Quick-release lithium battery

Abstract

The invention relates to the technical field of lithium battery packs, in particular to a quick-release lithium battery which comprises a mounting box, a battery device and a heat dissipation device, a connecting main body is fixedly connected to the rear portion in the mounting box, a conductive reed is fixedly connected to the right side of the connecting main body, and the battery device is arranged on the right side of the connecting main body; the battery device is mounted on the right side of the mounting box through bolts, a vertically arranged partition plate is arranged in the battery device, the partition plate is fixedly connected with the mounting box and the connecting main body, and uniformly distributed heat dissipation main bodies are fixedly connected in the connecting main body. Through the arrangement of the mounting box, the connecting main body, the conductive reed, the partition plate, the battery device and the bolt, the battery device can be mounted in the mounting box, and the battery device is connected through the connecting main body and the conductive reed, so that the assembly of the lithium battery is realized, and the lithium battery is more practical.

Description

Technical Field

[0001] The present application relates to the technical field of lithium battery packs, and specifically to a quick-release lithium battery. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive / negative electrode materials and non-aqueous electrolyte solutions. Due to the very active chemical properties of lithium metal, the processing, storage, and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have become mainstream. When lithium batteries are produced, in order to reduce mold costs, they are usually made directly into lithium batteries of specific shapes. In order to obtain high-capacity lithium batteries, multiple lithium batteries are usually combined into a lithium battery pack so that the lithium batteries can cooperate with each other in the existing shape to obtain a larger battery capacity.

[0003] When using a traditional lithium battery pack, multiple lithium batteries are usually placed in a battery shell at the same time, and then the wires are directly fixed to the positive and negative electrodes of the battery by bolts. When disassembling the lithium battery, it is usually necessary to disassemble the shell and then remove the bolts. The operation process is complicated and it is inconvenient to disassemble the lithium battery. Therefore, a quick-release lithium battery is proposed to address the above problems. Summary of the invention

[0004] The purpose of the present application is to provide a quick-release lithium battery to solve the problem that the lithium batteries in a lithium battery pack are inconvenient to remove.

[0005] To achieve the above objectives, this application provides the following technical solutions:

[0006] A quick-release lithium battery comprises an installation box, a battery device and a heat dissipation device, wherein a connection body is fixedly connected to the rear of the installation box, a conductive spring is fixedly connected to the right side of the connection body, a battery device is arranged on the right side of the connection body, the battery device is mounted on the right side of the installation box by bolts, a vertically arranged partition is arranged in the battery device, the partition is fixedly connected to the installation box and the connection body, and a heat dissipation body with uniform distribution is fixedly connected in the connection body.

[0007] Preferably, the battery device comprises a fixing plate, a mounting plate, a sealing ring, a limiting plate, an upper baffle, a limiting body, a lower baffle, a battery body and a terminal plate, the left side of the fixing plate is fixedly connected with two mounting plates which are vertically arranged and distributed front to back, the side of the mounting plate away from the fixing plate is fixedly connected with a limiting plate which is transversely arranged and evenly distributed, the side of the top limiting plate away from the mounting plate is fixedly connected with the upper baffle, the side of the bottom limiting plate away from the mounting plate is fixedly connected with the limiting body, the sides of the remaining limiting plates away from the mounting plate are fixedly connected with the lower baffle, the side of the mounting plate away from the fixing plate is provided with evenly distributed battery bodies, limiting plates are provided on the upper and lower sides of the battery body, the side of the battery body away from the mounting plate is fixedly connected with two terminal plates which are horizontally arranged and distributed front to back, and the upper and lower sides of one end of the terminal plate away from the battery body are tightly fitted with conductive springs.

[0008] Preferably, the limiting body includes a slide plate, a slide bar, a connecting plate, a positioning spring, a support plate, a rotating wheel and a rotating shaft, the slide plate is fixedly connected to the limiting plate at the rear, a limiting groove is provided in the slide plate, and the upper and lower inner walls of the limiting groove provided by the slide plate are fixedly connected with two slide bars which are vertically arranged and distributed front to back, a connecting plate is provided on the outer side of the slide bar, a positioning spring is provided on the outer top of the slide bar, the front and rear tops of the support plate are fixedly connected with connecting plates, a rotating groove is provided in the bottom of the support plate, a rotating wheel is provided in the rotating groove provided by the support plate, a rotating shaft which is rotatably connected in the rotating wheel, and both ends of the rotating shaft are fixedly connected to the support plate.

