A false touch prevention energy storage connector based on tool unlocking

Abstract

The application provides a false touch prevention energy storage connector based on tool unlocking, comprising a wire end body, a device end body embedded and installed at the upper end of the wire end body, and a nut threadedly connected to one end of the wire end body. The false touch prevention energy storage connector based on tool unlocking is provided with locking block one, locking block two, a device end sleeve, a connecting pin, a plug head and a nut, etc. Locking block one and related components of the device end are reliably locked to avoid accidental loosening. Locking block two assembly limits the nut to prevent it from loosening by itself. The double locking structure is combined with the tool unlocking design to fundamentally eliminate the risk of misoperation, improve the safety in use, the device end sleeve is accurately connected with the connecting pin to ensure the stability of electrical connection, the plug head automatically closes the internal passage when separated to block the invasion of foreign matters, does not affect normal conduction when connected, prolongs the service life of the components, and the nut is tightened to compress the sealing element during the screwing process, thereby strengthening the sealing performance and firmness of the cable connection.

Description

Technical Field

[0001] This invention relates to the field of connector technology, and more specifically, to a tool-based unlocking anti-accidental contact energy storage connector. Background Technology

[0002] Energy storage connectors are typically used for high-current connections and can be applied in various connector fields, such as new energy, military, rail transportation, aerospace, and aviation. During application, to prevent the connector from loosening or falling off, a locking structure must be incorporated into the connector to avoid safety hazards caused by loosening or detachment. However, the existing connectors have the following problems when unlocking: Most existing connectors are manually unlocked, requiring direct operation such as pressing the latch, rotating the nut, and moving the locking lever. During unlocking, the operator's hands must be close to the energized mating area, and the exposed live terminals are easily touched, posing a significant risk of electric shock. Furthermore, accidental unlocking while energized can cause arcing, short circuits, or even fires. While some improvements exist, such as posting warning labels and requiring two-handed operation, these measures rely solely on personnel training and operator self-discipline. They are management warnings, not inherently safe engineering designs, and cannot fundamentally eliminate the safety risks associated with unlocking operations.

[0003] This invention uses a tool-unlocking design to prevent accidental operation from the source, effectively preventing the risk of electric shock; combined with a multi-locking and sealing structure, it ensures the stability and sealing of the energy storage connection, while the protective design reduces the intrusion of foreign objects, ensuring the stability of the electrical connection, and comprehensively improving the safety and reliability of the energy storage connection. Summary of the Invention

[0004] The present invention aims to solve the technical problems mentioned in the background art and provide a tool-based unlocking anti-accidental contact energy storage connector.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a tool-based unlocking anti-accidental contact energy storage connector, comprising: a wire end body, a device end body embedded in the upper end of the wire end body, a nut threadedly connected to one end of the wire end body, a locking block one fixedly installed at one end of the wire end body, a connecting cylinder fixedly installed at the other end of the wire end body, a thread on the right side of the surface of the connecting cylinder and threadedly connected to the nut, a device end sleeve fixedly installed in the middle of the device end body, the device end sleeve being embedded in the upper end of the wire end body and nested on the surface of the cylinder at the upper end of the wire end body, and a locking block two fixedly installed on one side of the upper end of the wire end body.

[0006] A further preferred embodiment: the locking block has an inner cavity, a button is slidably connected inside the inner cavity, a spring is fixedly installed on the outer end of the button, and the other end of the button abuts against the sleeve at the end of the device.

[0007] A further preferred embodiment: a side cover is also snapped into the inner cavity, and the front and rear ends of the side cover are fixedly installed with buckles. The front and rear ends of the inner cavity are provided with snap holes. The buckles are snapped into the snap holes, and the other end of the spring abuts against the inner side of the side cover.

[0008] A further preferred embodiment: a spring is engaged inside the locking block 2, a spring cover is pressed onto the upper end of the spring, a spring 2 is fixedly installed at the bottom of the spring cover, and a through hole is opened in the middle of the upper end of the spring, and the spring 2 is connected to the bottom of the inside of the locking block 2 through the through hole.

