Combined connection structure for lithium iron phosphate battery pack

Abstract

The utility model discloses a combined connection structure for a lithium iron phosphate battery pack, which comprises a lower plate and an upper plate which are detachably connected, a plurality of electrode plates are arranged on the lower plate and the upper plate, a plurality of elastic parts are connected between the electrode plates and the lower plate and between the electrode plates and the upper plate, and the battery pack is positioned between the lower plate and the upper plate. The lower plate and the upper plate are connected together through the angle rods, the upper plate, the lower plate and the battery form a whole after combination is completed, subsequent installation steps can be facilitated, and operation is facilitated.

Description

Technical Field

[0001] The utility model relates to a combined connection structure for a lithium iron phosphate battery pack, belonging to the technical field of battery packs. Background Art

[0002] At present, in order to achieve the purpose of enhancing current and voltage, multiple batteries are combined into a battery pack for use. In order to solve the technical defects of existing battery pack products such as complex connection structure that is not conducive to automated operation, large internal resistance, and high heat generation, a Chinese patent document with publication number CN206340594U discloses a 12V40A lithium iron phosphate battery pack combined connection structure, which connects multiple batteries together by setting multiple connecting nickel sheets, but after the connection, an additional fixing device is required to fix the multiple connecting nickel sheets and the batteries together, which increases the complexity of the operation. In order to solve the above problems, the utility model provides a combined connection structure for a lithium iron phosphate battery pack. Utility Model Content

[0003] In view of the problems existing in the above-mentioned prior art, the utility model provides a combined connection structure for a lithium iron phosphate battery pack, in which the lower plate and the upper plate are connected together by angle rods. After the assembly is completed, the upper plate, the lower plate and the battery form a whole, which can facilitate subsequent installation steps and facilitate operation.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a combined connection structure for a lithium iron phosphate battery pack, including a lower plate and an upper plate, and the lower plate and the upper plate are detachably connected. When assembled, the lower plate and the upper plate are separated from each other for convenient assembly and installation. A plurality of electrode plates are arranged on the lower plate and the upper plate, and a plurality of elastic members are connected between the electrode plates and the lower plate and the upper plate. The battery pack is located between the lower plate and the upper plate, and the positive and negative poles of the battery are electrically connected to the corresponding electrode plates respectively. After the lower plate and the upper plate are connected together, the battery will be electrically connected to the electrode plate. The elastic member has a pressing force to press the electrode plate against the battery. Under the action of the pressing force of the elastic member, the electrode plate will fit tightly with the electrode of the battery.

[0005] Preferably, the multiple electrode plates on the lower plate and the multiple electrode plates on the upper plate are distributed in multiple rows, and the multiple rows of electrode plates are insulated from each other, and the multiple rows of electrode plates will not affect each other.

[0006] Preferably, the lower plate and the upper plate are provided with grooves adapted to the electrode plates, the elastic member is located inside the grooves, and the grooves can limit the electrode plates.

[0007] Preferably, the groove walls on both sides of the groove opening are provided with limiting grooves adapted to the battery, and the ends of the battery will be inserted into the limiting grooves after installation.

[0008] Preferably, the elastic member includes two mutually symmetrical spring sheets, which can provide a more stable support. The spring sheet is in a "U" shape, and one side of its open end is fixedly connected to the groove wall of the groove, and the other side is fixedly connected to the electrode plate.

[0009] Preferably, corner bars are fixedly connected to the four corners of the lower plate, and the corner bars are connected to the upper plate via bolts. The four corner bars can cooperate with each other to fix the upper plate.

[0010] Preferably, a clamping block is installed on the upper plate, and a clamping groove matched with the clamping block is opened on the corner rod, so that the upper plate can be clamped with the corner rod through the clamping block during installation.

