Electrical connector with dust cover
By designing a dustproof mechanism on the electrical connector, and utilizing an inflatable sealing ring and an air distribution mechanism to achieve convenient disassembly and sealing, the problems of inconvenient disassembly and poor sealing performance of existing electrical connectors are solved, thereby improving the dustproof effect and stability of the equipment.
Patent Information
- Application Number
- CN202521758004.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-18
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-18
AI Technical Summary
Existing electrical connectors with dust covers are inconvenient to install and remove and have poor sealing performance. They are prone to dust and moisture entering due to wear or deformation, which affects the stability and service life of the equipment.
The dustproof mechanism includes a connecting frame, a dust cover, and an inflatable sealing ring, which are fixed by a flexible connecting strap. The inflatable sealing ring expands to seal the interface gaps, and the sealing effect is achieved through an air distribution mechanism. Combined with bolts and buckles, it is easy to assemble and disassemble.
It enables convenient disassembly and effective sealing of the dust cover, improves the dustproof effect of the electrical connector, prevents dust and moisture from entering, and extends the service life of the equipment.
Smart Images

Figure CN224683471U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical connectors, and more particularly to an electrical connector with a dust cover. Background Technology
[0002] Electrical connectors, as fundamental electronic components, are widely used in various electronic devices to achieve reliable connections between circuits. In complex operating environments, dust, impurities, or liquids may enter the connector interface, leading to problems such as poor contact, short circuits, or corrosion, affecting the stability and lifespan of the equipment. Therefore, many electrical connectors are equipped with dust covers to protect the interface when not in use.
[0003] However, existing electrical connectors with dust covers typically use simple snap-fit or friction-fit methods to fix the dust covers, requiring significant external force during installation and removal, which can easily lead to deformation or even damage. Furthermore, the sealing performance of existing dust covers often relies on a tight fit between the cover and the connector; however, due to manufacturing tolerances or wear caused by long-term use, gaps can easily form between the dust cover and the connector, failing to effectively prevent dust, moisture, and other contaminants from entering, thus affecting the reliability of the electrical connector. Therefore, this solution proposes an electrical connector with a dust cover. Utility Model Content
[0004] The present invention proposes an electrical connector with a dust cover, which solves the problems of inconvenient disassembly and assembly and poor sealing effect of the dust cover in the prior art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An electrical connector with a dust cover includes a connector body, one end of which has an interface, and a mounting plate is sleeved on the outer periphery of the end of the connector body with the interface. A dustproof mechanism for sealing the interface is detachably installed on the mounting plate.
[0007] The dustproof mechanism includes a connecting frame sleeved on the outer periphery of the connector body, a dustproof cover for sealing the interface, and a fixing frame fixed to the back of the dustproof cover and inserted into the interface. The dustproof cover is connected to one outer wall of the connecting frame by a flexible connecting strip, and the connecting frame is detachably fixed to the mounting plate.
[0008] The fixed frame has a fixing groove around its outer periphery, and an inflatable sealing ring is installed in the fixing groove. The dust cover has an air distribution mechanism for inflating and deflating the inflatable sealing ring.
[0009] The above technical solution not only facilitates the disassembly and assembly of the dust cover, but also utilizes the inflation and expansion of the inflatable sealing ring to seal the gap between the connecting frame and the inner wall of the interface, thereby effectively improving the sealing effect of the dust cover.
[0010] As a further improvement to the above solution, the mounting plate has fixing holes 1 on both sides of its front side, and the connecting frame has fixing holes 2 on both sides of its front side, which are corresponding to the fixing holes 1. The fixing holes 1 and the corresponding fixing holes 2 are connected by bolts.
[0011] As a further improvement to the above solution, a protruding plate is fixed on one side of the dust cover, and multiple anti-slip stripes are provided on both the front and back sides of the protruding plate.
