Small-space plug-in connector for power signal and mixed signal and plug and socket thereof

Abstract

The utility model belongs to the technical field of connector, specifically relates to a small space push -and -pull formula power signal mixed loading connector, including connector plug, including plug shell, be provided with plug power contact and plug signal contact in the plug shell, the outside of plug shell is provided with the lock cap, the lock cap and plug shell form the insertion clearance between them, be provided with elastic member between the lock cap and plug shell, the outer wall of plug shell is provided with the lock groove, the lock cap can be relative plug shell axial movement, connector socket, including the socket shell, be provided with socket power contact and socket signal contact in the socket shell, the socket shell is along the lateral wall ring -shaped distribution and is provided with the mounting hole, is provided with the lock pearl in the mounting hole, adopt the push -and -pull locking structure through to the structure improvement use, need to adopt the tool to unlock, can realize the anti -theft function.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology, specifically relating to a small-space push-pull power signal mixed connector and its plug and socket. Background Technology

[0002] Connectors are components frequently encountered by electronic engineers. Their function is quite simple: to bridge gaps in circuits or between isolated circuits, allowing current to flow and enabling the circuit to perform its intended function. Currently, connectors are divided into power connectors and signal connectors. Different connectors must be selected for different transmission objects when making wiring connections. However, in actual wiring processes, the same device often needs to connect both power and signal lines. The common practice is to use power connectors for power lines and signal connectors for signal lines. This requires separate connector connection operations for power and signal lines, which is cumbersome and reduces construction efficiency. Furthermore, current power-signal hybrid connectors, due to their large number of pins, large housing, and long connector length, are difficult to use in a limited space to simultaneously perform power and signal functions. Therefore, improvements are urgently needed. Utility Model Content

[0003] The purpose of this invention is to solve the problems existing in the prior art and provide a small-space push-pull power signal mixed connector. This device improves the structure by using a push-pull locking structure, which has a short axial distance of the outer shell and occupies less space compared to ordinary cable housings. This device can only be unlocked by tooling, thus achieving anti-theft function.

[0004] One of the objectives of this utility model is to provide a small-space push-pull power and signal mixed connector, including... A connector socket includes a socket housing, within which a socket power contact and a socket signal contact are disposed; mounting holes are distributed circumferentially along the sidewall of the socket housing, and locking beads are disposed within the mounting holes; A connector plug includes a plug housing, wherein a plug power contact and a plug signal contact are disposed inside the plug housing, a locking cap is disposed on the outside of the plug housing, and a locking groove is disposed on the outer wall of the plug housing; a mating cavity for fitting a socket housing is formed between the locking cap and the plug housing. The locking cap can move relative to the plug housing in the direction of insertion and removal of the headstock, and can lock or unlock the headstock by cooperating with the locking ball and the locking groove.

[0005] As a preferred embodiment, a plug power contact I is provided in the center of the plug housing near the insertion surface, and plug power contact II and plug signal contact are distributed circumferentially around plug power contact I. The socket housing has a power contact I located near the center of the insertion surface, and the power contact I is surrounded by power contact II and signal contact. The socket power contact I is inserted into the plug power contact I; The socket power contact II is plugged into the plug power contact II. The socket signal contact and the plug signal contact are inserted into each other.

[0006] As a preferred embodiment, the plug housing includes a plug fixing plate; a groove I is formed on the end face of the tail end of the plug fixing plate, and a sealing ring I is installed in the groove I to achieve a seal between the plug housing and its fixing panel.

[0007] As a preferred embodiment, the socket housing includes a socket fixing plate, and a groove II is formed on the end face of the socket fixing plate. The groove II is used to install a sealing ring II to achieve a seal between the socket housing and its fixing panel.

[0008] As a preferred embodiment, a countersunk hole is formed on the head end face of the socket fixing plate, the head end of the screw passes through the countersunk hole and is connected to the fixing panel, and the tail end of the screw is submerged in the countersunk hole.

[0009] As a preferred embodiment, a sealing ring III is installed circumferentially inside the cavity of the socket housing. The sealing ring III is used to abut against the head end of the plug housing when the head is inserted.

[0010] As a preferred embodiment, both the plug power contact and the plug signal contact are provided with a flat structure, which is used to mate with the socket of the plug insulator to prevent relative rotation between the two; both the socket power contact and the socket signal contact are provided with a flat structure, which is used to mate with the socket socket insulator to prevent relative rotation between the two.

