A double-layer socket structure

Abstract

A double-layer socket structure comprises a shell assembly and a conductive assembly, the shell assembly comprises a first shell, a second shell and a connecting shell, the first shell and the second shell are arranged on the opposite two outer walls of the connecting shell and are formed with a first cavity and a second cavity, at least the conductive assembly is contained in the first cavity and the second cavity, the conductive assembly is used for electrically connecting with a plug inserted on the socket structure, the conductive assembly comprises a first conductive piece and a second conductive piece, the first conductive piece is arranged with first terminal holes for inserting the pins of the plug at intervals along the length direction, the second conductive piece is arranged with second terminal holes for inserting the pins of the plug at intervals along the length direction, the cross sections of the first terminal holes and the second terminal holes are in a decreasing structure from the direction away from the connecting shell to the direction close to the connecting shell.

Description

Technical Field

[0001] This utility model relates to the field of household appliances, and in particular to a double-layer socket structure. Background Technology

[0002] With the advancement of science and technology and the widespread use of various electrical products, sockets have become an indispensable electrical device in daily study and work. However, existing sockets are only single-layered structures, which cannot meet the needs of plug insertion and have low utilization rates. Utility Model Content

[0003] This utility model provides a double-layer socket structure, which aims to solve at least one of the technical problems existing in the prior art.

[0004] This utility model provides a double-layer socket structure. The socket structure includes a housing assembly and a conductive assembly. The housing assembly includes a first housing, a second housing, and a connecting housing. The first housing and the second housing are disposed on two opposite outer walls of the connecting housing and form a first chamber and a second chamber. The first chamber and the second chamber at least accommodate the conductive assembly. The conductive assembly is used to electrically connect with a plug inserted into the socket structure. The conductive component includes a first conductive element and a second conductive element. The first conductive element has first terminal holes spaced apart along its length for the plug pins to be inserted into. The second conductive element has second terminal holes spaced apart along its length for the plug pins to be inserted into. The cross-sections of the first terminal holes and the second terminal holes decrease in size from the direction away from the connecting housing to the direction closer to the connecting housing, so as to abut the pins inserted into the first terminal holes and the second terminal holes.

[0005] In a socket structure according to an embodiment of the present invention, the first housing is provided with a first insertion space on the side opposite to the connecting housing, and the second housing is provided with a second insertion space on the side opposite to the connecting housing. The first insertion space is inclined relative to the extending direction of the connecting housing, and the second insertion space is inclined relative to the extending direction of the connecting housing. The inclination angles of the first insertion space and the inclination angles of the second insertion space are symmetrically arranged relative to the extending direction perpendicular to the connecting housing.

[0006] In a socket structure according to one embodiment of the present invention, the first insertion space is provided with a first upper insertion interface and a second upper insertion interface along its inclined direction, and the positions of the first upper insertion interface and the second upper insertion interface correspond to the positions of the first terminal hole and the second terminal hole; and / or, The second insertion space is provided with a first insertion interface and a second insertion interface along its inclined direction, and the positions of the first insertion interface and the second insertion interface correspond to the positions of the first terminal hole and the second terminal hole.

[0007] In a socket structure according to an embodiment of the present invention, the first housing is provided with a first upper fixing groove and a second upper fixing groove on the side facing the connecting housing, and the second housing is provided with a first lower fixing groove and a second lower fixing groove on the side facing the connecting housing. At least a portion of the first conductive member is fixed in the first upper fixing groove or the first lower fixing groove, and at least a portion of the second conductive member is fixed in the second upper fixing groove or the second lower fixing groove.

[0008] In a socket structure according to one embodiment of the present invention, the first conductive element includes a first connecting piece and a first terminal portion having a first terminal hole. The first connecting piece and the first terminal portion are integrally formed, and the first terminal portion is fixed in the first upper fixing groove or the first lower fixing groove; and / or, The second conductive element includes a second connecting piece and a second terminal portion having a second terminal hole. The second connecting piece and the second terminal portion are integrally formed, and the second terminal portion is fixed in the second upper fixing groove or the second lower fixing groove.