[0012] As a further improvement to the above solution, the dust cover has an installation groove on its front side. The air distribution mechanism includes an airbag located in the installation groove, a pressure plate rotatably connected in the installation groove for sealing the installation groove while the airbag is pressed, and a snap-fit assembly installed in the installation groove for snapping the pressure plate. The airbag and the inflatable sealing ring are connected by a connecting pipe. When the pressure plate is closed, the air in the airbag is forced into the inflatable sealing ring to expand it and seal the gap between the outer periphery of the connecting frame and the inner wall of the interface.
[0013] As a further improvement to the above solution, the end of the pressure plate away from the rotatable connection with the mounting groove is provided with a locking hole. The locking assembly includes a locking block that is installed on the inner wall of the mounting groove by an elastic element and engages with the locking hole, and an adjusting element for adjusting the movement of the locking block. The end of the locking block pointing towards the pressure plate is a right-angled triangular structure with the inclined surface facing upward. The side of the mounting groove away from the rotatable connection point with the pressure plate is provided with a storage hole for storing the locking block. One end of the locking block extends into the storage hole and is fixed with a spring. One end of the spring is fixedly connected to the inner wall of one side of the storage hole.
[0014] As a further improvement to the above solution, the front of the dust cover is provided with a connecting groove that communicates with the storage hole. The adjusting component includes an adjusting column movably disposed in the connecting groove and an adjusting plate fixed on the top of the adjusting column. The adjusting plate is located on the top surface of the dust cover, and the bottom of the adjusting column is fixedly connected to the locking block.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] 1. By using the dust cover, connecting frame, and mounting plate, the dustproof mechanism can be easily installed by fitting the connecting frame onto the connector body and then fixing it to the mounting plate. After separating the connecting frame from the mounting plate, the dustproof mechanism can be easily removed from the connector body, thus facilitating the disassembly and assembly of the entire dustproof mechanism.
[0017] 2. By using an inflatable sealing ring and an air distribution mechanism, after the dust cover is placed over the outside of the interface and the fixing frame is inserted into the interface, the air distribution mechanism inflates the inflatable sealing ring, causing it to expand and press against the outer wall of the interface. This seals the gap between the fixing frame and the interface, achieving a good sealing and dustproof effect. It also prevents the fixing frame from easily coming out of the interface, ensuring that the dust cover does not easily loosen. Conversely, opening the pressure plate allows the air inside the inflatable sealing ring to automatically flow back into the airbag, after which the dust cover can be easily opened. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a structural diagram of the connection port and mounting plate;
[0020] Figure 3 This is a structural diagram of the dust cover and connecting frame;
[0021] Figure 4 This is a cross-sectional view of the dust cover.
[0022] Explanation of key symbols:
[0023] 1. Connector body; 2. Mounting plate; 3. Fixing hole one; 4. Interface; 5. Connecting frame; 6. Fixing hole two; 7. Dust cover; 8. Protruding plate; 9. Fixing frame; 10. Inflatable sealing ring; 11. Connecting strap; 12. Airbag; 13. Pressure plate; 14. Locking hole; 15. Adjusting post; 16. Adjusting plate; 17. Connecting groove; 18. Storage hole; 19. Locking block; 20. Fixing groove; 21. Mounting groove. Detailed Implementation
[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0025] Example 1:
[0026] Please combine Figure 1 - Figure 4 This embodiment of an electrical connector with a dust cover includes a connector body 1. One end of the connector body 1 has an interface 4. A mounting plate 2 is sleeved on the outer periphery of the end of the connector body 1 with the interface 4. Fixing holes 3 are provided on both sides of the front of the mounting plate 2. A dustproof mechanism for sealing the interface 4 is detachably installed on the mounting plate 2. The dustproof mechanism seals the interface 4, thereby preventing dust from entering the interior of the connector body 1.
