Power connection device and self-locking power plug thereof
By using a self-locking power plug design, the problem of easy power plug loosening is solved through the cooperation of a slider and a locking piece, achieving a stable connection and convenient unplugging, thus ensuring power supply safety.
Patent Information
- Application Number
- CN202423200159.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Existing power plugs are prone to coming loose when pulled by external force, causing power outages and posing a risk of electric shock. How can we design a stable and easy-to-unplug power connection device?
The power plug features a self-locking design, including an insulating base, locking plate, slider, and elastic element. The slider moves on a track, causing the locking plate to deflect, thus achieving self-locking and easy removal of the plug.
It achieves a secure connection between the plug and the socket, preventing it from coming loose, ensuring stable power supply, and making it easy to manually unplug, thus reducing the risk of electric shock.
Smart Images
Figure CN223843273U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to power connectors, and more particularly to a power connection device that is securely plugged in and easy to unplug, and its self-locking power plug. Background Technology
[0002] Power plugs are commonly used electrical connection devices for general electrical appliances. After being plugged into a socket, the power plug relies solely on the conductive copper contacts inside the socket to hold it in place and prevent it from falling out. Because the holding force of these copper contacts is limited, if the power cord is accidentally pulled by external force, the power plug is very likely to fall out, causing a power outage. Furthermore, power plugs are used to transmit high-voltage current, and their loosening could pose a risk of electric shock. Therefore, how to ensure that the plug can be stably inserted into the socket hole and is not easily loosened by external force is a problem that needs to be solved in this technical field. Utility Model Content
[0003] This utility model provides a power connection device that is securely plugged in and easy to unplug, and its self-locking power plug.
[0004] This utility model provides a self-locking power plug, comprising an insulating base, multiple conductors, a locking piece, a slider, and an elastic element. The insulating base has a mating surface and defines an insertion direction facing the mating surface. Within the insulating base, parallel to the insertion direction, is a track and a first channel, a second channel, and a third channel respectively communicating with the mating surface, with the first channel positioned between the second and third channels. The conductors are embedded within the insulating base and exposed within the first, second, and third channels. The locking piece is disposed within the insulating base and bisects the first channel. The locking piece has an opening, a fixed side, and a movable side opposite to the fixed side. The fixed side is positioned within the insulating base and located on the side of the first channel closer to the third channel, while the movable side is movably disposed on the side of the first channel closer to the second channel. The slider is disposed on the track and can move along the track between a released position and a locked position. The slider engages with the movable side of the locking piece, causing the locking piece to deflect. The slider has a handle that extends out of the insulating base. The elastic element is disposed within the insulating base and abuts against both the insulating base and the slider, preloading the slider with a force in the reverse insertion direction toward the locking position. When the slider is in the released position, the locking piece is perpendicular to the longitudinal direction of the first channel. When the slider is in the locked position, the locking piece is inclined relative to the longitudinal direction of the first channel.
[0005] In one embodiment of the present invention, the insulating base includes a body and a shell. The body is disposed inside the shell. A first channel, a second channel and a third channel are disposed in the body. A mating surface is formed on the shell, and a plurality of insertion holes are provided on the mating surface, which are respectively longitudinally aligned with the first channel, the second channel and the third channel.
[0006] In one embodiment of this utility model, the locking piece is disposed between one end of the first channel and the corresponding insertion hole of the first channel, and the movable side of the locking piece is longitudinally aligned with the track.
[0007] In one embodiment of this invention, the slider is confined within the track by the housing.
[0008] In one embodiment of this utility model, the track is disposed on one side of the body, and the first channel, the second channel and the third channel are disposed on the other side of the body opposite to the track.
[0009] In one embodiment of the present invention, the first channel, the second channel and the third channel are all open on one side, and the conductors are respectively housed in the first channel, the second channel and the third channel.
[0010] In one embodiment of the present invention, the insulating base includes a pressure block, which is assembled on the body and presses and fixes the conductor in the first channel.
[0011] In one embodiment of this utility model, the elastic element is housed in a longitudinal groove and abuts against the slider and the end of the track away from the mating surface.
