Moisture-resistant circuit connector

Abstract

The invention relates to the technical field of circuit connectors, and discloses a moisture-resistant circuit connector which comprises a plug and a socket, the outer wall of the plug is connected with a first shell, the outer wall of the socket is connected with a second shell, and the second shell can be inserted into the inner wall of the first shell to achieve butt joint of the plug and the socket; a sealing assembly is arranged in the first shell and comprises a liquid bag filled with filling liquid and two liquid boxes. And a protection assembly is arranged in the first shell. Through the arrangement of the protection assembly, the liquid box can convey the filling liquid into the liquid bag when the plug is in butt joint with the socket, the liquid bag can fill the gap between the first shell and the second shell after expansion, a good flexible sealing effect is further achieved, and in the subsequent operation process of the plug and the socket, moisture cannot enter the first shell, so that the safety of the plug and the socket is improved. Therefore, a good moisture-proof effect is achieved.

Description

Technical Field

[0001] This invention relates to the field of circuit connector technology, and more specifically to a moisture-resistant circuit connector. Background Technology

[0002] As a core connector in an electrical system, a circuit connector mainly consists of two parts: a plug and a socket. The plug typically has conductive pins, while the socket has corresponding holes for the pins. The two are mechanically connected and electrically conductive through plugging and unplugging, creating a detachable current transmission channel for the circuit and meeting the needs of modular assembly and maintenance of equipment.

[0003] Chinese patent CN220138734U discloses "a circuit board connector," comprising a body, with fixing plates fixedly connected to both the left and right sides of the front of the body. Each fixing plate has insertion holes. Telescopic guide rods are located at the four corners of the front of the body, and a set of mating frames is fixedly connected to one end of each telescopic guide rod. A mating block is fixedly connected to both the left and right sides of each mating frame, and a plug is fixedly connected to the back surface of each mating block. This patent, through the mating frame structure at the front of the body, allows the connector to be quickly inserted into a circuit board. By having the mating frame contact the outer surface of the component, and then inserting the connector into it, the fastening plate on the fastener plate is immediately secured to the outside and fixed at the fixing holes. This allows for rapid insertion and avoids the problem of repeated insertion and removal due to inaccurate alignment.

[0004] However, the existing technology has the following problems: When existing circuit board connectors are used in humid conditions, moisture in the air can easily enter the contact elements through the gaps in the connection mechanism. After prolonged use, this can easily cause corrosion and oxidation of the contact elements, shortening the lifespan of the connector. Furthermore, the failure rate of the connector will increase as the humidity level increases. Summary of the Invention

[0005] The purpose of this invention is to provide a moisture-resistant circuit connector to solve the above-mentioned problems. It aims to overcome the shortcomings of existing circuit board connectors, which are prone to corrosion and oxidation of the contact elements by moisture in the air when used in humid conditions, thus increasing the failure rate of the connector. Details are described below.

[0006] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a moisture-resistant circuit connector, comprising a plug and a socket. A first housing is connected to the outer wall of the plug, and a second housing is connected to the outer wall of the socket. The second housing can be inserted into the inner wall of the first housing to achieve mating between the plug and the socket. A sealing assembly is provided within the first housing, comprising a liquid bladder filled with a filling fluid and two liquid containers. When the plug and socket are mated, the liquid containers can deliver the filling fluid into the liquid bladder. After the liquid bladder expands upon entering the liquid, it seals the connection between the first and second housings. A protective assembly is provided within the first housing to protect the plug after it is separated from the socket.

[0007] Preferably, the inner wall of the first housing has an annular groove, the liquid bladder is installed in the annular groove, the front and rear sides of the first housing have square grooves, the two liquid boxes are installed in the two square grooves respectively, the inner wall of the liquid box is slidably connected to a stopper plate, the front and rear sides of the second housing are slidably connected to two wedges respectively, the two wedges can be embedded into the two liquid boxes respectively after the second housing is inserted into the first housing, the liquid box and the liquid bladder are connected by a liquid tube, the wedges can squeeze the stopper plate after being embedded in the liquid box.

[0008] Preferably, a spring is provided between the wedge and the second housing, and the end of the wedge near the first housing is provided with an angle.

[0009] Preferably, a light rod is slidably connected to the end of the liquid box away from the stopper plate, the light rod is connected to the stopper plate, and a frustum is provided at the end of the light rod away from the stopper plate.

[0010] Preferably, the outer wall of the liquid box is connected to a rubber sleeve, the rubber sleeve being made of a flexible material, and the frustum being located inside the rubber sleeve.

