CN113178736A

CN113178736A - Contact module and connector of multi-layer chamber

Info

Publication number: CN113178736A
Application number: CN202110440010.7A
Authority: CN
Inventors: 王定森; 林平; 熊洪煌
Original assignee: Xiamen Wain Electrical Co ltd
Current assignee: Xiamen Wain Electrical Co ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2021-07-27
Anticipated expiration: 2041-04-23
Also published as: CN113178736B

Abstract

The invention relates to a multi-layer chamber contact module and a connector. A female needle is provided with an insertion hole, a sealing insulating rod is inserted into the front end of the insertion hole, and the female needle includes an oil bag group; Four sealing rings are formed between the sides from the front end to the back end in sequence, and three cavities are arranged between the four sealing rings, and the contact spring of the female pin is arranged in the third cavity; They are connected to each other, and the conducting port is provided with a filter element for filtering impurities; after the male needle is inserted from the front end of the insertion hole, the sealing insulating rod is pushed into the rear end of the insertion hole. In this scheme, a plurality of sealing rings are arranged between the oil bag group and the sealing insulating rod, a cavity is formed between the sealing rings, and the contact spring is isolated from the outside through the plurality of cavities. The first cavity and the second cavity are used to filter the impurities brought in.

Description

Contact module and connector of multi-layer chamber

Technical Field

The invention relates to the technical field of connectors, in particular to a contact module of a multi-layer chamber and a connector.

Background

A connector is a component that is frequently accessed by engineers. The connector bridges a communication bridge at a blocked position or among isolated and non-communicated circuits in the circuit, so that current flows and the circuit realizes a preset function. The connector is an indispensable component in an electronic device, and the connector form and structure are varied, and there are various different forms of connectors depending on the application object, frequency, power, application environment, and the like. And some electric power, communication connector need use under water, and it is higher to sealed waterproof performance requirement, and it is isolated usually to be equipped with the sealing washer to guarantee the sealed of connector. In the existing underwater connector, insulating oil is filled in the main sealing cavity and the insertion hole of the male pin, but only a small section of sealing ring is arranged in front of the main sealing cavity, and the sealing effect is poor. Under the working conditions of turbid water or severe water, external impurities and even small particulate matters can enter the oil cavity along with underwater plugging of the connector, so that electric stress is generated and the contact performance is influenced; even poor sealing performance, and influence on the insulation effect.

Disclosure of Invention

Accordingly, it is desirable to provide a multi-level chamber contact module and a connector, which can solve the problems of the conventional connector that the sealing performance is not good and the insulation effect is easily affected.

On one hand, the invention provides a contact module of a multi-layer cavity, which comprises a male needle and a female needle which are matched with each other, wherein an insertion hole is formed in the female needle, a sealing insulating rod is inserted into the front end of the insertion hole, and the female needle comprises an oil bag group; a first sealing ring, a second sealing ring, a third sealing ring and a fourth sealing ring are sequentially formed between the oil bag group and the side face of the sealing insulating rod from the front end to the rear end, a first cavity is arranged between the first sealing ring and the second sealing ring, a second cavity is arranged between the second sealing ring and the third sealing ring, a third cavity is arranged between the third sealing ring and the fourth sealing ring, and a contact reed of the female needle is arranged in the third cavity; after the male pin is inserted from the front end of the insertion hole, the sealing insulating rod is pushed into the rear end of the insertion hole.

In order to save more labor when the male needle is inserted and pulled out, the female needle is positioned at the rear end of the fourth sealing ring and is directly communicated with the outside; when the male pin is not inserted into the insertion hole or is pulled out of the insertion hole, the front end and the rear end of the sealing insulating rod are in contact with an external medium; after the male pin is inserted into the insertion hole, the rear end of the sealing insulating rod is in contact with an external medium.

Wherein, in order to make pressure balance in the cavity, avoid external liquid and impurity to get into the cavity of public female needle contact high-efficiently, the second cavity with switch on each other between the first cavity, and be equipped with the filter core ware that is used for filtering impurity on the conduction mouth.

In order to seal and obstruct the rear end of the third cavity and further improve the sealing performance of the third cavity, a fourth cavity is further arranged between the oil bag group and the side face of the sealing insulating rod, and the third cavity is located between the fourth cavity and the second cavity; the fourth cavity is communicated with the first cavity, and an adsorber for adsorbing impurities is arranged in the fourth cavity.

