Novel high-voltage connection shielding device and high-voltage connector using same

Abstract

The utility model discloses a novel high-voltage connection shielding device and a high-voltage connector using the same. The novel high-voltage connection shielding device comprises a shielding ring, a mounting seat and a mounting panel, the shielding ring comprises an annular main body, the front end of the main body is provided with a plurality of notch-shaped accommodating intervals, an axial wall plate is formed between every two adjacent accommodating intervals, and the end of each axial wall plate is bent outwards to form an elastic tooth; the mounting seat comprises an elastic clamping head for fixing the shielding ring and a backward plug for protecting the elastic claw; the mounting panel comprises at least one stepped through-hole-shaped mounting hole, the main body is inserted and sleeved in the rear stepped hole and is sleeved on the outer wall of the mounting seat, and the end surfaces of a plurality of elastic teeth are in elastic contact with positioning steps of the mounting hole; and the inner core of the cable passes through the inner hole of the mounting seat. The utility model has the advantages of avoiding dust caused by friction generated by side contact in radial shielding, and being simple in structure, stable in shielding performance, low in cost, stable in contact, and especially suitable for new energy connectors.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical connection, in particular to a novel high-voltage connection shielding device and a high-voltage connector using the same. Background Art

[0002] High-voltage connectors are widely used in scenarios that provide stable high-voltage and high-current transmission between electrical equipment. For example, with the vigorous development of the new energy vehicle market (especially electric vehicles, hybrid vehicles, etc.), the demand for IPT high-voltage connectors is increasing, and at the same time, the requirements for quality, performance, process, and cost are becoming more and more stringent.

[0003] There are currently two types of shielding structures for high-voltage connectors: the first is radial shielding, where the convex springs on the side of the shielding ring are in contact with the mounting panel, but customers have reported that friction during the plug-in process can easily lead to the generation of metal dust, which may affect the sealing performance of the seal ring and electrical clearance. The second is end-face sealing, where a corrugated ring is assembled on the shielding ring, and the corrugated ring is in contact with the mounting panel, but this structure is complex, costly, and has cumbersome processes. At the same time, the shielding performance is reduced by the transition between the shielding ring and the corrugated ring, which adds an additional transition compared to the conventional shielding closed-loop system, and there is a chance that the shielding performance will decrease;

[0004] Therefore, a solution is needed that avoids dust interference, has high shielding performance, simple structure, low cost and stable contact. Utility Model Content

[0005] In order to solve one or more of the above problems, the utility model provides a novel high-voltage connection shielding device.

[0006] According to one aspect of the utility model, the novel high-voltage connection shielding device comprises: a shielding ring, a mounting seat and a mounting panel;

[0007] The shielding ring comprises a circular ring-shaped main body, a plurality of notch-shaped accommodation intervals are arranged at the front end of the main body, an axial wall plate is formed between adjacent accommodation intervals, and the end of the axial wall plate is bent outward to form a spring tooth;

[0008] The mounting base includes an elastic clamp for fixing the shielding ring and a rearward plug for protecting the spring teeth;

[0009] The mounting panel includes at least one mounting hole in the shape of a stepped through hole, a positioning step is formed at the connection between the rear step hole and the front step hole of the mounting hole, the main body is inserted into the rear step hole and the shaft sleeve is on the outer wall of the mounting seat, and a plurality of spring tooth end faces elastically contact the positioning step; the inner core of the cable passes through the inner hole of the mounting seat.

[0010] The new high-voltage connection shielding device adopts a plurality of spring teeth on the end face of the shielding ring and a positioning step on the installation panel to achieve elastic contact of the end face. Its beneficial effects are: first, it avoids dust caused by friction caused by side contact in radial shielding, and can maintain good sealing performance and electrical clearance of the sealing ring; second, compared with the traditional end face contact structure of corrugated ring and shielding ring, this structure is simple, the shielding performance between the connection and the installation panel is stable, there is no transition structure to reduce the shielding performance, it is convenient for mass production, low cost, stable contact, especially in new energy connectors, it has obvious advantages; third, this structure is easy to install and maintain.

