Integrated lithium polymer battery pack

Abstract

The utility model belongs to the technical field of lithium polymer battery packs, and particularly relates to an integrated lithium polymer battery pack which comprises a plurality of battery holders spliced in sequence, a battery body is clamped and mounted on each battery holder, a positive pole connecting column and a negative pole connecting column are arranged on the same side of two ends of each battery holder, and the positive pole connecting column and the negative pole connecting column are used for electric connection. A positive electrode connecting hole and a negative electrode connecting hole which are used for plugging are formed in one side, deviating from the positive electrode connecting column and the negative electrode connecting column, of each battery holder, and movable contacts which are electrically connected with the positive electrode connecting column and the negative electrode connecting column are arranged in the positive electrode connecting holes and the negative electrode connecting holes; according to the utility model, the plurality of battery holders which can be spliced are additionally arranged, so that when the battery bodies are connected in series, the battery bodies can be prevented from being damaged by connecting the plurality of battery holders in series, the service life of the battery bodies is prolonged, and meanwhile, the maintenance cost of the battery pack is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lithium polymer battery pack technical field, concretely relates to an integrated lithium polymer battery pack. BACKGROUND

[0002] Lithium polymer battery pack is a plurality of lithium polymer batteries in series, and the lithium polymer battery is mainly composed of a positive electrode, a negative electrode, an electrolyte, a diaphragm and a shell.

[0003] The existing lithium polymer battery is generally a cylindrical shell, and the lithium polymer battery pack is placed together in parallel during assembly, and the positive electrode strip and the negative electrode strip are welded on the positive electrode and the negative electrode of the lithium polymer battery by a welding gun. When one of the lithium polymer batteries is damaged, the positive electrode sheet and the negative electrode sheet need to be removed from the end of the lithium polymer battery, and the new lithium polymer battery is welded again after being placed. During multiple welding, the end of the lithium polymer battery is broken, which increases the installation risk of the battery pack and increases the cost of replacing the battery pack. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing an integrated lithium polymer battery pack to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: an integrated lithium polymer battery pack, comprising: a plurality of battery seats connected in sequence, each battery seat is clamped and installed with a battery body, the same side of both ends of each battery seat is provided with a positive electrode connecting column and a negative electrode connecting column for electrical connection, the side of each battery seat away from the positive electrode connecting column and the negative electrode connecting column is provided with a positive electrode connecting hole and a negative electrode connecting hole for insertion, the positive electrode connecting hole and the negative electrode connecting hole are provided with movable contacts electrically connected with the positive electrode connecting column and the negative electrode connecting column, and the positive electrode connecting column and the negative electrode connecting column are respectively abutted on two movable contacts when two adjacent battery seats are connected.

[0006] Preferably, the positive electrode connecting column and the negative electrode connecting column are further provided with flexible wires between the two movable contacts, the positive electrode connecting hole and the negative electrode connecting hole are provided with springs connected with the movable contacts on the same side, and the springs are sleeved outside the wires.

[0007] Preferably, the side of each battery seat is provided with a battery compartment, the two ends of the battery compartment are provided with contact pieces, each contact piece is connected with a wire between the wire on the same end, and the two contact pieces form a clamping area for clamping the battery body.

[0008] Preferably, the outer side of one end of the positive electrode connecting column or the negative electrode connecting column is provided with a limiting block for positioning, and the positive electrode connecting hole or the negative electrode connecting hole is provided with a limiting groove for inserting the limiting block.

[0009] Preferably, the battery holder is provided with at least two connecting posts on one side for connection, and the side of the battery holder away from the connecting holder is provided with connecting holes for accommodating the connecting posts.

[0010] Preferably, two buckle grooves are symmetrically provided on one side of the battery holder, and one end of each of the two buckle grooves extends into the battery compartment.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] (1) The utility model discloses a plurality of splicable battery holders, which can avoid damaging the battery body when the battery body is connected in series, improve the service life of the battery body, and reduce the maintenance cost of the battery pack.

[0013] (2) The utility model discloses wires and springs, which can avoid the virtual connection between adjacent battery holders when the positive and negative connecting posts are inserted into the positive and negative connecting holes.

