Safe electrical connector

Abstract

The present invention provides a safe electrical connector, which includes at least one electrical connection module for connecting an external plug. Each electrical connection module includes: a plurality of plug compartments, which are arranged in isolation and have plug compartment openings facing the same direction. The plug compartment openings of the plurality of plug compartments are arranged in a shape adapted to the pins of the external plug, so that the pins of the external plug can be inserted into the interior of the plug compartments through the plug compartment openings; a plurality of power connection ends, which are respectively arranged corresponding to the plurality of plug compartments; at least one of the plurality of plug compartments is a movable plug compartment, and the movable plug compartment moves as a whole when the pin is inserted; an active electrical connection end is arranged outside the internal space for contacting the pin of each active plug compartment, and the active electrical connection end is driven by the active plug compartment to approach and finally contact the corresponding power connection end, so that the active plug compartment is electrically connected to the corresponding power connection end. The solution of the present invention has simple and reliable moving parts, eliminates potential electrical safety hazards as much as possible, has a longer service life and higher reliability.

Description

Technical Field

[0001] The present invention relates to an electrical connector, and more particularly to a safety electrical connector. Background Art

[0002] Electrical connectors are the most common electrical devices in daily use. Electrical connectors provide a power interface for other electrical appliances. After the plug of an electrical appliance is inserted into the electrical connector, the plug is connected to the power supply to supply power to the electrical appliance.

[0003] The safety of electrical connectors is a part that users attach great importance to. However, the plug holes of common electrical connectors such as sockets are often exposed, posing great safety hazards. For example, it often occurs that children insert foreign objects into electrical connectors. In addition, some users may also insert the plug incorrectly due to carelessness, which will cause a short circuit, resulting in accidents such as wire explosion and combustion, posing a safety threat to the surrounding environment, and even seriously causing harm such as electric shock and burns to the human body.

[0004] Based on the above problems, some safety measures have also emerged in the prior art. For example, adding a baffle at the jack, etc. Its protection effect is limited. After a foreign object pushes open the baffle and inserts into the jack, it will still directly connect to the power supply. After long-term use, the baffle is prone to damage and has poor reliability.

[0005] In addition, some safety sockets have a pushing element built into the plug compartment. When the plug is inserted, the pushing element is pushed by the plug, passes through the action hole provided on the side wall of the plug compartment, and drives the wiring terminal to connect to the power terminal. Such a pushing element must have an action hole on the side wall of the plug compartment, with a complex structure and poor reliability, and is prone to damage problems during long-term use. Moreover, in order to ensure the sealing of the plug compartment, a sealing component needs to be provided at the action hole. The sealing component is often squeezed and rubbed by the pushing element, resulting in sealing failure and a decline in safety performance. Summary of the Invention

[0006] An object of the present invention is to provide a safety electrical connector with better safety.

[0007] A further object of the present invention is to improve the reliability of the safety electrical connector.

[0008] Another further object of the present invention is to improve the waterproof performance of the safety electrical connector.

[0009] According to one aspect of the present invention, there is provided a safety electrical connector, including at least one electrical connection module for connecting an external plug, and each electrical connection module includes:

[0010] A plurality of plug compartments, which are arranged in isolation and have plug holes facing the same direction. The plug holes of the plurality of plug compartments are arranged in a shape adapted to the pins of the external plug, so that the pins of the external plug can be inserted into the interior of the plug compartment through the plug holes.

[0011] Multiple power connection terminals, which are respectively arranged corresponding to multiple sockets.

[0012] At least one of the multiple sockets is a movable socket, and the movable socket moves integrally as the pin is inserted; an active electrical connection terminal is arranged outside the internal space for contacting the pin of each movable socket, and the active electrical connection terminal is driven by the movable socket to approach and finally contact the corresponding power connection terminal, so that the movable socket is electrically connected to the corresponding power connection terminal.

[0013] Optionally, the overall movement of the movable socket as the pin is inserted is a swing around a rotating shaft.

[0014] Optionally, the rotating shaft is arranged at the end of the movable socket far from the socket opening.

[0015] Optionally, the multiple sockets at least include a live wire socket and a neutral wire socket, and both the live wire socket and the neutral wire socket are movable sockets.

[0016] Optionally, the above-mentioned safety electrical connector further includes:

[0017] A reset member, which is arranged between the live wire socket and the neutral wire socket, and includes a first reset portion abutting against the live wire socket and a second reset portion abutting against the neutral wire socket, and the reset member is configured to provide a reset force for separating the active electrical connection terminal of the live wire socket and the active electrical connection terminal of the neutral wire socket from their respective corresponding power connection terminals, so that the live wire socket and the neutral wire socket maintain a disconnected state from their respective corresponding power connection terminals when the pin is pulled out.

[0018] Optionally, the rotating shafts of the live wire socket and the neutral wire socket are arranged in parallel, and the electrical connection module further includes:

[0019] A reset rotating shaft, which is arranged between the live wire socket and the neutral wire socket and is parallel to the rotating shafts of the live wire socket and the neutral wire socket respectively;

[0020] The reset member is a torsion spring piece, which has a central hole penetrating through the reset rotating shaft in the middle, and elastic pieces extend from the middle of the torsion spring piece to the live wire socket and the neutral wire socket respectively, serving as the first reset portion and the second reset portion.

[0021] Optionally, the socket further includes a ground wire socket, and the ground wire socket, the live wire socket and the neutral wire socket are arranged in a triangle, and

[0022] The reset member is arranged in the area surrounded by the ground wire socket, the live wire socket and the neutral wire socket, and has elastic pieces extending towards the live wire socket and the neutral wire socket respectively, and the elastic pieces serve as the first reset portion and the second reset portion respectively.

