Battery pack BMU self-locking structure

Abstract

The invention discloses a battery pack BMU self-locking structure, and relates to the technical field of power batteries. The BMU comprises a BMU body, wherein two sides of the BMU body are respectively provided with two first clamping grooves; and the self-locking plate is located at the bottom of the BMU body, two positioning columns are arranged on the upper side of the self-locking plate, two first trapezoidal blocks are elastically and slidably matched with one sides of the positioning columns, the first trapezoidal blocks are located in the first clamping grooves, and telescopic plates are rotatably matched with the two ends of the positioning columns correspondingly. According to the BMU, the first trapezoidal block is arranged, the clamping plate is manually changed into the vertical state from the horizontal state, so that the first trapezoidal block is rotated out of the first clamping groove of the BMU body through the clamping plate, the first trapezoidal block is separated from the first clamping groove, locking of the BMU body is relieved, and due to the whole self-locking structure, the BMU body is convenient to disassemble and assemble, and replacement and maintenance of the BMU body are facilitated.

Description

Technical Field

[0001] The present invention belongs to the field of power batteries, and in particular relates to a battery pack BMU self-locking structure. Background Art

[0002] The battery management system BMS is the core component of the power battery. The BMS system is generally composed of multiple battery management units BMU. In the later operation of the battery system, BMS often needs to collect BMS information or upgrade the software. The battery pack is usually compact, and the BMU is generally connected to the shell by bolts, which is difficult to disassemble and inconvenient for later maintenance. Summary of the invention

[0003] The object of the present invention is to provide a battery pack BMU self-locking structure to facilitate the disassembly, assembly and maintenance of the BMU.

[0004] To achieve the above object, the present invention is achieved through the following technical solutions: The battery pack BMU self-locking structure includes a BMU body, two first card slots are provided on both sides of the BMU body; a self-locking plate is located at the bottom of the BMU body, and two positioning columns are provided on the upper side of the self-locking plate, one side of the positioning column is elastically and slidably matched with two first trapezoidal blocks, and the first trapezoidal blocks extend into the first card slots, both ends of the positioning column are rotatably matched with telescopic plates, a card plate is rotatably matched between the two telescopic plates, and one end of the card plate is matched with one side of the first trapezoidal block.

[0005] Optionally, two first slides are provided on one side of the positioning column, two first fixed cylinders are installed inside the first slide, one end of the first fixed cylinder is slidably engaged with the first sliding rod, and one end of the first sliding rod is installed on one side of the first trapezoidal block, two first springs are installed between the first trapezoidal block and the side wall of the first slide, and the telescopic plate includes: a first fixed rod installed on one side of the positioning column, a rotating plate is rotatably engaged with the first fixed rod, a second slide is provided at one end of the rotating plate, the second slide is slidably engaged with the sliding plate inside, a second fixed rod is installed at one end of the sliding plate, and one end of the second fixed rod is rotatably engaged with one side of the clamping plate.

[0006] Optionally, a first fixed block is installed on both sides of the sliding plate, a second fixed block is installed on both sides of the rotating plate, a second spring is installed between the adjacent second fixed block and the first fixed block, a clamping block is slidably matched with one side of the rotating plate, a second trapezoidal block is installed at the first end of the clamping block, a sliding groove is provided inside the clamping block, a third fixed block is installed on both sides of the second trapezoidal block, a second sliding rod is installed at one end of the third fixed block, a second fixed cylinder is slidably matched with one end of the second sliding rod, and one end of the second fixed cylinder is installed on one side of the rotating plate.

[0007] Optionally, a third spring is installed between the rotating plate and the third fixed block, two fourth fixed blocks are installed on one side of the rotating plate, a guide rod is installed between the two fourth fixed blocks, a sliding column is slidably matched on the guide rod, a fourth spring is installed between one side of the sliding column and the fourth fixed block, one end of the sliding column cooperates with one side of the second trapezoidal block, a second slot is opened on one side of the sliding plate, and the second end of the slot is located inside the second slot, the cross-section of the first trapezoidal block is a right-angled trapezoid, a first inclined surface is provided on one side of the first trapezoidal block, and the first inclined surface faces the first slot, the cross-section of the second trapezoidal block is an isosceles trapezoid, and second inclined surfaces are provided on both sides of the second trapezoidal block, and the second inclined surface faces the sliding column.

