Electric connection device

Abstract

The invention belongs to the technical field of electric connectors, and provides an electric connecting device which is characterized in that the front end of a socket shell is fixedly connected with a fixed baffle, the front end of the fixed baffle is fixedly connected with a front-end outer sleeve and a shielding sleeve, the shielding sleeve is sleeved with the front-end outer sleeve, and a first annular cavity is formed between the front-end outer sleeve and the shielding sleeve; the fixed baffle is fixedly connected with a socket terminal, the socket terminal is located in a shielding sleeve, and the shielding sleeve and the socket terminal form a second annular cavity; the front end of the plug substrate is fixedly connected with an insulating and sealing ring sleeve, a heat dissipation cylinder and an insertion core; when the socket end and the plug end are inserted oppositely, the insertion core is inserted into the socket terminal, the insulating and sealing ring sleeve is inserted into the first annular cavity, the heat dissipation cylinder is inserted into the second annular cavity and sleeves the socket terminal, and a heat dissipation medium is arranged in the heat dissipation cylinder. According to the invention, functions of effective heat dissipation and comprehensive shielding are integrated, and compared with the prior art, efficient heat dissipation can be carried out while effective shielding is carried out.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric connectors, and in particular relates to an electric connecting device. Background Art

[0002] Electrical connectors are indispensable components in electronic devices and are widely used in various electrical devices and systems to connect and disconnect circuits. For scenarios with high electromagnetic interference environments, precision electronic equipment, or signal-sensitive systems, shielding technology is needed to protect the signal transmission inside the connector from external electromagnetic radiation interference, while preventing internal signals from leaking outward to ensure signal integrity and system reliability. Current shielding solutions usually use metal shielding layers and metal shielding shells to construct a shielding layer on the outside of the electrical connector by shielding metal. However, if the electrical connection device is faced with high temperatures, long-term use, high currents, etc. during use, it is necessary to dissipate heat. However, the constructed metal shielding layer also forms a thermal resistance barrier, resulting in the inability to dissipate heat in time. Therefore, the existing technology often punches holes in the metal shielding layer, and the diameter of the hole needs to be designed so as not to affect the shielding effect. However, when the hole size is close to the signal wavelength, the electromagnetic wave will undergo a diffraction and guidance effect, resulting in leakage of high-frequency signals. Therefore, the diameter of the hole needs to be strictly calculated, which undoubtedly increases the complexity and precision requirements. In addition, the heat dissipation performance of the heat dissipation hole structure is relatively limited. Therefore, in practical applications, the heat dissipation performance and shielding performance of the electrical connection device are usually difficult to balance. To address this problem, the present invention provides a new technical solution, which aims to provide an electrical connection device with excellent shielding effect and better heat dissipation performance. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides an electrical connection device to solve the problems in the prior art. The technical solution adopted by the present invention is: An electrical connection device comprises a socket end and a plug end; The socket end comprises a socket shell, a fixed baffle, a front end outer sleeve, a shielding sleeve and a socket terminal; the front end of the socket shell is fixedly connected to the fixed baffle, the front end of the fixed baffle is fixedly connected to the front end outer sleeve and the shielding sleeve, the front end outer sleeve is sleeved on the shielding sleeve, a first annular chamber is formed between the front end outer sleeve and the shielding sleeve, the fixed baffle is fixedly connected to the socket terminal, the socket terminal is located in the shielding sleeve, and the shielding sleeve and the socket terminal form a second annular chamber; The plug end includes a plug base plate, and an insulating and sealing ring sleeve, a heat dissipation tube and a plug core which are sequentially sleeved from the outside to the inside; the front end of the plug base plate is fixedly connected to the insulating and sealing ring sleeve, the heat dissipation tube and the plug core; When the socket end and the plug end are plugged together, the insert is plugged into the socket terminal, the insulating and sealing ring sleeve is plugged into the first annular cavity, the heat dissipation tube is plugged into the second annular cavity and sleeved on the socket terminal, and a heat dissipation medium is arranged inside the heat dissipation tube.

