CN112670779A - Small circular miniaturized high-voltage electric connector - Google Patents
Small circular miniaturized high-voltage electric connector Download PDFInfo
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- CN112670779A CN112670779A CN202011336550.2A CN202011336550A CN112670779A CN 112670779 A CN112670779 A CN 112670779A CN 202011336550 A CN202011336550 A CN 202011336550A CN 112670779 A CN112670779 A CN 112670779A
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Abstract
The invention relates to the technical field of electronics, and discloses a small circular miniaturized high-voltage electric connector which comprises a plug and a contact pin, wherein the plug comprises the contact pin, a flexible mounting plate and a plug shell, the flexible mounting plate is positioned in the plug shell, the surface of the plug shell is subjected to activation treatment and then is subjected to sealing bonding with the flexible mounting plate, and the contact pin is arranged on the flexible mounting plate; the socket comprises a jack component and a socket shell, the jack component is arranged in a mounting hole of the socket shell, the top of the jack component is a jack contact element, and the jack contact element is of a round hole two-petal groove structure; the socket is characterized in that the socket shell is provided with a raised cylinder, the soft mounting plate is provided with a round hole corresponding to the cylinder, and the diameter of the cylinder is reduced from the bottom to the top in sequence. The connector provided by the invention can simultaneously transmit 6 paths of high-voltage signals, the single-path transmission voltage can reach 10kVd.c., and the stable transmission of the high-voltage signals can be ensured.
Description
Technical Field
The invention relates to the technical field of electronics, in particular to a small circular miniaturized high-voltage electric connector.
Background
In the jammer system, the installation space of the transmitter (MPM) is limited and the environmental resistance is high. In order to improve the reliability of the entire equipment, it is necessary to use a horizontally mounted circular high-voltage electrical connector which is small in size and has good environmental suitability. At present, no such products exist at home and abroad, and the technical progress and development of a new generation of electronic interference system in China are influenced.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the existing problems, the high-voltage electric signal transmission connector used between a high-voltage power supply module and a power module in a missile-borne or airborne system is provided, the connector adopts a flange mounting mode and a novel low-temperature-resistant material, so that the space of equipment can be saved, and the connector still has good voltage resistance under the environment conditions of high temperature, low temperature and low air pressure for a long time, and is particularly suitable for missile-borne; meanwhile, multiple paths of high-voltage signals can be transmitted, and the single-path transmission voltage can reach 10kVd.c., so that the stable transmission of the high-voltage signals is ensured.
The technical scheme adopted by the invention is as follows: a small circular miniaturized high-voltage electric connector comprises a plug and a socket, wherein the plug comprises a contact pin, a flexible mounting plate and a plug shell, the flexible mounting plate is positioned in the plug shell, the surface of the plug shell is subjected to activation treatment and then is hermetically bonded with the flexible mounting plate, and the contact pin is arranged on the flexible mounting plate;
the socket comprises a jack component and a socket shell, the jack component is arranged in a mounting hole of the socket shell, the top of the jack component is a jack contact element, and the jack contact element is of a round hole two-petal groove structure;
the utility model discloses a socket, including socket shell, flexible mounting panel, round hole, cylindrical diameter, round hole diameter, socket shell is last to have bellied cylinder, the design has the round hole that corresponds with the cylinder on the flexible mounting panel, cylindrical diameter reduces from the bottom to the top in proper order, just the diameter on cylinder top is less than the round hole diameter, and the diameter of bottom is greater than the round hole diameter.
When the connector is plugged, the cylinder is inserted into the round hole, and because the diameter of the top end of the cylinder is smaller than that of the round hole, the diameter of the bottom of the cylinder is larger than that of the round hole, and the material is soft or hard, certain elastic compression can be generated in the axial direction and the radial direction, an interface sealing structure is formed, an air gap passage is blocked, and the connector has good voltage resistance under the sea level condition and the low-temperature and low-pressure condition.
