Plug bush and socket
By introducing positioning pieces and fixing elements into the socket, the problem of plug loosening due to loss of elasticity of the clamping spring is solved, achieving a stable connection of the plug and extending the service life of the socket.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SCHNEIDER ELECTRIC IND SAS
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-28
AI Technical Summary
The clamping springs of existing sockets are prone to losing their elasticity after frequent use, leading to loose plugs and poor contact, which affects the lifespan of the socket.
The design employs a positioning plate and a fixing element. The positioning plate works in conjunction with the clamping spring, and the fixing element restricts the opening of the positioning plate to prevent the pins from rotating. Combined with the clamping force of the clamping spring, it ensures a secure connection of the plug.
This effectively prevents the plug from rotating and coming loose due to insufficient clamping force, thus improving the lifespan and stability of the socket.
Smart Images
Figure CN224177610U_ABST
Abstract
Description
Technical Field
[0001] The embodiments of this disclosure generally relate to the field of electronic devices, and more specifically, to a socket and receptacle. Background Technology
[0002] A socket and its mating plug are electronic devices used to connect power sources and electrical appliances. A socket mainly consists of a housing and a socket sleeve. The socket sleeve has a clamping portion for holding the prongs of the plug, which is opposite to the socket hole on the housing. After the prongs of the plug pass through the socket hole, they are elastically held by two clamping springs in the clamping portion of the socket sleeve, ensuring a reliable connection between the prongs and the socket sleeve. Utility Model Content
[0003] In a first aspect of this disclosure, a socket is provided, comprising: a body; a clamping portion connected to the body and including two clamping springs disposed opposite each other in a first direction; and a positioning portion connected to the body and including two positioning pieces disposed opposite each other in a second direction, the second direction being perpendicular to the first direction, wherein the clamping springs and the two positioning pieces define a clamping space for clamping the pins of a plug.
[0004] In some embodiments, the sleeve further includes a retainer located outside the clamping space and connected to two positioning tabs.
[0005] In some embodiments, the fixing member is annular and sleeved on two positioning pieces, with two clamping spring pieces located inside the fixing member.
[0006] In some embodiments, the fastener includes: a first segment; two second segments extending from both ends of the first segment toward the same side of the first segment; and two third segments extending toward each other from the ends of the two second segments away from the first segment, each third segment having a hook at its end, the hooks of the two third segments being capable of hooking together.
[0007] In some embodiments, the fastener is tightly fitted with two positioning plates.
[0008] In some embodiments, each positioning piece includes: a first portion connected to the body; a second portion away from the body; and a third portion located between the first portion and the second portion and used for contacting the plug pins, wherein the distance between the first portions of the two positioning pieces increases in the direction away from the third portion, and the distance between the second portions of the two positioning pieces increases in the direction away from the third portion.
[0009] In some embodiments, the third part is a planar portion.
[0010] In some embodiments, two clamping springs are located between two positioning plates. The two clamping springs are used to contact two opposite first sides of the pin, and the two positioning plates are used to contact two opposite second sides of the pin. The area of the first side is larger than the area of the second side.
[0011] In a second aspect of this disclosure, a socket is provided, including a socket according to a first aspect of this disclosure.
[0012] In some embodiments, the socket includes at least one pair of sockets, each pair of sockets being used to engage with two parallel prongs of the plug.
[0013] In the socket according to the embodiments of the present disclosure, the two positioning pieces of the socket are used to support and constrain the plug pins clamped between the two clamping springs. This can effectively prevent the plug from rotating relative to the socket due to insufficient clamping force of the clamping springs, thereby effectively preventing the plug from coming loose and thus helping to improve the service life of the socket.
[0014] It should be understood that the content described in this section is not intended to limit the key or essential features of the embodiments of this disclosure, nor is it intended to restrict the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description
[0015] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein:
[0016] Figure 1 A schematic diagram of the structure of a socket according to an embodiment of the present disclosure is shown;
[0017] Figure 2 Two were shown Figure 1 The diagram shows the structure of the insert.
[0018] Figure 3 The plug's two pins are shown inserted. Figure 2 A schematic diagram of the structure in the clamping space of the two sockets shown;
[0019] Figure 4 It shows along Figure 3 The sectional view shown is taken by the section line AA.