[0011] As a preferred embodiment, an elastic element is provided between the lock cap and the plug housing. The inner wall of the lock cap is provided with an inner circumferential boss, and the outer wall of the plug housing is provided with an outer circumferential boss. The head end of the elastic element contacts the inner circumferential boss, and the tail end of the elastic element contacts the outer circumferential boss.

[0012] As a preferred embodiment, the socket housing has a through mounting hole on the side wall near its head end. The locking ball is confined within the mounting hole and can move radially within the mounting hole. This allows the locking ball to enter the locking groove when the head seat is engaged and be restricted from disengaging by the locking cap, thereby locking the head seat. After the locking cap is released, the locking ball can disengage from the locking groove, thereby unlocking the head seat.

[0013] As a preferred embodiment, the outer wall of the plug housing is provided with color mark I and / or shape mark I, and the outer wall of the lock cap is provided with color mark II and / or shape mark II at the corresponding position; Color stop point I and color stop point II are set accordingly; Shape identifier I and shape identifier II are set accordingly.

[0014] As a preferred embodiment, in the head seat insertion state, a pre-reserved insertion gap is provided between the head end of the lock cap and the socket fixing plate for the insertion of the unlocking tool. The lock cap is pushed to move along its axial direction by the unlocking ramp of the unlocking tool to achieve head seat unlocking.

[0015] The second objective of this utility model is to provide a connector plug, which is the connector plug described in any of the above-mentioned small space push-pull power signal mixed connectors.

[0016] The third objective of this utility model is to provide a connector socket, which is the connector socket described in any of the above-mentioned small space push-pull power signal mixed connectors.

[0017] Beneficial effects Firstly, this solution optimizes and improves the connector structure, enabling simultaneous power and signal transmission within the connector. Through a rational layout, the power and signal contacts can be arranged to the maximum extent possible; high-current contacts are arranged in a semi-circle at the outermost circumference, while low-current contacts are arranged closer to the center (see...). Figure 2 At point 3), the signal contacts are arranged in a semi-circular pattern on the other side of the semi-circle. This arrangement can effectively avoid the crossing of power and signals, reduce mutual interference, and facilitate the connection of different sections of the wiring harness and integration.

[0018] Secondly, considering the ease of unlocking the head during use, the fixing hole of the socket fixing plate is a countersunk hole structure. The fixing parts (such as screws, bolts, etc.) fix the connector socket to the back of the panel. The head of the fixing part (screw head or bolt head) can be inserted into the countersunk hole, so that it is lower than or flush with the end face of the socket fixing plate, reserving space for the use of the unlocking tool in the future and avoiding the fixing parts (such as screws, bolts, etc.) from obstructing the unlocking tool.

[0019] Thirdly, this solution addresses scenarios where it's inconvenient to operate the plug in small spaces. Unlocking does not require contact with the connector; instead, the unlocking tool is inserted and pressed down at a specific position. The unlocking bevel of the tool pushes the lock cap axially, allowing the lock ball to disengage from the lock groove, thus completing the unlocking operation. Since this solution is suitable for headstock insertion in two confined panel spaces, it is particularly useful when fingers cannot be inserted between two fixed panels, requiring the tool for unlocking. Therefore, this design also provides a degree of anti-theft functionality.