[0004] Furthermore, an annular accommodating cavity is provided in the cylinder body of the heat dissipation cylinder, the accommodating cavity is coaxial with the insert, and the heat dissipation medium is arranged in the accommodating cavity; A plurality of heat-conducting tubes are fixedly connected to the heat-dissipating tube, and the heat-conducting tubes are distributed in a plurality of rings along the axial direction of the heat-dissipating tube. Each ring has a plurality of heat-conducting tubes evenly distributed along the circumference of the heat-dissipating tube. The heat-dissipating medium is arranged inside the heat-conducting tube and is connected to the accommodating cavity.

[0005] Furthermore, a plurality of axial grooves are arranged on the inner wall surface of the shielding sleeve, and a plurality of annular grooves are arranged on the side surfaces of the axial grooves, the plurality of axial grooves correspond one-to-one to the positions of the plurality of heat-conducting pipes, and the plurality of annular grooves correspond one-to-one to the heat-conducting pipes on the plurality of rings; When the socket end and the plug end are plugged together, the end of the heat pipe is located in the axial groove. By rotating the plug substrate, the heat pipe is moved into the annular groove, so that the socket end and the plug end form an axial constraint.

[0006] Furthermore, a fluid heat-conducting medium is arranged in the second annular chamber and outside the heat-dissipating tube, and the second annular chamber is connected to a circulation mechanism, and the circulation mechanism is used for circulating the fluid heat-conducting medium to dissipate heat.

[0007] Further, the circulation mechanism includes a storage tube, a piston, an inner shell and a connecting tube; The socket shell is provided with an open groove, the end surface of the open groove is fixedly connected to the fixed baffle, a mounting cavity is formed between the fixed baffle and the open groove, the inner shell is fixedly arranged in the mounting cavity, a circulation cavity is arranged in the inner shell, the outer wall surface of the socket shell is fixedly connected to the storage tube, the storage tube is connected with a branch tube, the branch tube passes through the socket shell and the inner shell and is connected with the circulation cavity, the piston is slidably arranged in the storage tube, the piston is connected to a driving device for driving its movement, a through hole is provided on the fixed baffle, the connecting tube is fixedly connected in the through hole, and both ends of the connecting tube are respectively connected with the second annular chamber and the circulation cavity; The fluid heat-conducting medium is disposed between the piston and the branch pipe, inside the branch pipe, and inside the circulation chamber; There are two circulation mechanisms. When the pistons of the two circulation mechanisms move in opposite directions, the fluid heat transfer medium in one of the second annular chambers flows into one of the circulation chambers, and the fluid heat transfer medium in the other circulation chamber flows into the other second annular chamber.

[0008] Furthermore, the storage tube is provided with heat dissipation fins.

[0009] Furthermore, the driving device includes a linear driving device and a push rod. The linear driving device is fixedly connected to the outer surface of the front end outer sleeve, and the output end of the linear driving device is fixedly connected to the push rod. The push rod passes through the storage tube and is fixedly connected to the piston.

[0010] Furthermore, an air pressure balance hole is provided on the plug substrate, the air pressure balance hole is connected to the second annular chamber and the external environment, and the outer end of the air pressure balance hole is threadedly connected to a plug; When the socket end and the plug end are plugged into each other, the pistons of the two circulation mechanisms move toward the branch pipe at the same time and open the air pressure balance hole, so that the fluid heat transfer medium in the two inner shells enters the second annular chamber and is in the external space of the heat dissipation cylinder.

[0011] Furthermore, the socket terminal is connected to a first cable via a first wire, and the ferrule is connected to a second cable via a second wire.

[0012] Furthermore, a plurality of elastic buckles are fixedly provided on the end of the front outer sleeve, the rear end of the plug substrate is fixedly connected to the elastic plate, and the elastic buckles are clipped on the elastic plate.

