Screw and quick lock combination for low power supplies

Abstract

The present invention provides a screw-to-quick lock combination structure for a low-power power supply in the field of electrical connections. The screw-to-quick lock combination structure for a low-power power supply includes a socket (100), 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. The socket (100) includes a socket housing (3), a cantilever (101), a protrusion (102), a fixing hole (103), and a connecting hole (104), where the fixing hole (103) is disposed around the periphery of the socket housing (3), the cantilever (101) and the connecting hole (104) are connected to the outer surface of the socket housing (3), the connecting hole (104) is disposed on the side of the cantilever (101), and the cantilever (101) is provided with a protrusion (102). The socket (100) is connected to the motor by the engagement of the socket screw (2) with the fixing hole (103), the quick-lock plug (200) is locked to the socket (100) via the cantilever (101), and the threaded plug (300) is locked to the socket (100) by the engagement of the nut (4) with the connecting hole (104). The socket (100) of the present invention is provided with the cantilever (101) and the nut (4), allowing the socket (100) to be simultaneously screwed and quick-lock mated. The quick-lock plug of the present invention is provided with three protrusions, providing triple protection to prevent the quick-lock plug lock lever from loosening due to vibration while the motor is running.

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 power supplies. [Background technology]

[0002] On the market today, there are two main methods for securing the plug and socket of power connectors used in low-power servo motors. One is the screw locking method, 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 the quick-lock locking method, in which the plug is secured to the socket cantilever with a locking lever. This method is simple and convenient to operate, requires no tools, can be tightened manually, is efficient in assembly, and is not affected by space constraints, but is not as strong as the screw locking method. 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 supplies. [Means for solving the problem]

[0005] The screw and quick-lock combination structure for a low-power power supply provided by the present invention includes a socket, a quick-lock plug, and a screw-type plug, and the quick-lock plug and the screw-type plug are connected to the socket in a one-to-one relationship, the socket includes a socket housing, a cantilever, a protrusion, a fixing hole, and a connecting hole, the fixing holes are respectively arranged around the periphery of the socket housing, the cantilever and the connecting hole are connected to the outer surface of the socket housing, the connecting hole is arranged on a side surface of the cantilever, and the cantilever is provided with a protrusion; The socket is connected to the motor by engagement of the socket screw with the fixing hole, the quick-lock plug is locked to the socket via the cantilever, and the threaded plug is locked to the socket by engagement of the nut with the connecting hole.

[0006] In some embodiments, the socket further includes a head seal ring, a socket power terminal, a socket motor seal ring, a socket brake terminal, and a socket ground terminal, wherein the head seal ring is connected to an outer surface of the socket housing, the socket motor seal ring is connected to an inner surface of the socket housing, and the socket power terminal, the socket brake terminal, and the socket ground terminal are distributed on the inner surface of the socket housing; The socket ground terminal is located on the side of the socket power terminal, and the socket brake terminal is located on the bottom of the socket power terminal.

[0007] In some embodiments, the socket ground terminal spring contacts the surface of the motor.

[0008] In some embodiments, the socket power terminals are hook-and-plate structures and are soldered to the internal circuitry of the motor.

[0009] 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 the side of the quick-lock plug housing, and the groove portion is connected to the cylindrical portion. A hole and a first protrusion are provided on the side 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 and is positioned by engagement between the groove portion and the first protrusion.

[0010] In some embodiments, 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 tightened to the quick lock plug housing by engagement between the second protrusion and the rib.

[0011] In some embodiments, a third protrusion is provided on a side surface of the quick lock plug lock lever, When the quick-lock plug is inserted into the socket, the third protrusion is misaligned with the protrusion to make connection.

[0012] In some embodiments, the plug screws are disposed on either side of the screw plug housing and are connected to the nuts in a one-to-one relationship; The threaded plug is locked into the socket by engagement of the plug threads with a nut.

[0013] In some embodiments, the quick-locking plug and the threaded plug further include a plug core, a plug brake female terminal, a plug power female terminal, a tail nut, a cable exit tab, and a cable exit seal ring; The plug core, plug brake female terminal, and plug power female terminal are connected to the inner surfaces of the quick-lock plug housing and the threaded plug housing in order, and the cable outlet claw is sleeved onto the outer wall of the cable outlet seal ring and connected to the bottom of the quick-lock plug housing and the threaded plug housing via a tail nut.

