Terminal for realizing electric connection and lamp
By combining a columnar pin with an insulated electrical connection, the problem of insufficient pin strength in small lamps is solved, achieving stable electrical connection and space saving. It is suitable for multifunctional small lamps such as ceiling lights.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
- Filing Date
- 2025-03-28
- Publication Date
- 2026-05-08
AI Technical Summary
The terminals of existing miniaturized lamps are prone to deformation due to insufficient pin strength and rigidity, resulting in unstable electrical connections. They also occupy a large space on the lamp board, affecting the lighting effect and increasing design difficulty.
The design features a columnar pin with at least two mutually insulated first electrical connection parts arranged circumferentially, which cooperate with the corresponding insulated second electrical connection parts at the female end to achieve multiple electrical connections. A concave-convex mating structure is adopted to enhance stability and space utilization.
It improves the strength and rigidity of the pins, reduces the space occupied by the terminals on the lamp board, ensures the stability of the electrical connection, and is suitable for multifunctional small lamps such as ceiling lights, improving the lighting effect and design flexibility.
Smart Images
Figure CN224217740U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic connector technology, and more specifically to a terminal and a lamp for realizing electrical connection. Background Technology
[0002] In the prior art, one method of implementing terminals for electrical connections in miniaturized lighting fixtures (such as ceiling lights) is as follows: Figure 1 As shown, electrical connection is achieved by plugging in a male terminal with pins and at least one female terminal with a socket. Specifically, the socket on the female terminal is as follows: Figure 2 As shown, a metal structure needs to be designed that abuts against the pin along its width and is wider than the pin itself. When the luminaire has diverse functions, such as dimming and color adjustment, more electronic circuitry is required for lighting control, which may necessitate multiple pins, such as four. Since traditional pins use a discrete configuration, possible implementation methods are as follows... Figure 3 or Figure 4 As shown, this can be achieved using a terminal with four pins or two terminals with two pins each.
[0003] The above terminals have some technical issues:
[0004] Because the male end is small, it is not easy to grasp or clamp.
[0005] Because the pins are made of metal and are long and thin, it is difficult to guarantee their rigidity and strength. During the insertion process, problems such as deformation, damage, and poor electrical connection are likely to occur.
[0006] The separate pin design means that when multiple pins are needed, the female end of the terminal will occupy a large area of the lamp board. This not only affects the arrangement space of components such as lamp chips, which may result in poor lighting effect, but also increases the design difficulty. Utility Model Content
[0007] To address the above problems, this utility model provides a terminal for realizing electrical connection, comprising: a male end including a columnar pin, the pin having at least two mutually insulated first electrical connection portions formed circumferentially; and at least one female end having a socket for the pin to be inserted into, the inner wall of the socket having at least two mutually insulated second electrical connection portions corresponding to the at least two mutually insulated first electrical connection portions, such that when the pin is inserted into the socket, the first electrical connection portions are electrically connected to the corresponding second electrical connection portions.
[0008] The male end of the terminal provided by this utility model is designed as a columnar pin, which avoids the problem of unstable electrical connection caused by deformation during insertion due to insufficient strength and rigidity of traditional pins. Furthermore, by providing at least two mutually insulated first electrical connection portions around the circumference of the columnar pin, a single pin can achieve multiple independent electrical connections while occupying less space, solving the space requirement of the terminal on the lamp board. When the terminal is used in small lamps, especially small lamps with color temperature switching and / or dimming functions (e.g., ceiling lights), the number of electrical connection lines required for the same terminal increases (e.g., standard power consumption). Ceiling lights with basic lighting require two electrical connections, while those with color temperature switching and / or dimming functions require three or four electrical connections. As mentioned above, including the limitations of existing terminals, the advantages of the terminals provided in this embodiment in terms of strength, rigidity, and space saving become increasingly apparent. Furthermore, in some applications, the male terminal needs to cooperate with multiple female terminals to achieve simultaneous electrical connection. In such cases, traditional pins are prone to insufficient strength and rigidity, leading to failure to insert to the bottommost female terminal or poor electrical contact. The terminals provided in this embodiment effectively solve this problem.
[0009] Optionally, the pin includes a columnar body made of insulating material, and the at least two first electrical connections that are insulated from each other extend along the axial direction of the columnar body and are spaced apart.
