Rotary connector

Abstract

The invention discloses a rotary connector, which comprises a male seat and a female seat, the male seat comprises a male seat shell assembly, a locking assembly and a male seat base, the locking assembly and the male seat base are arranged in an inner cavity of the male seat shell assembly, and the female seat is arranged in the inner cavity of the male seat shell assembly and is in sliding connection with the male seat. According to the rotary connector, redundant gas is stored through the male seat base, and butt joint loosening caused by internal air pressure after the male seat and the female seat are connected is prevented; through the arrangement of the pressing plate, one side of the shell assembly can be sealed; through error compensation of the spring needle assembly, the problem of axial and radial deviation generated during butt joint and rotation of the male seat and the female seat is solved. After the male seat and the female seat are in butt joint, the axial locking and radial rotating functions can be achieved through the locking assembly. Through the arrangement, the male seat and the female seat can stably transmit electric signals while rotating, have a waterproof function, and have the advantages of blind insertion, simple structure, reliable locking and separability.

Description

Technical Field

[0001] This invention belongs to the field of electrical connector technology, and particularly relates to a rotary connector. Background Technology

[0002] Rotary connectors, with their rotating function, are primarily used for electrical connections between rotating and non-rotating objects, and are widely used in test turntables, satellite solar panel drive mechanisms, and space environment testing equipment. Currently, most rotary connectors are integrated, with the male and female connectors fixed to the rotating mechanism and cannot be separated, making them unsuitable for applications requiring detachment and maintenance. Separable rotary connectors cannot simultaneously offer blind mating and waterproofing capabilities. Therefore, a separable, blind-mating, and waterproof rotary connector is needed to meet the requirements of various application scenarios. Summary of the Invention

[0003] To address the aforementioned technical problems, the present invention provides a rotary connector.

[0004] The present invention is achieved through the following technical solutions.

[0005] The present invention provides a rotary connector, including a male connector and a female connector. The male connector includes a male connector housing assembly, a locking assembly, and a male connector base. The locking assembly and the male connector base are disposed in the inner cavity of the male connector housing assembly. The female connector is placed in the inner cavity of the male connector housing assembly and is slidably connected to the male connector.

[0006] Preferably, the female seat includes a pressure block assembly, a female seat outer shell assembly, and a female seat base assembly. The pressure block assembly is connected to one end of the female seat outer shell assembly, and the female seat base assembly is disposed in the inner cavity of the female seat outer shell assembly.

[0007] Preferably, the female seat housing assembly includes a nut, a first sealing ring, a female seat housing, and a second sealing ring. The nut is threaded to the outer wall of the female seat housing. The first sealing ring is disposed in a first mounting groove on the upper part of the outer wall of the female seat housing, and the second sealing ring is disposed in a second mounting groove on the lower part of the inner wall of the female seat housing.

[0008] Preferably, the pressure block assembly includes a pressure block and a grounding pin, wherein the grounding pin is inserted into a mounting hole on the pressure block with an interference fit.

[0009] Preferably, the female base assembly includes a sealing block, a central ring, an outer ring, and a contact pin. The sealing block is disposed in the inner cavity of the female housing, the central ring and the outer ring are coaxially disposed at the bottom of the sealing block, and the contact pin is disposed at the top of the sealing block.

[0010] Preferably, the male seat housing assembly includes a male seat housing and a first sealing element, with one end of the male seat housing connected to the first sealing element.

[0011] Preferably, the male seat shell has an inner cavity at one end, a slot is provided on the male seat shell, the female seat is placed in the inner cavity to form a connection, a locking fitting is provided on the inner wall of the inner cavity, and the male seat base is placed at the bottom of the inner cavity.

[0012] Preferably, the first sealing element is made of vulcanized rubber.

[0013] Preferably, a third sealing ring is provided in the inner cavity of the outer shell, a pressure plate is provided at the bottom of the inner cavity of the outer shell, the pressure plate is connected to the bottom of the male base, and a hanging ear and a groove are provided on the pressure plate, with the hanging ear located at the edge of the pressure plate.

[0014] Preferably, the male base is provided with a cavity, a hole and a spring pin assembly.

