Cone-shaped retreating nested double-end electric connector for electric automobile

Abstract

The utility model provides a cone-shaped retreating nested double-end electric connector for an electric automobile. The double-end electric connector for the electric automobile is mainly suitable for being used in the automobile or outside the automobile within the range of alternating current of 50-1000 volts or direct current of 120-1500 volts. The double-end electric connector comprises a conical retreating nested double-end electric connector A part provided with a metal inverted-cone-shaped main body A and a connecting auxiliary piece A, a springback telescopic mechanism, and a conical retreating nested double-end electric connector B part provided with a metal inverted-cone-shaped main body B and a connecting auxiliary piece B, the cone-shaped electric contact surface A on the cone-shaped retreating nested double-end electric connector part A and the cone-shaped electric contact surface B on the cone-shaped retreating nested double-end electric connector part B are mutually nested and wedged under the action of resilience force of the resilience telescopic mechanism so as to be connected and conducted. The cone-shaped electric contact surface A on the cone-shaped retreating nested double-end electric connector part A and the cone-shaped electric contact surface B on the cone-shaped retreating nested double-end electric connector part B are connected and conducted. The utility model has the advantages of simple operation, reasonable structure, standardization, high reliability of electric contact, high safety, vibration resistance, impact resistance, excellent anti-falling performance, capability of preventing accidental electric shock, reduced accident rate and the like.

Description

Technical Field

[0001] The utility model relates to a conical backward stacked double-end electric connector for electric vehicles. The double-end electric connector is mainly suitable for electric vehicles used in or outside the vehicle within the range of 50 to 1000 volts of alternating current or 120 to 1500 volts of direct current. Background Art

[0002] At present, the commonly used double-headed electrical connectors used inside or outside the electric vehicle are of direct plug-in type, that is, plug in - connect, unplug - disconnect; the connector on the double-headed electrical connector used inside or outside the electric vehicle is directly inserted into the socket of the connecting seat of the double-headed electrical connector used inside or outside the electric vehicle according to the operating procedure, or the connector on the double-headed electrical connector used inside or outside the electric vehicle is unplugged from the socket of the connecting seat of the double-headed electrical connector used inside or outside the electric vehicle according to the operating procedure to achieve the purpose of connection or disconnection. This kind of double-headed electrical connector used inside or outside the electric vehicle has poor reliability and safety in the event of unexpected vibration, impact, and falling, and may cause poor contact, heat, and even cause accidents; therefore, it is not satisfactory in practical use. Summary of the invention

[0003] In order to overcome the shortcomings of traditional double-head electrical connectors used inside or outside electric vehicles, such as poor reliability and safety, a conical backward stacked double-head electrical connector for electric vehicles is proposed, which is easy to use, reasonable in structure, safe and reliable, to make up for the current shortcomings.

[0004] To achieve the above-mentioned purpose, the technical solution of the utility model can be implemented as follows: a conical backward-stacked double-headed electrical connector for electric vehicles, characterized in that the double-headed electrical connector includes a conical backward-stacked double-headed electrical connector A part provided with two metal inverted conical bodies A, at least one connecting auxiliary part A, and at least one rebound-type telescopic mechanism and a conical backward-stacked double-headed electrical connector B part provided with two metal inverted conical bodies B, at least one connecting auxiliary part B, the conical backward-stacked double-headed electrical connector B part is provided with a positioning guide flange corresponding to the inverted cone end on the conical backward-stacked double-headed electrical connector A part and can guide its rotation and accurately guide the positioning, and the metal inverted conical body A is provided with a positioning guide flange corresponding to the metal inverted conical body B. The conical electric contact surface B arranged in the position corresponds to the matching conical electric contact surface A, and the number, relative positions and positions of the conical electric contact surfaces A relative to the central axis of the conical backward stacked double-headed electrical connector A part are consistent and matched with the number, relative positions and positions of the conical electric contact surfaces B on the metal inverted cone body B relative to the central axis of the conical backward stacked double-headed electrical connector B part. The conical electric contact surface A on the conical backward stacked double-headed electrical connector A part and the conical electric contact surface B on the conical backward stacked double-headed electrical connector B part are connected and conducted by overlapping and wedging with each other through the action of the rebound force of the rebound telescopic mechanism arranged between the conical backward stacked double-headed electrical connector A part and the conical backward stacked double-headed electrical connector B part.

