A spring connector

Abstract

The present invention discloses a spring connector, comprising a socket and a plug which is crimped onto the socket by means of a snap-on method; the plug comprises a plug housing, an inserting portion which is slidably mounted in the plug housing by means of a compression spring assembly, and a connecting portion which is fixed at the rear end of the inserting portion; the inserting portion comprises a first plug inner core which abuts against the compression spring assembly, a first plug pin insulator which is fixed in the first plug inner core, and a plug pin which is arranged on the first plug pin insulator; the connecting portion comprises a second plug inner core which is fixed to the rear end of the first plug inner core, and a second plug pin insulator which is fixed between the second plug inner cores; the spring connector of the present invention adopts an elastic structure which can be retracted to achieve the effect of blind insertion; at the same time, a printed circuit board is used to achieve signal transfer, so that the signal line after transfer is thinner, and the volume and weight of the motor are reduced; the operation is convenient and quick, and the positioning step is omitted; and large and small ears are used for positioning to prevent mis-installation.

Description

Technical Field

[0001] The invention relates to a connector, in particular to a spring connector. Background Art

[0002] A connector is an electrical connector used to connect two active devices to transmit current or signals. According to the appearance and structure, the existing connectors are divided into circular and rectangular connectors. Due to the different actual application environments, the sizes of the connectors and the inner core plugs of the plugs and sockets are different. The existing connectors installed on large motors often adopt a straight-plug design. Due to the small size of the connector plug and socket, it is difficult to align the pin with the socket, which greatly increases the difficulty of installation.

[0003] At present, motors are assembled by connecting with cables or ordinary connectors. The assembly process is complicated, and the disassembly is time-consuming and difficult, which is not conducive to assembly and maintenance. Summary of the invention

[0004] The present invention aims to solve at least one of the above technical problems to a certain extent. To this end, the purpose of the present invention is to make the motor assembly and separation more convenient and quick.

[0005] A spring connector comprises a socket and a plug crimped onto the socket by a snap-on method; the plug comprises a plug housing, an inserting portion slidably mounted in the plug housing by a compression spring assembly, and a connecting portion fixed at the rear end of the inserting portion; the inserting portion comprises a first plug inner core abutting against the compression spring assembly, a first pin insulator fixed in the first plug inner core, and a pin arranged on the first pin insulator, and the connecting portion comprises a second plug inner core fixed to the rear end of the first plug inner core, and a second pin insulator fixed between the second plug inner cores.

[0006] Furthermore, the compression spring assembly includes a guide pin, and a compression spring nested on the guide pin; two ends of the compression spring are respectively abutted against the guide pin and the inner core of the first plug to limit the left and right directions of the compression spring.

[0007] Furthermore, a first positioning ear is provided on the plug housing near the first plug inner core.

[0008] Furthermore, the second pin insulator is also provided with a first conversion socket for connecting to an external motor.

[0009] Furthermore, the first conversion jack and the pin are welded by a wire.

[0010] Furthermore, a threaded locking cover is installed on the side of the guide pin away from the compression spring, and the threaded locking cover is rotatably installed on the rear end of the plug housing.

[0011] Furthermore, the socket includes a socket housing, a socket core arranged in the socket housing, and a first jack insulator fixed between the socket cores, and also includes a jack arranged on the jack insulator and a socket connecting part arranged at the rear end of the jack.

[0012] Furthermore, the socket connection portion includes a printed circuit board arranged at the rear end of the socket, a double-pass adapter welded to one end of the printed circuit board, and a double-pass socket plugged with the other end of the double-pass adapter.

[0013] Furthermore, the socket connection part also includes a second socket insulator for fixing the two-way adapter and the two-way socket.

[0014] Furthermore, a socket compression spring is provided between the socket shell and the socket inner core, and a second positioning ear is provided on the socket shell.

[0015] Beneficial effects of the present invention:

[0016] The front end of the plug-in portion of the plug of the present invention in a natural state protrudes from the front end surface of the plug housing, the plug-in portion is elastically buckled in the plug housing by a compression spring, the rear end of the compression spring is limited by a guide pin and a threaded locking cover, and the spring connector adopts an elastic structure, which can be retracted and plugged to meet the effect of blind plugging; at the same time, a printed circuit board is used to achieve signal transfer, so that the signal line after transfer is thinner, reducing the size and weight of the motor; the operation is convenient and quick, and the positioning step is omitted; large and small ears are used for positioning to prevent misinstallation; the sealed and waterproof structure can reach IP68. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Attached Figure 1 This is the usage state of a servo motor in embodiment 1 of the present invention. Figure 1 ;

[0019] Attached Figure 2 This is the usage state of a servo motor in embodiment 1 of the present invention. Figure 2 ;

[0020] Attached Figure 3 This is the usage state of a servo motor in embodiment 1 of the present invention. Figure 2 ;

[0021] Attached Figure 4 is a cross-sectional schematic diagram of the plug in Embodiment 1 of the present invention;

[0022] Attached Figure 5 is a schematic diagram of the overall structure of the plug in Embodiment 1 of the present invention;

[0023] Attached Figure 6 It is a cross-sectional schematic diagram of the socket in Embodiment 1 of the present invention.

