Power socket with temperature sensing and earth leakage protection functions

By using a lifting block design and linkage components, the problem of sealing failure in the plug's half-insertion state is solved. This achieves leakage protection while simultaneously releasing the clamping state and sealing the socket, ensuring the safety and reliability of the socket. It also resolves the conflict between clamping and power-off functions in existing technologies, ensuring the safety and reliability of electrical equipment.

CN120978465AInactive Publication Date: 2025-11-18SHANGHAI JINYU ELECTRONIC TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202511127661.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-13
Publication Date
2025-11-18
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In the existing technology, the seal fails when the plug is partially inserted, causing water to accumulate in the socket. After the leakage protection is activated, the accumulated water submerges the separation parts, which may cause secondary conduction. In addition, the clamping and power-off functions conflict, making it difficult to quickly and safely plug and unplug the plug.

Method used

The design employs a lifting block, which uses a chamfered bevel to push the conductive copper plate apart and lift the plug. Combined with the linkage of the clamping and sealing components, it releases the clamping state and seals the plug when the leakage protection is triggered, increasing the water storage space and reducing the risk of water accumulation.

Benefits of technology

It effectively resolves the functional conflict between the leakage protection action and the clamping mechanism, ensures rapid insertion and removal operations, reduces the risk of short circuits caused by water seepage, improves waterproof performance and anti-shaking stability, and ensures the safe operation of electrical equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the field of power sockets, and discloses a power socket with a temperature sensing leakage protection function, which comprises a jacking assembly, a temperature sensing module and a temperature sensing module, the jacking assembly comprises a jacking block, a flow channel and a piston, the jacking block is arranged under a pin, the edge of the jacking block is chamfered, and the width of the jacking block is greater than that of the pin; the lower end of the jacking block is matched with a flow channel in an air-tight sealing mode, the flow channel is provided with a plurality of ports, a piston is arranged on the inner side of the flow channel in a sliding mode, and when short circuit or electric leakage occurs to trigger the driving structure, the driving structure drives the piston to slide along the flow channel, and damping liquid in the flow channel pushes the jacking block to move upwards. The conductive copper plates are pushed to be separated towards the two sides through the chamfered inclined surfaces of the jacking blocks, and the pins are jacked synchronously, so that the release of the clamping state and the lifting of the pins are effectively realized when leakage protection is triggered. The single-action double-effect linkage design helps to solve the functional conflict between the leakage protection action and the clamping mechanism, and provides convenient guarantee for the rapid plugging operation of the ship socket under the emergency power-off working condition.
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Description

Technical Field

[0001] This disclosure pertains to the field of power sockets, and specifically relates to a power socket with temperature sensing leakage protection function. Background Technology

[0002] During ship operation, power outlets are crucial components for connecting electrical equipment to power sources, and their performance is of paramount importance. Especially in the unique environment of ship decking, where waves crashing against the hull leave some water on the deck, the outlets must possess continuous waterproofing capabilities to prevent liquid from seeping into the supporting shell.

[0003] However, a marine safety socket with publication number CN112821128A has a sealing door gear on the outside of the socket, which drives the sealing door to waterproof and prevent corrosion of the copper sheet waterproof shell and copper sheet. When the socket is not in use, the sealing door is completely closed on the outside of the socket to seal and protect the socket. However, when the plug is half inserted into the socket, the plug pins are already in contact with the copper sheet. At this time, the electrical appliance connected to the socket is energized, so the user does not mistakenly believe that it is fully inserted. At this time, there is a gap between the socket panel and the plug, and the plug pins are blocking the sealing door from closing. In this state, if it rains or rain splashes, water can easily enter the inside of the socket, which may lead to the risk of water seepage into the support shell.

[0004] When the leakage protection is triggered, although it can separate the conductive copper sheet from the pin, when the water seeping into the support shell is above the lowest point of the pin and the conductive copper sheet, the already separated conductive copper sheet and the pin will re-conduct through the water, causing a risk of electric shock.

[0005] In addition, to meet the deck's vibration resistance requirements, a forced clamping socket, such as the one with application number CN216818808U, uses inserts to enter the gaps between conductive copper sheets. The support column is forced into the guide rail, and the inserts continue to be inserted against the protective layer. The support column moves downward in the guide rail, and the gaps between the conductive copper sheets become smaller, thereby tightening the inserts and effectively solving the problem of the inserts easily loosening after being inserted into the socket.