[0009] In a socket structure according to an embodiment of the present invention, there are two of each of the first conductive element and the second conductive element. One of the two first conductive elements is disposed in the first cavity, and the other of the two first conductive elements is disposed in the second cavity. One of the two second conductive elements is disposed in the first cavity, and the other of the two second conductive elements is disposed in the second cavity.

[0010] In a socket structure according to an embodiment of the present invention, the first upper fixing groove and the first lower fixing groove have first fixing notches on both sides along the length direction, and the second upper fixing groove and the second lower fixing groove have second fixing notches on both sides along the length direction. The first connecting piece is engaged in the first fixing notch, and the second connecting piece is engaged in the second fixing notch.

[0011] In a socket structure according to an embodiment of the present invention, the socket structure includes a first protective door and a second protective door. The first plug-in space and the second plug-in space are in a Z-shaped structure. The first protective door is rotatably installed in the first plug-in space, and the second protective door is rotatably installed in the second plug-in space.

[0012] In a socket structure according to an embodiment of the present invention, a first snap-fit ​​protrusion and a second snap-fit ​​protrusion are provided on the two opposite outer walls of the connecting housing. The first housing is snapped into the first snap-fit ​​protrusion, and the second housing is snapped into the second snap-fit ​​protrusion.

[0013] In a socket structure according to an embodiment of the present invention, a first protrusion structure and a second protrusion structure are provided on the two opposite outer walls of the connecting housing. A first socket hole is formed in the first protrusion structure, and a second socket hole is formed in the second protrusion structure. The central axis of the first terminal hole coincides with the central axis of the first socket hole, and the central axis of the second terminal hole coincides with the central axis of the second socket hole. The first conductive element is spaced apart from the first protrusion structure, and the second conductive element is spaced apart from the second protrusion structure.

[0014] The technical solution provided in this application embodiment can include the following beneficial effects: This application designs a double-layer socket structure, which includes a housing assembly and a conductive assembly. The housing assembly includes a first housing, a second housing, and a connecting housing. The conductive assembly is housed in a first chamber formed by the first housing and the connecting housing, and in a second chamber formed by the second housing and the connecting housing. This allows for space saving through the stacking of the upper and lower housings without increasing the product's floor area, nearly doubling the number of effective interfaces within the same floor area, greatly improving space utilization efficiency. The conductive assembly includes a first conductive element and a second conductive element. The first conductive element has first terminal holes spaced apart along its length, and the second conductive element has second terminal holes spaced apart along its length. The cross-sections of the first and second terminal holes decrease towards the connecting housing, ensuring that the holes firmly clamp the plug when it is inserted, guaranteeing electrical connection between the plug and the first and second conductive elements. This effectively reduces the risk of poor contact and achieves a more reliable electrical connection and anti-loosening capability than traditional sockets.

[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the socket structure provided in one embodiment of this application; Figure 2 yes Figure 1 A schematic diagram of the socket structure from another angle; Figure 3 yes Figure 1 An exploded view of the socket structure in the diagram; Figure 4 yes Figure 1 A partial schematic diagram of the socket structure in the diagram; Figure 5 yes Figure 1 A partial schematic diagram of the socket structure in the diagram; Figure 6 yes Figure 3 A schematic diagram of the structure of the first shell in the middle; Figure 7 yes Figure 3 A schematic diagram of the first shell from another angle; Figure 8 yes Figure 3 A schematic diagram of the structure of the second shell in the middle; Figure 9 yes Figure 3 A schematic diagram of the second shell from another angle; Figure 10 yes Figure 3 A schematic diagram of the connecting shell structure in the diagram; Figure 11 yes Figure 3 A schematic diagram of the structure of the first conductive component in the process; Figure 12 yes Figure 3 A schematic diagram of the structure of the second conductive element.