[0011] In some embodiments, the spring tooth is a secondary bending structure, the end of the axial wall plate is bent outward and upward at a small angle to form a first bending arm, and the end of the first bending arm is bent backward to form a nearly straight folded end tooth, and the end surface of the folded end tooth elastically contacts the positioning step;

[0012] A first bending radius is formed between the first bending arm and the axial wall plate.

[0013] In some embodiments, the spring teeth are formed by a stamping process.

[0014] In some embodiments, the receiving space, the axial wall plate and the spring teeth are arranged in a circumferential array.

[0015] In some embodiments, a small-diameter wire fixing ring is further provided at the rear end of the main body, and the wire fixing ring is inserted between the inner core and the inner shielding layer of the cable; the shielding compression sleeve is fixed to the outer wall of the inner shielding layer.

[0016] In some embodiments, the accommodating interval is a rectangular notch, and a rearward plug is provided at the end of the mounting seat, and the rearward plug is located in the accommodating interval to prevent the spring teeth from scratching the mounting hole when the mounting panel fails due to overpressure or tilts;

[0017] Or the rear end of the main body is also provided with a plurality of circumferentially distributed clamping holes, the mounting seat is provided with a plurality of elastic clamping heads, and the elastic clamping heads enter the clamping holes.

[0018] In some embodiments, a first sealing ring is further provided between the rear step hole and the main body, and the front end of the housing is attached to the rear end of the first sealing ring;

[0019] In some embodiments, a second sealing ring is further provided between the end of the housing and the cable, and the rear end of the second sealing ring fits the tail cover.

[0020] The utility model also provides a high-voltage connector, comprising: any one of the above-mentioned novel high-voltage connection shielding devices.

[0021] Furthermore, it also includes a mounting base, a shielding sleeve, a tail cover and a shell.

[0022] The mounting seat is sleeved on the outer wall of the inner core of the cable and is clamped in the shielding ring of the shielding device;

[0023] The end plate of the housing is connected to the mounting panel of the shielding device through a threaded member, a shielding ring and a shielding pressing sleeve are placed at the front and rear ends of the inner cavity of the housing, and the end of the housing is clamped with a tail cover;

[0024] The shielding compression sleeve is sleeved on the outer wall of the cable and is located outside the inner shielding layer, and the wire fixing ring at the rear end of the shielding ring is inserted between the inner core and the inner shielding layer.

[0025] This high-voltage connector adopts a new type of high-voltage connection shielding device, and the end face of the shielding ring is provided with a number of spring teeth and the mounting panel is provided with positioning steps for elastic contact of the end face. Its beneficial effects are: first, it avoids dust caused by friction caused by side contact in radial shielding, and can maintain good sealing performance and electrical clearance of the sealing ring; second, compared with the traditional end face contact structure of the corrugated ring and the shielding ring, the structure is simple, the shielding performance between the connection and the mounting panel is stable, there is no transition structure to reduce the shielding performance, it is convenient for mass production, low cost, stable contact, especially in new energy connectors, it has obvious advantages; third, the structure is easy to install and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A three-dimensional schematic diagram of a high-voltage connector with a novel high-voltage connection shielding device according to an embodiment of the utility model;

[0027] Figure 2 for Figure 1 A schematic cross-sectional view of the high voltage connector shown;

[0028] Figure 3 for Figure 2 A three-dimensional schematic diagram of the shielding ring shown (a);

[0029] Figure 4 for Figure 2 A three-dimensional schematic diagram of the shielding ring shown (II);

[0030] Figure 5 for Figure 2 A three-dimensional schematic diagram of the installation panel shown;

[0031] Figure 6 for Figure 2 A three-dimensional schematic diagram of the mount shown;

[0032] Figure 7 for Figure 2 A three-dimensional schematic diagram of the shielding ring, mounting base and cable shown;

[0033] Shielding ring 1, main body 100, accommodating space 101, axial wall plate 102, spring tooth 103, first bending arm 104, first bending fillet 105, folded end tooth 106, wire fixing ring 107, clamping hole 108, spring plate 109;

[0034] Mounting panel 2, mounting hole 21, positioning step 210, rear step hole 211, front step hole 212;

[0035] Mounting seat 3, rear plug 31, elastic clamp 32; shielding sleeve 4; tail cover 5;

[0036] Housing 6, end plate 61; first sealing ring 7; second sealing ring 8;