[0006] However, the conductive copper sheet is a U-shaped elastic copper sheet, which clamps the pins through its own elastic deformation. But this design causes structural interference when the leakage protection is triggered: after the elastic copper sheet separates, the bottom bulges up due to the deformation recovery force. During the ship's rocking, it accidentally comes into contact with the pins, causing a conflict between the clamping and power-off functions, thus hindering quick and safe plugging and unplugging. Summary of the Invention

[0007] To address the shortcomings of existing technologies, the purpose of this disclosure is to provide a power socket with temperature sensing leakage protection function, which solves the technical problem in existing technologies where the plug fails to seal when partially inserted, causing water to accumulate inside the socket, and after the leakage protection is activated, the accumulated water submerges the separation component, leading to secondary conduction.

[0008] The objective of this disclosure can be achieved through the following technical solutions:

[0009] A power socket with temperature sensing leakage protection function includes: a support shell, the upper end of which has at least one socket.

[0010] The plug has at least one pin symmetrically arranged at the bottom of the plug, the pin being adapted to be inserted into the socket. The inner side of the support shell is provided with a partition parallel to the upper end face of the support shell, and the partition is provided with a through hole corresponding to the socket.

[0011] A sealing component is slidably provided at the lower end of the socket;

[0012] Separable conductive copper plates are provided on both sides of the pin;

[0013] Furthermore, a clamping assembly is fixed on the side of the conductive copper plate away from the pin. The clamping assembly is used to drive the conductive copper plate to move towards the side closer to the corresponding pin, and to clamp and fix the conductive copper plate and the pin after the pin is inserted into the socket.

[0014] A lifting component is provided directly below the pin, and one end of the lifting component is connected to the drive structure;

[0015] The lifting assembly includes a lifting block, a flow channel, and a piston. The lifting block is located directly below the pin. The edges of the lifting block are chamfered, and the width of the lifting block is greater than the width of the pin. The lower end of the lifting block is hermetically sealed with a flow channel, which has multiple ports. A piston is slidably disposed inside the flow channel.

[0016] The two side ports of the flow channel are respectively movably connected to the lifting blocks below the two pins, and the upper port of the flow channel is connected to the driving structure.

[0017] When a short circuit or leakage occurs and triggers the drive structure, the drive structure drives the piston to slide along the flow channel, and the damping fluid in the flow channel pushes the lifting block to move upward.

[0018] When the lifting block moves upward:

[0019] The chamfered bevel and sidewall of the lifting block are used to push the conductive copper plates on both sides to overcome the clamping force of the clamping assembly and separate them to both sides, so that the conductive copper plates are no longer in electrical contact with the pins;

[0020] At the same time, the upper surface of the lifting block contacts the bottom surface of the pin and pushes the pin to move upward. The upward movement of the pin causes the sealing assembly to reset upward and block the socket.

[0021] In some disclosures, the clamping assembly includes a base plate, a support plate, and a return spring. The base plate is located at the lower end of the conductive copper plate, and support plates are respectively provided at both ends of the base plate. A return spring is fixed between the support plate and the conductive copper plate.

[0022] In some disclosures, the conductive copper plate comprises a non-conductive skeleton and copper sheets, with the outer side of the skeleton wrapped with copper sheets to form a conductive copper plate.

[0023] In some disclosures, the upper surface of the base plate is provided with a sliding groove, and the lower end of the frame is fixed with a protrusion that matches the sliding groove.

[0024] In some disclosures, the driving structure includes an electromagnet and an armature, with the armature movably connected to the upper port of the flow channel, and the armature slidably mounted inside the electromagnet.

[0025] In some disclosures, a support spring is fixed to the side of the armature near the electromagnet, a housing is slidably disposed on the outer side of the armature, and a shape memory metal is disposed between the housing and the armature.

[0026] In some disclosures, the sealing assembly includes a guide rod, a sealing bracket, and a rubber slider, with the guide rod fixed between the support shell and the partition plate, and multiple sealing brackets slidably disposed on the outer side of the guide rod, with rubber sliders slidably disposed on the sidewalls of the multiple sealing brackets.

[0027] In some disclosures, the upper and lower end faces of the rubber slider are chamfered, and the chamfering direction is set on the side closer to the side wall of the sealing frame. The width of the pin and the rubber slider is greater than the width of the through hole, and the distance between the through hole and the pin is less than the moving path of the lifting block.

[0028] In some disclosures, the lifting block is made of hard plastic, and the upper surface of the lifting block has multiple grid slots.

[0029] In some disclosures, the conductive copper plates on both sides of a single pin are respectively provided with mutually compatible plugs and slots.

[0030] The explanations of the nouns, conjunctions, or adjectives used in the above technical solutions are as follows:

[0031] A fixed connection refers to a connection in which parts or components are fixed in place and there is no relative movement between them;

[0032] A rotating connection is a connection between parts that allows the parts to rotate relative to each other.