[0012] In one embodiment of this utility model, a longitudinal hole is provided on the slider, and the elastic element is inserted into the longitudinal hole.
[0013] In one embodiment of this utility model, the slider is provided with a hook, and the hook engages with the movable side of the locking piece.
[0014] This utility model provides a power connection device, including the aforementioned self-locking power plug and a power socket. The power socket includes a socket body and a plurality of conductive pins corresponding to each conductor. The socket body has a mating groove, and the conductive pins protrude from the mating groove. An insulating seat is inserted into the mating groove, and the conductive pins pass through each socket hole and are inserted into the first channel, the second channel, and the third channel, respectively, and are mated to each conductor. When the slider is in the released position, the opening is perpendicular to the longitudinal direction of the first channel, allowing the conductive pins in the first channel to move longitudinally. When the slider moves to the locked position, the movable side of the locking piece is driven by the slider, causing the locking piece to deflect. The opening is deflected relative to the longitudinal direction of the first channel and tilted until the inner edge of the opening locks the side edge of the conductive pin in the first channel.
[0015] When the self-locking power plug is inserted into the power socket, the conductive pin corresponding to the first channel pushes against the movable side of the locking piece, causing the locking piece to deflect. Simultaneously, the slider moves from the locked position to the released position, allowing the self-locking power plug to be further inserted into the power socket. Once the self-locking power plug is fully inserted, the movement of the locking piece stops, and the elastic element pushes the slider to the locked position. The locking piece deflects until it engages with the side edge of the conductive pin in the first channel and stops. Thus, the locking piece locks the corresponding conductive pin, preventing the self-locking power plug from being removed from the power socket.
[0016] When a user wants to remove the self-locking power plug from the power socket, the user can hold the handle and pull the self-locking power plug to move the slider to the release position. The slider causes the locking piece to swing so that the opening of the locking piece is perpendicular to the longitudinal direction of the first channel, allowing the conductive pin in the first channel to move longitudinally. Therefore, the self-locking power plug can continue to be pulled out and removed from the power socket. Attached Figure Description
[0017] Figure 1 An exploded perspective view of one embodiment of the self-locking power plug of this utility model;
[0018] Figure 2 This is another exploded perspective view of a self-locking power plug according to an embodiment of the present invention.
[0019] Figure 3 This is a perspective view of one embodiment of the self-locking power plug of the present invention;
[0020] Figure 4 This is another perspective view of a self-locking power plug according to an embodiment of the present utility model;
[0021] Figure 5 This is a schematic diagram of the slider in the locked position of an embodiment of the power connection device of the present invention;
[0022] Figures 6 to 7 This is a schematic diagram of the plugging operation of a power connection device according to an embodiment of the present invention;
[0023] Figure 8 This is a schematic diagram of the slider in the release position of an embodiment of the power connection device of this utility model;
[0024] In the attached figures, the following labels are used:
[0025] 10: Self-locking power plug
[0026] 11: Cable
[0027] 20: Power socket
[0028] 21: Socket body
[0029] 22: Dating groove
[0030] 23: Conductive pin
[0031] 100: Insulating base
[0032] 101: Dating Surface
[0033] 102: Insertion direction
[0034] 110:Ontology
[0035] 111: First Channel
[0036] 112: Second Channel
[0037] 113: Third Channel
[0038] 114: Track
[0039] 120: Outer shell
[0040] 121, 122, 123: Sockets
[0041] 130: Pressed block
[0042] 210, 220, 230: Conductors
[0043] 300: Locking Plate
[0044] 301: Through Port
[0045] 310: Fixed side
[0046] 320: Activity side
[0047] 400: Slider
[0048] 410: Handle
[0049] 420: Claw
[0050] 430: Longitudinal hole
[0051] 500: Elastic element. Detailed Implementation
[0052] In the description of this utility model, it should be understood that the terms "front side", "rear side", "left side", "right side", "front end", "rear end", "end", "longitudinal", "lateral", "vertical", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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 limiting conditions of this utility model.