[0020] Figure 5 It shows Figure 1 A structural diagram of the fasteners in the diagram; and
[0021] Figure 6 It shows Figure 1 A schematic diagram of a modified fastener in a device. Detailed Implementation
[0022] Preferred embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.
[0023] The term "comprising" and its variations as used herein signify open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc., may refer to different or the same objects.
[0024] A standard two-prong socket consists of a housing and two independent sockets installed inside the housing. One socket corresponds to the live wire, and the other to the neutral wire. Each socket has a clamping part, and each clamping part includes two opposing clamping springs. The two clamping springs form a clamping space between them for the corresponding pins of a two-prong plug to be inserted. The clamping space is elongated to correspond to the rectangular pins. For two-prong sockets used in public places (such as, but not limited to, high-speed rail), the clamping parts of each socket will be subjected to frequent insertion and removal of two-prong plugs. This can easily cause the elasticity of the two clamping springs in each clamping part to decrease, resulting in a failure to tightly clamp the plug, leading to problems such as plug loosening and poor contact.
[0025] The embodiments of this disclosure provide a socket 100, and sockets using this socket 100, especially two-prong sockets, can effectively prevent plugs from loosening after prolonged use, thereby improving the lifespan of the socket. The following describes... Figures 1 to 6 The socket 100 provided in the embodiments of this disclosure will be described.
[0026] Figure 1 A schematic diagram of a socket 100 according to an embodiment of the present disclosure is shown. The socket 100 is applied to a socket (not shown), and the socket 100 is, for example, one of a pair of sockets 100 that mate with a two-prong plug. Of course, the socket 100 is not limited to sockets mate with two-prong plugs. In some embodiments, the socket 100 may, for example, be applied to a socket mate with a three-prong plug. Figure 2 A schematic diagram of two sockets 100 is shown, which are used to mate with the pins of a two-prong plug. Figure 3A schematic diagram of the structure is shown, showing the two prongs 30 of a two-prong plug inserted into the clamping space 101 of two sockets 100. Figure 4 It shows along Figure 3 The cross-sectional view shown is taken by the section line AA. Figure 5 It shows Figure 1 A schematic diagram of the structure of the fastener 20. Figure 6 It shows Figure 1 A schematic diagram of a variant of the fastener 20.
[0027] See Figure 1 and Figure 2 The socket 100 includes a body 10, a clamping part 11, a positioning part 12, and a fixing member 20. The body 10 has a connecting part 13 for direct or indirect connection with a corresponding wire (live wire or neutral wire). The clamping part 11 is connected to the body 10 and is included in a first direction (refer to...). Figure 2 Two clamping springs 111 are arranged opposite each other in the horizontal direction (referring to the middle). The positioning part 12 is connected to the body 10 and is included in the second direction (referring to the middle). Figure 2 Two positioning pieces 121 are arranged opposite each other in the vertical direction (in the middle), with the second direction perpendicular to the first direction. Two clamping springs 111 and two positioning pieces 121 define a clamping space 101 for clamping the pins 30 of the plug. A fixing member 20 is located outside the clamping space 101 and connected to the two positioning pieces 121. The fixing member 20 is used to limit the two positioning members 121 from opening in a direction away from each other.
[0028] See Figure 3 and Figure 4 When each pin 30 of the plug is inserted into the corresponding clamping space 101, the two clamping springs 111 of each clamping part 11 abut against the two opposing first sides of the corresponding pin 30 with larger areas. The two positioning pieces 121 of each positioning part 12 abut against the two opposing second sides of the corresponding pin 30 with smaller areas, and the area of the first side is larger than the area of the second side.
[0029] See back Figure 1 and Figure 2 When the prongs 30 of the plug are not inserted into the corresponding clamping spaces 101, the two clamping springs 111 of each clamping part 11 are in their initial state, and the distance between the two clamping springs 111 is less than the thickness of the prongs 30. A gap is left between the two clamping springs 111 and the fixing member 20 to allow the two clamping springs 111 to open when the prongs 30 are inserted into the clamping spaces 101. In some embodiments, the distance between the two positioning pieces 121 is not less than the height of the prongs 30 to avoid poor insertion of the prongs 30.