[0010] Optionally, the columnar body has at least two spaced grooves along the axial direction, and the at least two mutually insulated first electrical connection portions are arranged in the corresponding grooves.
[0011] The connection between the first electrical connection part and the columnar body can be achieved by pasting or electroplating. Considering the stability of the connection, as a preferred method, this utility model provides two or more spaced grooves along the extension direction of the columnar body. This design allows the first electrical connection part to be accommodated in the grooves. More specifically, the first electrical connection part can be connected to the grooves by any of the following methods: molding integral connection, inlay connection, pasting, or press-fit connection. This makes the relative positional relationship between the two more stable, and while ensuring conductivity, the cylindrical surface area of the pin is smaller, and correspondingly, the area occupied by it on the lamp board is also smaller, further realizing the miniaturization of the terminal.
[0012] Optionally, when the first electrical connection portion is recessed inside the groove, the width of the second electrical connection portion is smaller than the width of the groove.
[0013] Optionally, the male end further includes a stop portion disposed on the side of the pin away from the female end, the stop portion having a cross-sectional area along the cylindrical surface of the cylindrical body that is larger than the cross-sectional area of the socket, thereby limiting the depth to which the pin is inserted into the socket.
[0014] Optionally, the surface of the stop portion is provided with a direction mark, and the female end is provided with a foolproof mark that corresponds to the position of the direction mark along the insertion direction.
[0015] Optionally, the pin has multiple protrusions along the cylindrical direction, and the insertion hole has multiple recesses corresponding to the positions of the protrusions.
[0016] Optionally, the pin has multiple recesses along the cylindrical direction, and the socket has multiple protrusions corresponding to the positions of the recesses.
[0017] In this embodiment, by designing the pins and sockets with a concave-convex mating structure, a more stable connection is achieved, which not only makes it less prone to loosening and falling off, but also enables a more stable electrical connection.
[0018] Optionally, at least two first electrical connections are configured to be centrally symmetrically distributed at intervals along the cylindrical direction of the pin.
[0019] Optionally, the female end includes a base for assembling the second electrical connection part, and the base has a slot for inserting and fixing the second electrical connection part.
[0020] To achieve the above objectives, this application provides a lamp that utilizes the terminals described above.
[0021] Lighting fixtures using this terminal have a smaller area occupied by the terminal on the lamp board, making the lamp board design simpler and more flexible. For example, more LEDs can be installed to improve the lighting effect; it also facilitates the installation of other components, making the design scheme more diverse and taking into account lighting, heat dissipation and other performance aspects. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the existing terminal structure;
[0023] Figure 2 This is a schematic diagram of the mating structure of the female and male terminals of an existing terminal.
[0024] Figure 3 This is a schematic diagram of the existing terminals when four-circuit electrical connections are required.
[0025] Figure 4 This is a schematic diagram of the existing terminals when four-circuit electrical connections are required.
[0026] Figure 5A schematic diagram of the structure of the terminals and lamps provided for the embodiments of this utility model;
[0027] Figure 6 A schematic diagram of the terminal structure provided for an embodiment of this utility model;
[0028] Figure 7 A schematic diagram of the structure of a terminal provided for implementing the present invention and a lamp board using existing terminals;
[0029] Figure 8 This is a bottom view of the structure of the first electrical connection part having three male terminals in an embodiment of this utility model.
[0030] Figure 9 This is a schematic diagram of the male and female terminals of the terminal provided in the embodiments of this utility model at different angles;
[0031] Figure 10 This is a schematic diagram of the male and female terminals of the terminal provided in the embodiments of this utility model at different angles;
[0032] Figure 11 This is a side cross-sectional view of the female end provided in an embodiment of the present invention.
[0033] Figure 12 for Figure 11 Schematic diagram of the structural relationship between the connecting part and the limiting rib;
[0034] Figure 13 This is a schematic diagram of the structure of the second electrical connection part and the base provided in the embodiment of this utility model. Detailed Implementation
[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.
