A multi-directional floating tolerance electrical connector

Abstract

The application relates to a multi-directional floating tolerance electric connector, which comprises a base, a floating cylinder and an electric connector, the electric connector comprises a shell, the surface of the base is provided with a containing cavity, the floating cylinder is supported in the containing cavity by using an axial spring, the floating cylinder is provided with a positioning groove, and the shell is supported in the positioning groove by using a radial coil spring. When an external electric connector is plugged with the electric connector provided by the application, the shell of the electric connector provided by the application can float along the axial direction of the shell under the elastic force of the axial spring, and the floating cylinder can compensate the axial deviation of the plug; under the elastic force of the radial coil spring, the shell can also float along the radial direction, so that the shell can compensate the radial deviation of the plug, thereby increasing the error redundancy when the two connectors are plugged and assembled, the plastic shell of the external electric connector can be tightly plugged with the shell, and the reliability of the electric connection is improved.

Description

Technical Field

[0001] This invention belongs to the field of electrical connector technology, and particularly relates to a multi-directional floating tolerance electrical connector. Background Technology

[0002] Existing electrical connectors mainly achieve circuit connection through the mutual plugging of male plugs and female connectors, while most related male and female plugs on the market are directly plugged in.

[0003] For example, patent document with authorization announcement number "CN111613935B" discloses an electrical connector, a mating electrical connector, and an electrical connector assembly. The mating electrical connector includes a body portion and a first mating portion located at the front end of the body portion. The electrical connector also has a second mating portion and an outer sleeve that extends forward beyond the second mating portion and forms a receiving cavity at the front end of the second mating portion. The body portion includes a first body portion and a second body portion located at the front end of the first body portion and smaller in size than the first body portion. The first mating portion and the second mating portion are mated together, and the second body portion is received in the receiving cavity. The receiving cavity cooperates with the second body portion. This patented technical solution enhances the mechanical connection strength between the electrical connector and the mating electrical connector.

[0004] For example, patent document CN212725868U discloses a high-current blind-mating connector with a contact-type end face. The high-current connector includes a structural housing, contact components, inter-component busbars, and external busbars. The contact components are elastically deformable, and multiple contact components are compactly arranged on the structural housing. Multiple inter-component busbars are arranged along the contact components and connected to contact components of the same power type and polarity, respectively summing the current. Multiple external busbars are staggered and connected to multiple inter-component busbars on the side of the structural housing. The contact components are connected to the external interface of the high-current connector through the inter-component busbars and the external busbars to achieve current transmission. This patented technology solves the problems of miniaturization, floating tolerance limitations, insertion / extraction force limitations, and heat dissipation in multi-variety high-current-throughput power blind-mating connectors within a compact space.

[0005] However, in addition to meeting general performance requirements, electrical connectors must also meet the crucial requirements of good contact, reliable operation, and convenient maintenance. Their reliability directly affects the normal operation of the entire circuit and is related to the safety of the entire host. When there is an error in the assembly position of the connector plug, it can easily lead to errors in the connector insertion, affecting the reliability of the electrical connection. Existing technology usually sets the socket as a floating socket to give the plug and socket sufficient redundancy during insertion, thereby ensuring reliable electrical connection. However, most existing floating sockets are unidirectional floating, which can generally only compensate for unidirectional insertion errors, resulting in a limited range of applications for current shunts or current return circuits. Summary of the Invention

[0006] To address the aforementioned technical problems, this invention provides a multi-directional floating tolerance electrical connector.

[0007] The present invention provides a multi-directional floating tolerance electrical connector, including a base, a floating cylinder and an electrical connector. The electrical connector includes a housing. The surface of the base is provided with a receiving cavity. The floating cylinder is supported in the receiving cavity by an axial spring. The floating cylinder is provided with a positioning groove. The housing is supported in the positioning groove by a radial coil spring.

[0008] The shell is also fixedly connected to the flange, the flange is also fixedly connected to the core cylinder, the core cylinder is also provided with an adjusting hole, the adjusting hole is connected to the guide hole, the floating cylinder is also bonded and fixedly connected to the cover plate, and the flange is clamped between the floating cylinder and the cover plate.

[0009] The surface of the floating cylinder is also provided with raised ribs, which abut against the bottom surface of the flange.

[0010] The floating cylinder is a stepped cylindrical body, and the length direction of the ribs coincides with the radial direction of the floating cylinder.

[0011] The adjusting hole is conical in shape.

[0012] The bottom surface of the accommodating cavity is also fixedly connected to one end of the support column, and the other end of the support column is screwed to the pressure block. The support column also passes through the axial spring and the floating cylinder in sequence from bottom to top, and the floating cylinder is clamped between the axial spring and the pressure block.

[0013] The pressure block can be replaced by bolts.

[0014] The base is also provided with an ear seat on its surface, and the ear seat is also provided with a mounting hole on its surface.

[0015] The surface of the housing is also provided with an annular groove, and at least a portion of the radial coil spring is accommodated in the annular groove.

