Socket terminal trigger buffer and power socket

Abstract

The application discloses a socket terminal trigger buffer, which comprises a printed circuit board and a conductive terminal fixed above the printed circuit board, a starting switch is fixed below the printed circuit board, the printed circuit board is provided with a plurality of hollow openings distributed on the side of a trigger end of the starting switch, the conductive terminal is connected with a buffer button which can move up and down along the direction perpendicular to the printed circuit board, an elastic reset element is arranged between the buffer button and the printed circuit board, and a pressing plate is arranged at the lower part of the buffer button and penetrates through the hollow openings and abuts against the trigger end of the starting switch. In addition, the application also provides a power socket containing the socket terminal trigger buffer. The application can meet the use requirements of different pin lengths at the same time, and has the advantages of simple and compact structure, reliability, difficulty in being stuck, and convenience in quick assembly.

Description

Technical Field

[0001] This invention relates to the field of power socket switch triggering device technology, and more particularly to a socket terminal triggering buffer and a power socket. Background Technology

[0002] Currently, the lengths of the prongs on power plugs used by various electrical appliances differ due to varying usage requirements. Therefore, when a power plug with shorter prongs is connected to a standard power outlet with a trigger switch, the shorter prongs prevent the plug from being pressed down and triggering the switch, causing the power outlet to malfunction.

[0003] Some existing power sockets use trigger buffers at the socket terminals to accommodate power plugs with different prong lengths. For example, Chinese utility model patent CN202872122U discloses a trigger buffer for a vehicle power socket. The trigger buffer includes an upper button, an upper spring, a lower button, a lower spring, and a push-button switch arranged vertically. By utilizing the deformation of the springs, there is an upward and downward buffer travel between the upper and lower buttons, making it easy to accommodate plugs of different lengths to press down and start the switch. However, this type of trigger buffer structure has drawbacks such as complex structure, many parts, and many assembly and process control points, which is not conducive to rapid assembly and production, and is prone to jamming.

[0004] Therefore, it is necessary to develop a socket terminal trigger buffer and corresponding power socket that can simultaneously meet the requirements of different pin lengths and has a simple and reliable structure. Summary of the Invention

[0005] The purpose of this invention is to provide a socket terminal trigger buffer and a power socket that can simultaneously meet the requirements of different pin lengths, and has a simple and reliable structure. This solves the problems of conventional power socket trigger buffers in the background art, such as complex structure, difficulty in rapid assembly and production, and easy jamming.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] In a first aspect, the present invention provides a socket terminal trigger buffer, including a printed circuit board and conductive terminals fixed above the printed circuit board. A start switch is fixed below the printed circuit board. The printed circuit board has a through-hole distributed on one side of the trigger end of the start switch. The conductive terminals are plugged into and connected to a buffer button that can move up and down in a direction perpendicular to the printed circuit board. An elastic reset element is installed between the buffer button and the printed circuit board. The lower part of the buffer button has a pressing plate that extends through the through-hole and abuts against the trigger end of the start switch.

[0008] Furthermore, the pressing plate is provided with a pressing slope that facilitates contact with the pressing trigger end. This pressing slope effectively converts vertical pressing force into lateral thrust, thereby pushing the trigger end to close and activate the start switch. After the start switch closes, the buffer button can continue to move downwards, ensuring power connection even for plugs with different pin lengths.

[0009] Furthermore, the conductive terminal includes a guide slot formed by bending the side plate and at least two first clamping plates located above the guide slot. The upper part of the buffer button is provided with a guide pin that engages with the guide slot. The lower part of each first clamping plate is connected to the side plate, and the upper part of each first clamping plate together forms a plug-in clamp for inserting the power plug pins and pressing down on the guide pins. The cooperation between the guide pins and the guide slot provides a better vertical guiding effect, allowing the power plug pins to press the buffer button and slide smoothly vertically downwards, and to be smoothly lifted upwards and reset by the elastic reset element after the pressing force is released.