[0005] Preferably, the resilient telescopic mechanism is composed of a compression spring, a positioning guide sliding spacer plate, and a positioning guide sleeve column.

[0006] Of course, the best solution is that the conical backward stacked double-headed electrical connector A or the conical backward stacked double-headed electrical connector B is provided with two metal inverted cone-shaped bodies and at least one connection auxiliary part. The solution of providing one metal inverted cone-shaped body and at least one connection auxiliary part is also feasible, but the effect is not very ideal; the metal inverted cone-shaped body A or the metal inverted cone-shaped body B can be an independent body made of the same material as the conical electrical contact surface A or the conical electrical contact surface B, or it can be a precious metal contact surface or a precious metal contact surface. The material and the conical electric contact surface A or the conical electric contact surface B are processed into an integrated composite body by inlaying, welding, riveting, brushing, plating, etc.; the metal inverted conical body A or the metal inverted conical body B can be a self-contained independent body, or a combination of the metal inverted conical body extended connector and itself; the metal inverted conical body A or the metal inverted conical body B can be a self-contained independent body, or a combination of the connection auxiliary part A or the connection auxiliary part B and itself; the threaded hole on the connection auxiliary part that matches the cable connector can be a standard component of the gradual pressure cable positioning locking and sealing type---cable connector, or it can be a special component or special component designed according to needs; the rebound telescopic mechanism can be a self-contained independent body, or it can be a combination of its parts and the conical backward stacking double-headed electrical connector A part or the conical backward stacking double-headed electrical connector B part assembled into an integrated body by hand; the compression spring on the rebound telescopic mechanism is preferably able to be positioned on the positioning guide sleeve The spring matching card table and the spring matching card table of the positioning guide sliding spacer plate are used to ensure the matching position of the compression spring; the A part of the conical type backward stacking double-headed electrical connector and the B part of the conical type backward stacking double-headed electrical connector are interchangeable and can be used interchangeably; the inverted cone end on the A part of the conical type backward stacking double-headed electrical connector that can guide its own rotation and accurately guide the positioning and can match each other and the positioning guide flange on the B part of the conical type backward stacking double-headed electrical connector are interchangeable and can be used interchangeably.

[0007] According to the utility model, a cone-shaped backward stacking double-head electrical connector for electric vehicles, its working principle and electrical connection method are to first insert the inverted cone end on the A part (hereinafter referred to as the electrical connector) of the cone-shaped backward stacking double-head electrical connector into the starting end hole of the positioning guide flange on the B part (hereinafter referred to as the electrical connector seat) of the cone-shaped backward stacking double-head electrical connector by hand or auxiliary device, and then apply a top pressure to the electrical connector relative to the electrical connector seat, and through the mutual coordination between the electrical connector and the electrical connector seat, force the positioning guide on the rebound telescopic mechanism to Slide the sliding spacer plate backward to compress the compression spring matched with it and put it in place, then rotate the electric connector with the center of the circle of the electric connector as the axis and put it in place, so that the inverted cone end of the electric connector is rotated along the positioning guide flange on the electric connector seat and aligned to the end of the positioning guide flange. After it is in place, release the top pressure, rely on the rebound force of the rebound telescopic mechanism to force the electric connector to retreat and put it in place, so that the cone-shaped electric contact surface A on the inverted cone end of the electric connector and the cone-shaped electric contact surface B on the end of the positioning guide flange of the electric connector seat overlap and wedge each other to complete the connection and conduction. When removing, press the electric connector forward to put it in place and reversely rotate it back to the starting end hole of the positioning guide flange to pull it out, the method of alignment insertion-→pressing it in place-→rotating it in place-→releasing the top pressure-backward overlapping-wedge conduction, pressing it in place-separation and disconnection-→reverse rotation and return-→rebound and pull it out.

