Plugging-resistant high-power socket with zero electric shock, zero spontaneous combustion and zero poor contact
The novel outlet design with a dual-layer rotating switch and integrated self-fusing ground fault interrupter addresses the issues of arc flashes and self-heating in traditional outlets by ensuring safe and stable connections through instant power cutoff.
Patent Information
- Application Number
- CN202510457024.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-13
- Publication Date
- 2025-07-15
AI Technical Summary
The existing socket structure leads to poor contact, easy arc flash, high risk of spontaneous combustion, and insufficient leakage protection function, which cannot effectively prevent spontaneous combustion disasters.
A socket structure with rack slide, double-layer tower rotary switch and self-combustion and leakage through is designed to achieve a large-plane face-to-face connection between the plug and the external power supply. It is equipped with a self-combustion and leakage protection switch. The power is cut off when the plug is inserted, and the power is cut off first and then disconnected when it is unplugged. Double safety prevents spontaneous combustion.
It realizes a safe power environment with zero electric shock, zero spontaneous combustion and zero contact defects. The power is cut off when the plug is plugged in and power is cut off when it is unplugged. Double insurance prevents spontaneous combustion and ensures the safety and reliability of the electrical appliances.
Smart Images
Figure CN120320122A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a socket for connecting an electrical appliance to an external power source, which uniquely integrates the leakage protection of the electrical appliance, the socket, and the power supply facility, and mutually controls the safe use of electricity as a "big switch" type functional connector, thus realizing an original connector technology field of "three zeros", "three switches" and "five major differences". Background Art
[0002] At present, all sockets on the market are equipped with safety doors. The slope gap formed by the matching sockets is getting bigger and bigger. It is difficult to plug and unplug, causing arc flash. It is easy for foreign objects to be inserted and electric shock. The safety door is unsafe. The two-pin plug is not grounded, the five-hole "group" is impractical and helpless, and the three-pin plug is grounded but the leakage protection is after the spontaneous combustion disaster. Sockets of various varieties in the market still retain the traditional structure of a hundred years. The plug piece is clamped by the elastic arc of the "U"-shaped opening of the socket reed to form a "line-to-face" contact. The small area has a large resistance, is easy to loosen and shake, and has poor contact, resulting in multiple surges with high peaks, easy to flash, fast temperature rise, and high heat. In addition, the horn opening of the reed is often deformed by the plug-in and plug-out action or its own fatigue deformation, resulting in the relaxation and loss of the clamping force, and poor contact becomes a serious "morbidity" with a short plug-in life. Summary of the invention
[0003] The present invention does not change the existing jack shape structure and national standard requirements, nor does it change people's original operating habits. Figure 1 The socket is designed with three core components: (two-plug and three-plug) rack slides (2 and 3), a double-layer tower rotary switch (4), and a self-ignition leakage current relay (5). Overall structural features: the socket is normally without electricity, and the plug of the electrical appliance serves as the "plug-in switch" of the socket. When the electrical appliance and the external power supply are inserted, the socket is powered; when the plug is pulled out, the power is turned off first and then the electrical appliance is disconnected from the socket, and the socket is disconnected from the external power supply, which is different from the market socket. The electrical appliance plug realizes a "face-to-face" large-plane stable connection with the external power supply in the socket, which is different from the market socket "line-to-line" poor contact. If the electrical appliance is overloaded or suddenly overloaded or has poor contact or the line is aging or overtime charging and use, causing spontaneous combustion, the self-ignition leakage current relay will work with the external power supply leakage protection switch to immediately cut off the power and forcibly cut off the power itself to prevent spontaneous combustion in advance, which is different from the market socket. The waste "five holes" are equipped with a self-ignition leakage current relay in the second and third plugs, which can prevent spontaneous combustion more quickly, and the circuit wiring is safer and in place, so there is no need to worry about the third plug being connected incorrectly, and the second plug being ungrounded, which is different from the fourth type of socket on the market. The upper and lower ends of the plug entering the socket are positioned by the upper and lower layers of the socket, and the four sides are balanced and stable, without looseness and poor contact, which is different from the fifth type of socket on the market. The "five major differences" ensure the safe use of high-power electrical appliances to achieve the "three zero" and "three switches" effects.