[0013] The present invention has the following beneficial effects: (1) The present invention conducts the heat of the socket terminal and the plug core to the heat dissipation medium in the heat dissipation tube for heat dissipation, thereby effectively dissipating the heat of the socket terminal and the plug core into the heat dissipation medium, forming a preliminary heat dissipation and cooling function, ensuring the temperature environment of the socket terminal and the plug core, enabling the normal operation of the plug-in contact part, and ensuring the stable transmission of electrical signals; (2) The shielding sleeve forms an annular shielding layer, which can effectively shield external electromagnetic interference and improve the stability and safety of the electrical connection device during operation. In addition, the shielding sleeve of the present invention is a uniform annular component with no holes or gaps on its surface. Compared with the prior art, the present invention can better ensure the integrity and effectiveness of electromagnetic shielding and improve the shielding effect. (3) The present invention integrates the functions of effective heat dissipation and comprehensive shielding, thereby improving the comprehensive performance of the electrical connection device. Compared with the prior art, the present invention can achieve efficient heat dissipation while providing effective shielding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram when the socket end and the plug end are separated; Figure 3 is a schematic diagram of the axial groove and the annular groove; Figure 4 It is a schematic diagram of the distribution relationship of heat pipes; In the figure: a first cable 1, a socket shell 2, an inner shell 3, a storage tube 4, a piston 5, a push rod 6, a fixed baffle 7, a connecting tube 8, a front outer sleeve 9, an insulating and sealing ring sleeve 10, a shielding sleeve 11, a linear push device 12, an elastic buckle 13, a plug 14, an elastic plate 15, a second cable 16, a first wire 17, a socket terminal 18, a plug core 19, a fluid heat-conducting medium 20, a heat-dissipating medium 21, a heat-conducting tube 22, an axial groove 23, a second wire 24, a plug substrate 25, a heat-dissipating tube 26, an annular groove 27, and a connecting ring 28. DETAILED DESCRIPTION

[0015] The following will be combined with the embodiments of the present invention Figure 1-Figure 4 , the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0016] It should be noted that in the present invention, "front end" or "front" refers to the opposite end of the socket end and the plug end. Figure 1 , Figure 2 The right side of the socket end and the left side of the plug end; "rear end" and "rear" refer to the end opposite to the socket end and the plug end, such as Figure 1 , Figure 2 The left side of the socket end and the right side of the plug end; like Figure 1 , an electrical connection device, comprising a socket end and a plug end; The socket end comprises a socket shell 2, a fixed baffle 7, a front end outer sleeve 9, a shielding sleeve 11 and a socket terminal 18; the front end of the socket shell 2 is fixedly connected to the fixed baffle 7, the front end of the fixed baffle 7 is fixedly connected to the front end outer sleeve 9 and the shielding sleeve 11, the front end outer sleeve 9 is sleeved on the shielding sleeve 11, and a first annular chamber is formed between the front end outer sleeve 9 and the shielding sleeve 11, the fixed baffle 7 is fixedly connected to the socket terminal 18, the socket terminal 18 is located in the shielding sleeve 11, and the shielding sleeve 11 and the socket terminal 18 form a second annular chamber; The plug end includes a plug base plate 25, and an insulating and sealing ring sleeve 10, a heat dissipation tube 26 and a plug core 19 which are sequentially sleeved from the outside to the inside; the front end of the plug base plate 25 is fixedly connected to the insulating and sealing ring sleeve 10, the heat dissipation tube 26 and the plug core 19; When the socket end and the plug end are plugged together, the insert 19 is plugged into the socket terminal 18, the insulating and sealing ring sleeve 10 is plugged into the first annular chamber, the heat dissipation tube 26 is plugged into the second annular chamber and sleeved on the socket terminal 18, and a heat dissipation medium 21 is arranged inside the heat dissipation tube 26.

[0017] Specifically, the socket terminal 18 and the plug core 19 are both prior art, and the two are plugged into each other to achieve the function of electrical transmission such as power and signals. The rear end of the socket terminal 18 is fixedly connected to the fixed baffle 7, and the rear end of the socket terminal 18 is connected to the first cable 1 through the first wire 17, and the first wire 17 passes through the fixed baffle 7. The first wire 17 and the first cable 1 can be connected through the connector of the prior art; the rear end of the plug core 19 is fixedly connected to the plug substrate 25, and the rear end of the plug core 19 is connected to the second cable 16 through the second wire 24, and the second wire 24 passes through the plug substrate 25. When the socket end and the plug end are plugged into each other, the socket terminal 18 and the plug core 19 are plugged into each other, thereby achieving the function of electrical transmission such as power and signals between the first cable 1 and the second cable 16.

