Grounding electric connector

Abstract

The invention relates to the technical field of conductive connecting devices, and particularly discloses a grounding electric connector which is characterized in that a second male end body is in elastic sliding connection with a first male end body, a sealing cavity is formed in the second male end body, and a pin module is fixedly arranged on the first male end body and is arranged in the sealing cavity; the second male end body is provided with a first opening communicated with the sealing cavity, and a first sealing door is rotationally embedded in the end part; one end of the connector female end is provided with a groove used for containing the second male end body in a sealed mode, the connector female end is provided with a second opening communicated with the jack module and the groove, a second sealing door is rotationally embedded in the part, and a driving mechanism is arranged between the second sealing door and the first sealing door. According to the grounding electric connector, the first sealing door and the second sealing door can protect the contact pin and the jack in a normal state, and a closed environment can be provided for the connection position of the contact pin and the jack through cooperative use of the groove and the second male end body, so that dustproof treatment of the contact pin and the jack is realized, and excellent and reliable electric connection is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of conductive connection devices, and in particular to a grounding electrical connector. Background Art

[0002] In electrical equipment, a grounding electrical connector refers to a connector that is structurally connected to the ground with a low resistance. During the operation of electrical equipment, charge accumulation, current leakage, lightning protection and other phenomena often occur. The grounding connector can discharge these charges and currents to the ground in a timely manner, thereby avoiding adverse effects on the normal operation of the equipment.

[0003] A Chinese patent application with application publication number CN119070091A discloses an electric vehicle wiring harness connector, which includes a connector female end and a connector plug-in end. The connector female end is provided with a plug-in slot, and the connector plug-in end is provided with a conductive column electrically connected to the contact of the plug-in slot. During the installation and connection process of the connector plug-in end and the connector female end, the air intake and exhaust unit can inhale external air and spray it out from multiple dust removal pipes. The air flow can clean the dust on the surface of the conductive column when it is inserted into the plug-in slot, reduce the dust on the surface of the conductive column, and ensure that the connection position of the wiring harness connector is effectively cleaned, thereby improving the reliability and effectiveness of the connection.

[0004] However, the above-mentioned wiring harness connector can only reduce the dust on the surface of the conductive column by using airflow blowing, but cannot eradicate or eliminate the existence of dust on the conductive column, and many conductive columns have blind spots relative to the dust removal pipe. Most of these blind spots are facing away from the nozzle of the dust removal pipe and are difficult to clean. Therefore, the dust remaining on the conductive column is still likely to affect the effect of the electrical connection.

[0005] Therefore, the art needs a grounding electrical connector to solve the above problems. Summary of the invention

[0006] The present invention provides a grounding electrical connector, aiming to solve the problem in the related art that dust residue on a conductive column may easily affect the electrical connection effect.

[0007] The grounding electrical connector of the present invention comprises a connector male end and a connector female end, wherein the connector male end is provided with a pin module, and the connector female end is provided with a socket module for plugging and unplugging the pin module, wherein the connector male end comprises a first male end body and a second male end body, wherein the second male end body is elastically and slidably connected to the first male end body, wherein a sealed cavity is provided in the second male end body, wherein the pin module is fixedly arranged on the first male end body and at least partially arranged in the sealed cavity; wherein the end portion of the second male end body which is away from the first male end body is provided with a first opening which corresponds to the pin module and is connected to the sealed cavity, and the end portion is also rotatably embedded with a first sealed door for opening and closing the first opening; One end of the female end of the connector has a groove for sealingly accommodating the second male end body, and the part of the female end of the connector adjacent to the groove is provided with a second opening corresponding to the jack module and connecting the jack module and the groove, and the part is also rotatably embedded with a second sealing door for opening and closing the second opening, and a driving mechanism is provided between the second sealing door and the first sealing door, and the driving mechanism is used to control the rotation of the second sealing door and the first sealing door when the second male end body is sealingly inserted into the groove, so as to open the second opening and the first opening.