[0011] Preferably, the protective assembly includes two first protective plates, which are mirror-hinged within the first housing. A leaf spring connects the first protective plates to the inner wall of the first housing. The two first protective plates are in a closed state. When the second housing is inserted into the first housing, it can push the two first protective plates apart, so that the two first protective plates respectively fit against the upper inner wall and the lower inner wall of the first housing.

[0012] Preferably, the protective assembly further includes two second protective plates, each with a row of slots. The plug has two rows of pins that can be inserted into the slots of the two second protective plates respectively. A linkage mechanism is provided between the two first protective plates and the two second protective plates. When the first protective plate swings toward the inner wall of the first housing, the linkage mechanism drives the second protective plate to swing toward the inner wall of the first housing.

[0013] Preferably, the linkage mechanism includes a first connecting rod, a slider, and a second connecting rod. The slider is horizontally slidably connected to the inner wall of the first housing. The first connecting rod is hinged between the slider and the first guard plate, and the second connecting rod is hinged between the slider and the second guard plate.

[0014] Preferably, a row of mounting slots is provided on the second protective plate, and a row of pads is hinged in the row of mounting slots. The row of pads can be respectively embedded in the gaps between the row of pins. A spring is provided between the pads and the mounting slots. The pads are divided into two parts that can elastically extend and retract. When the pads are squeezed by the second housing, they can be embedded in the mounting slots.

[0015] The beneficial effects are: 1. This moisture-resistant circuit connector, through the setting of protective components, enables the liquid box to deliver filling liquid to the liquid bladder when the plug and socket are connected. After the liquid bladder expands, it can fill the gap between the first shell and the second shell, thereby achieving a good flexible sealing effect. This prevents moisture from entering the first shell during subsequent operation, thus achieving a good moisture-proof effect, ensuring the operational stability of the plug and socket, and extending its service life.

[0016] 2. This moisture-resistant circuit connector, through the setting of protective components, ensures that when the first housing and the second housing are separated, the two first protective plates contact each other and form a protective structure, preventing the plug from being exposed to the air, and also preventing moisture and dust from entering the interior of the first housing and contacting the plug, effectively reducing the rate of plug oxidation and corrosion. In addition, the two second protective plates are distributed in a V-shape, and the two rows of pins are respectively embedded in the slots of the two second protective plates. The ends of the pins are embedded in the slots, and the slots provide a wrap-around protection for the ends of the pins, further improving the protection level of the plug, reducing the contact area between the pins and the air, and providing a certain degree of support and protection. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the first housing structure of the present invention; Figure 3 This is a schematic diagram of the sealing assembly structure of the present invention; Figure 4 This is a schematic diagram of the liquid box structure of the present invention; Figure 5 This is a schematic diagram of the protective component structure of the present invention; Figure 6 This is a schematic diagram of the first protective plate structure of the present invention; Figure 7 This is a schematic diagram of the second protective plate structure of the present invention; Figure 8 This is a schematic diagram of the slider structure of the present invention; Figure 9 This is a schematic diagram of the pad structure of the present invention; Figure 10 This is a schematic diagram of the plug and socket connection of the present invention.

[0019] The annotations in the attached figures are explained as follows: 1. First housing; 2. Plug; 3. Second housing; 4. Socket; 5. Sealing assembly; 51. Liquid bladder; 52. Liquid tube; 53. Liquid box; 54. Plug plate; 55. Polished rod; 56. Rubber sleeve; 57. Wedge block; 6. Protective components; 61. First protective plate; 62. Leaf spring; 63. Second protective plate; 64. First connecting rod; 65. Slider; 66. Second connecting rod; 67. Pad block. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0021] One embodiment of the present invention is as follows: Please see Figure 1 - Figure 5 A moisture-resistant circuit connector includes a plug 2 and a socket 4. The outer wall of the plug 2 is connected to a first housing 1, and the outer wall of the socket 4 is connected to a second housing 3. The second housing 3 can be inserted into the inner wall of the first housing 1 to achieve mating between the plug 2 and the socket 4. The plug 2 is located on the inner wall of the first housing 1, and the mating part of the socket 4 is located at the right end of the second housing 3. The right end of the second housing 3 matches the inner wall of the first housing 1. When mating, the right end of the second housing 3 is inserted into the inner wall of the first housing 1 to achieve connection between the first housing 1 and the second housing 3. At the same time, the socket 4 and the plug 2 are also mated. The first housing 1 and the second housing 3 play a protective role for the plug 2 and the socket 4.