[0008] A conical backward stacked double-head electrical connector for electric vehicles can be made of various materials, such as metals, polymer materials, etc., and can be made through various processes, such as machining, molding, injection molding, die casting, precision casting, etc.

[0009] The utility model has the following main advantages: 1. It is easy to operate, has a reasonable structure, and has safe and reliable electrical contact. In particular, in the case of wedging conduction, the cone-shaped backward stacking double-head electrical connector has a self-locking function and will not be loosened or have poor contact due to external forces such as vibration, impact, and falling (at this time, the cone-shaped electrical contact surfaces A and B are stacked on each other and wedged and conducted, and have excellent impact resistance, vibration resistance, and fall resistance. Only when the human hand or auxiliary device is correctly operated can it be pulled out), and the connection is highly reliable; 2. It can ensure safety, prevent accidental electric shock, and reduce the accident rate; 3. The process is simple and the materials are easily available; 4. It is interchangeable, universal, and can be standardized. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0011] Figure 1 A schematic diagram of a main part section showing the assembly and use of an embodiment of the utility model (a schematic diagram showing a conical backward stacked double-ended electrical connector for an electric vehicle when it is turned on and no external cable is connected);

[0012] Figure 2 for Figure 1 AA cross-sectional view of ;

[0013] Figure 3 for Figure 4 A right side schematic diagram of

[0014] Figure 4 for Figure 1 A schematic cross-sectional view of the main part of the conical type backward stacking double-end electrical connector A (without the connection auxiliary part A-2);

[0015] Figure 5 for Figure 4 Schematic diagram of the left side;

[0016] Figure 6 for Figure 4 A main cross-sectional schematic diagram of a connection auxiliary part A-1 without a metal inverted cone-shaped main body A installed on the surface;

[0017] Figure 7 for Figure 6 BB cross-sectional view;

[0018] Figure 8 for Figure 7 A schematic diagram of the direction of view;

[0019] Fig. 9 for Figure 7 Schematic diagram of the left side;

[0020] Fig.10 for Figure 1 A schematic main cross-sectional view of the connection auxiliary member A-2 of the conical backward stacking double-ended electrical connector A after being rotated 90 degrees;

[0021] Fig.11 for Fig.10 Schematic diagram of the left side;

[0022] Fig.12 for Figure 4 A schematic main cross-sectional view of a metal inverted cone-shaped main body A;

[0023] Fig.13 for Fig.12 A top view schematic diagram of

[0024] Fig.14 for Fig.13 Schematic diagram of the left side;

[0025] Fig.15 for Figure 1 A main cross-sectional schematic diagram of a sealing ring with a sealing ring on the top;

[0026] Fig.16 for Fig.15 Schematic diagram of the left side;

[0027] Fig.17 for Fig.18 A right side schematic diagram of

[0028] Fig.18 for Figure 1 A schematic diagram of a main partial cross-section of the cone-shaped backward stacked double-ended electrical connector B (when no external cable is connected);

[0029] Fig.19 for Fig. 20 A right side schematic diagram of

[0030] Fig. 20 for Fig.18 A main cross-sectional schematic diagram of a connection auxiliary member B-2 on the top;

[0031] Fig.21 for Fig. 20 Schematic diagram of the left side;

[0032] Fig. 22 for Fig.24 A right side schematic diagram of

[0033] Fig.23 for Fig.24 A schematic cross-sectional view of the CC section;

[0034] Fig.24 for Fig.18 A main cross-sectional schematic diagram of a connection auxiliary part B-1 on the top;

[0035] Fig.25 for Fig.24 A schematic cross-sectional view of DD section;

[0036] Fig.26 for Fig.24 Schematic diagram of the left side;

[0037] Fig. 27 for Fig.18 The main cross-sectional view of the guide positioning auxiliary part B on the Fig.28 EE rotation section diagram;

[0038] Fig.28 for Fig. 27 A right side schematic diagram of

[0039] Fig.29 for Fig.30 A right side schematic diagram of

[0040] Fig.30 for Fig.18 A schematic main cross-sectional view of the metal inverted cone body B without the metal inverted cone body B extended connector installed;