[0009] Preferably, both left and right sides of the bottom of the installation box are provided with transversely arranged slide grooves, the bottom of the slide plate is arranged in the slide groove of the installation box, and the bottom of the rotating wheel is tightly fitted with the inner wall of the bottom of the slide groove of the installation box.

[0010] Preferably, the upper baffle, the slide plate and the right side of the lower baffle are tightly fitted with the battery body, the right side of the battery body is tightly fitted with the connecting plate, one side of the battery body is fitted with the mounting box, the other side of the battery body is fitted with the partition, the front and rear sides of the partition are fixedly connected with laterally arranged and evenly distributed separation plates, and the battery body is provided on the upper and lower sides of the separation plate.

[0011] Preferably, the heat dissipation body includes a first heat conducting pipe, a second heat conducting pipe, heat conducting fins and heat dissipation fins, the first heat conducting pipe is arranged in a U shape, the second heat conducting pipe is arranged in a U shape, the first heat conducting pipe and the second heat conducting pipe are fixedly connected at the outer sides of the central position with heat conducting fins that are evenly distributed, both ends of the first heat conducting pipe and the second heat conducting pipe pass through the connecting body, the outer sides of both ends of the first heat conducting pipe and the second heat conducting pipe are fixedly connected with heat dissipation fins that are evenly distributed, ventilation slots are provided on the front and back sides of the left side of the installation box, a dustproof body is installed on one side of the ventilation slot provided in the installation box, a fixing frame is fixedly connected to the side of the ventilation slot provided in the installation box away from the dustproof body, and evenly distributed electric fans are installed on the side of the fixing frame away from the dustproof body, the electric fans are respectively arranged on the left and right sides of the heat dissipation fins, and the blowing directions of the electric fans on the front and back sides are the same.

[0012] Preferably, conductive springs are provided on both the front and rear sides of the heat-conducting fins, one side of the conductive spring is provided with evenly distributed heat dissipation grooves, and a wiring board is tightly attached to the side of the conductive spring provided with the heat dissipation grooves.

[0013] Compared with the prior art, the beneficial effects of this application are:

[0014] 1. In the present application, the battery device can be loaded into the installation box by providing the installation box, the connection body, the conductive spring, the partition, the battery device and the bolts, and the battery device can be connected by the connection body and the conductive spring, so as to realize the assembly of the lithium battery, making the lithium battery more practical;

[0015] 2. In the present application, by setting the fixing plate, mounting plate, sealing ring, limiting plate, upper baffle, limiting body, lower baffle, battery body and terminal plate, the battery body can be directly placed between the limiting plates, and the battery body is limited by the limiting plates. When the battery body is disassembled, the limiting plates are directly driven to move by the fixing plate and the mounting plate, so that the battery body is directly taken out of the installation box through the upper baffle, limiting body and lower baffle, so as to realize the rapid disassembly of the lithium battery and facilitate the maintenance of the lithium battery;

[0016] 3. In the present application, the slide plate includes a limit groove, a slide bar, a connecting plate, a positioning spring, a support plate, a rotating groove, a rotating wheel and a rotating shaft. When the battery body is pulled out of the installation box, the connecting plate and the supporting plate are pushed downward by the positioning spring, so that the bottom of the rotating wheel contacts the desktop, thereby preventing the battery body from being pulled out suddenly and causing one side to suddenly fall and cause the battery body to vibrate, reducing the impact on the battery body, and making the installation and removal of the battery body more stable;

[0017] 4. In the present application, by providing the first heat pipe, the second heat pipe, the heat fins, the heat dissipation fins, the separation plate, the fixing frame, the electric fan, the dustproof body and the heat dissipation groove, the heat in the conductive reed can be quickly discharged under the action of the heat conduction groove, and then the heat is sent to the radiator through the heat conduction fins, the first heat pipe and the second heat pipe. Finally, the electric fan is started to drive the air flow to achieve heat dissipation. At the same time, the dustproof body can prevent dust from entering the installation box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of this application;

