Screw and quick lock combination for low power signals

Abstract

The present invention provides a screw-and-quick lock combination structure for low-power signals in the field of electrical connection. The screw-and-quick lock combination structure for low-power signals includes a socket (100), a motor rear cover (2), a quick-lock plug (200), and a threaded plug (300), where the quick-lock plug (200) and the threaded plug (300) are connected to the socket (100) in a one-to-one relationship, and the socket (100) is fixed to the motor rear cover (2). The motor rear cover (2) includes a cover body (21), a fixing seat (22), a cantilever (23), and a through hole (24). The fixing seat (22) is connected to the cover body (21). The socket (100) is fixed in the center of the fixing seat (22) in an inverted position. The fixing seat (22) has cantilevers (23) and through holes (24) on both sides. The quick-lock plug (200) is locked to the socket (100) via the cantilever (23). The threaded plug (300) is locked to the socket (100) by engaging the through hole (24) with a nut (3). In this invention, the use of the cantilever (23) and nut (3) allows the socket (100) to accommodate both the quick-lock plug (200) and the threaded plug (300). The socket (100) is placed inverted on the motor rear cover (2) to form an integrated structure, which is low cost and highly efficient. The use of an integrated socket male terminal eliminates gaps in the head, improving guiding and making the structure more robust. The signal blocking sheet (1) is injection molded onto the motor rear cover (2), making it easy to shield signals between the motor and motor rear cover (2).

Description

[Technical Field]

[0001] The present invention relates to the field of electrical connections, and in particular to a screw-quick lock combination structure for low-power signals. [Background technology]

[0002] On the market today, there are two main methods for securing the plug and socket of signal connectors used in low-power servo motors. One is screw locking, which uses two or four M2 screws to secure the plug and socket. Its advantages are strong and difficult to loosen, but its disadvantages are the need for tools, poor assembly efficiency, and inconvenience in some equipment where space is relatively limited. The other is quick locking, which uses a locking lever to secure the plug to the socket cantilever. This method is simple and convenient, requires no tools, can be tightened manually, is efficient at assembly, and is not affected by space constraints, but is not as strong as screw locking. Each method has its advantages and disadvantages, making it difficult for servo motor manufacturers to choose, and none of them can meet all customer needs.

[0003] A search of prior art patent documents revealed that Chinese Utility Model Patent Publication No. CN216850635U, belonging to the technical field of panel sockets, discloses a stable panel socket that effectively improves the convenience of use and fixing stability of the panel socket. The panel socket uses a conductive sheet and a spring to firmly fix the plug during use, preventing the plug from loosening, resulting in unstable power connection and affecting the use of electrical equipment. The panel socket includes a positioning plate, a threaded hole on one side of the bottom of the positioning plate, a screw threaded into the inner thread of the threaded hole, a socket body engaged with one side of the positioning plate, a fixing plate engaged inside the socket body, a top block fixedly connected to one side of the fixing plate, an insert block fixedly installed on the other side of the fixing plate, a slide groove formed on one side of the insert block, and a slide rod slidably connected inside the slide groove. Therefore, this document belongs to an inventive concept different from the method of the present invention. Summary of the Invention [Problem to be solved by the invention]

[0004] SUMMARY OF THE INVENTION In view of the shortcomings of the prior art, the object of the present invention is to provide a screw and quick lock combination structure for low power signals. [Means for solving the problem]

[0005] The screw and quick-lock combined structure for low-power signals provided by the present invention includes a socket, a motor rear cover, a quick-lock plug, and a screw-type plug, the quick-lock plug and the screw-type plug are respectively connected to the socket in a one-to-one relationship, and the socket is fixed to the motor rear cover; The motor rear cover includes a cover body, a fixing seat, a cantilever, and a through hole. The fixing seat is connected to the cover body. The socket is fixed in the center of the fixing seat in an inverted position. Cantilevers and through holes are provided on both sides of the fixing seat. The quick-lock plug is locked into the socket via the cantilever, and the threaded plug is locked into the socket by engaging the through hole with a nut.

[0006] In some embodiments, a signal blocking sheet is provided on the motor rear cover, one end of the signal blocking sheet is connected to the motor housing, and the other end of the signal blocking sheet is connected to the socket.

