A contact module and a connector for a multi-tier chamber

Abstract

The present invention relates to a contact module and a connector of a multi-layer chamber. An insertion hole is provided in a female pin, and a sealed insulating rod is inserted at the front end of the insertion hole. The female pin includes an oil bladder group; four sealing rings are sequentially formed between the oil bladder group and the side surface of the sealed insulating rod from the front end to the rear end, and three cavities are provided between the four sealing rings. The contact spring piece of the female pin is arranged in the third cavity; the second cavity and the first cavity are mutually communicated, and a filter for filtering impurities is provided at the communication port; after the male pin is inserted from the front end of the insertion hole, the sealed insulating rod is pushed into the rear end of the insertion hole. In this solution, multiple sealing rings are provided between the oil bladder group and the sealed insulating rod, and cavities are formed between the sealing rings. The contact spring piece is isolated from the outside through multiple cavities, and the sealing performance is good. The impurities brought in can be filtered through the first cavity and the second cavity.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and particularly to a contact module and a connector with multi-layer chambers. Background Art

[0002] A connector is a component that engineers often come into contact with. A connector bridges the communication between blocked or isolated circuits in a circuit, enabling the flow of current and allowing the circuit to achieve its intended function. Connectors are indispensable components in electronic devices. The forms and structures of connectors vary widely. With different application objects, frequencies, powers, application environments, etc., there are various forms of connectors. Some power and communication connectors need to be used underwater, and they have relatively high requirements for sealing and waterproofing performance. Generally, they are provided with sealing rings for isolation to ensure the sealing of the connector. In existing underwater connectors, insulating oil is filled in the main sealing cavity and the insertion hole of the male pin. However, there is only a small section of sealing ring before the main sealing cavity, and its sealing effect is not good. In turbid water or other relatively harsh working conditions, external impurities or even small particulate matter will mix into the oil cavity with the underwater insertion and extraction of the connector, resulting in electrical stress and affecting the contact performance; even leading to poor sealing and affecting the insulation effect. Summary of the Invention

[0003] Based on this, in view of the problem that the existing connector has poor sealing and is prone to affecting the insulation effect, it is necessary to provide a contact module and a connector with multi-layer chambers.

[0004] On the one hand, the present invention provides a contact module with multi-layer chambers, including a male pin and a female pin that are adapted to each other. An insertion hole is provided in the female pin, and a sealed insulating rod is inserted at the front end of the insertion hole. The female pin includes an oil bladder group; a first sealing ring, a second sealing ring, a third sealing ring, and a fourth sealing ring are sequentially formed between the oil bladder group and the side surface of the sealed insulating rod from the front end to the rear end. A first cavity is provided between the first sealing ring and the second sealing ring, a second cavity is provided between the second sealing ring and the third sealing ring, a third cavity is provided between the third sealing ring and the fourth sealing ring, and the contact spring piece of the female pin is arranged in the third cavity; after the male pin is inserted from the front end of the insertion hole, the sealed insulating rod is pushed into the rear end of the insertion hole.

[0005] Wherein, in order to make it more labor-saving when the male pin is inserted and pulled out, the position of the female pin at the rear end of the fourth sealing ring is directly communicated with the outside; when the male pin is not inserted into the insertion hole or after it is pulled out of the insertion hole, both the front and rear ends of the sealed insulating rod are in contact with the external medium; after the male pin is inserted into the insertion hole, the rear end of the sealed insulating rod is in contact with the external medium.

[0006] Among them, in order to balance the pressure inside the cavity and efficiently prevent external liquid and impurities from entering the chamber where the male and female needles are in contact, the second cavity is in communication with the first cavity, and a filter is provided at the communication port for filtering impurities.

[0007] Among them, in order to seal and isolate the rear end of the third cavity to further improve its sealing performance, a fourth cavity is also provided between the oil bladder group and the side surface of the sealing insulating rod, and the third cavity is located between the fourth cavity and the second cavity; the fourth cavity is in communication with the first cavity, and an adsorber for adsorbing impurities is provided in the fourth cavity.

[0008] Among them, in order to facilitate the distribution of the oil bladders of the female needle and improve the sealing performance, the oil bladder group includes a first oil bladder and a second oil bladder. The first sealing ring is formed between the first oil bladder and the side surface of the sealing insulating rod, and the second sealing ring, the third sealing ring, and the fourth sealing ring are formed between the second oil bladder and the side surface of the sealing insulating rod.

[0009] Among them, in order to have enough space to store the insulating liquid, a cage-shaped colloid framework is provided between the first oil bladder and the second oil bladder.