[0027] The dustproof mechanism includes a connecting frame 5 fitted around the outer periphery of the connector body 1, a dust cover 7 for sealing the interface 4, and a fixing frame 9 fixed to the back of the dust cover 7 and inserted into the interface 4. The dust cover 7 is connected to one outer wall of the connecting frame 5 by a flexible connecting strip 11. The connecting frame 5 is detachably fixed to the mounting plate 2. Fixing holes 6, corresponding to fixing holes 1 and 2, are provided on both sides of the front of the connecting frame 5. The fixing holes 1 and 2 are connected by bolts. When installing the dustproof mechanism, the connecting frame 5 is fitted onto the connector body 1. The connector body 1 is attached to the outer periphery, and the connecting frame 5 abuts against the mounting plate 2. Then, bolts are passed through the two opposite fixing holes 1 and 3 fixing holes 6, and then the bolts are tightened to fix the connecting frame 5 on the mounting plate 2, thus completing the installation of the dustproof mechanism. When sealing the interface 4, simply insert the connecting frame 5 into the interface 4 and cover the outside of the interface 4 to seal the interface 4, thereby effectively preventing dust from entering the interface 4. When opening the dust cover 7, simply pull the connecting frame 5 out of the interface 4.
[0028] In this embodiment, a protruding convex plate 8 is fixed on one side of the dust cover 7. Both sides of the convex plate 8 are provided with multiple anti-slip stripes. The convex plate 8 is designed so that one end protrudes outside the dust cover 7, which makes it convenient to apply force to the dust cover 7 with fingers when opening the dust cover 7 from the interface 4, thereby pulling the connecting frame 5 out of the interface 4.
[0029] Example 2:
[0030] Combination Figure 3 and Figure 4This embodiment, based on embodiment 1, further improves upon the following: A fixing groove 20 is provided around the outer periphery of the fixing frame 9, and an inflatable sealing ring 10 is installed within the fixing groove 20. An air distribution mechanism for inflating and deflating the inflatable sealing ring 10 is installed on the front of the dust cover 7. An installation groove 21 is provided on the front of the dust cover 7. The air distribution mechanism includes an airbag 12 disposed within the installation groove 21, a pressure plate 13 rotatably connected within the installation groove 21 for sealing the installation groove 21 while pressing the airbag 12, and a snap-fit assembly installed within the installation groove 21 for engaging the pressure plate 13. The airbag 12 and the inflatable sealing ring 10 are connected via a connecting pipe. When the pressure plate 13 closes, it forces the air from the airbag 12 into the inflatable sealing ring 10. Its expansion seals the gap between the outer periphery of the connecting frame 5 and the inner wall of the interface 4. After the connecting frame 5 is fully inserted into the interface 4, the pressure plate 13 is pressed into the fixing groove 20. When the pressure plate 13 is closed, it presses the airbag 12, thereby forcing the air in the airbag 12 into the inflatable sealing ring 10. The inflatable sealing ring 10 expands and presses against the inner wall of the interface 4, thus not only sealing the interface 4, but also effectively preventing the connecting frame 5 from easily exiting the interface 4. When it is necessary to open the dust cover 7, the pressure plate 13 is opened first. Without the pressure of the pressure plate 13, the air in the inflatable sealing ring 10 flows back into the airbag 12, and then no longer presses against the inner wall of the interface 4, so the connecting frame 5 can be easily pulled out of the interface 4.
[0031] In this embodiment, a locking hole 14 is provided at the end of the pressure plate 13 away from the rotatable connection with the mounting groove 21. The locking assembly includes a locking block 19 that is installed on the inner wall of the mounting groove 21 by an elastic member and engages with the locking hole 14, and an adjusting member for adjusting the movement of the locking block 19. The end of the locking block 19 pointing towards the pressure plate 13 is a right-angled triangular structure with the inclined surface facing upward. A receiving hole 18 for receiving the locking block 19 is provided on the side of the mounting groove 21 away from the rotatable connection point with the pressure plate 13. One end of the locking block 19 extends into the receiving hole 18 and is fixed. A spring is fixedly installed, with one end of the spring being fixed to the inner wall of one side of the receiving hole 18. When the pressure plate 13 is closed inside the mounting groove 21, the locking block 19 is used to lock the pressure plate 13 in the locking hole 14, thereby achieving the purpose of fixing the pressure plate 13. One end of the locking block 19 is a right-angled triangular mechanism, which facilitates the automatic pressing of the locking block 19 into the receiving hole 18 when the pressure plate 13 is closed. After the locking block 19 is aligned with the locking hole 14, it is then locked into the locking hole 14 under the action of the spring, thereby achieving the purpose of automatically locking the pressure plate 13.
