Sunshade curtain power-on structure

Abstract

The application discloses a sunshade curtain power-on structure, and relates to the technical field of a vehicle sunshade assembly. The sunshade curtain power-on structure comprises a sunshade frame, a hollow moving beam is arranged on the sunshade frame in a sliding mode, a wire and a sunshade plate circuit lead wire are arranged in the moving beam, one end of the sunshade plate circuit lead wire is located in the moving beam, and the other end of the sunshade plate circuit lead wire penetrates out of the moving beam. One end of the wire penetrates out of the moving beam and extends into the sunshade frame. A telescopic conductive part is arranged in the moving beam, and the conductive part is used for connecting the wire and the sunshade plate circuit lead wire. The application can reduce the possibility of abnormal circuit connection in the sunshade frame.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle sunshade assemblies, and in particular to a sunshade curtain power-on structure. BACKGROUND

[0002] Sunshields are designed to shield sunlight and reduce the impact of sunlight on the eyes. Some sunshields can be pulled back and forth to adjust the degree of sunlight shining on the eyes, and also have a good cooling effect. In order to meet the sunshade needs of people and increase the sunshade area of sunshields, a sunshield with a sunshade curtain is widely used in vehicle sunshade technology.

[0003] In related technology, some sunshields with sunshade curtains are composed of a sunshade frame, a sunshield, and a telescopic sunshade curtain. A moving beam is slidably arranged on the sunshade mounting frame. The sunshield is slidably mounted on the sunshade mounting frame through the moving beam. The sunshade curtain is mounted between the sunshade frame and the moving beam. The sunshade curtain is controlled to be unfolded or retracted by sliding the moving beam.

[0004] Based on people's requirements for their own appearance, a makeup mirror with a light source is often provided on a common sunshield for people to use. The power supply line of the light source on the makeup mirror is connected in the moving beam. A wire that is in communication with the internal circuit of the vehicle body is arranged in the sunshade frame. The power supply line is coupled with the wire to realize power supply for the light source. The wire in the sunshade frame directly communicates with the power supply line of the light source. In order to ensure that the wire can normally communicate with the sunshield circuit lead line when the sunshade curtain is pulled in different positions, the wire needs to be reserved with sufficient length allowance. However, the overlong wire will produce abnormal noise during sliding in the sunshade frame. The wire is prone to aging and damage in high-frequency friction, which causes short circuit and other quality problems in the sunshade frame. SUMMARY

[0005] In order to reduce the possibility of abnormal circuit communication in the sunshade frame, the present application provides a sunshade curtain power-on structure.

[0006] The present application provides a sunshade curtain power-on structure, which adopts the following technical scheme:

[0007] The sunshade curtain power-on structure comprises a sunshade frame. A hollow moving beam is slidably arranged on the sunshade frame. A wire and a sunshield circuit lead line are arranged in the moving beam. One end of the sunshield circuit lead line is located in the moving beam, and the other end extends out of the moving beam. One end of the wire extends out of the moving beam and into the sunshade frame. A telescopic conductive member is arranged in the moving beam. The conductive member is used to communicate the wire and the sunshield circuit lead line.

[0008] Through the above technical scheme, one end of the wire passes through the movable beam and is connected with the internal circuit of the vehicle body, and the sun visor circuit lead wire passes through the movable beam and is connected with the components on the sun visor; the telescopic conductive part is arranged in the movable beam to realize the coupling between the wire and the sun visor circuit lead wire, so that the internal circuit of the vehicle body and the components on the movable beam are coupled; when the movable beam slides on the sun visor frame to unfold the sun visor curtain, the wire moves in the process to drive the conductive part to expand and contract, so that the wire and the sun visor circuit lead wire can maintain a conductive state; under the contraction of the conductive part, the sun visor circuit lead wire is not easy to move with the wire, thereby reducing the friction between the sun visor circuit lead wire and the movable beam, and the movable beam is not easy to produce abnormal sound when sliding; under the expansion and contraction of the conductive part, the friction between the wire and the movable beam is also reduced, and the possibility of damage to the wire is reduced.

[0009] Optionally, one end of the sun visor circuit lead wire in the movable beam is fixed to the inner wall of the movable beam.