[0004] Overall technical solution: Figure 10Take the middle two plug as an example, remove the upper cover (6) and the base (7), and the enlarged picture clearly shows that the plug is first inserted into the socket, and the lower gear of the double tower converts the translation of the rack slide into its own rotation, driving the upper elastic spring (4.2) to quickly connect the electrical appliance (K2) and the external power supply wiring piece (5.1) to the action process trajectory and verify whether the socket is energized. Secondly, the leakage grounding piece (5.2) in the self-ignition leakage circuit in the socket is close to the key point where the rotating elastic spring connects the external power supply and the electrical appliance. In the overheating stage before spontaneous combustion is about to occur, the self-ignition leakage circuit and the leakage protection switch can immediately cut off the power supply and force the self-power off, and the overheating and cooling spontaneous combustion are extinguished. The leakage protection switch currently does not have a separate function of preventing spontaneous combustion first. Because the three plugs with unique grounding are inserted outside the socket, the three plugs of fire, zero and ground are quite far apart. When the spontaneous combustion burns from the socket to the outside of the plug, the three wires are short-circuited by melting the plastic at the end of the three wires. This delayed spontaneous combustion has become a disaster. The overall technical solution has the following features: 1. The socket is normally without electricity, and the electrical plug ( Figure 10 (K) The upper cover of the open socket is inserted without resistance, and the plastic rack slide slope is placed on the upper cover. The exposed plug piece is not charged (K1). Insert the plug into the socket in the plug box with a little force (K2). The upper and lower ends of the plug piece are positioned by two sockets and are stressed on all sides so that it does not fall off. When pulling out the plug, turn off the power first and then disconnect it from the socket. When you leave, turn off the light and disconnect the external power supply in the socket. There is no safety door and no electricity to touch. The zero-electric shock structure and the "plug-in switch" of the electrical plug control the safety of electricity use.
[0005] 2, Figure 2 , Figure 3 It is a two-plug and three-plug rack slide. The plug insertion force is forced to move forward in a directional manner on the rack slide slope (indicated by m) to compress the spring and drive the lower gear of the double-layer tower to realize its own rotation, completing the functional conversion in three directions of insertion, translation and rotation. Pull out the plug, the rack slide and the double-layer tower are reset, and the power in the socket is cut off and returns to normal.
[0006] 3. Figure 4 The double-layer tower rotary switch is located in the upper cover and the second plug box. The basic structure is that the lower gear receives the directional translation of the rack slide and converts it into its own rotation, driving the upper platform elastic spring to rotate, quickly connecting or disconnecting the external power supply and the electrical appliance, achieving a large-surface stable connection, solving the bottleneck problem of the market socket "line opposite" and being difficult to bear the power consumption of high-power electrical appliances. Whether the socket is energized is controlled by the "rotary switch".
[0007] 4. Figure 5It is a self-ignition leakage switch, which consists of an external power supply wiring piece 5.1, a leakage grounding piece 5.2, a leakage connection seat 5.3, and a compression spring 5.4. The key position L2 is indicated. Firefighting practice has proved that the spontaneous combustion point occurs at the plug connection, and the grounding piece is just next to it, separated by only a layer of open thin-walled insulating plastic wall; once there is an overload or poor contact here, sparks and overheating, the open thin-walled plastic wall will first melt and collapse, and the grounding piece will pass through under the action of the external push pressure (compression spring) and quickly connect to the external power supply wiring piece. The current enters the ground, and the leakage protection switch immediately cuts off the power, and the overheating and spontaneous combustion are extinguished. If there is a sudden jam, the grounding piece will continue to force the wiring piece to fall off and cut off the power, and the double insurance will prevent spontaneous combustion first. Filling the gap in the actual application of leakage protection switches, from then on, electrical appliances have their own complete and unique "control switch" control to prevent spontaneous combustion.
[0008] 5. Figure 8 Figure 9 For two or three plug boxes, the rack slide moves horizontally on the two semi-circular arc convex (L3) tracks in the box, and is controlled and oriented by the two side walls. The two plugs are inserted into the slide in parallel at the same time, and the slide is difficult to start when a single hole is inserted. The plug box is designed with a plug hole in the same position as the upper cover, forming a double-layer plug hole to locate the upper and lower ends of the plug piece, getting rid of the current socket that relies on the upper cover plug hole to locate the upper end of the plug piece, and the lower end of the two plugs swings back and forth with a large amplitude and poor contact.
[0009] 6. Figure 6 The upper cover is designed with a separation wall (L1) inside the socket to prevent foreign objects from entering and touching the non-electric elastic spring under normal conditions; when the socket is working, the two plugs are positioned by the double-layer socket, with a vertical wall of a slide plate pressing the middle in front and two side walls of the socket supporting the upper and lower ends in the back; the two large planes on the left and right of the middle are clamped by two elastic springs over a large area. The force is balanced, stable and resistant to plugging and unplugging. There is no risk of copper parts being damaged by plugging and unplugging, and there is no worry about the life of plugging and unplugging. The power troubles caused by poor contact and the spontaneous combustion of electrical appliances caused by them will be eliminated.
