A constant temperature connector suitable for flywheel energy storage

Abstract

The application discloses a constant-temperature connector suitable for flywheel energy storage, and relates to the technical field of electric connectors.The constant-temperature connector comprises a socket shell and a plug shell, the socket shell is internally provided with a conductive core, the plug shell is internally provided with a conductive plate, a socket is formed in the conductive core, a heat pipe is inserted into the socket, hooks capable of being connected with the plug shell are slidably arranged on the two sides of the socket shell, a U-shaped handle for controlling the height of the hooks is further arranged on the outside of the socket shell, a bolt for positioning the U-shaped handle is arranged on the U-shaped handle, and a reverse pushing block capable of pushing the bolt outward when the conductive core is overheated is arranged in the socket shell.The heat pipe can dissipate heat of the conductive core, the reverse pushing block can push the bolt out when the conductive core is overheated, and thus two-stage protection is realized.The wedge-shaped part and the hinged conductive plate are in double-sided clamping contact, and under the spring pressure, a large-area, low-resistance and tight electric connection is formed, thereby effectively resisting poor contact caused by vibration and ensuring the electric conduction effect.

Description

Technical Field

[0001] This invention relates to the field of electrical connector technology, specifically a thermostatic connector suitable for flywheel energy storage. Background Technology

[0002] Flywheel energy storage refers to an energy storage method that uses an electric motor to drive a flywheel to rotate at high speed, and then uses the flywheel to drive a generator to generate electricity when needed. In order to obtain higher conversion efficiency and reduce flywheel rotor friction loss and wind loss, both the flywheel rotor and the motor work in a sealed high vacuum housing. The motor needs to be connected to the external cable through electrode posts and a connector.

[0003] For example, the invention patent with announcement number CN114583496B discloses a high-voltage connector suitable for flywheel energy storage units, including a high-voltage plug and a high-voltage socket. The high-voltage plug includes a plug housing with a cable insertion port and a socket interface. The socket interface is provided with a terminal block. An external cable is inserted into the plug housing through the cable insertion port and connected to the terminal block. A bottom cover is provided on the cable insertion port. The high-voltage socket includes a socket housing with a ceramic ring inside. A conductive core is disposed through the ceramic ring. Insulating cylinders are provided on both sides of the socket housing, and an insulating sleeve is connected to the outside of the insulating cylinder located on the side of the flywheel energy storage motor lead wire.

[0004] To ensure the internal vacuum effect of the flywheel energy storage device, a sealing structure is usually set between the electrode post and the housing. However, when the connector and the electrode post have poor contact, the resistance will increase and heat will be generated. After long-term use, heat will accumulate. If the heat is not released in time or corresponding measures are not taken, the electrode post will overheat, causing thermal deformation of the electrode post or the sealing structure. In severe cases, it will destroy the internal vacuum condition of the flywheel energy storage device. Therefore, providing a connector that can keep the electrode post at a constant temperature is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a thermostatic connector suitable for flywheel energy storage, which avoids excessively high electrode post temperatures by employing measures such as heat dissipation and automatic power-off in case of overheating.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a thermostatic connector suitable for flywheel energy storage, comprising:

[0007] The socket housing and the plug housing are provided, with the open end of the socket housing located at the bottom and the plug housing inserted into the socket housing from bottom to top.

[0008] The conductive core is located inside the socket housing, and one end of it is electrically connected to the electrode post on the flywheel energy storage device.

[0009] A conductive plate is installed inside the plug housing. When the plug housing is inserted into the socket housing, the conductive plate contacts the conductive core and forms an electrical connection.

[0010] The heat pipe has a socket inside the conductive core. The evaporation section of the heat pipe is inserted into the socket, and the condensation section of the heat pipe is located outside the socket housing.

[0011] Hooks are slidably mounted on both sides of the socket housing, and protrusions matching the hooks are provided on both sides of the plug housing;

[0012] The U-shaped lever is hinged to the outside of the socket housing. The hook is connected to the U-shaped lever. The height of the hook can be adjusted by moving the U-shaped lever. A pin is slidably provided on the U-shaped lever. The socket housing is provided with a positioning hole that matches the pin. When the pin is inserted into the positioning hole, the U-shaped lever is positioned.

