WO2021082503A1

WO2021082503A1 - Plug protection sleeve, plug structure, and electrical device

Info

Publication number: WO2021082503A1
Application number: PCT/CN2020/099751
Authority: WO
Inventors: 潘海波
Original assignee: 公牛集团股份有限公司
Priority date: 2019-10-29
Filing date: 2020-07-01
Publication date: 2021-05-06
Also published as: CN110690605A

Abstract

Disclosed are a plug protection sleeve, a plug structure, and an electrical device. The plug protection sleeve comprises: a shell, comprising an L-pole jack for allowing an L-pole plug pin of a plug to pass through same and an N-pole jack for allowing an N-pole plug pin of the plug to pass through same; a surge protector arranged in the shell; a first conductive part arranged in the shell, wherein the first conductive part is positioned on one side of the L-pole jack, the first conductive part is electrically connected to the surge protector, and the first conductive part is configured to be in contact with the L-pole plug pin after the L-pole plug pin passes through the L-pole jack; and a second conductive part arranged in the shell, wherein the second conductive part is positioned on one side of the N-pole jack, the second conductive part is electrically connected to the surge protector, and the second conductive part is configured to be in contact with the N-pole plug pin after the N-pole plug pin passes through the N-pole jack.

Description

Plug protective sleeve, plug structure and electrical equipment

This application claims the priority of the Chinese patent application with application number 201911037403.2 filed on October 29, 2019, the entire content of which is incorporated into this application by reference.

Technical field

The present disclosure relates to the technical field of electrical equipment, and in particular to a plug protective sleeve, a plug structure and electrical equipment.

Background technique

There are many electronic components integrated in electrical equipment. When a spike current or spike voltage is suddenly generated in the electrical circuit due to external interference, it will have a strong impact on the electrical equipment, which will cause irreparable damage to the electrical equipment. Surge protectors need to be installed to protect electrical equipment. The surge protector can conduct and shunt in a very short time, so as to avoid the damage of the surge to the electrical equipment. The surge is the peak current or peak voltage.

Generally speaking, a surge protector can be set inside an electrical device to realize the anti-surge function of the electrical device. The electrical device includes an electrical appliance and a socket for supplying power to the electrical appliance. Alternatively, a surge protector can be separately plugged into the socket for supplying power to the electrical appliance to realize the anti-surge function of the electrical equipment.

Summary of the invention

In one aspect, some embodiments of the present disclosure provide a plug protective cover. The plug protective sleeve includes a housing, a surge protector, a first conductive member and a second conductive member. The housing includes an L-pole socket through which the L-pole plug of the plug passes and an N-pole socket through which the N-pole plug of the plug passes. The first conductive member is located on one side of the L-pole socket, the first conductive member is electrically connected to the surge protector, and the first conductive member is configured to pass through the L-pole plug The L-pole socket is in contact with the L-pole plug. The second conductive member is located on one side of the N-pole socket, the second conductive member is electrically connected to the surge protector, and the second conductive member is configured to pass through the N-pole plug The N-pole socket is in contact with the N-pole plug.

In some embodiments, the plug is a three-plug plug, and the housing further includes a ground pole socket for the ground pole pin of the three-plug plug to pass through.

In some embodiments, the housing includes: a lower cover; the L pole jack, the N pole jack, and the ground pole jack are all provided on the lower cover; the upper cover, the upper The cover and the lower cover cover each other to form a receiving cavity for receiving the plug.

In some embodiments, the plug is a two-plug plug, and the housing includes: a lower cover; an upper cover, the upper cover and the lower cover have the same structure, and the upper cover and the lower cover cover each other A accommodating cavity for accommodating the plug is formed, a part of the L-pole socket is provided on the lower cover, and another part of the L-pole socket is provided on the upper cover; the N-pole A part of the jack is provided on the lower cover, and another part of the N-pole jack is provided on the upper cover.

In some embodiments, when the upper cover is closed on the lower cover, the plug is compressed between the upper cover and the lower cover.

In some embodiments, the first conductive member includes a first upper conductive sheet fixed on the upper cover and a first lower conductive sheet fixed on the lower cover. The first upper conductive sheet is electrically connected to the surge protector; the first lower conductive sheet is arranged on one side of the L-pole socket and is configured to pass through the L-pole plug After the pole insertion hole is in contact with the L pole plug; wherein, the first upper conductive sheet and the first lower conductive sheet are inserted into each other.

In some embodiments, the second conductive member includes a second upper conductive sheet fixed on the upper cover and a second lower conductive sheet fixed on the lower cover. The second upper conductive sheet is electrically connected with the surge protector. The second lower conductive sheet is disposed on one side of the N-pole socket, and is configured to contact the N-pole plug after the N-pole plug passes through the N-pole socket; wherein, the first The two upper conductive sheets and the second lower conductive sheet are connected to each other.

In some embodiments, the first lower conductive sheet is in elastic contact with the L pole plug.

In some embodiments, the first lower conductive sheet includes a first plug-in arm and a first elastic arm. The first plug-in arm is connected with the lower cover and plugged with the first upper conductive sheet. The first end of the first elastic arm is connected to the first plug-in arm, and the second end of the first elastic arm is configured to be connected to the socket after the L-pole plug passes through the L-pole socket. The L pole pin is in elastic contact.

In some embodiments, the insertion structure of the first lower conductive sheet and the first upper conductive sheet includes a socket provided on the first upper conductive sheet, and the first socket arm is inserted into the socket Inside.

In some embodiments, the second lower conductive sheet is in elastic contact with the N-pole plug.

In some embodiments, the second lower conductive sheet includes a second plug arm and a second elastic arm. The second plug-in arm is clamped with the lower cover and plugged with the second upper conductive sheet. The first end of the second elastic arm is connected to the second plug-in arm, and the second end of the second elastic arm is configured to be connected to the socket after the N-pole plug passes through the N-pole socket. The N-pole plug is in elastic contact.

In some embodiments, the plug-in structure of the second lower conductive sheet and the second upper conductive sheet includes a socket provided on the second upper conductive sheet, and the second plug arm is inserted into the socket Inside.