[0053] Unless otherwise defined, terms such as "substantially" and "approximately" are used to describe and narrate small changes. When combined with an event or situation, the term may include the exact moment the event or situation occurred, or an approximate point in time. For example, when combined with a numerical value, the term may include a range of variation less than or equal to ±10% of that value, such as less than or equal to ±5%, less than or equal to ±4%, less than or equal to ±3%, less than or equal to ±2%, less than or equal to ±1%, less than or equal to ±0.5%, less than or equal to ±0.1%, or less than or equal to ±0.05%.
[0054] The detailed description and technical content of this utility model will be explained in conjunction with the drawings below. However, the drawings are for illustrative purposes only and are not intended to limit the scope of this utility model.
[0055] Figure 1 An exploded perspective view of a self-locking power plug 10 according to an embodiment of the present invention; Figure 2 This is another exploded perspective view of the self-locking power plug 10 according to an embodiment of the present invention. (See also...) Figures 1 to 2 This utility model provides a self-locking power plug 10, which includes an insulating base 100, a plurality of conductors (210, 220, 230), a locking piece 300, a slider 400 and an elastic element 500.
[0056] Figure 3 This is a perspective view of one embodiment of the self-locking power plug 10 of this utility model. (See attached diagram.) Figure 3 The insulating base 100 has a mating surface 101 and an insertion direction 102 is defined in the insulating base 100. Specifically, the insertion direction 102 is defined as perpendicular to the mating surface 101.
[0057] Figure 4 This is another perspective view of a self-locking power plug 10 according to an embodiment of the present invention. (See attached diagram.) Figures 1 to 4An insulating base 100 includes a track 114, a first channel 111, a second channel 112, and a third channel 113. The first channel 111, the second channel 112, and the third channel 113 are respectively connected to a mating surface 101. Specifically, the insulating base 100 includes a body 110 and a housing 120. The body 110 is disposed within the housing 120. The first channel 111, the second channel 112, and the third channel 113 are disposed on the body 110. The mating surface 101 is formed in the housing 120, and the mating surface 101 has multiple insertion holes (121, 122, 123) that are longitudinally aligned with the first channel 111, the second channel 112, and the third channel 113, thereby allowing the first channel 111, the second channel 112, and the third channel 113 to be connected to the mating surface 101. The first channel 111 is disposed on one side of the body 110 and is parallel to the insertion direction 102. The second channel 112 and the third channel 113 are disposed on the other side of the body 110 opposite to the first channel 111, and all three channels are open on one side. The track 114 is disposed on the other side of the body 110 between the two aforementioned sides. The relative positions of the first channel 111, the second channel 112, and the third channel 113 on the cross-section of the insulating base 100 (i.e., referring to the relative positions of the insertion holes 121, 122, and 123 on the mating surface 101) are triangularly arranged, with the first channel 111 disposed between the second channel 112 and the third channel 113.
[0058] Conductors (210, 220, 230) are embedded within the insulating base 100, and are respectively housed in the first channel 111, the second channel 112, and the third channel 113, with some conductors (210, 220, 230) exposed within these channels. In this embodiment, the conductors (210, 220, 230) are inserted into the first channel 111, the second channel 112, and the third channel 113 through their open sides. Furthermore, the aforementioned insulating base 100 also includes a pressing block 130, which is assembled onto the body 110 and presses and fixes the conductor 210 in the first channel 111, while the conductors (220, 230) in the second channel 112 and the third channel 113 are pressed and fixed by the outer shell 120. See Figure 4 These conductors (210, 220, 230) are further connected to wire 11.
[0059] See Figures 1 to 3The locking piece 300 is disposed within the insulating base 100 and is positioned between one end of the first channel 111 and the corresponding insertion hole 121 of the first channel 111, thus transversely interrupting the longitudinal direction of the first channel 111. The locking piece 300 has a through-hole 301, a fixed side 310, and a movable side 320 opposite to the fixed side 310. The fixed side 310 of the locking piece 300 is positioned in the insulating base 100, and the movable side 320 of the locking piece 300 is movably disposed. The fixed side 310 and the movable side 320 are respectively disposed on the two sides of the first channel 111, with the movable side 320 being closer to the second channel 112 and the fixed side 310 being closer to the third channel 113. The movable side 320 of the locking piece 300 is longitudinally aligned with the track 114.