[0010] Through the above technical scheme, one end of the sun visor circuit lead wire in the movable beam is fixed, which further reduces the possibility that the sun visor circuit lead wire in the movable beam moves with the wire.

[0011] Optionally, the conductive part includes a conductive spring, and the conductive spring is sleeved on the wire; one end of the conductive spring is coupled with the wire, and the other end is coupled with the sun visor circuit lead wire.

[0012] Through the above technical scheme, the wire and the sun visor circuit lead wire are connected through the conductive spring, and when the wire moves, the conductive spring expands and contracts adaptively with the movement of the wire, thereby realizing the connection between the wire and the sun visor circuit lead wire, and preventing the sun visor circuit lead wire from being damaged by moving with the wire.

[0013] Optionally, a sheath is sleeved on the conductive spring.

[0014] Through the above technical scheme, the sheath is sleeved on the conductive spring to protect the conductive spring; and the conductive spring is sleeved on the wire to protect part of the wire, thereby reducing the probability of damage to the wire due to abrasion.

[0015] Optionally, the sun visor frame includes two parallel slide rails and a mounting beam fixed to the same end of the two slide rails, the two slide rails are located on both sides of the movable beam, and one end of the wire is limited in the mounting beam to be connected with the internal circuit of the vehicle body.

[0016] By adopting the technical scheme, the mobile beam is arranged on the sunshade frame through sliding of the sliding rail, one end of the wire is fixed in the mounting beam and connected with the internal circuit of the vehicle body, so that when the wire moves, the end of the wire connected with the internal circuit of the vehicle body is not easy to move with the wire, and the connection stability between the wire and the internal circuit of the vehicle body is improved.

[0017] Optionally, a torsion spring is arranged in the mounting beam, and an abutting piece is fixed on the inner side wall of the mounting beam, one force receiving end of the torsion spring abuts against the abutting piece, two limiting rings are arranged at intervals on the other force receiving end of the torsion spring, and the wire passes through the limiting rings; a limiting sleeve for abutting against the limiting rings is arranged on the wire, and the limiting sleeve is located between the two limiting rings.

[0018] By adopting the technical scheme, the one force receiving end of the torsion spring abuts against the abutting piece, and the position of the torsion spring is limited; the limiting sleeve arranged on the wire is arranged between the two limiting rings and abuts against the limiting rings, so that the limiting rings limit the position of the end of the wire located in the mounting beam, and the end of the wire connected with the internal circuit of the vehicle body is not easy to move with the wire; and the two force receiving ends of the torsion spring can move relatively to a certain extent, so that the end of the wire located in the mounting beam can move slightly, and the possibility of wire breakage caused by improper force exertion of the operator is reduced.

[0019] Optionally, two pulleys with parallel axes are rotationally arranged in the mobile beam, and the two pulleys are rotationally arranged at two ends of the mobile beam respectively; one end of the wire away from the mounting beam passes through the two pulleys and then passes out from the side of the mobile beam away from the mounting beam, the end of the wire away from the mounting beam is limited on the mobile beam, and only part of the outer side wall of the pulley abuts against the wire.

[0020] By adopting the technical scheme, one end of the wire is limited in the mounting beam, and the other end of the wire passes through the two pulleys and is limited on the mobile beam, so that the wire is tensioned in the sunshade frame and the mobile beam, the wire can keep the tensioned state when the mobile beam slides to different positions, and the smoothness of the sliding of the mobile beam is improved; and during the sliding of the mobile beam, the mutual friction between the pulley and the wire is weak, so that the possibility of damage of the wire caused by friction is reduced.

[0021] Optionally, a limiting block is fixed to one end of the wire passing out of the mobile beam, and the limiting block is used for abutting against the outer side wall of the mobile beam.

[0022] By adopting the technical scheme, one end of the wire passing out of the mobile beam is limited by the limiting block, so that when the wire slips under the driving of the mobile beam, the end of the wire is not easy to slip into the inside of the mobile beam, and the possibility of mutual entanglement of the internal circuits of the mobile beam affecting the sliding of the mobile beam is reduced.

[0023] Optionally, the two wires are arranged, the pulley is provided with a first ring groove and a second ring groove for accommodating the wires, and the first ring groove is coaxially arranged with the second ring groove.