[0023] Optionally, the movable electrical connection end of the live wire socket is disposed on a side opposite to the neutral wire socket, and extends outward along the side wall of the live wire socket where it is located;

[0024] The movable electrical connection end of the neutral wire socket is disposed on a side opposite to the live wire socket, and extends outward along the side wall of the neutral wire socket where it is located; and

[0025] The extending direction of the movable electrical connection end of the live wire socket is opposite to the extending direction of the movable electrical connection end of the neutral wire socket;

[0026] The power connection end includes a live wire connection end corresponding to the live wire socket and a neutral wire connection end corresponding to the neutral wire socket. The live wire connection end is arranged on the side where the movable electrical connection end of the live wire socket extends, and the neutral wire connection end is arranged on the side where the movable electrical connection end of the neutral wire socket extends.

[0027] Optionally, the live wire connection end and the movable electrical connection end of the live wire socket have relatively arranged live wire contacts, and contact is achieved by the abutment of the live wire contacts; the neutral wire connection end and the movable electrical connection end of the neutral wire socket have relatively arranged neutral wire contacts, and contact is achieved by the abutment of the neutral wire contacts.

[0028] Optionally, each socket includes:

[0029] A housing body, whose peripheral wall is a continuous wall surface and defines a receiving cavity with a socket opening;

[0030] A pin terminal, disposed in the receiving cavity for connecting with the inserted pin;

[0031] A conductive connecting member, which is connected to the pin terminal at the bottom end of the housing body through the connecting member and extends outward from the housing body to connect with the movable electrical connection end or with the corresponding power connection end.

[0032] Optionally, each socket further includes:

[0033] A guiding member, disposed at a position in the receiving cavity close to the socket opening and having a chamfer inclined towards the receiving cavity to guide the pin to be inserted into the interior of the socket.

[0034] Optionally, each electrical connection module further includes:

[0035] A module main body, which defines an installation space for arranging a plurality of sockets and has a waterproof mating surface for exposing the socket openings of the plurality of sockets. The waterproof mating surface is provided with a waterproof groove at a position close to its own edge;

[0036] A waterproof cover plate, hermetically arranged on the waterproof mating surface, and having a waterproof strip on the side facing the waterproof mating surface for mating with the waterproof groove.

[0037] Optionally, the above-mentioned safety electrical connector is a socket strip, and the safety electrical connector further includes:

[0038] A housing, which defines an installation cavity for installing an electrical connection module therein;

[0039] A power cord, extending from the housing to connect to an external power supply;

[0040] A sealing ring, arranged at the connection between the power cord and the housing;

[0041] An electronic control board, arranged in the installation cavity and connected to the power cord;

[0042] A power busbar, extending from the electronic control board for respectively connecting to a plurality of power connection terminals.

[0043] Optionally, the housing is strip-shaped, and a plurality of electrical connection modules are sequentially arranged at intervals along the length direction of the housing; and

[0044] The power busbar includes: a live busbar and a neutral busbar, which are respectively arranged at intervals on both sides of the plurality of electrical connection modules.

[0045] Optionally, the housing includes: a base; a panel, buckled on the base to jointly form the installation cavity, and jacks are provided at corresponding positions of the insertion bays of the electrical connection modules, and a plurality of suction cups are arranged on the back of the base for adsorbing to an external support surface to fix the socket strip.

[0046] A wire storage groove is further formed on the back of the base for storing the power cord.

[0047] Optionally, the above-mentioned safety electrical connector is a surface-mounted or recessed wall socket.

[0048] In the safety electrical connector of the present invention, the movable insertion bay of the electrical connection module moves as a whole due to the insertion of the pins, driving the movable electrical connection end to approach and finally engage with the corresponding power connection end, so that the movable insertion bay is connected to the corresponding power connection end. Since the movable insertion bay moves as a whole, the moving parts are simple and reliable. Compared with complex moving parts, the service life is longer, and potential electrical safety hazards can be eliminated to the greatest extent.

[0049] Furthermore, in the safety electrical connector of the present invention, the movement mode of the movable insertion bay is a swing around a rotating shaft, the movement mode is more reliable, and the service life is long. The peripheral wall of the insertion bay is a continuous wall surface. Compared with the prior art safety socket that needs to open holes on the wall surface of the insertion bay, the sealing performance is better, and the safety is further improved.

[0050] Furthermore, in the safety electrical connector of the present invention, both the live wire insertion compartment and the neutral wire insertion compartment are movable insertion compartments. If either the live wire insertion compartment or the neutral wire insertion compartment is not inserted in place, or the inserted plug does not correspond, the power supply will not be conducted. That is, inserting a conductive body alone into any of the insertion compartments will not result in conduction, avoiding electric shock accidents.

[0051] Even further, in the safety electrical connector of the present invention, the layout structure of the electrical circuit is improved. The live wire connection end and the neutral wire connection end extend towards the corresponding insertion compartments from opposite directions respectively, facilitating the routing of the live wire and the neutral wire and improving the electrical reliability.

[0052] Even further, in the electrical connection module of the present invention, the sealing structure is also improved, enhancing the waterproof effect.

[0053] The safety electrical connector of the present invention can be a wall socket or a power strip socket, greatly improving the use safety and reliability. Without damaging the appearance structure of the socket body, no electric shock danger will occur no matter in what way any conductive object other than the adapted plug is inserted. It has good waterproof performance and will not even short-circuit when completely immersed in water.