[0022] Furthermore, the first housing 1 is provided with a sealing component 5, which includes a liquid bladder 51 filled with filling fluid and two liquid boxes 53. When the plug 2 and the socket 4 are connected, the liquid boxes 53 can deliver the filling fluid to the liquid bladder 51. After the liquid bladder 51 expands after being filled with fluid, it seals the connection between the first housing 1 and the second housing 3. After the first housing 1 and the second housing 3 are connected, the liquid bladder 51 optimizes the sealing effect by expanding, thus playing a good dustproof role.

[0023] Furthermore, the first housing 1 is provided with a protective component 6, which is used to protect the plug 2 after it is separated from the socket 4. After the plug 2 is separated from the socket 4, the plug 2 inside the first housing 1 is exposed to the air, and the protective component 6 protects the plug 2, thereby reducing the rate of oxidation and corrosion of the plug 2, and effectively preventing moisture and damage.

[0024] Based on the above embodiments, another embodiment of the present invention is as follows: Please see Figure 2 - Figure 4 The inner wall of the first housing 1 has an annular groove, and the liquid bladder 51 is installed in the annular groove (e.g., Figure 3As shown), square grooves are respectively opened on the front and rear sides of the first housing 1, and two liquid boxes 53 are respectively installed in the two square grooves. A stopper plate 54 is slidably connected to the inner wall of the liquid box 53. Two wedges 57 are slidably connected to the front and rear sides of the second housing 3. After the second housing 3 is inserted into the first housing 1, the two wedges 57 can respectively embed into the two liquid boxes 53. A liquid tube 52 is connected between the liquid box 53 and the liquid bladder 51. After the wedges 57 are embedded in the liquid box 53, they can squeeze the stopper plate 54. A spring is provided between the wedges 57 and the second housing 3. The end of the wedge 57 near the first housing 1 has an angle. When the second housing 3 is inserted... When the first housing 1 is in place, the two wedges 57 on the second housing 3 contact the inner wall edge of the first housing 1. The wedges 57 are trapezoidal in shape, and there is a gap at the connection between the second housing 3 and the wedges 57. The spring on the wedge 57 is located in the gap. The angle of the wedge 57 first contacts the inner wall edge of the first housing 1, and then the wedge 57 moves towards the socket 4 due to the counter-pushing force of the edge. The spring is compressed synchronously, so that the two wedges 57 are respectively embedded into the outer wall of the second housing 3. Then the second housing 3 is smoothly inserted into the first housing 1. When the second housing 3 is inserted into place, the two wedges 57 respectively contact the two plug plates 54. Upon contact, the wedge 57 is located inside the liquid container 53. Subsequently, the wedge 57 returns to its original position away from the socket 4 using the spring force. During this process, the wedge 57 applies a pushing force to the stop plate 54 it contacts, causing the stop plate 54 to move away from the socket 4. After the stop plate 54 moves, an insertion opening is formed on the side of the liquid container 53 near the wedge 57. The two wedges 57 are respectively inserted into the insertion openings formed by the two liquid containers 53, thus forming a snap-fit ​​structure. This allows the two wedges 57 to lock the second housing 3 by inserting into the two insertion openings, preventing the second housing 3 from separating from the first housing 1 due to external disturbance. To improve the stability of the connection between the plug 2 and the socket 4, the moving stopper 54 squeezes the filling liquid in the liquid box 53 into the liquid bladder 51 through the liquid pipe 52, causing the liquid bladder 51 to expand. This provides a flexible seal to the connection between the first housing 1 and the second housing 3. After expansion, the liquid bladder 51 fills the gap between the first housing 1 and the second housing 3, thus achieving a good flexible seal. This prevents moisture from entering the first housing 1 during subsequent operations, thus achieving a good moisture-proof effect, ensuring the operational stability of the plug 2 and the socket 4, and extending their service life.

[0025] In addition, a light rod 55 is slidably connected to the end of the liquid box 53 away from the stopper plate 54. The light rod 55 is connected to the stopper plate 54, and a frustum is provided at the end of the light rod 55 away from the stopper plate 54. When it is necessary to separate the first housing 1 and the second housing 3, press the frustum of the two light rods 55 so that the two light rods 55 drive the two stopper plates 54 to move closer to each other. The two stopper plates 54 push the two wedges 57 into the second housing 3, so that the wedges 57 lose their locking effect. At the same time, when the two stopper plates 54 move closer to each other, the negative pressure is used to draw the filling liquid in the liquid bladder 51 back into the two liquid boxes 53 through the two liquid tubes 52, so that the liquid bladder 51 contracts and avoids the liquid bladder 51 expanding and increasing the separation resistance between the first housing 1 and the second housing 3. Then the user can separate the first housing 1 and the second housing 3 to separate the plug 2 and the socket 4.