[0008] The effect is that the present invention can form a closure for the first opening and the second opening under normal conditions by setting the first sealing door and the second sealing door, thereby isolating the connection between the pin module and the socket module and the outside world, so that external dust cannot enter the pin module and the socket module, thereby creating a dust-free environment for the pin module and the socket module, and realizing the protection of both under normal conditions. The sealed accommodation of the second male end body in the groove can provide a closed environment for the connection position of the pin module and the socket module, thereby effectively preventing external dust from entering the connection position when the pin module and the socket module are plugged in, and avoiding the contamination of the pin module and the socket module. It can be seen that under normal conditions and when connected, external dust cannot enter the pin module and the socket module, thereby eradicating and eliminating the presence of dust on the pin module and the socket module, ensuring the excellent and reliable electrical connection and improving the conductive effect.

[0009] Preferably, the driving mechanism includes a mating piece, which is arranged on the first male end body and has a free end extending through a side of the second male end body away from the first male end body, the peripheral wall of the mating piece has a convex portion, a mating groove matching the mating piece is provided at the rotation center of the second sealing door, a cam groove is provided on the groove wall of the mating groove, and the cam groove is used for the convex portion to slide into when the female end of the connector squeezes the second male end body to slide; a transmission piece is provided between the second sealing door and the first sealing door, which is used to drive the first sealing door to rotate when the second sealing door rotates.

[0010] The effect is that the cooperation between the convex part and the cam groove can realize the automatic rotation of the second sealing door, while avoiding the problem of increasing maintenance and energy supply due to the introduction of electronic control components. The setting of the transmission part enables the first sealing door to rotate synchronously with the second sealing door.

[0011] Preferably, the transmission member includes a hook portion formed on the second sealing door and a limiting portion formed on the first sealing door, and when the second sealing door rotates due to the sliding of the convex portion in the cam groove, the hook portion can hook the limiting portion to rotate the first sealing door.

[0012] Preferably, the connecting end of the mating piece is elastically slidably connected to the first male end body, and the sliding direction is consistent with the sliding direction of the second male end body. When the protrusion slides to the end of the stroke in the cam groove, the second sealing door squeezes the mating piece to make it slide with the second male end body.

[0013] The effect is that the slidable design of the fitting on the first male end body avoids interference with the overall connection operation between the male end of the connector and the female end of the connector, thus achieving an avoidance effect.

[0014] Preferably, an airbag capable of expansion and contraction is provided on the outer side of the female end of the connector, and the female end of the connector is provided with a plurality of air inlets aligned with the outer surface of the second sealing door, and the air inlets are connected to the airbag; a slot is provided at the end of the female end of the connector constituting the groove, and the airbag is provided with a notch portion communicating with the slot, and a stopper is formed at the tail end of the airbag in the notch portion, and the first male end body is provided with a plug-in matching the slot, and when the second male end body is sealingly inserted into the groove, the plug-in can be inserted into the slot and extend into the notch portion, pushing the stopper to expand the airbag.

[0015] The effect is that when the airbag expands, it can form a negative pressure suction effect on the dust on the outer surfaces of the second sealing door and the first sealing door through the air inlet, thereby removing and cleaning the dust on the second sealing door and the first sealing door, and preventing dust from being contaminated on the pins and sockets.

[0016] Preferably, the air inlet is connected to the airbag via an air inlet passage opened on the female end of the connector, and a filter for filtering dust is provided in the air inlet passage.

[0017] Preferably, the filter comprises a plate body and a filter element, the plate body is slidably inserted in the air inlet duct, and one end extends to the outside of the female end of the connector to form a handle, and the filter element is embedded in the plate body and is at least partially located in the air inlet duct.

[0018] The effect is that the filter element is used to filter the dust carried in the air as it passes through, so that the purified air is sucked into the airbag by negative pressure. The slidable design of the plate body allows it to be pulled out by the handle, which is convenient for cleaning and replacing the filter element. When the plate body slides, different parts of the filter element can alternately enter the air intake duct, extending the service life of the filter element.

[0019] Preferably, the female end of the connector is provided with an air outlet adjacent to the rotation center of the second sealing door and connected to the groove, the air outlet is connected to the airbag, and the air outlet is used to be closed by the second sealing door when it rotates to open the second opening, and to be opened by the second sealing door when it reverses to close the second opening.

[0020] Preferably, the air outlet is provided with an air outlet one-way valve, and the air inlet is provided with an air inlet one-way valve.