[0014] In some embodiments, the tail nut, cable exit tab, and cable exit seal ring are hollow. [Effects of the Invention]

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

[0016] The socket of the present invention is equipped with a cantilever and a nut, allowing the socket to be simultaneously screwed and fitted with a quick-lock mechanism. The quick-lock plug of the present invention is equipped with three protrusions, providing triple protection to prevent the quick-lock plug lock lever from loosening due to vibration while the motor is running. [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 of the present invention. [Figure 2] 1 is a structural schematic diagram of a socket according to the present invention; [Figure 3] FIG. 2 is an exploded view of the quick-lock plug of the present invention. [Figure 4] 1 is a schematic diagram of the connection between the quick-lock plug and socket 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] 1 is a structural schematic diagram of a quick-lock plug according to the present invention. [Figure 7] 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 7, the screw / quick lock combination structure for a low-power power supply provided by the present invention includes a socket 100, a quick lock plug 200, and a screw plug 300. The quick lock plug 200 and the screw plug 300 are connected to the socket 100 in a one-to-one relationship.

[0021] As shown in FIGS. 1 and 2, the socket 100 includes a socket housing 3, a cantilever 101, a protrusion 102, a fixing hole 103, and a connecting hole 104. The fixing hole 103 is arranged around the periphery of the socket housing 3, the cantilever 101 and the connecting hole 104 are connected to the outer surface of the socket housing 3, the connecting hole 104 is arranged on the side of the cantilever 101, and the protrusion 102 is provided on the cantilever 101. The socket 100 is connected to a motor by engagement of a socket screw 2 with the fixing hole 103.

[0022] As shown in FIG. 1, the quick-lock plug 200 is locked to the socket 100 via the cantilever 101 , and the threaded plug 300 is locked to the socket 100 by the engagement of the nut 4 with the connecting hole 104 .

[0023] The socket 100 further includes a head seal ring 1, a socket power terminal 5, a socket motor seal ring 6, a socket brake terminal 7, and a socket ground terminal 8. The head seal ring 1 is connected to the outer surface of the socket housing 3, and the socket motor seal ring 6 is connected to the inner surface of the socket housing 3. The socket power terminal 5, socket brake terminal 7, and socket ground terminal 8 are distributed on the inner surface of the socket housing 3. The socket ground terminal 8 is located on the side of the socket power terminal 5, and the socket brake terminal 7 is located at the bottom of the socket power terminal 5. Preferably, the spring of the socket ground terminal 8 contacts the surface of the motor. The socket power terminal 5 has a hook plate structure and is soldered to the internal circuit of the motor.

[0024] More specifically, the socket 100 is designed to be fixed to the motor with screws. The socket 100 is fastened with four socket screws 2 and the motor housing. The socket ground terminal 8 of the socket 100 is a spring-loaded contact, and by tightening the socket screws 2, the spring of the socket ground terminal 8 comes into contact with the surface of the motor, providing ground. The U, V, and W power male pins are designed as a hook-and-plate structure and are soldered to the motor's internal circuit board. Wires are soldered to and drawn out from the socket brake terminal 7, and three socket power terminals 5 and one socket ground terminal 8 are arranged in a row, and two socket brake terminals 7 are also arranged in a row, forming a 4+2 arrangement.

[0025] Example 2 In the second embodiment, based on the first embodiment, the quick-lock plug 200 is triple-protected to prevent the quick-lock plug lock lever 16 from loosening due to vibration.

[0026] 3, the quick-lock plug 200 includes a quick-lock plug housing 15 and a quick-lock plug lock lever 16. The quick-lock plug lock lever 16 is connected to the quick-lock plug housing 15, and the outer wall of the quick-lock plug lock lever 16 is engaged with the inner wall of the cantilever 101.

[0027] 4 to 6, a cylindrical portion 201 and a groove portion 202 are provided on the side surface of the quick lock plug housing 15, 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 15. 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 16, and a second protrusion 205 is provided on the top of the quick lock plug lock lever 16.