[0014] (3) The utility model discloses two bendable contact pieces, which can detachably clamp and install the battery body on the battery holder, thereby facilitating the replacement of the battery body. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model;

[0016] Figure 2 It is a first side view of the battery holder of the utility model;

[0017] Figure 3 It is a second side view of the battery holder of the utility model;

[0018] Figure 4 It is a top view of the utility model;

[0019] Figure 5 It is Figure 4 It is an enlarged view of A-A;

[0020] Figure 6 It is a matching schematic view of the positive and negative connecting posts, positive and negative connecting holes of the utility model;

[0021] In the figure: 1, negative connecting post; 2, buckle groove; 3, connecting post; 4, positive connecting post; 5, limiting block; 6, battery holder; 7, battery compartment; 8, contact piece; 9, battery body; 10, movable contact; 11, limiting groove; 12, positive connecting hole; 13, connecting hole; 14, negative connecting hole; 15, connecting wire; 16, wire; 17, spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] refer to Figure 1 and Figure 6 As shown, the present invention provides an integrated lithium polymer battery pack, comprising: a plurality of battery holders 6 sequentially spliced ​​together, each battery holder 6 having a battery body 9 clamped and installed on each battery holder 6, each battery holder 6 having a positive terminal 4 and a negative terminal 1 for electrical connection on the same side at both ends, each battery holder 6 having a positive terminal hole 12 and a negative terminal hole 14 for insertion on the side away from the positive terminal hole 4 and the negative terminal hole 14, each positive terminal hole 12 and the negative terminal hole 14 having a movable contact 10 for electrical connection with the positive terminal hole 4 and the negative terminal hole 1, and when two adjacent battery holders 6 are spliced ​​together, the positive terminal hole 4 and the negative terminal hole 1 respectively abut against the two movable contacts 10.

[0024] As described above, when using the multiple battery holders 6 provided by this utility model, each battery holder 6 is spliced ​​together through a positive terminal hole 12, a negative terminal hole 14, a positive terminal post 4, a negative terminal post 1 and two movable contacts 10, and the series connection between adjacent battery holders 6 is completed. Multiple battery bodies 9 are respectively installed on the corresponding battery holders 6, thereby forming a battery pack from multiple battery holders 6.

[0025] Furthermore, to improve the stability of the connection between the positive terminal 4, the negative terminal 1, and the positive terminal 12 and the negative terminal 14, refer to Figure 6 As shown, a flexible wire 16 is provided between the positive terminal 4 and the negative terminal 1 and the two movable contacts 10. A spring 17 connected to the movable contact 10 on the same side is provided in both the positive terminal hole 12 and the negative terminal hole 14, and the spring 17 is sleeved outside the wire 16. When two adjacent battery holders 6 are connected, the positive terminal 4 and the negative terminal are inserted into the positive terminal hole 12 and the negative terminal hole 14 respectively. At this time, the movable contact 10, through the elastic force of the spring 17, always abuts against the inserted positive terminal 4 and negative terminal 1, thereby completing the series connection of adjacent battery holders 6 and preventing loose connections between adjacent battery holders 6.

[0026] Furthermore, to facilitate the installation of the battery body 9 in the battery holder 6, refer to... Figure 6As shown in the drawings, each battery seat 6 is provided with a battery compartment 7 on one side, and each battery compartment 7 is provided with a contact piece 8 at both ends. Each contact piece 8 is connected with a connecting wire 15 between the same end and the wire 16, and a clamping area for clamping the battery body 9 is formed between the two contact pieces 8. When the two contact pieces 8 are not forced, the distance between the two contact pieces 8 is less than the length of the battery body 9. When the battery body 9 is placed between the two contact pieces 8, the contact pieces 8 are deformed, thereby clamping the battery body 9 in the battery compartment 7. At this time, the positive pole and the negative pole of the battery body 9 are electrically connected with the positive pole connecting column 4 and the negative pole connecting column 1 through the two contact pieces 8.