[0018] Explanation of reference numerals in the attached figures: 10. Housing assembly; 11. First housing; 111. First insertion space; 112. First upper fixing groove; 113. Second upper fixing groove; 114. First fixing notch; 115. First upper insertion interface; 116. Second upper insertion interface; 12. Second housing; 121. Second insertion space; 122. First lower fixing groove; 123. Second lower fixing groove; 124. Second fixing notch; 125. First lower insertion interface; 126. Second lower insertion interface; 13. Connecting housing; 131. First protrusion structure; 1311. First insertion hole; 132. Second protrusion structure; 133. First snap-fit ​​protrusion; 134. Second snap-fit ​​protrusion; 20. Conductive component; 21. First conductive element; 21a. First upper conductive element; 21b. First lower conductive element; 211. First terminal hole; 212. First connecting piece; 22. Second conductive element; 22a. Second upper conductive element; 22b. Second lower conductive element; 221. Second terminal hole; 222. Second connecting piece; 30. First protective door; 40. Second protective door. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] It should also be understood that the terminology used in this utility model specification is merely for describing specific aspects of the present application. It is important to understand that terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0022] like Figures 1 to 12 As shown, this application provides a double-layer socket structure, which includes a housing assembly 10 and a conductive component 20. The conductive component 20 is housed within the housing assembly 10 and at least partially exposed from the housing assembly 10 for connection with an external plug or cable.

[0023] In an optional embodiment, the housing assembly 10 includes a first housing 11, a second housing 12, and a connecting housing 13. The first housing 11 and the second housing 12 are disposed on opposite outer walls of the connecting housing 13 and form a first chamber and a second chamber, respectively. At least one conductive component 20 is accommodated in the first chamber and the second chamber. The conductive component 20 is used for electrical connection with a plug inserted into the socket structure. Compared to a traditional single socket panel, which typically only accommodates two to three sockets due to its limited front area, increasing the number of sockets requires lengthening or widening the product, thus occupying more linear space. Therefore, this application saves space by stacking upper and lower double-layer housings, increasing the number of simultaneously usable sockets without increasing the product's planar footprint. This allows the effective number of socket interfaces to almost double within the same planar footprint, greatly improving space utilization efficiency.

[0024] In an optional embodiment, the conductive component 20 includes a first conductive element 21 and a second conductive element 22. The first conductive element 21 has first terminal holes 211 spaced apart along its length, and the second conductive element 22 has second terminal holes 221 spaced apart along its length. The first terminal holes 211 and the second terminal holes 221 are used for the plug pins to be inserted and electrically connected to the plug pins. The cross-sections of the first terminal holes 211 and the second terminal holes 221 decrease in size from the direction away from the connecting housing 13 to the direction closer to the connecting housing 13, so as to abut the plug pins inserted into the first terminal holes 211 and the second terminal holes 221. This not only forms a physical self-locking mechanism, effectively resisting the plug from loosening due to its own wire weight or slight external force, but also ensures a larger and more stable contact area between the plug pins and the first conductive element 21 and the second conductive element 22, significantly reducing contact resistance, thereby reducing heat generation and improving conductivity.

[0025] By adopting the above technical solution, since the first terminal hole 211 and the second terminal hole 221 of this application use terminal holes with decreasing cross-sections, the hole walls of the first terminal hole 211 and the second terminal hole 221 can generate a continuous radial squeezing force on the pin when the pin is inserted, forming a tightening effect as it is inserted. This creates a physical self-locking mechanism, effectively resisting the loosening of the plug due to the weight of its own wire or slight external force. It also ensures a larger and more stable contact area between the pin and the conductive part, significantly reducing contact resistance, thereby reducing heat generation and improving conductivity. This solves the problem that the elasticity of traditional spring-type contacts may weaken after repeated insertion and removal, leading to increased contact resistance with the pin, which can easily cause heat generation, sparks, or even loose connections and power outages. Furthermore, the plug is also easily loosened by external force. In addition, this application uses a double-layer three-dimensional structure design, stacking the first and second chambers vertically, so that the number of effective interfaces of the socket can almost double within the same plane area, greatly improving space utilization efficiency.

[0026] In an optional embodiment, the first housing 11 has a first insertion space 111 on the side opposite to the connecting housing 13, and the second housing 12 has a second insertion space 121 on the side opposite to the connecting housing 13. The first insertion space 111 is inclined relative to the extending direction of the connecting housing 13, and the second insertion space 121 is also inclined relative to the extending direction of the connecting housing 13. The inclination angles of the first insertion space 111 and the second insertion space 121 are symmetrically arranged relative to the extending direction perpendicular to the connecting housing 13. This not only effectively reduces the size of the socket structure in the width direction, making the final socket structure smaller and more regular, meeting standard size requirements, and facilitating installation and storage, but also increases the electrical distance between the first terminal hole 211 and the second terminal hole 221 in the first and second chambers, improving the safety performance of the socket structure.