[0030] It is understood that in some embodiments, when the two positioning pieces 121 are not connected to the fixing member 20, the two positioning pieces 121 can also elastically deform in directions away from or close to each other. After the two positioning pieces 121 are connected to the fixing member 20, the fixing member 20 and the two positioning pieces 121 are tightly fitted to apply a certain clamping force to the two positioning pieces 121. In this way, the two positioning pieces 121 are not easy to open under the constraint of the fixing member 20, and the fixing member 20 itself is not easy to move relative to each positioning piece 121. At this time, the distance between the two positioning pieces 121 can be basically equal to or slightly greater than the height of the pin 30, so as to provide support and constraint for the pin 30 and achieve the effect of preventing the pin 30 from rotating in the direction indicated by arrow T.
[0031] See Figure 5 In some embodiments, the fastener 20 may include a first segment 21, two second segments 22, and two third segments 23. The two second segments 22 extend from both ends of the first segment 21 toward the same side of the first segment 21. The two third segments 23 extend toward each other from the ends of the two second segments 22 away from the first segment 21. Each third segment 23 has a hook 231 formed at its end, and the two hooks 231 are capable of hooking together. The fastener 20 may be pre-formed, for example, from a metal rod or metal strip (the metal material may be, for example, but is not limited to, carbon steel). The fastener 20 possesses both rigidity and elastic deformation capability. Of course, in alternative embodiments, the implementation of the fastener 20 is not limited to metal rods and metal strips.
[0032] See Figure 1 and Figure 5 When it is necessary to fit the fastener 20 onto the two positioning pieces 121, the hooks 231 can be released first, and the two second segments 22 can be opened to a certain extent. The fastener 20 can then be easily fitted onto the two positioning pieces 121. Then, the two hooks 231 are hooked together to form a ring structure, so that the fastener 20 is reliably fitted onto the two positioning pieces 121. The installation of the fastener 20 and the two positioning pieces 121 is relatively easy, and the fastener 20 itself is easy to manufacture and has a low cost.
[0033] See Figure 6 In some embodiments, the fastener 20 may be annular, and the fastener 20 may be sleeved on the two positioning pieces 121, which helps to simplify the assembly of the fastener 20 and the two positioning pieces 121.
[0034] It is understood that in some embodiments, recesses of the positioning fasteners 20 may be formed on each positioning piece 121 to further prevent movement of the fasteners 20 relative to each positioning piece 121. Two clamping springs 111 are located between the two positioning pieces 121 and inside the fasteners 20 to prevent the fasteners 20 from interfering with the insertion of the pins 30.
[0035] The following is a brief description of the process by which the plug pin 30 is inserted into the corresponding clamping space 101.
[0036] When the plug 30 is inserted into the clamping space 101, the plug 30 contacts the two clamping springs 111 and applies external force to them. The two clamping springs 111 open under the push of the plug 30, and at the same time generate a reverse elastic force to clamp the plug 30. When the plug 30 is fully inserted into the clamping space 101, under the action of gravity, the plug tends to rotate and presses against the two positioning plates 121. At this time, the two positioning plates 121 support the plug 30 and prevent the plug 30 from rotating. Moreover, under the action of the fixing member 20, the two positioning plates 121 are not easy to open, thus more effectively preventing the plug 30 and the plug with the plug 30 from rotating relative to the socket 100, thereby achieving the effect of preventing the plug from loosening and improving the service life of the socket.
[0037] See Figure 1 In some embodiments, a rectangular frame is formed at a suitable position on the body 10, and two clamping springs 111 of the clamping part 11 extend from two opposite sides of the rectangular frame, while two positioning pieces 121 of the positioning part 12 extend from the other two opposite sides of the rectangular frame. This facilitates the integral molding of the body 10, the clamping part 11, and the positioning part 12.
[0038] See Figure 4 In some embodiments, each positioning piece 121 includes a first portion 1211, a second portion 1212, and a third portion 1213. The first portion 1211 is connected to the body 10, the second portion 1212 is away from the body 10, and the third portion 1213 is located between the first portion 1211 and the second portion 1212 and is used to contact the pin 30 of the plug. The distance between the first portions 1211 of the two positioning pieces 121 increases in the direction away from the third portion 1213, and the distance between the second portions 1212 of the two positioning pieces 121 increases in the direction away from the third portion 1213. The two positioning pieces 121 form a recess at the third portion 1213. In this way, on the one hand, the fixing member 20 can be fitted onto the third portion 1213 and is not easy to fall off the positioning piece 121; on the other hand, the fixing member 20 can apply force to the pin 30 at close range through the third portion 1213, preventing the pin 30 from rotating in the direction indicated by arrow T. In addition, the shape of the second portion 1212 can also guide the insertion of the pin 30. In some embodiments, the third portion 1213 is a planar portion that is generally parallel to the second side of the pin, which can form a contact area with the second side of the pin 30 as large as possible, which is more conducive to preventing the pin 30 from rotating.
