A power connector based on a lithium battery alarm device

Abstract

The invention discloses an electric power connector based on a lithium battery alarm device, relates to the field of lithium battery connectors, solves the problem that the existing connector is difficult to normally alarm when plugged in and out for a long time, comprises: a lithium battery body and a plurality of power plugs fixedly installed on the outside of the lithium battery body, a wire plug is arranged on the inside of the power plug, a mounting box is fixedly installed on the top of the power plug, and an audible and visual alarm is fixedly installed on the top of the mounting box; further comprises: an alarm mechanism, which is used for quickly alarming after the wire plug is loosened, and the alarm mechanism is installed on the inside of the mounting box; the invention can provide clamping and positioning for the outside of the wire plug when the wire plug is inserted into the power plug through the alarm mechanism, so as to prevent the wire plug from falling off from the power plug, and can timely issue an alarm prompt when the wire plug is loose, so as to facilitate the staff to immediately inspect and repair, thereby achieving the effect of firm docking and safe alarm.

Description

Technical Field

[0001] The invention relates to the field of lithium battery connectors, in particular to a power connector based on a lithium battery alarm device. Background Art

[0002] A lithium battery is a battery that uses lithium metal or lithium alloy as positive and negative electrode materials and stores and releases electrical energy through the migration of lithium ions between the positive and negative electrodes. During the charging process, lithium ions are released from the positive electrode material and migrate to the negative electrode material through the electrolyte and separator. During the discharge process, lithium ions return from the negative electrode material to the positive electrode while releasing electrical energy.

[0003] When lithium batteries are in use, connectors are usually set at the wiring ports to facilitate the connection between the wires and the lithium batteries. The existing Chinese public patent document: CN115864061A discloses a connection and separation automatic alarm connector, which connects the current or signal between wire I and wire II under the action of the conductive ball on the transmission ball and the conductive block in the limit sleeve, and when the first connecting column and the second connecting column fall off, the elastic force of the pressure spring makes the second conductive column and the first conductive column contact again to conduct and connect the buzzer, and then when the connector falls off, an audible and visual alarm can be issued to remind the detection and maintenance personnel. However, when the wires are connected, an arc-shaped groove needs to be opened on the outside of the wires to achieve contact between the transmission ball and the wires. The requirements for the wires are high, and the connection of lithium batteries often requires frequent plugging and unplugging of the wires. Since the outside of the wires are softer insulating rubber, the annular groove of the wires will be worn during the plugging and unplugging process, making it difficult to push the transmission ball normally, and there will be a situation where the wires are loose and no alarm will be given. Summary of the invention

[0004] The object of the present invention is to provide a power connector based on a lithium battery alarm device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A power connector based on a lithium battery alarm device comprises: a lithium battery body and a plurality of power sockets fixedly mounted on the outside of the lithium battery body, a wire plug is arranged on the inner side of the power socket, a mounting box is fixedly mounted on the top of the power socket, and a sound and light alarm is fixedly mounted on the top of the mounting box for alarm prompt; further comprising: an alarm mechanism for quickly giving an alarm when the wire plug is loose, the alarm mechanism being mounted on the inner side of the mounting box; an unlocking mechanism for quickly separating the wire plug from the power socket, the unlocking mechanism being mounted on the inner side of the mounting box; a protective mechanism for providing protection between the wire plug and the power socket, the protective mechanism being mounted on one end of the power socket away from the lithium battery body.

[0007] Preferably, the alarm mechanism includes two mounting plates symmetrically arranged on the inner side of the mounting box, a mounting rod is rotatably installed between the two mounting plates, a clamping roller is fixedly installed on the outer side of the mounting rod, the outer side of the clamping roller contacts the outer side of the wire plug, and when the wire plug is inserted into the inner side of the power plug, the clamping roller can be driven to rotate, a slide groove for limiting the sliding of the mounting rod is provided on the inner side of the mounting box, two ratchets symmetrically distributed at both ends of the clamping roller are fixedly installed on the outer side of the mounting rod, and limiting teeth cooperating with the ratchet are provided on the outer side of the mounting plate so that the ratchet rotates in one direction, a fixing plate is fixedly installed between the two mounting plates, and two symmetrically distributed springs are fixedly installed between the fixing plate and the inner side of the mounting box, a push plate is fixedly installed on the top of the fixing plate, and an elastic switch extending to the inner side of the mounting box is fixedly installed on the bottom of the sound and light alarm, the starting end of the bottom of the elastic switch is an arc structure, and the outer side of the push plate contacts the arc surface of the elastic switch, so that the push plate can open the sound and light alarm through the elastic switch when it moves.