[0010] Highlights "three zeros": the socket of the present invention is normally powered off and has no electricity, with the jack open. When working, the jack is closed by the plug. When pulling out the plug, the power is turned off first and then disconnected from the socket. The number of casualties from electric shock will be close to zero; the spontaneous combustion and leakage protection switch has the function of cutting off the power supply and self-powering off. The double insurance prevents spontaneous combustion in advance, and the risk of spontaneous combustion of electrical appliances during use will be close to zero; the upper and lower ends of the plug are positioned when inserted into the socket, the front, back, left and right forces are stable and reliable, and the large flat surface has a stable connection, so poor electrical contact will be close to zero.
[0011] Highlights: "Three switches": the electrical plug is equipped with a "dip switch" for the socket; the double-layer tower is equipped with a "rotary switch" to check whether the socket is energized; the spontaneous combustion leakage is equipped with a "control switch" for the electrical appliance. Safe electricity use is controlled by "switches" at all levels. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 General assembly drawing. Taking the five-hole as an example for drawing, the number of jacks is determined by market demand. For the sake of clear and concise graphic lines, the connecting line between the external power supply terminal (5.1) and the light-emitting diode (10) is not drawn in the view. The two connecting lines of the leakage grounding piece (5.2) and the three-pin grounding piece (9.1) are not shown schematically connected together. The fastening of the upper cover and the base with four bolts is not drawn. There are three lines in the figure pointing to 4, all indicating the assembly position and shape characteristics of the same part. One line points to the double-layer tower positioned in the upper cover and the socket box, one line points to the elastic reed in the upper layer platform of the double-layer tower, and one line points to the lower layer gear of the double-layer tower, which is convenient for reading the drawing and understanding. The meaning of the two lines is the same. Figure 2 The two-pin rack slide is a part drawing. The key point is to use the m character to represent the arc-shaped slope in the middle section of the slide. During the downward insertion process of the plug, the arc-shaped bottom plane and the two side planes at the lower end of the plug piece are used to push the slide forward, realizing the innovation of the socket structure to achieve the purpose of power on and off. Figure 3 The three-pin rack slide is a part drawing. The description content is the same as Figure 2 。 Figure 4 The double-layer tower rotary switch is a sub-assembly drawing. It is composed of part 4.1 (double-layer tower) and 4.2 (elastic reed). The lower layer of the double-layer tower is a passive gear, which rotates by an angle driven by the rack slide, thereby driving the upper-layer elastic reed to connect or disconnect the plug piece and the external power supply terminal, presenting the function of the rotary switch. Figure 5 The self-ignition leakage switch is a sub-assembly drawing. It is composed of part 5.1 (external power supply terminal), 5.2 (leakage grounding piece), 5.3 (leakage switch seat), and 5.4 (pressure spring). The working principle of the key components: When the socket is misused and heated, the high heat softens the thin-walled plastic at the L2 indication, and the grounding piece penetrates through the thin-walled plastic layer under the action of 5.4 and is short-circuited with the external power supply terminal to generate a large amount of leakage current. The leakage protection switch installed outdoors immediately cuts off the power to cool down and prevent combustion; if the leakage protection switch fails, the high heat continues to rise during the softening process at L2. At this time, 5.4 forcibly pushes 5.1 out of the leakage switch seat, cutting off the power and cooling down to prevent combustion at the critical moment, achieving double protection and zero self-ignition. Figure 6 The upper cover is a part drawing. L1 indicates the isolation wall added to ensure zero electric shock. Figure 7 The base is a part drawing. Figure 8 The two-pin socket box is a part drawing. L3 indicates the two convex rib tracks in the socket box and the two jacks in the tracks, which is beneficial for the rack slide to slide and the lower end of the plug piece to be positioned. Figure 9 The three-pin socket box is a part drawing. The description is the same as Figure 8 。 Figure 10For the demonstration diagram, the whole process of the plug being inserted into the socket, and how the elastic reed in the double-layer tower rotary switch achieves stable connection and rapid disconnection on a large plane between the plug blade and the external power connection blade. K indicates the complete plug. K1 indicates that the left half of the plug enters the socket and stays on the ramp of the rack slide. The exposed plug blade is not charged, indicating that it is inserted first and then powered on. K2 indicates that the right half of the plug is inserted firmly to the bottom at the K1 position. The elastic reed connects the external power connection blade and the plug blade to conduct current. The two mating surfaces of the plug and the upper cover close the jack. The two ends of the plug blade are positioned by the jacks in the upper cover and the socket box. When the plug is pulled out, the rack slide first resets to cut off the power and then disengages from the socket. There is no electricity that can be touched during the insertion and removal process. The three arrows Figure 10 indicate the downward insertion direction of the plug, the forward translation direction of the rack slide, and the rotation direction of the double-layer tower. The reset of the rack slide relies on the function of two springs arranged at the front end.
