engages with the first engagement groove 116 formed between the third projection rib 114 and the fourth projection rib 115 located on the left side of the rail opening 113, and the second projection rib 124 located on the right side of the electrode channel 121 engages with the first engagement groove 116 formed between the third projection rib 114 and the fourth projection rib 115 located on the right side of the rail opening 113, thereby achieving a fixed connection between the cover 11 and the bottom plate 12.

[0115] In another example, the connection structure that securely connects the cover 11 and the bottom plate 12 may include not only the first engagement groove 116 and the second projection rib 124, but also screws, as shown in Figure 10.

[0116] In this way, the cover 11 and the bottom plate 12 are first temporarily positioned or pre-assembled by the cooperation of the first engagement groove 116 and the second projection rib 124, and then fastened together with screws.

[0117] In one example, as shown in Figure 10, the screw may be connected between the third projection rib 114 and the fourth projection rib 115, for example, the first engagement groove 116 and the second projection rib 124 may be fastened together by a screw.

[0118] For example, the second projection rib 124 may have multiple mounting holes along its longitudinal direction, and as shown in Figure 10, multiple screws may each pass through the multiple mounting holes in the second projection rib 124 and be attached to the first engagement groove 116, where the mounting holes may be unthreaded holes.

[0119] As an example, a screw can be positioned in the first engagement groove 116 by press-fitting.

[0120] As another example, the screw may be screwed into the first engagement groove 116, for example, the first engagement groove 116 may have a plurality of screw holes along its longitudinal direction, and the screw may pass through the mounting hole in the second projection rib 124 and be screwed into the screw hole in the first engagement groove 116.

[0121] In one example, the power rail is mounted on a wall, and for instance, the wiring box for the power rail covers the wall-mounted power supply to facilitate wiring.

[0122] To increase the flexibility of mounting the power rail, the enclosure 1 can appropriately have a wiring channel. In this way, the wiring between the wiring box and the wall power supply can be placed in the wiring channel. As a result, when mounting the power rail, the wiring box of the power rail does not need to cover the wall power supply directly above it, and consequently the flexibility of mounting the power rail can be increased.

[0123] To form a wiring channel within the enclosure, the cover 11 further includes a side plate 112, as shown in Figure 10, the side plate 112 is located on the side along the width direction of the panel 111, and a wiring channel 117 is formed between the side plate 112 and the connection structure between the cover 11 and the bottom plate 12. For example, the wiring channel 117 is formed between the side plate 112 and the first surface.

[0124] Here, the first surface is the surface furthest from the electrode channel 121 among the surface of the first engagement groove 116 and the surface of the second projection rib 124.

[0125] For example, as shown in Figure 10, a wiring channel 117 is formed between the side plate 112 and the surface of the first engagement groove 116 away from the electrode channel 121, that is, a wiring channel 117 is formed between the side plate 112 and the surface of the fourth protruding rib 115 away from the electrode channel 121.

[0126] In one example, one wiring channel 117 is provided, and accordingly, one side plate 112 is provided. In another example, two wiring channels 117 are provided, and as shown in Figure 10, two side plates 112 are provided, with the two side plates 112 located on both sides along the width direction of the panel 111. In this way, one wiring channel 117 is formed between one side plate 112 and the fourth projection rib 115, and the other wiring channel 117 is formed between the other side plate and the fourth projection rib 115.

[0127] In one example, to mount the power rail to a wall, the housing 1 further includes a back plate 13, as shown in Figure 10, which covers the outer surface of the bottom plate 12 and is fitted into the connection port between the cover 11 and the bottom plate 12, for example, to a first surface. Here, the first surface is the same surface as the first surface mentioned above, that is, the first surface is the surface furthest from the electrode channel 121 among the surface of the first engagement groove 116 and the surface of the second projection rib 124.

[0128] For example, the first surface is the surface of the first engagement groove 116 that is away from the electrode channel 121, and for example, the first surface is the surface of the fourth projection rib 115 that faces away from the electrode channel 121.

[0129] For example, the surface of the fourth projection rib 115 facing away from the electrode channel 121 may have a projection structure, and the inner surface of the side wall of the back plate 13 may have a projection structure. In this way, the fitting of the projection structure of the fourth projection rib 115 and the projection structure of the back plate 13 achieves a fixed connection between the back plate 13 and the cover 11.