[0054] From the following detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more clearly aware of the above and other objects, advantages, and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Some specific embodiments of the present invention will be described in detail hereinafter with reference to the accompanying drawings in an exemplary but not restrictive manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0056] Figure 1 is a schematic diagram of an electrical connection module in a safety electrical connector according to an embodiment of the present invention;

[0057] Figure 2 is Figure 1 the rear view of the electrical connection module shown;

[0058] Figure 3 is Figure 1 the exploded view of the components of the electrical connection module shown;

[0059] Figure 4 is along Figure 2 the schematic cross-sectional view taken along the cutting line A-A of the electrical connection module in;

[0060] Figure 5 is Figure 1 the exploded view of the components of the movable insertion compartment in the electrical connection module shown;

[0061] Figure 6 is Figure 1 A schematic view of an electrical connection module shown in a power-off state at an angle;

[0062] Figure 7 is Figure 1 Another schematic view of the electrical connection module shown in a power-off state at an angle;

[0063] Figure 8 is Figure 1 A schematic view of the electrical connection module shown in an electrically connected state at an angle;

[0064] Figure 9 is Figure 1 Another schematic view of the electrical connection module shown in an electrically connected state at an angle;

[0065] Figure 10 A schematic view of another electrical connection module in a safety electrical connector according to an embodiment of the present invention;

[0066] Figure 11 is Figure 10 A rear view of the electrical connection module shown;

[0067] Figure 12 is Figure 10 An exploded view of the components of the electrical connection module shown;

[0068] Figure 13 is Figure 10 A schematic view of the electrical connection module shown in a power-off state;

[0069] Figure 14 is Figure 10 A schematic view of the electrical connection module shown in a connected state;

[0070] Figure 15 A schematic view of a wall socket according to an embodiment of the present invention;

[0071] Figure 16 A schematic view of a power strip socket according to an embodiment of the present invention;

[0072] Figure 17 A schematic view of the power strip socket at another angle according to an embodiment of the present invention; and

[0073] Figure 18 An exploded view of the components of the power strip socket according to an embodiment of the present invention. Detailed implementation manners

[0074] Figure 1 A schematic view of an electrical connection module 10 in a safety electrical connector according to an embodiment of the present invention; Figure 2 is Figure 1Rear view of the electrical connection module 10 shown; Figure 3 is Figure 1 Exploded view of the components of the electrical connection module 10 shown; Figure 4 is the Figure 2 Schematic cross-sectional view of the electrical connection module 10 shown taken along the cutting line A-A; Figure 5 is Figure 1 Exploded view of the components of the movable plug-in compartment in the electrical connection module 10 shown.

[0075] The electrical connection module 10 in the safety electrical connector of this embodiment is used to connect an external plug, and the external plug can be various power plugs, such as a household AC power plug. The shape of the plug can be various standard forms, such as two-pin flat, eight-shaped flat-footed, two-pin round, three-pin flat, three-pin round, etc. This embodiment mainly takes the two-pin flat plug and the three-pin flat plug that meet the Chinese national standard as examples for introduction, and those skilled in the art can set the electrical connection module 10 that matches other specifications of plugs based on the technical idea of this embodiment.

[0076] The electrical connection module 10 includes: a plurality of plug-in compartments 110, a plurality of power connection terminals 120. Each plug-in compartment 110 is used for one pin of the plug to be inserted and is connected to a power connection terminal 120. After all the pins of the plug are inserted in place, the electrical connection module 10 is electrically connected to the power supply and can supply power to the plug.

[0077] A plurality of plug-in compartments 110 are arranged in isolation and have plug-in compartment openings 111 facing the same direction. The plug-in compartment openings 111 of the plurality of plug-in compartments 110 are arranged in a shape adapted to the pins of the external plug, so that the pins of the external plug can be inserted into the interior of the plug-in compartment 110 through the plug-in compartment openings 111. The shape of the plug-in compartment 110 and the layout of the plug-in compartment openings 111 of the electrical connection module 10 in this embodiment can be designed according to the external plug to be adapted. The pins of the plug are inserted into the interior of the plug-in compartment 110 through the plug-in compartment openings 111.

[0078] A plurality of power connection terminals 120 are respectively arranged in one-to-one correspondence with the plurality of plug-in compartments 110. Each power connection terminal 110 is used to connect a power line. For example, it can include a live wire connection terminal, a neutral wire connection terminal, a ground wire power connection terminal, etc. Correspondingly, the plug-in compartment 110 can include: a live wire plug-in compartment 112, a neutral wire plug-in compartment 113. Figure 1-5 The electrical connection module 10 of the embodiment shown includes two plug-in compartments 110, which can be a live wire plug-in compartment 112 and a neutral wire plug-in compartment 113 respectively.

[0079] At least one of the multiple plug-in compartments 110 is an active plug-in compartment. The active plug-in compartment is fixedly connected with an active electrical connection end 121 and moves integrally as the pin is inserted. The active electrical connection end 121 is driven by the active plug-in compartment to approach and finally contact the corresponding power connection end 120, so that the active plug-in compartment is electrically connected to the corresponding power connection end 120. The overall movement of the active plug-in compartment is driven by the insertion of the plug. If the type of the plug does not match the electrical connection module 10, the plug cannot cause the overall movement of the active plug-in compartment, and the active electrical connection end cannot be connected to the corresponding power connection end 120, thus ensuring that the pin is not electrified. Similarly, if other conductors are mistakenly inserted into the active plug-in compartment, the conductors cannot also cause the overall movement of the active plug-in compartment at the same time, so the electrical connection module 10 can also ensure that the conductors are not electrically connected to the power connection end 120.

[0080] The active electrical connection end 121 is arranged outside the internal space of the active plug-in compartment for contacting the pin. For example, the active electrical connection end 121 can be arranged on the outer side of the peripheral wall of the cabin body of the active plug-in compartment, or further extend outward from the peripheral wall of the cabin body.