In some embodiments, the first conductive member includes a first spring fixed on the upper cover, a first end of the first spring is connected to the surge protector, and a second end of the first spring is connected to the surge protector. The end is configured to elastically contact the L-pole plug after the L-pole plug passes through the L-pole insertion hole.

In some embodiments, the second conductive member includes a second spring fixed on the upper cover, the first end of the second spring is connected to the surge protector, and the second spring of the second spring is connected to the surge protector. The end is configured to elastically contact the N-pole plug after the N-pole plug passes through the N-pole socket.

In some embodiments, the upper cover includes a bottom wall and side walls extending from the bottom wall, the lower cover includes a bottom wall and side walls extending from the bottom wall; the side of the lower cover The contact surface between the wall and the side wall of the upper cover is curved or flat.

In some embodiments, the side wall of the upper cover is provided with elastic claws, the side wall of the lower cover is provided with a card slot, and after the upper cover is buckled with the lower cover, the elastic clip The claws fit into the slot.

In some embodiments, the upper cover includes a bottom wall and side walls extending from the bottom wall, and the lower cover includes a bottom wall and side walls extending from the bottom wall.

In some embodiments, the outer sides of the two opposite side walls of the upper cover are respectively provided with clamping grooves and claws, and the outer sides of the opposite two side walls of the lower cover are respectively provided with clamping grooves and claws. After the upper cover is buckled with the lower cover, the claws on the upper cover are engaged with the grooves on the lower cover, and the claws on the upper cover cooperate with the claws on the lower cover Card access.

In some embodiments, the side wall of the lower cover has a first concave portion and two opposite first convex portions, and the first concave portion is located between the two opposite first convex portions; the upper cover The side wall has two opposite second concave portions and a second convex portion, the second convex portion is located between the two opposite second concave portions; when the upper cover and the lower cover are closed, the The first concave portion is matched with the second convex portion, and the first convex portion is matched with the corresponding second concave portion.

In some embodiments, the plug includes a main body part and a wiring part extending from the main body part and used for connecting with wires. The L pole plug, the N pole plug, and the ground pole plug are fixed to the main body. The main body portion; the upper cover and the lower cover cover to form a receiving cavity for receiving the main body and a through hole communicating with the receiving cavity, and the wiring portion extends from the through hole Plug protector.

In some embodiments, the through hole is formed in the side wall of the upper cover and the side wall of the lower cover, and is located on one side of the central axis of the plug protective sleeve, and the first recess is connected to the side wall of the lower cover. The second convex portion is located on the other opposite side of the central axis; the central axis refers to an axis passing through the center of the bottom wall of the upper cover, or an axis passing through the center of the bottom wall of the lower cover.

In some embodiments, the plug protective sleeve further includes a pressure plate, and the pressure plate includes through holes corresponding to the L pole, N pole, and ground pole pins of the plug; In the plug protective sleeve, the L-pole, N-pole, and ground-pole pins of the plug correspondingly pass through the through hole on the pressure plate and the L-pole socket, N-pole socket, and Ground pole jack; and, the pressure plate abuts against the first conductive member and the second conductive member to ensure that the first conductive member contacts the L pole pin of the plug, and the second conductive member The piece is in contact with the N-pole pin of the plug.

In some embodiments, the plug protective sleeve further includes an indicator light located in the housing, the indicator light is electrically connected to the first conductive member and the second conductive member; and the indicator light is configured to accompany The surge protector is damaged and damaged by the surge voltage caused by the plug.

In some embodiments, the upper cover includes a notch corresponding to the indicator light, so that the light generated by the indicator light can pass through the notch.

On the other hand, some embodiments of the present disclosure provide a plug structure. The plug structure includes a plug and the plug protective sleeve as described in any of the above embodiments. The plug includes an L pole plug and an N pole plug. The L-pole plug passes through the L-pole socket and is in contact with the first conductive element; the N-pole plug passes through the N-pole socket and is in contact with the second conductive element;

In some embodiments, the plug further includes a ground pole plug, and the plug protective sleeve further includes a ground pole socket, and the ground pole plug passes through the ground pole socket.

In another aspect, some embodiments of the present disclosure provide an electrical device including the plug structure as described in the above-mentioned embodiments.

Description of the drawings

In order to explain the technical solutions of the present disclosure more clearly, the following will briefly introduce the drawings that need to be used in some embodiments of the present disclosure. Obviously, the drawings in the following description are merely appendices to some embodiments of the present disclosure. Figures, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings. In addition, the drawings in the following description can be regarded as schematic diagrams, and are not limitations on the actual size of the product, the actual process of the method, and the actual timing of the signal involved in the embodiments of the present disclosure.

FIG. 1 is a schematic diagram of a three-dimensional structure of a plug structure according to some embodiments of the present disclosure;

Figure 2 is an exploded view of a three-dimensional structure of a plug structure according to some embodiments of the present disclosure;

3 is a schematic diagram of a three-dimensional structure of a plug protective sleeve according to some embodiments of the present disclosure;

4 is an exploded view of the three-dimensional structure of the plug protective sleeve according to some embodiments of the present disclosure;

Figure 5 is a three-dimensional structural view of a partial structure of a plug protective sleeve according to some embodiments of the present disclosure;

Fig. 6 is a schematic structural diagram of a part of the structure of a plug protective sleeve according to some embodiments of the present disclosure;

Fig. 7 is a schematic structural diagram of a lower cover according to some embodiments of the present disclosure;

Fig. 8 is a schematic structural diagram of an upper cover according to some embodiments of the present disclosure;

Figure 9 is a three-dimensional schematic diagram of a plug structure according to some embodiments of the present disclosure;

FIG. 10 is a three-dimensional structural diagram of a plug structure according to some embodiments of the present disclosure;

Fig. 11 is a three-dimensional structural diagram of a plug protective sleeve according to some embodiments of the present disclosure.