[0013] The push block is slidably set inside the socket housing inside the positioning hole. When the temperature of the conductive core is higher than the set value, the push block can push the pin to move outward. When the pin is moved out of the positioning hole, the U-shaped lever will lose its positioning effect.

[0014] Preferably, the bottom of the conductive core is provided with a wedge-shaped part, and two slides are slidably arranged inside the plug housing along the height direction. There are two conductive plates, which are respectively hinged to the top of the two slides. When the conductive plates contact the wedge-shaped part, they can automatically adjust according to the inclination angle of the inclined surface. A spring is provided inside the plug housing to push the slides to move upward.

[0015] Preferably, a cable connecting tube is fixedly installed at the bottom of the plug housing, and two conductive plates are electrically connected to the cable connecting tube through flexible braided copper busbars.

[0016] Preferably, a guide groove is provided on the inner wall of the plug housing, guide blocks matching the guide groove are fixedly provided on both sides of the slide, and a support block is fixedly provided on the side surface of the slide near the conductive plate.

[0017] Preferably, a heat-conducting rod extending towards the positioning hole is fixedly provided on the conductive core, and the push block slides on the end of the heat-conducting rod. A memory alloy spring is fitted on the outside of the heat-conducting rod. When the memory alloy spring is heated and elongated, it will push the push block to move towards the positioning hole.

[0018] Preferably, the socket housing has dovetail slide rails on both sides of the exterior, the hook slides on the dovetail slide rails, a pin is fixedly installed on the outside of the hook, and elongated holes are opened on both sides of the U-shaped lever, with the pin sliding in the elongated holes.

[0019] Preferably, the condenser section of the heat pipe is equipped with multiple heat dissipation fins, and the socket housing is equipped with a heat dissipation protective cover that can be fastened to the outside of the multiple heat dissipation fins.

[0020] Preferably, an installation cylinder is fixedly installed on the U-shaped lever, the pin slides inside the installation cylinder, a spring is installed inside the installation cylinder to push the pin outward, openings are opened on both sides of the installation cylinder, and levers are fixedly installed on both sides of the pin, the levers extend through the openings to the outside of the installation cylinder.

[0021] Preferably, a tube clamp is fixedly installed on the conductive core, and a set bolt is installed on the tube clamp.

[0022] Preferably, a limiting plate is fixedly provided inside the socket housing, and the top of the wedge-shaped part can abut against the bottom of the limiting plate.

[0023] This invention provides a thermostatic connector suitable for flywheel energy storage, which has the following advantages:

[0024] 1. By setting a heat pipe inside the conductive core, heat can be efficiently dissipated. Combined with external heat dissipation fins, the working temperature of the electrode post can be effectively reduced, avoiding thermal deformation of the electrode post and surrounding vacuum sealing structure due to heat accumulation, and ensuring the stability of the vacuum environment inside the flywheel.

[0025] 2. It also features a secondary protection function. When the heat dissipation fails and the conductive core rises, the U-shaped lever can be disengaged by pushing the top block, thus achieving automatic physical separation of the connector at the set temperature without the need for external power or signal control, providing ultimate overheat protection for the flywheel energy storage system.

[0026] 3. The double-sided clamping contact scheme of the wedge-shaped part and the self-adaptive hinged conductive plate is adopted to form a large-area, low-resistance tight electrical connection under spring pressure. It can also adaptively adjust the angle to effectively resist poor contact caused by vibration and ensure conductivity.

[0027] 4. The connector integrates multiple functions such as conductivity, locking, heat dissipation, and overheat protection, solving the flywheel energy storage device's need for high-performance and high-safety connectors. Attached Figure Description

[0028] Figure 1 This is a perspective view of the present invention;

[0029] Figure 2 This is a cross-sectional view of the present invention;

[0030] Figure 3 This is an exploded view of the present invention.

