Splicing type lithium battery unit

Abstract

The utility model provides a splicable lithium battery unit, and relates to the technical field of lithium batteries, the splicable lithium battery unit comprises a lithium battery shell, one side of the lithium battery shell is fixedly connected with a first connecting plate, the first connecting plate is provided with a slot, and a fastening bolt is arranged between the slot and the first connecting plate; the other side of the lithium battery shell is fixedly connected with a second connecting plate matched with the first connecting plate, and a connecting hole is formed in the second connecting plate. According to the invention, through arrangement of the first connecting plate, the slot, the fastening bolt, the second connecting plate and the connecting hole, splicing of two applications can be realized, so that a user can freely select and splice different numbers of applications, customized configuration of voltage and capacity is realized, use requirements of different scenes are met, and the use experience of the user is improved. And the flexibility and the applicability of the method are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery technical field, specifically, relate to a kind of splicing type lithium battery unit. BACKGROUND

[0002] With the rapid development of science and technology and the in-depth practice of global sustainable development concept, efficient and environmentally friendly energy storage technology becomes the key to promote the transformation and upgrading of various industries. Lithium battery, as a kind of high-performance and long-life secondary battery, has been widely used in many fields due to its high energy density, no memory effect, small self-discharge and other advantages. However, with the diversification of application demand, the design limitations of traditional lithium battery pack gradually appear.

[0003] Traditional lithium battery pack usually adopts fixed structure, and once production is completed, its voltage level, capacity and other key parameters are difficult to adjust, which leads to the need for customizing different specifications of battery pack when dealing with different application scenarios, increasing production cost and limiting the wide application of products. In addition, with the progress of technology and changes in market demand, the performance requirements of battery pack are constantly improving, and traditional design often cannot adapt to such dynamic changes. Therefore, we improve it and propose a splicing type lithium battery unit. SUMMARY

[0004] The utility model aims at: the traditional lithium battery pack usually adopts fixed structure, and the problem that different specifications of battery pack need to be customized when dealing with different application scenarios.

[0005] In order to realize the above-mentioned invention purpose, the utility model provides splicing type lithium battery unit to improve the above-mentioned problem.

[0006] The application is as follows:

[0007] A splicing type lithium battery unit, comprising a lithium battery shell, a first connecting plate is fixedly connected to one side of the lithium battery shell, a slot is formed in the first connecting plate, and a fastening bolt is arranged between the slot and the first connecting plate, a second connecting plate adapted to the first connecting plate is fixedly connected to the other side of the lithium battery shell, and a connecting hole is formed in the second connecting plate.

[0008] As a preferred technical scheme of the application, a groove is formed in one side of the first connecting plate, and the head of the fastening bolt is located in the groove.

[0009] As a preferred technical scheme of the application, a threaded end is arranged at the end of the fastening bolt away from the groove, and the threaded end of the fastening bolt is threadedly connected with the first connecting plate.

[0010] As a preferred technical scheme of the present application, the part of the outer surface of the first connecting plate located in the slot is smooth.

[0011] As a preferred technical scheme of the present application, the side of the first connecting plate away from the lithium battery shell is provided with a plurality of heat dissipation grooves.

[0012] As a preferred technical scheme of the present application, the lithium battery shell is provided with a lithium battery, and the lithium battery has two tabs, one end of each of the two tabs extending out of the lithium battery shell and extending to the top of the lithium battery shell.

[0013] As a preferred technical scheme of the present application, a connecting groove is formed in the tab, and a fixing bolt is threadedly connected between the tab and the connecting groove.

[0014] As a preferred technical scheme of the present application, a side opening is formed in the side wall of the connecting groove.

[0015] As a preferred technical scheme of the present application, the top of the lithium battery shell is provided with two protective members for protecting the tabs.

[0016] As a preferred technical scheme of the present application, the protective member includes two threaded grooves formed in the top of the lithium battery shell, a locking bolt is arranged between the lithium battery shell and one of the threaded grooves, the outer surface of the locking bolt is provided with a protective cover, and the bottom of the protective cover is provided with a protective groove.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] In the scheme of the present application:

[0019] In order to solve the problem that the conventional lithium battery pack usually adopts a fixed structure, and needs to be customized with different specifications when dealing with different application scenarios, the first connecting plate, the slot, the fastening bolt, the second connecting plate and the connecting hole are arranged, so that the two applications can be spliced, the user can freely select and splice different number of applications, the customization configuration of voltage and capacity is realized, the use demand of different scenes is met, and the flexibility and applicability of the application are improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The structure schematic view of the splicable lithium battery unit provided by the present application is shown in the figure;

[0021] Figure 2 The rear view structure schematic view of the splicable lithium battery unit provided by the present application is shown in the figure; Figure 1

[0022] Figure 3 ​The structure diagram of the thread groove of the splicable lithium battery unit provided in the present application is shown in the figure.