[0008] The top of the U-shaped plate is fixedly installed with three pressing rods equidistantly distributed and slidingly passing through the installation box, and a pressing plate located at the top of the installation box is fixedly installed between the three pressing rods, and the pressing plate pushes the pressing rod to make the installation bar drive the limiting tooth away from the ratchet.

[0009] Preferably, the protective mechanism comprises a mounting ring arranged on the inner side of an end of the power connection plug away from the lithium battery body, the outer diameter of the mounting ring is larger than the outer diameter of the wire plug, an annular cavity is provided on the inner side of the power connection plug for limiting sliding of the mounting ring, so as to facilitate the installation of the mounting ring, a plurality of equally spaced sockets are fixedly installed on the outer side of the mounting ring, a cavity is provided on the inner side of the annular cavity for limiting sliding of the socket, a guide rod is fixedly installed on the inner side of the cavity, the socket is slidably installed on the outer side of the guide rod to provide support for the socket, a tension spring is provided on the outer side of the guide rod, the tension spring is fixedly installed between the socket and the inner side of the cavity to facilitate movement and resetting of the socket, a plurality of centrally symmetrically distributed protective strips are fixedly installed on the inner side of the mounting ring, the protective strips are in an inclined structure, the protective strips are made of rubber, the outer side of the protective strips contacts the outer side of the wire plug, so that the protective strips provide protection and sealing for the wire plug.

[0010] Preferably, both ends of the installation rod are fixedly mounted with limit rings, and the outer side of the limit ring is in contact with the inner side of the installation box, thereby improving the stability of the movement of the installation rod.

[0011] Preferably, the outer side of the clamping roller is an arc-shaped concave structure, and a plurality of anti-slip grooves distributed symmetrically with the center are provided on the outer side of the clamping roller, so that the wire plug can push the clamping roller to rotate.

[0012] Preferably, a sleeve is slidably mounted on the outer side of the slide bar, and the top of the sleeve is fixedly mounted on the bottom of the positioning plate to provide support for the movement of the slide bar.

[0013] Preferably, a plurality of anti-slip convex strips are provided on the top of the pressing plate and the outer side of the power socket, which are evenly distributed, so as to facilitate holding the power socket and pressing the pressing plate.

[0014] Preferably, a groove for accommodating the pressing plate is provided on the top of the installation box, so as to facilitate the installation of the pressing plate.

[0015] Preferably, the outer side of the protective strip is an arc-shaped structure, which facilitates the insertion of the wire plug into the interior of the power socket.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention can provide clamping and positioning for the outer side of the wire plug when the wire plug is inserted into the power socket through the alarm mechanism to prevent the wire plug from falling out of the power socket, and can issue an alarm prompt in time when the wire plug is loose, so as to facilitate immediate maintenance by staff, thereby achieving the effect of firm docking and safety alarm.

[0018] The present invention can unlock the ratchet on the mounting rod by pressing through the unlocking mechanism, so that the ratchet can rotate in the opposite direction, which is convenient for pulling out the wire plug. Under the premise of firm docking, the wire can be easily pulled out, thereby improving the convenience of docking the lithium battery body with the wire plug.

[0019] The present invention uses a protective mechanism to enable a plurality of protective strips on the mounting ring to abut against the outer side of the wire plug when the wire plug is inserted into the power socket. The protective strips are distributed obliquely to enable the protective strips to provide a waterproof and moisture-proof effect between the power socket and the wire plug, thereby achieving a safety protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the power plug barrel and the wire plug in the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the mounting ring and the clamping roller in the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the fixed plate and the push plate in the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the mounting rod and the limiting ring in the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the T-shaped block and the sliding box in the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the mounting strip and the positioning plate in the present invention;

[0027] Figure 8 for Figure 3 Schematic diagram of the enlarged structure of area A in the middle.