[0008] The embodiments of the present invention have the following beneficial effects: In one embodiment of the present invention, a first trapezoidal block is provided so that the card plate can be changed from a horizontal state to a vertical state under the drive of a user, so that the first trapezoidal block can be rotated out of the first card slot of the BMU body through the card plate, so that the first trapezoidal block can release the positioning of the BMU body through the first card slot, thereby reducing the difficulty of disassembling the BMU body, facilitating the replacement and repair of a faulty BMU body, and improving the convenience of later maintenance of the BMU body. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention; Figure 2 It is a schematic cross-sectional structure diagram of an embodiment of the present invention; Figure 3 This is a schematic diagram of the positioning column structure according to an embodiment of the present invention; Figure 4 for Figure 3 Schematic diagram of the structure at A in the middle; Figure 5 FIG. 1 is a schematic diagram of the structure of a sliding plate according to an embodiment of the present invention.

[0010] The above drawings include the following reference numerals: Self-locking plate 1, positioning column 101, first fixed cylinder 102, first sliding rod 103, first spring 104, first trapezoidal block 105, first fixed rod 106, rotating plate 107, sliding plate 108, clamping plate 109, second fixed rod 110, fillet 111, first fixed block 112, second fixed block 113, second spring 114, clamping block 115, slide groove 116, second trapezoidal block 117, second fixed cylinder 118, second sliding rod 119, third spring 120, third fixed block 121, fourth fixed block 122, guide rod 123, sliding column 124, fourth spring 125, second clamping groove 126, second slide 127, first slide 128; BMU body 2 , first card slot 201 . DETAILED DESCRIPTION

[0011] The technical scheme of the present invention is described in detail below in conjunction with the embodiments and drawings. The described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The description of the following embodiments is actually only an example, rather than any limitation to the present invention and its application.

[0012] See also Figure 1-5 As shown, in the present embodiment, a battery pack BMU self-locking structure is provided, including a BMU body 2 and a self-locking plate 1 located at the bottom of the BMU body 2, two first card slots 201 are provided on both sides of the BMU body 2; two positioning columns 101 are provided on the upper side of the self-locking plate 1, and one side of the positioning column 101 is elastically and slidably fitted with two first trapezoidal blocks 105, and the first trapezoidal block 105 extends into the first card slot 201, and both ends of the positioning column 101 are rotatably fitted with a telescopic plate, and a card plate 109 is rotatably fitted between the two telescopic plates, and one end of the card plate 109 is fitted with one side of the first trapezoidal block 105.

[0013] When the BMU body 2 needs to be taken out, first slide the two sliding columns 124, the two sliding columns 124 approach each other, the sliding column 124 slides on the guide rod 123 and stretches the fourth spring 125, the sliding column 124 drives the second trapezoidal block 117 to slide through the second inclined surface, the second trapezoidal block 117 drives the second sliding rod 119 to slide in the second fixed cylinder 118 through the third fixed block 121 and stretches the third spring 120, the second trapezoidal block 117 drives the card block 115 to slide out of the second card slot 126, and then stretches the card plate 109 upward, the card plate 109 drives the sliding plate 108 to slide inside the second slideway 127 through the second fixed rod 110, the sliding plate 108 stretches the second spring 114 through the first fixed block 112, and then drives The card plate 109 is inserted between the positioning column 101 and the BMU body 2, and the card plate 109 drives the first trapezoidal block 105 to slide out of the first card slot 201 of the BMU body 2. The first trapezoidal block 105 drives the first sliding rod 103 to slide in the first fixed cylinder 102 and compresses the first spring 104, and then the sliding column 124 is released. The sliding column 124 is reset under the elastic action of the fourth spring 125. Similarly, the second trapezoidal block 117 is reset under the elastic action of the third spring 120, and the second trapezoidal block 117 drives the card block 115 to slide into the second card slot 126 of the sliding plate 108 again. At this time, the sliding plate 108 and the rotating plate 107 change from a horizontal state to a vertical state, and then the BMU body 2 can be removed from the self-locking plate 1.