[0032] In this embodiment, the front of the dust cover 7 is provided with a connecting groove 17 that communicates with the storage hole 18. The adjusting component includes an adjusting column 15 movably disposed in the connecting groove 17 and an adjusting plate 16 fixed on the top of the adjusting column 15. The adjusting plate 16 is located on the top surface of the dust cover 7, and the top surface of the adjusting plate 16 is provided with protective texture. The bottom of the adjusting column 15 is fixedly connected to the locking block 19. When it is necessary to open the pressure plate 13, the adjusting plate 16 is pushed away from the pressure plate 13, thereby driving the locking block 19 out of the locking hole 14 and into the storage hole 18. After the pressure plate 13 is no longer restricted by the locking block 19, it can be opened, so that the air in the inflatable sealing ring 10 can flow back into the airbag 12. Finally, the connecting frame 5 can be pulled out from the interface 4, thereby opening the dust cover 7.
[0033] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.
Claims
1. An electrical connector with a dust cover, comprising a connector body, one end of which has an interface, characterized in that, The connector body has an interface at one end, and a mounting plate is sleeved on the outer periphery of the interface. A dustproof mechanism for sealing the interface is detachably installed on the mounting plate. The dustproof mechanism includes a connecting frame sleeved on the outer periphery of the connector body, a dustproof cover for sealing the interface, and a fixing frame fixed to the back of the dustproof cover and inserted into the interface. The dustproof cover is connected to one outer wall of the connecting frame by a flexible connecting strip, and the connecting frame is detachably fixed to the mounting plate. The fixed frame has a fixing groove around its outer periphery, and an inflatable sealing ring is installed in the fixing groove. The dust cover has an air distribution mechanism for inflating and deflating the inflatable sealing ring.
2. The electrical connector with a dust cover according to claim 1, characterized in that, The mounting plate has fixing holes 1 on both sides of its front side, and the connecting frame has fixing holes 2 on both sides of its front side, which are corresponding to the fixing holes 1. The fixing holes 1 and the corresponding fixing holes 2 are connected by bolts.
3. The electrical connector with a dust cover according to claim 1, characterized in that, One side of the dust cover is fixed with a protruding plate, and both sides of the plate are provided with multiple anti-slip stripes.
4. An electrical connector with a dust cover according to claim 1, characterized in that, The dust cover has an installation groove on its front side. The air distribution mechanism includes an airbag located in the installation groove, a pressure plate rotatably connected in the installation groove for sealing the installation groove while the airbag is pressed, and a snap-fit assembly installed in the installation groove for snapping the pressure plate. The airbag and the inflatable sealing ring are connected by a connecting pipe. When the pressure plate is closed, the air in the airbag is forced into the inflatable sealing ring to expand it and seal the gap between the outer periphery of the connecting frame and the inner wall of the interface.
5. An electrical connector with a dust cover according to claim 4, characterized in that, The pressure plate has a locking hole at the end away from the rotatable connection with the mounting slot. The locking assembly includes a locking block that is installed on the inner wall of the mounting slot by an elastic element and engages with the locking hole, and an adjusting element for adjusting the movement of the locking block. The end of the locking block pointing towards the pressure plate is a right-angled triangular structure with the inclined surface facing upward. The mounting slot has a storage hole for storing the locking block on the side away from the rotatable connection point with the pressure plate. One end of the locking block extends into the storage hole and is fixed with a spring. One end of the spring is fixed to the inner wall of one side of the storage hole.
6. An electrical connector with a dust cover according to claim 5, characterized in that, The dust cover has a connecting groove on its front side that communicates with the storage hole. The adjusting component includes an adjusting column that is movably disposed in the connecting groove and an adjusting plate that is fixed on the top of the adjusting column. The adjusting plate is located on the top surface of the dust cover, and the bottom of the adjusting column is fixedly connected to the locking block.