[0033] Threaded connections are a type of detachable fixed connection with advantages such as simple structure, reliable connection, and convenient assembly and disassembly. They are widely used in mechanical engineering and connection structure fields.

[0034] A sliding connection is a connection between parts that allows the parts to slide against each other.

[0035] The beneficial effects of this disclosure are:

[0036] 1. By using the chamfered bevel of the lifting block to push the conductive copper plate to both sides and simultaneously lift the plug, the clamping state is effectively released and the plug is lifted when the leakage protection is triggered. This single-action dual-effect linkage design helps to resolve the functional conflict between the leakage protection action and the clamping mechanism, providing convenient protection for the rapid plugging and unplugging operation of ship sockets in emergency power outage conditions;

[0037] 2. By raising the prongs to increase the water storage space inside the casing, combined with the drainage design of the lifting block grid groove and physical isolation when stationary, the risk of water accumulation submerging conductive components is effectively reduced. This active anti-electric shock mechanism reduces the risk of short circuits caused by water seepage under the compact structure, providing support for safe electrical operation in harsh marine environments;

[0038] 3. By clamping and fixing the stalled lifting block with the clamping assembly and simultaneously resetting the sealing assembly, the conductive path is effectively blocked and the socket is sealed and reinforced after a fault. This state-maintaining design helps improve waterproof performance and anti-sway stability, providing technical assurance for the long-term reliability of ship deck sockets. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0040] Figure 1 This is an exploded structural diagram of an embodiment of this disclosure;

[0041] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this disclosure;

[0042] Figure 3 This is a schematic diagram of the inner structure of the support shell according to an embodiment of the present disclosure;

[0043] Figure 4 This is an embodiment of the present disclosure. Figure 3 A top-view diagram;

[0044] Figure 5 This is an embodiment of the present disclosure. Figure 4 A schematic diagram of the AA cross-section;

[0045] Figure 6 This is a schematic diagram of the overall structure of the clamping assembly and conductive copper plate according to an embodiment of this disclosure;

[0046] Figure 7 This is a schematic diagram of the overall structure of the lifting block according to an embodiment of the present disclosure.

[0047] In the diagram: 1. Support shell; 101. Socket; 2. Plug; 21. Pin; 3. Sealing assembly; 31. Guide rod; 32. Sealing frame; 33. Rubber slider; 4. Conductive copper plate; 41. Skeleton; 42. Copper sheet; 411. Protrusion; 421. Insert block; 422. Slot; 5. Clamping assembly; 51. Base plate; 52. Support plate; 53. Return spring; 511. Slide groove; 6. Lifting assembly; 61. Lifting block; 62. Flow channel; 63. Piston; 611. Grid groove; 7. Drive structure; 71. Electromagnet; 72. Armature; 73. Support spring; 721. Outer shell; 722. Memory metal; 8. Partition; 81. Through hole. Detailed Implementation

[0048] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0049] Please refer to Figures 1 to 7 A power socket with temperature sensing leakage protection function includes: a support shell 1, which has at least one socket 101 at its upper end;

[0050] The plug 2 has at least one pin 21 symmetrically arranged at the bottom of the plug 2. The pin 21 is suitable for insertion into the socket 101. The inner side of the support shell 1 is provided with a partition 8 parallel to the upper end surface of the support shell 1, and the partition 8 is provided with a through hole 81 corresponding to the socket 101.

[0051] A sealing component 3 is slidably provided at the lower end of the socket 101;

[0052] Separable conductive copper plates 4 are provided on both sides of the pin 21;

[0053] Furthermore, a clamping component 5 is fixed on the side of the conductive copper plate 4 away from the pin 21. The clamping component 5 is used to drive the conductive copper plate 4 to move towards the side closer to the corresponding pin 21, and to clamp and fix the conductive copper plate 4 and the pin 21 after the pin 21 is inserted into the socket 101.

[0054] A lifting component 6 is located directly below the pin 21, and one end of the lifting component 6 is connected to the drive structure 7;

[0055] The lifting assembly 6 includes a lifting block 61, a flow channel 62, and a piston 63. The lifting block 61 is located directly below the insert 21. The edges of the lifting block 61 are chamfered, and the width of the lifting block 61 is greater than the width of the insert 21. The lower end of the lifting block 61 is gas-tightly fitted with the flow channel 62, which has multiple ports. The piston 63 is slidably arranged inside the flow channel 62.

[0056] The two side ports of the flow channel 62 are movably connected to the lifting block 61 below the two pins 21, and the upper port of the flow channel 62 is connected to the drive structure 7.