[0018] In the present invention, the front outer sleeve 9, the shielding sleeve 11, the socket terminal 18, the insulating and sealing ring sleeve 10, the heat dissipation sleeve 26 and the plug core 19 are coaxially arranged. The first annular chamber is adapted to the insulating and sealing ring sleeve 10. When the socket end and the plug end are plugged together, the insulating and sealing ring sleeve 10 is plugged into the first annular chamber, and the end of the insulating and sealing ring sleeve 10 abuts against the fixed baffle 7, the heat dissipation sleeve 26 abuts against the fixed baffle 7, and the shielding sleeve 11 and the front outer sleeve 9 abut against the plug substrate 25.

[0019] like Figure 1, the present invention, from the inside to the outside, comprises a plug core 19, a socket terminal 18, a heat sink 26, a shielding sleeve 11, an insulating and sealing ring sleeve 10 and a front outer sleeve 9. Among them, the inner wall surface of the heat sink 26 contacts the outer wall surface of the socket terminal 18, thereby forming contact heat conduction, and the heat of the socket terminal 18 and the plug core 19 is conducted to the heat dissipation medium 21 in the heat sink 26 for heat dissipation, thereby effectively dissipating the heat of the socket terminal 18 and the plug core 19 into the heat dissipation medium 21, forming a preliminary heat dissipation and cooling function, ensuring the temperature environment of the socket terminal 18 and the plug core 19, so that the plug-in contact part can operate normally, and ensure the stable transmission of electrical signals. On the basis of the above heat dissipation function, the shielding sleeve 11 forms an annular shielding layer, which can effectively shield external electromagnetic interference and improve the stability and safety of the electrical connection device during operation. In addition, the shielding sleeve 11 of the present invention is a uniform annular component, and its surface has no holes and no gaps. Compared with the prior art, the present invention can better ensure the integrity and effectiveness of electromagnetic shielding and improve the shielding effect. The insulating and sealing ring sleeve 10 has the functions of insulation, waterproof, dustproof, sealing, etc., and can effectively prevent external moisture, dust and other impurities from entering the second annular chamber, and the insulation ensures the safety of use. At the same time, the setting of the insulating and sealing ring sleeve 10 can also enhance the structural strength between the socket end and the plug end to avoid bending.

[0020] The shielding sleeve 11 can be made of metal materials or alloy materials, and the insulating and sealing ring sleeve 10 can be made of ceramics, quartz glass, silicon carbide, etc. An additional waterproof layer can be laid on the outer wall of the insulating and sealing ring sleeve 10 to improve the waterproof performance. The waterproof layer can be rubber, waterproof coating, etc. The heat dissipation medium 21 can be thermal grease, thermal oil, etc.

[0021] In addition, the front end of the plug substrate 25 can be fixedly connected to the connecting ring 28, and the rear end of the heat dissipation tube 26 can be provided with an annular opening adapted to the connecting ring 28. The annular opening of the heat dissipation tube 26 is connected to the connecting ring 28 through threads, thereby facilitating the installation and filling of the heat dissipation medium 21.

[0022] Furthermore, an annular accommodating cavity is provided in the cylinder body of the heat dissipation cylinder 26, the accommodating cavity is coaxial with the insert 19, and the heat dissipation medium 21 is arranged in the accommodating cavity; A plurality of heat conducting tubes 22 are fixedly connected to the heat dissipation tube 26 . The heat conducting tubes 22 are distributed in a plurality of rings along the axial direction of the heat dissipation tube 26 . Each ring has a plurality of heat conducting tubes 22 evenly distributed along the circumference of the heat dissipation tube 26 . The heat dissipation medium 21 is arranged inside the heat conducting tube 22 and is connected to the accommodating cavity.