[0021] Preferably, an elastic member is connected between the head and tail ends of the airbag, and the elastic member is arranged inside the airbag.

[0022] By adopting the above technical solution, the beneficial effects of the present invention are as follows: The present invention can form a closure for the first opening and the second opening under normal conditions by providing a first sealing door and a second sealing door, thereby preventing external dust from entering the pin module and the jack module, and realizing protection for the pin module and the jack module under normal conditions. The sealed accommodation of the second male end body in the groove can provide a closed environment for the connection position of the pin module and the jack module, thereby effectively preventing external dust from entering the connection position when the pin module and the jack module are plugged in, and avoiding contamination of the pin module and the jack module. It can be seen that in normal conditions and when connected, external dust cannot enter the pin module and the jack module, thereby eradicating and eliminating the presence of dust on the pin module and the jack module, ensuring the excellent and reliable electrical connection and improving the conductive effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall appearance of the grounding electrical connector of the present invention.

[0024] Figure 2 It is a structural schematic diagram of the male end of the connector of the present invention.

[0025] Figure 3 It is an axonometric schematic diagram when the first sealing door of the present invention rotates to open the first opening.

[0026] Figure 4 It is a three-dimensional schematic diagram of the first sealing door part of the present invention.

[0027] Figure 5 It is a three-dimensional schematic diagram of the matching part of the present invention.

[0028] Figure 6 It is a schematic structural diagram of the female end of the connector of the present invention.

[0029] Figure 7 It is a three-dimensional schematic diagram of the filter of the present invention.

[0030] Figure 8 It is an exploded schematic diagram of the female end of the connector of the present invention.

[0031] Reference numerals: 1. Connector male end; 11. First male end body; 111. Cylinder; 112. Fitting piece; 1121. Step surface; 1122. Protrusion; 113. Second return spring; 114. Plug-in; 12. Second male end body; 121. Sealed cavity; 122. First opening; 123. First sealed door; 1231. Door body; 1232. Support block; 1233. Arc spring; 1234. Limiting part; 13. First return spring; 2. Pin module; 21. Pin; 3. Connector female end; 31. Groove; 32. Second opening; 33. Second sealing door; 331. Matching groove; 3311. Cam groove; 332. Hook; 333. Through groove; 34. Air inlet; 341. Air inlet check valve; 35. Air inlet; 36. Slot; 37. Air outlet; 4. Jack module; 41. Jack; 5. airbag; 51. stopper; 52. elastic member; 6. plate body; 61. filter element; 62. handle. DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0033] Combine the following Figures 1 to 8 The grounding electrical connector of the present invention is described.

[0034] like Figure 1 , Figure 2 and Figure 6 As shown, the grounding electrical connector of the present invention comprises a connector male end 1, a pin module 2, a connector female end 3 and a socket module 4.

[0035] Continue to refer Figures 1 to 4 The connector male end 1 includes a first male end body 11 and a second male end body 12. The cross-sections of the first male end body 11 and the second male end body 12 are both circular. An annular sliding cavity is coaxially arranged in the first male end body 11. The second male end body 12 is cylindrical, and one end is closed and the other end is open. The open end of the second male end body 12 slides in the annular sliding cavity, and the open end of the second male end body 12 is connected to the first male end body 11 through a first return spring 13 arranged in the annular sliding cavity.

[0036] The internal space of the second male end body 12 forms a sealed cavity 121, and the pin module 2 extends along the axial direction of the first male end body 11 and is fixed on the first male end body 11, and part of the pin module 2 extends into the sealed cavity 121. Specifically, the pin module 2 includes a plurality of pins 21 evenly distributed along the circumference of the first male end body 11. The closed end of the second male end body 12 is away from the first male end body 11 relative to the open end, and the closed end of the second male end body 12 is provided with first openings 122 that are equal in number and one-to-one corresponding to the pins 21, and the first openings 122 connect the sealed cavity 121 with the outside world. The closed end of the second male end body 12 is also rotatably embedded with a first sealing door 123 for opening and closing the first opening 122, and the first sealing door 123 includes door bodies 1231 that are equal in number and one-to-one corresponding to the first openings 122, and the door bodies 1231 are closed in normal state. The first opening 122 corresponds to the first sealing door 123; a support block 1232 is fixedly provided on one side of the first sealing door 123 facing the inner side of the second male end body 12, and the support block 1232 is connected to the second male end body 12 via an arc spring 1233, and the arc spring 1233 is arranged along the circumference of the second male end body 12, and the arc spring 1233 is used to keep the first sealing door 123 in a closed position under normal conditions to ensure the sealing effect of the first opening 122; at the same time, the arc spring 1233 can also be used for the automatic resetting of the first sealing door 123 after rotation.