[0027] In an optional embodiment, the first plug-in space 111 is provided with a first upper plug-in interface 115 and a second upper plug-in interface 116 along its inclined direction. The positions of the first upper plug-in interface 115 and the second upper plug-in interface 116 correspond to the positions of the first terminal hole 211 and the second terminal hole 221, so that the pins of the plug can be inserted from the first plug-in space 111 into the first upper plug-in interface 115 and the second upper plug-in interface 116 and then electrically connected to the first terminal hole 211 and the second terminal hole 221. This forms a staggered and obliquely arranged queue, so that when the plug pins are inserted into the first upper plug-in interface 115 and the second upper plug-in interface 116, the plug will naturally position itself along the inclined direction of the plug-in space. This successfully achieves the simultaneous, safe, stable, and non-interfering use of multiple plugs in a very compact volume.

[0028] In an optional embodiment, the second insertion space 121 is provided with a first lower insertion interface 125 and a second lower insertion interface 126 along its inclined direction. The positions of the first lower insertion interface 125 and the second lower insertion interface 126 correspond to the positions of the first terminal hole 211 and the second terminal hole 221, so that the pins of the plug can be inserted from the second insertion space 121 into the first lower insertion interface 125 and the second lower insertion interface 126 and then electrically connected to the first terminal hole 211 and the second terminal hole 221. This fundamentally solves the problem of enabling multiple plugs to be used simultaneously, safely and conveniently in a very small footprint.

[0029] In an optional embodiment, the first housing 11 has a first upper fixing groove 112 and a second upper fixing groove 113 on the side facing the connecting housing 13, and the second housing 12 has a first lower fixing groove 122 and a second lower fixing groove 123 on the side facing the connecting housing 13. At least a portion of the first conductive member 21 is fixed in the first upper fixing groove 112 or the first lower fixing groove 122, and at least a portion of the second conductive member 22 is fixed in the second upper fixing groove 113 or the second lower fixing groove 123, so as to provide a custom-made slot for the first conductive member 21 and the second conductive member 22, ensuring that the first conductive member 21 and the second conductive member 22 can be accurately fixed in their designed positions without swaying left and right or rotating, and also ensuring the alignment accuracy of the first terminal hole 211 and the second terminal hole 221 with the first upper insertion interface 115, the second upper insertion interface 116, the first lower insertion interface 125 and the second lower insertion interface 126 in the upper and lower layers.

[0030] In one optional embodiment, there are two first conductive elements 21 and two second conductive elements 22. One of the two first conductive elements 21 is disposed in the first cavity, and the other of the two first conductive elements 21 is disposed in the second cavity. Similarly, one of the two second conductive elements 22 is disposed in the first cavity, and the other of the two second conductive elements 22 is disposed in the second cavity.

[0031] For example, the first conductive element 21 includes a first upper conductive element 21a and a first lower conductive element 21b, and the second conductive element 22 includes a second upper conductive element 22a and a second lower conductive element 22b. At least a portion of the first upper conductive element 21a and the second upper conductive element 22a is housed in a first cavity, and at least a portion of the first lower conductive element 21b and the second lower conductive element 22b is housed in a second cavity. The first upper conductive element 21a and the first lower conductive element 21b can be separate structures, or they can be a bent integral structure. Similarly, the second lower conductive element 22b and the second upper conductive element 22a can be separate structures, or they can be a bent integral structure; this application does not impose any limitations.

[0032] In an optional embodiment, the first conductive element 21 includes a first connecting piece 212 and a first terminal portion having a first terminal hole 211. The first connecting piece 212 and the first terminal portion are integrally formed, fundamentally eliminating the possibility of failure due to connection point failure, greatly enhancing the overall mechanical strength and service life of the first conductive element 21; it also ensures that current can pass smoothly, reduces unnecessary energy loss, improves electrical safety and energy efficiency, simplifies the production process, improves production efficiency, and ensures that each first conductive element 21 has completely consistent quality and performance. The first terminal portion is fixed in the first upper fixing groove 112 or the first lower fixing groove 122 to ensure the stable fixation of the first conductive element 21.