[0023] The accommodating cavity is arranged around the circumference of the plug core 19, and it wraps the socket terminal 18 and the plug core 19. The multiple heat pipes 22 have the function of increasing the heat dissipation area. One end of the heat pipe 22 is closed, and the other end is open and fixedly connected to the heat dissipation tube 26. For the arrangement of the heat pipes 22, for example, there are 15 heat pipes 22, and 3 rings of heat pipes 22 are distributed in the axial direction of the heat dissipation tube 26, and each ring is provided with 5 heat pipes 22, and these 5 heat pipes 22 are evenly distributed around the circumference of the heat dissipation tube 26.

[0024] Furthermore, a plurality of axial grooves 23 are provided on the inner wall surface of the shielding sleeve 11, and a plurality of annular grooves 27 are provided on the side surfaces of the axial grooves 23. The plurality of axial grooves 23 correspond to the positions of the plurality of heat conducting pipes 22 one by one, and the plurality of annular grooves 27 correspond to the heat conducting pipes 22 on the plurality of rings one by one. When the socket end and the plug end are plugged together, the end of the heat pipe 22 is located in the axial groove 23. By rotating the plug base plate 25, the heat pipe 22 is moved into the annular groove 27, so that the socket end and the plug end form an axial constraint.

[0025] like Figure 3 , Figure 4 The axial groove 23 is arranged on the inner wall surface of the shielding sleeve 11 and distributed along the axial direction of the shielding sleeve 11. The annular groove 27 is formed by opening the side of the axial groove 23. When the socket end and the plug end are inserted into each other, the heat pipe 22 moves along the corresponding axial groove 23. The heat pipe 22 and the axial groove 23 form a structure similar to a spline. When the socket end and the plug end are inserted into place, the heat pipe 22 is just in the position of the annular groove 27. At this time, by rotating the plug end, that is, rotating the plug substrate 25. To allow the heat pipe 22 to be clamped into the annular groove 27, thereby forming an axial constraint structure. The constraint structure of the annular groove 27 and the heat pipe 22 can form a tensile structure between the socket end and the plug end, further improving the stability of the present invention during use, avoiding accidental detachment of the socket end and the plug end, thereby ensuring the stability of electrical transmission such as power and signals.

[0026] In addition, a plurality of elastic buckles 13 are fixedly provided at the end of the front outer sleeve 9, and the rear end of the plug substrate 25 is fixedly connected to the elastic plate 15, and the elastic buckles 13 are clamped on the elastic plate 15. The elastic buckles 13 are prior art, such as metal elastic sheets, and a clamping portion is provided at the end thereof. The elastic plate 15 can be a rubber plate.

[0027] When the present invention is installed, the socket end and the plug end are first inserted into each other, and then the elastic buckle 13 is snapped onto the elastic plate 15 to form a snap-on structure. The elastic force of the elastic plate 15 can tightly connect the socket end and the plug end. Then, the plug end is rotated to snap the heat pipe 22 into the annular groove 27 to form an axial tensile structure.

[0028] Due to some high-temperature environment usage scenarios, the dispersed heat dissipation function of the heat dissipation medium 21 alone cannot maintain the stable operation of the connector. Therefore, the present invention also designs a heat circulation export function, which is as follows: Furthermore, a fluid heat-conducting medium 20 is arranged in the second annular chamber and outside the heat-dissipating tube 26 , and the second annular chamber is connected to a circulation mechanism, and the circulation mechanism is used for circulating the fluid heat-conducting medium 20 to dissipate heat.

[0029] The fluid heat-conducting medium 20 is an existing technology, such as liquid silicone, heat-conducting oil, heat-conducting gel, etc., and has good thermal conductivity, fluidity and insulation. The fluid heat-conducting medium 20 is circulated through the circulation mechanism, so that the fluid heat-conducting medium 20 dissipates heat outside and absorbs heat in the second chamber, thereby taking out the heat of the plug 19 and the socket terminal 18, ensuring the temperature environment of the plug 19 and the socket terminal 18, and further improving the working stability and reliability of the electrical connection device.