[0031] Figure 4 This is a partial exploded perspective view of the present invention;

[0032] Figure 5 This is a 3D view of the conductive core;

[0033] Figure 6 A 3D view of a U-shaped lever;

[0034] Figure 7 A 3D diagram of the hook;

[0035] Figure 8 This is a 3D view of the plug housing;

[0036] Figure 9 This is a 3D view of the carriage;

[0037] Figure 10 A 3D view of the socket housing;

[0038] Figure 11 This is a diagram showing the state when the plug is unplugged.

[0039] Figure 12 This is a diagram showing the internal structure when the plug is unplugged.

[0040] In the diagram: 1. Socket housing; 2. Plug housing; 3. Conductive core; 4. Electrode post; 5. Conductive plate; 6. Heat pipe; 7. Socket; 8. Hook; 9. Protrusion; 10. U-shaped lever; 11. Pin; 12. Positioning hole; 13. Reverse push block; 14. Wedge-shaped part; 15. Slide; 16. Spring 1; 17. Cable connecting pipe; 18. Flexible braided copper busbar; 19. Guide groove; 20. Guide block; 21. Heat-conducting rod; 22. Memory alloy spring; 23. Dovetail slide rail; 24. Pin shaft; 25. Oblong hole; 26. Heat dissipation fins; 27. Heat dissipation protective cover; 28. Mounting cylinder; 29. ​​Spring 2; 30. Opening; 31. Lever; 32. Pipe clamp; 33. Support block; 34. Limiting plate. Detailed Implementation

[0041] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0042] Please see Figures 1-12 This invention provides a technical solution: a thermostatic connector suitable for flywheel energy storage, comprising:

[0043] The socket housing 1 and the plug housing 2 are provided. The open end of the socket housing 1 is located at the bottom, and the plug housing 2 is inserted into the socket housing 1 from bottom to top.

[0044] The conductive core 3 is located inside the socket housing 1, and one end of it is electrically connected to the electrode post 4 on the flywheel energy storage device.

[0045] The conductive plate 5 is disposed inside the plug housing 2. When the plug housing 2 is inserted into the socket housing 1, the conductive plate 5 contacts the conductive core 3 and forms an electrical connection.

[0046] The heat pipe 6 has a socket 7 inside the conductive core 3. The evaporation section of the heat pipe 6 is inserted into the socket 7. A thermally conductive insulating layer is provided between the heat pipe 6 and the socket 7. The condensation section of the heat pipe 6 is located outside the socket housing 1. The heat pipe 6 can dissipate heat to the conductive core 3, preventing heat from being transferred to the electrode post 4 when the temperature of the conductive core 3 is too high.

[0047] Hooks 8 are slidably disposed on both sides of the socket housing 1. Protrusions 9 that match hooks 8 are provided on both sides of the plug housing 2. The connection between hooks 8 and plug housing 2 can be achieved by hooking hooks 8 onto protrusions 9.

[0048] The U-shaped lever 10 is hinged to the outside of the socket housing 1. The hook 8 is connected to the U-shaped lever 10. The height of the hook 8 can be adjusted by moving the U-shaped lever 10. A pin 11 is slidably provided on the U-shaped lever 10. The socket housing 1 is provided with a positioning hole 12 that matches the pin 11. When the pin 11 is inserted into the positioning hole 12, the U-shaped lever 10 is positioned. After the hook 8 is connected to the protrusion 9, the plug housing 2 can be moved into the socket housing 1 by moving the U-shaped lever 10 upward, thus completing the connection between the two.

[0049] The push block 13 is slidably set in the socket housing 1 inside the positioning hole 12. When the temperature of the conductive core 3 is higher than the set value, the push block 13 can push the pin 11 to move outward. When the pin 11 moves out of the positioning hole 12, the U-shaped lever 10 loses its positioning effect. When the U-shaped lever 10 loses its positioning effect, the hook 8 moves downward, the plug housing 2 moves out of the socket housing 1, and the conductive plate 5 separates from the conductive core 3, realizing the power-off function.