[0060] See Figures 2 to 4 The slider 400 is disposed on the track 114 and is confined within the track 114 by the housing 120, allowing it to move along the track 114. Specifically, the slider 400 is structurally aligned with the track 114. The slider 400 has a handle 410 that extends out of the insulating base 100 for the user to push the slider 400. The slider 400 has a pawl 420 that engages with the movable side 320 of the locking piece 300, thereby causing the locking piece 300 to deflect. A longitudinal hole 430 protrudes from the side of the slider 400 away from the mating surface 101, extending longitudinally along the track 114.
[0061] Figure 5 This is a schematic diagram of the slider 400 in the locked position of an embodiment of the power connection device of the present invention; Figures 6 to 7 This is a schematic diagram of the plugging operation of a power connection device according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the slider 400 in the release position of an embodiment of the power connection device of this utility model.
[0062] Slider 400 can move along track 114 as follows Figure 5 A locking position of the adjacent mating surface 101 shown and as follows Figure 8 The device moves between a release position away from the docking surface 101, as shown. (See attached image) Figures 1 to 4 The elastic element 500 is disposed within the insulating base 100 and abuts against both the insulating base 100 and the slider 400, preloading the slider 400 with a force in the reverse insertion direction 102 toward the locking position. (See also...) Figure 5 Specifically, the elastic element 500 is housed within the track 114 and is fixed by being inserted into the longitudinal hole 430. Therefore, the elastic element 500, supported by the inner wall of the end of the track 114 away from the mating surface 101, pushes the slider 400 to the locked position. Figure 5 As shown, when the slider 400 is in the locked position, the locking piece 300 is longitudinally inclined relative to the first channel 111. Figure 8 As shown, when the slider 400 is in the released position, the locking piece 300 is perpendicular to the longitudinal direction of the first channel 111.
[0063] like Figure 5 As shown, this utility model provides an electrical connection device, including the aforementioned self-locking power plug 10 and a power socket 20. The power socket 20 includes a socket body 21 and a plurality of conductive pins 23 corresponding to each conductor (210, 220, 230). The socket body 21 has a mating groove 22, and the conductive pins 23 protrude from the mating groove 22.
[0064] See Figure 6 and Figure 7 The mating groove 22 is used to insert the insulating base 100, and the conductive pins 23 pass through the respective insertion holes (121, 122, 123) and are inserted into the first channel 111, the second channel 112 and the third channel 113 and respectively connect with the respective conductors (210, 220, 230).
[0065] See Figure 6 When the insulating base 100 is inserted into the mating groove 22, the conductive pin 23 corresponding to the first channel 111 pushes against the movable side 320 of the locking piece 300, causing the locking piece 300 to swing to a position perpendicular to the longitudinal direction of the first channel 111. At the same time, the slider 400 moves from the locked position to the released position. At this time, the conductive pin 23 can be inserted into the first channel 111 through the through-hole 301 of the locking piece 300 to allow the insulating base 100 to be further inserted into the mating groove 22. The remaining conductive pins 23 are respectively inserted into the corresponding second channel 112 and third channel 113.
[0066] See Figure 7 When the insulating base 100 stops inserting into the mating slot 22, the conductive pin 23 stops pushing the locking piece 300, and the elastic element 500 pushes the slider 400 to the locking position. When the slider 400 moves to the locking position, the movable side 320 of the locking piece 300 is driven by the slider 400, causing the locking piece 300 to deflect. The longitudinal deflection and tilt of the through-hole 301 relative to the first channel 111 causes the longitudinal cross-sectional projection area of the through-hole 301 to gradually shrink. The locking piece 300 deflects to the position where the inner edge of the through-hole 301 locks the side edge of the conductive pin 23 in the first channel 111 and stops. Thus, the locking piece 300 locks the corresponding conductive pin 23, preventing the self-locking power plug 10 from being removed from the power socket 20.
[0067] like Figure 8As shown, when you want to remove the self-locking power plug 10 from the power socket 20, the user can hold the handle 410 and pull the self-locking power plug 10 to move the slider 400 to the release position. The slider 400 causes the locking piece 300 to swing so that the opening 301 of the locking piece 300 is perpendicular to the longitudinal direction of the first channel 111, allowing the conductive pin 23 in the first channel 111 to move longitudinally. Therefore, the self-locking power plug 10 can continue to be pulled out and removed from the power socket 20.