[0007] In some embodiments, a fixing hole is provided at one end of the signal blocking sheet, and the fixing hole is connected to a corresponding connecting hole in the motor rear cover. A solder cup is provided at the other end of the signal blocking sheet, and the solder cup is disposed inside the motor rear cover.

[0008] In some embodiments, the blocking terminal wire drawn out from the socket is soldered to the solder cup, the motor rear cover is connected to the motor by screws, which respectively pass through the fixing holes and the connecting holes, and the signal blocking sheet is connected to the motor housing by screws.

[0009] In some embodiments, the socket includes a socket cover plate, a first seal ring, a socket male terminal, a socket housing, and a second seal ring, the socket cover plate is connected to one end of the socket housing, the socket male terminal is connected to the socket cover plate and is disposed within the socket housing; A first seal ring is provided between one end of the socket housing and the fixed seat, and a second seal ring is provided between the other end of the socket housing and the quick-lock plug or the threaded plug.

[0010] In some embodiments, the socket male terminals are stamped from a single plate.

[0011] In some embodiments, the through holes are positioned diagonally across the fixing seat.

[0012] In some embodiments, the quick-lock plug includes a quick-lock plug housing and a quick-lock plug locking lever, the quick-lock plug locking lever is connected to the quick-lock plug housing, and an outer wall of the quick-lock plug locking lever is engaged with an inner wall of the cantilever; a cylindrical portion and a groove portion are provided on a side surface of the quick-lock plug housing, the groove portion is connected to the cylindrical portion; a hole, a first protrusion, and a third protrusion are provided on a side surface of the quick-lock plug lock lever, and the cylindrical portion is connected to the hole, so that the quick-lock plug lock lever rotates along the center of the cylindrical portion; the quick-lock plug lock lever is positioned by engagement between the groove portion and the first protrusion; and the third protrusion is connected to and misaligned with the protrusion portion of the cantilever; A rib is provided on the top of the quick-lock plug housing, and a second protrusion is provided on the top of the quick-lock plug lock lever, and the quick-lock plug lock lever is fastened to the quick-lock plug housing by engagement between the second protrusion and the rib.

[0013] In some embodiments, the threaded plug includes a threaded plug housing and plug screws, the plug screws being disposed on both sides of the threaded plug housing and connected to nuts in a one-to-one relationship; The threaded plug is locked into the socket by engagement of the plug threads with a nut.

[0014] In some embodiments, the quick-locking plug and the threaded plug further include a plug core, a plug female terminal, a tail nut, a cable exit tab, and a cable exit seal ring; The plug core and plug female terminal are connected to the inner surfaces of the quick-lock plug housing and the threaded plug housing in order, the cable outlet claw is sleeved onto the outer wall of the cable outlet seal ring, and the cable outlet claw is connected to the bottom of the quick-lock plug housing and the threaded plug housing through the tail nut. [Effects of the Invention]

[0015] The present invention has the following advantageous effects compared to the prior art.

[0016] In this invention, the use of a cantilever and nut allows the socket to accommodate both quick-lock plugs and screw-type plugs. The socket is placed inverted on the motor rear cover to form an integrated structure, which is low cost and highly efficient. The use of an integrated socket male terminal eliminates gaps in the head, improving guideability and making the structure more robust. A signal-shielding sheet is injected into the motor rear cover and connected to the motor via screws, facilitating signal shielding between the motor and motor rear cover. [Brief explanation of the drawings]

[0017] Other features, objects and advantages of the present invention will become more apparent from the following detailed description of non-limiting examples, given with reference to the drawings, in which: FIG.

[0018] [Figure 1] FIG. 2 is an exploded view of the socket and motor rear cover of the present invention. [Figure 2] 1 is a structural schematic diagram of the socket and motor rear cover of the present invention. [Figure 3] FIG. 2 is a structural schematic diagram of the motor rear cover of the present invention. [Figure 4] FIG. 2 is an exploded view of the quick-lock plug of the present invention. [Figure 5] 1 is a schematic diagram of a partial structure of a quick-lock plug according to the present invention. [Figure 6] FIG. 2 is a side view of the quick-lock plug of the present invention. [Figure 7] 1 is a structural schematic diagram of a quick-lock plug according to the present invention. [Figure 8] FIG. 2 is an exploded view of the threaded plug of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0019] The present invention will be described in detail below with reference to specific examples. The following examples will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention. It should be noted that those skilled in the art may make some modifications and improvements without departing from the concept of the present invention, all of which fall within the scope of protection of the present invention.