[0030] The circulation mechanism of the present invention specifically includes the following structure: the circulation mechanism includes a storage tube 4, a piston 5, an inner shell 3 and a connecting tube 8; The socket shell 2 is provided with an open groove, the end surface of the open groove is fixedly connected to the fixed baffle 7, and a mounting cavity is formed between the fixed baffle 7 and the open groove. The inner shell 3 is fixedly arranged in the mounting cavity, and a circulation cavity is arranged in the inner shell 3. The outer wall surface of the socket shell 2 is fixedly connected to the storage tube 4, and the storage tube 4 is connected with a branch pipe, and the branch pipe passes through the socket shell 2 and the inner shell 3 and is connected with the circulation cavity. The piston 5 is slidably arranged in the storage tube 4, and the piston 5 is connected to a driving device for driving its movement. A through hole is opened on the fixed baffle 7, and the connecting tube 8 is fixedly connected in the through hole, and the two ends of the connecting tube 8 are respectively connected with the second annular chamber and the circulation cavity; The fluid heat-conducting medium 20 is disposed between the piston 5 and the branch pipe, inside the branch pipe, and inside the circulation chamber; There are two circulation mechanisms. When the pistons 5 of the two circulation mechanisms move in opposite directions, the fluid heat transfer medium 20 in one of the second annular chambers flows into one of the circulation chambers, and the fluid heat transfer medium 20 in the other circulation chamber flows into the other second annular chamber.

[0031] The two circulation mechanisms are symmetrically arranged, and the fluid heat-conducting medium 20 is sucked or squeezed by sliding of the piston 5, so that the fluid heat-conducting medium 20 enters or is discharged from the second chamber.

[0032] The specific implementation process is as follows: in a high temperature environment, the pistons 5 of the two circulation mechanisms move back and forth in opposite directions, so that the fluid heat-conducting medium 20 flows, and a part of the fluid heat-conducting medium 20 flows through the storage tube 4, the branch pipe, the circulation cavity, the connecting pipe 8 to the second chamber; and another part of the fluid heat-conducting medium 20 flows through the second chamber, the connecting pipe 8, the circulation cavity, the branch pipe to the storage tube 4; therefore, at this time, for the two storage tubes 4, one stores more fluid heat-conducting medium 20, and the other stores less fluid heat-conducting medium 20; by dissipating heat to the storage tube 4, the heat of the fluid heat-conducting medium 20 is discharged to the external environment, and the fluid heat-conducting medium 20 after cooling returns to the second chamber to continue to absorb heat, forming a reciprocating cycle of heat absorption and heat release, which can effectively extract and disperse the heat of the socket terminal 18 and the plug core 19.

[0033] For heat dissipation of the storage tube 4, heat dissipation fins may be provided on the outer surface thereof. The present invention achieves heat dissipation of the storage tube 4 through the following embodiments: 1. For mobile equipment such as vehicles, EMUs, trains, etc., an air inlet can be introduced on the frame, and the air inlet is aimed at the storage tube 4. Therefore, during the operation of the vehicle, the storage tube 4 and the fluid heat-conducting medium 20 are cooled by the external wind flow; 2. For fixed equipment, fans can be arranged to achieve overall heat dissipation of the storage tube 4, the fluid heat-conducting medium 20 and the electrical connector; 3. When the outside temperature is normal but the electrical connector needs to flow a large current, the storage tube 4 can be exposed to the outside and the heat can be naturally dissipated by external air convection.

[0034] Furthermore, the driving device includes a linear driving device 12 and a push rod 6. The linear driving device 12 is fixedly connected to the outer surface of the front end outer sleeve 9, and the output end of the linear driving device 12 is fixedly connected to the push rod 6. The push rod 6 passes through the storage tube 4 and is fixedly connected to the piston 5.

[0035] The linear driving device 12 is a prior art, such as a micro electric push rod, a micro linear motor. The linear driving devices 12 of the two circulation mechanisms are controlled by a PLC program in the prior art. When the electrical connector works normally, the two linear driving devices 12 push the piston 5 to reciprocate in opposite directions through the push rod 6, so that the fluid heat transfer medium 20 circulates to dissipate heat.

