Safety door assembly and socket
By designing the base and elastic parts as integrated structure safety door components, the problems of complex assembly and safety hazards in the prior art are solved, and assembly simplification and safety performance improvement are achieved.
Patent Information
- Application Number
- CN202421781995.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-07-25
AI Technical Summary
The existing safety door assembly is complex during the assembly process and has safety risks, and the spring-driven structure has a risk of falling off.
The safety door assembly with a base and elastic member is integrated into a one-piece structure. The elastic force provided by the elastic member drives the safety door to switch between the open and closed positions, simplifying the assembly process and reducing the risk of shedding.
It realizes simplification of assembly operations and improvement of safety performance, reduces the risk of elastic parts falling off during use, and improves the overall safety of safety door components.
Smart Images

Figure CN222953405U_ABST
Abstract
Description
Technical Field
[0001] The embodiments of the present application relate to the technical field of electrical equipment, and in particular to a safety door assembly and a socket. Background Art
[0002] The socket is usually provided with a safety door assembly, which is used to cover the socket hole when the plug is not inserted, so as to prevent foreign objects from entering the socket and causing safety hazards. In the related art, the safety door assembly usually uses a spring as a driving structure, which is complicated to assemble and has safety hazards. Utility Model Content
[0003] In view of this, the embodiments of the present application hope to provide a safety door assembly and a socket with a simple structure and good safety.
[0004] A first aspect of an embodiment of the present application provides a safety door assembly, comprising: a base having a socket, wherein the socket penetrates the base along a first direction; a safety door arranged on one side of the base along the first direction, wherein the safety door has an open position exposing the socket and a closed position covering the socket; an elastic member for providing an elastic force, wherein the elastic force is used to drive the safety door to move relative to the base to switch between the open position and the closed position, wherein the elastic member and the base are an integral structure.
[0005] In some embodiments, the elastic member includes at least one elastic arm.
[0006] In some embodiments, the base and the elastic member are made of elastic insulating material.
[0007] In some embodiments, a sliding groove is formed on one side of the base along the first direction, at least a portion of the safety door is located in the sliding groove and slides with the sliding groove along the second direction, the elastic member is arranged at one end of the sliding groove along the second direction, and the first direction is perpendicular to the second direction.
[0008] In some embodiments, the elastic member includes at least two elastic arms, and the at least two elastic arms are spaced apart along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other.
[0009] In some embodiments, the sliding groove has an opening at one end away from the elastic member, and the safety door extends from one end away from the elastic member to the outside of the sliding groove through the opening; and / or the safety door protrudes toward one end of the elastic member to form a bump, and the bump abuts against the elastic member.
[0010] In some embodiments, the base has a stopper, and in the closed position, the safety door abuts against the stopper.
[0011] In some embodiments, a side surface of the base protrudes toward the safety door to form the stop portion, and a side surface of the safety door protrudes toward the base to form a supporting portion. In the closed position, the supporting portion abuts against the stop portion.
[0012] In some embodiments, the safety door has a hollow portion and a guide slope, the hollow portion is arranged corresponding to the hole, the guide slope is arranged on the side of the hollow portion facing the elastic member, and the guide slope is inclined from an end away from the base to an end close to the base toward a direction away from the elastic member. In the open position, the hollow portion is opposite to the hole to expose the hole, and in the closed position, the guide slope covers the hole.
[0013] The second aspect of the embodiment of the present application provides a socket, which includes: a panel, a wiring terminal and at least one safety door assembly described in the first aspect of the embodiment of the present application, the panel is arranged on the side of the safety door facing away from the base, the wiring terminal is arranged on the side of the base facing away from the safety door, the panel has a socket hole, and on the projection plane perpendicular to the first direction, the projections of the socket hole, the jack and the wiring terminal at least partially overlap.