[0014] The first trapezoidal block 105 is set so that the card plate 109 can be changed from a horizontal state to a vertical state under the drive of the user, so that the first trapezoidal block 105 can be rotated out of the first card slot 201 of the BMU body 2 through the card plate 109, so that the first trapezoidal block 105 can release the positioning of the BMU body 2 through the first card slot 201, thereby reducing the difficulty of disassembling the BMU body 2, facilitating the replacement and repair of the faulty BMU body 2, and improving the convenience of later maintenance of the BMU body 2.

[0015] Specifically, one side of the positioning column 101 is provided with two first slides 128, and two first fixed cylinders 102 are installed inside the first slide 128, one end of the first fixed cylinder 102 is slidably matched with the first sliding rod 103, and one end of the first sliding rod 103 is installed on one side of the first trapezoidal block 105, and two first springs 104 are installed between the first trapezoidal block 105 and the side wall of the first slide 128, the telescopic plate includes: a first fixed rod 106 installed on one side of the positioning column 101, a rotating plate 107 is rotatably matched on the first fixed rod 106, a second slide 127 is provided at one end of the rotating plate 107, the second slide 127 is slidably matched with the sliding plate 108 inside, and a second fixed rod 110 is installed at one end of the sliding plate 108, a rounded corner 111 is provided on one side of the positioning column 101, and one end of the second fixed rod 110 is rotatably matched with one side of the clamping plate 109, which facilitates the rotation of the clamping plate 109 on the second fixed rod 110.

[0016] Specifically, first fixed blocks 112 are installed on both sides of the sliding plate 108, second fixed blocks 113 are installed on both sides of the rotating plate 107, second springs 114 are installed between the adjacent second fixed blocks 113 and the first fixed blocks 112, a clamping block 115 is slidably matched on one side of the rotating plate 107, a second trapezoidal block 117 is installed on the first end of the clamping block 115, a sliding groove 116 is provided inside the clamping block 115, third fixed blocks 121 are installed on both sides of the second trapezoidal block 117, a second sliding rod 119 is installed on one end of the third fixed block 121, a second sliding rod 119 is slidably matched with a second fixed cylinder 118 at one end, and one end of the second fixed cylinder 118 is installed on one side of the rotating plate 107, which facilitates the fixing of the second fixed cylinder 118 by the rotating plate 107.

[0017] Specifically, a third spring 120 is installed between the rotating plate 107 and the third fixed block 121, two fourth fixed blocks 122 are installed on one side of the rotating plate 107, a guide rod 123 is installed between the two fourth fixed blocks 122, a sliding column 124 is slidably matched on the guide rod 123, a fourth spring 125 is installed between one side of the sliding column 124 and the fourth fixed block 122, one end of the sliding column 124 is matched with one side of the second trapezoidal block 117, and one side of the sliding plate 108 is opened. A second slot 126 is provided, and the second end of the block 115 is located inside the second slot 126. The cross-section of the first trapezoidal block 105 is a right-angled trapezoid. A first inclined surface is provided on one side of the first trapezoidal block 105, and the first inclined surface faces the first slot 201. The cross-section of the second trapezoidal block 117 is an isosceles trapezoid. Second inclined surfaces are provided on both sides of the second trapezoidal block 117, and the second inclined surfaces face the sliding column 124, which facilitates the sliding column 124 to drive the second trapezoidal block 117 to slide through the second inclined surface.

[0018] It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are only for convenience of description and do not limit a specific order or sequence.

