Flexible circuit board for power battery pack of new energy automobile

Abstract

The utility model discloses a flexible circuit board for a power battery pack of a new energy automobile, relates to the technical field of circuit boards, and solves the problems that the conventional flexible circuit board for the power battery pack of the new energy automobile is easy to soften due to the fact that the battery pack is easy to generate part of heat, the aging of the flexible circuit board is caused, and the service life of the flexible circuit board is prolonged. And the service life of the power battery pack is further influenced. Comprising a wiring board, one end of the wiring board is connected with a substrate main body, the other end of the substrate main body is fixedly connected with a terminal, the substrate main body is composed of an upper covering film, a copper foil wire, a lower covering film and a reinforcing sheet, and six bending grooves are formed in the substrate main body; according to the utility model, heat generated by the battery pack is prevented from being conducted into the substrate main body, the generated heat is dissipated, and the heat dissipation frame is quickly fixed outside the protective frame, so that the substrate main body can be quickly disassembled and assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, and in particular to a flexible circuit board for a power battery pack of a new energy vehicle. Background Art

[0002] Flexible circuit board is a kind of highly reliable and extremely flexible printed circuit board made of polyimide or polyester film as the base material. It has the characteristics of high wiring density, light weight, thin thickness and good bending performance.

[0003] According to the "A Flexible Circuit Board" provided by the Chinese Patent Authorization Announcement No. CN206461824U, convex strips are arranged at intervals on the surface of the insulating film, and the direction of the convex strips is parallel to the bending part, so that the thickness of the insulating film is locally thinned, and the thinner thickness is easier to bend, further ensuring the bendability of the bending area;

[0004] However, the flexible circuit board used in the power battery pack of new energy vehicles is easy to soften due to the heat generated by the battery pack, causing the aging of the flexible circuit board, thereby affecting the service life of the power battery pack.

[0005] Therefore, a flexible circuit board for a new energy vehicle power battery pack is designed to solve the above problems. Summary of the invention

[0006] The utility model provides a flexible circuit board for a power battery pack of a new energy vehicle, which solves the technical problem that the flexible circuit board for the power battery pack of a new energy vehicle is easily softened due to the battery pack easily generating some heat, causing aging of the flexible circuit board, thereby affecting the service life of the power battery pack.

[0007] In order to solve the above technical problems, the utility model provides a flexible circuit board for a new energy vehicle power battery pack, including a terminal board, one end of the terminal board is connected to a substrate body, and the other end of the substrate body is fixedly connected to a terminal. The substrate body is composed of an upper covering film, a copper foil wire, a lower covering film and a reinforcement sheet. Six bending grooves are provided inside the substrate body, and each of the copper foil wires is socketed with a corresponding bending groove, and every three corresponding bending grooves form a group. A heat insulation component is provided on the outside of the substrate body, and positioning frames are movably socketed at both ends of the substrate body, and a clamping positioning component is provided inside the positioning frame.

[0008] Preferably, a protective frame is movably sleeved on the outside of the substrate body, and both ends of the substrate body pass through the protective frame and extend to the outside of the protective frame.

[0009] Preferably, the thermal insulation assembly includes a thermal insulation pad, a heat sink and heat sink fins. Thermal insulation pads are provided on the top and bottom of the substrate body, and the outer walls of the two thermal insulation pads are in contact with the inner wall of the protective frame. Heat sinks are provided on the top and bottom of the protective frame, and heat sink fins are fixedly installed on the outer walls of the two heat sinks.

[0010] Preferably, the clamping positioning assembly includes a transfer tube, a positioning pressure plate, a lifting rod and a tightening spring, the two positioning frames are internally rotatably sleeved with a transfer tube, the outer wall of each transfer tube is fixedly connected to a positioning pressure plate, the outer wall of each positioning pressure plate is in contact with the corresponding heat dissipation frame, the outside of each transfer tube is fixedly connected to a lifting rod, and a tightening spring is fixedly connected between each lifting rod and the positioning frame.

[0011] Preferably, a rotating shaft rod is fixedly sleeved inside each of the adapter tubes, and each of the adapter tubes is rotatably sleeved with the positioning frame via the rotating shaft rod.

[0012] Preferably, two spring slots are provided on the outer walls of the two positioning frames, and the two tightening springs are connected to the positioning frames via the spring slots.