[0039] It should be noted that in some alternative embodiments, the fixing member 20 can also be implemented in other ways besides the ring shape described above. The fixing member 20 only needs to be able to connect with the two positioning pieces 121 to prevent them from opening. Furthermore, in some alternative embodiments, the fixing member 20 can be omitted. Even if the two positioning pieces 121 are not connected by the fixing member 20, they can still provide support and constraint for the pin 30, effectively preventing the pin 30 from rotating in the direction indicated by arrow T.
[0040] Even if the elasticity of the two clamping springs 111 decreases due to frequent plug insertion and removal operations, and they can no longer tightly clamp the plug, the plug pins 30 are not easily rotated relative to the socket 100 with the cooperation of the two positioning pieces 121 or with the cooperation of the two positioning pieces 121 and the fixing member 20, and the plug is not easily loosened, thereby improving the service life of the socket.
[0041] The socket 100 provided in this disclosure is suitable for various sockets, especially for two-hole sockets. A two-hole socket includes at least one pair of sockets 100, each pair of sockets 100 being used to mate with two parallel prongs 30 of a plug. The cross-section of the prongs 30 of the plug may be, but is not limited to, rectangular.
[0042] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, and are not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.
Claims
1. A socket (100), characterized in that, include: Ontology(10); A clamping part (11) is connected to the body (10) and includes two clamping springs (111) disposed opposite each other in a first direction; and The positioning part (12) is connected to the body (10) and includes two positioning pieces (121) disposed opposite each other in a second direction, the second direction being perpendicular to the first direction. The clamping spring (111) and the two positioning pieces (121) define a clamping space (101) for clamping the pins (30) of the plug.
2. The sleeve (100) according to claim 1, characterized in that, It also includes a fastener (20) located outside the clamping space (101) and connected to the two positioning pieces (121).
3. The sleeve (100) according to claim 2, characterized in that, The fixing member (20) is ring-shaped and is sleeved on the two positioning pieces (121). The two clamping spring pieces (111) are located inside the fixing member (20).
4. The sleeve (100) according to claim 2, characterized in that, The fastener (20) includes: First paragraph (21); Two second segments (22) extend from both ends of the first segment (21) toward the same side of the first segment (21); Two third segments (23) extend toward each other from the ends of the two second segments (22) away from the first segment (21), and each third segment (23) has a hook (231) at its end, and the hooks (231) of the two third segments (23) can hook each other.
5. The sleeve (100) according to claim 3 or 4, characterized in that, The fastener (20) is tightly fitted with the two positioning pieces (121).
6. The sleeve (100) according to any one of claims 1 to 5, characterized in that, Each of the aforementioned positioning pieces (121) includes: The first part (1211) is connected to the main body (10); The second part (1212) is located away from the main body (10); and The third part (1213) is located between the first part (1211) and the second part (1212) and is used to contact the pins (30) of the plug. The distance between the first part (1211) of the two positioning pieces (121) increases in the direction away from the third part (1213), and the distance between the second part (1212) of the two positioning pieces (121) increases in the direction away from the third part (1213).
7. The sleeve (100) according to claim 6, characterized in that, The third part (1213) is a planar part.
8. The sleeve (100) according to claim 1, characterized in that, The two clamping springs (111) are located between the two positioning pieces (121). The two clamping springs (111) are used to contact the two opposite first sides of the pin (30). The two positioning pieces (121) are used to contact the two opposite second sides of the pin. The area of the first side is larger than the area of the second side.
9. A socket, characterized in that, Includes the socket (100) according to any one of claims 1 to 8.
10. The socket according to claim 9, characterized in that, The socket includes at least one pair of said sockets, each pair of said sockets being used to engage with two parallel prongs (30) of the plug.