[0011] Preferably, the card block is slidably connected to the inside of a slide groove provided on the upper plate, and a spring is installed between the card block and the groove wall of the slide groove. Under the elastic force of the spring, the card block will be stably engaged with the slot. The outer end of the card block is a protruding inclined surface in the middle, which can facilitate the staff to install the upper plate between multiple corner rods.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. An elastic member is provided between the electrode plate and the lower plate or the upper plate. Under the action of the elastic member, the electrode plate and the battery electrode can be closely fitted, ensuring the stability of electrical transmission;

[0014] 2. A limit groove is set at the opening of the groove, which can limit the battery and keep the battery stable after assembly;

[0015] 3. A clamping block is provided on the upper plate, and a clamping slot is provided on the angle bar, so that the upper plate and the angle bar can be clamped together during installation, so that the staff can conveniently connect the upper plate and the angle bar together using bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is an exploded view of the upper plate and the corner rod of the utility model.

[0018] Figure 3 It is a cross-sectional view of the utility model.

[0019] Figure 4 It is an exploded view of the card block and the card slot of the utility model.

[0020] Figure 5 It is an exploded view of the electrode plate and the lower plate of the utility model.

[0021] In the figure: 1, lower plate, 2, upper plate, 3, electrode plate, 4, elastic member, 5, groove, 6, limit groove, 7, clamping block, 8, clamping slot, 9, slide slot, 10, spring, 11, angle rod. DETAILED DESCRIPTION

[0022] The present invention is described below with specific embodiments, but is not intended to be a limitation of the present invention.

[0023] Embodiment 1

[0024] In this embodiment, a combined connection structure for a lithium iron phosphate battery pack is provided, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes a lower plate 1 and an upper plate 2, and the lower plate 1 and the upper plate 2 are detachably connected. When assembling, the lower plate 1 and the upper plate 2 are separated from each other for convenient assembly and installation. After the installation is completed, the lower plate 1 and the upper plate 2 are connected together, which can fix the battery and make the utility model form a whole, which is convenient for subsequent work. A plurality of electrode plates 3 are arranged on the lower plate 1 and the upper plate 2, and a plurality of elastic members 4 are connected between the electrode plates 3 and the lower plate 1 and the upper plate 2. The battery pack is located between the lower plate 1 and the upper plate 2, and the positive and negative electrodes of the battery are electrically connected to the corresponding electrode plates 3 respectively. Connection, the electrode plate 3 is electrically connected to the external equipment through a cable. After the lower plate 1 and the upper plate 2 are connected together, the battery will be electrically connected to the electrode plate 3. The electrode plate 3 connected to the positive electrode of the battery is provided with a corresponding groove, and the electrode plate 3 connected to the negative electrode of the battery is fixedly connected with a corresponding protrusion, which can make the connection between the electrode plate 3 and the electrode of the battery more stable. The elastic member 4 has a clamping force to press the electrode plate 3 to the battery. Under the action of the clamping force of the elastic member 4, the electrode plate 3 will fit tightly with the electrode of the battery, thereby ensuring the stability of point transmission.

[0025] The multiple electrode plates 3 on the lower plate 1 and the multiple electrode plates 3 on the upper plate 2 are distributed in multiple rows, and the multiple rows of electrode plates 3 are insulated from each other and will not affect each other, which can facilitate installation and maintenance work for staff.

[0026] like Figure 5 As shown, grooves 5 adapted to the electrode plates 3 are provided on the lower plate 1 and the upper plate 2, and the elastic member 4 is located inside the grooves 5. The grooves 5 can limit the electrode plates 3 so that the electrode plates 3 can only slide inside the grooves 5 along the groove walls of the grooves 5, thereby enabling the electrode plates 3 to remain more stable.

[0027] like Figure 3As shown, the elastic member 4 includes two mutually symmetrical spring pieces 401, which can provide a more stable support. The spring piece 401 is in a "U" shape, and one side of its open end is fixedly connected to the groove wall of the groove 5, and the other side is fixedly connected to the electrode plate 3.