[0028] In the figure: 1. lithium battery body; 2. power socket; 3. wire plug; 4. installation box; 5. sound and light alarm; 6. installation plate; 7. installation rod; 8. clamping roller; 9. ratchet; 10. limit tooth; 11. fixing plate; 12. spring 1; 13. push plate; 14. elastic switch; 15. positioning plate; 16. slide bar; 17. installation strip; 18. slide box; 19. spring 2; 20. T-block; 21. U-plate; 22. pressure rod; 23. pressure plate; 24. installation ring; 25. sleeve; 26. guide rod; 27. tension spring; 28. protection strip; 29. ​​limit ring; 30. sleeve. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figure 1-Figure 8 , a power connector based on a lithium battery alarm device shown in the figure includes a lithium battery body 1 and a plurality of power sockets 2 fixedly installed on the outside of the lithium battery body 1, a wire plug 3 is arranged on the inner side of the power socket 2, a mounting box 4 is fixedly installed on the top of the power socket 2, and a sound and light alarm 5 is fixedly installed on the top of the mounting box 4 for alarm prompts; it also includes: an alarm mechanism for quickly alarming after the wire plug 3 is loose, and the alarm mechanism is installed on the inner side of the mounting box 4; an unlocking mechanism for quickly separating the wire plug 3 from the power socket 2, and the unlocking mechanism is installed on the inner side of the mounting box 4; a protective mechanism for providing protection between the wire plug 3 and the power socket 2, and the protective mechanism is installed at one end of the power socket 2 away from the lithium battery body 1.

[0031] The alarm mechanism includes two mounting plates 6 symmetrically arranged on the inner side of the mounting box 4, a mounting rod 7 is rotatably installed between the two mounting plates 6, a clamping roller 8 is fixedly installed on the outer side of the mounting rod 7, the outer side of the clamping roller 8 is in contact with the outer side of the wire plug 3, the outer side of the clamping roller 8 is an arc-shaped concave structure, and a plurality of anti-skid grooves symmetrically distributed in the center are provided on the outer side of the clamping roller 8, which is convenient for the wire plug 3 to push the clamping roller 8 to rotate. When the wire plug 3 is inserted into the inner side of the power plug 2, the clamping roller 8 can be driven to rotate. A sliding groove for limiting the sliding of the mounting rod 7 is provided on the inner side of the mounting box 4, and two symmetrically distributed anti-skid grooves at both ends of the clamping roller 8 are fixedly installed on the outer side of the mounting rod 7. The ratchet 9 and the outer side of the mounting plate 6 are provided with a limit tooth 10 matched with the ratchet 9, so that the ratchet 9 can rotate in one direction. A fixing plate 11 is fixedly installed between the two mounting plates 6. Two symmetrically distributed springs 12 are fixedly installed between the fixing plate 11 and the inner side of the mounting box 4. A push plate 13 is fixedly installed on the top of the fixing plate 11. An elastic switch 14 extending to the inner side of the mounting box 4 is fixedly installed at the bottom of the sound and light alarm 5. The starting end of the bottom of the elastic switch 14 is an arc structure. The outer side of the push plate 13 contacts the arc surface of the elastic switch 14, so that when the push plate 13 moves, the sound and light alarm 5 can be turned on through the elastic switch 14;

[0032] When the staff inserts the wire plug 3 into the inner side of the power socket 2, the outer side of the wire plug 3 moves along the outer side of the clamping roller 8, so that the wire plug 3 drives the two clamping rollers 8 to rotate, and the clamping roller 8 drives the ratchet 9 to rotate synchronously through the mounting rod 7. When the wire plug 3 and the power socket 2 are connected, the ratchet 9 is locked by the limit clamping teeth 10, so that the ratchet 9 cannot rotate, and the clamping roller 8 provides resistance for the outer side of the wire plug 3, and the wire plug 3 can be fixed on the inner side of the power socket 2. When the wire plug 3 is subjected to a large force, the position of the wire plug 3 on the inner side of the power socket 2 is offset, the wire plug 3 pushes the mounting rod 7 to move along the slide groove on the mounting box 4 through the clamping roller 8, and the mounting rod 7 drives the fixing plate 11 to move through the mounting plate 6, so that the push plate 13 on the fixing plate 11 contacts the arc surface of the elastic switch 14, and the sound and light alarm 5 is turned on, so that the staff can be notified in time to carry out maintenance, thereby achieving the effect of firm connection and safety alarm.