[0020] Fourth, this solution also takes into account the inconvenience of plugging and unplugging the connectors in a small space. To facilitate plugging and unplugging, the locking cap of the connector plug and the socket housing are respectively provided with color marks and shape marks to facilitate corresponding plugging and unplugging. The inner wall of the socket housing is provided with several keyways of different widths, while the outer wall of the plug housing is provided with key blocks that are adapted to its structural shape, thereby further facilitating blind plugging and preventing mis-plugging of the connectors and unplugging. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a perspective view of the connector of this utility model: head and base in the insertion state; Figure 2 This is a schematic diagram showing the distribution of the plug contacts in a connector plug; Figure 3 This is a schematic diagram showing the distribution of the socket contacts in a connector socket; Figure 4 A schematic diagram illustrating the mating of the tooling and connector for unlocking purposes; Figure 5 This is an exploded view of the connector plug; Figure 6 This is an exploded view of the connector socket. Figure 7 A 3D view of the connector socket; Figure 8 This is a schematic diagram showing the sealing of the connector's fixed connection surface and mating surface. Figure 9 This is a structural diagram of the plug contact components; Figure 10 This is a structural diagram of the socket contact components; Figure 11 This is a schematic diagram showing the position of the locking pin when the headstock is engaged. Figure 12 This is a diagram showing the triangular markings before the headstock is inserted. Figure 13 This is a schematic diagram of the color mark points before the headstock is inserted; Figure 14 A diagram illustrating the unlocking direction for the tooling; Figure 15 This is a sectional view of a portion of the structure in the headstock insertion state; Figure 16 This is a cross-sectional view with the headstock separated. Figure 17 This is a cross-sectional view of the headstock in the engaged state. Figure 18 To unlock the 3D model of the tooling; Figure 19 To unlock the side view of the tooling; Marked in the image: 1. Connector plug; 11. Plug housing; 111. Locking groove; 112. Key I; 113. Key II; 114. Plug retaining plate; 115. Plug cylindrical shell; 116. Outer circumferential boss; 117. Annular groove; 12. Plug power contact; 121. Plug power contact I; 122. Plug power contact II; 13. Plug signal contact; 14. Locking cap; 141. Inner circumferential boss; 143. Color mark I; 144. Shape mark I; 145. Guide cavity; 146. Snap-fit ​​gap; 15. Elastic element; 16. Sealing ring I; 17. Plug insulator; 18. Plug cavity; 19. Stop ring; 2. Connector socket; 21. Socket housing; 211. Countersunk hole; 212. Locking ball; 213. Socket mounting plate; 214. Socket cylindrical shell; 215. Keyway I; 216. Keyway II; 217. Mounting hole; 218. Color mark II; 219. Shape mark II; 22. Socket power contact; 221. Socket power contact I; 222. Socket power contact II; 23. Socket signal contact; 24. Sealing ring II; 25. Sealing ring III; 26. Socket insulator; 3. Flat structure; 31. Anti-rotation surface; 4. Unlock the tooling; 41. Unlock the ramp; 42. Unlock the slot; 43. Tail ramp; 5. PSU panel; 6. AAU panel; 7. Screws. Detailed Implementation

[0023] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0024] It should be noted that, unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "a," "an," or "the," and similar words used in this utility model patent application specification and claims do not express a quantity limitation, but rather indicate the presence of at least one. Terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects having the same function.

[0025] As shown in the figure, this embodiment provides a small-space push-pull power signal mixed connector, including a connector plug 1 and a connector socket 2, wherein the connector plug 1 and the connector socket 2 are adapted to be inserted, and both the connector plug 1 and the connector socket 2 have their insertion end as the head end.

[0026] The connector socket 2 includes a socket housing 21, within which a power contact 22 and a signal contact 23 are disposed. The socket housing 21 has mounting holes 217 distributed circumferentially along its sidewalls, and a locking bead 212 is disposed within each mounting hole 217. The locking bead 212 can be disposed within the mounting hole 217 and can move within a certain range radially along the socket housing 217. To prevent the locking bead 212 from dislodging from the mounting hole 217, it is forcibly installed within the mounting hole 217. This arrangement is to allow the locking bead 212 to engage with the locking groove 111 of the connector plug 1 by moving radially along the socket housing 21.

[0027] The connector plug 1 includes a plug housing 11, in which a plug power contact 12 and a plug signal contact 13 are disposed. The plug power contact 12 and the plug signal contact 13 are disposed along the insertion direction. A locking cap 14 is disposed on the outside of the plug housing 11, and a insertion cavity 18 is formed between the locking cap 14 and the plug housing 11. The insertion cavity 18 is disposed in the insertion direction. An elastic member 15 is disposed between the locking cap 14 and the plug housing 11. A locking groove 111 is disposed on the outer wall of the plug housing 11. The locking cap 14 can move relative to the plug housing 11 along its axial direction (insertion direction).

