Safety socket

By setting a stop structure and an ejection mechanism in the safety socket, the safety hazards of traditional sockets when the plug is not connected to the plug is solved, and a safe design is realized that the plug sleeve contacts the power supply contacts after the plug is inserted, improving the power safety.

CN111786174BActive Publication Date: 2025-08-29GONEO GRP CO LTD
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Patent Information

Application Number
CN202010816348.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-08-14
Publication Date
2025-08-29
Estimated Expiration
2040-08-14

AI Technical Summary

Technical Problem

When the traditional safety socket is not connected to the plug, the socket body can still be pressed down, causing the plug sleeve to come into contact with the power supply contact, which poses a safety hazard.

Method used

By setting the first stop structure between the socket body and the housing and the second stop structure on the protective door, the socket body cannot be pressed when the protective door is closed, and pressing is only allowed when the protective door is opened after the plug is inserted, and pressing and ejecting of the socket body is achieved in combination with the ejection mechanism.

Benefits of technology

Eliminates safety hazards when the safety socket is not connected to the plug, ensures that the plug sleeve and the power withdrawal contact only come into contact after the plug is inserted, improving the safety of electricity usage.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN111786174B_ABST
    Figure CN111786174B_ABST
Patent Text Reader

Abstract

The present disclosure provides a safety socket, which belongs to the field of sockets. The safety socket includes a shell and a socket body. The socket body is located in the shell and can be pressed down or popped up relative to the shell; the shell has a first stop structure; the socket body has a protective door, and the protective door has a second stop structure; when the protective door is in a closed state, the first stop structure cooperates with the second stop structure to prevent the socket body from being pressed down relative to the shell; when the protective door is in an open state, the first stop structure separates from the second stop structure, and the socket body can be pressed down relative to the shell. By cooperating with the first stop structure and the second stop structure, the socket body cannot be pressed down relative to the shell when the protective door is in a closed state. The socket body can only be pressed down relative to the shell when the protective door is in an open state, thereby eliminating safety hazards.
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Description

Technical Field

[0001] The present disclosure relates to the field of sockets, and in particular to a safety socket. Background Art

[0002] A socket, also known as a power outlet or switch socket, is an electrical device that provides a power interface for electrical appliances. The socket has a socket inside and a jack on the outside. The plug of an electrical appliance is inserted into the jack and contacts the socket, thus connecting the appliance to the circuit.

[0003] The sockets of traditional electrical outlets are always live, posing a risk. To improve electrical safety, safety sockets have emerged. These sockets consist of a housing and a socket body, which is mounted on the housing and floats relative to it. Before a plug is inserted, the sockets within the floating plug are de-energized. The socket is located within the socket body. During insertion, the floating plug is pressed into the housing and locked by a locking mechanism, ensuring that the sockets maintain contact with the power contacts within the housing, establishing an electrical connection. This means that the sockets of these safety sockets remain live only when the socket body is pressed into the housing, improving safety.

[0004] However, even if this safety socket is not connected to a plug, the socket body can be pressed down by directly pressing the socket body with the hand, so that the socket sleeve contacts the power contact and becomes energized, which still poses a certain safety hazard. Summary of the Invention

[0005] The embodiment of the present disclosure provides a safety socket, which can improve the safety of the safety socket. The technical solution is as follows:

[0006] An embodiment of the present disclosure provides a safety socket, comprising a housing and a socket body, wherein the socket body is located within the housing and can be pressed down or popped up relative to the housing;

[0007] The housing has a first stop structure;

[0008] The socket body has a protective door, and the protective door has a second stopping structure;

[0009] When the protective door is in a closed state, the first stop structure cooperates with the second stop structure to prevent the socket body from being pressed relative to the housing;

[0010] When the protection door is in an open state, the first stop structure is separated from the second stop structure, and the socket body can be pressed relative to the housing.

[0011] Optionally, the first stopping structure includes a stopping protrusion;

[0012] The second stop structure includes a raised portion located on a side surface of the protective door;

[0013] When the protection door is in a closed state, the protrusion abuts against the stop protrusion.