[0037] Continue to refer Figure 1 , Figure 6 and Figure 8 The female end 3 of the connector is located on the side of the second male end body 12 away from the first male end body 11, and the end of the female end 3 of the connector facing the second male end body 12 has a groove 31 for accommodating the second male end body 12, and the groove 31 is adapted to the shape of the second male end body 12, so that when the second male end body 12 is inserted into the groove 31, the surrounding groove wall of the groove 31 is sealed and fitted with the surrounding wall of the second male end body 12, so that a relatively closed space is formed between the groove 31 and the second male end body 12, preventing external dust from entering the connection position of the connector male end 1 and the female end 3 of the connector.

[0038] The jack module 4 is arranged along the length direction of the connector female end 3 and buried in the connector female end 3. Specifically, the jack module 4 includes a plurality of jacks 41 evenly distributed along the circumference of the connector female end 3. The plurality of pins 21 can be plugged in and out with the plurality of jacks 41, thereby realizing the electrical connection between the connector male end 1 and the connector female end 3.

[0039] The portion of the connector female end 3 adjacent to the bottom of the groove 31 is provided with second openings 32 equal in number to and corresponding to the jacks 41, and the second openings 32 communicate with the corresponding jacks 41 and the groove 31. The portion of the connector female end 3 adjacent to the bottom of the groove 31 is also rotatably embedded with a second sealing door 33 for opening and closing the second opening 32. The second sealing door 33 has the same structure as the first sealing door 123. The door body 1231 of the second sealing door 33 is used to close the second opening 32 under normal conditions. The second sealing door 33 is also connected to the connector female end 3 through an arc spring 1233, so that it remains in a closed position under normal conditions.

[0040] Continue to refer Figures 2 to 8 A driving mechanism is provided between the second sealing door 33 and the first sealing door 123 , and the driving mechanism is used to control the rotation of the second sealing door 33 and the first sealing door 123 when the second male end body 12 is sealingly inserted into the groove 31 to open the second opening 32 and the first opening 122 .

[0041] The driving mechanism includes a fitting 112, a coaxial cylinder 111 is fixedly provided on the first male end body 11, the connecting end of the fitting 112 is slidably fitted in the cylinder 111 and is connected to the cylinder 111 through a second return spring 113, the sliding direction of the fitting 112 is consistent with the sliding direction of the second male end body 12, the middle part of the fitting 112 is located in the sealing cavity 121 and is stepped along the axial direction of the first male end body 11, and a step surface 1121 is formed at the step, the free end of the fitting 112 passes through the first sealing door 123 and the closed end of the second male end body 12 and protrudes to the side of the second male end body 12 away from the first male end body 11, and the peripheral wall of the free end of the fitting 112 has a convex portion 1122. A matching groove 331 matching with the matching piece 112 is provided at the rotation center of the second sealing door 33. The solid part of the second sealing door 33 used to form the matching groove 331 forms a cylindrical structure and extends a part into the connector female end 3, thereby increasing the groove depth of the matching groove 331. The groove wall of the matching groove 331 is provided with a cam groove 3311, and the cam groove 3311 is skewed.

[0042] After the second male end body 12 is inserted into the bottom of the groove 31, when the connector male end 1 continues to slide toward the connector female end 3, the second male end body 12 will be hindered by the bottom of the groove 31. In other words, the connector female end 3 forms an extrusion effect on the second male end body 12, and the second male end body 12 slides relative to the first male end body 11, and the first return spring 13 is compressed. Then, the first male end body 11 continues to slide toward the connector female end 3, driving the mating piece 112 to insert into the mating groove 331, and the cam groove 3311 is used for the convex part 1122 to slide in at this time. Since the cam groove 3311 is skewed and the sliding direction of the convex part 1122 is the axial direction of the first male end body 11, the convex part 1122 begins to squeeze the groove wall of the cam groove 3311 and forces the second sealing door 33 to rotate through the cam groove 3311.