[0028] When the connector head is inserted, the head end of the socket housing 21 is inserted into the insertion cavity 18, and the locking ball 212 enters the locking groove 111. The locking cap 14 restricts the movement of the locking ball 212 to lock the connector head. When the connector head is unlocked, the locking cap 14 moves in the insertion / removal direction to release the restriction on the movement of the locking ball 212, allowing the locking ball 212 to disengage from the locking groove 111 and unlock the connector head. The locking action of the locking cap 14 in the insertion / removal direction is achieved by pushing and pulling the locking cap 14 toward the head end of the connector plug 1. The unlocking action of the locking cap 14 in the insertion / removal direction requires the assistance of a dedicated unlocking fixture 4.

[0029] In a typical embodiment of the present invention, a small-space push-pull power-signal hybrid connector has both signal contacts and power contacts. Four signal contacts are provided, and the current contacts include high-current power contacts and low-current power contacts. Four high-current power contacts and two low-current power contacts are provided, with the low-current power contacts located near the center of the housing. The four high-current power contacts and four signal contacts are distributed around the circumference of the low-current power contacts, maximizing the arrangement of power and signal contacts within a limited space. Preferably, the high-current power contacts are concentrated on one side of the circumference and arranged in a semi-circular pattern, while the low-current power contacts are concentrated on the other side of the circumference and arranged in a semi-circular pattern. The purpose of this arrangement is to arrange as many power and signal contacts as possible within a limited space. The high-current contacts are arranged in a semi-circular pattern on the outermost circumference, the low-current contacts are at the center of the circumference, and the signal contacts are arranged in a semi-circular pattern on the other half of the circumference. This arrangement can effectively avoid the crossing of power and signal contacts, reduce mutual interference, and thus facilitate the connection of different sections of the wiring harness and integration.

[0030] In this embodiment, the connector plug 1 includes a plug housing 11. A plug power contact 12 and a plug signal contact 13 are disposed inside the cavity of the plug housing 11. The length direction of the plug power contact 12 and the plug signal contact 13 is arranged along the axial direction of the plug housing 11. The plug power contact 12 includes plug power contact I 121 and plug power contact II 122. Plug power contact I 121 is a low-current power contact, and plug power contact II 122 is a high-current power contact. Plug power contact I 121 is located near the center of the cavity inside the plug housing 11, while plug power contact II 122 surrounds plug power contact I 121 and is arranged in a semi-circular pattern. The plug signal contact 13 surrounds plug power contact I 121 and is arranged in a semi-circular pattern (with one side also semi-circular).

[0031] In this design, the plug housing 11 includes a plug fixing plate 114 and a plug cylindrical housing 115. The plug cylindrical housing 115 is located on one side of the head end of the plug fixing plate 114. The fixing end face of the plug fixing plate 114 is the tail end face facing away from the plug cylindrical housing 115. A groove I is formed on the fixing end face of the plug fixing plate 114. A sealing ring I16 is installed in the groove I to achieve a seal between the plug housing 11 and its fixing panel. The sealing ring I16 is an O-ring. A locking cap 14 is fitted on the outside of the plug cylindrical housing 115. The locking cap 14 can move axially relative to the plug cylindrical housing 115.

[0032] A plug cavity 18 and a gap for installing the elastic element 15 are formed between the plug shell 115 and the lock cap 14. The plug cavity 18 is used to fit and plug into the socket shell 21. To facilitate fitting and plugging into the socket shell 21, the opening of the plug cavity 18 is provided with a guide section 145, which facilitates the socket shell 21 to smoothly enter the plug cavity 18. The flared bevel of the guide section 145 facilitates the gradual guidance and pushing of the locking ball 212 into the locking groove 111. The gap is located on one side of the tail end of the plug cavity 18, and the gap is a closed space surrounded by the plug shell 115, the lock cap 14 and the boss structure. The elastic element 15 is disposed in this gap, and the outer wall of the plug shell 115 and the inner wall of the lock cap 14 are provided with boss structures, so that both ends of the elastic element 15 are in contact with the boss structures.

[0033] In a typical embodiment of the present invention, an inner circumferential boss 141 is provided on the inner wall of the locking cap 14, and an outer circumferential boss 116 is provided on the outer wall of the plug housing 115. The head end of the elastic member 15 contacts the inner circumferential boss 141, and the tail end of the elastic member 15 contacts the outer circumferential boss 116. The locking cap 14 moves axially toward the tail end of the plug housing 11, which can compress the elastic member 15. After the other external forces on the locking cap 14 are eliminated, the elastic force accumulated by the elastic member 15 can automatically push the locking cap 14 to move axially toward the head end of the plug housing 11 to reset.