[0009] A further preferred embodiment: a locking block is fixedly installed on one side of the spring cap, and a through hole is opened at the bottom of the second locking block, through which the locking block passes and abuts against the surface of the nut.

[0010] A further preferred embodiment: a sealing element is fitted on the right side of the threaded surface of the connecting cylinder, and a fastening ring is fixedly connected to the left end of the connecting cylinder; the connecting cylinder, the sealing element, and the fastening ring are all located inside the nut.

[0011] A further preferred embodiment: a second sealing element is fixedly installed inside the upper end of the main body of the line end, a main body sleeve is nested on the upper end of the main body of the line end, the second sealing element is located at the bottom of the main body sleeve, and the equipment end sleeve is nested on the surface of the main body sleeve.

[0012] A further preferred embodiment: a connecting pin is embedded in the sleeve of the device end, and a plug is provided at the bottom of the connecting pin. The plug is fixedly installed at the bottom inside the main sleeve, and the bottom of the connecting pin is inserted into the bottom inside the main sleeve.

[0013] A further preferred embodiment: a flat washer is fitted on the surface of the equipment end sleeve, and the flat washer is located at the connection between the equipment end sleeve and the equipment end body. Beneficial effects

[0014] 1. By incorporating a locking block, a button, a spring, and a side cover, the device sleeve, during insertion into the cable body, utilizes the contact action between the button and the outer wall of the device sleeve, combined with the elastic compression and reset of the spring, to continuously exert a squeezing force on the device sleeve. This ensures the device sleeve is securely locked inside the cable body, effectively improving the structural stability after the device and cable bodies are connected and preventing accidental loosening of the device body. Furthermore, this structure eliminates the need for additional complex locking operations; the locking mechanism is triggered solely by the insertion of the device sleeve, simplifying the connection process. The side cover, through a snap-fit ​​and snap-hole engagement, seals the inner cavity of the locking block, protecting the internal button and spring from dust and impurities, extending component lifespan, and facilitating subsequent disassembly and maintenance. Overall, this enhances the reliability and practicality of the connector. 2. By incorporating a second locking block, a spring cap, and a second spring, when the nut is tightened, the spring cap drives the locking block downwards, causing it to abut against the nut surface to form a reliable mechanical limit. This effectively prevents the nut from accidentally loosening under vibration or external force, ensuring the firmness and sealing of the cable connection. The structure employs a tool-unlocking design; only by using a special tool to push the locking block upwards can the nut's limit be released, avoiding connection failures caused by misoperation and significantly improving safety. The elastic reset function of the second spring automatically pushes the locking block back to its initial position after unlocking, preparing for the next nut tightening without additional manual intervention. This simplifies the operation process and ensures the continuity and stability of the locking function. 3. By incorporating a plug, the connector effectively seals the interior of the main sleeve when the connector is disconnected, preventing dust, impurities, and other foreign objects from entering and adhering to electrical contact parts or the surface of the connector pins. This ensures the cleanliness and reliability of subsequent electrical connections and prevents poor contact from affecting current transmission. When the device end and the wire end are connected, the connector pins can naturally push open the plug, without hindering the establishment of a normal electrical connection. After separation, the plug automatically resets and re-closes, providing continuous protection without additional operation. This simplifies the usage process, reduces the corrosive effects of the external environment on the connector's internal components, extends the connector's lifespan, and improves overall protection performance and operational stability. 4. In summary, this tool-unlocking-based anti-accidental contact energy storage connector, through its structure including locking block one, locking block two, device-end sleeve, connecting pin, plug, and nut, achieves multiple protections and a stable connection. Locking block one reliably locks with the relevant components on the device end, preventing accidental loosening; locking block two limits the nut's position, preventing it from loosening on its own. This dual-locking structure combined with the tool-unlocking design fundamentally eliminates the risk of misoperation and improves safety. The device-end sleeve and connecting pin precisely align, ensuring a stable electrical connection; the plug automatically seals its internal channel upon separation, preventing foreign object intrusion, and does not affect normal conduction during connection, extending component lifespan; the nut tightens the seal during tightening, enhancing the sealing and robustness of the cable connection. The overall structure balances connection reliability, ease of operation, and comprehensive protection, adapting to the stringent requirements of energy storage scenarios. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 This is a schematic diagram of the main body of the line end and the main body of the device end of the present invention.