[0043] A transmission member is provided between the second sealing door 33 and the first sealing door 123, and is used to drive the first sealing door 123 to rotate when the second sealing door 33 rotates. The transmission member includes a hook portion 332 and a limiting portion 1234, wherein the hook portion 332 is formed at the edge of the second sealing door 33, and the limiting portion 1234 is formed at the edge of the first sealing door 123. When the second male end body 12 is inserted into the bottom of the groove 31, the hook portion 332 is inserted into the edge area of ​​the first sealing door 123 and is located beside the limiting portion 1234. Then, when the second sealing door 33 rotates due to the action of the convex portion 1122 and the cam groove 3311, the second sealing door 33 drives the hook portion 332 to rotate, the hook portion 332 hooks the limiting portion 1234 to rotate, and the limiting portion 1234 drives the first sealing door 123 to rotate. Thus, the first sealing door 123 and the second sealing door 33 realize synchronous rotation, and the first opening 122 and the second opening 32 are opened at the same time.

[0044] As the first male end body 11 continues to slide, the closed end of the second male end body 12 and the first sealing door 123 approach the stepped surface 1121 until the first sealing door 123 presses on the stepped surface 1121 of the fitting 112, and at the same time, the convex portion 1122 slides to the end of the stroke in the cam groove 3311. Then, the second sealing door 33 squeezes the fitting 112 through the cam groove 3311 and the convex portion 1122, and the female end 3 of the connector squeezes the stepped surface 1121 through the second male end body 12 and the first sealing door 123. Under the double squeezing action, the fitting 112 slides relative to the first male end body 11 with the second male end body 12, and the second return spring 113 is compressed. The slidable design of the fitting 112 on the first male end body 11 avoids interference with the overall connection operation of the connector male end 1 and the connector female end 3, and achieves the effect of avoidance.

[0045] Afterwards, the first male end body 11 continues to slide toward the female end 3 of the connector, and the pin 21 extends out from the corresponding first opening 122 and is inserted into the corresponding socket 41 from the second opening 32, thereby achieving the purpose of electrical connection. It can be seen that in this embodiment, the rotation of the first sealing door 123 and the second sealing door 33, and the insertion of the pin 21 into the socket 41 are all completed after the second male end body 12 is matched with the groove 31, so that a closed environment can be formed at the connection position during electrical connection, effectively preventing external dust from entering the connection position, and avoiding contamination of the pin 21 and the socket 41; and in normal conditions, the pin 21 is closed by the first sealing door 123, and the socket 41 is closed by the second sealing door 33, isolating the connection with the outside world, so that external dust cannot enter the pin 21 and the socket 41, thereby eradicating and eliminating the existence of dust on the pin 21 and the socket 41, ensuring the excellent and reliable electrical connection and improving the conductive effect.

[0046] It should be noted that the sliding of the first male end body 11 and the second male end body 12 are relative. When the first male end body 11 slides toward the female end 3 of the connector, the sliding of the second male end body 12 is blocked, so the first male end body 11 continues to slide relative to the female end 3 of the connector, while the second male end body 12 is stationary relative to the female end 3 of the connector, and is in a sliding state relative to the first male end body 11. During on-site operation, the female end 3 of the connector can be kept stationary, and the male end 1 of the connector can be slid toward the female end 3 of the connector to achieve plugging; the male end 1 of the connector can also be kept stationary, and the female end 3 of the connector can be slid toward the male end 1 of the connector to achieve plugging; of course, the male end 1 of the connector and the female end 3 of the connector can also be slid toward each other to complete the plugging action.

[0047] During the process of separating the connector male end 1 and the connector female end 3, the outer surfaces of the first sealing door 123 and the second sealing door 33, i.e., the surfaces facing the outside, are exposed to the air and inevitably contaminated with dust. During the process of electrically connecting the pin 21 and the socket 41, although the cooperation of the groove 31 and the second male end body 12 can prevent the entry of external dust, the dust on the outer surfaces of the first sealing door 123 and the second sealing door 33 is inside the closed space and may fall and adhere to the pin 21 to affect the connection effect.