[0034] Furthermore, to prevent the lock cap 14 from detaching from the head end of the plug housing 11, the outer wall of the plug housing 11 is provided with an annular groove 117 and a locking groove 111. The annular groove 117 is located on the side of the locking groove 111 on the lock cap 14 near the tail end. A stop ring 19 is installed within the annular groove 117. The stop ring 19 is located on the head end side of the inner circumferential boss 141 and serves to provide axial stopping for the lock cap 14. Through the cooperation between the stop ring 19 and the inner circumferential boss 141, the lock cap 14 is prevented from detaching after installation. The locking groove 111 is located within the insertion cavity 18 and is used to cooperate with the locking ball 212. After the head and socket are inserted, the front end of the socket housing 21 extends into the insertion cavity 18, the locking ball 212 enters the locking groove 111, and the locking cap 14 moves towards the head end of the plug housing 11 under the action of the elastic member 15. At this time, the locking cap 14 is located around the locking ball 212, and the inner wall of the locking cap 14 contacts the locking ball 212 to prevent the locking ball 212 from coming out of the locking groove 111, thereby forming a restriction on the locking ball 212. When unlocking is required, the locking cap 14 can be inserted into the locking gap 146 between the locking cap 14 and the socket fixing plate 213 by one side of the unlocking tool 4, thereby pushing the locking cap 14 towards the tail end of the plug housing 11. When the locking cap 14 is no longer in contact with the locking ball 212 and the restriction on the locking ball 212 is released, the locking ball 212 can move slightly to the outside of the mounting hole 217, and the locking ball 212 comes out from the inside of the locking groove 111, thereby realizing the unlocking of the head and socket.

[0035] In this embodiment, a cavity for mounting the plug power contact 12 and the plug signal contact 13 is formed along the axial direction of the plug housing 11. A plug insulator 17 is also provided within the cavity. A through hole is formed axially on the plug insulator 17, which is used to mount and fix the plug power contact 12 and the plug signal contact 13, providing support and protection for the contacts. Preferably, considering the assembly effect of the plug power contact 12, the plug signal contact 13, and the plug insulator 17, a flat structure 3 is provided on the outer wall of both the plug power contact 12 and the plug signal contact 13. The flat structure 3 has an anti-rotation flat surface 31. In a typical embodiment of this solution, the flat structure 3 is a double-flat structure with two anti-rotation flat surfaces 31. The flat through hole of the plug insulator 17 is adapted to the flat structure 3, thereby preventing the contacts from rotating freely relative to the plug insulator 17. Furthermore, the cooperation between the flat structure 3 and the through hole of the plug insulator 17 also helps to identify the assembly position during the assembly process.

[0036] In this embodiment, the connector socket 2 includes a socket housing 21. A socket power contact 22 and a socket signal contact 23 are disposed inside the cavity of the socket housing 21. The length direction of the socket power contact 22 and the socket signal contact 23 is arranged along the axial direction of the socket housing 21. The socket power contact 22 includes a socket power contact I 221 and a socket power contact II 222. The socket power contact I 221 is a low-current power contact. The socket power contact I 221 is adapted to be inserted into the plug power contact I 121. Source contact II 222 is a high-current power contact. Socket power contact II 222 is adapted to plug power contact II 122. Socket power contact I 221 is located inside the socket housing 21 near the center of the cavity. Socket power contact II 222 surrounds socket power contact I 221 in a semi-circular arrangement. Socket signal contact 23 surrounds socket power contact I 221 in a semi-circular arrangement (with one side also semi-circular), and socket signal contact 23 is adapted to plug power contact 12. Socket power contact II 222 and socket signal contact 23 are arranged circumferentially around socket power contact I 221. Socket power contact I 221 is adapted to plug power contact I 121, and socket power contact II 222 is used to adapt to plug power contact II 122, thereby achieving power current conduction. Socket signal contact 23 is adapted to plug signal contact 13, thereby achieving signal current conduction.