[0024] By adopting the above technical scheme, the pulley is provided with the first ring groove and the second ring groove, part of the wire is located in the first ring groove, and part of the other wire is located in the second ring groove. When the moving beam slides, the two wires are not easy to be entangled.

[0025] Optionally, the moving beam is provided with a plurality of parallel lead clamping plates, and a clamping groove is formed between adjacent lead clamping plates, and the clamping groove is used for accommodating the sunshade plate circuit lead.

[0026] By adopting the above technical scheme, the positioning groove is formed between the adjacent clamping plates, and is used for clamping part of the sunshade plate circuit lead of the clamping column. The sunshade plate circuit lead is further fixed, and the possibility that the sunshade plate circuit lead in the moving beam moves with the wire is inhibited.

[0027] In summary, the present application has at least one of the following beneficial effects:

[0028] 1. The lead segment of the sunshade plate circuit lead in the moving beam is fixed in the moving beam, the communication between the sunshade plate circuit lead and the wire is realized through the conductive spring, when the moving beam moves on the sunshade curtain frame, the conductive spring is adapted to stretch and contract, so that the sunshade plate circuit lead is not easy to move with the wire, and the possibility of friction between the sunshade plate circuit lead and the inner wall of the moving beam is reduced.

[0029] 2. Since the wire spring will stretch and contract adaptively when the wire moves, the length allowance of the wire that needs to be reserved can be reduced, which is beneficial to reduce the friction between the wire and the inner wall of the moving beam.

[0030] 3. The wire spring is sleeved on the lead, and the wire spring is provided with a sheath, which protects part of the wire and improves the protection effect of the wire in the sunshade frame. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a whole structure schematic diagram of a sunshade curtain power supply structure of an embodiment of the present application;

[0032] Figure 2 is a partial structure schematic diagram of a sunshade curtain power supply structure of an embodiment of the present application, which shows a pulley structure;

[0033] Figure 3 is a partial structure schematic diagram of a sunshade curtain power supply structure of an embodiment of the present application, which shows a coupling piece;

[0034] Figure 4is a structural schematic diagram of a lead distribution in a sunshade frame according to an embodiment of the present application;

[0035] Figure 5 is a partial enlarged structural schematic diagram of a sunshade curtain power supply structure in which a sunshade board circuit lead wire is in communication with a conductive spring according to an embodiment of the present application;

[0036] Figure 6 is a partial enlarged structural schematic diagram of a sunshade curtain power supply structure in which a lead wire is in communication with a conductive spring according to an embodiment of the present application.

[0037] Reference Signs: 1, sunshade frame; 11, slide rail; 111, slide groove; 12, mounting beam; 13, torsion spring; 14, limiting ring; 15, abutting piece; 16, connecting rod; 17, coupling piece; 171, fixing ring; 172, coupling clamp; 2, moving beam; 21, lead wire clamping plate; 22, riveting contact point; 3, lead wire; 31, limiting sleeve; 32, limiting block; 33, riveting pipe; 4, sunshade board circuit lead wire; 41, riveting contact piece; 5, conductive spring; 6, sheath; 7, pulley; 71, first ring groove; 72, second ring groove; 8, sunshade board; 9, sunshade curtain; 91, roller blind rod; 92, sunshade fabric; 10, power supply wire; 101, power supply main wire; 102, power supply branch wire; 103, power supply interface. DETAILED DESCRIPTION

[0038] The following will be described in detail below with reference to the accompanying drawings Figures 1-6 The present application will be described in further detail.

[0039] A sunshade curtain power supply structure disclosed by an embodiment of the present application, with reference to Figure 1 The sunshade curtain power supply structure comprises a sunshade frame 1, the sunshade frame 1 comprising a mounting beam 12 and two slide rails 11 integrally formed with the mounting beam 12; the two slide rails 11 are respectively located at two ends of the mounting beam 12, and the slide rails 11 are arranged perpendicularly to the mounting beam 12 in the length direction. A hollow moving beam 2 is arranged to slide between the two slide rails 11, and the slide rails 11 are provided with slide grooves 111 in the length direction, and the two ends of the moving beam 2 are respectively arranged to slide in a slide groove 111.