[0041] Fig.31 for Fig.30 Schematic diagram of the left side;

[0042] Fig.32 for Fig.33 FF cross-sectional diagram;

[0043] Fig.33 for Fig.29 A schematic diagram of the direction of view;

[0044] Fig.34 for Fig.18 A schematic front view of an extended connector of a metal inverted cone-shaped body B that can be connected to the metal inverted cone-shaped body B as a whole;

[0045] Fig.35 for Fig.34 Schematic diagram of the left side;

[0046] Fig.36 for Fig.18 A schematic front view of a positioning guide sliding spacer plate on the top;

[0047] Fig.37 for Fig.36 Schematic diagram of the left side;

[0048] Fig.38 for Fig.39 A right side schematic diagram of

[0049] Fig.39 for Fig.18 A schematic diagram of the main half section of the positioning guide sleeve on. DETAILED DESCRIPTION

[0050] Please refer to Figures 1 to 39First, according to the required specifications, shape, size, and appearance design, a metal inverted cone-shaped body A (8) is processed in position, with one end provided with an inverted cone end (12), a cone-shaped electric contact surface A (13), a positioning truncated platform (47) and a connecting bolt matching hole (23) in the middle, and the other end provided with a threaded connection end (19), and a pull-out spacing plate (31), a connecting bolt through hole (22), an assembly connecting bolt matching hole (30), a positioning guide ring sleeve column (38), a matching positioning boss (46), a positioning hole (47), and a threaded connection end (19) are processed in position. 8), a connection auxiliary part A-1 (9) is processed to form a connection auxiliary part A-2 (10) having an assembly connection bolt through hole (29) and an internal thread (41) matching the cable connector, a rebound telescopic mechanism (2) composed of a positioning guide sliding spacer plate (5), a positioning guide sleeve column (7) and a compression spring (6), a positioning guide flange (15), a positioning guide flange end (17), a conical electric contact surface B (18) and an assembly process positioning boss (28), an internal thread (54) are processed to form a connection auxiliary part A-2 (10) having an assembly connection bolt through hole (29) and an internal thread (41) matching the cable connector, a positioning guide sliding spacer plate (5), a positioning guide sleeve column (7) and a compression spring (6), and a positioning guide flange (15), a positioning guide flange end (17), a conical electric contact surface B (18) and an assembly process positioning boss (28), an internal thread (54) are processed to form a connection auxiliary part A-1 (9) of the embodiment of the present invention. The metal inverted cone-shaped body B (14) is processed to have a threaded connection end (19) at one end and an external thread (50) matching with the metal inverted cone-shaped body B at the other end, and the metal inverted cone-shaped body B elongated connector (32) is processed to have an assembly locking bolt matching hole (26), a claw positioning matching locking groove (35), an assembly process guide locking groove (37), a reinforcing rib (43), a matching positioning groove (45), and a positioning guide flange (15) matching with the inverted cone end head, and a positioning guide flange starting point. A connecting auxiliary part B-1 (20) with a starting hole (16) and a positioning guide flange end (17) is processed to form a connecting auxiliary part B-2 (11) with an assembly locking bolt through hole (25), a mounting panel (39), a mounting panel positioning hole (40), a reinforcing rib (43), and a positioning hole (48); a guiding positioning auxiliary part B (27) with a positioning matching locking claw (36), a matching positioning boss (46), and a positioning socket (49) is processed to form a sealing ring (51), a sealing ring (52), etc.;Then, one end of the inverted cone end of the two metal inverted cone wing bodies A is inserted through the positioning holes on the connection auxiliary component A-1 and into place. [At this time, the positioning cones (47) on the two metal inverted cone bodies A have respectively entered and locked in the positioning holes on the connection auxiliary component A-1], and then eight connecting bolts (21) are respectively inserted through the connecting bolt holes on the connection auxiliary component A-1 and screwed into the connecting bolt matching holes on the metal inverted cone body A to lock in place. Then, the sealing ring that has been assembled with the sealing ring is screwed into the connection auxiliary through the internal thread on it. The external thread (53) on the auxiliary component A-1 is aligned and put into place, and then the connection auxiliary component A-2 and the connection auxiliary component A-1 are aligned according to the process requirements, and the three assembly connection bolts are aligned and passed through the assembly connection bolt through holes (29) on the connection auxiliary component A-2 and screwed into the assembly connection bolt matching holes (30) on the connection auxiliary component A-1 and locked in place, and finally the external thread on the cable connector is aligned and screwed into the internal thread (41) on the positioning auxiliary component A-2 that matches the cable connector and locked in place, and the cone-type backward stacked double-head electrical connector A part (3) is assembled;Then, the positioning matching locking claw and the matching positioning boss on the guide positioning auxiliary component B are aligned and inserted into or enter the claw positioning matching locking groove (35) or the matching positioning groove (45) on the connection auxiliary component B-1 and are in place. Then, the two ends of the compression spring are aligned and respectively inserted into the positioning guide sliding spacer plate and the spring matching clamping table (34) on the positioning guide sleeve column and are in place. Then, the metal inverted cone body B elongated connector is respectively screwed into the internal thread hole on the metal inverted cone body B through the external thread thereon and is locked in place. Then, the combination of the two metal inverted cone bodies B is respectively pressed through the assembly process positioning boss (28) thereon. The process requires that the assembly process guide locking groove (37) on the connection auxiliary part B-1 be inserted into place, and at the same time, the assembled rebound telescopic mechanism (2) be pushed into the corresponding matching hole on