[0037] In this design, the socket housing 21 includes a socket fixing plate 213 and a socket cylindrical shell 214. The socket fixing plate 213 is square, with fixing holes at its four corners. These fixing holes are countersunk holes 211. Screws can be inserted through the countersunk holes 211 to fix the corners of the socket housing 21 to the corresponding panels. The screw heads are screwed into the panels for a fixed connection, and the screw tails are submerged in the countersunk holes 211, ensuring that the screw tails are lower than or at least flush with the surface of the socket fixing plate 213. This provides operating space for the subsequent insertion of the unlocking fixture 4. A groove II is formed on the end face of the tail of the socket fixing plate 213. A sealing ring II 24 is installed in the groove II to achieve a seal between the socket housing 21 and its fixing panel. A socket insulator 26 is provided inside the cavity of the socket housing 21. A flat through hole is formed on the socket insulator 26 along the axial direction. The through hole is used to install and fix the socket power contact 22 and the socket signal contact 23, providing support and protection for the contacts. Preferably, considering the assembly effect of the socket power contact 22, the socket signal contact 23, and the socket insulator 26, a flat structure 3 is provided on the outer wall of both the socket power contact 22 and the socket signal contact 23. The flat structure 3 has an anti-rotation flat surface. In a typical embodiment of this solution, the flat structure 3 is a double-flat structure with two anti-rotation flat surfaces 31. The flat through-hole of the socket insulator 26 is adapted to the flat structure 3, thereby playing an anti-rotation role for the contact, preventing the contact from rotating freely relative to the socket insulator 26. Furthermore, the fit between the flat structure 3 and the through-hole of the socket insulator 26 can also identify the assembly position during the assembly process.

[0038] In this design, the socket housing 214 has several mounting holes 217 distributed circumferentially along its side wall, and a locking ball 212 is installed in the mounting hole 217; the locking ball 212 is a ceramic ball, and the mounting holes 217 are positioned in a centrally symmetrical manner. The locking ball 212 is located in the mounting hole 217 and has a certain clearance for movement. The locking ball 212 can move radially along the socket shell 214. When the head is inserted, the socket shell 214 enters the insertion cavity 18, and the locking ball 212 enters the locking groove 111. As the locking cap 14 moves axially toward the head end of the plug shell 11, the locking cap 14 is located outside the locking ball 212 and restricts the locking ball 212 from coming out of the locking groove 111, preventing the locking ball 212 from coming out of the locking groove 111. When the head is unlocked, the locking cap 14 can be pushed toward the tail end of the plug shell 11 by the unlocking tool 4 (specifically, the unlocking tool 4 is inserted into the locking gap 146 between the end of the locking cap 14 and the socket fixing plate 213 and pressed down in the direction shown in Figure A), so that the locking cap 14 moves axially and releases the external restriction on the locking ball 212. At this time, the locking ball 212 can come out of the locking groove 111, and the head can be further disengaged from each other.

[0039] To facilitate understanding of this solution, the structure of the unlocking fixture 4 is illustrated with an example. The unlocking fixture 4 adopts a plate-like structure. The insertion unlocking end of the unlocking fixture 4 is provided with an unlocking slot 42. The unlocking slot 42 is adapted to the shape of the socket cylinder 214. For example, the inner side of the unlocking slot 42 is an arc-shaped edge, and unlocking ramps 41 are formed on both sides of the unlocking slot 42. The purpose of setting the unlocking ramps 41 is to make it easier for the insertion end of the unlocking fixture 4 to engage in the gap between the locking cap 14 and the socket fixing plate 213, and to gradually push the locking cap 14 towards the tail end of the plug housing 11. Furthermore, a tail ramp 43 can be provided on the inner arc-shaped edge of the unlocking slot 42, which facilitates the engagement of the arc-shaped edge of the unlocking slot 42. It should be noted that the unlocking fixture 4 is not limited to the above structure. The connector plug 1 and connector socket 2 can be unlocked using the unlocking fixture 4. This fixture 4 is useful in situations requiring unlocking within narrow-pitch panels. The unlocking bevel 41 of the fixture 4 gradually pushes the lock cap 14 backward, thus separating the connector plug 1 and connector socket 2. This facilitates unlocking and provides anti-theft functionality. When the connectors are engaged, simply hold a small device with the connector plug 1 and insert it into the connector socket 2 without touching the connector plug 1 itself. This greatly simplifies scenarios where it's inconvenient to operate the plug in small spaces. Unlocking also eliminates the need to touch the connector. Simply press the unlocking fixture 4 at a specific point in the mating position. The unlocking bevel 41 on both sides of the fixture 4 contacts the circumferential surface of the lock cap 41, causing it to retract and complete the unlocking operation. Furthermore, because the device is located between two narrow panels, fingers cannot unlock it; only the unlocking fixture 4 can be used, thus providing anti-theft functionality.