[0014] In the safety door assembly and the socket of the embodiment of the present application, the elastic member and the base are an integrated structure, so that in the actual assembly process, it is only necessary to place the safety door at the corresponding position of the base, and the assembly operation is relatively simple. In addition, the elastic member and the base are an integrated structure, which can reduce the risk of the elastic member falling off during use and improve safety performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the axial structure of the safety door assembly of an embodiment of the present application;
[0016] Figure 2 An exploded schematic diagram of a safety door assembly according to an embodiment of the present application;
[0017] Figure 3 A schematic diagram of a safety door assembly of an embodiment of the present application in which the safety door is in an open position;
[0018] Figure 4 for Figure 3 AA section diagram of the middle safety door assembly;
[0019] Figure 5 A schematic diagram of a safety door assembly of an embodiment of the present application in which the safety door is in a closed position;
[0020] Figure 6 for Figure 5 BB section diagram of the middle safety door assembly;
[0021] Figure 7 This is an exploded schematic diagram of the socket according to an embodiment of the present application.
[0022] Description of Reference Numerals
[0023] 100. Safety door assembly; 1. Base; 1a. Socket; 11. Sliding groove; 11a. Opening; 11b. Through hole; 12. Mounting portion; 13. First limit block; 2. Safety door; 2a. Hollow portion; 21. Protrusion; 22. Second limit block; 23. Guide slope; 3. Elastic member; 31. Elastic arm; 200. Panel; 200a. Socket hole. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0025] The various specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction, for example, different embodiments and technical solutions can be formed by combining different specific technical features. In order to avoid unnecessary repetition, the various possible combinations of the specific technical features in the utility model will not be described separately.
[0026] In the following description, the terms "first\second\..." are only used to distinguish different objects, and do not mean that the objects have the same or related points. It should be understood that the directions "above", "below", "outside" and "inside" are all directions in normal use, and the directions "left" and "right" refer to the left and right directions shown in the specific corresponding schematic diagrams, which may be the left and right directions in normal use or not.
[0027] It should be noted that the terms "comprises", "includes" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element. "Multiple" means greater than or equal to two.
[0028] In the description of the present application, the orientation or position relationship of "first direction", "second direction" and "third direction" is based on the orientation or position relationship shown in the accompanying drawings, wherein the "first direction" is the direction indicated by the arrow L1 in the accompanying drawings, the "second direction" is the direction indicated by the arrow L2 in the accompanying drawings, and the "third direction" is the direction indicated by the arrow L3 in the accompanying drawings. It should be understood that these orientation terms 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, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0029] The embodiment of the present application provides a safety door assembly, which can be applied to sockets, including but not limited to fixed sockets, mobile sockets, external discharge sockets on various electronic devices, etc. In addition, the safety door assembly can also be applied to any electronic device equipped with a socket and with shielding requirements, without limitation.
[0030] Taking the socket as an example, the safety door assembly is used to cover the socket hole when the plug is not inserted to prevent foreign objects, especially conductive foreign objects, from entering the socket and contacting the live mechanism (such as the wiring terminal) to create a safety hazard. In the related art, a spring is usually used to drive the movement of the safety door to open or close the socket hole. During the assembly process, the spring needs to be installed first and then the safety door is installed. Since the space inside the socket is relatively small, the assembly operation is more troublesome. In addition, in order to provide sufficient elastic force to drive the movement of the safety door, the related art usually chooses to use a spring made of metal material, and the spring is usually connected to the socket by means of snap-on connection, etc., which has the risk of falling off, and may cause a circuit break after falling off, so there is a safety hazard.
[0031] In view of the above problems, a safety door assembly of the present application is proposed, referring to Figure 1 and Figure 2 The safety door assembly 100 of the embodiment of the present application includes a base 1, a safety door 2 and an elastic member 3.
[0032] The base 1 has an insertion hole 1 a which penetrates the base 1 along a first direction.
[0033] The specific structure of the base 1 is not limited, and it is mainly used to install the safety door 2 to the external structure. Taking the socket as an example, the base 1 is used to connect with the panel of the socket, so that the safety door 2 is installed behind the socket panel. Those skilled in the art can make specific settings according to actual use requirements. As an example, the base 1 can be roughly a plate-shaped structure.