[0028] The four corners of the lower plate 1 are fixedly connected with corner rods 11, which are connected to the upper plate 2 by bolts. The four corners of the upper plate 2 are provided with notches adapted to the corner rods 11, and the four corner rods 11 can cooperate with each other to fix the upper plate 2.

[0029] Embodiment 2

[0030] Limiting grooves 6 adapted to the battery are provided on the groove walls on both sides of the opening of the groove 5. After installation, the ends of the battery will be inserted into the limiting grooves 6, so that the battery can be better kept stable after installation.

[0031] Embodiment 3

[0032] like Figure 4 As shown, a clamping block 7 is installed on the upper plate 2, and a clamping groove 8 adapted to the clamping block 7 is opened on the corner rod 11. During installation, the upper plate 2 can be clamped with the corner rod 11 through the clamping block 7, so that the staff can use bolts to connect the upper plate 2 and the corner rod 11 together conveniently.

[0033] The block 7 is slidably connected to the inside of a slide groove 9 provided on the upper plate 2, and a spring 10 is installed between the block 7 and the groove wall of the slide groove 9, one end of the spring 10 is fixedly connected to the block 7, and the other end is fixedly connected to the groove bottom side wall of the slide groove 9. Under the elastic force of the spring 10, the block 7 will be stably engaged with the groove 8. The outer end of the block 7 is a protruding inclined surface in the middle. The setting of the inclined surface of the block 7 can facilitate the staff to install the upper plate 2 between multiple corner rods 11.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A combined connection structure for a lithium iron phosphate battery pack, characterized in that: The invention comprises a lower plate (1) and an upper plate (2), wherein the lower plate (1) and the upper plate (2) are connected in a detachable manner, a plurality of electrode plates (3) are arranged on the lower plate (1) and the upper plate (2), and a plurality of elastic members (4) are connected between the electrode plates (3) and the lower plate (1) and the upper plate (2), a battery pack is located between the lower plate (1) and the upper plate (2), and the positive and negative electrodes of the battery are respectively electrically connected to the corresponding electrode plates (3), and the elastic members (4) have a pressing force for pressing the electrode plates (3) against the battery.

2. The combined connection structure for a lithium iron phosphate battery pack according to claim 1, characterized in that: The multiple electrode plates (3) on the lower plate (1) and the multiple electrode plates (3) on the upper plate (2) are distributed in multiple rows, and the multiple rows of electrode plates (3) are insulated from each other.

3. A combined connection structure for a lithium iron phosphate battery pack according to claim 2, characterized in that: The lower plate (1) and the upper plate (2) are provided with grooves (5) adapted to the electrode plate (3), and the elastic member (4) is located inside the grooves (5).

4. A combined connection structure for a lithium iron phosphate battery pack according to claim 3, characterized in that: Limiting grooves (6) adapted to the battery are provided on the groove walls on both sides of the opening of the groove (5).

5. The combined connection structure for a lithium iron phosphate battery pack according to claim 3, characterized in that: The elastic member (4) comprises two symmetrical spring sheets (401), the spring sheet (401) being in a "U" shape, with one side of its open end being fixedly connected to the groove wall of the groove (5), and the other side being fixedly connected to the electrode plate (3).

6. The combined connection structure for a lithium iron phosphate battery pack according to claim 1, characterized in that: Corner bars (11) are fixedly connected at the four corners of the lower plate (1), and the corner bars (11) are connected to the upper plate (2) via bolts.

7. A combined connection structure for a lithium iron phosphate battery pack according to claim 6, characterized in that: A clamping block (7) is installed on the upper plate (2), and a clamping slot (8) adapted to the clamping block (7) is provided on the corner bar (11).

8. The combined connection structure for a lithium iron phosphate battery pack according to claim 7, characterized in that: The clamping block (7) is slidably connected to the inside of a slide groove (9) provided on the upper plate (2), and a spring (10) is installed between the clamping block (7) and the groove wall of the slide groove (9), and the outer end of the clamping block (7) is a middle protruding inclined surface.

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