[0010] Among them, in order to facilitate the mixed impurities or small particles to quickly enter the rear side of the first cavity through the outer cavity channel and prevent them from entering the second chamber through the second sealing ring, a flared opening with a gradually increasing aperture from the front end to the rear end is provided inside the colloid framework, and the rear end of the flared opening is in communication with the first cavity.

[0011] Among them, in order to seal and lock the two oil bladders, a front locking sleeve and a rear locking sleeve are provided on the female needle. The first oil bladder is fixed to the colloid framework through the front locking sleeve, and the second oil bladder is fixed to the colloid framework through the rear locking sleeve.

[0012] Among them, in order for the contact reed to be in full contact with the male needle, the contact reed is arranged in a stepped hole inside the third cavity, and a plurality of inner cavity micropores are provided radially in the stepped hole.

[0013] Among them, in order to press the contact end surface of the sealing insulating rod against the male needle and reduce the entry of impurities, a spring is provided at the rear end of the sealing insulating rod. After the male needle is inserted from the front end of the insertion hole, the sealing insulating rod squeezes and compresses the spring; a guide rail parallel to the axial direction of the insertion hole is also provided inside the female needle, and the sealing insulating rod is slidably connected to the guide rail through a slider.

[0014] On the other hand, the present invention also provides a connector, which includes at least one set of contact modules with multi-layer chambers as described above, a male plug component and a female plug component. The male pins are arranged on the male plug component, and the female pins are arranged on the female plug component. The male plug component can be inserted into the female plug component to complete the connection between the male pins and the female pins.

[0015] Wherein, in order to ensure the safe and reliable connection of the male and female plugs of the connector, the male plug component is guided and locked. There is a convex slider on the male plug component, and a guiding slide rail extending from the front end to the rear end is arranged on the female plug component. When the male plug component is inserted into the female plug component, the convex slider is slidably connected in the guiding slide rail. There is an elastic buckle at the rear end position of the guiding slide rail. After the convex slider slides to a preset position, the elastic buckle locks the male plug component through the convex slider.

[0016] In the present invention, a plurality of sealing rings are arranged between the oil bladder group and the sealed insulating rod, and cavities are formed between the sealing rings. The contact spring pieces are isolated from the outside through the plurality of cavities, and the sealing performance is good. The impurities brought in can be filtered through the first cavity and the second cavity, which can effectively improve the reliability of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall schematic diagram of an embodiment of the contact module with multi-layer chambers of the present invention;

[0018] Figure 2 For Figure 1 the cross-sectional schematic diagram of the female pin shown;

[0019] Figure 3 For Figure 1 the cross-sectional schematic diagram of the male pin shown;

[0020] Figure 4 For Figure 2 the cross-sectional schematic diagram of B-B in;

[0021] Figure 5 For Figure 2 the cross-sectional schematic diagram of C-C in;

[0022] Figure 6 For Figure 2 the cross-sectional schematic diagram of D-D in;

[0023] Figure 7 For Figure 2 the cross-sectional schematic diagram of E-E in;

[0024] Figure 8 It is a structural schematic diagram of the first oil bladder part of the contact module with multi-layer chambers of the present invention;

[0025] Figure 9Schematic structural diagram of the second oil bladder part of the contact module of the multi-layer chamber of the present invention;

[0026] Figure 10 Schematic structural diagram of the colloid frame part of the contact module of the multi-layer chamber of the present invention;

[0027] Figure 11 Schematic structural diagram of the filter element part of the contact module of the multi-layer chamber of the present invention;

[0028] Figure 12 Cross-sectional schematic diagram of the connector of the present invention in the first state;

[0029] Figure 13 Cross-sectional schematic diagram of the connector of the present invention in the second state;

[0030] Figure 14 Cross-sectional schematic diagram of the connector of the present invention in the third state.

[0031] In the drawings, the list of components represented by each reference numeral is as follows:

[0032] 1. Female needle; 11. Sealed insulating rod; 121. First oil bladder; 122. Second oil bladder; 131. First sealing ring; 132. Second sealing ring; 133. Third sealing ring; 134. Fourth sealing ring; 141. First cavity; 142. Second cavity; 143. Third cavity; 144. Fourth cavity; 15. Filter element; 16. Contact reed; 161. Inner cavity micropores; 17. Adsorber; 18. Colloid frame; 181. Flared opening; 191. Front locking sleeve; 192. Rear locking sleeve; 193. Spring; 194. Guide rail; 195. Slide block; 2. Male needle; 21. Insulating colloid; 3. Male plug assembly; 31. Raised slide block; 4. Female plug assembly; 41. Guide slide rail; 42. Elastic buckle. Detailed implementation manners