In order to facilitate the distribution of the oil bags of the female needle and improve the sealing performance, the oil bag group comprises a first oil bag and a second oil bag, the first sealing ring is formed between the first oil bag 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 bag and the side surface of the sealing insulating rod.

Wherein a cage-shaped colloid frame is arranged between the first oil bag and the second oil bag in order to have enough space for storing insulating liquid.

In order to facilitate the mixed impurities or small particles to rapidly enter the rear side of the first cavity through the outer cavity channel and avoid the mixed impurities or small particles from entering the second cavity through the second sealing ring, a horn mouth with the gradually increasing aperture from the front end to the rear end is arranged on the inner side of the colloid frame, and the rear end of the horn mouth is communicated with the first cavity.

Wherein, in order to seal and lock two oil sacs, female needle is equipped with preceding lock sleeve and back lock sleeve, first oil sac passes through preceding lock sleeve is fixed in on the colloid frame, second oil sac passes through back lock sleeve is fixed in on the colloid frame.

In order to enable the contact reed to be in full contact with the male pin, the contact reed is arranged in a step hole in the third cavity, and a plurality of inner cavity micropores are radially arranged in the step hole.

In order to tightly push the contact end face of the sealing insulating rod and the male pin and reduce the entering of impurities, the rear end of the sealing insulating rod is provided with a spring, and the spring is extruded and compressed by the sealing insulating rod after the male pin is inserted from the front end of the insertion hole; the female needle is also internally provided with a guide rail which is axially parallel to the insertion hole, and the sealing insulating rod is connected with the guide rail in a sliding way through a sliding block.

On the other hand, the invention also provides a connector, which comprises a male plug assembly and a female plug assembly, wherein the male plug assembly and the female plug assembly are provided with at least one group of contact modules of the multi-layer chambers, 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 plugged on the female plug assembly to complete the connection of the male needle and the female needle.

In order to ensure safe and reliable connection of the male and female connectors, the male plug assembly is guided and locked, a convex sliding block is arranged on the male plug assembly, and a guide sliding rail extending from the front end to the rear end is arranged on the female plug assembly; when the male plug assembly is inserted into the female plug assembly, the convex sliding block is connected in the guide sliding rail in a sliding manner; the rear end of the guide sliding rail is provided with an elastic buckle, and after the protruding sliding block slides to a preset position, the elastic buckle locks the male plug assembly through the protruding sliding block.

According to the invention, the plurality of sealing rings are arranged between the oil bag group and the sealing insulating rod, the cavity is formed between the sealing rings, the contact spring is isolated from the outside through the plurality of cavities, the sealing performance is better, the impurities brought in can be filtered through the first cavity and the second cavity, and the reliability of the connector can be effectively improved.

Drawings

FIG. 1 is a general schematic view of one embodiment of a multi-level chamber contact module of the present invention;

FIG. 2 is a schematic cross-sectional view of the female needle shown in FIG. 1;

FIG. 3 is a schematic cross-sectional view of the male needle of FIG. 1;

FIG. 4 is a schematic cross-sectional view B-B of FIG. 2;

FIG. 5 is a schematic cross-sectional view of C-C of FIG. 2;

FIG. 6 is a schematic cross-sectional view of D-D in FIG. 2;

FIG. 7 is a schematic cross-sectional view of E-E in FIG. 2;

FIG. 8 is a schematic view of the first oil bladder portion of the multi-stage chamber contact module of the present invention;

FIG. 9 is a schematic diagram of the second oil bladder portion of the multi-stage chamber contact module of the present invention;

FIG. 10 is a schematic diagram of the structure of the gel frame portion of the contact module of the multi-level chamber according to the present invention;

FIG. 11 is a schematic view of the cartridge portion of the multi-stage chamber contact module of the present invention;

FIG. 12 is a schematic cross-sectional view of the connector of the present invention in a condition one;

FIG. 13 is a schematic cross-sectional view of the connector of the present invention in condition two;

fig. 14 is a schematic cross-sectional view of the connector of the present invention in state three.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a female needle; 11. a sealing insulating rod; 121. a first oil pocket; 122. a second oil pocket; 131. a first seal ring; 132. a second seal ring; 133. a third seal ring; 134. a fourth seal ring; 141. a first cavity; 142. a second cavity; 143. a third cavity; 144. a fourth cavity; 15. a filter element device; 16. a contact spring; 161. inner cavity micropores; 17. an adsorber; 18. a colloidal framework; 181. a bell mouth; 191. a front locking sleeve; 192. a rear locking sleeve; 193. a spring; 194. a guide rail; 195. a slider; 2. a male needle; 21. insulating colloid; 3. a male plug assembly; 31. a raised slider; 4. a female plug assembly; 41. a guide slide rail; 42. an elastic button.