[0026] In addition, a rubber sleeve 56 is connected to the outer wall of the liquid tank 53. The rubber sleeve 56 is made of flexible material, and the truncated cone is located inside the rubber sleeve 56. The rubber sleeve 56 and the outer wall of the liquid tank 53 are sealed together. The rubber sleeve 56 is used to protect the connection between the liquid tank 53 and the light rod 55. Furthermore, when the user presses the truncated cone of the light rod 55, the flexible contact bar of the rubber sleeve 56 makes the pressing process more comfortable.

[0027] Based on the above embodiments, another embodiment of the present invention is as follows: Please see Figure 2 , Figure 5 , Figure 6 The protective component 6 includes two first protective plates 61, which are mirror-hinged within the first housing 1. A leaf spring 62 connects the first protective plates 61 to the inner wall of the first housing 1. The two first protective plates 61 are in a closed state. When the second housing 3 is inserted into the first housing 1, it can push the two first protective plates 61 apart, so that the two first protective plates 61 respectively fit against the upper and lower inner walls of the first housing 1. When the first housing 1 and the second housing 3 are separated, the two first protective plates 61 are in contact and form a vertical surface. At this time, the two first protective plates 61 seal the inside of the first housing 1, preventing the plug 2 from being exposed to the air, and also preventing moisture and dust from entering the inside of the first housing 1 and contacting the plug 2, effectively reducing the rate of oxidation and corrosion of the plug 2.

[0028] Based on the above embodiments, another embodiment of the present invention is as follows: Please see Figure 2 , Figure 7 - Figure 10The protective component 6 also includes two second protective plates 63. Each second protective plate 63 has a row of slots. The plug 2 has two rows of pins, which can be inserted into the slots of the two second protective plates 63 respectively. The two first protective plates 61 and the two second protective plates 63 are respectively provided with a linkage mechanism. When the first protective plate 61 swings towards the inner wall of the first housing 1, the linkage mechanism drives the second protective plate 63 to swing towards the inner wall of the first housing 1. When the two first protective plates 61 are closed, the second protective plates 63 are closed. At this time, the two second protective plates 63 are V-shaped mirror distribution, and the two rows of pins are inserted into the slots of the two second protective plates 63 respectively. The ends of the pins are inserted into the slots, and the slots provide a wrap-around protection for the ends of the pins, further improving the protection level of the plug 2 and reducing the contact area between the pins and the air, thereby delaying the oxidation and corrosion rate.

[0029] It is worth noting that the linkage mechanism includes a first connecting rod 64, a slider 65, and a second connecting rod 66. The slider 65 is horizontally slidably connected to the inner wall of the first housing 1. The first connecting rod 64 is hinged between the slider 65 and the first protective plate 61, and the second connecting rod 66 is hinged between the slider 65 and the second protective plate 63. Figure 7 As shown, taking the first guard plate 61, the linkage mechanism, and the second guard plate 63 located at the top as an example, when the first guard plate 61 moves upward, it drives the slider 65 to slide to the right through the first connecting rod 64. When the slider 65 moves to the right, it drives the top of the second connecting rod 66 to move to the right, causing the second connecting rod 66 to swing clockwise. The bottom of the second connecting rod 66 moves upward and drives the second guard plate 63 to swing upward. When the slider 65 moves to the right and reaches its position, the second connecting rod 66 moves to a near-horizontal state. At this time, both the second guard plate 63 and the first guard plate 61 are in contact with the upper inner wall of the first housing 1 (e.g., Figure 10 As shown), it does not affect the process of the second housing 3 being inserted into the first housing 1, nor does it hinder the connection between the plug 2 and the socket 4. When the socket 4 is separated from the plug 2, the first guard plate 61 closes due to the elastic force of the leaf spring 62. The first guard plate 61 drives the slider 65 to move to the left through the first connecting rod 64. The slider 65 drives the second guard plate 63 to swing downward through the second connecting rod 66. Finally, the two second guard plates 63 close again and wrap the end of the pin through the slot.

[0030] It is worth noting that a row of mounting slots is provided on the second protective plate 63, and a row of pads 67 are hinged in each of the mounting slots. Each row of pads 67 can be inserted into the gap between a row of pins. A spring is provided between the pads 67 and the mounting slots. The pads 67 are divided into two elastically expandable parts. When the pads 67 are pressed by the second housing 3, they can be inserted into the mounting slots. When the slots of the second protective plate 63 cover the ends of the pins, the pads 67 cover the sides of the pins. There is a pad 67 between every two adjacent pins (e.g., Figure 9As shown, the pad 67 increases the area of ​​the pin and provides lateral support. When the first housing 1 is disturbed by external force, the lateral support of the pad 67 can effectively prevent the pin from deforming due to external force, further improving the protection of the plug 2. The pad 67 is similar to the structure of a fan-shaped air pump. When the second housing 3 is inserted into the first housing 1, the right edge of the second housing 3 contacts the pad 67 and applies force to the pad 67, causing the pad 67 to retract into the mounting groove without obstructing the insertion process of the second housing 3.