[0014] Optionally, a guide groove is provided on the side wall of the housing, the guide groove having a first side wall and a second side wall opposite to each other, the guide groove is located on the side wall of the housing and extends along the pressing direction of the socket body;

[0015] The stop protrusion is located in the guide groove, the stop protrusion is connected to the first side wall, and protrudes toward the second side wall;

[0016] The protrusion is located in the guide groove;

[0017] When the protection door is in a closed state, the protrusion is located on one side of the first side wall;

[0018] When the protection door is in an open state, the protrusion is located on one side of the second side wall.

[0019] Optionally, an edge of the upper surface of the stop protrusion close to the second side wall is not lower than an intersection line of the upper surface and the first side wall;

[0020] An edge of the lower surface of the stopping protrusion close to the second side wall is higher than an intersection line of the lower surface and the first side wall.

[0021] Optionally, a limiting sliding groove is provided on the side wall of the shell, and the limiting sliding groove extends along the pressing direction of the socket body;

[0022] The outer side wall of the socket body is further provided with a limiting protrusion, and the limiting protrusion is located in the limiting sliding groove.

[0023] Optionally, when the socket body is in a pop-up state, the limiting protrusion contacts the end of the limiting sliding groove, and there is a gap between the protrusion and the end of the guide groove.

[0024] Optionally, a strip groove is provided on the side wall of the socket body, an extension direction of the strip groove is perpendicular to a pressing direction of the socket body, and the protrusion is located in the strip groove.

[0025] Optionally, a pop-up mechanism is provided between the bottom of the socket body and the inner wall of the shell.

[0026] Optionally, the ejection mechanism includes a cylinder, a U-shaped ring and a spring;

[0027] One end of the column is connected to the bottom surface of the socket body, and two opposite side surfaces of the column are provided with guide rail grooves;

[0028] The bottom of the U-shaped ring is connected to the housing, and both ends of the U-shaped ring are respectively located in the guide rail groove;

[0029] The spring is coaxial with or parallel to the column, one end of the spring is connected to the column, and the other end is connected to the housing.

[0030] Optionally, the safety socket has a power-taking contact, which includes an elastic conductor and a static contact, and the static contact is located on a side of the elastic conductor close to the socket body;

[0031] One end of the elastic conductor is connected to the inner wall of the shell, and the other end is connected to the static contact.

[0032] Optionally, the safety socket has a socket, the socket includes a conductor and a moving contact, the conductor is connected to the moving contact, the conductor is located in the socket body, and the moving contact is located outside the socket body. When the socket body is pressed relative to the shell, the moving contact contacts the static contact; when the socket body pops up relative to the shell, the moving contact separates from the static contact.

[0033] The beneficial effects of the technical solutions provided by the embodiments of the present disclosure include at least:

[0034] Through the cooperation of the first stop structure on the shell and the second stop structure on the protective door, the socket body cannot be pressed relative to the shell when the protective door is in the closed state. The socket body can only be pressed relative to the shell when the protective door is in the open state, and the protective door will not be opened until the plug is inserted. In other words, when the safety socket is not connected to a plug, the socket body will not be pressed, and the socket sleeve in the socket body will naturally not contact the power contact, thereby eliminating safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0036] Figure 1 This is a schematic diagram of the assembly structure of a safety socket provided by an embodiment of the present disclosure;

[0037] Figure 2 This is a schematic diagram of the exploded structure of a safety socket provided by an embodiment of the present disclosure;

[0038] Figure 3is an assembly diagram of the ejection mechanism;

[0039] Figure 4 This is a schematic diagram of the cooperation between the U-shaped ring and the guide rail groove;

[0040] Figure 5 It is a schematic diagram of the movement path of the U-shaped ring in the guide rail groove;

[0041] Figure 6 is a cross-sectional view of a safety socket provided by an embodiment of the present disclosure;

[0042] Figure 7 is a cross-sectional view of a safety socket provided by an embodiment of the present disclosure;

[0043] Figure 8 This is a schematic diagram of the internal structure of a safety socket provided by an embodiment of the present disclosure;

[0044] Figure 9 This is a schematic diagram of the internal structure of a safety socket provided by an embodiment of the present disclosure;

[0045] Figure 10 This is a schematic diagram of the internal structure of another safety socket provided by an embodiment of the present disclosure;

[0046] Figure 11 This is a schematic diagram of the internal structure of another safety socket provided by an embodiment of the present disclosure;

[0047] Figure 12 is a cross-sectional view of a safety socket provided by an embodiment of the present disclosure;

[0048] Figure 13 yes Figure 12 The enlarged schematic diagram of point E in FIG.