[0015] The beneficial effects of this invention are as follows: The rotary connector of this invention stores excess gas in the male base to prevent loosening of the male and female connectors due to internal air pressure after connection. A pressure plate seals one side of the housing assembly. Spring pin assembly error compensation addresses axial and radial misalignment during male-female connector mating and rotation. A locking assembly enables axial locking and radial rotation after mating. The sealing properties of the sealing ring provide waterproofing during mating and separation. These features allow for stable electrical signal transmission and waterproofing during rotation of the male and female connectors, offering advantages such as blind mating, simple structure, reliable locking, and separability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention; Figure 3 This is a schematic diagram of the structure of the third sealing ring of the present invention; Figure 4 This is a schematic diagram of the structure of the pressure plate of the present invention; Figure 5 This is a schematic diagram of the structure of the male seat housing assembly of the present invention; Figure 6 This is an exploded view of the locking assembly of the present invention; Figure 7 This is a schematic diagram of the structure of the male base of the present invention; Figure 8 This is a schematic diagram of the structure of the spring pin assembly of the present invention; Figure 9 This is a schematic diagram of the structure of the pressing block assembly of the present invention; Figure 10 This is a schematic diagram of the structure of the female housing assembly of the present invention; In the diagram: 1-Male connector, 11-Third sealing ring, 12-Pressure plate, 121-Hanging lug, 122-Groove, 13-Male connector housing assembly, 131-Male connector housing, 132-First sealing element, 133-Housing inner cavity, 134-Slot, 14-Locking assembly, 141-Locking ring, 142-Elastic ring, 143-Button, 144-Housing sealing ring, 145-Button sealing ring, 146-Base sealing ring, 147-Button sealing ring, 15-Male connector base, 151-Cavity, 152-Insertion hole, 16 - Spring pin assembly, 161-Pin, 162-Spring, 163-Socket, 164-Claw spring, 2-Female seat, 21-Pressure block assembly, 211-Pressure block, 212-Grounding pin, 213-Mounting hole, 22-Female seat housing assembly, 221-Nut, 222-First sealing ring, 223-Female seat housing, 224-Second sealing ring, 225-First mounting groove, 226-Second mounting groove, 23-Female seat base assembly, 231-Sealing block, 232-Center ring, 233-Outer ring, 234-Contact pin. Detailed Implementation

[0017] The technical solution of the present invention is further described below, but the scope of protection is not limited to what is described.

[0018] Example: like Figures 1 to 10 As shown, a rotary connector includes a male connector 1 and a female connector 2. The male connector 1 includes a male connector housing assembly 13, a locking assembly 14, and a male connector base 15. The locking assembly 14 and the male connector base 15 are disposed in the inner cavity of the male connector housing assembly 13. The female connector 2 is placed in the inner cavity of the male connector housing assembly 13 and is slidably connected to the male connector 1.

[0019] The locking assembly 14 is a second component in a specific embodiment of a rotary electrical connector (application number: 2024222499745). The locking assembly 14 is composed of a locking ring 141, an elastic ring 142, a button 143, a housing sealing ring 144, a mating sealing ring 145, a base sealing ring 146, and a button sealing ring 147.

[0020] The locking ring 141 serves as the support base for the locking assembly 14. The remaining parts are mounted on the locking ring 141. The inner cavity of the locking assembly 14 is fitted with the mating sealing ring 145 and mates with the female housing 223. The lower inner cavity of the locking assembly 14 is used to install the base sealing ring 146 and the male base 15. The upper outer cavity of the locking assembly 14 is used to install the housing sealing ring 144. The middle cavity of the locking assembly 14 is used to install the button sealing ring 147, the elastic ring 142, and the button 143. The elastic ring 142 is a component that provides locking force. The elastic ring 142 is composed of a thin-walled circular ring base and a cantilever locking block. Button 143 is a locking force transmission component. Button 143 transmits the locking force from elastic ring 142 to female housing 223 and locks the female housing 223 in place. Each sealing ring seals the interface of the locking assembly 14.

[0021] The female seat 2 includes a pressure block assembly 21, a female seat outer shell assembly 22, and a female seat base assembly 23. The pressure block assembly 21 is connected to one end of the female seat outer shell assembly 22, and the female seat base assembly 23 is disposed in the inner cavity of the female seat outer shell assembly 22.