[0031] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A moisture-resistant circuit connector, comprising a plug (2) and a socket (4), characterized in that: The plug (2) is connected to a first housing (1) on its outer wall, and the socket (4) is connected to a second housing (3) on its outer wall. The second housing (3) can be inserted into the inner wall of the first housing (1) to achieve the docking of the plug (2) and the socket (4). The first housing (1) is provided with a sealing assembly (5), which includes a liquid bladder (51) filled with filling liquid and two liquid boxes (53). When the plug (2) and the socket (4) are connected, the liquid boxes (53) can deliver the filling liquid to the liquid bladder (51). After the liquid bladder (51) is filled and expands, it seals the connection between the first housing (1) and the second housing (3). The first housing (1) is provided with a protective component (6) for protecting the plug (2) after the plug (2) is separated from the socket (4).

2. The moisture-resistant circuit connector according to claim 1, characterized in that: The inner wall of the first housing (1) is provided with an annular groove, and the liquid bladder (51) is installed in the annular groove. The front and rear sides of the first housing (1) are respectively provided with square grooves, and the two liquid boxes (53) are respectively installed in the two square grooves. The inner wall of the liquid box (53) is slidably connected with a stopper plate (54). The front and rear sides of the second housing (3) are respectively slidably connected with two wedges (57). After the second housing (3) is inserted into the first housing (1), the two wedges (57) can be embedded into the two liquid boxes (53) respectively. A liquid tube (52) is connected between the liquid box (53) and the liquid bladder (51). After the wedges (57) are embedded into the liquid box (53), they can squeeze the stopper plate (54).

3. A moisture-resistant circuit connector according to claim 2, characterized in that: A spring is provided between the wedge (57) and the second housing (3), and the end of the wedge (57) near the first housing (1) is provided with an angle.

4. A moisture-resistant circuit connector according to claim 3, characterized in that: The liquid box (53) is slidably connected to a light rod (55) at one end away from the stopper plate (54). The light rod (55) is connected to the stopper plate (54), and a frustum is provided at one end of the light rod (55) away from the stopper plate (54).

5. A moisture-resistant circuit connector according to claim 4, characterized in that: The outer wall of the liquid box (53) is connected to a rubber sleeve (56), which is made of flexible material, and the frustum is located inside the rubber sleeve (56).

6. A moisture-resistant circuit connector according to claim 1, characterized in that: The protective assembly (6) includes two first protective plates (61), which are mirror-hinged inside the first housing (1). A leaf spring (62) is connected between the first protective plate (61) and the inner wall of the first housing (1). The two first protective plates (61) are closed. When the second housing (3) is inserted into the first housing (1), it can push the two first protective plates (61) apart so that the two first protective plates (61) respectively fit against the upper inner wall and the lower inner wall of the first housing (1).

7. A moisture-resistant circuit connector according to claim 6, characterized in that: The protective component (6) also includes two second protective plates (63), each with a row of slots. The plug (2) has two rows of pins, which can be inserted into the slots of the two second protective plates (63) respectively. A linkage mechanism is provided between the two first protective plates (61) and the two second protective plates (63). When the first protective plate (61) swings toward the inner wall of the first housing (1), the linkage mechanism drives the second protective plate (63) to swing toward the inner wall of the first housing (1).

8. A moisture-resistant circuit connector according to claim 7, characterized in that: The linkage mechanism includes a first link (64), a slider (65), and a second link (66). The slider (65) is horizontally slidably connected to the inner wall of the first housing (1). The first link (64) is hinged between the slider (65) and the first guard plate (61). The second link (66) is hinged between the slider (65) and the second guard plate (63).

9. A moisture-resistant circuit connector according to claim 7, characterized in that: The second protective plate (63) has a row of mounting slots, and a row of pads (67) are hinged in the row of mounting slots. The row of pads (67) can be embedded in the gaps between the row of pins. A spring is provided between the pads (67) and the mounting slots. The pads (67) are divided into two parts that can elastically extend and retract. When the pads (67) are squeezed by the second housing (3), they can be embedded in the mounting slots.

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