[0037] Cable 01, inner core 010, inner shielding layer 011, heat shrink tube 012, copper bus terminal 013. DETAILED DESCRIPTION

[0038] The present invention is further described in detail below in conjunction with the accompanying drawings. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0039] Figures 1 to 7 A new high-voltage connection shielding device according to an embodiment of the utility model is schematically shown. As shown in the figure, the new high-voltage connection shielding device comprises: a shielding ring 1, a mounting seat 3 and a mounting panel 2;

[0040] The shielding ring 1 includes a circular ring-shaped main body 100, a plurality of notched receiving spaces 101 are provided at the front end of the main body 100, an axial wall plate 102 is formed between two adjacent receiving spaces 101, and the ends of the axial wall plates 102 are bent outward to form spring teeth 103. In addition, a preferred processing method of the spring teeth 103 is: the spring teeth 103 are processed by a stamping process, and the benefits of stamping processing are: convenient processing, relatively high processing accuracy, fast production speed, and low processing cost.

[0041] The mounting seat 3 includes an elastic clamp 32 for fixing the shielding ring 1, and a rearward plug 31 for protecting the spring teeth 103;

[0042] The mounting panel 2 includes at least one mounting hole 21 in the shape of a stepped through hole, and a positioning step 210 is formed at the connection between the rear step hole 211 and the front step hole 212 of the mounting hole 21. The main body 100 is inserted into the rear step hole 211 and the shaft sleeve is on the outer wall of the mounting seat 3, and the end faces of several spring teeth 103 elastically contact the positioning step 210; the inner core 010 of the cable 01 passes through the inner hole of the mounting seat 3.

[0043] The new high-voltage connection shielding device adopts a plurality of spring teeth 103 set on the end face of the shielding ring 1 and a positioning step 210 set on the installation panel 2 for elastic contact of the end face. Its beneficial effects are: first, it avoids dust caused by friction caused by side contact in radial shielding, and can maintain good sealing performance and electrical clearance of the sealing ring; second, compared with the traditional end face contact structure corrugated ring and shielding ring, the structure is simple, the shielding performance connected with the installation panel 2 is stable, there is no transition structure to reduce the shielding performance, it is convenient for mass production, low cost, stable contact, especially in new energy connectors, it has obvious advantages; third, the structure is easy to install and maintain.

[0044] Furthermore, the spring tooth 103 is a secondary bending structure, the end of the axial wall plate 102 is bent outward and upward at a small angle to form a first bending arm 104, and the end of the first bending arm 104 is bent backward to form a nearly straight folded end tooth 106, and the end surface of the folded end tooth 106 elastically contacts the positioning step 210;

[0045] A first bending fillet 105 is formed between the first bending arm 104 and the axial wall plate 102, and a second bending fillet is formed between the folded end tooth 106 and the first bending arm 104. The beneficial effects are: the secondary bending can further improve the elasticity of the spring tooth 103, further reduce the possibility of friction dust generation, and ensure uniform load distribution at the bending end, avoid bending crack defects, and avoid fracture caused by local amplified stress.

[0046] In some embodiments, the bending angle between the first bending arm 104 and the axial wall plate 102 is greater than 90° and less than 120°. The beneficial effect is that the bending angle can achieve good elastic end face contact, perform effective end face shielding, and does not generate friction dust.

[0047] Furthermore, a small diameter wire fixing ring 107 is provided at the rear end of the main body 100.

[0048] The wire fixing ring 107 is inserted between the inner core 010 and the inner shielding layer 011 of the cable 01;

[0049] The shielding sleeve 4 is fixed to the outer wall of the inner shielding layer 011. The beneficial effect is that the arrangement can optimize the shielding performance of the cable 01.

[0050] Furthermore, the accommodating interval 101 is a rectangular notch, and a rearward plug 31 is provided at the end of the mounting seat 3. The rearward plug 31 is located in the accommodating interval 101 to prevent the spring teeth 103 from scratching the mounting hole 21 when the mounting panel 2 is over-pressurized and fails or tilts.

[0051] Preferably, the rear end of the main body 100 is further provided with a plurality of circumferentially distributed snap-in holes 108, each snap-in hole 108 is provided with a spring plate 109, and the mounting seat 3 is provided with a plurality of elastic snap-in heads 32, which enter the snap-in holes 108. The beneficial effect is that the structure is convenient for insertion, so that the cable 01 is well fixed.