[0027] Further, in order to avoid the positive pole connecting column 4 and the negative pole connecting column 1 being connected reversely between the adjacent battery seats 6, referring to Figures 1-4 and Figure 6 As shown, a limiting block 5 for positioning is arranged at one end of the positive pole connecting column 4 or the negative pole connecting column 1, and a limiting slot 11 for inserting the limiting block 5 is arranged in the positive pole connecting hole 12 or the negative pole connecting hole 14. The limiting block 5 and the limiting slot 11 allow the positive pole connecting column 4 to be inserted only into the positive pole connecting hole 12, and the positive pole connecting column 4 cannot be inserted into the negative pole connecting column 1.

[0028] Further, in order to improve the stability of the splicing between the adjacent battery seats 6, referring to Figures 1-4 and Figure 6 As shown, at least two connecting columns 3 for connection are arranged on one side of the battery seat 6, and a connecting hole 13 for accommodating the insertion of the connecting column 3 is arranged on the side of the battery seat 6 away from the connecting seat, and a convex ring is arranged at the end of the connecting column 3 to be clamped in the connecting hole 13. When the two adjacent battery seats 6 are spliced, the connecting column 3 is inserted into the connecting hole 13, and at this time the connecting column 3 is clamped in the connecting hole 13 through the convex ring, thereby increasing the stability of the splicing of the adjacent battery seats 6.

[0029] Further, in order to facilitate the removal of the battery body 9 from the battery compartment 7, referring to Figures 1-6 As shown, two buckle grooves 2 are symmetrically arranged on one side of the battery seat 6, and one end of each buckle groove 2 extends into the battery compartment 7. The buckle groove 2 facilitates the hand clamping of the battery body 9 in the battery compartment 7, and the battery body 9 can be removed from the battery compartment 7 after overcoming the clamping force of the contact piece 8 on the battery body 9.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An integrated lithium polymer battery pack, characterized in that, include: Multiple battery holders (6) are spliced ​​together in sequence. Each battery holder (6) holds and installs a battery body (9). Each battery holder (6) has a positive terminal (4) and a negative terminal (1) for electrical connection on the same side at both ends. Each battery holder (6) has a positive terminal hole (12) and a negative terminal hole (14) for insertion on the side away from the positive terminal hole (4) and the negative terminal hole (14). Each positive terminal hole (12) and the negative terminal hole (14) is provided with a movable contact (10) for electrical connection with the positive terminal hole (4) and the negative terminal hole (1). When two adjacent battery holders (6) are spliced ​​together, the positive terminal hole (4) and the negative terminal hole (1) abut against the two movable contacts (10) respectively.

2. The integrated lithium polymer battery pack according to claim 1, characterized in that: A flexible wire (16) is provided between the positive terminal (4) and the negative terminal (1) and the two movable contacts (10). A spring (17) connected to the movable contact (10) on the same side is provided in both the positive terminal hole (12) and the negative terminal hole (14), and the spring (17) is sleeved on the outside of the wire (16).

3. An integrated lithium polymer battery pack according to claim 2, characterized in that: Each of the battery holders (6) has a battery compartment (7) on one side, and each of the battery compartments (7) has a contact piece (8) at both ends. Each contact piece (8) is connected to a connecting wire (15) at the same end of the wire (16), and a clamping area for clamping the battery body (9) is formed between the two contact pieces (8).

4. An integrated lithium polymer battery pack according to claim 1, characterized in that: The positive terminal (4) or negative terminal (1) has a positioning block (5) on its outer side, and the positive terminal hole (12) or negative terminal hole (14) has a positioning groove (11) for the insertion of the positioning block (5).

5. An integrated lithium polymer battery pack according to claim 1, characterized in that: The battery holder (6) has at least two connecting posts (3) for connection on one side. The battery holder (6) has a connecting hole (13) on the side away from the connecting seat to accommodate the insertion of the connecting post (3). The end of the connecting post (3) has a protruding ring that engages in the connecting hole (13).

6. An integrated lithium polymer battery pack according to claim 3, characterized in that: Two buckle slots (2) are symmetrically provided on one side of the battery holder (6), and one end of each buckle slot (2) extends into the battery compartment (7).

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