[0033] The unlocking mechanism includes a positioning plate 15 fixedly mounted on the side of the mounting plate 6 away from the clamping roller 8, three sliding rods 16 equidistantly distributed are slidably mounted on the inner side of the positioning plate 15, a mounting strip 17 is fixedly mounted between the bottom ends of the three sliding rods 16, the side of the limit locking tooth 10 away from the ratchet 9 is fixedly mounted on the top of the mounting strip 17, a sliding box 18 is fixedly mounted between the top ends of the three sliding rods 16, a spring 2 19 is arranged on the outer side of the sliding rod 16, and the spring 2 19 is fixedly mounted between the sliding box 18 and the positioning plate 15, so as to facilitate the sliding box 18 to reset and realize the limit locking. The elastic movement of the tooth 10, a T-shaped block 20 is slidably installed on the inner side of the slide box 18, the length of the slide box 18 is greater than the length of the T-shaped block 20, so that the slide box 18 can move along the outer side of the T-shaped block 20, a U-shaped plate 21 is fixedly installed between the two T-shaped blocks 20, three pressure rods 22 that are evenly distributed and slide through the installation box 4 are fixedly installed on the top of the U-shaped plate 21, and a pressure plate 23 located at the top of the installation box 4 is fixedly installed between the three pressure rods 22, and the pressure rod 22 is pushed by the pressure plate 23, so that the installation bar 17 drives the limit tooth 10 away from the ratchet 9;

[0034] When the staff takes out the wire plug 3, they can press the pressure plate 23 to move downward, so that the pressure plate 23 drives the U-shaped plate 21 to move downward through the pressure rod 22, and the T-shaped blocks 20 at both ends of the U-shaped plate 21 push the corresponding slide box 18 to move downward synchronously, and the slide box 18 compresses the spring 2 19 and pushes the three slide bars 16 to move downward. The slide bar 16 drives the limit tooth 10 away from the ratchet 9 through the mounting bar 17, unlocks the ratchet 9, and the ratchet 9 can rotate in the opposite direction, which is convenient for the staff to pull out the wire plug 3 from the power socket 2, thereby improving the convenience of docking the lithium battery body 1 with the wire plug 3, and when the mounting plate 6 moves, it can drive the slide box 18 to move along the outer side of the T-shaped block 20 to ensure the normal movement of the mounting plate 6.

[0035] Working principle: First, the staff inserts the wire plug 3 into the inner side of the power socket 2 so that the outer sides of the two clamping rollers 8 of the wire plug 3 are in contact with each other. As the wire plug 3 moves, the wire plug 3 drives the two clamping rollers 8 to rotate, and the clamping rollers 8 drive the ratchet 9 on the installation rod 7 to rotate synchronously. When the wire plug 3 is docked with the power socket 2, the elasticity of the spring 19 is used to drive the installation strip 17 to drive the limit gear 10 to lock the ratchet 9, and the ratchet 9 cannot rotate, so that the clamping rollers 8 provide resistance for the outer side of the wire plug 3, and fix the wire plug 3 on the inner side of the power socket 2. When the cable of the wire plug 3 is subjected to a large pull, the wire plug 3 moves outward along the inner side of the power socket 2, and the wire plug 3 pushes the clamping rollers 8 to move synchronously, so that the clamping rollers 8 push the installation rod 7 to move along the slide groove on the installation box 4, and the installation rod 7 drives the installation plate 6 to move synchronously, so that the installation plate 6 drives the fixing plate 1 The push plate 13 on 1 contacts the arc surface of the elastic switch 14, and the starting end of the elastic switch 14 is pushed to turn on the sound and light alarm 5, so that the staff can be notified in time to carry out maintenance. When it is necessary to pull out the wire plug 3 from the power socket 2, the staff presses the pressure plate 23 to move downward, so that the pressure plate 23 contacts the groove on the installation box 4, and the pressure plate 23 drives the U-shaped plate 21 to move downward through the pressure rod 22, so that the T-shaped blocks 20 at both ends of the U-shaped plate 21 push the corresponding slide box 18 to move downward synchronously, and the slide box 18 pushes the three slide bars 16 to move downward, so that the slide bar 16 drives the limit tooth 10 away from the ratchet 9 through the installation strip 17. Finally, the staff pulls the wire plug 3 to move, so that the wire plug 3 drives the clamping roller 8 to rotate in the opposite direction, and the wire plug 3 can be pulled out from the power socket 2, thereby achieving the effect of firm docking and safety alarm, and improving the convenience of plugging and unplugging the wire plug 3.