[0049] Figure 14 This is a force analysis diagram of a protrusion provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0050] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0051] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by persons of ordinary skill in the field to which the present disclosure belongs. The words “first”, “second”, “third” and similar terms used in the patent application specification and claims of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as “a” or “an” do not indicate a quantity limitation, but rather indicate the presence of at least one. Words such as “include” or “comprise” mean that the elements or objects appearing before “include” or “comprises” include the elements or objects listed after “include” or “comprises” and their equivalents, and do not exclude other elements or objects. Words such as “connect” or “connected” are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. “Up”, “down”, “left”, “right” and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0052] Figure 1 FIG. 1 is a schematic diagram of the assembly structure of a safety socket provided by an embodiment of the present disclosure. Figure 1 As shown, the safety socket includes a housing 10 and a socket body 20. The socket body 20 is located in the housing 10 and can be pressed relative to the housing 10 (as shown in FIG. Figure 1 A in the figure) or bounce (as shown in Figure 1 (as shown in Figure B).

[0053] Figure 2 Schematic diagram of the decomposition structure of a safety socket provided by an embodiment of the present disclosure. Figure 2 As shown, the housing 10 has a first stop structure 101 .

[0054] The socket body 20 has a protection door 21 , and the protection door 21 has a second stopping structure 211 .

[0055] When the protection door 21 is in the closed state, the first stopping structure 101 cooperates with the second stopping structure 211 to prevent the socket body 20 from being pressed relative to the housing 10 .

[0056] When the protection door 21 is in the open state, the first stopping structure 101 is separated from the second stopping structure 211 , and the socket body 20 can be pressed relative to the housing 10 .

[0057] Through the cooperation of the first stop structure on the shell and the second stop structure on the protective door, the socket body cannot be pressed relative to the shell when the protective door is in the closed state. The socket body can only be pressed relative to the shell when the protective door is in the open state, and the protective door will not be opened until the plug is inserted. In other words, when the safety socket is not connected to a plug, the socket body will not be pressed, and the socket sleeve in the socket body will naturally not contact the power contact, thereby eliminating safety hazards.

[0058] like Figure 2 As shown, a push-push mechanism 30 is provided between the bottom of the socket body 20 and the inner wall of the housing 10. This push-push mechanism 30 allows the socket body 20 to be pressed down or popped up relative to the housing 10. When the socket body 20 is in the popped-up position, inserting a plug into the socket body 20 opens the protective door 21. After pressing the socket body 20, the push-push mechanism 30 maintains the pressed position. Pressing the socket body 20 again causes the push-push mechanism 30 to return the socket body 20 to the popped-up position.

[0059] The ejection mechanism 30 includes a column 31 , a U-shaped ring 32 and a spring 33 . Figure 3 It is an assembly diagram of the ejection mechanism. Figure 3 Also shown is a portion of the housing 10 and the socket body 20. Figure 3 As shown, one end of the column 31 is connected to the bottom surface of the socket body 20, and two opposite sides of the column 31 are provided with guide grooves 311. The bottom of the U-shaped ring 32 is connected to the housing 10, and the two ends of the U-shaped ring 32 are respectively located in the guide grooves 311. The spring 33 is coaxial or parallel to the column 31, with one end of the spring 33 connected to the column 31 and the other end of the spring 33 connected to the housing 10.

[0060] The guide groove 311 is a one-way groove, that is, the end of the U-shaped ring 32 can only move in a fixed direction along the guide groove 311 .

[0061] Figure 4 This is a schematic diagram of the cooperation between the U-shaped ring and the guide rail groove. Figure 4 As shown, the guide rail groove 311 includes a straight segment 311a, a V-shaped segment 311b and a broken line segment 311c, one end of the V-shaped segment 311b is connected to one end of the straight segment 311a, the other end of the V-shaped segment 311b is connected to one end of the broken line segment 311c, and the other end of the broken line segment 311c is connected to the middle of the straight segment 311a.