[0057] When a short circuit or leakage occurs and triggers the drive structure 7, the drive structure 7 drives the piston 63 to slide along the flow channel 62, and the damping fluid in the flow channel 62 pushes the lifting block 61 to move upward.

[0058] When the lifting block 61 moves upward:

[0059] The chamfered bevel and sidewall of the lifting block 61 push the conductive copper plates 4 on both sides to overcome the clamping force of the clamping assembly 5 and separate them to both sides, so that the conductive copper plates 4 are no longer in electrical contact with the pins 21.

[0060] At the same time, the upper surface of the lifting block 61 contacts the bottom surface of the plug 21 and pushes the plug 21 to move upward. The upward movement of the plug 21 causes the sealing component 3 to reset upward and block the socket 101.

[0061] In use, the plug 2's pins 21 are inserted into the socket along the socket hole 101, with the lower end of the pins 21 inserted between the two conductive copper plates 4 directly below. The conductive copper plates 4 on both sides are then moved to the sides, and the clamping assembly 5 tightly adheres the conductive copper plates 4 to the outside of the pins 21, thus energizing the plug 2. When a short circuit occurs in the socket, the drive structure 7 drives the piston 63 to slide along the flow channel 62 towards the side closer to the lifting block 61. As the piston 63 moves, it squeezes the damping fluid at the bottom of the piston 63 and the lifting block 61, pushing the lifting block 61 upwards. When the lifting block 61 moves upwards, the chamfered surface at the upper end of the lifting block 61 pushes the conductive... The copper plate 4 moves to both sides, separating the conductive copper plate 4 from the side wall of the pin 21. The chamfered surface at the corner improves the smoothness of the insertion of the lifting block 61 into the conductive copper plate 4, which helps to reduce the interference between the lifting block 61 and the conductive copper plate 4. At the same time, the drive structure 7 is located in the middle of the flow channel 62. When the drive assembly moves downward to squeeze the damping fluid in the flow channel 62, according to Pascal's law, the damping fluid will expand outward evenly, thereby driving the piston 63 in the flow channel 62 to slide to both sides, so that the lifting blocks 61 below the two pins 21 can move upward synchronously, thereby reducing the friction when the pins 21 move upward.

[0062] During the upward movement of the lifting block 61, the upper surface of the lifting block 61 contacts the bottom surface of the pin 21 and pushes the pin 21 upward. Since the width of the lifting block 61 is greater than the width of the pin 21, the distance between the two conductive copper plates 4 can be increased as the lifting block 61 gradually moves upward. When the lifting block 61 moves to its widest point, the distance between the conductive copper plates 4 is at its maximum. At the same time, the clamping component 5 on the outside of the conductive copper plates 4 clamps the conductive copper plates 4 to the outer wall of the lifting block 61. After the upward force of the lifting block 61 disappears, the clamping component 5 clamps and fixes the position of the lifting block 61, so that the lifting block 61 stops between the two adjacent conductive copper plates 4 after short circuit, preventing the two conductive copper plates 4 from contacting the pin 21 again. This makes it difficult for the conductive copper plates 4 to contact the pin 21 when the hull is rocking.

[0063] As the lifting block 61 pushes the plug pin 21 upward, it causes the sealing component 3 to block the socket 101 again. This allows the sealing component 3 to reseal the socket 101 while the plug 2 is partially inserted into the socket 101, thus reducing the risk of rainwater entering the socket 101 and causing a short circuit. After the lifting device separates the plug pin 21 from the conductive copper plate 4, rainwater submerges the plug pin 21 and the conductive copper plate 4, causing them to be energized again through the rainwater. This improves the safety of further unplugging the plug 2.

[0064] The upward movement of the lifting block 61 simultaneously releases the clamping state (opening the conductive copper plate 4) and moves the plug 21 upward. Lifting the plug 21 actively increases the bottom space, providing a larger volume to accommodate any seeping water. This significantly reduces the risk of the bottom of the socket being submerged and conducting electricity, perfectly resolving the conflict of the plug 2 being clamped and difficult to remove when the residual current circuit breaker trips. Furthermore, after the plug 21 is lifted, the vertical distance between the bottom of the plug 21 and the inner bottom surface of the casing is significantly increased, thereby increasing the potential water storage space and reducing the risk of water submerging the bottom of the socket and causing conductivity.

[0065] Please refer to Figures 3 to 6 The clamping assembly 5 includes a base plate 51, a support plate 52 and a return spring 53. The base plate 51 is located at the lower end of the conductive copper plate 4, and the two ends of the base plate 51 are respectively provided with support plates 52, and the return spring 53 is fixed between the support plate 52 and the conductive copper plate 4.