[0081] The live wire plug-in compartment 112 and the neutral wire plug-in compartment 113 can both be active plug-in compartments. Correspondingly, the power connection end 120 includes a live wire connection end 122 that cooperates with the live wire plug-in compartment 112 and a neutral wire connection end 123 corresponding to the neutral wire plug-in compartment 113. The simultaneous movement of the live wire plug-in compartment 112 and the neutral wire plug-in compartment 113 is limited by the relative positions of the pins. Only after the matching pins are inserted simultaneously will they be connected to the live wire connection end 122 and the neutral wire connection end 123, and the power supply will be in a conducting state. If any one of the live wire plug-in compartment 112 and the neutral wire plug-in compartment 113 does not insert the matching pin, the power supply will not be in a conducting state. That is, the electrical connection module will only turn on the power supply when a suitable plug is inserted.

[0082] The overall movement of the active plug-in compartment as the pin is inserted is a swing around a rotating shaft 131. The movement mode of the swing is restricted by the rotating shaft. Compared with the way of translational pushing, the movement mode is more reliable and has a long service life. The rotating shaft 131 can be arranged in the area near the bottom of the side wall of the active plug-in compartment, that is, the end of the active plug-in compartment far from the plug-in opening. That is, the rotating shaft 131 is arranged at the position near the bottom of the active plug-in compartment.

[0083] The electrical connection module 10 can also include: a reset member 141. The reset member 141 is used to keep the active electrical connection end 121 disconnected from the corresponding power connection end 120 in the normal state (the state when the plug is not inserted); in addition, the reset member 141 provides a certain damping for the active plug-in compartment.

[0084] The electrical connection module 10 of this embodiment realizes the waterproof function by improving the sealing performance. The electrical connection module 10 further includes: a module main body 151 and a waterproof cover plate 152. The module main body 151 defines an installation space for arranging a plurality of plug-in compartments 110, and has a waterproof mating surface 153 that exposes the plug-in openings 111 of the plurality of plug-in compartments 110. A waterproof groove 154 is provided at a position near the edge of the waterproof mating surface 153. The module main body 151 provides a fixing structure for the plug-in compartment 110 and the power connection terminal 120. The module main body 151 provides a sheath 155 made of insulating material around the plug-in compartment 110. The sheath 155 provides corresponding shaft holes (located inside the module main body and not shown in the figure) at corresponding positions of the rotating shaft 131 of the movable plug-in compartment to cooperate with the movable plug-in compartment. The module main body 151 provides an installation structure for the plug-in compartment 110 on the one hand and limits the movable plug-in compartment on the other hand.

[0085] The waterproof cover plate 152 is arranged on the waterproof mating surface 153. The surface facing the waterproof mating surface 153 has a waterproof strip that cooperates with the waterproof groove 154, and the surface opposite to the waterproof mating surface 153 can be formed into a concave-convex surface 156. The panel of the safety electrical connector housing can have a shape that cooperates with the concave-convex surface 156 at a position opposite to the concave-convex surface 156. The waterproof cover plate 152 can be made of materials such as resin and rubber that have a certain reversible deformation. The waterproof cover plate 152 realizes the overall sealing of the electrical connection module 10 through tight crimping with the module main body 151 and the safety electrical connector housing.

[0086] Each plug-in compartment 110 can include: a compartment body 130, a pin terminal 132, and a conductive connecting piece 135. The compartment body 130 serves as the main body of the plug-in compartment 110 and is made of insulating material. It defines a receiving cavity 137 with a plug-in opening 111. The pin terminal 132 is arranged in the receiving cavity 137 and is used to connect with the inserted pin. The shape of the pin terminal 132 can be set to match the shape of the pin. For example, for a flat pin, the pin terminal 132 can be as Figure 4 , 5 shown, forming an elastic clip shape. In some embodiments, the pin terminal 132 extends a screw 133 towards the bottom of the compartment body 130, and the pin terminal 132 can be fixed in the compartment body 130 through a cooperating nut 134.

[0087] The conductive connecting member 135 is connected to the pin terminal 132 through a connecting member at the bottom end of the cabin 130 (i.e., the other end opposite to the insertion cabin opening 111), and extends outward from the cabin 130. For the movable insertion cabin, the conductive connecting member 135 can be connected to the movable electrical connection end 121. In some other embodiments, the movable electrical connection end 121 can be integrally formed with the conductive connecting member 135, and a part of the conductive connecting member 135 outside the internal space (accommodation cavity 137) for contacting the pins serves as the movable electrical connection end 121. The specific shape of the conductive connecting member 135 can be such that it extends from the bottom end of the cabin 130 to the side wall of the cabin 130, extends from the side wall of the cabin 130 in the direction of the insertion cabin opening 111, then protrudes out of the cabin 130, and finally faces the power connection end 120. That is to say, the conductive connecting member 135 extends from the bottom of the insertion cabin 110 to the side wall of the cabin 130 and extends outward from the side wall. The outside of the cabin 130 can also have a fixing structure for fixing the conductive connecting member 135.

[0088] For other insertion cabins other than the movable insertion cabin, the conductive connecting member 135 can be connected to the corresponding power connection end. For example, the conductive connecting member 135 of the ground wire insertion cabin can be directly connected to the ground wire terminal.

[0089] In the embodiment where the pin terminal 132 is matched with the nut 134 through the screw 133, the conductive connecting member 135 can also have a screw hole adapted to the screw 133. That is, the conductive connecting member 135 is connected to the pin terminal 132 from the bottom of the insertion cabin through the nut 134 (or other connecting members), and there is no need to open a hole in the peripheral wall of the cabin 130.