[0013] Compared with the related art, the flexible circuit board for a new energy vehicle power battery pack provided by the utility model has the following beneficial effects:

[0014] The utility model provides a flexible circuit board for a power battery pack of a new energy vehicle. A substrate body is connected to one end of a wiring board, and a terminal is fixedly connected to the other end of the substrate body. The substrate body is composed of an upper covering film, a copper foil wire, a lower covering film and a reinforcing sheet to form a flexible circuit board. A protective frame is provided outside the substrate body to provide protective support for the substrate body when the substrate body is assembled with the battery pack. A heat insulation pad is provided between the protective frame and the substrate body. A heat dissipation fin is fixedly installed on the outside of the protective frame through a heat dissipation frame to prevent the heat generated by the battery pack from being conducted to the inside of the substrate body and to dissipate the generated heat.

[0015] Two positioning frames are movably sleeved on the outside of the heat dissipation frame, and two adapter tubes are rotatably sleeved on the inside of the positioning frame via a rotating shaft rod, thereby supporting the positioning pressure plate for rotation, and a lifting rod is fixedly installed on the outside of the adapter tube, so that the positioning pressure plate can be flipped, and a tightening spring is fixedly connected between the lifting rod and the positioning frame, so that the heat dissipation frame can be quickly fixed to the outside of the protective frame, so as to facilitate the rapid disassembly and assembly of the substrate body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the new structure of the utility model from the side as a whole;

[0018] Figure 3 For this utility model Figure 1 Schematic diagram of the structure of the part;

[0019] Figure 4 For this utility model Figure 2 Schematic diagram of the structure enlarged at point A in the middle.

[0020] Numbers in the figure: 1. terminal block; 2. base plate body; 201. reinforcement sheet; 202. lower covering film; 203. copper foil conductor; 204. upper covering film; 3. terminal; 4. bending groove; 5. spring groove; 6. thermal insulation assembly; 601. thermal insulation pad; 602. heat sink; 603. heat sink fin; 7. positioning frame; 8. pivot rod; 9. clamping positioning assembly; 901. adapter tube; 902. positioning pressure plate; 903. lifting rod; 904. tightening spring; 10. protective frame. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] Depend on Figure 1-4 The utility model provides a flexible circuit board for a new energy vehicle power battery pack, comprising a terminal board 1, one end of the terminal board 1 is connected to a substrate body 2, the other end of the substrate body 2 is fixedly connected to a terminal 3, the substrate body 2 is composed of an upper covering film 204, a copper foil wire 203, a lower covering film 202 and a reinforcing sheet 201, six bending grooves 4 are arranged inside the substrate body 2, each copper foil wire 203 is sleeved with a corresponding bending groove 4, and every three corresponding bending grooves 4 form a group, a heat insulation component 6 is arranged outside the substrate body 2, and positioning frames 7 are movably sleeved at both ends of the substrate body 2, and a clamping positioning component 9 is arranged inside the positioning frame 7.

[0023] See also Figure 2 The outer part of the substrate body 2 is movably sleeved with a protective frame 10. Both ends of the substrate body 2 penetrate the protective frame 10 and extend to the outside of the protective frame 10, so that the substrate body 2 can be protected and supported when assembled with the battery pack.

[0024] See also Figure 4The thermal insulation component 6 includes a thermal insulation pad 601, a heat sink 602 and heat dissipation fins 603. The top and bottom of the substrate body 2 are provided with thermal insulation pads 601, and the outer walls of the two thermal insulation pads 601 are in contact with the inner wall of the protective frame 10. The top and bottom of the protective frame 10 are provided with heat sinks 602, and the outer walls of the two heat sinks 602 are fixedly installed with heat dissipation fins 603, thereby preventing the heat generated by the battery pack from being conducted to the interior of the substrate body 2 and dissipating the generated heat.

[0025] See also Figure 4 The clamping positioning assembly 9 includes a transfer tube 901, a positioning pressure plate 902, a lifting rod 903 and a tightening spring 904. The two positioning frames 7 are internally rotatably sleeved with the transfer tube 901, the outer wall of each transfer tube 901 is fixedly connected with a positioning pressure plate 902, the outer wall of each positioning pressure plate 902 is in contact with the corresponding heat dissipation frame 602, and the outside of each transfer tube 901 is fixedly connected with a lifting rod 903, and a tightening spring 904 is fixedly connected between each lifting rod 903 and the positioning frame 7, so that the heat insulation and heat dissipation structure can be quickly positioned.