[0050] As an embodiment of the present invention, a wedge-shaped portion 14 is provided at the bottom of the conductive core 3. By providing the wedge-shaped portion 14, the conductive plate 5 can form a surface contact with it, providing a conductive effect. Two slides 15 are slidably arranged inside the plug housing 2 along the height direction. There are two conductive plates 5, which are respectively hinged to the top of the two slides 15. When the conductive plate 5 contacts the wedge-shaped portion 14, it can automatically adjust according to the inclination angle of its inclined surface, further ensuring the connection quality. A spring 16 is provided inside the plug housing 2 to push the slides 15 to move upward. The spring 16 can provide an upward thrust for the conductive plate 5, ensuring that the conductive plate 5 is always close to the wedge-shaped portion 14, avoiding gaps between the contact surfaces due to equipment vibration, and improving the conductive effect.

[0051] As an embodiment of the present invention, a cable connecting tube 17 for connecting external cables is fixedly provided at the bottom of the plug housing 2, and two conductive plates 5 are electrically connected to the cable connecting tube 17 through flexible braided copper busbars 18 to ensure that the conductive plates 5 can be angled.

[0052] As an embodiment of the present invention, a guide groove 19 is provided on the inner wall of the plug housing 2, and guide blocks 20 matching the guide groove 19 are fixedly provided on both sides of the slide 15. The movement trajectory of the slide 15 is restricted by the cooperation between the guide groove 19 and the guide blocks 20. A support block 33 is fixedly provided on the side surface of the slide 15 near the conductive plate 5. The support block 33 can support the bottom rear surface of the conductive plate 5 to ensure that a V-shaped opening is formed between the two conductive plates 5 in a natural state, so that the wedge-shaped part 14 can be smoothly inserted between the two conductive plates 5.

[0053] As an embodiment of the present invention, a heat-conducting rod 21 extending toward the positioning hole 12 is fixedly provided on the conductive core 3. The heat-conducting rod 21 is integrally formed with the conductive core 3 to improve the heat conduction effect. The push block 13 slides on the end of the heat-conducting rod 21. A memory alloy spring 22 is fitted on the outside of the heat-conducting rod 21. The heat-conducting rod 21 can heat the memory alloy spring 22. When the memory alloy spring 22 is heated and elongated, it will push the push block 13 to move toward the positioning hole 12, thereby pushing the pin 11 out of the positioning hole 12.

[0054] As an embodiment of the present invention, dovetail slide rails 23 are provided on both sides of the socket housing 1. Hook 8 slides on the dovetail slide rails 23 to ensure that hook 8 moves up and down. Pin 24 is fixedly provided on the outside of hook 8. Elongated holes 25 are provided on both sides of U-shaped lever 10. Pin 24 slides in the elongated holes 25 to realize that when U-shaped lever 10 swings up and down, it drives hook 8 to move up and down.

[0055] As an embodiment of the present invention, a plurality of heat dissipation fins 26 are installed on the condensation section of the heat pipe 6 to improve the heat dissipation effect of the heat pipe 6. A heat dissipation protective cover 27 is installed on the socket housing 1 to be snapped onto the outside of the plurality of heat dissipation fins 26 to prevent the heat dissipation fins 26 from being damaged by impact, and at the same time to prevent personnel from touching the heat pipe 6 and the heat dissipation fins 26, thereby reducing the risk of electric shock.

[0056] In one embodiment of the present invention, a mounting cylinder 28 is fixedly provided on the U-shaped lever 10, and the pin 11 slides inside the mounting cylinder 28. A second spring 29 is provided inside the mounting cylinder 28 to push the pin 11 outward, ensuring that the pin 11 will not easily pop out after being inserted into the positioning hole 12. At the same time, the thrust generated by the second spring 29 is less than the thrust generated by the shape memory alloy spring 22 after being heated. Openings 30 are provided on both sides of the mounting cylinder 28, and levers 31 are fixedly provided on both sides of the pin 11. The levers 31 extend through the openings 30 to the outside of the mounting cylinder 28. When it is necessary to move the U-shaped lever 10, pulling the levers 31 can remove the pin 11 from the positioning hole 12 (e.g., Figure 11 , Figure 12 (The state shown).