[0019] Figure 2 This is a schematic diagram of the installation structure of the connection subject of this application;

[0020] Figure 3 This is a schematic diagram of the installation structure of the partition of this application;

[0021] Figure 4 This is a rear structural schematic diagram of the battery device of the present application;

[0022] Figure 5 This is a schematic diagram of the structure of the limiting body of this application;

[0023] Figure 6 This is a schematic diagram of the installation structure of the rotating shaft of this application;

[0024] Figure 7 This is a schematic diagram of the installation structure of the heat dissipation body of this application;

[0025] Figure 8 This is a schematic diagram of the installation structure of the heat dissipation fins and thermal conductive fins of this application;

[0026] Fig. 9 This is a schematic diagram of the structure of the conductive reed of this application.

[0027] In the figure: 1. installation box; 2. connecting body; 3. conductive spring; 4. slide groove; 5. partition; 6. battery device; 61. fixing plate; 62. mounting plate; 63. sealing ring; 64. limiting plate; 65. upper baffle; 66. limiting body; 661. slide plate; 662. limiting groove; 663. slide bar; 664. connecting plate; 665. positioning spring; 666. supporting plate; 667. rotating groove; 668. rotating wheel; 669. rotating shaft; 67. lower baffle; 68. battery body; 69. terminal block; 7. bolt; 8. heat dissipation body; 81. first heat pipe; 82. second heat pipe; 83. heat conducting fin; 84. heat dissipation fin; 9. separation plate; 10. fixing frame; 11. electric fan; 12. dustproof body; 13. heat dissipation groove. DETAILED DESCRIPTION

[0028] See also Figure 1-9, this application provides a technical solution:

[0029] A quick-detachable lithium battery comprises an installation box 1, a battery device 6 and a heat dissipation device. A connection body 2 is fixedly connected to the rear of the installation box 1, a conductive spring 3 is fixedly connected to the right side of the connection body 2, a battery device 6 is arranged on the right side of the connection body 2, the battery device 6 is installed on the right side of the installation box 1 by bolts 7, a vertically arranged partition 5 is arranged in the battery device 6, the partition 5 is fixedly connected to the installation box 1 and the connection body 2, and a heat dissipation body 8 with uniform distribution is fixedly connected in the connection body 2. Through this arrangement, the battery device 6 can be loaded into the installation box 1, and the battery device 6 is connected by the connection body 2 and the conductive spring 3, so as to realize the assembly of the lithium battery and make the lithium battery more practical.

[0030] like Figure 1-6 As shown, the battery device 6 includes a fixing plate 61, a mounting plate 62, a sealing ring 63, a limiting plate 64, an upper baffle 65, a limiting body 66, a lower baffle 67, a battery body 68 and a terminal board 69. The left side of the fixing plate 61 is fixedly connected with two mounting plates 62 arranged vertically and distributed front and back, and the side of the mounting plate 62 away from the fixing plate 61 is fixedly connected with the limiting plates 64 arranged horizontally and evenly distributed. The side of the top limiting plate 64 away from the mounting plate 62 is fixedly connected with the upper baffle 65, and the side of the bottom limiting plate 64 away from the mounting plate 62 is fixedly connected with the limiting body 66, and the sides of the remaining limiting plates 64 away from the mounting plate 62 are fixedly connected with the lower baffle 67, and the side of the mounting plate 62 away from the fixing plate 61 is provided with evenly distributed The battery body 68 has limit plates 64 on both the upper and lower sides. The side of the battery body 68 away from the mounting plate 62 is fixedly connected with two horizontally arranged and front-to-back distributed terminal plates 69. The upper and lower sides of the end of the terminal plate 69 away from the battery body 68 are tightly fitted with conductive spring sheets 3. Through this arrangement, the battery body 68 can be directly placed between the limit plates 64, and the battery body 68 is limited by the limit plates 64. When the battery body 68 is disassembled, the limit plates 64 are directly driven to move by the fixing plate 61 and the mounting plate 62, so that the battery body 68 is directly taken out from the mounting box 1 through the upper baffle plate 65, the limit body 66 and the lower baffle plate 67, so as to realize the rapid disassembly of the lithium battery and facilitate the maintenance of the lithium battery.