[0026] See also Figure 4 A rotating shaft rod 8 is fixedly sleeved inside each adapter tube 901 , and each adapter tube 901 is rotatably sleeved with the positioning frame 7 through the rotating shaft rod 8 , so that the adapter tube 901 can be rotatably supported inside the positioning frame 7 .

[0027] See also Figure 4 The outer walls of the two positioning frames 7 are each provided with two spring slots 5, and the two tightening springs 904 are both connected to the positioning frames 7 through the spring slots 5, thereby enabling the tightening springs 904 to be sleeved and installed.

[0028] Working principle: first, a protective frame 10 is provided on the outside of the substrate body 2, so that the substrate body 2 can be protected and supported when it is assembled with the battery pack, and a heat insulation pad 601 is provided between the protective frame 10 and the substrate body 2, and then the heat dissipation fins 603 are fixedly installed on the outside of the protective frame 10 through the heat dissipation frame 602, so as to prevent the heat generated by the battery pack from being conducted to the inside of the substrate body 2 and dissipate the generated heat; two positioning frames 7 are movably sleeved on the outside of the heat dissipation frame 602, and then two adapter tubes 901 are rotatably sleeved on the inside of the positioning frame 7 through the rotating shaft rod 8, thereby rotatably supporting the positioning pressure plate 902, and a lifting rod 903 is fixedly installed on the outside of the adapter tube 901, so that the positioning pressure plate 902 can be flipped, and then a tightening spring 904 is fixedly connected between the lifting rod 903 and the positioning frame 7, so that the heat dissipation frame can be quickly fixed to the outside of the protective frame 10, so as to facilitate the rapid disassembly and assembly of the substrate body 2.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flexible circuit board for a new energy vehicle power battery pack, comprising a wiring board (1), characterized in that: One end of the wiring board (1) is connected to a substrate body (2), and the other end of the substrate body (2) is fixedly connected to a terminal (3). The substrate body (2) comprises an upper covering film (204), a copper foil conductor (203), a lower covering film (202) and a reinforcing sheet (201). Six bending grooves (4) are provided inside the substrate body (2), and each of the copper foil conductors (203) is sleeved with a corresponding bending groove (4). Three corresponding bending grooves (4) form a group. A heat insulation component (6) is provided outside the substrate body (2). Positioning frames (7) are movably sleeved at both ends of the substrate body (2), and a clamping positioning component (9) is provided inside the positioning frame (7).

2. A flexible circuit board for a new energy vehicle power battery pack according to claim 1, characterized in that: The exterior of the substrate body (2) is movably sleeved with a protective frame (10), and both ends of the substrate body (2) penetrate the protective frame (10) and extend to the exterior of the protective frame (10).

3. A flexible circuit board for a new energy vehicle power battery pack according to claim 2, characterized in that: The thermal insulation component (6) comprises a thermal insulation pad (601), a heat sink (602) and heat dissipation fins (603); the top and bottom of the substrate body (2) are both provided with thermal insulation pads (601); the outer walls of the two thermal insulation pads (601) are in contact with the inner wall of the protective frame (10); the top and bottom of the protective frame (10) are both provided with heat sinks (602); and the outer walls of the two heat sinks (602) are both fixedly mounted with heat dissipation fins (603).

4. A flexible circuit board for a new energy vehicle power battery pack according to claim 3, characterized in that: The clamping positioning assembly (9) includes a transfer tube (901), a positioning pressure plate (902), a lifting rod (903) and a tightening spring (904); the interiors of the two positioning frames (7) are rotatably sleeved with a transfer tube (901); the outer wall of each transfer tube (901) is fixedly connected to a positioning pressure plate (902); the outer wall of each positioning pressure plate (902) is in contact with a corresponding heat dissipation frame (602); the exterior of each transfer tube (901) is fixedly connected to a lifting rod (903); and a tightening spring (904) is fixedly connected between each lifting rod (903) and the positioning frame (7).

5. A flexible circuit board for a new energy vehicle power battery pack according to claim 4, characterized in that: A rotating shaft rod (8) is fixedly sleeved inside each of the transfer tubes (901), and each of the transfer tubes (901) is rotatably sleeved with the positioning frame (7) via the rotating shaft rod (8).

6. A flexible circuit board for a new energy vehicle power battery pack according to claim 4, characterized in that: Two spring slots (5) are provided on the outer walls of the two positioning frames (7), and the two tightening springs (904) are connected to the positioning frames (7) via the spring slots (5).

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