Furthermore, the soft mounting plate is manufactured by adopting low-temperature-resistant silicon rubber mould pressing, has high dielectric strength, excellent corona resistance, high-temperature stability, low-temperature flexibility, compression deformation resistance and extremely low water absorption, and is a good interface sealing material and insulating material.
Furthermore, the inner surface of the flexible mounting plate is a cylindrical surface, two sealing rings which are arranged in an equidistant mode are arranged on the cylindrical surface, the interface is sealed by the aid of the protrusions of the sealing rings, and the flexible mounting plate has a good pressure-resistant sealing effect.
Furthermore, the socket shell and the plug shell are both manufactured and molded by adopting thermoplastic engineering plastics, so that the manufactured shell not only has good mechanical strength and dimensional stability, but also has light weight and high voltage resistance.
Furthermore, the end part of the contact pin is a contact pin contact element, the contact pin contact element and the jack contact element are both made of copper alloy through precision machining, and the surfaces of the contact pin contact element and the jack contact element are plated with hard gold for improving the conductivity and the abrasion resistance.
Furthermore, a sheath with a sealing ring is arranged on the inner side of the tail of the socket shell, the sheath is made of silicon rubber through die pressing, and the sheath made of the silicon rubber is bonded with the high-voltage lead, so that the socket shell has good sealing performance.
Furthermore, the tail part of the contact pin is connected with a high-voltage lead in a compression mode, the surfaces of the tail part of the contact pin and the high-voltage lead are uniformly coated with silicon rubber so as to ensure good voltage resistance, and the high-voltage lead penetrates through the tail part of the plug shell to be connected into the tail part of the contact pin on the flexible mounting plate.
Furthermore, the jack contact piece is in compression joint with a high-voltage wire, the high-voltage wire and the surface of the tail part of the jack component are uniformly coated with silicon rubber so as to ensure good voltage resistance, and the high-voltage wire penetrates through the tail part of the socket shell and then is installed in the mounting hole.
Compared with the prior art, the beneficial effects of adopting the technical scheme are as follows: the invention realizes the normal transmission of the high-voltage electric signal between the high-voltage power module and the power module in the missile-borne and airborne system. The connector can transmit multiple paths of high-voltage signals simultaneously, single-path transmission voltage can reach 10kVd.c., and stable transmission of the high-voltage signals is guaranteed. The circuit of the invention has simple and reliable structure, small volume and easy realization of mass production.
Drawings
Fig. 1 is a schematic view of the plug structure of the connector of the present invention.
Fig. 2 is a schematic view of the receptacle structure of the connector of the present invention.
Reference numerals: 1-pin, 2-flexible mounting plate, 3-plug shell, 4-connecting sleeve, 5-plug baffle, 6-plug nut, 7-plug part high-voltage lead, 8-jack component, 9-fastening nut, 10-socket shell, 11-sheath, 12-socket baffle, 13-socket nut, 14-socket non-high-voltage lead.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The embodiment of the invention provides a small circular miniaturized high-voltage electric connector which comprises a plug and a socket.
As shown in fig. 1, the plug is composed of a contact pin, a flexible mounting plate, a plug housing, a connecting sleeve, a plug baffle, a plug nut, a high-voltage wire and the like.
The flexible mounting plate is positioned in the plug shell, the surface of the plug shell is subjected to activation treatment and then is in sealing bonding with the flexible mounting plate, and the plug shell can reliably wrap the flexible mounting plate; the contact pin and the high-voltage lead are connected together in a compression joint mode; after the surfaces of the high-voltage lead and the tail part of the contact pin are uniformly coated with silicon rubber, the high-voltage lead is arranged in the flexible mounting plate from the tail part of the plug shell, and the high-voltage lead is a lead coated with the silicon rubber and has good adhesion with the adhesive. The soft mounting plate is made by molding silicon rubber, has high dielectric strength, excellent corona resistance, high-temperature stability, low-temperature flexibility, compression deformation resistance and extremely low water absorption, and is a good interface sealing material and insulating material.