[0090] The outside of the cabin 130 can also have a protruding rotating shaft 131, which cooperates with the insertion cabin opening 111 in the module main body 151 to realize the overall swing of the movable insertion cabin.

[0091] The peripheral wall of the cabin 130 is a continuous wall surface and defines an accommodation cavity 137 with an insertion cabin opening 111. Compared with the prior art where a safety socket needs to open a hole in the wall surface of the insertion cabin, without the need to set an additional sealing structure, the sealing performance is better, further improving the safety.

[0092] The insertion cabin 110 can also include a guiding member 136. The guiding member 136 is arranged near the insertion cabin opening 111 in the accommodation cavity 137, that is, at the top of the accommodation cavity 137, and has a chamfer (or called an inclined surface) inclined towards the accommodation cavity 137 to guide the pins to insert into the insertion cabin 110. On the one hand, the guiding member 136 facilitates the smooth insertion of the plug, and on the other hand, it can also limit the position of the pins in the accommodation cavity 137.

[0093] Figure 1-5The illustrated embodiment is an electrical connection module 10 that mates with a two - pin plug. The plurality of receptacles includes a live - wire receptacle 112 and a neutral - wire receptacle 113, and both the live - wire receptacle 112 and the neutral - wire receptacle 113 are movable receptacles. In the electrical connection module 10 of this embodiment, the guides 136 of the live - wire receptacle 112 and the neutral - wire receptacle 113 can be both disposed at a position near the center of the receptacle 110 and gradually extend obliquely inwardly into the receptacle 110 to guide the pins and smoothly connect with the pin terminals 132.

[0094] Figure 6 、 7 is Figure 1 a schematic diagram of the electrical connection module 10 shown in a power - off state, while Figure 8 、 9 is Figure 1 a schematic diagram of the electrical connection module 10 shown in a connected state.

[0095] A reset member 141 is disposed between the live - wire receptacle 112 and the neutral - wire receptacle 113. It includes a first reset portion 143 that abuts against the live - wire receptacle 112 and a second reset portion 144 that abuts against the neutral - wire receptacle 113. The reset member 141 can be configured to provide a reset force that moves the movable electrical connection ends 121 of the live - wire receptacle 112 and the neutral - wire receptacle 113 away from their respective corresponding power connection ends 120, so that the live - wire receptacle 112 and the neutral - wire receptacle 113 maintain a disconnected state from their respective corresponding power connection ends 120 when the pins are pulled out. The reset member 141 can preferably be a single - piece member, making the structure simple and reliable.

[0096] The rotation shafts 131 of the live - wire receptacle 112 and the neutral - wire receptacle 113 are arranged in parallel. A reset rotation shaft 142 is disposed between the live - wire receptacle 112 and the neutral - wire receptacle 113 and is parallel to the rotation shafts 131 of the live - wire receptacle 112 and the neutral - wire receptacle 113 respectively. The reset member 141 can be a torsion spring leaf, which has a central hole through which the reset rotation shaft 142 passes in the middle. The torsion spring leaf extends elastic pieces towards the live - wire receptacle 112 and the neutral - wire receptacle 113 respectively from the middle as the first reset portion 143 and the second reset portion 144. The first reset portion 143 and the second reset portion 144 respectively abut against the live - wire receptacle 112 and the neutral - wire receptacle 113. As the pins are inserted deeper, the reset member 141 is gradually compressed; that is, as the insertion progresses, the reaction force (reset force) provided by the reset member 141 becomes larger and larger.

[0097] The movable electrical connection end 121 of the live wire socket 112 is arranged on the side opposite to the neutral wire socket 113 and extends outward along the side wall of the live wire socket 112 where it is located; the movable electrical connection end 121 of the neutral wire socket 113 is arranged on the side opposite to the live wire socket 112 and extends outward along the side wall of the neutral wire socket 113 where it is located; and the extending direction of the movable electrical connection end 121 of the live wire socket 112 is opposite to the extending direction of the movable electrical connection end 121 of the neutral wire socket 113; the power connection end 120 includes a live wire connection end 122 corresponding to the live wire socket 112 and a neutral wire connection end 123 corresponding to the neutral wire socket 113. The live wire connection end 122 is arranged on the side where the movable electrical connection end 121 of the live wire socket 112 extends, and the neutral wire connection end 123 is arranged on the side where the movable electrical connection end 121 of the neutral wire socket 113 extends.

[0098] At Figure 6 、 8 the angle shown, the rotating shafts 131 of the live wire socket 112, the neutral wire socket 113 and the reset rotating shaft 142 are all arranged in parallel vertically. The live wire socket 112 is located on the right side, while the neutral wire socket 113 is located on the left side. The conductive connecting piece 135 of the live wire socket 112 extends from the bottom of the live wire socket 112 to the right side wall and then extends downward. The extending part is the movable electrical connection end 121; while the neutral wire socket 113 is located on the left side, the conductive connecting piece 135 of the neutral wire socket 113 extends from the bottom of the live wire socket 112 to the left side wall and then extends upward. The extending part is the movable electrical connection end 121. The live wire connection end 122 extends from below to the live wire socket 112 and is opposite to the movable electrical connection end 121 of the live wire socket 112 at the end. The neutral wire connection end 123 extends from above to the live wire socket 112 and is opposite to the movable electrical connection end 121 of the neutral wire socket 113 at the end.