[0033] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following clearly and completely describes the specific implementation manners of the present invention with reference to the accompanying drawings. Obviously, the specific details described below are only some embodiments of the present invention, and the present invention can also be implemented in many other embodiments different from those described herein. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this invention belongs. The terms used in the specification of this invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0036] In one embodiment, please refer to Figures 1 to 7 As shown, a contact module of a multi-layer chamber includes a mating male pin 2 and female pin 1. An insulating colloid 21 is wrapped around the outer side of the middle section of the male pin 2. An insertion hole is provided in the female pin 1, and a sealed insulating rod 11 is inserted at the front end of the insertion hole. The female pin 1 includes an oil bladder group; a first sealing ring 131, a second sealing ring 132, a third sealing ring 133, and a fourth sealing ring 134 are sequentially formed between the oil bladder group and the side surface of the sealed insulating rod 11 from the front end to the rear end. A first cavity 141 is provided between the first sealing ring 131 and the second sealing ring 132, a second cavity 142 is provided between the second sealing ring 132 and the third sealing ring 133, a third cavity 143 is provided between the third sealing ring 133 and the fourth sealing ring 134, and the contact spring piece 16 of the female pin 1 is arranged in the third cavity 143; the second cavity 142 communicates with the first cavity 141, and a filter 15 for filtering impurities is provided at the communication port.

[0037] After the male pin 2 is inserted from the front end of the insertion hole, the sealed insulating rod 11 is pushed into the rear end of the insertion hole, and a new first sealing ring 131, a new second sealing ring 132, and a new third sealing ring 133 are sequentially formed by the insulating colloid 21 on the male pin 2 replacing the sealed insulating rod 11 between the oil bladder group. The material of the oil bladder group is CR rubber with good corrosion resistance and sealing performance, and the insulating oil is filled in each cavity of the female pin 1 and the oil bladder group.

[0038] In the present invention, a plurality of sealing rings are provided between the oil bladder group and the sealed insulating rod 11, cavities are formed between the sealing rings, and the contact spring piece 16 is isolated from the outside through the plurality of cavities. The sealing performance is good, and the impurities brought in can be filtered through the first cavity 141 and the second cavity 142, which can effectively improve the reliability of the connector. It can also balance the pressure in each cavity.

[0039] In the existing underwater connector, one end of the sealed insulating rod is in contact with the external medium, and the other end is in the preset oil cavity. The pressure change generated during the insertion and separation processes is gradually transmitted to the outside through the preset oil cavity and oil bladder to achieve the pressure balance during underwater plugging and unplugging. At the position where the male pin is inserted into the hole, a one-piece long sealing plug is mostly used. During the plugging and unplugging processes, if the plugging and unplugging speed is too fast and the plugging and unplugging force becomes larger, the sealing effect will also become poor.

[0040] In this embodiment, to address the above problems of the existing underwater connector, the female pin 1 of this solution is in communication with the outside at the position behind the fourth sealing ring 134; when the male pin 2 is not inserted into the insertion hole or after it is pulled out of the insertion hole, both the front and rear ends of the sealed insulating rod 11 are in contact with the external medium; after the male pin 2 is inserted into the insertion hole, the rear end of the sealed insulating rod 11 is in contact with the external medium.

[0041] It can be understood that this structure is more labor-saving when the male pin 2 is inserted or pulled out, and during the plugging and unplugging process of the male and female pins, the pressure at both ends of the sealed insulating rod is basically balanced.

[0042] On the basis of this embodiment, a fourth cavity 144 is also provided between the oil bladder group and the side surface of the sealed insulating rod 11, and the third cavity 143 is located between the fourth cavity 144 and the second cavity 142; the fourth cavity 144 is in communication with the first cavity 141, and an adsorber 17 for adsorbing impurities is provided in the fourth cavity 144. Among them, the adsorber 17 is a grid-type adsorber. Of course, it can also be an adsorber 17 with other structures, such as an adsorber 17 with inclined adsorption strips, etc., and its structure is not limited to that described in this embodiment. Among them, the first cavity 141 and the fourth cavity 144 are connected through an outer cavity channel to form an outer cavity. And the third cavity 143 is an embedding of the female pin 1.