[0010] Furthermore, the upper part of the guide post is provided with a first limiting slope, and each first clamping plate is provided with a second limiting slope on the surface near the guide post. When the power plug is not inserted, the buffer button will be pushed upward to the first clamping plate due to the elastic force of the elastic reset element. Through the cooperation of the first limiting slope and the second limiting slope, a good limiting effect can be achieved.

[0011] Furthermore, the conductive terminal also includes a plug-in plate connected to the side plate. The upper surface of the printed circuit board is provided with a connector, which has a plug-in slot that plugs into one end of the plug-in plate. The connector can be pre-clamped and fixed onto the printed circuit board. During subsequent assembly, the conductive terminal can be quickly and easily fixed onto the printed circuit board through the cooperation of the plug-in plate and the plug-in slot, improving assembly efficiency.

[0012] Furthermore, the insertion slot is composed of two second clamping plates and a connecting plate connecting the two second clamping plates.

[0013] Preferably, the inner walls of the two second clamping plates are provided with protrusions. By providing protrusions, the plug-in plate can be clamped and fixed more firmly, thereby ensuring a secure connection between the conductive terminals and the connectors on the printed circuit board.

[0014] Furthermore, the conductive terminal is connected to an L-shaped plug. The power socket is provided with a corresponding fixing groove for inserting and connecting the L-shaped plug, which further improves the installation firmness of the conductive terminal.

[0015] Preferably, the L-shaped insert has several protrusions on both sides, so that the L-shaped insert can be firmly inserted into the fixing groove.

[0016] Furthermore, the lower part of the buffer button is provided with at least one guide rod, and the printed circuit board is provided with a guide slot hole that slides through the guide rod. The sliding engagement between the guide rod and the guide slot hole further improves the smoothness and stability of the buffer button during its up-and-down movement.

[0017] Preferably, the cross-sectional shape of the guide rod and the guide slot is T-shaped.

[0018] Furthermore, the lower part of the buffer button is provided with a positioning groove, and the upper end of the elastic reset element is embedded in and connected to the positioning groove. In this way, the elastic reset element can be effectively limited, and by setting the positioning groove, the height of the buffer button can be reduced, thereby making the overall structure more compact.

[0019] Furthermore, a positioning post is provided inside the positioning groove, and the upper end of the elastic reset element is sleeved on the outside of the positioning post. By providing the positioning post, the elastic reset element can be further limited and fixed.

[0020] Furthermore, the elastic reset element is a compression spring.

[0021] Secondly, the present invention also provides a power socket having sockets for connecting to the pins of a power plug, each socket having the aforementioned socket terminal trigger buffer.

[0022] Compared with the prior art, the present invention provides a socket terminal trigger buffer and a power socket, which have the following beneficial effects:

[0023] This invention uses conductive terminals and a start switch fixedly mounted on both sides of a printed circuit board. Since only one elastic reset element is used, the components are more streamlined. At the same time, the conductive terminals are used to directly lock and limit the buffer button and the elastic reset element, which greatly improves the assembly efficiency. Furthermore, the overall structure is simple and reliable due to the plug-in cooperation between the buffer button and the conductive terminal, as well as the upward pushing force provided by the elastic reset element. It is not easy to get stuck, making the prepared power socket more suitable for use with power plugs of different prong lengths.

[0024] Meanwhile, by creating cutouts on the printed circuit board, the vertical pressing force can be converted into a lateral pushing force by a pressing plate when the power plug is inserted and the buffer button is pressed. This lateral force then activates the switch, completing the electrical connection. This method of converting vertical force into lateral force, compared to the conventional vertical triggering method, reduces the overall structural height, making the resulting power socket more compact and smaller. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A three-dimensional structural diagram of a socket terminal trigger buffer;

[0027] Figure 2 Exploded view of the components for the socket terminal trigger buffer;

[0028] Figure 3 This is a three-dimensional structural diagram of a conductive terminal;

[0029] Figure 4 This is a schematic diagram showing the connection between the buffer button and the conductive terminal.