[0130] As shown in Figure 10, the back plate 13 is U-shaped, and may specifically be a U-shaped structure whose length is matched to the length of the cover 11. Alternatively, the length of the back plate 13 may be much shorter than the length of the cover 11, and there may be multiple back plates 13, for example, two or three, or more, and these back plates 13 may be arranged along the longitudinal direction of the cover 11.

[0131] In this way, the backplate 13 can be fixed to the wall, and the assembled housing 1 is fitted onto the backplate 13, thereby mounting the power rail to the wall and forming a wiring channel 117 between the side wall of the backplate 13 and the side wall of the cover 11.

[0132] As described above, the power rail further includes a protective door 2, so that mounting cavities 11-12 for mounting the protective door can be formed between the panel 111, electrode channel 121 and bottom plate 12, as shown in Figure 2.

[0133] As shown in Figure 10, the first projection rib 123 described above is located within the mounting cavity 11-12, and the door base 21 engages with the second engagement groove 125 between the first projection rib 123 and the second projection rib 124.

[0134] To facilitate the installation of the protective door 2, as shown in Figure 10, the first projection rib 123 may include an upright portion and an inclined portion, where the upright portion is directly located on the inner surface of the base plate 12, and the inclined portion is away from the inner surface of the base plate 12, and the inclined portion is inclined toward the position of the electrode channel 121, and the angle it makes with the upright portion is obtuse. In this way, the inclined portion functions as a guide structure for installing the protective door, facilitating the positioning of the first projection rib 123 between the two side walls of the door base 21, or in other words, facilitating the positioning of the door base 21 in the second engagement groove 125 between the second projection rib 124 and the first projection rib 123, thereby increasing the installation efficiency of the protective door.

[0135] In one example, the power rail housing is not a single-piece molded structure but a segmented structure. With such a segmented housing, the protective door can first be attached to the cover or bottom plate, and then the cover and bottom plate can be fixed together. In this way, it is not necessary to insert the protective door from one end along the longitudinal direction of the housing and gradually push it into the housing, thereby improving the efficiency of the protective door installation. Furthermore, this method of installing the protective door can be operated by a robotic arm, which is advantageous for realizing automated installation and further improves installation efficiency.

[0136] Furthermore, if the power rail is used for a long period of time, its protective door may be damaged and its sealing ability may decrease. However, since the housing 1 has a split structure, its cover 11 and bottom plate 12 can be disassembled, and the user can disassemble the cover 11 and bottom plate 12 to replace the protective door, thereby extending the service life of the power rail.

[0137] Furthermore, the power rail enclosure has a segmented structure. In the case of such a segmented enclosure, if the structure of the internal components is changed, in most cases only the cover needs to be adjusted and the bottom plate can be reused, or only the bottom plate needs to be adjusted and the cover can be reused. This saves on enclosure materials and costs, and also reduces the amount of work required to adjust the enclosure.

[0138] For example, if the structure of a component installed inside the housing 1 is changed, it is not necessarily required to change the entire housing 1. For instance, if the structure of a component installed in the electrode channel 121 (e.g., an insulating bracket) is changed, the structure of the bottom plate 12 on which the electrode channel 121 is located can be adaptively adjusted, eliminating the need to adjust the cover 11, and thus the cover 11 can still be used. Similarly, if the structure of a component installed inside the cover 11 (e.g., a protective door) is changed, the structure of the cover 11 can be adaptively adjusted, eliminating the need to adjust the bottom plate 12, and thus the bottom plate 12 can still be used.

[0139] This means that by adopting a segmented enclosure structure, it is possible to save on enclosure materials and costs, as well as reduce the amount of work required to adjust the enclosure.

[0140] Furthermore, when changing the power rail model, only the structure of the cover or the base plate needs to be adjusted, resulting in high compatibility between the cover and the base plate, which is advantageous for achieving mass production. For example, it is possible to mass-produce the cover or the base plate.

[0141] In this embodiment, the power rail of the rail socket includes a protective door. When the adapter is not inserted into the rail opening, the door plate of the protective door shields and seals the rail opening. When the adapter is inserted into the rail opening, the adapter applies force to the door plate, pushing it to one side of the rail opening. The door plate no longer shields the rail opening, allowing the adapter to contact the conductive plate in the electrode channel. When the adapter is pulled out of the rail opening, the reset spring springs back, pushing the door plate back into a position that shields the rail opening. Furthermore, the shielding of the rail opening by the protective door improves the safety of the power rail and extends its service life by providing waterproof and dustproof functionality.