[0036] like Figure 5 , Figure 6 , Figure 8 and Figure 9As shown, this embodiment provides a terminal for realizing electrical connection, including: a male terminal 100 including a pin 110 extending in a columnar shape, the pin 110 having at least two mutually insulated first electrical connection portions 111 formed circumferentially; and at least one female terminal 200 having a socket 210 for inserting the pin 110, the inner wall of the socket 210 having at least two mutually insulated second electrical connection portions 220 corresponding to the at least two mutually insulated first electrical connection portions 111, such that when the pin 110 is inserted into the socket 210, the first electrical connection portion 111 is electrically connected to the corresponding second electrical connection portion 220.
[0037] The male terminal 100 of the terminal provided in this embodiment, by designing the pin 110 as a columnar shape, avoids the problem of unstable electrical connection caused by deformation during insertion due to insufficient strength and rigidity of traditional pins. Furthermore, by providing at least two mutually insulated first electrical connection portions circumferentially on the columnar pin, a single pin can achieve multiple independent electrical connections while occupying less space, solving the space occupied by the terminal on the lamp board. When the terminal is used in small lamps, especially small lamps with color temperature switching and / or dimming functions (e.g., ceiling lights), for electrical connection, the number of electrical connection lines required for the same terminal increases (e.g., standard function...). Ceiling lights require two electrical connections, while ceiling lights with color temperature switching and / or dimming functions require three or four electrical connections. As mentioned above, including the limitations of existing terminals, the limitations of existing terminals become increasingly apparent. Correspondingly, the advantages of the terminals provided in this embodiment in terms of strength, rigidity, and space saving become increasingly apparent. In addition, in some application scenarios, the male terminal 100 needs to cooperate with multiple female terminals 200 to achieve electrical connection with multiple female terminals 200 simultaneously. In this case, traditional pins are prone to failure to be inserted to the bottom female terminal or poor electrical connection due to insufficient strength and rigidity. The terminals provided in this embodiment can effectively solve this problem.
[0038] Alternatively, in some implementations, the pins may be designed in other shapes, such as tapered.
[0039] Figure 7This diagram illustrates a comparison of the space occupied on the lamp board by prior art terminals and terminals provided in this embodiment, given the same number of electrical connection lines. It is evident from the diagram that the terminals provided in this embodiment achieve miniaturization while maintaining the same functionality. Specifically, taking a terminal with four first electrical connection parts 111 (four electrical connection lines) as an example, a conventional terminal occupies approximately 3% of the lamp board area (also referred to as a module substrate or circuit board in applications other than lighting fixtures), while the terminals provided in this embodiment reduce the area occupied by the lamp board to approximately 1.7% of the total lamp board area. Therefore, it can be seen that the terminals provided in this embodiment can achieve a significant reduction in terminal size, and this advantage becomes more pronounced as the number of electrical connection lines increases.
[0040] Optionally, the pin 110 includes a columnar body 112 made of insulating material, and at least two first electrical connection portions 111 that are insulated from each other extend along the axial direction of the columnar body 112 and are spaced apart.
[0041] To facilitate explanation and highlight the technical effects of the terminals provided in this embodiment, the following description will take four first electrical connection parts 111 as an example. The columnar body 112 can ensure the strength and rigidity of the pin 110. When the first electrical connection parts 111 are designed to be four, the columnar body 112 is designed as a square column. The four first electrical connection parts 111 are respectively disposed on the four sides of the columnar body 112 and are insulated from each other by being spaced apart. With this arrangement, four electrical circuits can be connected through one pin 110 in a smaller space, which greatly saves the space occupied by the terminals on the lamp board and makes the arrangement of lamp beads and other devices more flexible and reasonable.
[0042] It should be noted that the design with four first electrical connection parts 111 is only one example, such as... Figure 8 As shown, the first electrical connection part 111 can also be designed as three, and the columnar body 112 can also be designed as a circle. That is, in this embodiment, the number (not less than two) and shape of the first electrical connection part 111 are not limited. Those skilled in the art can make corresponding designs based on the spirit of this utility model in combination with the requirements of the circuit and the requirements of the scenario.
[0043] Optionally, at least two first electrical connections 111 are designed to be centrally symmetrically distributed along the cylindrical direction, and correspondingly, second electrical connections 220 are designed to be centrally symmetrically distributed at corresponding intervals.
[0044] This design allows for a more uniform spacing between electrical connections, preventing some connections from being too close together and resulting in insufficient insulation distance, which could lead to creepage risks.