[0057] As an embodiment of the present invention, a clamp 32 is fixedly provided on the conductive core 3, and a set bolt is installed on the clamp 32 to realize the detachable connection between the conductive core 3 and the electrode post 4.

[0058] As an embodiment of the present invention, a limiting plate 34 is fixedly provided inside the socket housing 1. The top of the wedge-shaped part 14 can abut against the bottom of the limiting plate 34. When the wedge-shaped part 14 is subjected to a pushing force from the conductive plate 5, the limiting plate 34 can provide support for the wedge-shaped part 14, reducing the risk of deformation of the conductive core 3.

[0059] The working principle and usage process of this invention are as follows: During connection, the operator hangs the plug housing 2 onto the hook 8, then aligns the plug housing 2 with the open end at the bottom of the socket housing 1. Pushing the U-shaped lever 10 upwards moves the hook 8 upwards, causing the plug housing 2 to be inserted into the socket housing 1. At the same time, the conductive plate 5 contacts the conductive core 3 to complete the electrical connection. When the pin 11 on the U-shaped lever 10 is inserted into the positioning hole 12, the U-shaped lever 10 is positioned, completing the fixation of the plug housing 2 and the socket housing 1. After the plug and socket are connected, the two conductive plates 5 are subjected to the wedge-shaped part 1. The compression of spring 16 by the pressure of spring 4 ensures that the two conductive plates 5 remain in contact with the wedge-shaped part 14, preventing gaps from forming between their contact surfaces due to equipment vibration and improving conductivity stability. The cooperation between the conductive plates 5 and the wedge-shaped part 14 achieves surface contact, increasing the contact area and reducing resistance. Furthermore, by hinged to the slide 15, the conductive plates 5 can be adaptively fine-tuned to match the tilt angle of the wedge-shaped part 14, further ensuring effective contact. When the conductive core 3 generates heat, it can absorb and condense heat through the evaporation section of the heat pipe 6. The heat pipe 6 can dissipate heat (when the evaporation section of the heat pipe is heated, the working liquid inside the core evaporates and carries away heat, which is the latent heat of vaporization of the working liquid. The vapor flows from the central channel to the condensation section of the heat pipe, condenses into liquid, and releases latent heat. Under the action of capillary force, the liquid flows back to the evaporation section. In this way, a closed loop is completed, thereby transferring a large amount of heat from the heating section to the heat dissipation section). The heat pipe 6 cools the conductive core 3, preventing thermal deformation of the electrode post 4 and the sealing structure due to excessive temperature, and ensuring the stability of the vacuum conditions inside the flywheel energy storage device. In addition to heat dissipation measures, another protection measure is provided. When the conductive core 3 overheats, the heat will be transferred to the heat-conducting rod 21. The heat-conducting rod 21 can heat the memory alloy spring 22. After the memory alloy spring 22 is heated, it can extend and push the push block 13. The push block 13 can push the pin 11 out of the positioning hole 12, so that the U-shaped lever 10 loses its positioning effect. When the U-shaped lever 10 loses its positioning effect, the hook 8 moves downward, the plug housing 2 will automatically move out of the socket housing 1, the conductive plate 5 will separate from the conductive core 3, realize the power-off function, and further avoid the electrode post 4 from overheating.

[0060] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A thermostatic connector suitable for flywheel energy storage, characterized in that, include: The socket housing (1) and the plug housing (2) are provided with an open end at the bottom and the plug housing (2) is inserted into the socket housing (1) from bottom to top. The conductive core (3) is set inside the socket housing (1), and one end of it is electrically connected to the electrode post (4) on the flywheel energy storage device. The conductive plate (5) is disposed inside the plug housing (2). When the plug housing (2) is inserted into the socket housing (1), the conductive plate (5) contacts the conductive core (3) and forms an electrical connection. A socket (7) is provided inside the heat pipe (6) and the conductive core (3). The evaporation section of the heat pipe (6) is inserted into the socket (7), and the condensation section of the heat pipe (6) is located outside the socket housing (1). Hooks (8) are slidably disposed on both sides of the socket housing (1), and protrusions (9) matching the hooks (8) are provided on both sides of the plug housing (2); A U-shaped lever (10) is hinged to the outside of the socket housing (1). A hook (8) is connected to the U-shaped lever (10). The height of the hook (8) can be adjusted by moving the U-shaped lever (10). A pin (11) is slidably provided on the U-shaped lever (10). A positioning hole (12) matching the pin (11) is provided on the socket housing (1). When the pin (11) is inserted into the positioning hole (12), the U-shaped lever (10) is positioned. The push block (13) is slidably set in the socket housing (1) inside the positioning hole (12). When the temperature of the conductive core (3) is higher than the set value, the push block (13) can push the pin (11) to move outward. When the pin (11) moves out of the positioning hole (12), the U-shaped lever (10) will lose its positioning effect.