[0062] The straight section 311a is parallel to the pressing direction of the socket body 20. The end of the U-shaped ring 32 can slide along the guide groove 311 from the straight section 311a to the V-shaped section 311b, from the V-shaped section 311b to the folded line section 311c, and from the folded line section 311c back to the straight section 311a.

[0063] Figure 5 This is a schematic diagram of the movement path of the U-shaped ring in the guide rail groove. Figure 5 As shown, when the socket body 20 is in the pop-up state, the end of the U-shaped ring 32 is located in the straight line segment 311a, for example Figure 5 Position A in the middle. Insert the plug into the socket body 20 to open the protective door 21. Then press the socket body 20. The end of the U-shaped ring 32 slides along the straight segment 311a from the end of the straight segment 311a away from the V-shaped segment 311b to the end connected to the V-shaped segment 311b. When the socket body 20 is pressed to the lowest position, the end of the U-shaped ring 32 reaches the end of the straight segment 311a. Figure 5 At this time, release the socket body 20 and stop pressing. The socket body 20 rebounds a distance under the action of the spring 33. During the rebound process, the end of the U-shaped ring 32 slides into one end of the V-shaped portion 311b and reaches the middle of the V-shaped section 311b, for example Figure 5 At the C position, the socket body 20 stops rebounding, thereby remaining in the pressed state. At this time, the state of the U-shaped ring 32 can be referred to Figure 4 .

[0064] When the socket body 20 is in the pressed state, the socket body 20 is pressed, and the end of the U-shaped ring 32 slides out from the other end of the V-shaped segment 311b and enters the broken line segment 311c, for example Figure 5 The socket body 20 is then released, and the socket body 20 pops out under the action of the spring 33. During the popping-out process, the end of the U-shaped ring 32 slides back to the straight line segment 311a along the broken line segment 311c, and the socket body 20 returns to the popped-up state, and the end of the U-shaped ring 32 returns to the A position.

[0065] Optionally, when the socket body 20 is in an upward position, the socket body 20 protrudes from the outer surface of the housing 10. When the socket body 20 is in a downward position, the outer surface of the socket body 20 is flush with the outer surface of the housing 10. The two positions of the socket body 20 protruding from the outer surface of the housing 10 and being flush with the outer surface of the housing 10 provide a relatively clear visual contrast, making it easier to distinguish whether the socket body 20 is in an upward position or a downward position.

[0066] In addition, in some examples, when the socket body 20 is popped up or pressed down, the socket body 20 may also protrude from the outer surface of the housing 10. Alternatively, when the socket body 20 is popped up or pressed down, the socket body 20 may be concave relative to the outer surface of the housing 10.

[0067] In other examples, when the socket body 20 pops up, the socket body 20 protrudes from the outer surface of the housing 10, and when the socket body 20 is pressed down, the socket body 20 is recessed relative to the outer surface of the housing 10. Alternatively, when the socket body 20 pops up, the outer surface of the socket body 20 is flush with the outer surface of the housing 10, and when the socket body 20 is pressed down, the socket body 20 is recessed relative to the outer surface of the housing 10.

[0068] like Figure 3 As shown, the housing 10 includes an upper cover 11 , a lower cover 13 and a rear cover 12 . Figure 6 : is a cross-sectional view of a safety socket provided by an embodiment of the present disclosure. Figure 1 Section Ⅰ-Ⅰ in the figure. Figure 6 As shown, the upper cover 11 has a socket 10b and a cylindrical portion 111 surrounding the socket 10b. The upper cover 11 and the rear cover 12 are interconnected, forming a cavity between the upper cover 11 and the rear cover 12. The cylindrical portion 111 and the lower cover 13 are both located in this cavity, and the cylindrical portion 111 is connected to the lower cover 13. The cylindrical portion 111 and the lower cover 13 form a socket body receiving groove K to accommodate the socket body 20. For example, the cylindrical portion 111 and the lower cover 13 can be connected by a snap-fit ​​connection to facilitate disassembly and assembly of the safety socket.

[0069] The housing 10 has a power contact 102 located within the cavity. The power contact 102 can be secured to the rear cover 12. The lower cover 13 also has a through hole 13a. Part of the power contact 102 is located within the through hole 13a to facilitate contact with the socket 231 of the socket body 20 when the socket body 20 is pressed.