[0020] Example 1 As shown in Figures 1 to 8, the screw / quick lock combined structure for low-power signals includes a socket 100, a motor rear cover 2, a quick lock plug 200, and a screw plug 300. The quick lock plug 200 and the screw plug 300 are each connected to the socket 100 in a one-to-one relationship, and the socket 100 is fixed to the motor rear cover 2.

[0021] As shown in FIGS. 1 and 2, the motor rear cover 2 includes a cover body 21, a fixing seat 22, a cantilever 23, and a through-hole 24. The fixing seat 22 is connected to the cover body 21, and the socket 100 is pushed in the opposite direction into the center of the fixing seat 22. The inverted structure of the socket 100 is fixed to the fixing seat 22, thereby securing the socket 100 to the motor rear cover 2. Cantilevers 23 and through-holes 24 are provided on both sides of the fixing seat 22. The quick-lock plug 200 is locked to the socket 100 via the cantilever 23, and the threaded plug 300 is locked to the socket 100 by engaging the through-hole 24 with a nut 3. Preferably, the two through-holes 24 are arranged diagonally across the fixing seat 22.

[0022] As shown in Figures 1 and 2, a signal-blocking sheet 1 is injection-molded into the motor rear cover 2. One end of the signal-blocking sheet 1 has a fixing hole that corresponds to and connects with a connecting hole in the motor rear cover 2. The other end of the signal-blocking sheet 1 has a solder cup 101 that is disposed inside the motor rear cover 2. The interrupting terminal wire drawn out from the socket 100 is soldered to the solder cup 101, and the motor rear cover 2 is connected to the motor with screws that pass through the fixing hole and connecting hole, respectively, and the signal-blocking sheet 1 is connected to the motor housing with the screws.

[0023] The socket 100 includes a socket cover plate 4, a first seal ring 5, socket male terminals 6, a socket housing 7, and a second seal ring 8. The socket cover plate 4 is connected to one end of the socket housing 7, and the socket male terminals 6 are connected to the socket cover plate 4 and disposed within the socket housing 7. Preferably, the socket male terminals 6 are stamped from a single plate, eliminating gaps in the heads and improving guideability, while the integrated structure increases the strength of the terminals. A first seal ring 5 is provided between one end of the socket housing 7 and the fixed seat 22 to effectively prevent water intrusion. A second seal ring 8 is provided between the other end of the socket housing 7 and the quick-lock plug 200 or threaded plug 300 to improve sealing.

[0024] Example 2 The second embodiment is completed based on the first embodiment, and the quick lock plug 200 is fixed and protected by three protrusions, so that it will not come loose due to vibration.

[0025] 4, the quick-lock plug 200 includes a quick-lock plug housing 14 and a quick-lock plug lock lever 15. The quick-lock plug lock lever 15 is connected to the quick-lock plug housing 14, and the outer wall of the quick-lock plug lock lever 15 is engaged with the inner wall of the cantilever 23.

[0026] 5 to 7, a cylindrical portion 201 and a groove portion 202 are provided on the side surface of the quick lock plug housing 14, the groove portion 202 is connected to the cylindrical portion 201, and a rib 207 is provided on the top of the quick lock plug housing 14. A hole 203, a first protrusion 204, and a third protrusion 206 are provided on the side surface of the quick lock plug lock lever 15, and a second protrusion 205 is provided on the top of the quick lock plug lock lever 15.

[0027] The cylindrical portion 201 is fitted into the hole 203, allowing the quick-lock plug locking lever 15 to rotate along the center of the cylindrical portion 201. The quick-lock plug locking lever 15 is positioned by the engagement of the groove 202 with the first protrusion 204. The quick-lock plug locking lever 15 is fastened to the quick-lock plug housing 14 by the engagement of the second protrusion 205 with the rib 207. After fastening, the second protrusion 205 and the rib 207 form a retaining force, preventing the quick-lock plug locking lever 15 from automatically retracting. As shown in FIG. 3, when the quick-lock plug 200 is inserted into the socket 100, the third protrusion 206 engages with the protrusion 231 of the cantilever 23 out of alignment, preventing retraction after engagement. This triple protection prevents the quick-lock plug locking lever 15 from loosening due to vibration while the motor is running.