[0023] Figure 4 The structure diagram of the protection of the tab by the protective cover of the splicable lithium battery unit provided in the present application is shown in the figure.

[0024] Figure 5 The structure diagram of the splicable lithium battery unit after splicing provided in the present application is shown in the figure.

[0025] The figure shows:

[0026] 1, lithium battery shell; 101, tab;

[0027] 2, first connecting plate; 201, insertion slot; 202, fastening bolt; 204, second connecting plate; 205, connecting hole; 206, groove; 207, heat dissipation groove;

[0028] 3, connecting groove; 301, fixing bolt; 302, side opening;

[0029] 4, thread groove; 401, protective cover; 402, protection groove; 403, locking bolt. DETAILED DESCRIPTION

[0030] In order to make the person skilled in the art better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0031] As described in the background, the traditional lithium battery pack usually adopts a fixed structure, and once the production is completed, the key parameters such as voltage level and capacity are difficult to adjust, which leads to the need to customize different specifications of battery packs when dealing with different application scenarios, which not only increases the production cost, but also limits the wide application of products. In addition, with the progress of technology and the change of market demand, the performance requirements of the battery pack are also constantly improving, and the traditional design is often difficult to adapt to such dynamic changes.

[0032] In order to solve this technical problem, the present application provides a splicable lithium battery unit.

[0033] Specifically, please refer to Figures 1-4 The splicable lithium battery unit specifically includes:

[0034] The lithium battery shell 1 is fixedly connected with the first connecting plate 2 on one side, the first connecting plate 2 is provided with the insertion slot 201, and the insertion slot 201 is provided with the fastening bolt 202 between the first connecting plate 2; the other side of the lithium battery shell 1 is fixedly connected with the second connecting plate 204 matched with the first connecting plate 2, and the second connecting plate 204 is provided with the connecting hole 205.

[0035] The lithium battery unit can be spliced, the user can freely select and splice different numbers of the lithium battery unit, the customization configuration of voltage and capacity is realized, the use requirement of different scenes is met, and the flexibility and applicability of the lithium battery unit are improved.

[0036] In order to enable the personnel in the technical field to better understand the scheme of the utility model, the technical scheme in the embodiment of the utility model will be clearly and completely described below in combination with the drawings.

[0037] It should be noted that the embodiments in the utility model and the features and technical schemes in the embodiments can be combined with each other without conflict.

[0038] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the following drawings.

[0039] Embodiment 1, please refer to Figures 1-4 A lithium battery unit can be spliced, the user can freely select and splice different numbers of the lithium battery unit, the customization configuration of voltage and capacity is realized, the use requirement of different scenes is met, and the flexibility and applicability of the lithium battery unit are improved.

[0040] When splicing, the fastening bolt 202 is first removed, then the second connecting plate 204 in one of the lithium battery units is inserted into the insertion slot 201 in the other lithium battery unit, and then the fastening bolt 202 is screwed to pass through the corresponding connecting hole 205.

[0041] Further, asFigure 1 As shown in the drawings, one side of the first connecting plate 2 is provided with a groove 206, and the head of the fastening bolt 202 is located in the groove 206. The groove 206 can avoid the head of the fastening bolt 202 from protruding.

[0042] Further, the end of the fastening bolt 202 away from the groove 206 is provided with a threaded end, and the threaded end of the fastening bolt 202 is screwed with the first connecting plate 2. Rotating the fastening bolt 202 can separate the threaded end of the fastening bolt 202 from the first connecting plate 2. Then, pulling the fastening bolt 202 can separate the fastening bolt 202 from the first connecting plate 2, and the fastening bolt 202 can be removed.

[0043] Further, the part of the outer surface of the first connecting plate 2 located in the slot 201 is provided with a smooth surface. This setting can hold the fastening bolt 202 when moving the application, that is, the fastening bolt 202 can be used as a handle to facilitate the movement of the application.

[0044] Further, as shown in the drawings, Figure 1 The first connecting plate 2 away from the lithium battery shell 1 side is provided with a plurality of heat dissipation grooves 207. The heat dissipation grooves 207 can leave a heat dissipation channel between the adjacent two lithium battery shells 1 after splicing, so as to facilitate heat dissipation.