[0031] like Figure 3-6As shown, the limiting body 66 includes a slide plate 661, a slide bar 663, a connecting plate 664, a positioning spring 665, a support plate 666, a rotating wheel 668 and a rotating shaft 669. The slide plate 661 is fixedly connected to the limiting plate 64 at the rear, and a limiting groove 662 is provided in the slide plate 661. The inner walls of the limiting groove 662 provided in the slide plate 661 are fixedly connected with two slide bars 663 arranged vertically and distributed front to back. A connecting plate 664 is arranged on the outer side of the slide bar 663, and a positioning spring 665 is arranged on the outer top of the slide bar 663. The tops of the front and rear sides of the support plate 666 are fixedly connected with the connecting plate 664. A rotating groove 667 is provided in the bottom of the support plate 666. A rotating wheel 668 is provided in the rotating groove 667 provided in the support plate 666. A rotating shaft 669 is rotatably connected to the rotating wheel 668. Both ends of the rotating shaft 669 are fixedly connected to the support plate 666. The left and right sides of the bottom of the installation box 1 are provided with transversely arranged slide grooves 4. The bottom of the battery pack 668 is arranged in the slide groove 4 provided in the installation box 1, the bottom of the rotating wheel 668 is closely fitted with the inner wall of the bottom of the slide groove 4 provided in the installation box 1, the upper baffle plate 65, the sliding plate 661 and the right side of the lower baffle plate 67 are closely fitted with the battery body 68, the right side of the battery body 68 is closely fitted with the connecting plate 664, one side of the battery body 68 is fitted with the installation box 1, and the other side of the battery body 68 is fitted with the partition 5, and the front and rear sides of the partition 5 are fixedly connected with the separating plates 9 which are arranged transversely and evenly distributed, and the separating plates 9 are provided with the battery body 68 on the upper and lower sides. Through this arrangement, when the battery body 68 is pulled out of the installation box 1, the connecting plate 664 and the supporting plate 666 are pushed downward by the positioning spring 665, so that the bottom of the rotating wheel 668 contacts with the desktop, so as to prevent the battery body 68 from being pulled out suddenly and causing one side to suddenly fall and cause the battery body 68 to vibrate, reduce the impact on the battery body 68, and make the installation and removal of the battery body 68 more stable.

[0032] like Figure 2 , 3, 7, 8 and 9, the heat dissipation body 8 includes a first heat conducting pipe 81, a second heat conducting pipe 82, heat conducting fins 83 and heat dissipation fins 84, the first heat conducting pipe 81 is arranged in a U shape, the second heat conducting pipe 82 is arranged in a U shape, the first heat conducting pipe 81 and the second heat conducting pipe 82 are fixedly connected at the central position with heat conducting fins 83 evenly distributed on the outer side, the first heat conducting pipe 81 and the second heat conducting pipe 82 both ends penetrate the connecting body 2, the first heat conducting pipe 81 and the second heat conducting pipe 82 both ends are fixedly connected with heat dissipation fins 84 evenly distributed on the outer side, the left side of the installation box 1 is provided with ventilation slots on both sides, the dustproof body 12 is installed on one side of the ventilation slot provided in the installation box 1, and the side of the ventilation slot provided in the installation box 1 away from the dustproof body 12 is fixedly connected with a fixing frame 10 A uniformly distributed electric fan 11 is installed on the side of the fixing frame 10 away from the dustproof main body 12. The electric fans 11 are respectively arranged on the left and right sides of the heat dissipation fins 84, and the blowing directions of the electric fans 11 on the front and rear sides are the same. Conductive springs 3 are arranged on the front and rear sides of the heat-conducting fins 83. A uniformly distributed heat dissipation groove 13 is opened on one side of the conductive spring 3. The side of the conductive spring 3 with the heat dissipation groove 13 is tightly fitted with the terminal board 69. Through this arrangement, the heat in the conductive spring 3 can be quickly discharged under the action of the heat-conducting groove, and then the heat is sent to the radiator through the heat-conducting fins 83, the first heat-conducting pipe 81 and the second heat-conducting pipe 82. Finally, the electric fan 11 is started to drive the air flow to achieve heat dissipation. At the same time, the dust-proof main body 12 can prevent dust from entering the installation box 1.