Detailed ways

The technical solutions in some embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments provided in the present disclosure, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of the present disclosure. Hereinafter, the terms “first” and “second” are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

Electrical equipment is integrated with many electronic components to form a corresponding electrical circuit. When a spike current or spike voltage is suddenly generated in the electrical circuit due to external interference, the spike current or spike voltage will have a strong impact on the electrical equipment. This will cause irreparable damage to electrical equipment. Since the surge protector can conduct and shunt in a very short time, so as to avoid the damage of the surge to the electrical equipment, therefore, the surge protector can be installed inside the electrical equipment, or the surge protector can be plugged into the socket outside the electrical equipment Surge protector to protect electrical equipment. When the surge protector is installed inside the electrical equipment, if it is necessary to replace a surge protector with higher surge protection capability, or if the surge protector is damaged, the surge protector needs to be replaced, and the entire electrical equipment needs to be disassembled. The replacement of a surge protector is complicated and inconvenient for the replacement and upgrade of the surge protector; if the surge protector is plugged into the socket separately, it will inevitably occupy the socket of the socket, and it is easy to cause insufficient socket sockets or sockets. The pick-up space is crowded.

Referring to FIG. 9, some embodiments of the present disclosure provide a plug structure 3 including a plug 1 and a plug protective cover 2. The plug 1 includes an L pole plug 11 and an N pole plug 12. "L" refers to the live wire, and "N" refers to the zero wire.

1 and 2, in some embodiments of the present disclosure, the plug 1 in the plug structure 3 further includes a ground pole pin 13, and the ground pole pin 13 can be directly grounded. This embodiment can improve the safety of the plug 1.

When the plug 1 is a three-plug plug implementation, that is, when the plug 1 includes an L pole plug 11, an N pole plug 12 and a ground pole plug 13, referring to Figures 1 to 6, the plug protective sleeve 2 includes: a housing 20 , The surge protector 21 provided in the housing 20, the first conductive member 22 provided in the housing 20, and the second conductive member 23 provided in the housing 20. The housing 20 includes an L pole jack 201 through which the L pole pin 11 of the plug 1 passes, an N pole jack 202 through which the N pole pin 12 of the plug 1 passes, and a ground through which the ground pole pin 13 of the plug 1 passes.极Jack 203. The first conductive member 22 is electrically connected to the surge protector 21. The first conductive element 22 is located on the side of the L-pole insertion hole 201, and the first conductive element 22 contacts the L-pole insertion pin 11 when the L-pole insertion pin 11 passes through the L-pole insertion hole 201. The second conductive member 23 is electrically connected to the surge protector 21. The second conductive element 23 is located on the side of the N-pole socket 202, and the second conductive element 23 contacts the N-pole plug 12 when the N-pole plug 12 passes through the N-pole socket 202.

In some embodiments of the present disclosure, the plug 1 is a three-pin plug of the national standard (ie, the Chinese standard), and the L-pole jack 201, the N-pole jack 202, and the ground pole jack 203 form the three-pin jack of the national standard. When the plug 1 and the plug protective sleeve 2 are assembled, the L-pole plug 11 of the plug 1 passes through the L-pole socket 201 and contacts the first conductive member 22, and the N-pole plug 12 of the plug 1 passes through the N-pole socket 202 and connects with The second conductive member 23 contacts, and the ground pole pin 13 of the plug 1 passes through the ground pole socket 203, so that the surge protector 21 is connected to the L pole pin 11 and the N pole pin through the first conductive member 22 and the second conductive member 23, respectively. 12 Electrical connection. When the plug 1 has a surge voltage, the surge protector 21 protects the electrical equipment connected to the plug 1 to prevent the electrical equipment from being damaged by the surge voltage. It should be noted that the plug 1 can also be a three-plug plug such as the American standard and the Australian standard, and the jack on the plug protective sleeve 2 is adapted to the plug of the plug 1.

In some embodiments of the present disclosure, when the plug protective sleeve 2 is used in conjunction with the plug 1, only the L pole pin 11, the N pole pin 12, and the ground pole pin 13 on the plug 1 are correspondingly passed through the L pole of the plug protective sleeve 2. The jack 201, the N pole jack 202, and the ground pole jack 203 make the L pole pin 11 of the plug 1 contact the first conductive member 22, the N pole pin 12 of the plug 1 contacts the second conductive member 23, and the plug protection sleeve 2. The electrical equipment connected to the plug 1 can be protected by the surge protector 21 to prevent damage to the electrical equipment.

When the surge protector 21 in the plug protective sleeve 2 is damaged and the surge protector 21 needs to be replaced, just remove the plug protective sleeve 2 from the plug 1, and assemble the new plug protective sleeve 2 with the plug 1. The replacement of the surge protector 21 is realized. The surge protector 21 is simple and convenient to replace. When it is necessary to replace the surge protector 21 with higher surge protection capability, it is also only necessary to remove the plug protective cover 2 from the plug 1, and protect the plug of the surge protector 21 with higher surge protection capability. The sleeve 2 is assembled on the plug 1 to realize the upgrade of the surge protector 21, so that the upgrade of the surge protector 21 is simple and convenient. In addition, some embodiments of the present disclosure do not need to plug the surge protector separately into the socket, and the surge protector does not need to occupy the socket of the socket, which avoids the problem of insufficient socket sockets or crowded socket insertion space. The replacement and upgrade of the surge protector are simple and convenient, and there is no need to separately occupy the socket of the socket, which can improve the utilization rate of the socket.

2, 3 and 5, in some embodiments of the present disclosure, the housing 20 includes a lower cover 204 and an upper cover 205, the upper cover 205 and the lower cover 204 cover each other to form a receiving cavity 206 for receiving the plug 1 . The lower cover 204 includes an L pole jack 201, an N pole jack 202 and a ground pole jack 203. The plug 1 is protected by the accommodating cavity 206, which improves the safety performance of the plug 1 during use, and can play the role of dustproof and waterproof, and ensures the stable conduction between the plug 1 and the socket.

In some embodiments of the present disclosure, when the upper cover 205 is closed on the lower cover 204, the upper cover 205 presses the plug 1 on the lower cover 204. Through the mutual cooperation of the lower cover 204 and the upper cover 205, the upper cover 205 directly or indirectly abuts against the plug 1, so that the upper cover 205 presses the plug 1 against the lower cover 204 to prevent the plug 1 from loosening and make the L pole pin of the plug 1 11 is in stable contact with the first conductive member 22, and the N-pole plug 12 of the plug 1 is in stable contact with the second conductive member 23, thereby improving the reliability of the anti-surge function.