[0036] Example 2: Please refer to Figure 2 , Figure 3 and Figure 8This embodiment further explains the first embodiment. The protection mechanism shown in the figure includes a mounting ring 24 arranged on the inner side of the end of the power plug 2 away from the lithium battery body 1. The outer diameter of the mounting ring 24 is larger than the outer diameter of the wire plug 3. The inner side of the power plug 2 is provided with an annular cavity for limiting the sliding of the mounting ring 24, which is convenient for the installation of the mounting ring 24. A plurality of equally spaced sleeves 25 are fixedly installed on the outer side of the mounting ring 24. A cavity for limiting the sliding of the sleeve 25 is provided on the inner side of the annular cavity. A guide rod 26 is fixedly installed on the inner side of the cavity. The sleeve 25 is slidably installed on the guide rod 26. The outer side of the guide rod 26 provides support for the sleeve 25. A tension spring 27 is arranged on the outer side of the guide rod 26. The tension spring 27 is fixedly installed between the sleeve 25 and the inner side of the cavity to facilitate the movement and reset of the sleeve 25. A plurality of protective strips 28 symmetrically distributed in the center are fixedly installed on the inner side of the mounting ring 24. The protective strips 28 are inclined and made of rubber. The outer side of the protective strips 28 contacts the outer side of the wire plug 3, so that the protective strips 28 provide protection and sealing for the wire plug 3. The outer side of the protective strips 28 is an arc-shaped structure to facilitate the insertion of the wire plug 3 into the interior of the power plug barrel 2.

[0037] In this embodiment, when the staff inserts the wire plug 3 into the inner side of the power socket 2, the wire plug 3 can contact the protective strip 28 on the mounting ring 24. The protective strip 28 with an inclined structure can provide a waterproof and moisture-proof effect between the power socket 2 and the wire plug 3. When the wire plug 3 is detached, the elastic force of the tension spring 27 can be used to make the protective strip 28 provide resistance for the wire plug 3, thereby further preventing the wire plug 3 from falling off, thereby achieving a safety protection effect.

[0038] Example 3: Please refer to Figure 2-Figure 7 , this embodiment further illustrates other embodiments. Limiting rings 29 are fixedly installed at both ends of the mounting rod 7 in the figure. The outer side of the limiting ring 29 contacts the inner side of the mounting box 4 to improve the stability of the movement of the mounting rod 7. A sleeve 30 is slidably installed on the outer side of the slide bar 16. The top of the sleeve 30 is fixedly installed on the bottom of the positioning plate 15 to provide support for the movement of the slide bar 16. A plurality of equally spaced anti-slip convex strips are provided on the top of the pressing plate 23 and the outer side of the power plug 2 to facilitate holding the power plug 2 and pressing the pressing plate 23. A groove for accommodating the pressing plate 23 is provided on the top of the mounting box 4 to facilitate the installation of the pressing plate 23.

[0039] In this embodiment: when the mounting rod 7 moves, it can drive the limiting ring 29 to move along the inner side of the mounting box 4, which can improve the stability of the movement of the mounting rod 7 and prevent the mounting rod 7 from being skewed. When the sliding rod 16 moves, it can move along the inner side of the sleeve 30, so that the sleeve 30 provides auxiliary support for the sliding rod 16. The bottom of the sleeve 30 can provide a limit for the movement of the mounting bar 17 to ensure that the limiting tooth 10 is against the ratchet 9. When the staff pulls out the wire plug 3, the anti-slip convex strips on the outer side of the power plug 2 and the pressure plate 23 make it convenient for the staff to press the pressure plate 23 and hold the power plug 2, thereby improving the convenience of pulling out the wire plug 3.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power connector based on a lithium battery alarm device, characterized in that: include: A lithium battery body (1) and a plurality of power plugs (2) fixedly mounted on the outside of the lithium battery body (1), a wire plug (3) being arranged on the inside of the power plug (2), a mounting box (4) being fixedly mounted on the top of the power plug (2), and an audible and visual alarm (5) being fixedly mounted on the top of the mounting box (4); Also includes: An alarm mechanism is used to quickly give an alarm when the wire plug (3) is loose, the alarm mechanism is installed on the inner side of the installation box (4), the alarm mechanism comprises two installation plates (6) symmetrically arranged on the inner side of the installation box (4), a mounting rod (7) is rotatably installed between the two installation plates (6), a clamping roller (8) is fixedly installed on the outer side of the installation rod (7), the outer side of the clamping roller (8) is in contact with the outer side of the wire plug (3), a slide groove for limiting the sliding of the installation rod (7) is opened on the inner side of the installation box (4), and two ratchet wheels (9) symmetrically distributed at both ends of the clamping roller (8) are fixedly installed on the outer side of the installation rod (7). ), the outer side of the mounting plate (6) is provided with a limit tooth (10) matched with the ratchet (9), a fixing plate (11) is fixedly installed between the two mounting plates (6), two symmetrically distributed springs (12) are fixedly installed between the fixing plate (11) and the inner side of the mounting box (4), a push plate (13) is fixedly installed on the top of the fixing plate (11), and an elastic switch (14) extending to the inner side of the mounting box (4) is fixedly installed on the bottom of the sound and light alarm (5), the starting end of the bottom of the elastic switch (14) is an arc structure, and the outer side of the push plate (13) is in contact with the arc surface of the elastic switch (14); An unlocking mechanism, used for quickly separating the wire plug (3) from the power socket (2), the unlocking mechanism being installed on the inner side of the installation box (4); A protection mechanism is used to provide protection between the wire plug (3) and the power connection plug (2), and the protection mechanism is installed at an end of the power connection plug (2) away from the lithium battery body (1).