[0099] In the normal state, the live wire socket 112 and the neutral wire socket 113 are in an inverted V shape as a whole from top to bottom, that is, the live wire socket 112 and the neutral wire socket 113 are inclined towards the center respectively. As the plug gradually penetrates, the plug pins overcome the restoring force of the restoring member 141, causing the live wire socket 112 and the neutral wire socket 113 to swing towards the center respectively. That is, the live wire socket 112 and the neutral wire socket 113 move closer to each other. Finally, due to the limitation of the plug pins of the plug, the live wire socket 112 and the neutral wire socket 113 are arranged in parallel, and the movable electrical connection end 121 of the live wire socket 112 and the movable electrical connection end of the neutral wire are in contact with the live wire connection end 122 and the neutral wire connection end 123. When inserting any conductive object other than the adapted plug, the force applied will be counteracted by the reaction force of the inverted V structure, and the greater the force applied, the greater the counteracting force, and the movable socket cannot be electrically connected to the power connection end 120 at the same time at all.

[0100] The live wire connection terminal 122 and the movable electrical connection terminal 121 of the live wire socket 112 can have oppositely arranged live wire contacts 138, and are connected through the live wire contacts 138; the neutral wire connection terminal 123 and the movable electrical connection terminal 121 of the neutral wire socket 113 have oppositely arranged neutral wire contacts 139, and are connected through the neutral wire contacts 139. By connecting with contacts, the reliability of the contact can be ensured.

[0101] If either the live wire socket 112 or the neutral wire socket 113 is not plugged in place, or the plug is mismatched, the power supply will not be conducted. That is, inserting a conductive body alone into any socket will not conduct electricity unless the appearance structure is damaged, avoiding electric shock accidents.

[0102] This embodiment also provides an electrical connection module 20 adapted to a three-pin plug. Figure 10 It is a schematic diagram of another electrical connection module 20 in the safety electrical connector according to an embodiment of the present invention; Figure 11 is Figure 10 the rear view of the shown electrical connection module 20; Figure 12 is Figure 10 the exploded view of the components of the shown electrical connection module 20. The electrical connection module 20 of this embodiment is used to connect a three-pin plug. In addition to the live wire socket 112 and the neutral wire socket 113, the socket can also include a ground wire socket 114. The ground wire socket 114, the live wire socket 112, and the neutral wire socket 113 are arranged in a triangle, and the reset member 141 is arranged in the area surrounded by the ground wire socket 114, the live wire socket 112, and the neutral wire socket 113, and has elastic pieces extending towards the live wire socket 112 and the neutral wire socket 113 respectively. The elastic pieces are respectively used as the first reset portion 143 and the second reset portion 144. The first reset portion 143 and the second reset portion 144 can respectively be U-shaped elastic sheet structures. The ground wire socket 114 can be fixedly arranged.

[0103] The live wire socket 112 and the neutral wire socket 113 in this embodiment are also movable sockets, and the structures of the live wire socket 112 and the neutral wire socket 113 themselves are the same as those of the previous embodiment or the movable socket. The difference is only that the layout and relative positions are different from those of the electrical connection module 10. The socket itself can also include: a socket body 130, a pin terminal 132, and a conductive connection member 135. The extension lines of the rotating shafts 131 of the live wire socket 112 and the neutral wire socket 113 form a certain angle, such as 60 degrees. The reset member 141 can be fixed in the central area surrounded by the ground wire socket 114, the live wire socket 112, and the neutral wire socket 113 through a connection member.

[0104] Figure 13 is Figure 10 the schematic diagram of the shown electrical connection module 20 in the power-off state, and Figure 14 isFigure 10 Schematic diagram of the electrical connection module 20 shown in the connected state.

[0105] The movable electrical connection end 121 of the live wire socket 112 can be arranged on the side opposite to the neutral wire socket 113 and extend outward along the side wall of the live wire socket 112 where it is located; the movable electrical connection end 121 of the neutral wire socket 113 can be arranged on the side opposite to the live wire socket 112 and extend outward along the side wall of the neutral wire socket 113 where it is located. That is, the movable electrical connection end 135 of the live wire socket 112 and the movable electrical connection end 135 of the neutral wire socket 113 are respectively located on the outer sides of the live wire socket 112 and the neutral wire socket 113.

[0106] In addition, the extending direction of the movable electrical connection end 121 of the live wire socket 112 is opposite to the extending direction of the movable electrical connection end 121 of the neutral wire socket 113; Figure 13 、 14 Taking the shown angle as an example, the movable electrical connection end 121 of the live wire socket 112 extends obliquely downward, while the movable electrical connection end 121 of the neutral wire socket 113 extends obliquely upward. In the normal state, the live wire socket 112 and the neutral wire socket 113 are inclined toward the center as a whole from top to bottom. As the plug gradually penetrates, the pins overcome the restoring force of the restoring member 141, causing the live wire socket 112 and the neutral wire socket 113 to swing inward respectively. That is, the live wire socket 112 and the neutral wire socket 113 gradually converge inward. Finally, due to the limitation of the pins of the plug, the movable electrical connection end 121 of the live wire socket 112 and the movable electrical connection end 121 of the neutral wire socket 113 come into contact with the live wire connection end 122 and the neutral wire connection end 123, realizing electrical connection. If any of the live wire socket 112 and the neutral wire socket 113 is not plugged in place, or the plug-in connectors do not correspond, or other conductive bodies are mistakenly inserted into the movable socket, it can be ensured that the movable socket will not be electrically connected to the corresponding power connection end 120 at the same time, and the power supply will not be conducted. That is, when a conductive body is inserted alone into any socket, it will not conduct electricity, avoiding electric shock accidents.

[0107] The electrical connection module 10 and the electrical connection module 20 of the above embodiments respectively improve the layout structure of the electrical circuit. The live wire connection end 122 and the neutral wire connection end 123 extend from opposite directions to the corresponding socket 110 respectively, which is convenient for the routing of the live wire and the neutral wire, and can be conveniently applied to various electrical connectors, such as wall sockets and extension board sockets.