The inner surface of the flexible mounting plate is a cylindrical surface, two sealing rings which are arranged with equal distance are arranged on the surface of the cylindrical surface, and the interface is sealed by utilizing the bulges of the sealing rings, so that the flexible mounting plate has a good pressure-resistant sealing effect.
The connecting sleeve is connected with the socket shell through threads to play a role in fixing, and the plug baffle is matched with the soft mounting plate to limit the soft mounting plate.
The plug nut is connected with the plug shell through threads, the plug baffle and the flexible mounting plate are limited in the plug shell, the situation that the plug baffle is stressed and does not fall off is guaranteed, and all parts of the whole plug are integrated.
The plug shell is molded and formed by thermoplastic engineering plastics, so that the plug shell not only has good mechanical strength and dimensional stability, but also has light weight and high voltage resistance.
The contact pin is provided with a contact element on the top, the contact element is made of copper alloy with good elasticity through precision machining, and hard gold is plated on the surface of the contact element, so that the conductivity and the abrasion resistance are improved.
As shown in fig. 2, the socket is composed of a jack assembly, a fastening nut, a socket housing, a sheath, a socket baffle, a socket nut, a high-voltage wire, and the like.
Specifically, in this embodiment, the top of the jack assembly is a jack contact, and after the jack contact is crimped with a high-voltage wire, silicone rubber is uniformly coated on the surface of the tail of the wire and the jack assembly and then the wire and the jack contact are installed in the installation hole of the housing, so as to ensure good voltage resistance.
The fastening nut is positioned on the socket shell and is used for fixing the socket on a panel on which the socket is installed, and the fastening nut is equivalent to a screw nut.
The socket baffle is similar to the plug baffle in function, and the socket baffle is matched with the sheath to fix and limit the sheath.
The socket nut is similar to the plug nut in effect, and the socket nut is connected with the socket shell through threads, so that the baffle and the sheath are limited in the socket shell, the stress of the socket nut is guaranteed not to fall off, and all parts of the whole socket are enabled to be a whole.
The socket shell is made of thermoplastic engineering plastics by die pressing, and has the advantages of good mechanical strength and dimensional stability, light weight and high voltage resistance.
The jack contact piece is of a round hole two-petal groove structure, is made of copper alloy with good elasticity through precision machining, and the surface of the jack contact piece is plated with hard gold.
Because the socket shell is made of hard engineering plastics, the sealing between the engineering plastics and the high-voltage lead wire can be ensured only by activating treatment, in order to realize field assembly, a sheath with a sealing ring is used in the design of the inner side of the tail part of the socket shell, the sheath is made of silicon rubber by mould pressing, and the adhesion sealing property between the sheath made of the silicon rubber and the high-voltage lead wire is better.
The structure form of the inserting and combining interface of the socket and the plug is a round hole and a cylinder, and an interface sealing structure is formed by inserting and combining the round hole and the cylinder.
The socket shell is designed with six convex cylinders, and the soft mounting plate of the plug is designed with round holes corresponding to the cylinders. The cylindrical material is the engineering plastics of stereoplasm, has certain drawing of patterns inclination, and the cylinder diameter is from the bottom to the top level and smooth reduction gradually, and the top diameter is less than the round hole diameter, and the bottom diameter is greater than the round hole diameter, and when cylinder and round hole were inserted, the part that the cylinder diameter is greater than the round hole diameter can form the elastic compression. The round hole is made of soft silicon rubber, and a sealing ring is designed on the inner wall of the round hole and can be elastically compressed to a certain extent.
When the connector is plugged, the cylinder is inserted into the round hole, and the diameter and the length of the cylindrical part are both larger than those of the round hole, and the cylindrical part and the round hole are made of soft and hard materials, so that certain elastic compression can be generated in the axial direction and the radial direction, an interface sealing structure is formed, an air gap passage is blocked, and the connector has good voltage resistance under the sea level condition and the low-temperature and low-pressure condition.