[0023] Reference numerals: 1, reset spring; 2, two-pin rack slide ( Figure 2 ), 3, three-pin rack slide ( Figure 3 ), 4, double-layer tower rotary switch ( Figure 4 in which: 4.1 double-layer tower; 4.2 elastic reed), 5, self-igniting and leakage-conducting device ( Figure 5 in which: 5.1 external power connection blade; 5.2 leakage grounding blade; 5.3 leakage-conducting seat; 5.4 compression spring), 6, upper cover ( Figure 6 ), 7, base ( Figure 7 ), 8, two-pin socket box ( Figure 8 ), 9, three-pin socket box ( Figure 9 in which: 9.1 three-pin grounding blade), 10, light-emitting diode Detailed implementation manners
[0024] The production process of this patented product is the same as that of market sockets. It has a simple structure, reduced dimensional accuracy, and higher safety performance in electricity use. Compared with commonly used market sockets, the copper material usage is significantly reduced through measurement. There are fewer parts to be assembled, and the assembly operation is simpler. Among them, power cords, bolts, springs, etc. are purchased parts; plastic parts such as upper covers, bases, double-layer towers, two-pin and three-pin socket boxes, and leakage-conducting seats are flame-retardant plastics and are all injection-molded through plastic molds; grounding blades are made of ordinary H62 brass strips, and elastic reeds are made of phosphor bronze or tin bronze strips and are formed through progressive stamping molds. The copper material utilization rate is high, the process is simple, and it can be completed by assembly line or automated operation. The product quality inspection complies with national standards. It is an invention patent new product that prevents electricity use safety first, is applicable to the market, and is beneficial to social stability. There is a prototype model to verify that the "large switch" type functional characteristics of this patent have become a fact.
Claims
1. A plug-in and pull-out high-power socket with zero electric shock, zero spontaneous combustion and zero poor contact, which has three core bodies (Figures 1 and 10): a rack slide, a double-layer tower rotary switch, and a self-ignition leakage switch; the overall structural feature is that the socket is normally without electricity, and the plug of the electrical appliance serves as the "plug-in switch" of the socket. When the electrical appliance is plugged in and unplugged, the power is cut off, and the socket is also disconnected from the external power supply, which is different from the market socket one; the plug enters the socket and realizes a "face-to-face" stable connection with the external power supply, which is different from the market socket "line-to-line" poor contact two; if the electrical appliance is about to spontaneously ignite during the power use process, the self-ignition leakage switch will work with the external power supply facility leakage protection switch to immediately cut off the power and forcibly cut off the power itself, preventing spontaneous combustion in advance, which is different from the market socket three; the "five-hole" is equipped with a self-ignition leakage switch in the second plug and the third plug, which can prevent spontaneous combustion faster and the circuit wiring connection It is safer and more in place, which is different from the fourth socket on the market; the upper and lower ends of the plug entering the socket are positioned, and the force on all four sides is balanced, without looseness, shaking, and poor contact, which is different from the fifth socket on the market; the overall operation process characteristics take Figure 10 as an example, the plug is inserted into the socket, and the lower gear of the double-layer tower converts the translation of the rack slide into its own rotation, driving the upper elastic spring to quickly connect the electrical appliance (K2) and the external power supply. The movement process trajectory and verify whether the socket is energized; secondly, the grounding plate in the socket is close to the key point where the rotating elastic spring connects the external power supply and the electrical appliance. Before spontaneous combustion, it can be immediately connected to the ground to implement power-off protection, innovatively realizing "three zeros", "three switches", and "five major differences", and the leakage protection of electrical appliances, sockets, and external power facilities constitutes a unique unified "big switch" type functional connector that controls the safe use of electricity.