[0040] In this design, both connector plug 1 and connector socket 2 are wired by soldering. Connector plug 1 and connector socket 2 are fixedly installed by screws passing through their flange mounting plates. Connector socket 2 is fixed to AAU panel 6, and connector plug 1 is fixed to PSU panel 5. When in use, the PSU device is held in hand and engaged with the guide device of connector plug 1 and connector socket 2. During engagement, the push-pull locking device (lock cap 14) fixes connector plug 1 and connector socket 2, thereby enabling the current and signal in connector plug 1 to be transmitted from the contact to the inside of AAU device.

[0041] In this solution, the small-space push-pull power and signal hybrid connector is compact in size. Both the connector plug 1 and the connector socket 2 are fixed on the panel, enabling power and signal transmission between devices in tight spaces. (In existing technologies, ordinary connectors typically have one end connected to the panel, with the other end connected to a cable for conduction). This small-space push-pull power and signal hybrid connector uses a push-pull locking structure, resulting in a short axial distance for its housing and occupying less space compared to ordinary cable housings in existing technologies.

[0042] In this invention, in order to achieve a seal between the mating surfaces of the connector plug 1 and the connector socket 2, a rubber sealing ring III 25 is provided inside the cavity of the socket housing 21. The rubber sealing ring III 25 is squeezed by the plug housing 11 of the connector plug 1, so that the connector plug 1 and the connector socket 2 can meet the sealing requirements after mating.

[0043] In this embodiment, the connector plug 1 and connector socket 2 are assembled using a push-pull locking structure. Ceramic balls are installed on the side wall of the socket cylinder 214. When mating, the ceramic balls enter the locking groove to complete the locking engagement. When mating, it is only necessary to push the connector plug 1 or the panel that is mated with the connector plug 1 to achieve assembly, which is convenient to operate.

[0044] In this design, to better ensure the correct alignment of the insertion positions, the outer wall of the plug housing 11 is provided with color mark I113 and / or shape mark I114, and the outer wall of the locking cap 14 is provided with color mark II218 and / or shape mark II219 at corresponding positions; color mark I113 and color mark II218 are correspondingly arranged; shape mark I114 and shape mark II219 are correspondingly arranged. Both the connector plug 1 and connector socket 2 have color marks on their front sides and triangular marks on their other sides, facilitating the alignment during insertion. To ensure accurate insertion, the outer wall of the plug housing 115 near the head end is provided with keys I112 and II113, where key I112 is a large key block and key II113 is a small key block, with the width of key I112 being greater than the width of key II113. The inner wall of the socket housing 214 is provided with keyways I 215 and I 216, where keyway I 215 is a large keyway and corresponds to key I 112 for insertion; keyway I 216 is a small keyway and corresponds to key II 113 for insertion. Therefore, this shape ensures that the insertion direction and position of the connector plug 1 and connector socket 2 correspond. When the connector plug 1 and connector socket 2 are connected to the panel with bolts, they must be fixed in a certain direction. During assembly, the PSU device with the connector plug can be held by hand to achieve blind insertion between the connector heads.

[0045] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A small-space push-pull power and signal mixed connector, characterized in that: include The connector socket (2) includes a socket housing (21), in which a socket power contact (22) and a socket signal contact (23) are provided; the socket housing (21) has mounting holes (217) distributed circumferentially along its side wall, and a locking ball (212) is provided in the mounting holes (217); The connector plug (1) includes a plug housing (11), in which a plug power contact (12) and a plug signal contact (13) are provided. A locking cap (14) is provided on the outside of the plug housing (11), and a locking groove (111) is provided on the outer wall of the plug housing (11). A mating cavity (18) for adapting to a socket housing (21) is formed between the locking cap (14) and the plug housing (11). The locking cap (14) can move relative to the plug housing (11) along the headstock insertion and removal direction, and can lock or unlock the headstock by cooperating with the locking groove (111) through the locking ball (212).