[0070] like Figure 6 As shown, the power contact 102 includes an elastic conductor 1021 and a static contact 1022 . The static contact 1022 is located on a side of the elastic conductor 1021 close to the socket body 20 .

[0071] One end of the elastic conductor 1021 is connected to the inner wall of the housing 10 , and the other end is connected to the static contact 1022 .

[0072] In the embodiment of the present disclosure, one end of the elastic conductor 1021 is connected to the inner wall of the rear cover 12 , and the static contact 1022 is located in the through hole 13 a . Figure 7 : is a cross-sectional view of a safety socket provided by an embodiment of the present disclosure. Figure 1 Section II-II in the figure. Figure 7As shown, when the socket body 20 is pressed, the static contact 1022 of the electrical contact 102 contacts the socket 231 of the socket body 20 , and the elastic conductor 1021 is in a compressed state, so that the static contact 1022 and the socket 231 can maintain contact.

[0073] Optionally, the elastic conductor 1021 may be a metal spring or a metal shrapnel. Both the metal spring and the metal shrapnel are conductive and can generate elastic deformation when squeezed by the socket 231 of the socket body 20.

[0074] like Figure 7 As shown, the socket body 20 may include a jack panel 22, a socket seat 23, and a pressure plate 24. The jack panel 22 is connected to the top of the socket seat 23, and a cavity 20a is formed between the jack panel 22 and the top surface of the socket seat 23. The pressure plate 24 is located at the bottom of the socket seat 23 and is connected to the socket seat 23. The socket seat 23 and the pressure plate 24 enclose a space to accommodate the socket 231.

[0075] The jack panel 22 and the socket seat 23, as well as the pressure plate 24 and the socket seat 23 can be connected by snap fasteners to facilitate assembly and disassembly of the safety socket.

[0076] like Figure 7 As shown, the bottom of the socket body 20 has a through hole 24a, through which the socket 231 in the socket body 20 partially extends. When the socket body 20 is pressed, the portion of the socket 231 outside the through hole 24a can contact the static contact 1022 of the power contact 102. In the disclosed embodiment, the through hole 24a is located on the pressure plate 24.

[0077] The socket 231 includes a conductor 2311 and a movable contact 2312. The conductor 2311 and the movable contact 2312 are connected. The conductor 2311 is located inside the socket body 20, while the movable contact 2312 is located outside the socket body 20. When the socket body 20 is pressed against the housing 10, the movable contact 2312 contacts the stationary contact 1022. When the socket body 20 is lifted relative to the housing 10, the movable contact 2312 separates from the stationary contact 1022.

[0078] The protective door 21 can be located in the cavity 20a between the jack panel 22 and the top surface of the socket seat 23. A spring 212 is also located in the cavity 20a. One end of the spring 212 is connected to the protective door 21, and the other end is connected to the inner wall of the jack panel 22. When the protective door 21 is opened by the push of the plug, the spring 212 is gradually compressed. After the plug is separated from the safety socket, the protective door 21 can move and close under the elastic force of the spring 212.

[0079] The jack panel 22 can have a jack 22b. When connecting a plug to a safety socket, the pin of the plug can be inserted into the jack 22b, and then the protection door 21 is pushed to open the protection door 21, and finally enter the socket seat 23 to contact the conductor 2311 of the socket 231 in the socket seat 23.

[0080] In some examples, the sockets 22b of the socket panel 22 are sockets 22b that mate with plugs having two conductive pins. In other examples, the sockets 22b of the socket panel 22 may also mate with plugs having three conductive pins. The sockets 22b may be round or rectangular.

[0081] Figure 8 and 9 This is a schematic diagram of the internal structure of a safety socket provided by an embodiment of the present disclosure. Figure 8 and Figure 9 Part of the side wall of the upper cover 11, part of the side wall of the lower cover 13, and the wall of the jack panel 22 having the jack 22b are omitted.

[0082] like Figure 8 As shown, the first stop structure 101 includes a stop protrusion 1012. The second stop structure 211 includes a protrusion 2111 located on the side of the protection door 21, and the protrusion 2111 extends relative to the outer wall of the socket body 20. Figure 8 When the protection door 21 is in the closed state, the protrusion 2111 abuts against the stop protrusion 1012. Figure 9 When the protection door 21 is in the open state, the stop protrusion 1012 is separated from the protruding portion 2111.