the connection auxiliary part B-1 according to the process requirements and into place. Finally, after the connection auxiliary part B-2 and the connection auxiliary part B-1 are aligned according to the process requirements, the eight assembly locking bolts (24) are respectively aligned and passed through the assembly locking bolt through holes (25) on the connection auxiliary part B-2 and screwed into the assembly locking bolt matching holes (26) on the connection auxiliary part B-1 and locked in place, and the conical backward stacking double-head electrical connector B part (4) is assembled. Before use, first remove the assembly connection bolts from the connection auxiliary parts A-1 and A-2 respectively, then loosen the back cover of the cable connector, and then align the cable riveted and cast plate that has been processed into one with the cable through the through hole on the back cover of the cable connector that has been assembled into one with the connection auxiliary part A-2 according to the process requirements and put it in place, then align the connection hole on the cable riveted and cast plate into the threaded connection end of the metal inverted cone-shaped body according to the process requirements and put it in place, then align and screw the locking nut into the threaded connection end of the metal inverted cone-shaped body and lock it in place, then align and pass the assembly connection bolt through hole on the connection auxiliary part A-2 and screw it into the assembly connection bolt matching hole on the connection auxiliary part A-1 and lock it in place, finally tighten and lock the back cover of the cable connector that has been assembled into one with the connection auxiliary part A-2, that is, the A part of the cone-type backward stacking double-head electrical connector is assembled and ready for use;Then, the cables in the equipment or distribution box are aligned according to the process requirements, passed through the reserved holes on the outer wall of the equipment or distribution box from the inside to the outside and put into place, and then the connecting holes on the cable riveted and cast composite plate that has been processed into one with the cable are aligned according to the process requirements and inserted into the threaded connection end of the metal inverted cone body B and put into place, and then the locking nut is aligned and screwed into the threaded connection end of the metal inverted cone body and locked in place, and finally, the cone-shaped backward-set stacked double-headed electrical connector B part with the connected cable is aligned according to the process requirements and inserted into the reserved holes on the outer wall of the matching equipment or distribution box and put into place, and the cone-shaped backward-set stacked double-headed electrical connector B part is connected to the equipment or distribution box as a whole by aligning the mounting bolts with the positioning holes on the mounting panel, and then installed and ready for use. When in use, first manually insert the inverted cone end on the A part of the conical backward stacking double-ended electrical connector into the starting end hole of the positioning guide flange on the B part of the conical backward stacking double-ended electrical connector that matches the inverted cone end on the A part of the conical backward stacking double-ended electrical connector. Then, a top pressure is applied to the A part of the conical backward stacking double-ended electrical connector relative to the B part of the conical backward stacking double-ended electrical connector. Through the mutual coordination and cooperation between the A part of the conical backward stacking double-ended electrical connector and the B part of the conical backward stacking double-ended electrical connector, the positioning guide sliding spacer plate is forced to slide backward, and the compression spring matched with it is compressed and put into place. Then, the A part of the conical backward stacking double-ended electrical connector is rotated (preferably clockwise) with the center of the circle of the A part of the conical backward stacking double-ended electrical connector as the axis. Connector part A is inserted so that the inverted cone end on it rotates along the positioning guide flange on the cone-type backward-stacked double-headed electrical connector part B to the end of the positioning guide flange and into position (the entire insertion and rotation process is accurately and correctly positioned by the matching guidance of the positioning guide flange on the cone-type backward-stacked double-headed electrical connector part B and the inverted cone end on the cone-type backward-stacked double-headed electrical connector part A). After it is in position, the top pressure is released, and the rebound force of the rebound-type telescopic mechanism forces the cone-type backward-stacked double-headed electrical connector part A to retreat and into position, so that the cone-type electrical contact surface A on the inverted cone end of the cone-type backward-stacked double-headed electrical connector part A and the cone-type electrical contact surface B on the metal inverted cone body B of the cone-type backward-stacked double-headed electrical connector part B overlap and wedge each other to complete the connection and conduction. When removing, the A part of the conical backward stacking double-ended electrical connector is pushed forward to the position and then rotated back to the position to be pulled out. [After the pushing pressure is applied, the positioning guide ring sleeve column on the A part of the conical backward stacking double-ended electrical connector moves forward, forcing the positioning guide sliding spacer plate matched with it to slide backward to compress the compression spring on the rebound telescopic mechanism. After it is in place, the A part of the conical backward stacking double-ended electrical connector is rotated in the opposite direction so that the inverted cone end on it is rotated along the positioning guide flange on the B part of the conical backward stacking double-ended electrical connector to the starting end hole of the positioning guide flange and then it can be pulled out.] In the figure, (1) is a conical backward stacking double-ended electrical connector, (33) is a limit convex point, (42) is an octahedral body for assembly, and (44) is a hexahedral body. ;