[0036] Furthermore, a pressure balance hole is provided on the plug substrate 25, the pressure balance hole is connected to the second annular chamber and the external environment, and the outer end of the pressure balance hole is threadedly connected to the plug 14; When the socket end and the plug end are plugged into each other, the pistons 5 of the two circulation mechanisms move toward the branch pipe at the same time and open the air pressure balance hole, so that the fluid heat transfer medium 20 in the two inner shells 3 enters the second annular chamber and is in the external space of the heat dissipation cylinder 26.

[0037] Since the fluid heat-conducting medium 20 is involved in the process of filling the second chamber, the present invention designs a related process, which is as follows: like Figure 2 When the socket end and the plug end are not plugged in, the piston 5 is at the maximum position away from the branch pipe, and the fluid heat-conducting medium 20 is stationary in the connecting pipe 8 under the action of atmospheric pressure. When the socket end and the plug end are plugged in, the plug 14 is first removed, and then the piston 5 is pushed toward the branch pipe through the push rod 6 by the two linear push devices 12, so that the fluid heat-conducting medium 20 enters the second chamber and fills the space between the inner wall surface of the shielding sleeve 11 and the outer wall surface of the heat dissipation cylinder 26. In this process, air is discharged through the air pressure balance hole to balance the air pressure. After completion, there is still a gap between the piston 5 and the branch pipe, which is sufficient for the movement stroke required by the piston 5 during the circulation of the fluid heat-conducting medium 20.

[0038] In view of the fact that the present invention needs to fill the fluid heat-conducting medium 20 to the plug end, the electrical connector of the present invention is suitable for scenarios where the connection state needs to be maintained for a long time, such as data center server cabinets, uninterruptible power supply systems, etc.; but is not suitable for scenarios where frequent plugging and unplugging is required, such as household appliances, portable devices, etc.

[0039] The embodiments described above are only descriptions of the preferred modes of the present invention and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations, modifications, and substitutions made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. An electrical connection device, characterized in that: Including a socket end and a plug end; The socket end comprises a socket housing (2), a fixed baffle (7), a front end outer sleeve (9), a shielding sleeve (11) and a socket terminal (18); the front end of the socket housing (2) is fixedly connected to the fixed baffle (7), the front end of the fixed baffle (7) is fixedly connected to the front end outer sleeve (9) and the shielding sleeve (11), the front end outer sleeve (9) is sleeved on the shielding sleeve (11), a first annular chamber is formed between the front end outer sleeve (9) and the shielding sleeve (11), the fixed baffle (7) is fixedly connected to the socket terminal (18), the socket terminal (18) is located in the shielding sleeve (11), and the shielding sleeve (11) and the socket terminal (18) form a second annular chamber; The plug end comprises a plug base plate (25), and an insulating and sealing ring sleeve (10), a heat dissipation tube (26), and a plug core (19) which are sequentially sleeved from the outside to the inside; the front end of the plug base plate (25) is fixedly connected to the insulating and sealing ring sleeve (10), the heat dissipation tube (26), and the plug core (19); When the socket end and the plug end are plugged together, the plug core (19) is plugged into the socket terminal (18), the insulating and sealing ring sleeve (10) is plugged into the first annular cavity, the heat dissipation tube (26) is plugged into the second annular cavity and sleeved on the socket terminal (18), and a heat dissipation medium (21) is provided inside the heat dissipation tube (26).

2. An electrical connection device according to claim 1, characterized in that: An annular accommodating cavity is provided in the body of the heat dissipation cylinder (26), the accommodating cavity is coaxial with the insert (19), and the heat dissipation medium (21) is arranged in the accommodating cavity; A plurality of heat-conducting pipes (22) are fixedly connected to the heat-dissipating cylinder (26); the heat-conducting pipes (22) are distributed in a plurality of ring arrays along the axial direction of the heat-dissipating cylinder (26); each ring array has a plurality of heat-conducting pipes (22) evenly distributed along the circumference of the heat-dissipating cylinder (26); the heat-dissipating medium (21) is arranged inside the heat-conducting pipe (22) and is connected to the accommodating cavity.