[0045] Optionally, the columnar body 112 has at least two spaced grooves 113 along the axial direction, and at least two mutually insulated first electrical connection portions 111 are arranged in the corresponding grooves 113.
[0046] The connection between the first electrical connection 111 and the columnar body 112 can be achieved by pasting or electroplating. Considering the stability of the connection relationship, as a preferred embodiment of this application, two or more spaced grooves 113, such as four, are provided in the columnar body 112 along its extension direction. This design allows the first electrical connection 111 to be accommodated in the grooves 113. More specifically, the first electrical connection 111 can be connected to the grooves 113 by any of the following methods: molding integral connection, inlay connection, pasting, or press-fit connection. This makes the relative positional relationship between the two more stable, and while ensuring conductivity, the cylindrical surface area of the pin 110 is smaller, and correspondingly, the area it occupies on the lamp board is also smaller, further realizing the miniaturization of the terminal.
[0047] It should be noted that the groove 113 on the axial outer periphery of the columnar body 112 is only a preferred example. In some embodiments, the first electrical connection part 111 can also be designed to be fixed to the outer periphery of the columnar body 112 by electroplating, pasting or other means without the need to open the groove 113.
[0048] Optionally, the male end 100 also includes a stop portion 120, which is disposed on the side of the pin 110 away from the female end 200. The cross-sectional area of the stop portion 120 along the insertion direction of the pin 110 is greater than the cross-sectional area of the socket 210, thereby limiting the depth of the pin 110 inserted into the socket 210.
[0049] Since a stop portion 120 with a cross-sectional area larger than that of the insertion hole 210 is provided, it can limit the insertion position of the insertion pin 110 and facilitate the hand or tool clamping of the male end 100. Preferably, the stop portion 120 can be designed as a square cap structure.
[0050] Optionally, in order to make it easier for users to understand the insertion angle of the male end 100, the surface of the stop part 120 is provided with a direction mark 121, and the female end 200 is provided with a foolproof mark 230 corresponding to the position of the direction mark along the insertion direction. Specifically, the direction mark and the foolproof mark can be designed as partial protrusions or depressions.
[0051] This design allows users to quickly assemble the terminals in the correct orientation.
[0052] Optionally, the pin 110 has a plurality of protrusions 114 along the cylindrical direction, and the socket 210 has a plurality of recesses 212 corresponding to the positions of the protrusions 114. This design makes the connection between the male end 100 and the female end 200 more secure.
[0053] Specifically, refer to Figure 9 , Figure 9 The diagram shows a bottom view of the male end 100 and a top view of the female end 200. When four protrusions 114 are formed at the four corners of the columnar body 112 of the pin 110, four recesses 212 with shapes matching the protrusions 114 are formed on the insulating structure of the inner wall of the corresponding position of the socket 210.
[0054] In this case, the insulation distance (creep distance) between the first electrical connection 111 and the corresponding second electrical connection 220 and other electrical connections is increased, resulting in better insulation between electrical connections of the same size terminals.
[0055] Alternatively, in another embodiment, refer to Figure 10 , Figure 10 The diagram shows a bottom view, a side view, and a top view of the female end 200. The pin 110 has multiple recesses 115 along the cylindrical direction, and the insertion hole 210 has multiple protrusions 213 corresponding to the positions of the recesses 115.
[0056] Optionally, the first electrical connection portion 111 and the second electrical connection portion 220 can also be designed as a convex-concave mating structure. For example, the first electrical connection portion 111 can be designed as an outward convex structure and the second electrical connection portion 220 can be designed as an inward concave structure; or, the first electrical connection portion 111 can be designed as an inward concave structure and the second electrical connection portion 220 can be designed as an outward convex structure.
[0057] In this embodiment, by setting the male end 100 and the female end 200 to a structure with multiple concave and convex mating relationships, their connection relationship is made more stable.
[0058] Optionally, the second electrical connection 220 can be assembled to the base 240 of the female end 200 by means of a snap-fit.
[0059] Optionally, the male end 100 and the female end 200 can achieve a stable connection through an interference fit. In this case, the stop part 120 can also be omitted.
[0060] Optionally, such as Figures 11-13As shown, the base 240 of the female end 200 is made of insulating material. Specifically, it and the columnar body 112 can both be made of resin. The base 240 is square in shape, and hollow structures are formed at the four corners to reduce manufacturing costs. Due to the use of resin material that has both insulation and strength, the strength of the female end 200 is still guaranteed even with the hollow structure.