Claims

1. A conical backward stacking double-ended electrical connector for electric vehicles, characterized in that The double-ended electrical connector comprises a conical backward-stacked double-ended electrical connector part A provided with two metal inverted cone-shaped bodies A, at least one connecting auxiliary part A, at least one resilient telescopic mechanism, and a conical backward-stacked double-ended electrical connector part B provided with two metal inverted cone-shaped bodies B, at least one connecting auxiliary part B. The conical backward-stacked double-ended electrical connector part B is provided with a positioning guide flange corresponding to the inverted cone end on the conical backward-stacked double-ended electrical connector part A, which can guide its rotation and accurately guide the positioning. The metal inverted cone-shaped body A is provided with a conical electric contact surface A corresponding to and matching the conical electric contact surface B provided on the metal inverted cone-shaped body B. The number, relative positions and positions of the conical electric contact surfaces A relative to the central axis of the conical backward-stacked double-headed electric connector A are consistent and matched with the number, relative positions and positions of the conical electric contact surfaces B on the metal inverted cone-shaped body B relative to the central axis of the conical backward-stacked double-headed electric connector B. The conical electric contact surfaces A on the conical backward-stacked double-headed electric connector A and the conical electric contact surfaces B on the conical backward-stacked double-headed electric connector B are connected and conducted by overlapping and wedging with each other under the action of the rebound force of the rebound telescopic mechanism arranged between the conical backward-stacked double-headed electric connector A and the conical backward-stacked double-headed electric connector B.

2. A conical back-stacked double-ended electrical connector according to claim 1, characterized in that The resilient telescopic mechanism of the double-headed electric connector is composed of a compression spring, a positioning guide sliding spacer sleeve plate, and a positioning guide sleeve column.

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