[0043] It can be understood that the setting of the fourth cavity 144 can seal and block the rear end of the third cavity 143 to further improve its sealing performance and prevent impurities from entering the third cavity 143 from the rear end. During the insertion process, as the male pin 2 pushes the sealed insulating rod 11 to slide backward, when the third sealing ring 133 tightly holds the colloidal body of the male pin 2, a seal is formed between the colloidal body of the male pin 2 and the third sealing ring 133, and a seal is formed between the insulating sealing rod and the fourth sealing ring 134. Thus, two sealing points form the contact inner cavity during insertion.

[0044] Refer to Figure 2 、 Figure 8 and Figure 9 As shown, in order to facilitate the oil bladder distribution of the female pin 1 and improve the sealing performance, the oil bladder group includes a first oil bladder 121 and a second oil bladder 122. A first sealing ring 131 is formed between the first oil bladder 121 and the side surface of the sealed insulating rod 11, and a second sealing ring 132, a third sealing ring 133, and a fourth sealing ring 134 are formed between the second oil bladder 122 and the side surface of the sealed insulating rod 11.

[0045] It should be noted that a plurality of oil grooves are provided on the outer periphery and the rear end surface of the first oil bladder 121. The function of the oil grooves is to make the pressure inside and outside the first sealing ring 131 more balanced, so that the insulation sealing between the insulating sealing rod or the male needle 2 colloid and the first sealing ring 131 is more reliable and stable.

[0046] Refer to Figure 2 and Figure 10 , a cage-shaped colloid frame 18 is provided between the first oil bladder 121 and the second oil bladder 122. It is made of an engineering material PEI that is acid and alkali resistant. When ensuring that the strength of the cavity is large enough, there is also enough space to store the insulating liquid.

[0047] Furthermore, a flared opening 181 with a gradually increasing aperture from the front end to the rear end is provided inside the colloid frame 18. The rear end of the flared opening 181 communicates with the first cavity 141. The flared structure can facilitate the impurities or small particles mixed in to quickly enter the rear side of the first cavity 141 through the outer cavity channel, avoiding them from entering the second chamber through the second sealing ring 132, and further improving the stability of the connector.

[0048] Specifically, in order to seal and lock the two oil bladders, a front locking sleeve 191 and a rear locking sleeve 192 are provided on the female needle 1. The first oil bladder 121 is fixed to the colloid frame 18 through the front locking sleeve 191, and the second oil bladder 122 is fixed to the colloid frame 18 through the rear locking sleeve 192.

[0049] As Figure 2 shown, in order for the contact reed 16 to be in full contact with the male needle 2, the contact reed 16 is arranged in a stepped hole in the third cavity 143, and a plurality of inner cavity micropores 161 are provided radially in the stepped hole. The full contact between the contact reed 16 and the contact head of the male needle 2 is realized through the structure of the stepped hole and the inner cavity micropores 161, ensuring sufficient connection.

[0050] Based on this embodiment, a spring 193 is provided at the rear end of the insertion hole. After the male needle 2 is inserted from the front end of the insertion hole, the sealing insulating rod 11 squeezes and compresses the spring 193; a guide rail 194 parallel to the axial direction of the insertion hole is also provided inside the female needle 1, and the sealing insulating rod 11 is slidably connected to the guide rail 194 through a slider 195.

[0051] Specifically, a slider 195 and a spring 193 are sleeved on the rear end of the sealing insulating rod 11. The spring 193 is sleeved on a guide post. The slider 195 slides on the guide rail 194, and under the action of the spring 193, the contact end surface between the sealing insulating rod 11 and the male needle 2 is tightly pressed, reducing the entry of impurities and improving the sealing performance of the connector.

[0052] Refer to Figure 12 , Figure 13 andFigure 14 As shown in the three attached drawings, which respectively show the first state, the second state and the third state during the process of inserting the base male plug component 3 into the female plug component 4, the present invention also provides a connector. The connector includes at least one set of contact modules with multi-layer chambers as described above for the male plug component 3 and the female plug component 4. The male pins 2 are arranged on the male plug component 3, and the female pins 1 are arranged on the female plug component 4. The male plug component 3 can be inserted into the female plug component 4 to complete the connection between the male pins 2 and the female pins 1.

[0053] Furthermore, a raised slider 31 is provided on the male plug component 3, and a guiding slide rail 41 extending from the front end to the rear end is provided on the female plug component 4. When the male plug component 3 is inserted into the female plug component 4, the raised slider 31 is slidably connected within the guiding slide rail 41. A spring buckle 42 is provided at the rear end position of the guiding slide rail 41. After the raised slider 31 slides to a preset position, the spring buckle 42 locks the male plug component 3 through the raised slider 31. The use of the guiding slide rail 41 and the spring buckle 42 can ensure the safe and reliable connection of the male and female plugs of the connector, and guide and lock the male plug component 3.