[0034] The socket 1a is mainly used for inserting a pin to achieve circuit conduction. Therefore, in this embodiment, the first direction is parallel to the insertion direction of the pin, and those skilled in the art can determine it specifically according to actual usage requirements.
[0035] The number of jacks 1a on the base 1 is not limited, such as one, two, three, etc. Taking the socket as an example, the arrangement of the jacks 1a on the base 1 should correspond to the arrangement of the socket holes on the socket panel, so that the plug can pass through the socket holes and the jacks 1a in sequence to achieve electrical connection. Taking a common three-hole socket as an example, a group of socket holes includes a neutral wire hole, a live wire hole and a ground wire hole. Since the ground wire hole generally does not require safety measures, the number of jacks 1a on the base 1 can be two, corresponding to the neutral wire hole and the live wire hole on the socket panel. Of course, there can also be only one jack 1a on the base 1. In other words, the safety door assembly 100 can be used only to block one hole. In actual use, a safety door assembly 100 can be set at each position that needs to be blocked. Alternatively, there can be more jacks 1a on the base 1, corresponding to multiple groups of socket holes on the socket.
[0036] The safety door 2 is arranged on one side of the base 1 along the first direction, referring to Figure 3-Figure 6 , the safety door 2 has an open position exposing the insertion hole 1a and a closed position covering the insertion hole 1a.
[0037] The safety door 2 can be specifically arranged on the side of the base 1 away from the live mechanism along the first direction. Still taking the socket as an example, the safety door 2 can be on the side of the base 1 facing the panel of the socket, and the terminal can be arranged on the side of the base 1 away from the safety door 2 and the panel.
[0038] Reference Figure 3 and Figure 4 When the safety door 2 is in the open position, the socket 1a is exposed. The exposure here specifically means that on the projection plane perpendicular to the first direction, the projection of the safety door 2 and the projection of the socket 1a at least partially do not overlap, and the non-overlapping portion can at least accommodate the pin of the plug, thereby allowing the pin to pass through the socket 1a.
[0039] Reference Figure 5 and Figure 6 When the safety door 2 is in the closed position, the socket 1a is blocked. The blocking here specifically means that on the projection plane perpendicular to the first direction, the projection of the safety door 2 and the projection of the socket 1a completely overlap.
[0040] It is understood that when the plug needs to be inserted, the safety door 2 is in the open position, so that the plug pin can pass through the jack 1a to connect with the live mechanism. When the plug does not need to be inserted, the safety door 2 is in the closed position, so as to prevent foreign objects from contacting the live mechanism.
[0041] The elastic member 3 is used to provide an elastic force, and the elastic force is used to drive the safety door 2 to move relative to the base 1 to switch between an open position and a closed position.
[0042] The relative movement modes between the safety door 2 and the base 1 include, but are not limited to, sliding, rotating or a combination of multiple movement modes, etc., which can be specifically determined by those skilled in the art according to actual use requirements.
[0043] When the safety door 2 moves from the closed position to the open position, the safety door 2 abuts against the elastic member 3, causing the elastic member 3 to be compressed to generate an elastic force. At this time, the pin is inserted into the socket 1a, thereby keeping the safety door 2 in the open position. When the pin is removed from the socket 1a, the elastic force is released, thereby driving the safety door 2 back to the closed position, achieving automatic reset. In the closed position, the safety door 2 and the elastic member 3 can also abut against each other, and the elastic member 3 can still be in a compressed state, thereby stably keeping the safety door 2 in the closed state.
[0044] The elastic member 3 and the base 1 are an integrated structure. Specifically, the base 1 and the elastic member 3 are prepared by an integrated molding method. The specific preparation method can be determined by technical personnel in this field according to the specific structure and material of the base 1 and the elastic member 3, and there is no limitation on this.