2 and 5, in some embodiments of the present disclosure, the lower cover 204 includes a bottom wall 2043 and a side wall 2044 extending from the bottom wall 2043, an L pole jack 201, an N pole jack 202, and a ground pole insert The holes 203 are all provided on the bottom wall 2043. When the plug protective cover 2 is assembled with the plug 1, the L pole plug 11, the N pole plug 12 and the ground pole plug 13 of the plug 1 respectively pass through the L pole jack 201, the N pole jack 202 and the ground on the bottom wall 2043.极Jack 203. It should be noted that the embodiment of the present disclosure does not limit the shape of the plug protective sleeve 2. For example, as shown in FIG. 5, the shape of the plug protective cover 2 is approximately cylindrical, and the bottom wall 2043 of the lower cover 204 has a substantially circular shape at this time. However, in some embodiments of the present disclosure, the shape of the plug protective sleeve 2 may also be a prismatic shape. In this case, the bottom wall 2043 of the lower cover 204 basically has a polygonal shape, such as a regular hexagon. Generally speaking, in order to make the user feel better in grasping the plug when inserting and pulling out the plug, and the operation is more convenient, the plug protective cover can be set in the shape of a regular hexagonal prism.

Similarly, as shown in FIG. 2, in some embodiments of the present disclosure, the upper cover 205 includes a bottom wall 2053 and a side wall 2054 extending from the bottom wall 2053. The side wall 2054 of the upper cover 205 and the side wall 2044 of the lower cover 204 are buckled together. It should be noted that the embodiment of the present disclosure does not limit the shape of the plug protective sleeve 2. For example, as shown in FIG. 4, the shape of the plug protective cover 2 is approximately cylindrical, and the bottom wall 2053 of the upper cover 205 has a substantially circular shape at this time. However, in some embodiments of the present disclosure, the shape of the plug protective sleeve 2 may also be a prismatic shape. In this case, the bottom wall 2053 of the upper cover 205 basically has a polygonal shape, such as a regular hexagon.

7 and 8, the side wall 2054 of the upper cover 205 is provided with elastic claws 2056, and the side wall 2044 of the lower cover 204 is provided with a clamping slot 2045. After the upper cover 205 and the lower cover 204 are buckled, the elastic claws The 2056 fits into the card slot 2054. By arranging the upper cover 205 and the lower cover 204 in a snap connection with each other, the assembly of the upper cover 205 and the lower cover 204 is facilitated, and the upper cover 205 and the lower cover 204 are assembled more firmly.

Continuing to refer to FIGS. 7 and 8, in some embodiments, the numbers of the elastic claws 2056 and the grooves 2045 are both two, and the two elastic claws 2056 are arranged symmetrically with respect to the center line of the upper cover 205, thus, The clamping connection between the upper cover 205 and the lower cover 204 is more reliable. It should be noted that the number of elastic claws 2056 and clamping slots 2045 can be one or more, and can be set as required.

3 and 4, in some embodiments of the present disclosure, the contact surface between the side wall 2044 of the lower cover 204 and the side wall 2054 of the upper cover 205 may be a curved surface. For example, the side wall 2044 of the lower cover 204 has a first concave portion 2041 and two opposite first convex portions 2042, and the first concave portion 2041 is located between the two opposite first convex portions 2042. The side wall 2054 of the upper cover 205 has two opposite second concave portions 2051 and a second convex portion 2052, and the second convex portion 2052 is located between the two opposite second concave portions 2051. When the upper cover 205 is closed with the lower cover 204, the first concave portion 2041 is matched with the second convex portion 2052, and the first convex portion 2042 is matched with the corresponding second concave portion 2051. But it is not limited to this. In some embodiments of the present disclosure, the contact surface between the lower cover 204 and the upper cover 205 may be a plane parallel to the bottom wall 2043 of the lower cover 204. If the contact surface between the lower cover 204 and the upper cover 205 is flat, the processing is more convenient.

Referring to FIG. 3, in some embodiments of the present disclosure, the upper cover 205 and the lower cover 204 cover each other to form a through hole 27, and the through hole 27 communicates with the receiving cavity 206. The plug 1 includes a main body portion 14 and a connection portion 15 formed by extending the main body portion 14 and used for connecting with wires. The L pole plug 11, the N pole plug 12 and the ground pole plug 13 are fixed on the main body 14. As shown in FIG. 1, the main body portion 14 is received in the receiving cavity 206, and the connection portion 15 passes through the through hole 27. Among them, the connection part 15 is connected to the electrical equipment through a wire.

In some embodiments, the aforementioned through hole 27 is formed in the side wall 2054 and the side wall 2044. For example, a part of the through hole 27 is located on the side wall 2054 and the other part is located on the side wall 2044. But not limited to this, the through hole 27 may also be located only on the side wall 2054 or only on the side wall 2044. In some embodiments, the through hole 27 is located on one side of the central axis of the plug protective sleeve 2, and the first concave portion 2041 and the second convex portion 2052 are located on the other opposite side of the central axis. The central axis refers to an axis passing through the center of the bottom wall 2053 of the upper cover 205 or an axis passing through the center of the bottom wall 2043 of the lower cover 204.

4, in some embodiments of the present disclosure, the plug protective sleeve 2 further includes an indicator light 24 arranged in the housing 20. The indicator light 24 is electrically connected to the L pole plug 11 and the N pole plug 12, and the indicator light 24. When the L-pole plug 11 and the N-pole plug 12 of the plug 1 are plugged into the power socket, the indicator 24 is electrically connected to the L-pole plug 11 and the N-pole plug 12, so that the indicator 24 lights up, thereby acting as a power source. Indicating role. When a surge voltage on the plug 1 causes the surge protector 21 to be damaged, the indicator light 24 will also be damaged due to the surge voltage. Therefore, when the surge protector 21 is damaged, the indicator light 24 will be extinguished, which means that the surge protector 21 is damaged and reminds the user that the surge protector 21 needs to be replaced.