2. A thermostatic connector suitable for flywheel energy storage according to claim 1, characterized in that, The bottom of the conductive core (3) is provided with a wedge-shaped part (14). Two slides (15) are slidably arranged inside the plug housing (2) along the height direction. There are two conductive plates (5) and they are respectively hinged to the top of the two slides (15). When the conductive plate (5) contacts the wedge-shaped part (14), it can automatically adjust according to the inclination angle of its slope. The plug housing (2) is provided with a spring (16) for pushing the slides (15) to move upward.

3. A thermostatic connector suitable for flywheel energy storage according to claim 2, characterized in that, The bottom of the plug housing (2) is fixedly provided with a cable connecting tube (17), and two conductive plates (5) are electrically connected to the cable connecting tube (17) through flexible braided copper busbars (18).

4. A thermostatic connector suitable for flywheel energy storage according to claim 2, characterized in that, A guide groove (19) is provided on the inner wall of the plug housing (2). Guide blocks (20) matching the guide groove (19) are fixedly provided on both sides of the slide (15). A support block (33) is fixedly provided on the side surface of the slide (15) near the conductive plate (5).

5. A thermostatic connector suitable for flywheel energy storage according to claim 1, characterized in that, A heat-conducting rod (21) extending toward the positioning hole (12) is fixedly installed on the conductive core (3). The push block (13) slides on the end of the heat-conducting rod (21). A memory alloy spring (22) is fitted on the outside of the heat-conducting rod (21). When the memory alloy spring (22) is heated and elongated, it will push the push block (13) to move toward the positioning hole (12).

6. A thermostatic connector suitable for flywheel energy storage according to claim 1, characterized in that, The socket housing (1) is provided with dovetail slide rails (23) on both sides of the exterior. The hook (8) slides on the dovetail slide rails (23). The hook (8) is fixedly provided with a pin (24) on the outside. The U-shaped lever (10) is provided with elongated holes (25) on both sides. The pin (24) slides in the elongated holes (25).

7. A thermostatic connector suitable for flywheel energy storage according to claim 1, characterized in that, Multiple heat dissipation fins (26) are installed on the condensation section of the heat pipe (6), and a heat dissipation protective cover (27) that can be fastened to the outside of the multiple heat dissipation fins (26) is installed on the socket housing (1).

8. A thermostatic connector suitable for flywheel energy storage according to claim 1, characterized in that, A mounting cylinder (28) is fixedly installed on the U-shaped lever (10). The pin (11) slides inside the mounting cylinder (28). A spring (29) is installed inside the mounting cylinder (28) to push the pin (11) outward. Openings (30) are provided on both sides of the mounting cylinder (28). A lever (31) is fixedly installed on both sides of the pin (11). The lever (31) passes through the opening (30) and extends to the outside of the mounting cylinder (28).

9. A thermostatic connector suitable for flywheel energy storage according to claim 1, characterized in that, A pipe clamp (32) is fixedly installed on the conductive core (3), and a set bolt is installed on the pipe clamp (32).

10. A thermostatic connector suitable for flywheel energy storage according to claim 1, characterized in that, A limiting plate (34) is fixedly installed inside the socket housing (1), and the top of the wedge-shaped part (14) can abut against the bottom of the limiting plate (34).

Images