[0045] In this embodiment, the elastic member 3 and the base 1 are an integrated structure, so that in the actual assembly process, it is only necessary to place the safety door 2 at the corresponding position of the base 1, and the assembly operation is relatively simple. In addition, the elastic member 3 and the base 1 are an integrated structure, which can reduce the risk of the elastic member 3 falling off during use and improve safety performance.
[0046] In some embodiments, the elastic member 3 and the base 1 are made of elastic insulating material. One advantage of using elastic insulating material is that even if the elastic member 3 is damaged and falls off during actual use and contacts with a live mechanism, it will not cause a circuit break, and the safety is better. Another advantage is that the elastic member 3 and the base 1 can be prepared in an integrated manner such as injection molding, which is less difficult and less costly. As an example, the elastic member 3 and the base 1 are made of plastic.
[0047] In some other embodiments, the elastic member 3 and the base 1 may be made of materials other than elastic insulating materials, such as metal. In this case, an insulating structure may be provided between the base 1 and the charged mechanism to ensure safety performance.
[0048] In some embodiments, reference may still be made to Figure 1 and Figure 2, the elastic member 3 includes at least one elastic arm 31. Compared with the spring structure commonly used in the art, one advantage of using the elastic arm 31 is that the preparation difficulty is relatively low, especially when the elastic member 3 and the base 1 are prepared by, for example, integral molding, demoulding is relatively convenient. Another advantage is that the structural strength of the elastic arm 31 is relatively high, and the risk of breakage during use is low. Another advantage is that the elastic arm 31 can provide a relatively large elastic force, and the reliability of driving the safety door 2 to move is relatively high.
[0049] As an example, the elastic arm 31 may be roughly in a V-shaped structure, one end of which is connected to the base 1 , and the other end is used to abut against the safety door 2 .
[0050] The number of the elastic arms 31 may be one or more, and there is no limitation on this.
[0051] In some other embodiments, the elastic member 3 may also be a spring, an elastic block or any other structure capable of providing elastic force.
[0052] In some embodiments, reference Figure 2 A sliding groove 11 is formed on one side of the base 1 along the first direction, at least a portion of the safety door 2 is located in the sliding groove 11, and slides with the sliding groove 11 along the second direction, the elastic member 3 is arranged at one end of the sliding groove 11 along the second direction, and the first direction is perpendicular to the second direction.
[0053] In this embodiment, the safety door 2 slides along the second direction to switch between the open position and the closed position. In this way, the overall thickness of the safety door assembly 100 along the first direction can be reduced, and the structure of the safety door assembly 100 can be more compact, which is convenient for adapting to different installation requirements.
[0054] The second direction may be any direction perpendicular to the first direction, and there is no limitation on this. As an example, in the case where the base 1 has two sockets 1a, the second direction may be parallel to the arrangement direction of the two sockets 1a. Of course, the second direction may also be perpendicular to the arrangement direction of the two sockets 1a, or form any angle with the arrangement direction of the two sockets 1a.
[0055] In some embodiments, reference Figure 2 The elastic member 3 includes at least two elastic arms 31, and the at least two elastic arms 31 are arranged at intervals along the third direction. The first direction, the second direction and the third direction are perpendicular to each other.
[0056] In this way, the elastic force applied by the elastic member 3 to the safety door 2 can be relatively evenly distributed along the third direction, thereby reducing the possibility of the safety door 2 tilting when sliding along the second direction and improving the sliding smoothness of the safety door 2.
[0057] In some embodiments, reference Figure 2 A through hole 11b is provided at the bottom of the sliding groove 11 on one side close to the elastic arm 31, and at least a portion of the elastic arm 31 extends through the through hole 11b to the outside of the sliding groove 11 along the first direction. In this way, while ensuring that the elastic arm 31 has a sufficient length (so that it can provide sufficient elastic force), the overall thickness of the sliding groove 11 and the base 1 along the first direction is reduced, further improving the compactness of the structure of the safety door assembly 100.