[0040] With reference to Figure 1 and Figure 2The connecting rod 16 is fixed on the moving beam 2 and has an "L" shape. One end of the connecting rod 16 penetrates through the moving beam 2 and is fixed on the moving beam 2. The rod segment of the connecting rod 16 outside the moving beam 2 is arranged in parallel with the length direction of the moving beam 2, and the sunshade board 8 is hinged on the rod segment of the connecting rod 16 outside the moving beam 2. The retractable sunshade curtain 9 is arranged between the moving beam 2 and the mounting beam 12. In the embodiment, the sunshade curtain 9 is specifically a spring roller type sunshade curtain 9. The sunshade curtain 9 comprises a roller rod 91, sunshade fabric 92 and a spherical overrunning clutch for controlling the rolling of the sunshade fabric 92. The roller rod 91 is arranged on the mounting beam 12 and is used for rolling the sunshade fabric 92. The side end of the sunshade fabric 92 away from the roller rod 91 is fixedly connected with the moving beam 2. In the embodiment, the sunshade fabric 92 is specifically rectangular. The sunshade fabric 92 can be moved by pulling the moving beam 2, so that the unfolding state of the sunshade fabric 92 is controlled.

[0041] In other embodiments of the embodiment, a plurality of slide rails 11 can be arranged at intervals on the mounting beam 12, and the moving beam 2 is arranged to slide between any two adjacent slide rails 11. The sunshade curtain 9 and the sunshade board 8 can also be arranged according to the number of moving beams 2.

[0042] Referring to Figure 2 and Figure 3 , the mounting beam 12 is provided with a strip-shaped arrangement groove 121 with a length direction perpendicular to the slide rails at one end close to the moving beam 2. The sunshade frame 1 is fixed with the power supply wire 10. The power supply wire 10 is arranged along the outer side wall of one slide rail 11 and is laid along the length direction of the arrangement groove 121 to the outer side wall of another slide rail 11. The power supply wire 10 comprises a power supply main wire 101 and a power supply branch wire 102 connected with the power supply main wire 101, and the power supply branch wire 102 is arranged in the arrangement groove 121. One end of the power supply main wire 101 is provided with a power connection interface 103 for connecting with the vehicle body internal circuit interface to connect the vehicle body internal circuit. The sunshade frame 1 is further provided with the lead wire 3. In the embodiment, the lead wire 3 is specifically provided with two lead wires. The power supply branch wire 102 is also specifically provided with two power supply branch wires, which are arranged at two ends of the arrangement groove 121 respectively. The coupling piece 17 is arranged between the power supply branch wire 102 and the lead wire 3. The coupling piece 17 comprises a fixing ring 171 and coupling clamps 172 fixed on both sides of the fixing ring 171. The fixing ring 171 is fixed on the inner side wall of the arrangement groove 121. One coupling clamp 172 clamps and couples with one end of the lead wire 3, and the other coupling clamp 172 clamps and couples with the power supply branch wire 102. The two power supply branch wires 102 are connected with the lead wire 3 through the coupling piece 17.

[0043] Referring to Figure 3The torsion spring 13 is arranged on the inner side wall of the arrangement groove 121, and the mounting beam 12 is fixed with a mounting rod on the side close to the power distribution line 102, and the torsion spring 13 is sleeved on the mounting rod. A abutting piece 15 is arranged on one side of the mounting rod, and the abutting piece 15 is fixed on the inner side wall of the arrangement groove 121. One force end of the torsion spring 13 abuts against the abutting piece 15, and the other force end is fixed with two limiting rings 14 which are arranged at intervals around the axis of the mounting rod. The wire 3 is connected with the power distribution line 102 after passing through the two limiting rings 14 in sequence, and the wire 3 is sleeved and fixed with a limiting sleeve 31 on the wire segment between the two limiting rings 14, and the outer diameter of the limiting sleeve 31 is larger than the inner diameter of the limiting ring 14, so that the wire segment connected with the power distribution line 102 is limited in the mounting beam 12, thereby improving the connection stability between the wire 3 and the power distribution line 102.