Detailed Description

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It is apparent that the specific details set forth in the following description are merely exemplary of the invention, which can be practiced in many other embodiments that depart from the specific details disclosed herein. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

In an embodiment, referring to fig. 1 to 7, a multi-layer chamber contact module includes a male pin 2 and a female pin 1 which are adapted to each other, an insulating colloid 21 is wrapped outside a middle section of the male pin 2, an insertion hole is formed in the female pin 1, a sealing insulating rod 11 is inserted into a front end of the insertion hole, and the female pin 1 includes an oil bag set; 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 bag group and the side surface of the seal insulating rod 11 from the front end to the rear end, a first cavity 141 is arranged between the first sealing ring 131 and the second sealing ring 132, a second cavity 142 is arranged between the second sealing ring 132 and the third sealing ring 133, a third cavity 143 is arranged between the third sealing ring 133 and the fourth sealing ring 134, and the contact reed 16 of the female needle 1 is arranged in the third cavity 143; the second cavity 142 and the first cavity 141 are communicated with each other, and the filter element 15 for filtering impurities is arranged on the communication opening.

After the male pin 2 is inserted from the front end of the insertion hole, the seal insulation rod 11 is pushed into the rear end of the insertion hole, and the insulation colloid 21 on the male pin 2 replaces the space between the seal insulation rod 11 and the oil bag set to form a new first seal ring 131, a new second seal ring 132 and a new third seal ring 133 in sequence. The oil bag group is made of CR rubber with good corrosion resistance and sealing performance, and all the cavities of the female needle 1 and the oil bag group are filled with insulating oil.

According to the invention, the plurality of sealing rings are arranged between the oil bag group and the sealing insulating rod 11, the cavities are formed between the sealing rings, the contact spring 16 is isolated from the outside through the plurality of cavities, the sealing performance is better, the introduced impurities can be filtered through the first cavity 141 and the second cavity 142, and the reliability of the connector can be effectively improved. The pressure in each cavity can also be balanced.

The existing underwater connector adopts a structure that one end of a sealing insulating rod is contacted with an external medium, and the other end of the sealing insulating rod is arranged in a preset oil cavity, and pressure change generated in the inserting, combining and separating processes of the structure is gradually transmitted to the outside through the preset oil cavity and an oil bag, so that the pressure balance of underwater inserting and pulling is realized; at the male pin insertion hole, a one-piece long sealing plug is often used. In the process of plugging, the plugging speed is too fast, the plugging force is increased, and the sealing effect is poor.

In the embodiment, aiming at the above problems of the existing underwater connector, the female needle 1 in the present scheme is located at the rear end of the fourth sealing ring 134 and is communicated with the outside; when the male pin 2 is not inserted into the insertion hole or is pulled out of the insertion hole, the front end and the rear end of the sealing insulating rod 11 are in contact with an external medium; after the male pin 2 is inserted into the insertion hole, the rear end of the seal insulation rod 11 is in contact with the external medium.

It can be understood that the structure is more labor-saving when the male pin 2 is inserted or pulled out, and the two ends of the sealing insulating rod are basically balanced in pressure during the insertion and pulling of the male pin and the female pin.

On the basis of the present embodiment, a fourth cavity 144 is further disposed between the oil bag set and the side surface of the insulating seal rod 11, and the third cavity 143 is located between the fourth cavity 144 and the second cavity 142; the fourth cavity 144 and the first cavity 141 are communicated with each other, and an adsorber 17 for adsorbing impurities is provided in the fourth cavity 144. The adsorber 17 is a grid-type adsorber, but it may also be an adsorber 17 with other structures, such as an adsorber 17 with oblique adsorption strips, and the structure is not limited to that described in the embodiment. Wherein the first chamber 141 and the fourth chamber 144 are connected by an outer chamber passage to form an outer chamber. And the third cavity 143 is an inset of the female needle 1.