[0033] Working process: When using this lithium battery, first install the battery body 68 horizontally between the limiting plates 64. At this time, the limiting plates 64 support and limit the battery body 68. Then align the battery body 68 with the installation box 1 and install the battery body 68 into the installation box 1. At this time, the partition 5 in the installation box 1 separates the battery body 68 on the front and rear sides. During the pushing process, the separation plate 9 separates the battery body 68 on the upper and lower sides until the terminal board 69 provided on the battery body 68 is tightly fitted with the conductive spring 3. As the battery body 68 is pushed, the conductive spring 3 is gradually inserted between the two conductive springs 3, and at this time, the bolt 7 is passed through the fixing plate 61, so that the bolt 7 is threadedly connected with the installation box 1 and the partition 5 respectively, and then the lithium battery is electrically connected to the electrical appliance, and the electrical appliance is started by the external controller. At this time, the current is sent from the battery body 68 to the electrical appliance through the terminal board 69, the conductive spring 3 and the connecting body 2 to supply power to the electrical appliance, and a large amount of current will generate a large amount of heat when passing through the terminal board 69 and the conductive spring 3. At this time, the heat is sent to the first heat pipe 81 and the second heat pipe 82 through the heat conducting fins 83. At this time, the heat is sent to the heat dissipation fins 84 through the first heat conduction pipe 81 and the second heat conduction pipe 82, and then the electric fan 11 is started by the external controller. The electric fan 11 starts to drive air to circulate through the heat dissipation fins 84, and the air absorbs and takes out the heat in the heat dissipation fins 84 to achieve heat dissipation. When the battery body 68 needs to be replaced, the electrical appliance is first disconnected, and then the bolt 7 is removed, and then the fixing plate 61 is directly pulled. The fixing plate 61 drives the battery body 68 to move through the limit plate 64, and the battery body 68 drives the terminal board 69 to leave the conductive spring sheet 3, and at the same time, the rotating wheel 66 8 rotates on the outside of the rotating shaft 669 until the battery body 68 is completely taken out of the installation box 1. At this time, the positioning spring 665 pushes the connecting plate 664 to move downward on the outside of the sliding rod 663, and the connecting plate 664 drives the supporting plate 666 to move downward until the bottom of the rotating wheel 668 contacts the desktop, so as to facilitate the disassembly of the battery body 68. Then, the battery body 68 is taken out from between the limiting plates 64, and a new battery body 68 is placed between the partitions 5. Then, the battery body 68 is installed in the installation box 1 in the above manner, and the installation box 1 is sealed by the sealing ring 63.

[0034] This article uses specific examples to illustrate the principles and implementation methods of this application. The above examples are only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A quick-release lithium battery, comprising a mounting box (1), a battery device (6) and a heat dissipation device, characterized in that: A connection body (2) is fixedly connected to the rear of the installation box (1), a conductive spring sheet (3) is fixedly connected to the right side of the connection body (2), a battery device (6) is arranged on the right side of the connection body (2), the battery device (6) is installed on the right side of the installation box (1) by bolts (7), a vertical partition (5) is arranged in the battery device (6), the partition (5) is fixedly connected to the installation box (1) and the connection body (2), and a heat dissipation body (8) with uniform distribution is fixedly connected in the connection body (2).

2. A quick-release lithium battery according to claim 1, characterized in that: The battery device (6) comprises a fixing plate (61), a mounting plate (62), a sealing ring (63), a limiting plate (64), an upper baffle (65), a limiting body (66), a lower baffle (67), a battery body (68) and a wiring board (69); the left side of the fixing plate (61) is fixedly connected to two mounting plates (62) arranged vertically and distributed front to back; the side of the mounting plate (62) away from the fixing plate (61) is fixedly connected to limiting plates (64) arranged horizontally and evenly distributed; the side of the uppermost limiting plate (64) away from the mounting plate (62) is fixedly connected to the upper baffle (65); the lowermost limiting plate (64) is fixedly connected to the fixing plate (61); ) is fixedly connected to a limiting body (66) on one side away from the mounting plate (62), and a lower baffle (67) is fixedly connected to the other side of the limiting plate (64) away from the mounting plate (62). A battery body (68) that is evenly distributed is arranged on the side of the mounting plate (62) away from the fixing plate (61). Limiting plates (64) are arranged on both the upper and lower sides of the battery body (68). Two wiring boards (69) that are horizontally arranged and distributed in a front-to-back manner are fixedly connected to the side of the battery body (68) away from the mounting plate (62), and a conductive spring (3) is tightly fitted on both the upper and lower sides of one end of the wiring board (69) away from the battery body (68).