[0017] Figure 3 This is a schematic diagram of the overall exploded structure of the present invention.

[0018] Figure 4 This is a schematic diagram of the main structure of the device side of the present invention.

[0019] Figure 5 This is an exploded structural diagram of the main body of the device of the present invention.

[0020] Figure 6 This is a schematic diagram of the locking block two structure of the present invention.

[0021] Figure 1-6 In the middle section: 1. Main body of the line end; 101. Locking block one; 102. Button; 103. Spring one; 104. Side cover; 105. Buckle; 106. Snap hole; 107. Connecting cylinder; 108. Locking block two; 109. Spring pin; 110. Spring pin cover; 111. Spring two; 112. Seal one; 113. Fastening ring; 114. Seal two; 115. Main body sleeve; 2. Equipment end main body; 201. Equipment end sleeve; 202. Connecting pin; 203. Plug head; 204. Flat washer; 3. Nut. Detailed Implementation

[0022] The following will refer to the appendices in the embodiments of the present invention. Figures 1-6 The technical solutions in the embodiments of the present invention will be clearly and completely described. Example

[0023] Please see Figure 1-5In this embodiment of the invention, a tool-based unlocking anti-accidental contact energy storage connector includes: a wire end body 1, a device end body 2 embedded in the upper end of the wire end body 1, a nut 3 threadedly connected to one end of the wire end body 1, a locking block 101 fixedly installed at one end of the wire end body 1, a connecting cylinder 107 fixedly installed at the other end of the wire end body 1, the connecting cylinder 107 having a thread on its right side surface and being threadedly connected to the nut 3, a device end sleeve 201 fixedly installed in the middle of the device end body 2, the device end sleeve 201 being embedded in the upper end of the wire end body 1 and nested on the surface of the cylinder at the upper end of the wire end body 1, and a locking block 12 fixedly installed on one side of the upper end of the wire end body 1. 08. A sealing element 112 is fitted on the right side of the threaded surface of the connecting cylinder 107. A fastening ring 113 is fixedly connected to the left end of the connecting cylinder 107. The connecting cylinder 107, the sealing element 112, and the fastening ring 113 are all located inside the nut 3. A sealing element 214 is fixedly installed inside the upper end of the wire end body 1. A main body sleeve 115 is nested on the upper end of the wire end body 1. The sealing element 214 is located at the bottom of the main body sleeve 115. The equipment end sleeve 201 is nested on the surface of the main body sleeve 115. A connecting pin 202 is embedded in the equipment end sleeve 201. A plug head 203 is provided at the bottom of the connecting pin 202. The plug head 203 is fixedly installed on the main body sleeve 115. Inside the bottom of the body sleeve 115, the bottom of the connecting pin 202 is inserted into the bottom of the body sleeve 115. A flat washer 204 is fitted onto the surface of the device end sleeve 201, and the flat washer 204 is located at the connection between the device end sleeve 201 and the device end body 2. First, the connector is in a separated state; the wire end body 1, the device end body 2, and the nut 3 are separated. The nut 3 is rotated and installed onto the connecting sleeve 107 of the wire end body 1. By tightening the threads, the fastening ring 113 and the sealing element 112 are pressed together, ensuring the sealing and firmness of the connection between the wire end body 1 and the cable. The device end sleeve 201 of the device end body 2 is aligned with the wire end body 1. The main sleeve 115 is inserted downwards, allowing the bottom of the connecting pin 202 to be inserted into the bottom of the main sleeve 115. As the device end body 2 engages with the line end body 1, the second seal 114 is squeezed by the main sleeve 115 and the device end sleeve 201, achieving a seal at the connection. Furthermore, as the device end body 2 is inserted, the second locking block 103 locks the device end body 2, and the first locking block 101 locks the nut 3, improving the sealing and stability of the connection. The bottom of the connecting pin 202 makes full contact with the electrical contact components inside the line end body 1, establishing a stable electrical connection. The plug head 203 is pushed open, ensuring normal current transmission. During separation, a special tool is used again to apply pressure to the first locking block 101 and the second locking block 108 to unlock the device end body 2 and the nut 3, separating it from the line end body 1. The device end body 2 is then pulled upwards, separating the connecting pin 202 from the electrical contact components of the line end body 1. The plug head 203 resets, preventing dust from entering. If the cable needs to be disassembled, the nut 3 can be rotated in the opposite direction to unscrew it from the connecting cylinder 107, thereby separating the cable from the cable end body 1.