Continuing to refer to FIG. 2, in some embodiments of the present disclosure, the plug protective cover 2 further includes a conductive fixing plate 25 that is received in the receiving cavity and fixed to the upper cover 205, and the surge protector 21 and the indicator light 24 are both fixed to the fixing plate 25, and the surge protector 21 and the indicator light 24 are electrically connected to the first conductive member 22 and the second conductive member 23 through the conductive fixing plate 25. By providing the fixing plate 25, the surge protector 21 and the indicator light 24 can be electrically connected to the first conductive member 22 and the second conductive member 23, and the fixed installation of the surge protector 21 and the indicator 24 is facilitated.

2 and 3, in some embodiments of the present disclosure, the upper cover 205 is provided with a notch 2055 corresponding to the indicator 24, so that the light generated by the indicator 24 can pass through the notch 2055, and the user can view the indicator 24. It is on or off.

4 and 5, in some embodiments of the present disclosure, the first conductive member 22 includes a first upper conductive sheet 221 fixed to the upper cover 205 and a first lower conductive sheet 222 fixed to the lower cover 204. The second conductive member 23 includes a second upper conductive sheet 231 fixed to the upper cover 205 and a second lower conductive sheet 232 fixed to the lower cover 204. The first upper conductive sheet 221 is electrically connected to the surge protector 21. After the upper cover 205 and the lower cover 204 are closed, the first upper conductive sheet 221 and the first lower conductive sheet 222 are inserted into each other. As a result, the first conductive member 22 is electrically connected to the surge protector 21. The second upper conductive sheet 231 is electrically connected to the surge protector 21. After the upper cover 205 and the lower cover 204 are closed, the second upper conductive sheet 231 and the second lower conductive sheet 232 are inserted into each other. As a result, the second conductive member 23 is electrically connected to the surge protector 21.

2, 5 and 6, the first lower conductive sheet 222 is disposed on one side of the L-pole socket 201 and is configured to contact the L-pole plug 11 of the plug 1, and the second lower conductive sheet 232 is disposed on the N-pole socket. One side of the hole 202 is configured to be in contact with the N-pole plug 12 of the plug 1.

By arranging the first conductive member 22 and the second conductive member 23 into a plug-in structure, when the upper cover 205 and the lower cover 204 are covered with each other, the first upper conductive piece 221 and the first lower conductive piece 222 can be plugged in. , And the insertion of the second upper conductive sheet 231 and the second lower conductive sheet 232. As described above, the contact surface between the lower cover 204 and the upper cover 205 is a curved surface. When the lower cover 204 is closed with the upper cover 205, the first concave portion 2041 of the lower cover 204 matches with the second convex portion 2052 of the upper cover 205; This facilitates the alignment of the first upper conductive sheet 221 and the first lower conductive sheet 222 when they are plugged in, and the alignment when the second upper conductive sheet 231 and the second upper conductive sheet 232 are plugged in. In this way, the electrical connection between the first upper conductive sheet 221 and the first lower conductive sheet 222, and the electrical connection between the second upper conductive sheet 231 and the second lower conductive sheet 232 can be realized, thereby realizing the surge protector 21 and the first lower conductive sheet 232. The electrical connection of the lower conductive sheet 222 and the second lower conductive sheet 232 makes the assembly of the first conductive member 22 and the second conductive member 23 more convenient.

The L pole plug 11, the N pole plug 12, and the ground pole plug 13 of the plug 1 pass through the L pole jack 201, the N pole jack 202, and the ground pole jack 203 on the lower cover 204 in turn, so that the L pole of the plug 1 The plug 11 is in contact with the first lower conductive sheet 222, the N-pole plug 12 of the plug 1 is in contact with the second lower conductive sheet 232, and then the upper cover 205 and the lower cover 204 are covered, so that the first upper conductive sheet 221 and the first lower conductive sheet 221 are in contact with each other. The conductive sheets 222 are plugged into each other, and the second upper conductive sheet 231 and the second lower conductive sheet 232 are plugged into each other, so as to realize the electrical connection between the surge protector 21 and the L pole plug 11 and the N pole plug 12.

In some embodiments of the present disclosure, the first lower conductive sheet 222 is in elastic contact with the L-pole plug 11; the second lower conductive sheet 232 is in elastic contact with the N-pole plug 12.

Utilizing the elasticity of the first lower conductive sheet 222 and the second lower conductive sheet 232, the first lower conductive sheet 222 is in elastic contact with the L pole plug 11, and the second lower conductive sheet 232 is in elastic contact with the N pole plug 12, so that the first The lower conductive sheet 222 is in close contact with the L-pole plug 11, and the second lower conductive sheet 232 is in close contact with the N-pole plug 12 to prevent the plug 1 from loosening, so that the electrical contact stability is good, and the surge protector 21 is stable and reliable in operation.

For example, referring to FIG. 4, the first lower conductive sheet 222 includes a first plug arm 2221 and a first elastic arm 2222. The first insertion arm 2221 is clamped with the side wall 2044 of the lower cover 204 and is inserted with the first upper conductive sheet 221. The first end of the first elastic arm 2222 is connected to the first plug-in arm 2221, and the second end of the first elastic arm 2222 is in elastic contact with the L-pole plug.

The second lower conductive sheet 232 includes a second plug-in arm 2321 and a second elastic arm 2322. The second plug-in arm 2321 is clamped with the side wall 2044 of the lower cover 204 and is plugged with the second upper conductive sheet 231. The first end of the second elastic arm 2322 is connected to the second plug-in arm 2321, and the second end of the second elastic arm 2322 is in elastic contact with the N-pole plug.

Therefore, both the first lower conductive sheet 222 and the second lower conductive sheet 232 have the simplest structure to realize the plug-in function and elastically contact the corresponding plug pins.

For example, the side wall 2044 of the lower cover 204 may include two card slots 20441, and the first plug arm 2221 and the second plug arm 2321 are respectively clamped in the corresponding card slots 20441, so as to realize the first lower conductive sheet 222 The second lower conductive sheet 232 is clamped on the side wall 2044 of the lower cover 204, which is more convenient for disassembly and assembly.