[0048] To this end, continue to refer to Figure 1 , Figure 6 and Figure 8 The outer side of the connector female end 3 is provided with an airbag 5 capable of expansion and contraction. The airbag 5 is annular and sleeved on the connector female end 3. The head end of the airbag 5 is fixed on the connector female end 3. The connector female end 3 is provided with an air inlet 34 aligned with the outer surface of the second sealing door 33. The air inlet 34 is adjacent to the edge of the second sealing door 33 and radially faces the center of the second sealing door 33. The air inlet 34 is connected with the head end of the airbag 5 through an air inlet 35 opened on the connector female end 3. The number of the air inlets 34 is multiple and distributed at intervals along the circumference of the second sealing door 33. The end of the connector female end 3 forming the groove 31 is provided with a slot 36. The airbag 5 is provided with a notch portion communicating with the slot 36. It is worth noting that the notch portion makes the appearance of the airbag 5 appear to be notch-shaped, but the internal space of the airbag 5 is still in a closed state and is not connected to the external environment. The tail end of the airbag 5 forms a stopper 51 in the notch portion, and the first male end body 11 is fixedly provided with a plug-in 114 matching the slot 36 . The plug-in 114 extends axially along the first male end body 11 and one end protrudes from the side of the second male end body 12 away from the first male end body 11 .

[0049] When the second male end body 12 is sealed and inserted into the groove 31, the plug-in 114 can be inserted into the slot 36 and extend into the notch. As the first male end body 11 continues to slide toward the female end 3 of the connector, the plug-in 114 can push the stopper 51 to expand the airbag 5. When the airbag 5 expands, negative pressure is formed inside, and the dust on the outer surface of the second sealing door 33 is sucked away through the air inlet 34. Since the second male end body 12 has been inserted into the groove 31 at this time, the first sealing door 123 is closer to the second sealing door 33. Under the action of the negative pressure suction, the dust on the outer surface of the first sealing door 123 can also be sucked away and begin to enter the airbag 5. During the subsequent rotation of the first sealing door 123 and the second sealing door 33 and the insertion of the pin 21 into the socket 41, since the sliding of the first male end body 11 has not stopped, the plug-in 114 has been pushing the airbag 5 to expand, so that the airbag 5 can maintain the adsorption effect on the first sealing door 123 and the second sealing door 33 for a longer time, thereby extending the dust removal time and ensuring the dust removal effect.

[0050] It should be noted that an air intake check valve 341 is provided in the air intake port 34 for one-way air intake into the airbag 5 to prevent air backflow from affecting the dust removal effect.

[0051] Continue to refer Figure 6 and Figure 7 , a filter for filtering dust is provided in the air inlet 35. The filter comprises a plate body 6 and a filter element 61. The plate body 6 is inserted and slidably installed in the air inlet 35 along the radial direction of the connector female end 3, and the plate surface of the plate body 6 is perpendicular to the flow direction of the air in the air inlet 35. One end of the plate body 6 penetrates the connector female end 3 and extends to the outside of the connector female end 3, and the end forms a handle 62 for the operator to operate; the filter element 61 is embedded in the plate body 6, and a part of it is located in the air inlet 35, and the other part is located at the side of the air inlet 35. The filter element 61 is used to filter the dust carried in the air when the air passes through, so that the purified air is sucked into the airbag 5 by negative pressure. After the filter element 61 is used for a period of time, the filtering effect of the part located in the air inlet 35 is reduced. At this time, the operator can operate the handle 62 to slide the plate body 6, and the plate body 6 allows the other part of the filter element 61 to enter the air inlet 35, and use this part to filter the dust. The replacement of the two parts of the filter element 61 prolongs the service life of the filter element 61. When the filtering function of the filter element 61 is gradually lost, the plate body 6 can be slid out of the air inlet 35, and the filter element 61 on the plate body 6 can be cleaned or replaced. The slidable design of the plate body 6 facilitates the disassembly and assembly of the filter.

[0052] It is worth noting that the plate body 6 can be a rubber plate with a certain flexibility, or a hard lining plate inside and a rubber layer outside, so that the opening area of ​​the plate body 6 on the female end 3 of the connector can be sealed by rubber to prevent the air in the air inlet 35 from leaking out. The filter element 61 can be a fine filter mesh or filter cloth to filter dust.