2. The power connector based on the lithium battery alarm device according to claim 1, characterized in that: The unlocking mechanism comprises a positioning plate (15) fixedly mounted on a side of the mounting plate (6) away from the clamping roller (8); three sliding rods (16) equidistantly distributed are slidably mounted on the inner side of the positioning plate (15); a mounting strip (17) is fixedly mounted between the bottom ends of the three sliding rods (16); a side of the limiting latch (10) away from the ratchet (9) is fixedly mounted on the top of the mounting strip (17); a sliding box (18) is fixedly mounted between the top ends of the three sliding rods (16); a spring (19) is arranged on the outer side of the sliding rod (16); The second spring (19) is fixedly installed between the slide box (18) and the positioning plate (15); a T-shaped block (20) is slidably installed on the inner side of the slide box (18); the length of the slide box (18) is greater than the length of the T-shaped block (20); a U-shaped plate (21) is fixedly installed between the two T-shaped blocks (20); three pressure rods (22) are fixedly installed on the top of the U-shaped plate (21) and are equidistantly distributed and slidably penetrate the installation box (4); and a pressure plate (23) located on the top of the installation box (4) is fixedly installed between the three pressure rods (22).

3. The power connector based on the lithium battery alarm device according to claim 2, characterized in that: The protective mechanism comprises a mounting ring (24) arranged on the inner side of an end of the power connection plug (2) away from the lithium battery body (1), the outer diameter of the mounting ring (24) being larger than the outer diameter of the wire plug (3), an annular cavity for limiting the sliding of the mounting ring (24) being provided on the inner side of the power connection plug (2), a plurality of equally spaced sleeves (25) being fixedly mounted on the outer side of the mounting ring (24), a cavity for limiting the sliding of the sleeve (25) being provided on the inner side of the annular cavity, and a guide The guide rod (26) is provided with a sleeve (25) which is slidably mounted on the outer side of the guide rod (26). A tension spring (27) is arranged on the outer side of the guide rod (26). The tension spring (27) is fixedly mounted between the sleeve (25) and the inner side of the cavity. A plurality of protective strips (28) which are centrally symmetrically distributed are fixedly mounted on the inner side of the mounting ring (24). The protective strips (28) are inclined and made of rubber. The outer side of the protective strips (28) contacts the outer side of the wire plug (3).

4. The power connector based on the lithium battery alarm device according to claim 1, characterized in that: Limiting rings (29) are fixedly mounted on both ends of the mounting rod (7), and the outer side of the limiting ring (29) contacts the inner side of the mounting box (4).

5. The power connector based on the lithium battery alarm device according to claim 1, characterized in that: The outer side of the clamping roller (8) is an arc-shaped concave structure, and the outer side of the clamping roller (8) is provided with a plurality of anti-slip grooves distributed in a centrally symmetrical manner.

6. The power connector based on the lithium battery alarm device according to claim 2, characterized in that: A sleeve (30) is slidably mounted on the outer side of the slide rod (16), and the top of the sleeve (30) is fixedly mounted on the bottom of the positioning plate (15).

7. The power connector based on the lithium battery alarm device according to claim 2, characterized in that: The top of the pressing plate (23) and the outer side of the power connection plug (2) are both provided with a plurality of anti-slip convex strips which are distributed at equal distances.

8. The power connector based on the lithium battery alarm device according to claim 2, characterized in that: The top of the installation box (4) is provided with a groove for accommodating the pressing plate (23).

9. The power connector based on the lithium battery alarm device according to claim 3, characterized in that: The outer side of the protection strip (28) is an arc-shaped structure.

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