[0030] Figure 5 This is a schematic diagram of the assembly of the socket terminal trigger buffer;

[0031] Figure 6 for Figure 1 A schematic diagram of the cross-sectional structure along the AA direction;

[0032] Figure 7 for Figure 1 A schematic diagram of the cross-sectional structure along the BB direction;

[0033] Figure 8 A schematic diagram showing the installation of a socket terminal trigger buffer on a power socket.

[0034] Reference numerals: 1. Printed circuit board; 11. Cutout; 12. Guide slot; 2. Conductive terminal; 21. Side plate; 22. Guide slot; 23. First clamping plate; 231. Second limiting slope; 24. Insertion clamp; 25. Insertion plate; 26. L-shaped insert plate; 261. Protrusion; 3. Start switch; 31. Trigger end; 4. Buffer button; 41. Pressing plate; 411. Pressing slope; 42. Guide post; 421. First limiting slope; 43. Guide rod; 44. Positioning slot; 45. Positioning post; 5. Elastic reset element; 6. Connector; 61. Insertion slot; 611. Second clamping plate; 612. Connecting plate; 613. Protrusion; 7. Power socket; 71. Fixing slot. Detailed Implementation

[0035] The technical solution of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" 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 invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature and the second feature are in direct contact, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] The present invention will now be described in further detail through detailed embodiments and in conjunction with the accompanying drawings.

[0041] Example 1

[0042] Please refer to Figures 1 to 7 This embodiment provides a socket terminal trigger buffer, including a printed circuit board 1 and conductive terminals 2 fixed above the printed circuit board 1. A start switch 3 is fixed below the printed circuit board 1. The printed circuit board 1 has a through-hole 11 located on one side of the trigger end 31 of the start switch 3. The conductive terminals 2 are plugged into and connected to a buffer button 4 that can move up and down in a direction perpendicular to the printed circuit board 1. An elastic reset element 5 is installed between the buffer button 4 and the printed circuit board 1. The lower part of the buffer button 4 has a pressing plate 41 that extends through the through-hole 11 and abuts against the trigger end 31 of the start switch 3. By fixing the conductive terminals and the start switch on both sides of the printed circuit board respectively, and using only one elastic reset element, the components are more streamlined. At the same time, the direct use of the conductive terminals to lock and limit the buffer button and the elastic reset element greatly improves assembly efficiency. Furthermore, the plugging and mating of the buffer button and the conductive terminals, as well as the upward pushing force provided by the elastic reset element, make the overall structure simple and reliable, less prone to jamming, and make the prepared power socket more suitable for use with power plugs of different lengths. Furthermore, by creating cutouts on the printed circuit board, the vertical pressing force can be converted into a lateral pushing force by a pressing plate during the insertion of the power plug and pressing of the buffer button. This lateral force then activates the switch, completing the electrical conduction. Compared to the conventional vertical triggering method, this method of converting vertical force into lateral force reduces the overall structural height, resulting in a more compact and smaller power socket.

[0043] In some specific implementation methods, refer to Figure 1 , Figure 2 , Figures 4-7 The pressing plate 41 is provided with a pressing slope 411 to facilitate contact with the pressing trigger end 31. Through the pressing slope, the vertical pressing force can be effectively converted into a lateral thrust, thereby pushing the trigger end to close and turn on the start switch. After the start switch is closed, the buffer button can continue to move downward, so that even if the plug prongs are of different lengths, it can still be connected to power.

[0044] As an example, the start switch 3 can be a Panasonic tactile switch, model ESE31, or an Alps limit switch, model SPVS310100.

[0045] In some specific implementation methods, refer to Figures 1 to 7The conductive terminal 2 is made of metal and specifically includes a guide slot 22 formed by bending a side plate 21 and three first clamping plates 23 located above the guide slot 22. The upper part of the buffer button 4 is provided with a guide post 42 that engages with the guide slot 22. The lower part of each first clamping plate 23 is connected to the side plate 21, and the upper part of each first clamping plate 23 together forms a insertion clamp 24 for the power plug pins to be inserted and pressed downwards against the guide post 42. The cooperation between the guide post and the guide slot provides a good vertical guiding effect, allowing the power plug pins to press the buffer button and slide smoothly downwards vertically, and to be smoothly lifted upwards and reset by the elastic reset element after the pressing force is released.