[0061] Optionally, each side of the base 240 is provided with a slot 241 for assembling the second electrical connection part 220. The second electrical connection part 220 includes a welding part 221 for welding connection, a plug-in part 222 for plugging into the slot 241, and a connection part 223 for electrical connection with the first electrical connection part 111.
[0062] Optionally, the connecting part 223 is provided with an opening 2231, and the base 240 is provided with a limiting rib 242 corresponding to the opening 2231. The limiting rib 242 is embedded in the opening 2231, and the limiting rib 242 limits the position of the connecting part 223 of the second electrical connecting part 220, so that the relative positional relationship between the first electrical connecting part 111 and the second electrical connecting part 220 is more stable.
[0063] Optionally, when the first electrical connection portion 111 is recessed inside the groove 113, in order to achieve electrical connection with the first electrical connection portion 111, the width of the second electrical connection portion 220 is smaller than the width of the groove 113. More specifically, the width of the connection portion 223 is designed to be smaller than the width of the groove 113.
[0064] This embodiment also provides a lamp (not shown), which uses the terminals in this embodiment to achieve electrical connection. It should be noted that although this embodiment uses a ceiling lamp as an example for explanation, this is not a limitation on the terminals provided in this embodiment. The lamp provided in this embodiment also includes lamps such as chandeliers, bulb lamps, wall lamps, table lamps, and floor lamps that use LED beads arranged on a lamp board to achieve illumination.
[0065] The technical solution of this utility model has now been described in conjunction with the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to the specific embodiments described above. Without departing from the principles of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions resulting from these changes or substitutions will all fall within the protection scope of this utility model.
Claims
1. A terminal for realizing an electrical connection, characterized in that, include: The male terminal includes a pin, which has at least two first electrical connection portions that are insulated from each other in the circumferential direction; as well as At least one female end is provided with a socket for the pin to be inserted into. The inner wall of the socket is provided with at least two mutually insulated second electrical connection parts corresponding to the at least two mutually insulated first electrical connection parts, such that when the pin is inserted into the socket, the first electrical connection part is electrically connected to the corresponding second electrical connection part.
2. The terminal for realizing electrical connection according to claim 1, characterized in that, The pin includes a columnar body made of insulating material, and the at least two first electrical connections that are insulated from each other extend along the axial direction of the columnar body and are spaced apart.
3. The terminal for realizing electrical connection according to claim 2, characterized in that, The columnar body has at least two spaced grooves along its axial direction, and the at least two mutually insulated first electrical connection portions are arranged in the corresponding grooves.
4. The terminal for realizing electrical connection according to claim 3, characterized in that, When the first electrical connection portion is recessed inside the groove, the width of the second electrical connection portion is smaller than the width of the groove.
5. The terminal for realizing an electrical connection according to claim 1, characterized in that, The male end also includes a stop portion, which is disposed on the side of the pin away from the female end. The cross-sectional area of the stop portion along the insertion direction of the pin is greater than the cross-sectional area of the socket, thereby limiting the depth of the pin insertion into the socket.
6. The terminal for realizing an electrical connection according to claim 5, characterized in that, The surface of the stop portion is provided with a direction mark, and the female end is provided with a foolproof mark corresponding to the position of the direction mark along the insertion direction.
7. The terminal for realizing an electrical connection according to any one of claims 1-6, characterized in that, The pin has multiple protrusions along the cylindrical direction, and the insertion hole has multiple recesses corresponding to the positions of the protrusions.
8. The terminal for realizing an electrical connection according to any one of claims 1-6, characterized in that, The pin has multiple recesses along the cylindrical direction, and the insertion hole has multiple protrusions corresponding to the positions of the recesses.
9. The terminal for realizing an electrical connection according to any one of claims 1-6, characterized in that, The at least two first electrical connections are configured to be centrally symmetrically distributed at intervals along the cylindrical direction of the pin.
10. The terminal for realizing an electrical connection according to any one of claims 1-6, characterized in that, The female end includes a base for assembling the second electrical connection part, and the base has a slot for inserting and fixing the second electrical connection part.
11. A lamp, characterized in that, The terminal used for realizing electrical connection according to any one of claims 1-10.