[0083] For example, the protrusion 2111 may be cylindrical, one end of which is connected to the side of the protection door 21 and the other end of which extends relative to the outer wall of the socket body 20. The stop protrusion 1012 may be provided on the inner wall of the cylindrical portion 111 of the upper cover 11.

[0084] Before the plug is inserted into the safety socket, the protective door 21 is closed. The raised portion 2111 is located directly above the stop protrusion 1012. If the socket body 20 is pressed directly, the raised portion 2111 will abut against the stop protrusion 1012, preventing the socket body 20 from being pressed. When the plug is inserted into the safety socket, the protective door 21 opens under the push of the plug. During the opening process, the raised portion 2111 moves laterally along with the protective door 21. The raised portion 2111 is now offset from the stop protrusion 1012 and is no longer directly above the stop protrusion 1012. Therefore, when the socket body 20 is pressed, the raised portion 2111 will not abut against the stop protrusion 1012, allowing the socket body 20 to be pressed smoothly.

[0085] Figure 10 This is a schematic diagram of the internal structure of another safety socket provided by the embodiment of the present disclosure. Figure 10 As shown, in this safety socket, a guide groove 1011 is formed on the side wall of the housing 10. The guide groove 1011 has a first side wall and a second side wall that oppose each other. The guide groove 1011 is located on the side wall of the housing 10 and extends in the direction in which the socket body 20 is pressed. A stop protrusion 1012 is located in the guide groove 1011. The stop protrusion 1012 is connected to the first side wall and protrudes toward the second side wall.

[0086] Exemplarily, the guide groove 1011 is located on a side wall of the cylindrical portion 111 of the upper cover 11 .

[0087] The protrusion 2111 extends out from the outer wall of the socket body 20 and is located in the guide groove 1011 .

[0088] Figure 11 This is a schematic diagram of the internal structure of another safety socket provided in an embodiment of the present disclosure. Figure 10 and Figure 11 The two states of the safety socket are shown respectively. Figure 10 and Figure 11 As shown, when the protection door 21 is in the closed state (ie Figure 10 ), the protrusion 2111 is located on the first side wall of the guide groove 1011 and contacts the stop protrusion 1012. When the protection door 21 is in the open state (i.e. Figure 11 ), the protrusion 2111 is located on one side of the second side wall of the guide groove 1011 and is separated from the stop protrusion 1012.

[0089] When the plug has not yet been inserted into the safety socket, the protection door 21 is in a closed state. At this time, the protrusion 2111 is located on the first side wall of the guide groove 1011 and is directly above the stop protrusion 1012. If the socket body 20 is pressed directly, the protrusion 2111 will press against the stop protrusion 1012 and cannot slide down along the guide groove 1011, so that the socket body 20 cannot be pressed. When the plug is inserted into the safety socket, the protection door 21 opens under the push of the plug. During the opening process of the protection door 21, the protrusion 2111 moves laterally with the protection door 21, and the protrusion 2111 moves from the first side wall of the guide groove 1011 to the second side wall of the guide groove 1011. At this time, the protrusion 2111 and the stop protrusion 1012 are staggered with each other, and the protrusion 2111 is no longer directly above the stop protrusion 1012. Therefore, when the socket body 20 is pressed, the protrusion 2111 can slide down along the guide groove 1011 without resting on the stop protrusion 1012, so that the socket body 20 can be pressed smoothly.

[0090] Figure 12: is a cross-sectional view of a safety socket provided by an embodiment of the present disclosure. Figure 12 Section III-III in the figure. Figure 13 yes Figure 12 The enlarged schematic diagram of E in FIG. Figure 13 As shown, the edge of the upper surface 1012 a of the stopping protrusion 1012 close to the second side wall of the guide groove 1011 is not lower than the intersection line of the upper surface 1012 a and the first side wall of the guide groove 1011 .

[0091] This can prevent the socket body 20 from being pressed down by a large external force when the plug has not yet been inserted into the socket body 20 .