[0016] The electrical connector also includes multiple limiting rings and multiple wires. The housing has a guide hole and is screwed to a floating shell. The floating shell has a cavity, and the limiting rings are accommodated in the cavity. The limiting rings have limiting holes and conductive springs. The limiting holes communicate with the guide holes, and the conductive springs surround the limiting holes. One end of each wire is electrically connected to the conductive springs, and the other end of each wire extends out of the floating shell.

[0017] The beneficial effects of this invention are as follows: When the external electrical connector is plugged into the electrical connector provided by this invention, under the elastic force of the axial spring, the housing of the electrical connector provided by this invention can float along the axial direction of the housing with the floating cylinder, and the floating cylinder can compensate for the axial deviation of the plug; under the elastic force of the radial coil spring, the housing can also float along its radial direction, and the housing can compensate for the radial deviation of the plug, thereby increasing the error redundancy when the two connectors are plugged into each other, and making the plastic shell of the external electrical connector fit tightly with the housing, thus improving the reliability of the electrical connection. Attached Figure Description

[0018] Figure 1 This is the front view of the present invention; Figure 2 This is the present invention. Figure 1 The main view after removing the floating shell; Figure 3 This is the present invention. Figure 1 The front view after removing the base and floating cylinder; Figure 4 This is an isometric view of the base of the present invention; Figure 5 This is an isometric view of the floating cylinder of the present invention; Figure 6 This is an isometric view of the cover plate of the present invention; Figure 7 This is a front view of the housing, flange, and core cylinder of the present invention; Figure 8 This is an isometric view of the radial coil spring of the present invention; Figure 9 This is an isometric view of the floating shell of the present invention; Figure 10 This is an isometric view of the limiting ring, conductive spring, and wire of the present invention; Figure 11 This is an isometric view of the first embodiment of the insulating spacer of the present invention; Figure 12 This is an isometric view of a second embodiment of the insulating spacer of the present invention; Figure 13 This is an isometric view of the end cap of the present invention.

[0019] In the diagram: 1-Base, 2-Floating cylinder, 3-Shell, 4-Limiting ring, 5-Wire, 6-Accommodation cavity, 7-Axial spring, 11-Positioning groove, 12-Radial coil spring, 13-Guide hole, 14-Floating shell, 15-Shell cavity, 16-Limiting hole, 17-Conductive spring, 18-Flange, 19-Core cylinder, 20-Adjusting hole, 21-Cover plate, 22-Rib, 23-Support column, 24-Pressure block, 25-Ear seat, 26-Mounting hole, 27-Annular groove, 28-End cap, 29-Pin, 30-Insulating sleeve, 31-Interface base plate. Detailed Implementation

[0020] The technical solution of the present invention will be further described below with reference to the accompanying drawings, but the scope of protection claimed is not limited thereto; This invention provides a multi-directional floating tolerance electrical connector, such as... Figures 1 to 13 As shown, it includes a base 1, a floating cylinder 2 and an electrical connector. The electrical connector includes a housing 3. The surface of the base 1 is provided with a receiving cavity 6. The floating cylinder 2 is supported in the receiving cavity 6 by an axial spring 7. The floating cylinder 2 is provided with a positioning groove 11. The housing 3 is supported in the positioning groove 11 by a radial coil spring 12.

[0021] Using the technical solution provided by this invention, when the external electrical connector is plugged into the electrical connector provided by this invention, under the elastic force of the axial spring, the housing of the electrical connector provided by this invention can float along the axial direction of the housing with the floating cylinder, and the floating cylinder can compensate for the axial deviation of the plug; under the elastic force of the radial coil spring, the housing can also float along its radial direction, and the housing can compensate for the radial deviation of the plug, thereby increasing the error redundancy during the plugging and assembly of the two connectors, enabling the plastic shell of the external electrical connector to fit tightly with the housing, and improving the reliability of the electrical connection.

[0022] Specifically, the housing 3 is also fixedly connected to the flange 18, and the flange 18 is also fixedly connected to the core cylinder 19. The core cylinder 19 is also provided with an adjusting hole 20, which communicates with the guide hole 13. The floating cylinder 2 is also bonded and fixedly connected to the cover plate 21, and the flange 18 is clamped between the floating cylinder 2 and the cover plate 21. Preferably, the housing 3, flange 18, and core cylinder 19 are integrally manufactured. The surface of the floating cylinder 2 is also provided with raised ribs 22, which abut against the bottom surface of the flange 18. The floating cylinder 2 is a stepped cylindrical body, and the length direction of the raised ribs 22 coincides with the radial direction of the floating cylinder 2. The adjusting hole 20 is conical in shape. By adopting the technical solution of the present invention, when the plastic shell of the external electrical connector is inserted into the housing, since the adjusting hole 20 is conical in shape, the plug can be aligned with the inner wall of the adjusting hole 20 under the guidance of the core cylinder 19, so that the central axis of the plug coincides with the central axis of the housing, laying the foundation for improving the reliability of electrical connection.