[0046] For details, please refer to Figure 3 , Figure 4 , Figure 6 and Figure 7 The upper part of the guide post 42 is provided with a first limiting slope 421, and each first clamping plate 23 is provided with a second limiting slope 231 on the surface near the guide post 42. In this way, when the power plug is not inserted, the buffer button will be pushed upward to the first clamping plate due to the elastic force of the elastic reset element. Through the cooperation of the first limiting slope and the second limiting slope, a good limiting effect can be achieved.

[0047] In some specific implementation methods, refer to Figure 4 , Figure 6 and Figure 7 The lower part of the buffer button 4 is provided with a positioning groove 44, and the upper end of the elastic reset element 5 is embedded in and connected to the positioning groove 44. In this way, the elastic reset element can be effectively limited, and by setting the positioning groove, the height of the buffer button can be reduced, thereby making the overall structure more compact.

[0048] like Figure 6 and Figure 7 As shown, in order to further limit and fix the elastic reset element 5, a positioning post 45 is provided inside the positioning groove 44, and the upper end of the elastic reset element 5 is sleeved on the outside of the positioning post 45.

[0049] In some specific implementation methods, refer to Figures 1 to 7 The elastic reset element 5 is a compression spring. As an example, the elastic reset element 5 is a metal coil spring.

[0050] In this embodiment, since the buffer button 4 is connected to the elastic reset element 5, there is a vertical buffer travel, which allows the start switch to be triggered and the power conduction function to be realized even if the prongs of the power plug are of different lengths. Specifically, the vertical travel of the buffer button 4 can be set to 2-5mm. As an example, the vertical travel of the buffer button 4 can be selected to be 2.6mm or 4.6mm.

[0051] In this embodiment, reference Figures 1 to 7 The conductive terminal 2 further includes a plug-in plate 25 connected to the side plate 21. The upper surface of the printed circuit board 1 is provided with a connector 6, which is connected to a plug-in slot 61 that plugs into one end of the plug-in plate 25. Specifically, the connector 6 is made of metal. The plug-in slot 61 consists of two second clamping plates 611 and a connecting plate 612 connecting the two second clamping plates 611. The connector 6 can be directly snapped onto the printed circuit board 1 in advance. During subsequent assembly, the conductive terminal 2 can be quickly and easily fixed onto the printed circuit board 1 through the snap-fit ​​engagement of the plug-in plate 25 and the plug-in slot 61, improving assembly efficiency.

[0052] Preferred, such as Figure 5 and Figure 7 As shown, the inner walls of the two second clamping plates 611 are provided with protrusions 613. By providing the protrusions, the plug-in plate can be clamped and fixed more firmly, thereby ensuring that the conductive terminals are firmly connected to the connectors on the printed circuit board.

[0053] In some specific implementation methods, refer to Figure 1 , Figure 2 , Figures 5-7 The lower part of the buffer button 4 is provided with at least one guide rod 43, and the printed circuit board 1 is provided with a guide slot 12 that slides through the guide rod 43. The sliding engagement between the guide rod and the guide slot further improves the smoothness and stability of the buffer button during its up-and-down movement. Preferably, the cross-sectional shape of the guide rod 43 and the guide slot 12 is T-shaped.

[0054] Furthermore, in some specific implementation methods, such as Figures 1 to 7 As shown, the conductive terminal 2 is connected to an L-shaped insert 26 for reinforcing the connection. (Reference) Figure 8 The power socket 7 is provided with a fixing groove 71 for inserting and connecting the L-shaped plug plate 26, which further improves the installation firmness of the conductive terminal 2. Preferably, refer to Figure 3 The L-shaped insert 26 has several protrusions 261 on both sides, so that the L-shaped insert 26 can be more firmly inserted into the fixing groove 71.