[0068] The above description is only a preferred embodiment of the present utility model and is not intended to limit the patent scope of the present utility model. Other equivalent changes that utilize the patent spirit of the present utility model should all fall within the protection scope of the present utility model.
Claims
1. A self-locking power plug, characterized in that, Include: An insulating base has a mating surface and defines an insertion direction toward the mating surface. Inside the insulating base, parallel to the insertion direction, there is a track and a first channel, a second channel, and a third channel respectively communicating with the mating surface, and the first channel is disposed between the second channel and the third channel. Multiple conductors are embedded in the insulating base and are respectively exposed in the first channel, the second channel and the third channel; A locking piece is disposed within the insulating base and transversely blocks the longitudinal direction of the first channel. The locking piece has a through-hole, a fixed side, and a movable side opposite to the fixed side. The fixed side is positioned in the insulating base, and the movable side is movably disposed. The fixed side and the movable side are respectively disposed on two sides of the first channel, with the movable side closer to the second channel and the fixed side closer to the third channel. A slider, disposed on the track and movable along the track between a released position and a locked position, engages with the movable side of the locking piece to deflect the locking piece; the slider has a handle extending through the insulating base; and An elastic element is disposed within the insulating base and abuts against both the insulating base and the slider, preloading the slider with a force opposing the insertion direction and toward the locking position. When the slider is in the released position, the locking piece is perpendicular to the longitudinal direction of the first channel; When the slider is in the locked position, the locking piece is longitudinally tilted relative to the first channel.
2. The self-locking power plug as described in claim 1, characterized in that, The insulating base includes a body and a shell. The body is disposed inside the shell. The first channel, the second channel and the third channel are disposed on the body. The mating surface is formed on the shell, and the mating surface is provided with a plurality of insertion holes that are longitudinally aligned with the first channel, the second channel and the third channel respectively.
3. The self-locking power plug as described in claim 2, characterized in that, The locking piece is disposed between one end of the first channel and the corresponding socket of the first channel, and the movable side of the locking piece is longitudinally aligned with the track.
4. The self-locking power plug as described in claim 2, characterized in that, The slider is confined within the track by the housing.
5. The self-locking power plug as described in claim 2, characterized in that, The track is located on one side of the main body, and the first channel, the second channel, and the third channel are located on the other side of the main body opposite to the track.
6. The self-locking power plug as described in claim 5, characterized in that, The first channel, the second channel, and the third channel are all open on one side, and the conductors are respectively housed in the first channel, the second channel, and the third channel.
7. The self-locking power plug as described in claim 6, characterized in that, The insulating base includes a pressure block that is assembled on the body and presses and fixes the conductor fixed in the first channel.
8. The self-locking power plug as described in claim 1, characterized in that, The slider has a longitudinal hole, and the elastic element is inserted into the longitudinal hole.
9. The self-locking power plug as described in claim 8, characterized in that, The elastic element is housed in the longitudinal hole and abuts against the slider and the end of the track away from the mating surface.
10. The self-locking power plug as described in claim 1, characterized in that, The slider is provided with a hook, and the hook engages with the movable side of the locking piece.
11. An electrical connection device, characterized in that, Include: The self-locking power plug as described in any one of claims 1 to 10; and A power socket includes a socket body and a plurality of conductive pins corresponding to each conductor. The socket body has a mating groove, the conductive pins protrude from the mating groove, an insulating base is inserted into the mating groove, and the conductive pins are respectively inserted into a first channel, a second channel, and a third channel and respectively mat to each conductor. When the slider is in the release position, the opening is perpendicular to the longitudinal direction of the first channel, allowing the conductive pin in the first channel to move longitudinally. When the slider moves to the locking position, the movable side of the locking piece is driven by the slider, causing the locking piece to deflect. The opening tilts relative to the longitudinal direction of the first channel until the inner edge of the opening locks the side edge of the conductive pin in the first channel.