2. According to claim 1, a high-power socket that is pluggable and has zero electric shock, zero spontaneous combustion, and zero poor contact, has the following appearance characteristics: the socket is normally without electricity, the electrical plug (indicated by K in Figure 10) enters the upper cover of the open socket and lands on the slope of the plastic rack slide, the exposed plug piece is not electrified (K1), the socket is positioned by inserting it into the plug box with a little force, the upper cover socket is closed, and the upper and lower ends and four sides of the plug piece are stable (indicated by K2), when the plug is pulled out, the power is turned off before disconnecting from the socket, the light is turned off when the person leaves, and the external power supply is disconnected in the socket, there is no safety door and no electricity to touch, and the zero electric shock structure and the electrical plug are responsible for the "plug-in switch" to control electricity safety.
3. According to claim 1, a high-power socket that is resistant to plugging and unplugging and has zero electric shock, zero spontaneous combustion, and zero poor contact, is directionally installed in the plug box with two or three rack slides (Figures 2 and 3), and is characterized in that: the plug insertion force is forced to move the compression spring forward on the rack slide slope (m) and drives the lower gear of the double-layer tower to realize its own rotation, completing the functional conversion in the three directions of insertion, translation and rotation (indicated by three arrows in Figure 10). When the plug is pulled out, the rack slide and the double-layer tower are reset, and the external power supply in the socket is disconnected to return to normal without electricity.
4. According to the zero electric shock, zero spontaneous combustion, zero poor contact, plug-in and unplug high-power socket described in claim 1, the double-tower rotary switch (Figure 4) is positioned in the upper cover and the second plug box, and is characterized in that: the lower gear receives the directional translation of the rack slide and converts it into its own rotation, driving the elastic spring in the upper platform to rotate and quickly connect or disconnect the external power supply and electrical appliances, achieving a large-surface stable connection, solving the bottleneck structural problem of the "line-to-face" socket in the market that is difficult to bear the power consumption of high-power electrical appliances, and whether the socket is energized is controlled by the "rotary switch".
5. According to claim 1, a plug-in and unplug-resistant high-power socket with zero electric shock, zero spontaneous combustion and zero poor contact, the spontaneous combustion leakage circuit (Figure 5) is characterized by the following structural features: it is composed of an external power supply wiring piece 5.1, a leakage grounding piece 5.2, a leakage circuit seat 5.3, and a compression spring 5.4, and the key position L2 is indicated; fire protection practice has proved that spontaneous combustion often occurs at the connection point between the electrical appliance and the external power supply, and the grounding piece is just adjacent, separated by only a layer of open thin-walled insulating plastic wall; once there is an overload or poor contact and sparks to produce overheating, the open thin-walled plastic wall will first melt and collapse, and the grounding piece will pass through under the action of external force and quickly connect to the external power supply wiring piece, and the current will enter the ground, the leakage protection switch will immediately cut off the power, and the overheating will cool down and the spontaneous combustion will be extinguished; if a sudden jam occurs, the grounding piece will continue to force the wiring piece to fall off and cut off the power, and the double insurance will prevent spontaneous combustion first, fill the gap in the actual application of the leakage protection switch, and the electrical appliance will have its own complete and independent "control switch" to prevent spontaneous combustion.
6. According to claim 1, a high-power socket that is pluggable and has zero electric shock, zero spontaneous combustion, and zero poor contact, the basic characteristics of the two- and three-plug boxes (Figures 8 and 9) are: the two semi-circular arc convex grooves (L3) in the box provide low translational resistance for the rack slide, and are oriented by the two side walls, making it difficult to insert a single hole to start the slide; a socket is designed at the same position as the upper cover to form a double-layer socket to position the two ends of the plug piece up and down, thus getting rid of the dilemma of the market socket that relies on the upper cover socket to position the upper end of the plug piece, and the lower end of the second plug swings back and forth with a large amplitude and poor contact.
7. According to the high-power socket with zero electric shock, zero spontaneous combustion and zero poor contact as described in claim 1, the upper cover (Figure 6) is characterized in that: an isolation wall (L1) is designed on the inner side of the socket to prevent foreign objects from entering and touching the non-electric copper parts under normal conditions; when working, the upper cover and the plug box realize double-layer socket positioning for the two plug blades, with a rack slide in the front to press the middle part, and two socket walls in the back to support the upper and lower ends, and the two large planes on the left and right of the middle end are clamped by two elastic springs over a large area, so the force is balanced, stable and resistant to plugging and unplugging, and there is no risk of copper parts being damaged by the plugging and unplugging action, and there is no worry about the plugging and unplugging life, which solves the electricity troubles caused by poor contact and the spontaneous combustion of electrical appliances caused by it, and will tend to zero.