[0066] Support plates 52 are located on both sides of the base plate 51. The two support plates 52 are fixed to the conductive copper plates 4 on opposite sides by return springs 53. When the return springs 53 are in their original length, the distance between the conductive copper plates 4 is less than the thickness of the pins 21. When the pins 21 are inserted between the two conductive copper plates 4, the return springs 53 are in a compressed state. The return springs 53 clamp the conductive copper plates 4 to the pins 21, so that a stable connection is provided between the conductive copper plates 4 and the pins 21 during the swaying of the hull. At the same time, the return springs 53 can be made of insulating materials such as plastic or wrapped with insulating material on the outside of the return springs 53 to prevent the return springs 53 from diverting the current in the conductive copper plates 4, thereby reducing the uneven current distribution.

[0067] Of course, in some existing technologies, for a single pin 21, the conductive copper plates 4 on both sides of the pin 21 are integral U-shaped copper plates with openings at the top. The conductive copper plates 4 are narrower at the top and wider at the bottom. During the insertion of the pin 21, the thickness of the pin 21 itself pushes the conductive copper plates 4 to expand to both sides, and the elastic force of the conductive copper plates 4 itself clamps the pin 21. However, the elastic modulus of the conductive copper plates 4 is lower than that of the spring, so as the number of insertions and removals increases, these stresses will cause fatigue damage to the material, resulting in a decrease in elasticity. Furthermore, in this integral conductive copper plate 4, the bottom of the copper plate is an arc-shaped sidewall, making it difficult for the lifting block 61 to be inserted from the bottom. Moreover, the contact surface between the arc-shaped sidewall and the inner wall of the support shell 1 is a line contact, which makes it easy for the conductive copper plate 4 to tilt to one side when the lifting block 61 moves upward, making it difficult to separate from the pin 21. In addition, the integral conductive copper plate 4 usually wraps around the bottom of the pin 21, so it is also difficult to push the pin 21 away from the conductive copper plate 4 by pushing from bottom to top.

[0068] Please refer to Figure 6 The conductive copper plate 4 includes a non-conductive skeleton 41 and a copper sheet 42. The outer side of the skeleton 41 is wrapped with the copper sheet 42 to form the conductive copper plate 4.

[0069] The non-conductive frame 41 provides support for the copper sheet 42, thereby improving the stability of the conductive copper plate 4 during the swaying of the ship and reducing the possibility of the copper sheet 42 bending due to the swaying of the ship, causing the end of the copper sheet 42 to bend towards the side closer to the pin 21 and come into contact with the pin 21, thus forming a spark. The non-conductive frame 41 improves the stability of the conductive copper plate 4.

[0070] Please refer to Figure 6The upper surface of the base plate 51 is provided with a groove 511, and the lower end of the frame 41 is fixed with a protrusion 411 that matches the groove 511. When the return spring 53 drives the conductive copper plate 4 to slide, the conductive copper plate 4 slides along the groove 511 through the protrusion 411 to improve the stability of the movement of the conductive copper plate 4. At the same time, since the protrusion 411 and the groove 511 are located at the bottom of the conductive copper plate 4, when the lifting block 61 moves upward, it contacts the protrusion 411 on the bottom surface of the conductive copper plate 4 first. Due to the hardness of the conductive copper plate 4 itself, the conductive copper plate 4 moves to both sides as a whole, so that the conductive copper plate 4 and the pin 21 are quickly separated. Compared with the traditional pure copper plate, the conductive copper plate 4 with the frame 41 has a smaller deformation when the stress is concentrated at the bottom, so it can be separated from the pin 21 in time.

[0071] Please refer to Figures 5 to 6 The drive structure 7 includes an electromagnet 71 and an armature 72. The upper port of the flow channel 62 is movably connected to the armature 72, and the armature 72 is slidably installed inside the electromagnet 71.

[0072] The electromagnet 71 includes a coil and an iron core. When the coil is energized, a magnetic field is generated around the iron core. This magnetic field acts on the armature 72, generating an upward attractive force on it. The driving force used by the electromagnet 71 as a tripping mechanism is existing technology and will not be described in detail here. When the attractive force is strong enough, it overcomes the constraint of gravity on the armature 72, causing it to be attracted to the electromagnet 71. When an overload or short circuit occurs in the circuit, the magnetic field inside the electromagnet 71 becomes disordered, exerting a force on the magnet that moves it away from the electromagnet. This causes the bottom end of the armature 72 to move along the inner wall of the flow channel 62 deeper into the channel. The damping fluid in the flow channel 62 pushes the piston 63 to slide at both ends, thereby triggering the lifting device to move upward. At the same time, the armature 72 is set vertically downward, and gravity further enhances the impact force when the armature 72 descends. The damping fluid is a perfluoropolyether oil or an alkylnaphthalene synthetic oil, which has a low viscosity to reduce the consumption of driving force generated by the damping fluid on the drive structure 7 and to reduce the reaction time of triggering the drive assembly 7 to move upward to the lifting block 61.