The plug-in structure of the first lower conductive sheet 222 and the first upper conductive sheet 221 may include a plug sleeve disposed on the first upper conductive sheet 221, and the first plug arm 2221 can be inserted into the plug sleeve. The plug-in structure of the second lower conductive sheet 232 and the second upper conductive sheet 231 may include a plug sleeve provided on the second upper conductive sheet 231, and the second plug arm 2321 can be inserted into the plug sleeve.

In some embodiments of the present disclosure, the plug protective cover 2 further includes a pressing plate 26 housed in the receiving cavity, and the first elastic arm 2222 of the first lower conductive sheet 222 and the second elastic arm 2322 of the second lower conductive sheet 232 are evenly pressed. It is tightly between the pressing plate 26 and the bottom wall 2043, so that the first lower conductive sheet 222 and the second lower conductive sheet 232 are both fixed on the lower cover 204. Among them, the pressure plate 26 is provided with through holes respectively corresponding to the L pole jack 201, the N pole jack 202, and the ground pole jack 203, so that the L pole pin 11, the N pole pin 12 and the ground pole pin 13 of the plug 1 pass through.过压板26。 Overpressure plate 26.

When the plug protective sleeve 2 is assembled with the plug 1, the main body 15 of the plug 1 is contained in the accommodating cavity 206, and then the L pole plug 11, the N pole plug 12 and the ground pole plug 13 of the plug 1 are passed through the pressure plate 26 in turn. And pass the L pole plug 11, the N pole plug 12 and the ground pole plug 13 of the plug 1 through the L pole jack 201, the N pole jack 202, and the ground pole jack 203 on the lower cover 204 in turn. , Until the main body 15 abuts the pressure plate 26, at this time the plug 1 and the plug protective sleeve 2 are inserted in place, and then the upper cover 205 is arranged on the lower cover 204, so that the first upper conductive sheet 221 and the first lower conductive sheet 222 is plugged into each other, the second upper conductive sheet 231 and the second lower conductive sheet 232 are plugged into each other, and the wiring portion 15 of the plug 1 passes through the through hole 27 to complete the assembly of the plug protective cover 2 and the plug 1.

In some embodiments of the present disclosure, the plug protective cover 2 may further include a night light (not shown) fixed to the housing 20 and electrically connected to the first conductive member 22 and the second conductive member 23, respectively. When the L pole plug 11, N pole plug 12, and ground pole pin 13 of plug 1 are plugged into the power socket, the L pole plug 11 and N pole plug 12 of plug 1 are cleverly used to power the night light, and the night light is used Lighting at night is convenient for users to use, and because of the lighting of night lights, it is convenient for users to plug in and out plug 1 at night.

In some embodiments of the present disclosure, the plug protective sleeve 2 may further include a circuit board (not shown) fixed to the housing 20 and electrically connected to the first conductive member 22 and the second conductive member 23, and a circuit board connected to the circuit board. USB interface (not shown). When the L pole plug 11, the N pole plug 12 and the ground pole pin 13 of the plug 1 are plugged into the power socket, the user can use the USB interface on the plug protective sleeve 2 to charge the electronic device, which enriches the plug protective sleeve 2. The use function greatly facilitates the user's use.

9 and 10, when the plug 1 is a two-plug plug implementation, that is, when the plug 1 includes an L-pole plug 11 and an N-pole plug 12. 11, in some embodiments of the present disclosure, the plug protective sleeve 2 includes: a housing 20, a surge protector 21 arranged in the housing 20, a first conductive member 22 arranged in the housing 20, and The second conductive member 23 in the housing 20. The housing 20 includes an L-pole socket 201 through which the L-pole plug 11 of the plug 1 passes and an N-pole socket 202 through which the N-pole plug 12 of the plug 1 passes. The first conductive member 22 is electrically connected to the surge protector 21. The first conductive element 22 is located on the side of the L-pole insertion hole 201, and the first conductive element 22 contacts the L-pole insertion pin 11 when the L-pole insertion pin 11 passes through the L-pole insertion hole 201. The second conductive member 23 is electrically connected to the surge protector 21. The second conductive element 23 is located on the side of the N-pole socket 202, and the second conductive element 23 contacts the N-pole plug 12 when the N-pole plug 12 passes through the N-pole socket 202.

In some embodiments of the present disclosure, the plug 1 is a two-pin plug of the national standard (ie, the Chinese standard), and the L-pole jack 201 and the N-pole jack 202 form the two-pin jack of the national standard. When the plug 1 and the plug protective sleeve 2 are assembled, the L-pole plug 11 of the plug 1 passes through the L-pole socket 201 and contacts the first conductive member 22, and the N-pole plug 12 of the plug 1 passes through the N-pole socket 202 and connects with The second conductive member 23 contacts, so that the surge protector 21 is electrically connected to the L pole plug 11 and the N pole plug 12 through the first conductive member 22 and the second conductive member 23, respectively. When the plug 1 has a surge voltage, the surge protector 21 protects the electrical equipment connected to the plug 1 to prevent the electrical equipment from being damaged by the surge voltage. It should be noted that the plug 1 can also be a two-plug plug such as a European standard, and the jack on the plug protective sleeve 2 is adapted to the plug of the plug 1.

9 and 11, in some embodiments of the present disclosure, the housing 20 includes a lower cover 204 and an upper cover 205, the structure of the lower cover 204 and the upper cover 205 are the same, the upper cover 205 and the lower cover 204 cover each other to form a In the receiving cavity 206 for receiving the plug 1. The lower half of the L-pole jack 201 and the N-pole jack 202 are both set on the lower cover 204, and the upper half of the L-pole jack 201 and the N-pole jack 202 are both set on the upper cover 205. The plug 1 is protected by the accommodating cavity 206, which improves the safety performance of the plug 1 during use, and can play the role of dustproof and waterproof, and ensures the stable conduction between the plug 1 and the socket. In addition, by arranging the upper cover 205 and the lower cover 204 to have the same structure, the versatility of the mold can be improved.