[0108] The safety point connector of this embodiment can be a wall socket or an extension board socket. Figure 15Schematic diagram of a wall socket 30 according to an embodiment of the present invention. The wall socket 30 may include one or more of the electrical connection modules described above. For example, the wall socket 30 is provided with a two-hole electrical connection module 10 and a three-hole electrical connection module 20 to meet the usage requirements of different plugs. The wall socket 30 may be a surface-mounted (entirely exposed outside the wall) or recessed-mounted (installed in a cavity of the wall) wall socket.

[0109] Figure 16 Schematic diagram of a power strip socket 40 according to an embodiment of the present invention. Figure 17 Schematic diagram of the power strip socket 40 from another angle according to an embodiment of the present invention. Figure 18 Exploded view of the components of the power strip socket 40 according to an embodiment of the present invention.

[0110] The power strip socket 40 of this embodiment may include one or more of the electrical connection modules described above. The power strip socket 40 may include: a housing 410, a power cord 420, a sealing ring 414, an electronic control board 415, a power bus bar, and a switch button 419.

[0111] An installation cavity for installing the electrical connection modules 10 and 20 is defined inside the housing 410. It may be elongated, and a plurality of electrical connection modules 10 and 20 are arranged at intervals along the length direction of the housing 410. Figures 15 to 17 In the illustrated embodiment, the power strip socket 40 may be provided with two three-hole electrical connection modules 20 and two two-hole electrical connection modules 10 along the length direction. In actual implementation, the specific number and specifications of the electrical connection modules may be adjusted according to needs.

[0112] The housing 410 includes: a base 411, a panel 412, and a plurality of suction cups 413. The panel 412 is snapped onto the base 411 to jointly form the installation cavity, and jacks are provided at positions corresponding to the plug holes of the electrical connection modules 10 and 20. A plurality of suction cups 413 are provided on the back of the base 411 for adsorbing to an external support surface to fix the power strip socket 40, and a wire storage groove 416 is further formed on the back of the base 411 for storing the power cord 420. The wire storage groove 416 may be a cross groove. The panel 412 may have a shape that cooperates with the concave-convex surface 156 in the area opposite to the electrical connection modules 10 and 20, thereby further improving the sealing performance.

[0113] The power cord 420 extends out of the housing 410 to connect to an external power supply. The end of the power cord 420 has a plug 421 for connecting to other sockets. The sealing ring 414 is provided at the connection between the power cord 420 and the housing 410 to ensure the seal at the power cord 420 and improve the waterproof performance.

[0114] The electronic control board 415 is disposed in the installation cavity and connected to the power supply line 420. Switching devices and protection devices (such as voltage stabilizing modules, surge protection modules, fuse modules, lightning protection modules, etc.) can be provided on the electronic control board 415. In some embodiments, a power conversion module can also be added to convert the industrial frequency AC power into low-voltage DC power. A plurality of low-voltage sockets 417 (such as USB sockets) can also be provided on the housing 410 of the wiring board socket 40 for outputting low-voltage DC power to meet the charging requirements of electronic devices. The low-voltage socket 417 can be disposed at the junction of the side wall and the front wall of the panel 412 for convenient use.

[0115] The power bus can include a live wire bus 432 and a neutral wire bus 431, which are respectively disposed on both sides of the plurality of electrical connection modules 10, 20 at intervals. Figures 15-17 At the shown angle, the live wire bus 432 can be close to the lower part of the housing 410, and the live wire connection end 122 extends from the lower part to the corresponding live wire socket 112. The neutral wire bus 431 can be close to the upper part of the housing 410, and the neutral wire connection end 123 extends from the upper part to the corresponding live wire socket 112.

[0116] In addition, the power bus can include a ground wire bus (blocked by the electrical connection modules 10, 20 and not shown in the figure), and the ground wire bus extends along the middle of the installation cavity and is connected to the terminal of the ground wire socket 114.

[0117] The wiring board socket 40 of this embodiment can also be provided with an indicator light 418. Each indicator light 418 is connected to the live wire socket 112 and the neutral wire socket 113 of an electrical connection module 10, 20 through a cable, so as to emit light after the electrical connection module 10, 20 is powered on to indicate the power conduction state. The switch button 419 is used to switch the wiring board socket 40 as a whole.

[0118] The safety electrical connector of this embodiment greatly improves the use safety and reliability. There is no electric shock risk no matter any conductive object other than the adapted plug is inserted in any way. The test results of the actual trial-produced products show that its waterproof performance is excellent, and it will not short-circuit even when completely immersed in water.

[0119] In the description of this embodiment, it should be understood that the orientation or positional relationship indicated by the terms "central", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0120] 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 quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features, that is, one or more of such features. In the description of the present invention, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined. When a feature "comprises or includes" a certain or certain features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0121] Up to this point, those skilled in the art should recognize that although a number of exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A safety electrical connector, comprising at least one electrical connection module for connecting an external plug, each of the electrical connection modules comprising: a plurality of plug compartments, which are arranged in isolation from each other and have plug compartment openings facing the same direction, the plug compartment openings of the plurality of plug compartments being arranged in a shape adapted to the pins of the external plug, for the pins of the external plug to be inserted into the interior of the plug compartments through the plug compartment openings, each of the plug compartments comprising a compartment body, the peripheral wall of the compartment body being a continuous wall surface and defining a receiving cavity having the plug compartment opening; a plurality of power connection terminals, which are respectively arranged corresponding to the plurality of plug compartments; at least one of the plurality of plug compartments is a movable plug compartment, and the movable plug compartment moves as a whole as the pin is inserted; an active electrical connection terminal is provided outside the internal space for contacting the pin of each of the movable plug compartments, and the active electrical connection terminal is driven by the movable plug compartment to approach and finally contact the corresponding power connection terminal, so that the movable plug compartment is electrically connected to the corresponding power connection terminal, and the overall movement of the movable plug compartment as the pin is inserted is a swing around a rotating shaft; the rotating shaft is arranged at the end of the movable plug compartment away from the plug compartment opening.