[0023] Furthermore, the bottom surface of the accommodating cavity 6 is fixedly connected to one end of the support column 23, and the other end of the support column 23 is screwed to the pressure block 24. The support column 23 also passes through the axial spring 7 and the floating cylinder 2 in a bottom-to-top sequence, and clamps the floating cylinder 2 between the axial spring 7 and the pressure block 24. Preferably, the pressure block 24 can be replaced by bolts. With the technical solution of the present invention, the support column 23 is used to guide the extension and retraction movement of the axial spring 7, avoiding the axial spring 7 from bearing an off-center load, so that the present invention can operate reliably.

[0024] In addition, the surface of the base 1 is provided with an ear seat 25, and the surface of the ear seat 25 is provided with a mounting hole 26. By adopting the technical solution of the present invention and providing the mounting hole 26, the base 1 and the interface bottom plate 31 can be fixed together, which is beneficial to expanding the application scope of the present invention.

[0025] Specifically, the radial coil spring 12 is made of beryllium copper. The surface of the housing 3 is also provided with an annular groove 27, and at least a portion of the radial coil spring 12 is accommodated within the annular groove 27.

[0026] In addition, the electrical connector also includes multiple limiting rings 4 and multiple wires 5. The housing 3 is provided with a guide hole 13. The housing 3 is also screwed to the floating housing 14. The floating housing 14 is provided with a cavity 15. The limiting rings 4 are accommodated in the cavity 15. The limiting rings 4 are provided with limiting holes 16 and conductive springs 17. The limiting holes 16 are connected to the guide holes 13, and the conductive springs 17 surround the limiting holes 16. One end of the wires 5 is electrically connected to the conductive springs 17, and the other end of the wires 5 extends out of the floating housing 14. The floating housing 14 is also fixed to the end cap 28 with a pin 29, and the end cap 28 covers the opening end of the cavity 15. The multi-directional floating tolerance electrical connector also includes multiple insulating spacers 30. The insulating spacers 30 are accommodated in the cavity 15, and the insulating spacers 30 are clamped between any two adjacent limiting rings 4, between the limiting rings 4 and the inner wall of the cavity 15, and between the limiting rings 4 and the end cap 28.

Claims

1. A multi-directional floating tolerance electrical connector, characterized in that: The device includes a base (1), a floating cylinder (2), and an electrical connector. The electrical connector includes a housing (3). The surface of the base (1) is provided with a receiving cavity (6). The floating cylinder (2) is supported in the receiving cavity (6) by an axial spring (7). The floating cylinder (2) is provided with a positioning groove (11). The housing (3) is supported in the positioning groove (11) by a radial coil spring (12). The electrical connector also includes multiple limiting rings (4) and multiple wires (5). The housing (3) is provided with a guide hole (13). The housing (3) is also screwed to the floating housing (14). The floating housing (14) is provided with a cavity (15). The limiting rings (4) are accommodated in the cavity (15). The limiting rings (4) are provided with a limiting hole (16) and a conductive spring (17). The limiting hole (16) communicates with the guide hole (13). The conductive spring (17) surrounds the limiting hole (16). One end of the wire (5) is electrically connected to the conductive spring (17). The other end of the wire (5) extends out of the floating housing (14). The shell (3) is also fixedly connected to the flange (18), the flange (18) is also fixedly connected to the core cylinder (19), the core cylinder (19) is also provided with an adjusting hole (20), the adjusting hole (20) is connected to the guide hole (13), the floating cylinder (2) is also bonded and fixedly connected to the cover plate (21), and the flange (18) is clamped between the floating cylinder (2) and the cover plate (21); The bottom surface of the accommodating cavity (6) is also fixedly connected to one end of the support column (23), and the other end of the support column (23) is screwed to the pressure block (24). The support column (23) also passes through the axial spring (7) and the floating cylinder (2) in sequence from bottom to top, and the floating cylinder (2) is clamped between the axial spring (7) and the pressure block (24).

2. The multi-directional floating tolerance electrical connector as described in claim 1, characterized in that: The surface of the floating cylinder (2) is also provided with raised ribs (22), which abut against the bottom surface of the flange (18).

3. A multi-directional floating tolerance electrical connector as described in claim 2, characterized in that: The floating cylinder (2) is a stepped cylindrical body, and the length direction of the rib (22) coincides with the radial direction of the floating cylinder (2).

4. A multi-directional floating tolerance electrical connector as described in claim 1, characterized in that: The adjusting hole (20) is conical in shape.

5. A multi-directional floating tolerance electrical connector as described in claim 1, characterized in that: The pressure block (24) is a bolt.

6. A multi-directional floating tolerance electrical connector as described in claim 1, characterized in that: The surface of the base (1) is also provided with an ear seat (25), and the surface of the ear seat (25) is also provided with a mounting hole (26).

7. A multi-directional floating tolerance electrical connector as described in claim 1, characterized in that: The surface of the housing (3) is also provided with an annular groove (27), and at least a portion of the radial coil spring (12) is accommodated in the annular groove (27).

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