11, in some embodiments of the present disclosure, the upper cover 205 includes a bottom wall 2053 and side walls 2054 extending from the bottom wall 2053; the outer sides of the two opposite side walls 2045 of the upper cover 205 are respectively provided with a card slot 2045 As with the claws 2056, the structure of the lower cover 204 is the same as that of the upper cover 205. After the upper cover 205 is buckled with the lower cover 204, the claws 2056 on the upper cover 205 are engaged with the grooves 2045 on the lower cover 204. The clamping slot 2045 on the upper cover 205 and the claw 2056 on the lower cover 204 are engaged in a coordinated clamping. By arranging the upper cover 205 and the lower cover 204 in a snap connection with each other, the assembly of the upper cover 205 and the lower cover 204 is facilitated, and the upper cover 205 and the lower cover 204 are assembled more firmly. It should be noted that the embodiment of the present disclosure does not limit the shape of the plug protective sleeve 2. As shown in FIG. 9, the shape of the plug protective cover 2 can be matched with the shape of the plug 1.

11, in some embodiments of the present disclosure, the first conductive member 22 includes a first spring fixed on the upper cover 205, the first end of the first spring is connected to the surge protector 21, and the second end of the first spring It is configured to elastically contact the L-pole plug 11 after the L-pole plug 11 passes through the L-pole socket.

11, in some embodiments of the present disclosure, the second conductive member 23 includes a second spring fixed on the upper cover 205, the first end of the second spring is connected to the surge protector 21, the second spring The end is configured to elastically contact the N-pole plug 12 after the N-pole plug 12 passes through the N-pole socket.

11, in some embodiments of the present disclosure, the plug protective sleeve 2 further includes an indicator light 24 disposed in the housing 20. The indicator light 24 is connected to the L pole plug 11 and the N pole plug through the first spring and the second spring, respectively. 12 Electrical connection. By setting the indicator light 24, when the L pole plug 11 and the N pole pin 12 of the plug 1 are plugged into the power socket, because the indicator light 24 is electrically connected to the L pole pin 11 and the N pole pin 12, the indicator light 24 lights up, thus playing the role of power indicator. When a surge voltage on the plug 1 causes the surge protector 21 to be damaged, the indicator light 24 will also be damaged due to the surge voltage. Therefore, when the surge protector 21 is damaged, the indicator light 24 will be extinguished, which means that the surge protector 21 is damaged and reminds the user that the surge protector 21 needs to be replaced.

9, in some embodiments of the present disclosure, the upper cover 205 is provided with a notch 2055 corresponding to the indicator 24, so that the light generated by the indicator 24 can pass through the notch 2055, and the user can check that the indicator 24 is on. Or off state. It should be noted that the upper cover 205 can also be provided with a mounting hole, and the upper part of the indicator light 24 extends from the mounting hole, so that it is more convenient to view the indicator light 24.

Some embodiments of the present disclosure also provide an electrical device, including the above-mentioned plug structure 3, and the electrical device may be a power socket with a plug or an electrical appliance with a plug. By adding the plug protective sleeve 2 to the plug 1 of the electrical equipment, the replacement and upgrade of the surge protector 21 are simple and convenient. In addition, a layer of anti-surge protection is added in front of the electrical equipment with anti-surge function to play the role of secondary anti-surge protection. For example, when a surge voltage occurs on the plug 1 of the electrical equipment, the surge protector 21 of the plug protective sleeve 2 is first used for surge protection, so as to prevent the surge protector and other components inside the electrical equipment from being damaged. Or when the electrical equipment is a surge-proof socket, the protective sleeve provides further surge protection for the electrical appliances connected to the socket.

The above are only specific implementations of the present disclosure, but the protection scope of the present disclosure is not limited to this. Any person skilled in the art who thinks of changes or substitutions within the technical scope disclosed in the present disclosure shall cover Within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

A plug protective cover, including:

A housing, the housing includes:

L-pole jack, wherein the L-pole jack is used for passing the L-pole pin of the plug;

N-pole jack, wherein the N-pole jack is used for passing through the N-pole pin of the plug; and

A surge protector arranged in the housing;

A first conductive member arranged in the housing, the first conductive member is located at one side of the L-pole socket, the first conductive member is electrically connected to the surge protector, and the first conductive member The conductive member is configured to contact the L-pole plug after the L-pole plug passes through the L-pole socket;

A second conductive member disposed in the housing, the second conductive member is located on one side of the N-pole socket, the second conductive member is electrically connected to the surge protector, and the second conductive member is electrically connected to the surge protector. The conductive member is configured to contact the N-pole plug after the N-pole plug passes through the N-pole socket.
The plug protective sleeve according to claim 1, wherein the plug is a three-plug plug, and the housing further comprises a ground pole socket for the ground pole pin of the three-plug plug to pass through.
The plug protective cover according to claim 2, wherein the housing comprises:

Lower cover; the L pole jack, the N pole jack and the ground pole jack are all provided on the lower cover;

The upper cover, the upper cover and the lower cover cover each other to form a receiving cavity for accommodating the plug.
The plug protective cover according to claim 1, wherein the plug is a two-plug plug, and the housing comprises:

lower lid;

The upper cover, the upper cover and the lower cover have the same structure, the upper cover and the lower cover cover each other to form a receiving cavity for accommodating the plug, and a part of the L pole socket is provided in On the lower cover, another part of the L-pole socket is provided on the upper cover; a part of the N-pole socket is provided on the lower cover, and another part of the N-pole socket is provided on the上盖上。 The upper cover.
The plug protective cover according to claim 3 or 4, wherein when the upper cover is closed on the lower cover, the plug is compressed between the upper cover and the lower cover.
The plug protective cover according to claim 3, wherein the first conductive member comprises:

A first upper conductive sheet fixed on the upper cover, and the first upper conductive sheet is electrically connected to the surge protector;

A first lower conductive sheet fixed on the lower cover, the first lower conductive sheet is disposed on one side of the L-pole insertion hole, and is configured to pass through the L-pole insertion hole when the L-pole plug Contact with the L pole pin;

Wherein, the first upper conductive sheet and the first lower conductive sheet are plugged into each other.
The plug protective cover according to claim 3, wherein the second conductive member comprises:

A second upper conductive sheet fixed on the upper cover, and the second upper conductive sheet is electrically connected to the surge protector;

A second lower conductive sheet fixed on the lower cover, the second lower conductive sheet is disposed on one side of the N-pole socket and is configured to pass through the N-pole socket when the N-pole plug Contact with the N-pole plug;