[0024] In this embodiment of the invention, the locking block 101 has an inner cavity, and a button 102 is slidably connected inside the inner cavity. A spring 103 is fixedly installed on the outer end of the button 102, and the other end of the button 102 abuts against the device end sleeve 201. A side cover 104 is also snapped into the inner cavity, and buckles 105 are fixedly installed at both the front and rear ends of the side cover 104. The inner cavity has locking holes 106 at both the front and rear ends, and the buckles 105 engage with the locking holes 106. The other end of the spring 103 abuts against the inner side of the side cover 104. First, the button 102 is slidably installed in the inner cavity, and then the spring 103 is installed on the outer end of the button 102. Finally, the side cover 104 is inserted downwards. After insertion, the other end of the spring 103 will abut against the inner side of the side cover 104. When the device end sleeve 201 is inserted downwards, its outer wall will contact the button 102. As the sleeve continues to move downwards, the button 102 will retract outwards. The spring 103 stores the compressive force and continuously releases the elastic force of the reset, squeezing and abutting the device end sleeve 201, so that the device end sleeve 201 is stuck inside the line end body 1. When unlocking, a specific unlocking key is required to be inserted into the inner cavity from the bottom of the locking block 101 to unlock the button, avoiding direct contact between the worker and the connector.

[0025] In this embodiment of the invention, a spring post 109 is snapped into the locking block 2 108. A spring post cover 110 is pressed onto the upper end of the spring post 109. A spring 2 111 is fixedly installed at the bottom of the spring post cover 110. A through hole is opened in the middle of the upper end of the spring post 109. The spring 2 111 is connected to the bottom of the locking block 2 108 through the through hole. A locking block is fixedly installed on one side of the spring post cover 110. A through hole is opened at the bottom of the locking block 2 108. The locking block passes through the through hole and abuts against the surface of the nut 3. The cable is connected to the connecting cylinder 107. The nut 3 is rotated to the right to tighten, pushing the fastening ring 113 and the sealing element 112 to achieve a seal. After the nut 3 is tightened, due to the locking block on one side of the spring post cover 110, the locking block is secured to the surface of the locking block 110. As the spring cap 110 is pressed down, the block moves downwards, causing the locking block to move through the hole at the bottom of the locking block 108 to the surface of the nut 3, where it is stopped and abutted. When the nut 3 is rotated directly, the locking block on the nut 3 will be stopped when it rotates to the locking block 108, preventing it from rotating. When the nut 3 is unlocked, the locking block 108 is pushed upwards using the provided tool, and then the nut 3 is rotated out. After it is rotated out, the tool is moved, and the locking block 108 is reset downwards by the elasticity of the spring 111. When the nut 3 is tightened again, the unlocking of the nut 3 is stopped. Example

[0026] like Figure 6As shown, the difference between this embodiment and embodiment 1 is that the locking block 2 108 in this embodiment has an elastic block directly installed at the bottom, eliminating the need for spring pins, spring pin covers, spring 2 and various opening designs. It is more convenient to use and the structure is more streamlined. It can directly limit the nut 3. When unlocking, a specific tool is still needed to pry up the block to release the limit on the nut, while avoiding direct manual contact with the connector.