[0024] As shown in the figure

[0025] 1. Upper shell; 2. Lower shell; 3. Circular boss; 4. Plug; 5. Socket; 41. Plug housing; 42. Compression spring assembly; 43. Insertion portion; 44. Connecting portion; 51. Socket housing; 52. Socket inner core; 53. First jack insulator; 54. Socket; 55. Socket connecting portion; 56. Socket compression spring; 411. First positioning ear; 412. Threaded locking cover; 421. Guide pin; 422. Compression spring; 431. First plug inner core; 432. First pin insulator; 433. Pin; 441. Second plug inner core; 442. Second pin insulator; 443. First conversion jack; 511. Second positioning ear; 551. Printed circuit board; 552. Two-way adapter; 553. Two-way jack; 554. Second jack insulator. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0028] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, inside, outside, center...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0031] Embodiment 1:

[0032] like Figure 1 to Figure 3 A spring connector is shown, comprising an upper shell 1 and a lower shell 2, wherein a circular boss 3 is provided at the center of the lower shell 2, a plug 4 is installed at the outer side of the center of the upper shell 1, and a socket 5 is provided at the outer side of the lower shell 2, wherein the upper shell 1 and the lower shell 2 are cylindrical and the radii of the upper shell 1 and the lower shell 2 are equal, and the distance between the center point of the socket 5 and the center of the upper shell 1 is equal to the distance between the center point of the socket 5 and the center of the lower shell 2.

[0033] Preferably, if Figures 4 to 6 As shown, the plug 4 includes a plug housing 41, an inserting portion 43 slidably installed in the plug housing 41 through a compression spring assembly 42, and a connecting portion 44 fixed at the rear end of the inserting portion 43; the inserting portion 43 includes a first plug inner core 431 abutting against the compression spring assembly 42, a first pin insulator 432 fixed in the first plug inner core 431, and a pin 433 arranged on the first pin insulator 432, and the connecting portion 44 includes a second plug inner core 441 fixed to the rear end of the first plug inner core 431, and a second pin insulator 442 fixed between the second plug inner core 441; the compression spring assembly 42 includes a guide pin 421, and a compression spring 422 nested on the guide pin 421; the two ends of the compression spring 422 abut against the guide pin 421 and the first plug inner core 431 respectively, for limiting the left and right directions of the compression spring 422;

[0034] Preferably, a first positioning ear 411 is further provided on the plug housing 41 near the first plug inner core 431 .

[0035] Preferably, the second pin insulator 442 is also provided with a first conversion socket 443 for connecting to the circuit in the upper shell 1, and the first conversion socket 443 is welded to the pin 433 through a wire; the purpose of providing the first conversion socket 443 is to enable the cable of the plug to adapt to the wiring terminal inside the upper shell 1 at the rear end.

[0036] Preferably, a threaded locking cover 412 is installed on the side of the guide pin 421 away from the compression spring 422 . The threaded locking cover 412 is rotatably installed on the rear end of the plug housing 41 , and the compression spring 422 is crimped into the plug housing 41 through the threaded locking cover 412 .

[0037] Preferably, the socket 5 includes a socket housing 51, a socket core 52 arranged in the socket housing 51, and a first jack insulator 53 fixed between the socket cores 52, and also includes a jack 54 arranged on the first jack insulator 53 and a socket connecting part 55 arranged at the rear end of the jack 54.

[0038] Preferably, the socket connection portion 55 includes a printed circuit board 551 arranged at the rear end of the socket 54, and a two-way adapter 552 welded to one end of the printed circuit board 551, and a two-way socket 553 plugged into the other end of the two-way adapter 552, and the end of the two-way socket 553 away from the two-way adapter 552 is connected to the internal circuit of the lower shell 2; the printed circuit board 551 is mainly used for signal conversion after the socket 54 is connected to the pin 433, and realizes data communication or electrical connection with the lower shell 2 through the two-way socket 553.

[0039] Preferably, the socket connection portion 55 further includes a second socket insulator 554 for fixing the two-way adapter 552 and the two-way socket 553 .

[0040] Preferably, a socket compression spring 56 is further provided between the socket housing 51 and the socket inner core 52 , and a second positioning ear 511 is further provided on the socket housing 51 ; more specifically, early alignment can be performed through the first positioning ear 411 and the second positioning ear 511 .