3. An electrical connection device according to claim 2, characterized in that: A plurality of axial grooves (23) are arranged on the inner wall surface of the shielding sleeve (11), and a plurality of annular grooves (27) are arranged on the side surfaces of the axial grooves (23), the plurality of axial grooves (23) correspond one-to-one with the positions of the plurality of heat-conducting pipes (22), and the plurality of annular grooves (27) correspond one-to-one with the positions of the plurality of heat-conducting pipes (22) in the plurality of ring arrays; When the socket end and the plug end are plugged into each other, the end of the heat conducting pipe (22) is located in the axial groove (23), and by rotating the plug base plate (25), the heat conducting pipe (22) is moved into the annular groove (27), so that the socket end and the plug end form an axial constraint.

4. An electrical connection device according to claim 2, characterized in that: A fluid heat-conducting medium (20) is arranged in the second annular chamber and outside the heat-dissipating cylinder (26), and the second annular chamber is connected to a circulation mechanism, the circulation mechanism being used to circulate the fluid heat-conducting medium (20) to dissipate heat.

5. An electrical connection device according to claim 4, characterized in that: The circulation mechanism comprises a storage tube (4), a piston (5), an inner shell (3) and a connecting tube (8); The socket shell (2) is provided with an open groove, the end surface of the open groove is fixedly connected to the fixed baffle (7), a mounting cavity is formed between the fixed baffle (7) and the open groove, the inner shell (3) is fixedly arranged in the mounting cavity, a circulation cavity is arranged in the inner shell (3), the outer wall surface of the socket shell (2) is fixedly connected to the storage tube (4), the storage tube (4) is connected with a branch tube, the branch tube passes through the socket shell (2) and the inner shell (3) and is connected with the circulation cavity, the piston (5) is slidably arranged in the storage tube (4), the piston (5) is connected to a driving device for driving the piston to move, the fixed baffle (7) is provided with a through hole, the connecting tube (8) is fixedly connected in the through hole, and the two ends of the connecting tube (8) are respectively connected with the second annular chamber and the circulation cavity; The fluid heat-conducting medium (20) is disposed between the piston (5) and the branch pipe, inside the branch pipe, and inside the circulation chamber; The circulation mechanisms are provided with two, and when the pistons (5) of the two circulation mechanisms move in opposite directions, the fluid heat-conducting medium (20) in one of the second annular chambers flows into one of the circulation chambers, and the fluid heat-conducting medium (20) in the other circulation chamber flows into the other second annular chamber.

6. An electrical connection device according to claim 5, characterized in that: The storage tube (4) is provided with heat dissipation fins.

7. An electrical connection device according to claim 5, characterized in that: The driving device comprises a linear driving device (12) and a push rod (6); the linear driving device (12) is fixedly connected to the outer surface of the front end outer sleeve (9); the output end of the linear driving device (12) is fixedly connected to the push rod (6); the push rod (6) passes through the storage tube (4) and is fixedly connected to the piston (5).

8. An electrical connection device according to claim 5, characterized in that: The plug substrate (25) is provided with an air pressure balance hole, the air pressure balance hole is connected to the second annular chamber and the external environment, and the outer end of the air pressure balance hole is threadedly connected to a plug (14); When the socket end and the plug end are plugged into each other, the pistons (5) of the two circulation mechanisms simultaneously move toward the branch pipe and open the air pressure balance hole, so that the fluid heat-conducting medium (20) in the two inner shells (3) enters the second annular chamber and is located in the external space of the heat dissipation cylinder (26).

9. An electrical connection device according to claim 1, characterized in that: The socket terminal (18) is connected to the first cable (1) via a first wire (17), and the plug core (19) is connected to the second cable (16) via a second wire (24).

10. An electrical connection device according to claim 1, characterized in that: A plurality of elastic buckles (13) are fixedly provided at the end of the front outer sleeve (9), the rear end of the plug base plate (25) is fixedly connected to the elastic plate (15), and the elastic buckles (13) are clamped on the elastic plate (15).

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