[0052] Furthermore, a first sealing ring 7 is provided between the rear step hole 211 and the main body 100 , and the front end of the housing 6 fits the rear end of the first sealing ring 7 .

[0053] Furthermore, a second sealing ring 8 is provided between the end of the housing 6 and the cable 01, and the rear end of the second sealing ring 8 is fitted to the tail cover 5. The beneficial effect is that the above two sealing settings can prevent impurities from entering and keep the shield in good sealing performance for a long time.

[0054] Furthermore, after the front end of the inner core 010 of the cable 01 passes through the installation panel 2 , the front end of the inner core 010 is connected to the copper bus terminal 013 through the heat shrink tube 012 , and the copper bus terminal 013 is connected to the copper bus 014 .

[0055] Furthermore, the shielding ring 1 and the shielding pressing sleeve 4 are placed in the front and back of the shell 6, and the mounting seat 3 is inserted in the shielding ring 1; the end plate 61 of the shell 6 is fixed to the mounting panel 2 by a threaded part, wherein a protective cover is installed on the threaded part, and the tail cover 5 is clamped at the end of the shell 6.

[0056] A high-voltage connector comprises: any one of the above-mentioned novel high-voltage connection shielding devices.

[0057] Furthermore, the high voltage connector includes: a shielding ring 1, a mounting panel 2, a mounting seat 3, a shielding sleeve 4, a tail cover 5 and a housing 6.

[0058] The mounting seat 3 is sleeved on the outer wall of the inner core 010 of the cable 01 and is clamped in the shielding ring 1 of the shielding device;

[0059] The end plate 61 of the housing 6 is connected to the mounting panel 2 of the shielding device through a threaded member. The shielding ring 1 and the shielding pressing sleeve 4 are placed at the front and rear ends of the inner cavity of the housing 6. The end of the housing 6 is clamped with the tail cover 5.

[0060] The shielding compression sleeve 4 is sleeved on the outer wall of the cable 01 and is located outside the inner shielding layer 011 . The wire fixing ring 107 at the rear end of the shielding ring 1 is inserted between the inner core 010 and the inner shielding layer 011 .

[0061] This high-voltage connector adopts a new type of high-voltage connection shielding device, and the end face of the shielding ring 1 is provided with a plurality of spring teeth 103 and the mounting panel 2 is provided with a positioning step 210 for elastic contact of the end face. Its beneficial effects are: first, it avoids dust caused by friction caused by side contact in radial shielding, and can maintain good sealing performance and electrical clearance of the sealing ring; second, compared with the traditional end face contact structure corrugated ring and shielding ring, this structure is simple, the shielding performance between the mounting panel 2 is stable, there is no transition structure to reduce the shielding performance, it is convenient for mass production, low cost, stable contact, especially in new energy connectors, it has obvious advantages; third, this structure is easy to install and maintain.

[0062] Preferably, the front end of the shielding ring 1 has a spring tooth 103, and the spring tooth 103 can be processed by a stamping process; the mounting panel 2 includes at least one stepped through-hole-shaped mounting hole 21, and the mounting hole 21 has a positioning step 210. The shielding ring 1 is inserted into the rear step hole 211 of the mounting hole 21 and the shaft sleeve is on the outer wall of the mounting seat 3, and the end faces of several spring teeth 103 elastically contact the positioning step 210.

[0063] Furthermore, a rearward plug 31 is provided at the end of the mounting seat 3, and the rearward plug 31 is located in the accommodation space 101. The mounting seat 3 is provided with a plurality of elastic clamps 32, and the elastic clamps 32 enter the clamping holes 108 of the shielding ring 1;

[0064] After the inner core 010 at the front end of the cable 01 passes through the inner hole of the mounting seat 3 and the mounting panel 2, the front end of the inner core 010 is connected to the copper bus terminal 013 through the heat shrink tube 012, and the copper bus terminal 013 is connected to the copper bus.

[0065] Furthermore, a first sealing ring 7 is provided between the rear step hole 211 and the main body 100 , and the front end of the shell 6 fits the rear end of the first sealing ring 7 ; a second sealing ring 8 is provided between the end of the shell 6 and the cable 01 , and the rear end of the second sealing ring 8 fits the tail cover 5 .