[0044] With reference to Figure 2 and Figure 4 , two pulleys 7 are arranged in the moving beam 2, and the pulleys 7 are respectively located at both ends of the moving beam 2. A first annular groove 71 and a second annular groove 72 are arranged on the outer circumferential side wall of the pulley. One end of one wire 3 away from the mounting beam 12 is inserted into the moving beam 2 along the sliding groove 111, and then passes out of the inner side wall of the moving beam 2 along the first annular groove 71. The other end of the other wire 3 away from the mounting beam 12 is inserted into the moving beam 2 along the sliding groove 111, and then passes out of the inner side wall of the moving beam 2 along the second annular groove 72. The wire 3 abuts against one side of the pulley 7 close to the mounting beam 12, and abuts against the other side of the pulley 7 away from the mounting beam 12. The two wires 3 are arranged in the moving beam 2 in a cross manner. The end of the wire 3 passing out of the inner side wall of the moving beam 2 is fixed with a limiting block 32. In this embodiment, the limiting block 32 is in the shape of a circular truncated cone, and the limiting block 32 is arranged to abut against the outer side wall of the moving beam 2, thereby limiting the end of the wire 3 away from the mounting beam 2 on the moving beam 2.

[0045] With reference to Figure 2 and Figure 5 , the connecting rod 16 is hollow, and the sun visor circuit lead wire 4 is arranged in the connecting rod 16. The sun visor circuit lead wire 4 is arranged in two parts, and the sun visor circuit lead wire 4 is inserted into the moving beam 2. The mounting beam 12 is provided with a lead clamping plate 21, and the lead clamping plate 21 is fixed with three parallel pieces. The lead clamping plates 21 on both sides are arranged close to the pulley 7, and the lead clamping plate 21 in the middle is arranged between the other two lead clamping plates 21 to form a clamping groove. The end of the sun visor circuit lead wire 4 away from the connecting rod 16 passes through the clamping groove and extends away from the connecting rod 16, and is connected with a riveting contact piece 41.

[0046] With reference to Figure 5The mobile beam 2 is provided with a telescopic conductive member, which is specifically a conductive spring 5 sleeved on the wire 3. A positioning groove is formed on the inner side wall of the mobile beam 2, and a riveting contact 22 is inserted into the positioning groove. One end of the conductive spring 5 is clamped between the riveting contact 41 and the inner side wall of the mobile beam 2, the riveting contact 22 is inserted into the positioning groove through the riveting contact 41, and the end of the riveting contact 22 abuts against the riveting contact 41, thereby achieving the fixed connection between the conductive spring 5 and the riveting contact 41.

[0047] Referring to Figure 6 , a contact port is formed on the wire 3, and a riveting pipe 33 is sleeved on the contact port. One end of the conductive spring 5 away from the riveting contact 41 is inserted into the riveting pipe 33, and the wire 3 is connected to the contact port. Thus, the communication between the wire 3 and the sunshade circuit lead 4 is achieved.

[0048] Referring to Figure 2 and Figure 6 , when the mobile beam 2 slides on the slide rail 11, the wire 3 moves under the action of the mobile beam 2, so that the conductive spring 5 extends or retracts to adapt to the movement of the wire 3. The end of the sunshade circuit lead 4 in the mobile beam 2 is fixed to the inner side wall of the mobile beam 2, and the conductive spring 5 realizes the conduction between the wire 3 and the sunshade circuit lead 4. The sunshade circuit lead 4 is not easy to move with the wire 3, thereby reducing the possibility of the sunshade circuit lead 4 moving in the mobile beam 2, and reducing the friction between the sunshade circuit lead 4 and the inner side wall of the mobile beam 2, and reducing the possibility of the sunshade circuit lead 4 being worn.

[0049] Based on the telescopic performance of the conductive spring 5, the required length of the wire 3 can be reduced, which is beneficial to reduce the friction between the wire 3 and the inner side wall of the mobile beam 2, so that the mobile beam 2 is not easy to produce abnormal sound when sliding.

[0050] Referring to Figure 4 and Figure 5 , in order to further improve the protection effect, a sheath 6 is sleeved on the conductive spring 5. In this embodiment, the sheath 6 is in the form of a circular tube.

[0051] In other embodiments of the present embodiment, the two wires 3 can be arranged on the same side in the sunshade frame 1. At this time, the power distribution line 102 is also arranged on the same side of the power main line 101. The two wires 3 are arranged in parallel in the mobile beam 2 and are respectively connected to the two sunshade circuit leads 4.