[0092] Figure 14 This is a force analysis diagram of a protrusion provided in an embodiment of the present disclosure. Figure 14 The force analysis of the middle protrusion 2111 is based on the assumption that the edge of the upper surface 1012a of the stop protrusion 1012 close to the second side wall is lower than the intersection line of the upper surface 1012a and the first side wall. Figure 14 As shown, after the protrusion 2111 abuts against the stop protrusion 1012, the socket body 20 is continuously pressed, and the force F0 exerted by the upper surface 1012a of the stop protrusion 1012 on the protrusion 2111 has a component force F directed toward the second side wall. x Sum and component force F x Vertical force component F Y , in the force component F x Under the action of , it is possible for the protrusion 2111 to slide along the upper surface 1012a of the stopping protrusion 1012 toward the second side wall and finally separate from the stopping protrusion 1012.

[0093] The edge of the lower surface 1012b of the stop protrusion 1012 near the second side wall of the guide groove 1011 is higher than the intersection line of the lower surface 1012b and the first side wall of the guide groove 1011. Since the protective door 21 will close once the plug is pulled out of the socket body 20, if the plug is pulled out before the socket body 20 is fully retracted, the protrusion 2111 moves upward near the first side wall in the guide groove 1011 until it contacts the lower surface 1012b of the stop protrusion 1012. The protrusion 2111 can then move along the lower surface 1012b of the stop protrusion 1012 toward the second side wall of the guide groove 1011, thereby bypassing the stop protrusion 1012 and successfully reaching directly above the stop protrusion 1012.

[0094] Reference Figure 2The sidewall of the socket body 20 may have a strip groove 22a extending perpendicularly to the extending direction of the guide groove 1011, and the protrusion 2111 is located in the strip groove 22a. During the opening and closing process, the protective door 21 slides perpendicularly to the direction of the plug insertion, and the protrusion 2111 also slides with the protective door 21. By providing the strip groove 22a, the strip groove 22a can limit the protrusion 2111, thereby limiting the sliding direction of the protrusion 2111. In other words, it limits the sliding direction of the protective door 21, making the protective door 21 more stable during the sliding process.

[0095] In the embodiment of the present disclosure, the strip-shaped groove 22 a may be located on a side wall of the jack panel 22 .

[0096] like Figure 12 As shown, the side wall of the housing 10 may have at least one limiting groove 10a, which extends along the pressing direction of the socket body 20. The outer side wall of the socket body 20 may also have a limiting protrusion 221, which is located in the limiting groove 10a.

[0097] When the socket body 20 pops up or is pressed down, the limiting protrusion 221 of the socket body 20 can slide along the limiting slide groove 10a, which can not only play a guiding role to make the socket body 20 move smoothly, but also limit the distance that the socket body 20 can be pressed or popped up relative to the shell 10 through the length of the limiting slide groove 10a.

[0098] The side wall of the housing 10 may be provided with a plurality of limiting sliding grooves 10 a , and the plurality of limiting sliding grooves 10 a may be symmetrically distributed about the guide groove 10 a to make the movement of the socket body 20 more stable.

[0099] like Figure 12 As shown, when the socket body 20 is in the pop-up state, the limiting protrusion 221 can contact the end of the limiting sliding groove 10a, and there is a gap F between the protrusion 2111 and the end of the guide groove 1011 (see Figure 13 ). The socket body 20 switches from the pressed state to the pop-up state, usually with elastic force provided by an elastic element (such as the aforementioned spring 33) in the safety socket, and when the socket body 20 is in the pop-up state, the elastic element is generally still in a compressed state. When the socket body 20 is in the pop-up state, the limiting protrusion 221 maintains contact with the end of the limiting slide 10a, and the elastic force of the elastic element can be balanced by the force on the contact surface between the limiting protrusion 221 and the limiting slide 10a. There is a gap between the protrusion 2111 and the end of the guide groove 1011, and no force is applied. This can prevent the protrusion 2111 from being deformed or broken due to long-term force, thereby preventing it from losing its function, which is beneficial to extending the service life of the safety socket.

[0100] The above description is merely an optional embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the scope of protection of the present disclosure.