[0053] Continue to refer Figure 6 and Figure 8 The female end 3 of the connector is provided with an air outlet 37 adjacent to the rotation center of the second sealing door 33 and connected to the groove 31. It should be noted that when the second sealing door 33 closes the second opening 32, the opening position of the air outlet 37 overlaps with the position of the second sealing door 33. The second sealing door 33 is provided with a through groove 333, which is used to connect the air outlet 37 and the groove 31 to ensure normal air discharge. There are multiple air outlets 37 and they are evenly distributed around the rotation center of the second sealing door 33. The air outlet 37 is connected to the head end of the airbag 5 through the air outlet channel provided on the female end 3 of the connector. An air outlet check valve (not shown in the figure) is provided in the air outlet 37. The air outlet check valve is used to discharge the air in the airbag 5 in one direction to prevent backflow.

[0054] When the second sealing door 33 rotates to open the second opening 32, the second sealing door 33 closes the air outlet 37, thereby preventing the air sucked by the negative pressure in the airbag 5 from flowing out. When the connector male end 1 is disconnected from the connector female end 3, the operator can control the first male end body 11 to move away from the connector female end 3, and the movement sequence of each component is opposite to that during insertion, that is, the pin 21 is pulled out of the insertion hole 41 - the second sealing door 33 and the first sealing door 123 are reversed because the protrusion 1122 withdraws from the cam groove 3311 - the second male end body 12 is withdrawn from the groove 31.

[0055] When the second sealing door 33 and the first sealing door 123 are reversed and reset, although the second male end body 12 is still in the groove 31, the first male end body 11 moves so that the distance between it and the second male end body 12 becomes slightly farther, and the elastic force of the first reset spring 13 acting on the second male end body 12 is reduced. At the same time, since the movement of the first male end body 11 is controlled manually, in other words, the connection between the connector male end 1 and the connector female end 3 is disconnected manually, the force applied during the extraction process is not completely uniform and stable. At this time, the second male end body 12 may be skewed, and a gap between it and the groove 31 is exposed to expose the connection position. When the second sealing door 33 is reversed and closed, the through groove 333 and the air outlet 37 are gradually aligned. Since the movement of the first male end body 11 will drive the plug-in 114 to move, the plug-in 114 will be out of contact with the stopper 51 early. At this stage, the airbag 5 cannot be deflated because the air outlet 37 has not yet been opened. When the through groove 333 is aligned with the air outlet 37, the air outlet 37 is opened, and the air in the airbag 5 will be ejected outward through the air outlet 37 and the air outlet one-way valve, and then ejected to the outside through the gap formed by the tilt of the second male end body 12. The airflow toward the outside can prevent external dust from penetrating into the connection position through the above-mentioned gap, effectively protecting the pin 21 and the socket 41 and preventing both from being contaminated by external dust.

[0056] It should be noted that an elastic member 52 is connected between the head and tail ends of the airbag 5 . The elastic member 52 is arranged inside the airbag 5 . The elastic member 52 may be a tension spring, and the number of the elastic member 52 may be a plurality arranged around the center of the airbag 5 .

[0057] When the air outlet 37 is opened, the airbag 5 can deflate outwards by its own contraction elastic force. The provision of the elastic member 52 can further promote the contraction of the airbag 5, increase the deflation speed of the airbag 5, and assist the airbag 5 to return to its original position.

[0058] In other embodiments, the driving mechanism may be a micro motor disposed on the female end 3 and the second male end body 12 of the connector, and the two micro motors respectively control the rotation of the second sealing door 33 and the first sealing door 123, thereby realizing the opening and closing of the second opening 32 and the first opening 122. Compared with the implementation of the cam groove 3311 and the convex portion 1122 in this embodiment, it is necessary to increase the disassembly and maintenance procedures of the micro motor to ensure the long-term operation of the micro motor.

[0059] In other embodiments, there may be two hooks 332. When the first sealing door 123 and the second sealing door 33 are close to each other, the two hooks 332 may clamp the limiting portion 1234 in the middle. When the second sealing door 33 rotates, one of the hooks 332 pushes the first sealing door 123 to rotate. When the second sealing door 33 reverses, the other hook 332 pushes the first sealing door 123 to reverse.