Claims

1. A battery pack BMU self-locking structure, characterized in that: include: A BMU body (2), two first card slots (201) being provided on both sides of the BMU body (2); A self-locking plate (1) is provided, and the self-locking plate (1) is located at the bottom of a BMU body (2). Two positioning columns (101) are arranged on the upper side of the self-locking plate (1). One side of the positioning column (101) is elastically and slidably matched with two first trapezoidal blocks (105), and the first trapezoidal blocks (105) extend into the first clamping groove (201). Both ends of the positioning column (101) are rotatably matched with telescopic plates. A clamping plate (109) is rotatably matched between the two telescopic plates, and one end of the clamping plate (109) is matched with one side of the first trapezoidal block (105).

2. A battery pack BMU self-locking structure as claimed in claim 1, characterized in that: Two first slideways (128) are provided on one side of the positioning column (101), two first fixed cylinders (102) are installed inside the first slideway (128), one end of the first fixed cylinder (102) is slidably matched with a first sliding rod (103), and one end of the first sliding rod (103) is installed on one side of the first trapezoidal block (105), and two first springs (104) are installed between the first trapezoidal block (105) and the side wall of the first slideway (128).

3. A battery pack BMU self-locking structure as claimed in claim 1, characterized in that: The telescopic plate includes: A first fixing rod (106) is mounted on one side of the positioning column (101), and a rotating plate (107) is rotatably engaged with the first fixing rod (106). A second slideway (127) is provided at one end of the rotating plate (107), and a sliding plate (108) is slidably engaged with the second slideway (127). A second fixing rod (110) is mounted on one end of the sliding plate (108), and one end of the second fixing rod (110) is rotatably engaged with one side of the clamping plate (109).

4. A battery pack BMU self-locking structure as claimed in claim 1, characterized in that: First fixing blocks (112) are installed on both sides of the sliding plate (108), second fixing blocks (113) are installed on both sides of the rotating plate (107), and second springs (114) are installed between adjacent second fixing blocks (113) and first fixing blocks (112).

5. A battery pack BMU self-locking structure as claimed in claim 3, characterized in that: A clamping block (115) is slidably engaged with one side of the rotating plate (107), a second trapezoidal block (117) is mounted on a first end of the clamping block (115), and a sliding groove (116) is provided inside the clamping block (115).

6. A battery pack BMU self-locking structure as claimed in claim 5, characterized in that: A third fixed block (121) is mounted on both sides of the second trapezoidal block (117); a second sliding rod (119) is mounted on one end of the third fixed block (121); a second fixed cylinder (118) is slidably matched with one end of the second sliding rod (119); and one end of the second fixed cylinder (118) is mounted on one side of the rotating plate (107).

7. A battery pack BMU self-locking structure as claimed in claim 6, characterized in that: A third spring (120) is installed between the rotating plate (107) and the third fixed block (121), two fourth fixed blocks (122) are installed on one side of the rotating plate (107), and a guide rod (123) is installed between the two fourth fixed blocks (122).

8. A battery pack BMU self-locking structure as claimed in claim 7, characterized in that: A sliding column (124) is slidably matched on the guide rod (123), a fourth spring (125) is installed between one side of the sliding column (124) and the fourth fixed block (122), and one end of the sliding column (124) is matched with one side of the second trapezoidal block (117).

9. A battery pack BMU self-locking structure as claimed in claim 5, characterized in that: A second locking groove (126) is provided on one side of the sliding plate (108), and the second end of the locking block (115) is located inside the second locking groove (126).

10. A battery pack BMU self-locking structure as claimed in claim 8, characterized in that: The cross section of the first trapezoidal block (105) is a right-angled trapezoid, a first inclined surface is provided on one side of the first trapezoidal block (105), and the first inclined surface faces the first clamping groove (201), and the cross section of the second trapezoidal block (117) is an isosceles trapezoid, second inclined surfaces are provided on both sides of the second trapezoidal block (117), and the second inclined surfaces face the sliding column (124).

Images