[0033] In an optional embodiment, the second conductive element 22 includes a second connecting piece 222 and a second terminal portion having a second terminal hole 221. The second connecting piece 222 and the second terminal portion are integrally formed, fundamentally eliminating the possibility of failure due to connection point failure, greatly enhancing the overall mechanical strength and service life of the second conductive element 22; it also ensures that current can pass smoothly, reduces unnecessary energy loss, improves electrical safety and energy efficiency, simplifies the production process, improves production efficiency, and ensures that each second conductive element 22 has completely consistent quality and performance. The second terminal portion is fixed in the second upper fixing groove 113 or the second lower fixing groove 123 to ensure the stable fixation of the first conductive element 21.

[0034] In an optional embodiment, the first upper fixing groove 112 and the first lower fixing groove 122 each have a first fixing notch 114 on both sides along the length direction, and the second upper fixing groove 113 and the second lower fixing groove 123 each have a second fixing notch 124 on both sides along the length direction. The first connecting piece 212 is engaged in the first fixing notch 114, and the second connecting piece 222 is engaged in the second fixing notch 124, so that the first connecting piece 212 and the second connecting piece 222 can be firmly locked from both front and rear directions, completely eliminating any possibility of the first conductive component 21 and the second conductive component 22 moving along their length direction. At the same time, during assembly, the worker can clearly engage the first connecting piece 212 and the second connecting piece 222 into the first fixing notch 114 and the second fixing notch 124, ensuring that each first conductive component 21 and the second conductive component 22 is in the absolutely correct design position, and also ensuring that the products produced in batches have a high degree of consistency, and that the alignment of all the sockets is accurate.

[0035] In one optional embodiment, the socket structure includes a first protective door 30 and a second protective door 40. The first plug-in space 111 and the second plug-in space 121 are in a Z-shaped structure. The first protective door 30 is rotatably installed in the first plug-in space 111 and is used to open or close the first upper plug-in interface 115 and the second upper plug-in interface 116. The second protective door 40 is rotatably installed in the second plug-in space 121 and is used to open or close the first lower plug-in interface 125 and the second lower plug-in interface 126. This allows the first terminal hole 211 and the second terminal hole 221 to be electrically connected to the plugs of the first upper plug-in interface 115 and the second upper plug-in interface 116, or the first lower plug-in interface 125 and the second lower plug-in interface 126. It also prevents users from touching the exposed first terminal hole 211 and the second terminal hole 221, thereby avoiding safety issues.

[0036] In an optional embodiment, the two opposite outer walls of the connecting housing 13 are provided with a first snap-fit ​​protrusion 133 and a second snap-fit ​​protrusion 134. The first housing 11 snaps into the first snap-fit ​​protrusion 133, and the second housing 12 snaps into the second snap-fit ​​protrusion 134. This makes the socket structure of this application maintainable. If a fault occurs inside the socket structure, technicians can carefully pry open the buckles, open the first housing 11 or the second housing 12 to repair or replace the damaged parts, and then re-fasten them. This also extends the service life of the product and conforms to the concept of environmental protection and sustainable development.

[0037] In an optional embodiment, a first protrusion structure 131 and a second protrusion structure 132 are provided on the two opposite outer walls of the connecting housing 13. A first insertion hole 1311 is formed in the first protrusion structure 131, and a second insertion hole is formed in the second protrusion structure 132. The central axis of the first terminal hole 211 coincides with the central axis of the first insertion hole 1311, and the central axis of the second terminal hole 221 coincides with the central axis of the second insertion hole. The first conductive element 21 is spaced apart from the first protrusion structure 131, and the second conductive element 22 is spaced apart from the second protrusion structure 132, so that the first insertion hole 1311 and the second insertion hole can provide a precise guiding channel and accommodating space for the pins.