[0041] What needs to be further explained is the working principle of the present invention:

[0042] First, the plug 4 is installed on the outer side of the upper shell 1, so that the bottom surface of the first positioning ear 411 is flush with the lower end surface of the upper shell 1. After the plug 4 is installed, the socket 5 is installed on the outer side of the lower shell 2 according to the setting direction of the first positioning ear 411 of the plug 4, wherein the upper end surface of the second positioning ear 511 on the socket 5 is flush with the upper end surface of the lower shell 2, and downward pressure is applied to the upper shell 1 at the top end of the upper shell 1 to make the upper shell 1 fit with the lower shell 2. Figure 2 As shown, after the upper shell 1 and the lower shell 2 are matched, the first plug inner core 431 compresses the compression spring 422, so that the insertion portion 43 and the connecting portion 44 move radially along the inner diameter of the plug housing 41, and the connecting portion 44 protrudes along the tail at this time; then a rotation torque is applied to the upper shell 1 along the center of the circular boss 3 in the positive or reverse direction. When the plug 4 rotates to the top of the socket 5, as shown in FIG. Figure 3As shown, the plug 4 is snapped onto the socket 5 by the resilience of the compression spring 422, and then the connecting portion 44 is retracted into the plug 4. Specifically, the outer side surface of the first plug core 431 of the inserting portion 43 is inserted into the gap between the socket core 52 and the first plug hole insulator 53, and the pin 433 is matingly connected with the plug hole 54. The socket compression spring 56 arranged between the socket 5 and the socket core 52 is used to offset the resilience generated by the compression spring 422 of the plug 4, and at the same time provide an axial preload force to make the plug 4 and the socket 5 tighter when mated.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A spring connector, characterized in that: It comprises a socket and a plug which is crimped to the socket by a snap-on method; the plug comprises a plug housing, an inserting portion which is slidably mounted in the plug housing by a compression spring assembly, and a connecting portion which is fixed to the rear end of the inserting portion; the inserting portion comprises a first plug inner core which abuts against the compression spring assembly, a first pin insulator which is fixed in the first plug inner core, and a pin which is arranged on the first pin insulator; the connecting portion comprises a second plug inner core which is fixed to the rear end of the first plug inner core, and a second pin insulator which is fixed between the second plug inner cores; The spring connector is used for a motor, which includes an upper shell and a lower shell. A circular boss is provided at the center of the lower shell, the plug is installed at the outer side of the center of the upper shell, and the socket is provided at the outer side of the lower shell, wherein the upper shell and the lower shell are cylindrical and have the same radius, and the distance between the center point of the socket and the center of the upper shell is the same as the distance between the center point of the lower shell and the center of the upper shell; a first positioning ear is also provided on the plug shell near the first plug core, and the socket includes a socket shell, and the socket shell is also provided with a second positioning ear, the bottom surface of the first positioning ear is flush with the lower end surface of the upper shell, and the upper end surface of the second positioning ear is flush with the upper end surface of the lower shell, and the front end of the plug-in portion protrudes from the front end surface of the plug shell in a natural state.

2. A spring connector according to claim 1, characterized in that: The compression spring assembly includes a guide pin and a compression spring nested on the guide pin; two ends of the compression spring are respectively in contact with the guide pin and the inner core of the first plug to limit the left and right directions of the compression spring.

3. A spring connector according to claim 1, characterized in that: The plug housing is also provided with a first positioning ear near the first plug inner core.

4. A spring connector according to claim 1, characterized in that: The second pin insulator is also provided with a second conversion socket for connecting with an external motor.

5. A spring connector according to claim 4, characterized in that: The second conversion socket and the pin are welded via a wire.

6. A spring connector according to claim 2, characterized in that: A thread locking cover is also installed on the side of the guide pin away from the compression spring, and the thread locking cover is rotatably installed on the rear end of the plug housing.

7. The spring connector according to claim 1, characterized in that: The socket comprises a socket housing, a socket core arranged in the socket housing, and a first jack insulator fixed between the socket cores, and also comprises a jack arranged on the jack insulator and a socket connection part arranged at the rear end of the jack.

8. A spring connector according to claim 7, characterized in that: The socket connection part comprises a printed circuit board arranged at the rear end of the jack, a double-pass adapter welded on one end of the printed circuit board, and a double-pass jack plugged with the other end of the double-pass adapter.

9. A spring connector according to claim 8, characterized in that: The socket connection part also includes a second socket insulator for fixing the two-way adapter and the two-way socket.

10. The spring connector according to claim 7, characterized in that: A socket compression spring is also arranged between the socket shell and the socket inner core, and a second positioning ear is also arranged on the socket shell.

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