[0028] The cylindrical portion 201 is connected to the hole 203, allowing the quick-lock plug locking lever 16 to rotate along the center of the cylindrical portion 201. The quick-lock plug locking lever 16 is positioned by the engagement of the groove 202 with the first protrusion 204. The quick-lock plug locking lever 16 is tightened to the quick-lock plug housing 15 by the engagement of the second protrusion 205 with the rib 207. After tightening, the second protrusion 205 and the rib 207 form a retaining force, preventing the quick-lock plug locking lever 16 from automatically retracting. When the quick-lock plug 200 is inserted into the socket 100, the third protrusion 206 is misaligned with and engages with the protrusion 102, preventing retraction after engagement. This triple protection prevents the quick-lock plug locking lever 16 from loosening due to vibration while the motor is running.

[0029] 3, the quick-lock plug 200 further includes a plug core 9, a plug brake female terminal 10, a plug power female terminal 11, a tail nut 12, a cable exit claw 13, and a cable exit seal ring 14. The plug core 9, the plug brake female terminal 10, and the plug power female terminal 11 are connected to the inner surface of a quick-lock plug housing 15, and the cable exit claw 13 is sleeved onto the outer wall of the cable exit seal ring 14 and connected to the bottom of the quick-lock plug housing 15 via the tail nut 12. The tail nut 12, the cable exit claw 13, and the cable exit seal ring 14 are hollow, which makes it easy to assemble a wiring harness.

[0030] More specifically, the locked and released states of the quick-lock plug lock lever 16 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 16 is simply moved toward the socket 100 until it is parallel to the socket 100, which is extremely quick and convenient.

[0031] Example 3 The third embodiment is based on the first embodiment, and is configured such that the housing of the threaded plug 300 is fixed by a screw.

[0032] Specifically, as shown in Figure 7, the threaded plug 300 includes a threaded plug housing 17 and plug screws 18. The plug screws 18 are arranged on both sides of the threaded plug housing 17 and connected to nuts 4 in a one-to-one relationship. The threaded plug 300 is locked to the socket 100 by the engagement between the plug screws 18 and the nuts 4. The two plug screws 18 are arranged diagonally on the threaded plug housing 17. Protrusions 102 are provided on both sides of the threaded plug housing 17, and the protrusions 102 are engaged with cantilevers 101.

[0033] The threaded plug 300 further includes a plug core 9, a plug brake female terminal 10, a plug power female terminal 11, a tail nut 12, a cable exit claw 13, and a cable exit seal ring 14. The plug core 9, the plug brake female terminal 10, and the plug power female terminal 11 are connected to the inner surface of a threaded plug housing 17, and the cable exit claw 13 is sleeved on the outer wall of the cable exit seal ring 14, and the cable exit claw 13 is connected to the bottom of the threaded plug housing 17 via the tail nut 12. The tail nut 12, the cable exit claw 13, and the cable exit seal ring 14 are hollow, which makes it easy to assemble a wiring harness.

[0034] 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.

[0035] 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]

[0036] 100...socket 101...Cantilever 102...Protrusion 103...fixing hole 104...Connection hole 200...Quick lock plug 201...Cylindrical part 202...Groove 203...holes 204...First protrusion 205...Second protrusion 206...Third prong 207...Rib 300...Threaded plug 1...Head seal ring 2...Socket head screws 3...Socket housing 4... Nut 5...Socket power terminal 6...Socket motor seal ring 7...Socket brake terminal 8...Socket ground terminal 9...Spark plug core 10...Plug brake female terminal 11...Plug power female terminal 12...Tail nut 13...Cable exit hook 14...Cable exit seal ring 15...Quick lock plug housing 16...Quick lock plug lock lever 17...Threaded plug housing 18...Plug screw

Claims

1. A screw and quick-lock combination structure for a low-power power supply, including a socket (100), 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, The socket (100) includes a socket housing (3), a cantilever (101), a protrusion (102), a fixing hole (103), and a connecting hole (104), the fixing holes (103) are arranged around the periphery of the socket housing (3), the cantilever (101) and the connecting hole (104) are connected to the outer surface of the socket housing (3), the connecting hole (104) is arranged on the side of the cantilever (101), and the cantilever (101) is provided with a protrusion (102); The socket (100) is connected to the motor by the engagement of the socket screw (2) with the fixing hole (103), the quick-lock plug (200) is locked to the socket (100) via the cantilever (101), and the threaded plug (300) is locked to the socket (100) by the engagement of the nut (4) with the connecting hole (104). Screw and quick lock combination structure for low power supply.