[0055] In this embodiment, the buffer button 4 is preferably made of insulating plastic in one piece.

[0056] refer to Figures 4-7 In use, the power plug is inserted into the connector 24 of the conductive terminal 2. The plug pushes the guide pin 42 of the buffer button 4 downwards. The pressing slope 411 on the pressing plate 41 at the bottom of the buffer button 4 abuts against and presses laterally against the trigger end 31 of the start switch 3, thereby closing the start switch 3 and realizing electrical conduction. When the plug is pulled out, the buffer button 4 can slide upwards smoothly to reset under the upward pushing action of the elastic reset element 5, thereby turning off the start switch 3.

[0057] Example 2

[0058] This embodiment provides a power socket with sockets for connecting to the pins of a power plug. Each socket contains a socket terminal trigger buffer as described in Embodiment 1. As an example, the power socket may be a socket with at least one three-hole socket, a two-hole socket, or a socket with both three-hole and two-hole sockets. Furthermore, to simplify the structural layout, the printed circuit boards for the socket terminal trigger buffers in each socket are integrated and distributed using the same printed circuit board.

[0059] In some specific implementation methods, such as Figure 8 As shown, the power socket 7 is a three-hole socket, and each hole is equipped with a socket terminal trigger buffer as described in Embodiment 1 (for simplification purposes, ...). Figure 8 The two socket terminal trigger buffers and the top cover (and other power socket accessories) are concealed and integrated and fixed on a single printed circuit board 1. The conductive terminals of the socket terminal trigger buffers are further secured by the engagement of the L-shaped insert plate 26 with the fixing groove 71.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0061] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A socket terminal trigger buffer, comprising a printed circuit board and conductive terminals fixed above the printed circuit board, characterized in that: A start switch is fixed below the printed circuit board. The printed circuit board has through-holes located on one side of the trigger end of the start switch. A buffer button, movable up and down along a direction perpendicular to the printed circuit board, is plugged into the conductive terminal. An elastic reset element is installed between the buffer button and the printed circuit board. A pressing plate extends through the through-hole and abuts against the trigger end of the start switch at the lower part of the buffer button. The pressing plate has a pressing bevel to facilitate pressing the trigger end. At least one guide rod is located at the lower part of the buffer button. A corresponding guide slot hole is provided through the printed circuit board, slidingly engaging with the guide rod. The cross-sectional shape of the guide rod and the guide slot hole is T-shaped. A positioning groove is located at the lower part of the buffer button, and the upper end of the elastic reset element is embedded in and connected to the positioning groove. A positioning post is located inside the positioning groove, and the upper end of the elastic reset element is sleeved on the outside of the positioning post.

2. The socket terminal trigger buffer according to claim 1, characterized in that: The conductive terminal includes a guide slot formed by bending the side plate and at least two first clamping plates located above the guide slot. The upper part of the buffer button is provided with a guide pin that is inserted into the guide slot. The lower part of each first clamping plate is connected to the side plate. The upper part of each first clamping plate together forms a plug-in clamp for inserting the power plug pin and pressing down on the guide pin.

3. The socket terminal trigger buffer according to claim 2, characterized in that: The upper part of the guide post is provided with a first limiting slope, and each first clamping plate is provided with a second limiting slope on the surface near the guide post.

4. The socket terminal trigger buffer according to claim 2, characterized in that: The conductive terminal also includes a plug-in plate connected to the side plate. The upper surface of the printed circuit board is provided with a connector, and the connector is connected to a plug-in slot that is plugged into one end of the plug-in plate.

5. The socket terminal trigger buffer according to claim 1, characterized in that: The elastic reset element is a compression spring.

6. A power socket, characterized in that, The power socket has sockets for connecting to the pins of a power plug, and each socket has a socket terminal trigger buffer as described in any one of claims 1 to 5.

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