[0054] It can be understood that multiple sets of contact modules with multi-layer chambers can be provided on the connector according to requirements, and the number is not limited by what is shown in the attached drawings of this embodiment.

[0055] Through the technical solution of the present invention, four sealing rings are formed by the male pins 2 or the sealing and insulating rods 11 and two oil sacs, and four cavities are formed by the four sealing rings to protect the contact spring 193 in the middle cavity. It has good sealing performance, can filter the impurities brought in, and can effectively ensure the reliability of the connector.

[0056] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as within the scope described in this specification.

[0057] The above embodiments only represent several implementation manners of the present invention, and the description is relatively specific and detailed. However, it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations, substitutions and improvements can be made, and these should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention patent should be subject to the claims.

Claims

1. A contact module for a multi-level chamber, characterized in that, Comprising: A mating male pin and female pin. An insertion hole is provided inside the female pin. A sealed insulating rod is inserted at the front end of the insertion hole. The female pin includes an oil bladder group. Between the oil bladder group and the side surface of the sealed insulating rod, a first sealing ring, a second sealing ring, a third sealing ring, and a fourth sealing ring are formed in sequence from the front end to the rear end. A first cavity is provided between the first sealing ring and the second sealing ring. A second cavity is provided between the second sealing ring and the third sealing ring. A third cavity is provided between the third sealing ring and the fourth sealing ring. The contact spring piece of the female pin is arranged in the third cavity. After the male pin is inserted from the front end of the insertion hole, the sealed insulating rod is pushed into the rear end of the insertion hole. The second cavity communicates with the first cavity, and a filter for filtering impurities is provided at the communication port. A fourth cavity is further provided between the oil bladder group and the side surface of the sealed insulating rod. The third cavity is located between the fourth cavity and the second cavity. The fourth cavity communicates with the first cavity, and an adsorber for adsorbing impurities is provided in the fourth cavity. The oil bladder group includes a first oil bladder and a second oil bladder. The first sealing ring is formed between the first oil bladder and the side surface of the sealed insulating rod. The second sealing ring, the third sealing ring, and the fourth sealing ring are formed between the second oil bladder and the side surface of the sealed insulating rod. A cage-shaped colloid frame is provided between the first oil bladder and the second oil bladder. Wherein, a flared opening with a gradually increasing aperture from the front end to the rear end is provided inside the colloid frame, and the rear end of the flared opening communicates with the first cavity. Wherein, a front locking sleeve and a rear locking sleeve are provided on the female pin. The first oil bladder is fixed to the colloid frame through the front locking sleeve, and the second oil bladder is fixed to the colloid frame through the rear locking sleeve.

2. The contact module of the multi-level chamber according to claim 1, characterized in that The position of the female pin at the rear end of the fourth sealing ring communicates with the outside. When the male pin is not inserted into the insertion hole, both the front and rear ends of the sealed insulating rod are in contact with the external medium. After the male pin is inserted into the insertion hole, the rear end of the sealed insulating rod is in contact with the external medium.

3. The contact module of the multi-level chamber according to claim 1, wherein The contact spring piece is arranged in a stepped hole in the third cavity, and a plurality of inner cavity micropores are provided radially in the stepped hole.

4. The contact module of the multi-layer chamber according to claim 1, wherein A spring is provided at the rear end of the sealed insulating rod. After the male pin is inserted from the front end of the insertion hole, the sealed insulating rod squeezes and compresses the spring. A guide rail parallel to the axial direction of the insertion hole is further provided inside the female pin, and the sealed insulating rod is slidably connected to the guide rail through a slider.

5. A connector, characterized in that, Comprising a male plug assembly, a female plug assembly, and at least one contact module with a multi-layer chamber as described in any one of claims 1 to 4. The male pin is arranged on the male plug assembly, and the female pin is arranged on the female plug assembly. The male plug assembly can be inserted into the female plug assembly to complete the connection between the male pin and the female pin.

6. The connector according to claim 5, characterized in that, The male plug component is provided with a convex slider, and the female plug component is provided with a guiding slide rail extending from the front end to the rear end; when the male plug component is inserted into the female plug component, the convex slider is slidably connected within the guiding slide rail; a spring buckle is provided at the rear end position of the guiding slide rail, and after the convex slider slides to a preset position, the spring buckle locks the male plug component through the convex slider.

Images