In addition, silicone rubber materials can lose elasticity over time at low temperatures, which can lead to failure of the interfacial seal, given that the material can shrink at low temperatures. Therefore, the design fully considers the compression allowance, the compression amount of the interface is far greater than the shrinkage rate of the material, and meanwhile, the silicon rubber material adopts a novel low-temperature resistant material, such as BS-65 silicon rubber, and the novel material can still keep good elasticity under low-temperature conditions for a long time. Tests prove that the design of the insertion interface has advancement, the insertion interface still has good sealing performance after being kept for more than 4 hours under the condition of low temperature and low pressure, and the voltage resistance meets the requirements.
In the following, a specific implementation example is given.
The maximum external dimension of the plug is as follows: diameter x length is phi 15mm x 20 mm; the maximum external dimension of the socket is as follows: the diameter multiplied by the length multiplied by phi 16mm multiplied by 22.5mm, the structure is more miniaturized; the small circular miniaturized high-voltage electric connector comprises a plug and a socket, and the total length of the plug and socket connectors after being plugged is about 34 mm. The product contact element is 6 cores and arranged in a star shape, the installation mode is vertical installation, nuts are fastened, and the working voltage is 10 kVd.c.; working current 3 ad.c.; the working temperature is-55 ℃ to 125 ℃; dielectric withstand voltage 15 kVd.c.; low gas pressure (1.4 kPa); the contact resistance is less than or equal to 10m omega; the insulation resistance is more than or equal to 5000M omega. The contact pin jack and the lead of the product can be directly installed in the installation plate after being pressed and connected, and the field installation can be realized.
The working principle of the product is as follows: the plug is mechanically connected with the socket to drive the contact elements to be inserted and closed, the contact elements comprise contact pins and jacks, the contact pins are rigid contact elements, the jacks are elastic contact elements, so that the contact elements form elastic contact when being inserted and closed, low contact resistance is generated, and good electrical connection is realized; meanwhile, due to the adoption of a high-performance insulating material and an insertion interface sealing design structure, an air gap passage is effectively blocked, and the aim of high voltage resistance is fulfilled.
The environmental resistance of the product is determined by the airborne environment: the low temperature and low pressure (-55 deg.C @4.4kPa) and the high temperature and low pressure (125 deg.C @4.4kPa) are increased to the missile-borne environment (-55 deg.C @1.4kPa) and (125 deg.C @1.4kPa), and the environmental adaptability is improved.
The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed. Those skilled in the art to which the invention pertains will appreciate that insubstantial changes or modifications can be made without departing from the spirit of the invention as defined by the appended claims.
Claims (9)
1. The utility model provides a small circle miniaturization high voltage electric connector, includes plug and socket, its characterized in that:
the plug comprises a contact pin, a flexible mounting plate and a plug shell, the flexible mounting plate is positioned in the plug shell, the surface of the plug shell is subjected to activation treatment and then is in sealing bonding with the flexible mounting plate, and the contact pin is arranged on the flexible mounting plate;
the socket comprises a jack component and a socket shell, the jack component is arranged in a mounting hole of the socket shell, the top of the jack component is a jack contact element, and the jack contact element is of a round hole two-petal groove structure;
the utility model discloses a socket, including socket shell, flexible mounting panel, round hole, cylindrical diameter, round hole diameter, socket shell is last to have bellied cylinder, the design has the round hole that corresponds with the cylinder on the flexible mounting panel, cylindrical diameter reduces from the bottom to the top in proper order, just the diameter on cylinder top is less than the round hole diameter, and the diameter of bottom is greater than the round hole diameter.
2. A small circular miniaturized high voltage electrical connector according to claim 1, wherein: the flexible mounting plate is made of low-temperature-resistant silicon rubber through die pressing.
3. A small circular miniaturized high voltage electrical connector according to claim 1, wherein: the inner surface of the flexible mounting plate is a cylindrical surface, and two sealing rings which are arranged in an equidistant mode and are convex are arranged on the cylindrical surface.