[0022] The female base assembly 23 is installed into the inner cavity of the female housing assembly 22. The assembly gap is sealed by the second sealing ring 224. Then, the female base assembly 23 is pressed by the pressure block assembly 21, and sealant is poured to form a sealing block 231, thereby fixing and sealing the female base assembly 23 and the pressure block assembly 21.

[0023] The female seat housing assembly 22 includes a nut 221, a first sealing ring 222, a female seat housing 223, and a second sealing ring 224. The nut 221 is threaded to the outer wall of the female seat housing 223. The first sealing ring 222 is disposed in the first mounting groove 225 on the upper part of the outer wall of the female seat housing 223, and the second sealing ring 224 is disposed in the second mounting groove 226 on the lower part of the inner wall of the female seat housing 223.

[0024] The nut 221 is used to lock the female seat 2 and the external mounting interface, and the first sealing ring 222 seals the external mounting interface. The inner cavity of the female seat housing 223 is used to install the female seat base assembly 23, and the second sealing ring 224 seals the female seat base assembly 23 and the female seat housing 223.

[0025] The pressure block assembly 21 includes a pressure block 211 and a grounding pin 212. The grounding pin 212 is inserted into the mounting hole 213 on the pressure block 211 with an interference fit, which serves to fix the grounding pin 212. The pressure block 211 is interference-fitted with the inner cavity of the female seat housing 22, so that it can press the female seat base assembly 23 tightly into the inner cavity of the female seat housing 223.

[0026] The female base assembly 23 includes a sealing block 231, a central ring 232, an outer ring 233, and a contact pin 234. The sealing block is disposed in the inner cavity of the female housing 223. The central ring 232 and the outer ring 233 are coaxially disposed at the bottom of the sealing block 231, and the contact pin 234 is disposed at the top of the sealing block 231.

[0027] The central ring 232 and the outer ring 233 are fixed by the sealing block 231. The contact pin 234 is connected to the central ring 232 and the outer ring 233. The central ring 232 and the outer ring 233 are in contact with the spring pin assembly 16, thereby establishing electrical contact between the male seat 1 and the female seat 2.

[0028] The male seat housing assembly 13 includes a male seat housing 131 and a first sealing element 132, with one end of the male seat housing 131 connected to the first sealing element 132.

[0029] The male seat shell 131 has an inner cavity 133 at one end, and a slot 134 is provided on the male seat shell 131. The female seat 2 is placed in the inner cavity 133 to form a connection. The locking fitting 14 is provided on the inner wall of the inner cavity 133, and the male seat base 15 is placed at the bottom of the inner cavity 133.

[0030] The first seal 132 is made of vulcanized rubber.

[0031] The inner cavity 133 of the outer casing is used to install the male base 15 and the locking assembly 14. The male casing 131 is vulcanized and sealed with the first sealing element 132, which serves to waterproof and protect the wires.

[0032] A third sealing ring 11 is provided in the inner cavity 133 of the outer shell, and a pressure plate 12 is provided at the bottom of the inner cavity 133 of the outer shell. The pressure plate 12 is connected to the bottom of the male base 15.

[0033] The pressure plate 12 is provided with a hanging ear 121 and a groove 122. The hanging ear 121 is located on the edge of the pressure plate 12, with one hanging ear on each of the two rear sides of the pressure plate 12 and one hanging ear at the front end of the pressure plate 12. The hanging ear 121 is used to cooperate with the slot 134 of the outer shell assembly 13 for fixation, and the groove 122 is used to avoid interference with the tail end of the spring pin assembly 16 and to avoid short circuit.

[0034] The third sealing ring 11 is an irregularly shaped sealing ring, which is assembled in the mating end face groove of the pressure plate 12 and the male housing assembly 13. The third sealing ring 11 can achieve the seal between the pressure plate 12 and the male housing assembly 13; the pressure plate 12 is used to compress the third sealing ring 11 and seal the rear end of the male housing assembly 13.

[0035] The male base 15 is provided with a cavity 151, a socket 152 and a spring pin assembly 16.

[0036] The male base 15 is used to assemble the spring pin assembly 16 and to provide insulation support. The four cavities 151 on the male base 15 are used to accommodate the compressed gas generated after the male and female bases 1 and 2 are connected, so as to prevent the air pressure generated during the connection process from causing the male base 1 and female base 2 to loosen.