[0058] In some embodiments, reference Figure 2 The end of the sliding groove 11 away from the elastic member 3 has an opening 11a, and the end of the safety door 2 away from the elastic member 3 extends out of the sliding groove 11 through the opening 11a. In this way, during the actual assembly process, the operator can hold the end of the safety door 2 away from the elastic member 3 to assemble the safety door 2 into the sliding groove 11, thereby simplifying the assembly operation.
[0059] In some embodiments, reference Figure 2 The safety door 2 is protruded toward one end of the elastic member 3 to form a convex block 21, and the convex block 21 abuts against the elastic member 3. In this way, the stability of the abutment between the safety door 2 and the elastic member 3 can be improved, thereby improving the reliability of the safety door 2.
[0060] As mentioned above, the elastic member 3 may include at least two elastic arms 31 . In this case, the protrusions 21 may be arranged in a one-to-one correspondence with the elastic arms 31 , or one protrusion 21 may abut against a plurality of elastic arms 31 at the same time.
[0061] It should be noted that, in this embodiment, no matter in the open position or the closed position, the protrusion 21 abuts against the elastic member 3 , thus further improving reliability.
[0062] In some embodiments, reference Figure 2 At least one mounting portion 12 is formed on each of the two opposite sides of the base 1 along the first direction, and the mounting portion 12 is used to connect with an external structure. In this way, a stable connection between the base 1 and the external structure can be achieved, the possibility of the base 1 and the safety door 2 falling off can be reduced, and the reliability and safety of the safety door assembly 100 can be improved.
[0063] Taking the socket as an example, the mounting portion 12 is used to connect to the panel of the socket. The specific structure of the mounting portion 12 is not limited, such as a card block, a card slot, a threaded hole, etc., and those skilled in the art can make specific arrangements according to actual assembly requirements. The structures of the mounting portions 12 on the opposite sides of the base 1 along the first direction can be the same or different, and there is no limitation on this.
[0064] In some embodiments, reference Figure 2 , Figure 4 and Figure 6A side surface of the base 1 facing the safety door 2 protrudes to form a first limit block 13, and a side surface of the safety door 2 facing the base 1 protrudes to form a second limit block 22. In the closed position, the elastic member 3 provides an elastic force to make the first limit block 13 abut against the second limit block 22.
[0065] In this embodiment, the provision of the first limit block 13 and the second limit block 22 helps to accurately and stably maintain the safety door 2 in the closed position when there is no external force or the external force is relatively small, further improving the reliability and safety of the safety door assembly 100.
[0066] In some embodiments, reference Figure 2-Figure 6 The safety door 2 has a hollow portion 2a and a guide slope 23. The hollow portion 2a is arranged corresponding to the insertion hole 1a, and the guide slope 23 is arranged on the side of the hollow portion 2a facing the elastic member 3. The guide slope 23 is inclined from the end away from the base 1 to the end close to the base 1 in the direction away from the elastic member 3.
[0067] Reference Figure 4 In the open position, the hollow portion 2a is opposite to the insertion hole 1a to expose the insertion hole 1a, referring to Figure 6 , in the closed position, the guide slope 23 covers the insertion hole 1a.
[0068] In this embodiment, a guide slope 23 is provided on the safety door 2. In the closed position, the plug can be directly pressed against the guide slope 23, and then a force along the first direction is applied. Since the guide slope 23 is inclined from the end away from the base 1 to the end close to the base 1 in the direction away from the elastic member 3, it can convert the above-mentioned force into a force toward the elastic member 3, thereby driving the safety door 2 to move toward the elastic member 3 so that the safety door 2 is switched to the open position and the elastic member 3 is compressed. In this way, the convenience of use of the safety door assembly 100 can be improved.
[0069] In this embodiment, the position and number of the hollow portions 2a may correspond to the position and number of the jacks 1a on the base 1, and no specific limitation is imposed on this. In the case where there are multiple hollow portions 2a on the panel, each hollow portion 2a is provided with a guide slope 23 on one side facing the elastic member 3.