Wherein, the second upper conductive sheet and the second lower conductive sheet are connected to each other.
7. The plug protective sleeve according to claim 6, wherein the first lower conductive sheet is in elastic contact with the L pole plug.
8. The plug protective sleeve according to claim 8, wherein the first lower conductive sheet comprises:

A first plug-in arm, the first plug-in arm is snap-connected with the lower cover, and is plug-connected with the first upper conductive sheet;

A first elastic arm, the first elastic arm is connected to the lower cover, the first end of the first elastic arm is connected to the first plug-in arm, and the second end of the first elastic arm is configured This is to make elastic contact with the L-pole plug after the L-pole plug passes through the L-pole insertion hole.
The plug protective sleeve according to claim 9, wherein the plug-in structure of the first lower conductive sheet and the first upper conductive sheet comprises a plug sleeve arranged on the first upper conductive sheet, and the first The plug arm is inserted into the plug sleeve.
8. The plug protective sleeve of claim 7, wherein the second lower conductive sheet is in elastic contact with the N-pole plug.
The plug protective sleeve according to claim 11, wherein the second lower conductive sheet comprises:

A second plug-in arm, the second plug-in arm is snap-connected to the lower cover, and is plug-connected to the second upper conductive sheet;

Second elastic arm, the first end of the second elastic arm is connected to the second plug-in arm, and the second end of the second elastic arm is configured to pass through the N-pole when the N-pole plug After the jack is in elastic contact with the N-pole plug.
The plug protective sleeve according to claim 12, wherein the plug-in structure of the second lower conductive sheet and the second upper conductive sheet comprises a plug sleeve provided on the second upper conductive sheet, and the second The plug arm is inserted into the plug sleeve.
The plug protective sleeve according to claim 4, wherein the first conductive member comprises a first spring fixed on the upper cover, and the first end of the first spring is connected to the surge protector, so The second end of the first spring is configured to elastically contact the L-pole plug after the L-pole plug passes through the L-pole insertion hole.
The plug protective sleeve according to claim 4, wherein the second conductive member comprises a second spring fixed on the upper cover, and a first end of the second spring is connected to the surge protector, so The second end of the second spring is configured to elastically contact the N-pole plug after the N-pole plug passes through the N-pole socket.
The plug protective cover according to claim 3, wherein the upper cover includes a bottom wall and a side wall extending from the bottom wall, and the lower cover includes a bottom wall and a side wall extending from the bottom wall ；

The contact surface between the side wall of the lower cover and the side wall of the upper cover is curved or flat.
The plug protective sleeve according to claim 16, wherein the side wall of the upper cover is provided with elastic claws, the side wall of the lower cover is provided with a card slot, and the upper cover and the lower cover buckle After being closed, the elastic claws fit into the clamping groove.
The plug protective cover according to claim 4, wherein the upper cover includes a bottom wall and a side wall extending from the bottom wall, and the lower cover includes a bottom wall and a side wall extending from the bottom wall .
The plug protection sleeve according to claim 18, wherein the outer sides of the two opposite side walls of the upper cover are respectively provided with clamping grooves and claws, and the outer sides of the opposite two side walls of the lower cover are respectively provided with clips After the upper cover and the lower cover are buckled together, the claws on the upper cover are engaged with the grooves on the lower cover, and the grooves on the upper cover are engaged with the grooves on the lower cover. The claws on the lower cover are engaged with each other.
The plug protective cover according to claim 16, wherein:

The side wall of the lower cover has a first concave portion and two opposite first convex portions, and the first concave portion is located between the two opposite first convex portions;

The side wall of the upper cover has two opposite second concave portions and second convex portions, and the second convex portion is located between the two opposite second concave portions;

When the upper cover is closed with the lower cover, the first concave portion is matched with the second convex portion, and the first convex portion is matched with the corresponding second concave portion.
The plug protective cover according to claim 20, wherein the plug includes a main body, and a wiring part extending from the main body and used for connecting with wires, the L-pole plug, the N-pole plug, and the The earth pole plug is fixed to the main body part;

The upper cover and the lower cover jointly form a receiving cavity for accommodating the main body and a through hole communicating with the receiving cavity, and the connecting portion extends out of the plug protective cover from the through hole.
22. The plug protective cover of claim 21, wherein the through hole is formed in the side wall of the upper cover and the side wall of the lower cover, and is located on one side of the central axis of the plug protective cover, The first concave portion and the second convex portion are located on the other opposite side of the central axis;

The central axis refers to an axis passing through the center of the bottom wall of the upper cover, or an axis passing through the center of the bottom wall of the lower cover.
The plug protective sleeve according to claim 3, further comprising a pressure plate, the pressure plate comprising a through hole corresponding to the L pole pin, the N pole pin and the ground pole pin of the plug one to one;

When the plug is installed in the plug protective sleeve, the L pole pin, N pole pin and ground pole pin of the plug correspondingly pass through the through hole on the pressure plate and the L pole on the lower cover in turn. Jack, N pole jack and ground pole jack; and,

The pressure plate abuts against the first conductive member and the second conductive member to ensure that the first conductive member contacts the L pole pin of the plug, and the second conductive member contacts the N pole of the plug. The pole pin contacts.
The plug protective sleeve according to claim 3 or 4, further comprising an indicator lamp located in the housing, the indicator lamp being electrically connected to the first conductive member and the second conductive member; and

The indicator light is configured to be damaged accompanying the damage of the surge protector caused by the surge voltage on the plug.
24. The plug protective cover according to claim 24, the upper cover includes a notch corresponding to the indicator light, so that the light generated by the indicator light can pass through the notch.
A plug structure, comprising: a plug and the plug protective cover according to any one of claims 1-25;

The plug includes an L pole plug and an N pole plug;

The L-pole plug passes through the L-pole socket and is in contact with the first conductive member;

The N-pole plug passes through the N-pole socket and is in contact with the second conductive member.
The plug structure according to claim 26, wherein the plug further comprises a ground pole plug, the plug protective sleeve further includes a ground pole socket, and the ground pole plug passes through the ground pole socket.
An electrical device comprising the plug structure according to claim 26 or 27.