[0045] In embodiment 2, the splicable lithium battery unit provided in embodiment 1 is further optimized. Specifically, as shown in the drawings, Figure 1 The lithium battery shell 1 is provided with a lithium battery. The lithium battery has two tabs 101. One end of the two tabs 101 extends out of the lithium battery shell 1 and extends to the top of the lithium battery shell 1.

[0046] Further, as shown in the drawings, Figure 3 The tab 101 is provided with a connecting groove 3. The tab 101 and the connecting groove 3 are screwed with a fixing bolt 301. After splicing, when the corresponding tabs 101 need to be connected together, a connecting wire can be used to pass through the connecting groove 3 and tighten the fixing bolt 301 to connect the connecting wire and the tab 101.

[0047] Further, as shown in the drawings, Figure 3 The side wall of the connecting groove 3 is provided with a side opening 302. The side opening 302 can make the longer connecting wire enter the connecting groove 3 from the side opening 302, which is convenient to use.

[0048] In embodiment 3, the splicable lithium battery unit provided in embodiment 2 is further optimized. Specifically, as shown in the drawings, Figures 1-4 The top of the lithium battery shell 1 is provided with two protective pieces. The protective pieces are used to protect the tabs 101 and reduce the damage of the tabs 101 caused by knocking.

[0049] Further, as shown in Figure 2 and Figure 3 The protection piece includes two threaded grooves 4 arranged on the top of the lithium battery shell 1, a locking bolt 403 is arranged between the lithium battery shell 1 and one of the threaded grooves 4, the outer surface of the locking bolt 403 is provided with a protection cover 401, the bottom of the protection cover 401 is provided with a protection groove 402, when the single application is transported, the tab 101 is covered by the threaded groove 4 and the protection groove 402, and the tab 101 can be better protected, and after splicing, the protection cover 401 is moved to the side to expose the tab 101, and the top of the protection cover 401 is higher than the top of the fixing bolt 301, so that the protection cover 401 can also protect the tab 101.

[0050] In the present application, unless otherwise clearly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected or can communicate with each other; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0051] Obviously, the above-described embodiments are only some embodiments of the present application, not all embodiments. The preferred embodiments of the present application are shown in the drawings, but do not limit the patent scope of the present application. The present application can be realized in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some technical features. Any equivalent structure made by using the content of the present application specification and drawings, directly or indirectly applied to other related technical fields, is also within the patent protection scope of the present application.

Claims

1. A splicable lithium battery cell, characterized by, Including lithium battery shell (1), one side of the lithium battery shell (1) is fixedly connected with the first connecting plate (2), the first connecting plate (2) is provided with the insertion slot (201), and the insertion slot (201) is provided with the fastening bolt (202) between the first connecting plate (2), the other side of the lithium battery shell (1) is fixedly connected with the second connecting plate (204) matched with the first connecting plate (2), and the second connecting plate (204) is provided with the connecting hole (205).

2. The splicable lithium battery cell of claim 1, wherein, The first connecting plate (2) is provided with a recess (206) on one side, and the head of the fastening bolt (202) is located in the recess (206).

3. The splicable lithium battery cell of claim 2, wherein, The fastening bolt (202) is provided with a threaded end away from the recess (206), and the threaded end of the fastening bolt (202) is screwed with the first connecting plate (2).

4. The splicable lithium battery cell of claim 3, wherein, The part of the outer surface of the first connecting plate (2) in the insertion slot (201) is smooth.

5. A splicable lithium battery cell according to claim 4, wherein, The first connecting plate (2) is provided with a plurality of heat dissipation grooves (207) away from the lithium battery shell (1).

6. A splicable lithium battery cell according to claim 5, wherein, The lithium battery shell (1) is provided with a lithium battery, and the lithium battery has two tabs (101), one end of the two tabs (101) extends to the top of the lithium battery shell (1).

7. A splicable lithium battery cell according to claim 6, wherein, The tab (101) is provided with a connecting groove (3), and the tab (101) and the connecting groove (3) are screwed with a fixing bolt (301).

8. The splicable lithium battery cell of claim 7, wherein, The side wall of the connecting groove (3) is provided with a side opening (302).

9. A splicable lithium battery cell according to claim 8, wherein, The top of the lithium battery shell (1) is provided with two protective members for protecting the tab (101).

10. The splicable lithium battery cell of claim 9, wherein, The protective member includes two threaded grooves (4) provided in the top of the lithium battery shell (1), one of the threaded grooves (4) is provided with a locking bolt (403) between the lithium battery shell (1), and the outer surface of the locking bolt (403) is provided with a protective cover (401), and the bottom of the protective cover (401) is provided with a protective groove (402).

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