[0070] The embodiment of the present application also provides a socket, referring to Figure 7 The socket includes a panel 200, a terminal block (not shown) and at least one safety door assembly 100 as described in any of the above embodiments.
[0071] The panel 200 is arranged on the side of the safety door assembly 100 facing away from the base 1, and the wiring terminal is arranged on the side of the base 1 facing away from the safety door 2. The panel has a socket hole 200a. On the projection plane perpendicular to the first direction, the projections of the socket hole 200a, the socket 1a and the wiring terminal at least partially overlap. In this way, in the open position, the pin of the plug can pass through the socket hole 200a and the socket 1a in turn and be connected to the wiring terminal.
[0072] The specific structure of the panel and the terminal block is not limited. The panel 200 may have multiple groups of socket holes (multiple socket holes corresponding to one plug are one group of socket holes), and each group of socket holes may correspond to one safety door assembly 100. Of course, each socket hole in a group of socket holes may correspond to one safety door assembly 100.
[0073] The socket of the embodiment of the present application has all the advantages of the safety door assembly 100 described in any of the above embodiments, which will not be repeated here.
[0074] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic representation of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.
[0075] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A safety door assembly, characterized in that: The safety door assembly comprises: A base having an insertion hole, wherein the insertion hole penetrates the base along a first direction; A safety door is arranged on one side of the base along the first direction, and the safety door has an open position exposing the jack and a closed position covering the jack; An elastic member is used to provide an elastic force, wherein the elastic force is used to drive the safety door to move relative to the base to switch between the open position and the closed position, and the elastic member and the base are an integrated structure.
2. The safety door assembly according to claim 1, characterized in that: The elastic member includes at least one elastic arm.
3. The safety door assembly according to claim 1, characterized in that: The base and the elastic member are made of elastic insulating material.
4. The safety door assembly according to any one of claims 1 to 3, characterized in that: A sliding groove is formed on one side of the base along the first direction, at least a portion of the safety door is located in the sliding groove and slidingly cooperates with the sliding groove along the second direction, the elastic member is arranged at one end of the sliding groove along the second direction, and the first direction is perpendicular to the second direction.
5. The safety door assembly according to claim 4, characterized in that: The elastic member includes at least two elastic arms, and the at least two elastic arms are arranged at intervals along a third direction. The first direction, the second direction and the third direction are perpendicular to each other.
6. The safety door assembly according to claim 4, characterized in that: One end of the sliding groove away from the elastic member has an opening, and one end of the safety door away from the elastic member extends out of the sliding groove through the opening; and / or One end of the safety door protrudes toward the elastic member to form a convex block, and the convex block abuts against the elastic member.
7. The safety door assembly according to claim 4, characterized in that: At least one mounting portion is formed on each of the two opposite sides of the base along the second direction, and the mounting portion is used to be connected to an external structure.
8. The safety door assembly according to any one of claims 1 to 3, characterized in that: A side surface of the base protrudes toward the safety door to form a first limit block, and a side surface of the safety door protrudes toward the base to form a second limit block. In the closed position, the elastic member provides an elastic force to make the first limit block abut against the second limit block.
9. The safety door assembly according to any one of claims 1 to 3, characterized in that: The safety door has a hollow portion and a guide slope, the hollow portion is arranged corresponding to the insertion hole, and the guide slope is arranged on a side of the hollow portion facing the elastic member. The guide slope is inclined from an end away from the base to an end close to the base in a direction away from the elastic member. In the open position, the hollow portion is opposite to the insertion hole to expose the insertion hole. In the closed position, the guide slope covers the insertion hole.
10. A socket, characterized in that: The socket comprises: A panel, a wiring terminal and at least one safety door assembly according to any one of claims 1 to 9, wherein the panel is arranged on a side of the safety door facing away from the base, the wiring terminal is arranged on a side of the base facing away from the safety door, the panel has a socket hole, and on a projection plane perpendicular to the first direction, the projections of the socket hole, the jack and the wiring terminal at least partially overlap.