2. The small-space push-pull power and signal mixed connector according to claim 1, characterized in that: The plug housing (11) is provided with a plug power contact I (121) near the center of the plug surface. The plug power contact I (121) is provided with plug power contact II (122) and plug signal contact (13) distributed in a circumferential direction. The socket housing (21) is provided with a socket power contact I (221) near the center of the plug surface. The socket power contact I (221) is provided with socket power contact II (222) and socket signal contact (23) distributed in a circumferential direction. The socket power contact I (221) is inserted into the plug power contact I (121); The socket power contact II (222) is inserted into the plug power contact II (122); The socket signal contact (23) is engaged with the plug signal contact (13).

3. The small-space push-pull power and signal mixed connector according to claim 1, characterized in that: The plug housing (11) includes a plug fixing plate (114); a groove I is formed on the end face of the plug fixing plate (114), and a sealing ring I (16) is installed in the groove I to achieve a seal between the plug housing (11) and its fixing panel.

4. A small-space push-pull power and signal mixed connector according to claim 1, characterized in that: The socket housing (21) includes a socket fixing plate (213), and a groove II is formed on the end face of the socket fixing plate (213). The groove II is used to install a sealing ring II (24) to achieve a seal between the socket housing (21) and its fixing panel.

5. A small-space push-pull power and signal mixed connector according to claim 4, characterized in that: A countersunk hole (211) is formed on the head end face of the socket fixing plate (213). The head end of the screw passes through the countersunk hole (211) and is connected to the fixing panel. The tail end of the screw is inserted into the countersunk hole (211).

6. A small-space push-pull power and signal mixed connector according to claim 4, characterized in that: A sealing ring Ⅲ (25) is installed circumferentially inside the cavity of the socket housing (21). The sealing ring Ⅲ (25) is used to abut against the head end of the plug housing (11) when the head is inserted.

7. A small-space push-pull power and signal mixed connector according to claim 1, characterized in that: The plug power contact (12) and plug signal contact (13) are both provided with a flat structure (3), which is used to cooperate with the socket of the plug insulator (17) to prevent the two from rotating relative to each other; the socket power contact (22) and socket signal contact (23) are both provided with a flat structure (3), which is used to cooperate with the socket insulator (26) to prevent the two from rotating relative to each other.

8. A small-space push-pull power and signal mixed connector according to claim 1, characterized in that: An elastic element (15) is provided between the lock cap (14) and the plug housing (11). The inner wall of the lock cap (14) is provided with an inner circumferential boss (141), and the outer wall of the plug housing (11) is provided with an outer circumferential boss (116). The head end of the elastic element (15) contacts the inner circumferential boss (141), and the tail end of the elastic element (15) contacts the outer circumferential boss (116).

9. A small-space push-pull power and signal mixed connector according to claim 1, characterized in that: The socket housing (21) has a through mounting hole (211) on the side wall near its head end. The locking ball (212) is confined in the mounting hole (211) and can move radially along the socket housing (21) within the mounting hole (211). When the head seat is in the plugged state, the locking ball (212) enters the locking groove (111) and is restricted from falling out by the locking cap (14) to achieve head seat locking. After the restriction of the locking cap (14) is released, the locking ball (212) can fall out from the locking groove (111) to achieve head seat unlocking.

10. A small-space push-pull power and signal mixed connector according to claim 1, characterized in that: The outer wall of the plug housing (11) is provided with color mark I (113) and / or shape mark I (114), and the outer wall of the lock cap (14) is provided with color mark II (218) and / or shape mark II (219) at the corresponding position. Color mark point I (113) and color mark point II (218) are set accordingly; Shape identifier I (114) and shape identifier II (219) are set accordingly.

11. A small-space push-pull power and signal mixed connector according to claim 1, characterized in that: When the head seat is in the inserted state, there is a pre-reserved insertion gap between the head end of the lock cap (14) and the socket fixing plate (213) for the insertion of the unlocking tool (4). The lock cap (14) is pushed to move along its axis by the unlocking slope of the unlocking tool (4) to unlock the head seat.

12. A connector plug (1), characterized in that: It is the connector plug (1) in the small space push-pull power signal mixed connector as described in any one of claims 1-11.

13. A connector socket (2), characterized in that: It is the connector socket (2) in the small space push-pull power signal mixed connector as described in any one of claims 1-11.

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