[0073] Please refer to Figure 5An outer shell 721 is slidably mounted on the outer side of the armature 72, and a shape memory metal 722 is disposed between the outer shell 721 and the armature 72. At room temperature, the shape memory metal 722 is in a compressed state, at which point the distance between the outer shell 721 and the armature 72 is minimal. When downward pressure is applied to the armature 72 by the electromagnet 71, the outer shell 721, the shape memory metal 722, and the armature 72 move downwards as a whole. At this point, the influence of the outer shell 721 and the shape memory metal 722 on the movement of the armature 72 is minimal. If the temperature inside the support shell 1 becomes too high, the shape memory metal 722 recovers its original shape and pushes the armature 72 downwards, thereby triggering the drive structure 7. The drive structure 7 is triggered by temperature changes, and the phase change expansion of the shape memory metal 722 drives the armature 72 to move independently, effectively achieving redundant protection triggering when the temperature exceeds the limit. This dual-mode triggering design (electromagnetic drive + temperature-sensitive drive) can improve the response reliability of the drive structure under abnormal high-temperature conditions.

[0074] Please refer to Figure 5 A support spring 73 is fixed to the side of the armature 72 near the electromagnet 71.

[0075] By changing the number of coil turns and the core material of the electromagnet 71, the magnetic force of the electromagnet 71 can be altered. When the magnetic force of the electromagnet 71 is between 3 and 7 N, the elastic force of the support spring 73 is between 3 and 5 N, thus overcoming the constraint force of the support spring 73 on the armature 72 and keeping the support spring 73 in a compressed state. When an overload or short circuit fault occurs in the circuit, the elastic restoring force of the support spring 73 further enhances the impact force when the armature 72 descends.

[0076] Please refer to Figures 3 to 5 The sealing assembly 3 includes a guide rod 31, a sealing frame 32, and a rubber slider 33. The guide rod 31 is fixed between the support shell 1 and the partition plate 8. Multiple sealing frames 32 are slidably arranged on the outer side of the guide rod 31, and rubber sliders 33 are slidably arranged on the side walls of the multiple sealing frames 32.

[0077] Please refer to Figure 5 The upper and lower end faces of the rubber slider 33 are chamfered, with the chamfering direction being towards the side wall of the sealing frame 32. The width of the insert 21 and the rubber slider 33 is greater than the width of the through hole 81, and the distance between the through hole 81 and the insertion hole 101 is less than the moving path of the lifting block 61. The chamfering facilitates the insertion of the rubber slider 33 into the through hole 81 and the insertion hole 101.

[0078] When pin 21 is inserted into socket 101, the side wall of pin 21 inserts into the middle of sealing frame 32, and at the same time, the side wall of pin 21 is tightly fitted with rubber slider 33. As plug 2 moves downward, it drives sealing frame 32 downward, causing the lower end face of sealing frame 32 to fit against the upper end face of partition 8. Continuing to move downward, rubber slider 33 slides down along the inner wall of sealing frame 32 and inserts into the gap between through hole 81 and the side wall of pin 21. Utilizing the deformable property of rubber, the chamfered end of rubber slider 33 fills the gap between pin 21 and through hole 81 through deformation, thus blocking through hole 81 and reducing the entry of external materials into the socket. This results in the through hole 81 at the upper end of partition 8 being blocked by pin 21 and rubber slider 33. As the hand moves plug 2 downward, the side wall of pin 21 slides against the side wall of rubber slider 33, causing the top... The sealing component 3 blocks the inside of the through hole 81. When a short circuit or leakage occurs, the lifting block 61 moves upward and lifts the plug 21 upward. Since only the bottom chamfer of the rubber slider 33 is inserted into the through hole 81, the friction between the inner wall of the rubber and the side wall of the through hole 81 is small. Therefore, when the lifting block 61 moves upward, the friction between the plug 21 and the rubber slider 33 drives the rubber slider 33 to move closer to the plug hole 101. Since the distance between the through hole 81 and the plug hole 101 is smaller than the movement path of the lifting block 61, when the leakage protection is triggered, the lifting block 61 moves upward. Even if the sealing component 3 is at the bottom of the guide rod 31 at this time, it can block the plug hole 101 after the lifting block 61 moves. This achieves secondary sealing of the plug hole 101 after the leakage protection is triggered, reducing the possibility of rainwater entering the bottom of the inner side of the support shell 1 when the plug 2 is in a half-inserted state.