[0028] The quick-lock plug 200 further includes a plug core 9, a plug female terminal 10, a tail nut 11, a cable exit claw 12, and a cable exit seal ring 13. The plug core 9 and the plug female terminal 10 are connected in order to the inner surface of a quick-lock plug housing 14, the cable exit claw 12 is sleeved onto the outer wall of the cable exit seal ring 13, and the cable exit claw 12 is connected to the bottom of the quick-lock plug housing 14 via the tail nut 11. The tail nut 11, the cable exit claw 12, and the cable exit seal ring 13 are hollow, which makes it easy to assemble a wiring harness.

[0029] More specifically, the locked and released states of the quick-lock plug lock lever 15 are determined by the engagement between the groove 202 and the first protrusion 204. During on-site assembly, the wiring harness of the prepared quick-lock plug 200 is pushed downward in the direction corresponding to the socket 100 to place it in the predetermined position, and then the quick-lock plug lock lever 15 is simply moved toward the socket 100 until it is parallel to the socket 100, which is extremely quick and convenient.

[0030] Example 3 The third embodiment is completed based on the first embodiment, and the threaded plug 300 is fixed to the socket 100 by the engagement between the plug screw 17 and the nut 3.

[0031] Specifically, as shown in Figure 8, the threaded plug 300 includes a threaded plug housing 16 and plug screws 17. The plug screws 17 are arranged on both sides of the threaded plug housing 16 and connected to nuts 3 in a one-to-one relationship. The threaded plug 300 is locked to the socket 100 by the engagement of the plug screws 17 with the nuts 3. The two plug screws 17 are arranged diagonally on the threaded plug housing 16. Bumps are provided on both sides of the threaded plug housing 16, and the bumps are engaged with the cantilevers 23.

[0032] The threaded plug 300 further includes a plug core 9, a plug female terminal 10, a tail nut 11, a cable exit claw 12, and a cable exit seal ring 13. The plug core 9 and the plug female terminal 10 are connected in order to the inner surface of a threaded plug housing 16, and the cable exit claw 12 is sleeved onto the outer wall of the cable exit seal ring 13, and the cable exit claw 12 is connected to the bottom of the threaded plug housing 16 via the tail nut 11. The tail nut 11, the cable exit claw 12, and the cable exit seal ring 13 are hollow, which makes it easy to assemble a wiring harness.

[0033] In describing the present invention, the directions and positional relationships indicated by terms such as "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," and "outside" are based on the directions and positional relationships shown in the accompanying drawings, and are intended to simplify the explanation of the present invention and not to suggest that the devices or elements referred to have a specific direction or are required to be configured and operate in a specific direction, and therefore should not be understood to limit the present invention.

[0034] The above describes specific examples of the present invention. The present invention is not limited to the specific embodiments described above. It should be understood that those skilled in the art can make various changes and modifications within the scope of the claims without affecting the essential content of the present invention. The examples of the present invention and the features of the examples can be arbitrarily combined unless a contradiction arises. [Explanation of symbols]

[0035] 100...socket 200...Quick lock plug 300...Threaded plug 1. Signal blocking sheet 101...Solder cup 2...Motor rear cover 21...Cover body 22...Fixed seat 23...Cantilever 24...Through hole 3... Nut 4...Socket cover plate 5...First seal ring 6...Male socket terminal 7...Socket housing 8...Second seal ring 9...Spark plug core 10...Plug female terminal 11...Tail nut 12...Cable exit hook 13...Cable exit seal ring 14...Quick lock plug housing 15...Quick lock plug lock lever 16...Threaded plug housing 17...Plug screw 201...Cylindrical part 202...Groove 203...holes 204...First protrusion 205...Second protrusion 206...Third prong 207...Rib 231...Protrusion

Claims

1. A screw and quick-lock combination structure for low-power signals, including a socket (100), a motor rear cover (2), a quick-lock plug (200), and a screw-type plug (300), The quick-lock plug (200) and the screw-type plug (300) are connected to the socket (100) in a one-to-one relationship, and the socket (100) is fixed to the motor rear cover (2); The motor rear cover (2) includes a cover body (21), a fixing seat (22), a cantilever (23), and a through hole (24), the fixing seat (22) is connected to the cover body (21), the socket (100) is fixed in the center of the fixing seat (22) in an inverted direction, and the fixing seat (22) has a cantilever (23) and a through hole (24) on both sides thereof, the quick-lock plug (200) is locked to the socket (100) via the cantilever (23), and the threaded plug (300) is locked to the socket (100) by the engagement of the through hole (24) with a nut (3). Screw and quick lock combination structure for low power signals.