[0142] Furthermore, the protective door includes a door base and a door plate, and the material of the door base and door plate is plastic. Compared to protective doors made entirely of metal, such a protective door allows the user to insert the adapter into the power rail and remove the adapter from the power rail with less force, resulting in smoother insertion and removal of the adapter, and also improving the user experience by eliminating metallic friction noise during insertion and removal of the adapter.

[0143] Compared to protective doors made entirely of rubber, these plastic doors are relatively hard, less prone to deformation, have excellent aging resistance, are less susceptible to the effects of oil fumes and salt, and are more durable, further extending the service life of power rails and improving the user experience to some extent.

[0144] Furthermore, the power rail housing is not a single-piece molded structure but a segmented structure. This segmented housing structure improves the efficiency of installing the protective door, and the installation of the protective door can be operated by a robotic arm, which is advantageous for realizing automated installation and further improves installation efficiency.

[0145] In the case of a partitioned enclosure, if the structure of the internal components of the enclosure is changed, in most cases only the cover needs to be adjusted and the bottom plate can continue to be used, or only the bottom plate needs to be adjusted and the cover can continue to be used. This saves enclosure materials and costs, reduces the amount of work required to adjust the enclosure, and is also advantageous for mass production of covers and bottom plates.

[0146] The above is advantageous in reducing the processing costs of power rails and increasing competitiveness in the power rail industry.

[0147] Furthermore, adopting a modular enclosure structure makes it easier for users to replace protective doors and extends the lifespan of the power rails.

[0148] The examples described above are merely selectable embodiments of the present application and do not limit it. Any modifications, equivalent substitutions, improvements, etc., made within the scope of the principles of the present application are all included within the scope of protection of the present application. [Explanation of Symbols]

[0149] 1…Housing, 11…Cover, 111…Panel, 112…Side plate, 113…Rail opening, 114…Third projection rib, 115…Fourth projection rib, 116…First engagement groove, 117…Wiring channel, 12…Bottom plate, 121…Electrode channel, 122…Relief opening, 123…First projection rib, 124…Second projection rib, 125…Second engagement groove, 11-12…Mounting cavity, 13…Back plate 2...Protective door, 21...Door base, 210...Limit cavity, 211...First limit structure, 212...Spring post, 213...Separation rib, 22...Door plate, 220...Limit convex block, 221...Second limit structure, 222...Spring groove, 223...Counterbore groove, 224...Limit rib, 225...Horizontal section, 226...Inclined section, 23...Reset spring.

Claims

1. A protective door (2), the protective door (2) includes a door base (21), a door plate (22), and a reset spring (23), The door base (21) has a first limit structure (211), and the door plate (22) has a second limit structure (221). The door plate (22) is fitted onto the door base (21) by the cooperation of the first limit structure (211) and the second limit structure (221), and the door plate (22) is movable relative to the door base (21). The reset spring (23) is located between the door base (21) and the door plate (22), and the direction of extension and contraction of the reset spring (23) is parallel to the direction of movement of the door plate (22). A protective door (2) characterized by the following.

2. The first surface of the door base (21) has a limit cavity (210), and the first limit structure (211) is located on the cavity wall of the limit cavity (210). The first end face of the door plate (22) has a limit convex block (220), and the second limit structure (221) is located on the side wall of the limit convex block (220). The end of the limit convex block (220) is inserted into the limit cavity (210), and the first limit structure (211) and the second limit structure (221) cooperate. The protective door (2) according to feature 1.

3. A spring post (212) is located on the first surface of the door base (21) and within the limit cavity (210), one end of the reset spring (23) is fitted outside the spring post (212), and the other end abuts against the end face of the limit convex block (220). The protective door (2) according to feature 2.

4. The limit convex block (220) has a spring groove (222) in which the notch faces the door base (21), and the end of the reset spring (23) abuts against the bottom of the spring groove (222). The protective door (2) according to feature 2.

5. The protective door (2) according to claim 2, characterized in that the first end face of the door plate (22) has a counterbore groove (223) toward the door base (21), and the limit convex block (220) is located at the bottom of the counterbore groove (223).