2. The safety electrical connector according to claim 1, wherein the plurality of plug compartments at least include a live wire plug compartment and a neutral wire plug compartment, and both the live wire plug compartment and the neutral wire plug compartment are movable plug compartments.

3. The safety electrical connector according to claim 2, further comprising: a reset member, which is arranged between the live wire plug compartment and the neutral wire plug compartment, and includes a first reset portion abutting against the live wire plug compartment and a second reset portion abutting against the neutral wire plug compartment, and the reset member is configured to provide a reset force for separating the active electrical connection terminal of the live wire plug compartment and the active electrical connection terminal of the neutral wire plug compartment from their respective corresponding power connection terminals, so that the live wire plug compartment and the neutral wire plug compartment maintain a disconnected state from their respective corresponding power connection terminals when the pins are pulled out.

4. The safety electrical connector according to claim 3, wherein the rotating shafts of the live wire plug compartment and the neutral wire plug compartment are arranged in parallel, and the electrical connection module further comprises: a reset rotating shaft, which is arranged between the live wire plug compartment and the neutral wire plug compartment and is parallel to the rotating shafts of the live wire plug compartment and the neutral wire plug compartment respectively; the reset member is a torsion spring piece, and a central hole for penetrating the reset rotating shaft is provided in the middle thereof, and elastic pieces extending from the middle to the live wire plug compartment and the neutral wire plug compartment respectively are used as the first reset portion and the second reset portion.

5. The safety electrical connector according to claim 3, wherein the plug compartment further includes a ground wire plug compartment, the ground wire plug compartment, the live wire plug compartment and the neutral wire plug compartment are arranged in a triangle, and the reset member is arranged in the area surrounded by the ground wire plug compartment, the live wire plug compartment and the neutral wire plug compartment, and has elastic pieces extending towards the live wire plug compartment and the neutral wire plug compartment respectively, and the elastic pieces are used as the first reset portion and the second reset portion respectively.

6. The safety electrical connector according to claim 2, wherein The movable electrical connection end of the live wire socket is arranged on the side opposite to the neutral wire socket and extends outward along the side wall of the live wire socket where it is located; The movable electrical connection end of the neutral wire socket is arranged on the side opposite to the live wire socket and extends outward along the side wall of the neutral wire socket where it is located; and The extending direction of the movable electrical connection end of the live wire socket is opposite to the extending direction of the movable electrical connection end of the neutral wire socket; The power supply connection end includes a live wire connection end corresponding to the live wire socket and a neutral wire connection end corresponding to the neutral wire socket. The live wire connection end is arranged on the side where the movable electrical connection end of the live wire socket extends, and the neutral wire connection end is arranged on the side where the movable electrical connection end of the neutral wire socket extends; The live wire connection end and the movable electrical connection end of the live wire socket have relatively arranged live wire contacts, and contact is achieved by the abutment of the live wire contacts; The neutral wire connection end and the movable electrical connection end of the neutral wire socket have relatively arranged neutral wire contacts, and contact is achieved by the abutment of the neutral wire contacts.

7. The safety electrical connector according to claim 1, wherein each of the sockets further includes: Pin terminals, arranged in the accommodating cavity for connecting with the inserted pins; Conductive connecting pieces, connected to the pin terminals at the bottom end of the socket body through the connecting pieces and extending outward from the socket body to be connected with the movable electrical connection end or with the corresponding power supply connection end; And Guide pieces, arranged at a position in the accommodating cavity close to the opening of the socket and having chamfers inclined towards the accommodating cavity to guide the pins to be inserted into the interior of the socket.

8. The safety electrical connector according to claim 1, wherein each of the electrical connection modules further includes: Module main body, which defines an installation space for arranging the plurality of sockets and has a waterproof mating surface for exposing the socket openings of the plurality of sockets. The waterproof mating surface is provided with a waterproof groove at a position close to its own edge; Waterproof cover plate, hermetically arranged on the waterproof mating surface, and having a waterproof strip mating with the waterproof groove on the side facing the waterproof mating surface.

9. The safety electrical connector according to claim 1 is a wiring board socket, and further includes: A housing, which defines an installation cavity for installing the electrical connection module inside; Power supply wires, extending out from the housing to connect to an external power supply; Sealing rings, arranged at the connection between the power supply wires and the housing; An electronic control board, arranged in the installation cavity and connected to the power supply wires; Power supply busbars, led out from the electronic control board for respectively connecting with the plurality of power supply connection ends, wherein The housing is strip-shaped, and a plurality of the electrical connection modules are arranged at intervals in sequence along the length direction of the housing; And The power supply busbars include: a live wire busbar and a neutral wire busbar, which are respectively arranged at intervals on both sides of the plurality of electrical connection modules; The housing includes: A base; A panel, buckled on the base to jointly form the installation cavity, and provided with jacks at corresponding positions of the socket openings of the electrical connection modules, and A plurality of suction cups are arranged on the back of the base and used for adsorbing to an external support surface to fix the wiring board socket, and a wire storage groove is further formed on the back of the base for storing the power cord.

10. The safety electrical connector according to claim 1 is a surface-mounted or recessed wall socket.

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