4. A small circular miniaturized high voltage electrical connector according to claim 2, wherein: the socket shell and the plug shell are both manufactured and formed by adopting thermoplastic engineering plastics.
5. A small circular miniaturized high voltage electrical connector according to claim 1, wherein: the end part of the contact pin is a contact pin contact part, the contact pin contact part is made of copper alloy through precision machining, and the surface of the contact pin contact part is plated with hard gold.
6. A small circular miniaturized high voltage electrical connector according to claim 1, wherein: the jack contact piece is made of copper alloy through precision machining, and hard gold is plated on the surface of the jack contact piece.
7. A small circular miniaturized high voltage electrical connector according to claim 1, wherein: the socket is characterized in that a protective sleeve with a sealing ring is arranged on the inner side of the tail of the socket shell, and the protective sleeve is made of silicon rubber through die pressing.
8. A small circular miniaturized high voltage electrical connector according to claim 1, wherein: the plug is characterized in that a high-voltage lead is connected to the tail of the contact pin in a pressing mode, silicon rubber is uniformly coated on the surfaces of the tail of the contact pin and the high-voltage lead, and the high-voltage lead penetrates through the tail of the plug shell to be connected to the tail of the contact pin on the flexible mounting plate.
9. A small circular miniaturized high voltage electrical connector according to claim 1, wherein: the socket comprises a socket shell and a socket contact piece, wherein the socket contact piece is connected with the socket shell through a plug, the socket contact piece is connected with the socket contact piece in a compression mode through a high-voltage wire, the high-voltage wire and the tail surface of the socket component are uniformly coated with silicon rubber, and the high-voltage wire penetrates through the tail of the socket shell and then is installed in the mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011336550.2A CN112670779A (en) | 2020-11-25 | 2020-11-25 | Small circular miniaturized high-voltage electric connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011336550.2A CN112670779A (en) | 2020-11-25 | 2020-11-25 | Small circular miniaturized high-voltage electric connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112670779A true CN112670779A (en) | 2021-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011336550.2A Pending CN112670779A (en) | 2020-11-25 | 2020-11-25 | Small circular miniaturized high-voltage electric connector |
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| CN (1) | CN112670779A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115117678A (en) * | 2022-06-17 | 2022-09-27 | 合肥博雷电气有限公司 | High voltage connection device and method of use |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820584A (en) * | 2012-08-31 | 2012-12-12 | 中国电子科技集团公司第四十研究所 | Circular high-voltage connector in threaded connection |
| CN103762436A (en) * | 2013-12-27 | 2014-04-30 | 武汉阔翔科技有限公司 | Socket, plugs and pluggable device for connecting high-voltage cables |
| CN105958242A (en) * | 2016-06-30 | 2016-09-21 | 中国电子科技集团公司第四十研究所 | Small multi-core high-voltage connector |
| CN108232707A (en) * | 2017-12-31 | 2018-06-29 | 中国电子科技集团公司第四十研究所 | Minimize rectangle high-voltage electric connector |
-
2020
- 2020-11-25 CN CN202011336550.2A patent/CN112670779A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820584A (en) * | 2012-08-31 | 2012-12-12 | 中国电子科技集团公司第四十研究所 | Circular high-voltage connector in threaded connection |
| CN103762436A (en) * | 2013-12-27 | 2014-04-30 | 武汉阔翔科技有限公司 | Socket, plugs and pluggable device for connecting high-voltage cables |
| CN105958242A (en) * | 2016-06-30 | 2016-09-21 | 中国电子科技集团公司第四十研究所 | Small multi-core high-voltage connector |
| CN108232707A (en) * | 2017-12-31 | 2018-06-29 | 中国电子科技集团公司第四十研究所 | Minimize rectangle high-voltage electric connector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115117678A (en) * | 2022-06-17 | 2022-09-27 | 合肥博雷电气有限公司 | High voltage connection device and method of use |
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Application publication date: 20210416 |
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| RJ01 | Rejection of invention patent application after publication |