2. The socket (100) further includes a head seal ring (1), a socket power terminal (5), a socket motor seal ring (6), a socket brake terminal (7), and a socket ground terminal (8), wherein the head seal ring (1) is connected to the outer surface of the socket housing (3), the socket motor seal ring (6) is connected to the inner surface of the socket housing (3), and the socket power terminal (5), the socket brake terminal (7), and the socket ground terminal (8) are distributed on the inner surface of the socket housing (3); The socket ground terminal (8) is arranged on the side of the socket power terminal (5), and the socket brake terminal (7) is arranged on the bottom of the socket power terminal (5).

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

3. 3. The screw and quick lock combination structure for a low-power power supply according to claim 2, wherein the spring of the socket ground terminal (8) contacts the surface of the motor.

4. 3. The screw and quick lock combined structure for a low-power power supply according to claim 2, wherein the socket power terminal (5) has a hook plate structure and is soldered to the internal circuit of the motor.

5. The quick-lock plug (200) includes a quick-lock plug housing (15) and a quick-lock plug lock lever (16), the quick-lock plug lock lever (16) is connected to the quick-lock plug housing (15), and the outer wall of the quick-lock plug lock lever (16) is engaged with the inner wall of the cantilever (101); A cylindrical portion (201) and a groove portion (202) are provided on a side surface of the quick-lock plug housing (15), and the groove portion (202) is connected to the cylindrical portion (201). A hole (203) and a first protrusion (204) are provided on a side surface of the quick-lock plug lock lever (16), respectively. The cylindrical portion (201) is connected to the hole (203), so that the quick-lock plug lock lever (16) rotates along the center of the cylindrical portion (201), and the quick-lock plug lock lever (16) is positioned by the engagement of the groove portion (202) and the first protrusion (204).

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

6. 6. The screw and quick-lock combined structure for a low-power power supply according to claim 5, wherein a rib (207) is provided on an upper portion of the quick-lock plug housing (15), a second protrusion (205) is provided on an upper portion of the quick-lock plug lock lever (16), and the quick-lock plug lock lever (16) is tightened to the quick-lock plug housing (15) by engagement between the second protrusion (205) and the rib (207).

7. A third protrusion (206) is provided on the side of the quick lock plug lock lever (16), When the quick-lock plug (200) is inserted into the socket (100), the third protrusion (206) is misaligned with and connected to the protrusion (102).

6. The screw / quick lock combination structure for a low-power power supply according to claim 5.

8. The threaded plug (300) includes a threaded plug housing (17) and plug screws (18), the plug screws (18) being arranged on both sides of the threaded plug housing (17) and connected to the nuts (4) in a one-to-one relationship; The threaded plug (300) is locked into the socket (100) by the engagement of the plug screw (18) with the nut (4).

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

9. The quick-lock plug (200) and the threaded plug (300) further include a plug core (9), a plug brake female terminal (10), a plug power female terminal (11), a tail nut (12), a cable exit claw (13), and a cable exit seal ring (14); The plug core (9), the plug brake female terminal (10), and the plug power female terminal (11) are connected to the inner surfaces of the quick lock plug housing (15) and the threaded plug housing (17) in order, the cable outlet claw (13) is sleeved on the outer wall of the cable outlet seal ring (14), and the cable outlet claw (13) is connected to the bottom of the quick lock plug housing (15) and the threaded plug housing (17) via the tail nut (12).

9. The screw / quick lock combination structure for a low-power power supply according to claim 5 or 8.

10. 10. The screw and quick lock combination structure for a low-power power supply according to claim 9, wherein the tail nut (12), the cable exit claw (13), and the cable exit seal ring (14) are hollow.

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