[0052] The implementation principle of the sunshade curtain power-on structure is as follows: the sunshade frame 1 is installed in the vehicle, the sunshade plate circuit lead wire 4 is connected with the light source power supply circuit on the sunshade plate 8 through one end of the moving beam 2. The power-on interface 103 on the power supply wire 10 is connected with the internal circuit of the vehicle body, and the light source on the sunshade plate 8 is powered. When the sunshade plate 8 needs to be unfolded, the moving beam 2 is pulled, so that the moving beam 2 moves away from the mounting beam 12, the sunshade fabric 92 is unfolded to the appropriate position, and the sunshade is performed. When the sunshade fabric 92 needs to be rolled up, the moving beam 2 is slid away from the mounting beam 12, and the sunshade fabric 92 is rolled up under the action of the spherical overrunning clutch. In the process of rolling up the sunshade fabric 92, the moving beam 2 is driven by the sunshade fabric 92 and moves towards the mounting beam 12 to abut against the mounting beam 12.

[0053] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made on the basis of the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An electrically conductive structure for a sunshade curtain, characterized in that: The application relates to a sunshade frame (1) provided with a hollow moving beam (2) slidingly arranged on the sunshade frame (1), a wire (3) and a sunshade plate circuit lead wire (4) are arranged in the moving beam (2), one end of the sunshade plate circuit lead wire (4) is located in the moving beam (2), the other end of the sunshade plate circuit lead wire (4) penetrates out of the moving beam (2), one end of the wire (3) penetrates out of the moving beam (2) and extends into the sunshade frame (1), a telescopic conductive part is arranged in the moving beam (2), and the conductive part is used for connecting the wire (3) and the sunshade plate circuit lead wire (4). The conductive part comprises a conductive spring (5), and the conductive spring (5) is sleeved on the wire (3); one end of the conductive spring (5) is coupled with the wire (3), and the other end of the conductive spring (5) is coupled with the sunshade plate circuit lead wire (4). The sunshade frame (1) comprises two parallel sliding rails (11) and a mounting beam (12) fixed to the same end of the two sliding rails (11), the two sliding rails (11) are respectively located on the two sides of the moving beam (2), and one end of the wire (3) is limited in the mounting beam (12) and used for being connected with the internal circuit of a vehicle body. A torsion spring (13) is arranged in the mounting beam (12), an abutting piece (15) is fixed to the inner wall of the mounting beam (12), one stress end of the torsion spring (13) abuts against the abutting piece (15), two limiting rings (14) are arranged at the other stress end of the torsion spring (13), and the wire (3) penetrates through the limiting rings (14); a limiting sleeve (31) for abutting against the limiting rings (14) is arranged on the wire (3), and the limiting sleeve (31) is located between the two limiting rings (14). Two axis-parallel pulleys (7) are rotationally arranged in the moving beam (2), and the two pulleys (7) are respectively rotationally arranged at the two ends of the moving beam (2); one end of the wire (3) away from the mounting beam (12) penetrates out of the side of the moving beam (2) away from the mounting beam (12) after passing through the two pulleys (7), and the one end of the wire (3) away from the mounting beam (12) is limited on the moving beam (2), and only part of the outer side wall of the pulley (7) abuts against the wire (3).

2. A sunshade curtain power supply structure according to claim 1, characterized in that: One end of the sunshade plate circuit lead wire (4) located in the moving beam (2) is fixed to the inner wall of the moving beam (2).

3. The sunshade curtain power supply structure according to claim 1, characterized in that: A sheath (6) is sleeved on the conductive spring (5).

4. The sunshade curtain power supply structure according to claim 1, characterized in that: One end of the wire (3) penetrating out of the moving beam (2) is fixed with a limiting block (32), and the limiting block (32) is used for abutting against the outer side wall of the moving beam (2).

5. The sunshade curtain power supply structure according to claim 1, characterized in that: The wire (3) is provided with two wires, the pulley (7) is provided with a first ring groove (71) and a second ring groove (72) for accommodating the wire (3), and the first ring groove (71) and the second ring groove (72) are coaxially arranged.

6. The sunshade curtain power supply structure according to claim 1, characterized in that: A plurality of parallel lead clamping plates (21) are arranged in the moving beam (2), and a clamping groove is formed between adjacent lead clamping plates (21), and the clamping groove is used for accommodating the sunshade plate circuit lead wire (4).

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