Claims

1. A tool-based unlocking anti-accidental contact energy storage connector, comprising: A wire end body (1) is provided with a device end body (2) embedded in the upper end of the wire end body (1). A nut (3) is threadedly connected to one end of the wire end body (1). The wire end body (1) is characterized in that: a locking block (101) is fixedly installed at one end of the wire end body (1), and a connecting cylinder (107) is fixedly installed at the other end of the wire end body (1). The connecting cylinder (107) has a thread on the right side of its surface and is threadedly connected to the nut (3). A device end sleeve (201) is fixedly installed in the middle of the device end body (2). The device end sleeve (201) is embedded in the upper end of the wire end body (1) and nested on the surface of the cylinder at the upper end of the wire end body (1). A locking block (108) is fixedly installed on one side of the upper end of the wire end body (1).

2. The tool-based unlocking anti-accidental contact energy storage connector according to claim 1, characterized in that: The locking block (101) has an inner cavity, and a button (102) is slidably connected inside the inner cavity. A spring (103) is fixedly installed on the outer end of the button (102), and the other end of the button (102) abuts against the equipment end sleeve (201).

3. The tool-based unlocking anti-accidental contact energy storage connector according to claim 2, characterized in that: The inner cavity is also fitted with a side cover (104), and the front and rear ends of the side cover (104) are fixedly installed with buckles (105). The front and rear ends of the inner cavity are provided with buckle holes (106). The buckles (105) are engaged with the buckle holes (106), and the other end of the spring (103) abuts against the inner side of the side cover (104).

4. The tool-based unlocking anti-accidental contact energy storage connector according to claim 1, characterized in that: A spring pin (109) is engaged inside the locking block two (108). A spring pin cover (110) is pressed onto the upper end of the spring pin (109). A spring pin two (111) is fixedly installed at the bottom of the spring pin cover (110). A through hole is opened in the middle of the upper end of the spring pin (109). The spring pin two (111) is connected to the bottom of the inside of the locking block two (108) through the through hole.

5. The tool-based unlocking anti-accidental contact energy storage connector according to claim 4, characterized in that: A locking block is fixedly installed on one side of the spring cap (110), and a through hole is opened at the bottom of the locking block two (108). The locking block passes through the through hole and abuts against the surface of the nut (3).

6. The tool-based unlocking anti-accidental contact energy storage connector according to claim 1, characterized in that: A sealing element (112) is fitted on the right side of the threaded surface of the connecting cylinder (107), and a fastening ring (113) is fixedly connected to the left end of the connecting cylinder (107). The connecting cylinder (107), the sealing element (112), and the fastening ring (113) are all located inside the nut (3).

7. The tool-based unlocking anti-accidental contact energy storage connector according to claim 1, characterized in that: The upper end of the main body (1) is fixedly installed with a sealing element two (114), and the upper end of the main body (1) is nested with a main body sleeve (115). The sealing element two (114) is located at the bottom of the main body sleeve (115), and the equipment end sleeve (201) is nested on the surface of the main body sleeve (115).

8. The tool-based unlocking anti-accidental contact energy storage connector according to claim 7, characterized in that: A connecting pin (202) is embedded in the device end sleeve (201). A plug (203) is provided at the bottom of the connecting pin (202). The plug (203) is fixedly installed at the bottom inside the main body sleeve (115). The bottom of the connecting pin (202) is inserted into the bottom inside the main body sleeve (115).

9. The tool-based unlocking anti-accidental contact energy storage connector according to claim 8, characterized in that: The surface of the equipment end sleeve (201) is fitted with a flat washer (204), and the flat washer (204) is located at the connection between the equipment end sleeve (201) and the equipment end body (2).

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