2. 2. The screw and quick lock combination structure for low-power signals according to claim 1, wherein a signal blocking sheet (1) is provided on the motor rear cover (2), one end of the signal blocking sheet (1) is connected to the motor housing, and the other end of the signal blocking sheet (1) is connected to the socket (100).

3. 3. The screw and quick lock combined structure for low-power signals according to claim 2, wherein a fixing hole is provided at one end of the signal blocking sheet (1), the fixing hole is connected to a corresponding connection hole of the motor rear cover (2), and a solder cup (101) is provided at the other end of the signal blocking sheet (1), the solder cup (101) is disposed inside the motor rear cover (2).

4. 4. The screw and quick lock combined structure for low-power signals according to claim 3, wherein the interrupting terminal wire drawn out from the socket (100) is soldered to the solder cup (101), the motor rear cover (2) is connected to the motor by screws, the screws passing through the fixing hole and the connecting hole respectively, and the signal interrupting sheet (1) is connected to the motor housing by screws.

5. The socket (100) includes a socket cover plate (4), a first seal ring (5), a socket male terminal (6), a socket housing (7), and a second seal ring (8), the socket cover plate (4) is connected to one end of the socket housing (7), the socket male terminal (6) is connected to the socket cover plate (4) and is disposed within the socket housing (7), The first seal ring (5) is provided between one end of the socket housing (7) and the fixed seat (22), and the second seal ring (8) is provided between the other end of the socket housing (7) and the quick-lock plug (200) or the threaded plug (300).

2. The screw / quick lock combination structure for low-power signals according to claim 1.

6. 6. The screw and quick lock combination structure for low-power signals according to claim 5, wherein the socket male terminal (6) is punched out from a single plate.

7. 6. The screw and quick lock combination structure for low-power signals according to claim 5, wherein the through holes (24) are arranged diagonally across the fixing seat (22).

8. The quick-lock plug (200) includes a quick-lock plug housing (14) and a quick-lock plug lock lever (15), the quick-lock plug lock lever (15) is connected to the quick-lock plug housing (14), and the outer wall of the quick-lock plug lock lever (15) is engaged with the inner wall of the cantilever (23); a cylindrical portion (201) and a groove portion (202) are provided on a side surface of the quick-lock plug housing (14), the groove portion (202) is connected to the cylindrical portion (201), a hole (203), a first protrusion (204), and a third protrusion (206) are provided on a side surface of the quick-lock plug lock lever (15), and the cylindrical portion (201) is connected to the hole (203), so that the quick-lock plug lock lever (15) rotates along the center of the cylindrical portion (201), and the quick-lock plug lock lever (15) is positioned by engagement between the groove portion (202) and the first protrusion (204), and the third protrusion (206) is connected to a protrusion portion (231) of the cantilever (23) in a position offset therefrom; A rib (207) is provided on the top of the quick-lock plug housing (14), and a second protrusion (205) is provided on the top of the quick-lock plug lock lever (15), and the quick-lock plug lock lever (15) is fastened to the quick-lock plug housing (14) by engagement between the second protrusion (205) and the rib (207).

2. The screw / quick lock combination structure for low-power signals according to claim 1.

9. The threaded plug (300) includes a threaded plug housing (16) and plug screws (17), the plug screws (17) being arranged on both sides of the threaded plug housing (16) and connected to the nuts (3) in a one-to-one relationship; The threaded plug (300) is locked into the socket (100) by the engagement of the plug screw (17) with the nut (3).

2. The screw / quick lock combination structure for low-power signals according to claim 1.

10. The quick-lock plug (200) or the threaded plug (300) further includes a plug core (9), a plug female terminal (10), a tail nut (11), a cable exit claw (12), and a cable exit seal ring (13); The plug core (9) and the plug female terminal (10) are connected to the inner surfaces of the quick lock plug housing (14) and the threaded plug housing (16) in order, the cable outlet claw (12) is sleeved on the outer wall of the cable outlet seal ring (13), and the cable outlet claw (12) is connected to the bottom of the quick lock plug housing (14) and the threaded plug housing (16) via the tail nut (11).

10. The screw / quick lock combination structure for low-power signals according to claim 8 or 9.

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