[0038] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0039] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A double-layer socket structure, characterized in that, The socket structure includes a housing assembly and a conductive component. The housing assembly includes a first housing, a second housing, and a connecting housing. The first housing and the second housing are disposed on two opposite outer walls of the connecting housing and form a first chamber and a second chamber. The first chamber and the second chamber at least accommodate the conductive component, which is used to electrically connect with a plug inserted into the socket structure. The conductive component includes a first conductive element and a second conductive element. The first conductive element has first terminal holes spaced apart along its length for the plug pins to be inserted into. The second conductive element has second terminal holes spaced apart along its length for the plug pins to be inserted into. The cross-sections of the first terminal holes and the second terminal holes decrease in size from the direction away from the connecting housing to the direction closer to the connecting housing, so as to abut the pins inserted into the first terminal holes and the second terminal holes.

2. The socket structure according to claim 1, characterized in that, The first housing has a first insertion space on the side opposite to the connecting housing, and the second housing has a second insertion space on the side opposite to the connecting housing. The first insertion space is inclined relative to the extension direction of the connecting housing, and the second insertion space is inclined relative to the extension direction of the connecting housing. The inclination angles of the first insertion space and the second insertion space are symmetrical relative to the extension direction perpendicular to the connecting housing.

3. The socket structure according to claim 2, characterized in that, The first insertion space is provided with a first upper insertion interface and a second upper insertion interface along its inclined direction, the positions of the first upper insertion interface and the second upper insertion interface corresponding to the positions of the first terminal hole and the second terminal hole; and / or, The second insertion space is provided with a first insertion interface and a second insertion interface along its inclined direction, and the positions of the first insertion interface and the second insertion interface correspond to the positions of the first terminal hole and the second terminal hole.

4. The socket structure according to claim 3, characterized in that, The first housing has a first upper fixing groove and a second upper fixing groove on the side facing the connecting housing, and the second housing has a first lower fixing groove and a second lower fixing groove on the side facing the connecting housing. At least a portion of the first conductive element is fixed in the first upper fixing groove or the first lower fixing groove, and at least a portion of the second conductive element is fixed in the second upper fixing groove or the second lower fixing groove.

5. The socket structure according to claim 4, characterized in that, The first conductive element includes a first connecting piece and a first terminal portion having a first terminal hole. The first connecting piece and the first terminal portion are integrally formed, and the first terminal portion is fixed in the first upper fixing groove or the first lower fixing groove; and / or, The second conductive element includes a second connecting piece and a second terminal portion having a second terminal hole. The second connecting piece and the second terminal portion are integrally formed, and the second terminal portion is fixed in the second upper fixing groove or the second lower fixing groove.

6. The socket structure according to claim 5, characterized in that, The number of the first conductive element and the second conductive element are both two, one of the two first conductive elements is disposed in the first cavity, and the other of the two first conductive elements is disposed in the second cavity. One of the two second conductive elements is disposed in the first cavity, and the other of the two second conductive elements is disposed in the second cavity.

7. The socket structure according to claim 5, characterized in that, The first upper fixing groove and the first lower fixing groove each have a first fixing notch on both sides along the length direction, and the second upper fixing groove and the second lower fixing groove each have a second fixing notch on both sides along the length direction. The first connecting piece is engaged in the first fixing notch, and the second connecting piece is engaged in the second fixing notch.

8. The socket structure according to claim 2, characterized in that, The socket structure includes a first protective door and a second protective door. The first plug-in space and the second plug-in space are in a Z-shaped structure. The first protective door is rotatably installed in the first plug-in space, and the second protective door is rotatably installed in the second plug-in space.

9. The socket structure according to claim 1, characterized in that, The connecting housing has a first snap-fit ​​protrusion and a second snap-fit ​​protrusion on its two opposite outer walls. The first housing snaps into the first snap-fit ​​protrusion, and the second housing snaps into the second snap-fit ​​protrusion.

10. The socket structure according to claim 1, characterized in that, The connecting housing has a first protrusion structure and a second protrusion structure on its two opposite outer walls. A first insertion hole is formed in the first protrusion structure and a second insertion hole is formed in the second protrusion structure. The central axis of the first terminal hole coincides with the central axis of the first insertion hole, and the central axis of the second terminal hole coincides with the central axis of the second insertion hole. The first conductive element is spaced apart from the first protrusion structure, and the second conductive element is spaced apart from the second protrusion structure.

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