[0079] The lifting block 61 is made of rigid plastic. Because the plastic is non-conductive, when the lifting block 61 is inserted between the two conductive copper plates 4, it provides insulation, thus achieving leakage protection. (Please refer to...) Figure 7 The upper surface of the lifting block 61 is provided with multiple grid grooves 611. When there are water droplets on the surface of the lifting block 61, the water droplets can flow back to the bottom of the groove along the grid grooves 611, making it difficult for the water droplets on the upper surface of the lifting block 61 to form a complete conductive medium between the conductive copper plate 4 and the pin 21, which is beneficial to blocking the conductive path of the continuous water film formation.

[0080] Each of the conductive copper plates 4 on both sides of a single pin 21 is provided with a matching plug 421 and a slot 422. When the pin 21 is inserted, the plug 421 on the conductive copper plate 4 corresponding to the pin 21 is inserted into the corresponding slot 422, thereby increasing the contact area between the two conductive copper plates 4 and improving the stability of the conductivity between the two conductive copper plates 4.

[0081] The following description, in conjunction with the accompanying drawings and embodiments, provides a further explanation of a power socket with temperature-sensing leakage protection function provided by the present invention.

[0082] A socket 101 is provided at the upper end of the support shell 1, and a partition 8 with a through hole 81 is fixed inside the partition 8. A sealing assembly 3 containing a guide rod 31, a sealing frame 32, and a chamfered rubber slider 33 is installed below the socket 101. When the pin 21 at the bottom of the plug 2 is inserted into the socket 101 (including the half-insertion state), the bottom of the pin 21 pushes the conductive copper plate 4 to move to both sides, and the return spring 53 of the clamping assembly 5 is compressed, causing the conductive copper plate 4 to clamp the pin 21 and conduct electricity.

[0083] At this time, the pin 21 presses down on the sealing component 3, and the rubber slider 33 deforms and blocks the through hole 81 on the partition 8 and the side wall of the pin 21, thereby forming a seal on the surface of the partition 8. At this time, it is difficult for external water to flow into the support shell 1.

[0084] However, if the plug 2 is not fully inserted or the bottom surface of the rubber slider 33 is worn, external water can pass through the through hole 81 and enter the support shell 1. At this time, there is still a risk of rainwater seepage into the gap at the end face of the plug hole 101.

[0085] When rainwater seeps in and causes a short circuit or leakage, the electromagnet 71 of the drive structure 7 loses its magnetism, and the armature 72 moves downward under the force of gravity and the elastic force of the support spring 73, squeezing the damping fluid in the flow channel 62; the damping fluid pushes the pistons 63 on both sides to slide synchronously, and drives the lifting block 61 to move vertically upward. During the upward movement of the lifting block 61: its chamfered slope first pushes the bottom of the conductive copper plate 4, forcibly overcoming the clamping force of the reset spring 53 and causing the conductive copper plate 4 to separate to both sides, simultaneously realizing the leakage protection power-off and clamp release; at the same time, the upper end face of the lifting block 61 contacts and lifts the plug 21, causing the plug 21 to move upward and significantly expand the vertical water storage space between the bottom of the plug 21 and the bottom surface of the inner shell; the rise of the plug 21 drives the sealing component 3 to reset, forcing the rubber slider 33 to block the socket 101 and stop the continuous water leakage; the lifting block 61 finally stops in the state where the lifting block 61 is fully protruding, and after the upward movement force of the lifting block 61 disappears, it is clamped and fixed by the clamping component 5, thereby separating the conductive copper plate 4 from the plug 21. Thus, through a single lifting action, the following are achieved simultaneously: clamping is released to facilitate quick insertion and removal of plug 2, the plug pin 21 is raised to expand the water storage volume inside the support shell 1 to reduce the risk of water accumulation and conduction, and the sealing component 3 is reset to block the socket 101 to achieve waterproofing, effectively mitigating the safety hazards of ship deck sockets under water seepage conditions.

[0086] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0087] The foregoing has shown and described the basic principles, main features, and advantages of this disclosure. Those skilled in the art should understand that this disclosure is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this disclosure. Various changes and modifications can be made to this disclosure without departing from its spirit and scope, and all such changes and modifications fall within the scope of this disclosure as claimed.