It is understood that the fourth cavity 144 is disposed to seal and obstruct the rear end of the third cavity 143, so as to further improve the sealing performance thereof and prevent impurities from entering the third cavity 143 from the rear end. In the inserting process, the male pin 2 pushes against the sealing insulating rod 11 to slide backwards, when the third sealing ring 133 tightly holds the male pin 2 with the colloid, the colloid of the male pin 2 with the third sealing ring 133 forms sealing, the insulating sealing rod forms sealing with the fourth sealing ring 134, and therefore the two sealing points form an inserting contact inner cavity.

Referring to fig. 2, 8 and 9, in order to facilitate the distribution of the oil pockets of the female needle 1 and improve the sealing performance, the oil pocket set includes a first oil pocket 121 and a second oil pocket 122, a first sealing ring 131 is formed between the first oil pocket 121 and the side surface of the seal insulation 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 pocket 122 and the side surface of the seal insulation rod 11.

It should be noted that a plurality of oil grooves are formed on the periphery and the rear end surface of the first oil bag 121, and the oil grooves are used for balancing the pressure inside and outside the first sealing ring 131, so that the insulating sealing between the insulating sealing rod or the colloid of the male pin 2 and the first sealing ring 131 is more reliable and stable.

Referring to fig. 2 and 10, a cage-shaped colloid frame 18 is disposed between the first oil bag 121 and the second oil bag 122. It is made of an acid-resistant and alkali-resistant engineering material PEI. Under the condition of ensuring that the strength of the cavity is enough, enough space can be provided for storing the insulating liquid.

Further, a bell mouth 181 with a gradually increasing aperture diameter from the front end to the rear end is disposed on the inner side of the colloid frame 18, and the rear end of the bell mouth 181 is communicated with the first cavity 141. The trumpet structure can facilitate the mixed impurities or small particles to rapidly enter the rear side of the first cavity 141 through the outer cavity channel, so that the impurities or small particles are prevented from entering the second cavity through the second sealing ring 132, and the stability of the connector is further improved.

Specifically, in order to seal and lock the two oil bags, the female needle 1 is provided with a front locking sleeve 191 and a rear locking sleeve 192, the first oil bag 121 is fixed on the colloid frame 18 through the front locking sleeve 191, and the second oil bag 122 is fixed on the colloid frame 18 through the rear locking sleeve 192.

As shown in fig. 2, in order that the contact spring 16 can be sufficiently contacted with the male pin 2, the contact spring 16 is disposed in a stepped hole in the third cavity 143, and a plurality of inner cavity micro holes 161 are radially disposed in the stepped hole. The contact reed 16 and the contact head of the male pin 2 are fully contacted through the structure of the stepped hole and the inner cavity micro-hole 161, and the full connection of the contact reed and the contact head of the male pin is guaranteed.

On the basis of the embodiment, the rear end of the insertion hole is provided with a spring 193, and after the male needle 2 is inserted from the front end of the insertion hole, the seal insulation rod 11 extrudes and compresses the spring 193; the female needle 1 is also provided with a guide rail 194 parallel to the axial direction of the insertion hole, and the seal insulation rod 11 is connected with the guide rail 194 in a sliding manner through a slide block 195.

Specifically, the rear end of the sealing insulating rod 11 is sleeved with a sliding block 195 and a spring 193, the spring 193 is sleeved on a guide column, the sliding block 195 slides on the guide rail 194, and under the action of the spring 193, the contact end face of the sealing insulating rod 11 and the male pin 2 is tightly pushed, so that the entering of impurities is reduced, and the sealing performance of the connector is improved.

Referring to fig. 12, 13 and 14, the present invention further provides a connector, which is shown in the three figures, wherein the first state, the second state and the third state are respectively in the process that the male plug assembly 3 of the base is inserted into the female plug assembly 4, the connector comprises at least one group of multi-layer chamber contact modules of the male plug assembly 3 and the female plug assembly 4, the male pin 2 is arranged on the male plug assembly 3, and the female pin 1 is arranged on the female plug assembly 4; the male plug component 3 can be plugged on the female plug component 4 to complete the connection of the male needle 2 and the female needle 1.

Furthermore, the male plug component 3 is provided with a convex sliding block 31, and the female plug component 4 is provided with a guide sliding rail 41 extending from the front end to the rear end; when the male plug component 3 is inserted into the female plug component 4, the convex sliding block 31 is connected in the guide sliding rail 41 in a sliding manner; an elastic buckle 42 is arranged at the rear end of the guide slide rail 41, and after the protruding slide block 31 slides to a preset position, the elastic buckle 42 locks the male plug component 3 through the protruding slide block 31. The use of the guiding slide rail 41 and the elastic buckle 42 can ensure the safe and reliable connection of the male and female connectors of the connector, and guide and lock the male and female connectors 3.