6. The door base (21) is elongated, and a plurality of limit cavities (210) are provided, and the plurality of limit cavities (210) are arranged sequentially along the longitudinal direction of the door base (21). Multiple door plates (22) and reset springs (23) are provided, and the end of the limit convex block (220) of each door plate (22) is inserted into one of the limit cavities (210), and each reset spring (23) is located between the door base (21) and one door plate (22). The protective door (2) according to feature 2.

7. On the first surface of the door base (21), there are a plurality of separation ribs (213) along the longitudinal direction, and between two adjacent limit cavities (210), The protective door (2) according to feature 6.

8. On the lower surface of the door plate (22), there is a limit rib (224) at a position close to the door base (21), and the lower surface of the door sheet (22) is the surface facing the electrode channel (121) of the power rail to which it belongs. When the protective door (2) obstructs the rail opening (113) of the power rail, the limit rib (224) comes into contact with or very close to the side wall of the electrode channel (121). The protective door (2) according to feature 1.

9. One of the first limit structure (211) and the second limit structure (221) is a strip-shaped groove or strip-shaped opening, and the other is a projection structure, wherein the longitudinal direction of the strip-shaped groove or strip-shaped opening is parallel to the direction of movement of the door plate (22). A protective door (2) according to any one of claims 1 to 8.

10. A power rail, the power rail comprising a housing (1) and a protective door (2) according to any one of claims 1 to 9, The housing (1) includes a cover (11) and a bottom plate (12), the panel (111) of the cover (11) has a rail opening (113), the bottom plate (12) has an electrode channel (121), the cover (11) and the bottom plate (12) are detachably connected by a connecting structure, the rail opening (113) and the electrode channel (121) face each other, The protective door (2) is interposed between the cover (11) and the bottom plate (12), the door base (21) is attached to the bottom plate (12), and the door plate (22) is movably positioned between the panel (111) and the electrode channel (121). When the door plate (22) moves to the side of the rail opening (113), the rail opening (113) and the electrode channel (121) communicate, and when the door plate (22) moves to a position that shields the rail opening (113), the rail opening (113) and the electrode channel (121) cease to communicate. A power rail characterized by the following features.

11. When the adapter is inserted into the power rail, the n door plates (22) move to the side of the rail opening (113), and when the adapter is withdrawn from the power rail, the n door plates (22) move to a position that obstructs the rail opening (113) by the connected reset spring (23), where n is a positive integer. The power rail according to feature 10.

12. The connection structure includes a first engagement structure and a second engagement structure. The first engagement structure is located on the inner surface of the panel (111) and distributed along the longitudinal direction of the panel (111), and the second engagement structure is located on the inner surface of the bottom plate (12) and distributed along the longitudinal direction of the bottom plate (12), and the first engagement structure and the second engagement structure cooperate with each other. The power rail according to feature 10.

13. The aforementioned connection structure further includes a screw, The first engagement structure and the second engagement structure are connected by the screw. The power rail according to feature 12.

14. The cover (11) further includes a side plate (112), and a wiring channel (117) is formed between the side plate (112) and the connecting structure, wherein the side plate (112) is located on the side of the panel (111) along the width direction. The power rail according to feature 12.

15. The power rail according to claim 12, wherein the housing (1) further includes a back plate (13), the back plate (13) covers the outer surface of the bottom plate (12) and is fitted into the connection structure.

16. One of the first engagement structure and the second engagement structure is an engagement groove, and the other is a projection rib. The first engagement structure and the second engagement structure cooperate by engaging with the engagement groove via the protruding rib. The power rail according to feature 12.

17. When the bottom plate (12) and the panel (111) are fixed together, there is a gap between the top wall of the electrode channel (121) and the panel (111). A power rail according to any one of claims 10 to 16.

18. A mounting cavity (11-12) for attaching a protective door is formed between the panel (111), the electrode channel (121), and the bottom plate (12). The power rail according to feature 17.

19. On the inner surface of the bottom plate (12) and within the mounting cavity (11-12), there is a third projection rib (123) for securing the protective door (2). The third projection rib (123) includes an upright portion and an inclined portion, the inclined portion being away from the inner surface of the bottom plate (12) and inclined toward the position of the electrode channel (121), and the angle it makes with the upright portion is obtuse. The power rail according to feature 18.

20. A rail socket comprising an adapter and a power rail according to any one of claims 10 to 19, wherein the adapter is removably connected to the power rail.

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