3. A quick-release lithium battery according to claim 2, characterized in that: The limiting body (66) comprises a slide plate (661), a slide bar (663), a connecting plate (664), a positioning spring (665), a support plate (666), a rotating wheel (668) and a rotating shaft (669). The rear of the slide plate (661) is fixedly connected to the limiting plate (64). A limiting groove (662) is provided in the slide plate (661). The inner walls of the limiting groove (662) provided in the slide plate (661) are fixedly connected with two vertically arranged slide bars (663) distributed front and back. The slide bars (663) A connecting plate (664) is provided on the outside, a positioning spring (665) is provided on the top of the outside of the sliding rod (663), the tops of the front and rear sides of the supporting plate (666) are fixedly connected with the connecting plates (664), a rotating groove (667) is provided in the bottom of the supporting plate (666), a rotating wheel (668) is provided in the rotating groove (667) provided in the supporting plate (666), a rotating shaft (669) is rotatably connected in the rotating wheel (668) and is arranged through, and both ends of the rotating shaft (669) are fixedly connected to the supporting plate (666).

4. A quick-release lithium battery according to claim 3, characterized in that: The installation box (1) has horizontally arranged slide grooves (4) on both left and right sides of its bottom, the bottom of the slide plate (661) is arranged in the slide groove (4) of the installation box (1), and the bottom of the rotating wheel (668) is tightly fitted with the inner wall of the bottom of the slide groove (4) of the installation box (1).

5. A quick-release lithium battery according to claim 3, characterized in that: The right sides of the upper baffle (65), the slide plate (661) and the lower baffle (67) are all tightly fitted with the battery body (68); the right side of the battery body (68) is tightly fitted with the connecting plate (664); one side of the battery body (68) is fitted with the installation box (1); the other side of the battery body (68) is fitted with the partition (5); the front and rear sides of the partition (5) are fixedly connected with a transversely arranged and evenly distributed separation plate (9); the battery body (68) is provided on the upper and lower sides of the separation plate (9).

6. A quick-release lithium battery according to claim 1, characterized in that: The heat dissipation body (8) comprises a first heat conduction pipe (81), a second heat conduction pipe (82), heat conduction fins (83) and heat dissipation fins (84); the first heat conduction pipe (81) is arranged in a U shape; the second heat conduction pipe (82) is arranged in a U shape; the first heat conduction pipe (81) and the second heat conduction pipe (82) are both fixedly connected at their central positions with heat conduction fins (83) evenly distributed; both ends of the first heat conduction pipe (81) and the second heat conduction pipe (82) pass through the connection body (2); and both ends of the first heat conduction pipe (81) and the second heat conduction pipe (82) are fixedly connected at their outer sides. The installation box (1) is fixedly connected with evenly distributed heat dissipation fins (84), and ventilation slots are provided on both the front and rear sides of the left side of the installation box (1). A dustproof body (12) is installed on one side of the ventilation slot provided in the installation box (1), and a fixing frame (10) is fixedly connected to the side of the ventilation slot provided in the installation box (1) away from the dustproof body (12). Evenly distributed electric fans (11) are installed on the side of the fixing frame (10) away from the dustproof body (12), and the electric fans (11) are respectively arranged on the left and right sides of the heat dissipation fins (84), and the electric fans (11) on the front and rear sides have the same blowing direction.

7. A quick-release lithium battery according to claim 6, characterized in that: Conductive springs (3) are provided on both the front and rear sides of the heat-conducting fins (83); one side of the conductive spring (3) is provided with evenly distributed heat dissipation grooves (13); and the side of the conductive spring (3) provided with the heat dissipation grooves (13) is tightly fitted with a wiring board (69).

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