It is understood that the connector may be provided with a plurality of sets of multi-level chamber contact modules according to the requirement, and the number of the sets is not limited to that shown in the drawings of the present embodiment.

According to the technical scheme, the male needle 2 or the sealing insulating rod 11 and the four sealing rings formed by the two oil bags form four cavities, the contact spring 193 in the middle cavity is protected, the sealing performance is good, impurities brought in can be filtered, and the reliability of the connector can be effectively guaranteed.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, various changes, substitutions and alterations can be made without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be subject to the claims.

Claims

1. A contact module of a multi-level chamber, characterized in that it comprises: a male needle and a female needle that are matched, the female needle is provided with an insertion hole, and the front end of the insertion hole is inserted with a sealing insulating rod , the female needle includes an oil bag group; a first sealing ring, a second sealing ring, a third sealing ring and a fourth sealing ring are sequentially formed between the oil bag group and the side surface of the sealing 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, and the third sealing ring A third cavity is arranged between the fourth sealing ring and the contact spring 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 sealing The insulating rod is pushed into the rear end of the insertion hole.

2 . The multi-layered chamber contact module according to claim 1 , wherein the female pin is located at the rear end of the fourth sealing ring and is connected to the outside world; the male pin is not inserted into the insertion When the hole is inserted, the front and rear ends of the sealing insulating rod are in contact with the external medium; after the male pin is inserted into the insertion hole, the rear end of the sealing insulating rod is in contact with the external medium.

3 . The contact module of claim 1 , wherein the second cavity and the first cavity are connected to each other, and the conduction port is provided with a filter for filtering impurities. 4 . filter.

4 . The multi-layered chamber contact module according to claim 1 , wherein a fourth cavity is further provided between the oil bag group and the side surface of the sealing insulating rod, and the third cavity is 4 . It is located between the fourth cavity and the second cavity; the fourth cavity and the first cavity are connected to each other, and the fourth cavity is provided with an adsorber for adsorbing impurities .

5 . The multi-level chamber contact module according to claim 4 , wherein the oil bag group comprises a first oil bag and a second oil bag, and the first oil bag is connected to the sealing insulating rod. 6 . The first sealing ring is formed between the side surfaces, and the second sealing ring, the third sealing ring and the fourth sealing ring are formed between the second oil bag and the side surface of the sealing insulating rod.

6 . The multi-layered chamber contact module according to claim 5 , wherein a cage-shaped colloidal frame is arranged between the first oil bag and the second oil bag; wherein, the colloidal frame The inner side of the bell mouth is provided with a bell mouth whose aperture gradually increases from the front end to the rear end, and the rear end of the bell mouth communicates with the first cavity;

The female needle is provided with a front locking sleeve and a rear locking sleeve, the first oil bag is fixed on the colloidal frame through the front locking sleeve, and the second oil bag passes through the rear The locking sleeve is fixed on the colloidal frame.

7 . The contact module of claim 1 , wherein the contact spring is arranged in a stepped hole in the third cavity, and the radial direction of the stepped hole is provided with a plurality of Lumen micropores.

8 . The multi-level chamber contact module according to claim 1 , wherein the rear end of the sealing insulating rod is provided with a spring, and after the male pin is inserted from the front end of the insertion hole, the sealing The insulating rod squeezes and compresses the spring; the female pin is also provided with a guide rail parallel to the axial direction of the insertion hole, and the sealing insulating rod is slidably connected to the guide rail through a slider.

9. A connector, characterized in that it comprises at least one contact module of a multi-level cavity according to any one of claims 1 to 8, comprising a male plug assembly and a female plug assembly, wherein the male pin is arranged on the male plug On the component, the female pin is 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 pin and the female pin.

10 . The connector according to claim 9 , wherein a convex slider is provided on the male plug assembly, and a guide slide rail extending from the front end to the rear end direction is provided on the female plug assembly; the When the male plug assembly is inserted into the female plug assembly, the raised slider is slidably connected to the guide rail; the rear end of the guide rail is provided with an elastic buckle, and the raised slider slides to a predetermined position. After setting the position, the elastic buckle locks the male plug assembly through the protruding slider.