[0060] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0062] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A grounding electrical connector, comprising a male connector and a female connector, wherein the male connector is provided with a pin module, and the female connector is provided with a socket module for plugging and unplugging the pin module, characterized in that: The male end of the connector comprises a first male end body and a second male end body, the second male end body is elastically slidably connected to the first male end body, a sealed cavity is provided in the second male end body, the plug-in pin module is fixedly mounted on the first male end body and at least partially placed in the sealed cavity; the end of the second male end body away from the first male end body is provided with a first opening corresponding to the plug-in pin module and connected to the sealed cavity, and the end is also rotatably embedded with a first sealed door for opening and closing the first opening; One end of the female end of the connector has a groove for sealingly accommodating the second male end body, and the part of the female end of the connector adjacent to the groove is provided with a second opening corresponding to the jack module and connecting the jack module and the groove, and the part is also rotatably embedded with a second sealing door for opening and closing the second opening, and a driving mechanism is provided between the second sealing door and the first sealing door, and the driving mechanism is used to control the rotation of the second sealing door and the first sealing door when the second male end body is sealingly inserted into the groove, so as to open the second opening and the first opening.

2. The grounding electrical connector according to claim 1, characterized in that: The driving mechanism includes a mating piece, which is arranged on the first male end body and has a free end extending through a side of the second male end body away from the first male end body. The peripheral wall of the mating piece has a convex portion. A mating groove matching the mating piece is provided at the rotation center of the second sealing door. A cam groove is provided on the groove wall of the mating groove. The cam groove is used for the convex portion to slide into when the female end of the connector squeezes the second male end body to slide. A transmission piece is provided between the second sealing door and the first sealing door, which is used to drive the first sealing door to rotate when the second sealing door rotates.

3. The grounding electrical connector according to claim 2, characterized in that: The transmission member includes a hook portion formed on the second sealing door and a limiting portion formed on the first sealing door. When the second sealing door rotates due to the sliding of the convex portion in the cam groove, the hook portion can hook the limiting portion to rotate the first sealing door.

4. The grounding electrical connector according to claim 2, characterized in that: The connecting end of the mating piece is elastically slidably connected to the first male end body, and the sliding direction is consistent with the sliding direction of the second male end body. When the protrusion slides to the end of the stroke in the cam groove, the second sealing door squeezes the mating piece to make it slide with the second male end body.

5. The grounding electrical connector according to claim 1, characterized in that: An airbag capable of expansion and contraction is provided on the outer side of the female end of the connector, and a plurality of air inlets are provided on the female end of the connector aligned with the outer surface of the second sealing door, and the air inlets are communicated with the airbag; a slot is provided at the end of the female end of the connector constituting the groove, and the airbag is provided with a notch portion communicated with the slot, and a stopper is formed at the tail end of the airbag in the notch portion, and a plug-in matching the slot is provided on the first male end body, and when the second male end body is sealingly inserted into the groove, the plug-in can be inserted into the slot and extend into the notch portion, pushing the stopper to expand the airbag.

6. The grounding electrical connector according to claim 5, characterized in that: The air inlet is communicated with the air bag through an air inlet passage opened on the female end of the connector, and a filter for filtering dust is arranged in the air inlet passage.

7. The grounding electrical connector according to claim 6, characterized in that: The filter includes a plate body and a filter element. The plate body is slidably inserted in the air inlet duct, and one end extends to the outside of the female end of the connector to form a handle. The filter element is embedded in the plate body and is at least partially located in the air inlet duct.

8. The grounding electrical connector according to claim 5, characterized in that: The female end of the connector is provided with an air outlet adjacent to the rotation center of the second sealing door and connected to the groove, the air outlet is connected to the airbag, and the air outlet is used to be closed by the second sealing door when it rotates to open the second opening, and to be opened by the second sealing door when it reverses to close the second opening.

9. The grounding electrical connector according to claim 8, characterized in that: The air outlet is provided with an air outlet one-way valve, and the air inlet is provided with an air inlet one-way valve.

10. The grounding electrical connector according to any one of claims 5 to 9, characterized in that: An elastic member is connected between the head and tail ends of the airbag, and the elastic member is arranged inside the airbag.

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