[0037] The spring pin assembly 16 is based on a spring pin connector in a specific embodiment of a spring pin connector (application number: 2023117437715). The spring pin assembly 16 consists of a pin 161, a spring 162, a socket 163, and a claw spring 164. It serves as an electrical transmission channel, playing a role in electrical transmission and compensating for the mating tolerance between the male connector 1 and the female connector 2. The socket 163 is inserted into the socket 152 and connected to the male connector base 15. The pin 161 can slide within the socket 152. The male connector 1 and the female connector 2 are connected by contact between the pin 161 and the center ring 232 and the outer ring 233 on the female connector 2. The spring 162 provides pressure on the pin 161 against the center ring 232 and the outer ring 233, so that the pin 161 contacts the center ring 232 and the outer ring 233 to form a connection. This arrangement allows the male connector 1 and the female connector 2 to be blindly inserted and connected, and they can rotate relative to each other and maintain the connection after connection. The front end of the socket 163 is used to fix the claw spring 164, and the tail end of the socket 163 is soldered to the wire. The claw spring 164 is used to establish electrical contact between the socket 163 and the pin 161.

Claims

1. A rotary connector, characterized in that: The device includes a male seat (1) and a female seat (2). The male seat (1) includes a male seat housing assembly (13), a locking assembly (14), and a male seat base (15). The locking assembly (14) and the male seat base (15) are disposed in the inner cavity of the male seat housing assembly (13). The female seat (2) is placed in the inner cavity of the male seat housing assembly (13) and is slidably connected to the male seat (1).

2. A rotary connector as described in claim 1, characterized in that: The female seat (2) includes a pressure block assembly (21), a female seat outer shell assembly (22) and a female seat base assembly (23). The pressure block assembly (21) is connected to one end of the female seat outer shell assembly (22), and the female seat base assembly (23) is disposed in the inner cavity of the female seat outer shell assembly (22).

3. A rotary connector as described in claim 2, characterized in that: The female seat housing assembly (22) includes a nut (221), a first sealing ring (222), a female seat housing (223), and a second sealing ring (224). The nut (221) is threaded to the outer wall of the female seat housing (223). The first sealing ring (222) is located in the first mounting groove (225) on the upper part of the outer wall of the female seat housing (223), and the second sealing ring (224) is located in the second mounting groove (226) on the lower part of the inner wall of the female seat housing (223).

4. A rotary connector as described in claim 2, characterized in that: The pressure block assembly (21) includes a pressure block (211) and a grounding pin (212), wherein the grounding pin (212) is inserted into the mounting hole (213) on the pressure block (211) with an interference fit.

5. A rotary connector as described in claim 2, characterized in that: The female base assembly (23) includes a sealing block (231), a central ring (232), an outer ring (233), and a contact pin (234). The sealing block is disposed in the inner cavity of the female housing (223). The central ring (232) and the outer ring (233) are coaxially disposed at the bottom of the sealing block (231). The contact pin (234) is disposed at the top of the sealing block (231).

6. A rotary connector as described in claim 1, characterized in that: The male seat housing assembly (13) includes a male seat housing (131) and a first seal (132), with one end of the male seat housing (131) connected to the first seal (132).

7. A rotary connector as described in claim 6, characterized in that: The male seat shell (131) has an inner cavity (133) at one end, and a slot (134) is provided on the male seat shell (131). The female seat (2) is placed in the inner cavity (133) to form a connection. The locking fitting (14) is provided on the inner wall of the inner cavity (133), and the male seat base (15) is placed at the bottom of the inner cavity (133).

8. A rotary connector as described in claim 6, characterized in that: The first seal (132) is made of vulcanized rubber.

9. A rotary connector as described in claim 7, characterized in that: A third sealing ring (11) is provided in the inner cavity (133) of the outer shell. A pressure plate (12) is provided at the bottom of the inner cavity (133). The pressure plate (12) is connected to the bottom of the male base (15). A hanging ear (121) and a groove (122) are provided on the pressure plate (12). The hanging ear (121) is provided at the edge of the pressure plate (12).

10. A rotary connector as described in claim 1, characterized in that: The male base (15) is provided with a cavity (151), a socket (152) and a spring pin assembly (16).

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