[0066] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A novel high voltage connection shielding device, characterized in that: include: Shielding ring (1), mounting seat (3) and mounting panel (2); The shielding ring (1) comprises a circular ring-shaped main body (100), a plurality of notch-shaped accommodation spaces (101) are provided at the front end of the main body (100), an axial wall plate (102) is formed between two adjacent accommodation spaces (101), and the end of the axial wall plate (102) is bent outward to form a spring tooth (103); The mounting seat (3) comprises an elastic clamp (32) for fixing the shielding ring (1), and a rearward plug (31) for protecting the elastic teeth (103); The mounting panel (2) comprises at least one mounting hole (21) in the form of a stepped through hole, a positioning step (210) being formed at the connection between a rear step hole (211) and a front step hole (212) of the mounting hole (21), the main body (100) being inserted into the rear step hole (211) and the shaft sleeve being on the outer wall of the mounting seat (3), and the end faces of a plurality of the spring teeth (103) being elastically in contact with the positioning step (210); the inner core (010) of the cable (01) passes through the inner hole of the mounting seat (3).

2. The novel high voltage connection shielding device according to claim 1 is characterized in that: The spring tooth (103) is a secondary bending structure, the end of the axial wall plate (102) is bent outward and upward at a small angle to form a first bending arm (104), and the end of the first bending arm (104) is bent backward to form a nearly straight folded end tooth (106), and the end surface of the folded end tooth (106) elastically contacts the positioning step (210); A first bending fillet (105) is formed between the first bending arm (104) and the axial wall plate (102).

3. The novel high voltage connection shielding device according to claim 2 is characterized in that: The spring teeth (103) are formed by a stamping process.

4. The novel high voltage connection shielding device according to any one of claims 1 to 3, characterized in that: The accommodating space (101), the axial wall plate (102) and the spring teeth (103) are arranged in a circumferential manner.

5. The novel high voltage connection shielding device according to claim 4 is characterized in that: The rear end of the main body (100) is also provided with a small diameter wire fixing ring (107). The wire fixing ring (107) is inserted between the inner core (010) and the inner shielding layer (011) of the cable (01); The shielding pressing sleeve (4) is fixed on the outer wall of the inner shielding layer (011).

6. The novel high voltage connection shielding device according to claim 4 is characterized in that: The accommodating space (101) is a rectangular notch, the rearward plug (31) is provided at the end of the mounting seat (3), and the rearward plug (31) is located in the accommodating space (101) to prevent the spring teeth (103) from scratching the mounting hole (21) when the mounting panel (2) fails due to overpressure or tilts; Or the rear end of the main body (100) is further provided with a plurality of circumferentially distributed clamping holes (108), the mounting seat (3) is provided with a plurality of elastic clamping heads (32), and the elastic clamping heads (32) enter the clamping holes (108).

7. The novel high voltage connection shielding device according to claim 4 is characterized in that: A first sealing ring (7) is also provided between the rear step hole (211) and the main body (100), and the front end of the housing (6) fits the rear end of the first sealing ring (7).

8. The novel high voltage connection shielding device according to claim 7 is characterized in that: A second sealing ring (8) is also provided between the end of the housing (6) and the cable (01), and the rear end of the second sealing ring (8) fits in contact with the tail cover (5).

9. A high voltage connector, characterized in that: include: A new type of high voltage connection shielding device as described in any one of claims 1-8.

10. A high voltage connector according to claim 9, characterized in that: It also includes a mounting seat (3), a shielding sleeve (4), a tail cover (5) and a housing (6). The mounting seat (3) is sleeved on the outer wall of the inner core (010) of the cable (01) and is clamped in the shielding ring (1) of the shielding device; The end plate (61) of the shell (6) is connected to the mounting panel (2) of the shielding device via a threaded member, the shielding ring (1) and the shielding pressing sleeve (4) are placed at the front and rear ends of the inner cavity of the shell (6), and the end of the shell (6) is clamped with the tail cover (5); The shielding compression sleeve (4) is sleeved on the outer wall of the cable (01) and is located outside the inner shielding layer (011); the wire fixing ring (107) at the rear end of the shielding ring (1) is inserted between the inner core (010) and the inner shielding layer (011).

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