Claims

1. A power socket with temperature sensing leakage protection function, characterized in that, include: The support shell (1) has at least one insertion hole (101) at its upper end; The plug (2) has at least one pin (21) symmetrically arranged at the bottom of the plug (2), the pin (21) is adapted to be inserted into the socket (101), the inner side of the support shell (1) is provided with a partition (8) parallel to the upper end face of the support shell (1), and the partition (8) is provided with a through hole (81) corresponding to the socket (101); A sealing component (3) is slidably provided at the lower end of the socket (101); Separable conductive copper plates (4) are provided on both sides of the pin (21); Furthermore, a clamping assembly (5) is fixed on the side of the conductive copper plate (4) away from the pin (21). The clamping assembly (5) is used to drive the conductive copper plate (4) to move closer to the corresponding pin (21) and to clamp and fix the conductive copper plate (4) and the pin (21) after the pin (21) is inserted into the socket (101). A lifting assembly (6) is provided directly below the pin (21), and one end of the lifting assembly (6) is connected to the drive structure (7); The lifting assembly (6) includes a lifting block (61), a flow channel (62), and a piston (63). The lifting block (61) is located directly below the pin (21). The edge of the lifting block (61) is chamfered, and the width of the lifting block (61) is greater than the width of the pin (21). The lower end of the lifting block (61) is hermetically sealed with the flow channel (62), which has multiple ports. The piston (63) is slidably disposed inside the flow channel (62). The two side ports of the flow channel (62) are movably connected to the lifting blocks (61) below the two pins (21), and the upper port of the flow channel (62) is connected to the driving structure (7). When a short circuit or leakage occurs and triggers the drive structure (7), the drive structure (7) drives the piston (63) to slide along the flow channel (62), and the damping fluid in the flow channel (62) pushes the lifting block (61) to move upward; When the lifting block (61) moves upward: The chamfered bevel and sidewall of the lifting block (61) push the conductive copper plates (4) on both sides to overcome the clamping force of the clamping assembly (5) and separate them to both sides, so that the conductive copper plates (4) are no longer in electrical contact with the pin (21); At the same time, the upper surface of the lifting block (61) contacts the bottom surface of the pin (21) and pushes the pin (21) to move upward. The upward movement of the pin (21) causes the sealing assembly (3) to reset upward and block the socket (101).

2. A power socket with leakage protection function and temperature sensing according to claim 1, characterized in that, The clamping assembly (5) includes a base plate (51), a support plate (52) and a return spring (53). The base plate (51) is located at the lower end of the conductive copper plate (4), and the two ends of the base plate (51) are respectively provided with support plates (52), and the return spring (53) is fixed between the support plate (52) and the conductive copper plate (4).

3. A power socket with temperature sensing leakage protection function according to claim 2, characterized in that, The conductive copper plate (4) includes a non-conductive skeleton (41) and a copper sheet (42), with the copper sheet (42) wrapped around the outside of the skeleton (41) to form the conductive copper plate (4).

4. A power socket with temperature sensing leakage protection function according to claim 3, characterized in that, The upper surface of the base plate (51) is provided with a sliding groove (511), and the lower end of the frame (41) is fixed with a protrusion (411) that matches the sliding groove (511).

5. A power socket with temperature sensing leakage protection function according to claim 1, characterized in that, The driving structure (7) includes an electromagnet (71) and an armature (72). The upper port of the flow channel (62) is movably connected to the armature (72), and the armature (72) is slidably installed on the inner side of the electromagnet (71).

6. A power socket with temperature sensing leakage protection function according to claim 5, characterized in that, A support spring (73) is fixed on the side of the armature (72) near the electromagnet (71). A housing (721) is slidably provided on the outer side of the armature (72), and a shape memory metal (722) is provided between the housing (721) and the armature (72).

7. A power socket with temperature sensing leakage protection function according to claim 1, characterized in that, The sealing assembly (3) includes a guide rod (31), a sealing frame (32) and a rubber slider (33), and the guide rod (31) is fixed between the support shell (1) and the partition plate (8). Multiple sealing frames (32) are slidably arranged on the outer side of the guide rod (31), and rubber sliders (33) are slidably arranged on the side walls of the multiple sealing frames (32).

8. A power socket with temperature sensing leakage protection function according to claim 7, characterized in that, The upper and lower end faces of the rubber slider (33) are chamfered, and the chamfering direction is set on the side closer to the side wall of the sealing frame (32). The width of the pin (21) and the rubber slider (33) is greater than the width of the through hole (81), and the distance between the through hole (81) and the insertion hole (101) is less than the moving path of the lifting block (61).

9. A power socket with temperature sensing leakage protection function according to claim 1, characterized in that, The lifting block (61) is made of hard plastic, and the upper surface of the lifting block (61) is provided with multiple grid slots (611).

10. A power socket with temperature sensing leakage protection function according to claim 8, characterized in that, Each of the individual pins (21) has a conductive copper plate (4) on both sides with a matching plug (421) and a slot (422).

Citation Information

Patent Citations

  • Marine safety socket

    CN112821128A

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    CN216818808U