Claims

1. A safety socket, characterized in that: It comprises a housing (10) and a socket body (20), wherein the socket body (20) is located in the housing (10) and can be pressed down or popped up relative to the housing (10); The shell (10) has a first stop structure (101), a guide groove (1011) is provided on a side wall of the shell (10), the guide groove (1011) has a first side wall and a second side wall opposite to each other, the guide groove (1011) is located on the side wall of the shell (10) and extends along the pressing direction of the socket body (20), the first stop structure (101) includes a stop protrusion (1012), the stop protrusion (1012) is located in the guide groove (1011), the stop protrusion (1012) is connected to the first side wall and protrudes toward the second side wall; The socket body (20) has a protective door (21), the protective door (21) has a second stop structure (211), the second stop structure (211) includes a protrusion (2111) located on the side of the protective door (21), the protrusion (2111) protrudes relative to the outer side wall of the socket body (20), and the protrusion (2111) is located in the guide groove (1011); When the protection door (21) is in a closed state, the first stop structure (101) cooperates with the second stop structure (211), and the protrusion (2111) is located on one side of the first side wall to prevent the socket body (20) from being pressed relative to the housing (10); When the protection door (21) is in an open state, the first stop structure (101) is separated from the second stop structure (211), the protrusion (2111) is located on one side of the second side wall, and the socket body (20) can be pressed relative to the housing (10).

2. The safety socket according to claim 1, characterized in that: The edge of the upper surface (1012a) of the stopping protrusion (1012) close to the second side wall is not lower than the intersection line of the upper surface (1012a) and the first side wall; An edge of the lower surface (1012b) of the stopping protrusion (1012) close to the second side wall is higher than an intersection line between the lower surface (1012b) and the first side wall.

3. The safety socket according to claim 2, characterized in that: A limiting sliding groove (10a) is provided on the side wall of the shell (10), and the limiting sliding groove (10a) extends along the pressing direction of the socket body (20); The outer side wall of the socket body (20) is further provided with a limiting protrusion (221), and the limiting protrusion (221) is located in the limiting sliding groove (10a).

4. The safety socket according to claim 3, characterized in that: When the socket body (20) is in a pop-up state, the limiting protrusion (221) contacts the end of the limiting sliding groove (10a), and a gap (F) is provided between the protrusion (2111) and the end of the guide groove (1011).

5. The safety socket according to any one of claims 1 to 4, characterized in that: A strip groove (22a) is provided on the side wall of the socket body (20), the extension direction of the strip groove (22a) is perpendicular to the pressing direction of the socket body (20), and the protrusion (2111) is located in the strip groove (22a).

6. The safety socket according to any one of claims 1 to 4, characterized in that: A pop-up mechanism (30) is provided between the bottom of the socket body (20) and the inner wall of the housing (10).

7. The safety socket according to claim 6, characterized in that: The ejection mechanism (30) comprises a column (31), a U-shaped ring (32) and a spring (33); One end of the column (31) is connected to the bottom surface of the socket body (20), and two opposite side surfaces of the column (31) are provided with guide rail grooves (311); The bottom of the U-shaped ring (32) is connected to the housing (10), and both ends of the U-shaped ring (32) are respectively located in the guide rail groove (311); The spring (33) is coaxial or parallel to the column (31), one end of the spring is connected to the column (31), and the other end is connected to the housing (10).

8. The safety socket according to any one of claims 1 to 4, characterized in that: The safety socket has an electrical contact (102), the electrical contact (102) comprising an elastic conductor (1021) and a static contact (1022), the static contact (1022) being located on a side of the elastic conductor (1021) close to the socket body (20); One end of the elastic conductor (1021) is connected to the inner wall of the housing (10), and the other end is connected to the static contact (1022).

9. The safety socket according to claim 8, characterized in that: The safety socket has a socket (231), the socket (231) includes a conductor (2311) and a movable contact (2312), the conductor (2311) is connected to the movable contact (2312), the conductor (2311) is located inside the socket body (20), and the movable contact (2312) is located outside the socket body (20). When the socket body (20) is pressed relative to the housing (10), the movable contact (2312) contacts the static contact (1022); When the socket body (20) bounces up relative to the housing (10), the moving contact (2312) and the static contact (1022) are separated.

Citation Information

Patent Citations

  • Safety socket

    CN102273022A

  • Safety socket

    CN212277494U

  • Electrical outlet safety device

    WO2015182988A1