Annular battery

Abstract

The utility model relates to the technical field of annular batteries, and discloses an annular battery, a fixing mechanism is arranged on a first protective shell and a second protective shell, a core rolling mechanism is arranged on the fixing mechanism, the fixing mechanism comprises an external thread and a connecting seat, the external thread is arranged on the upper side surface of the first protective shell, and an internal thread is arranged on the inner ring of the second protective shell. Sliding rods are fixedly connected to the two sides of the inner wall of the connecting base, sliding blocks are slidably connected to the two sides of the surface of each sliding rod, and elastic pieces are fixedly connected to the tops of the sliding blocks. According to the annular battery, the tabs are inserted into the placement grooves and are arranged between the two elastic pieces, the elastic pieces drive the sliding blocks to slide on the surfaces of the sliding rods under the bounce of the elastic pieces, and the elastic pieces can clamp and fix the tabs, so that a new tab can be conveniently and firmly placed on one side of the corresponding pole piece, and the tabs can be replaced at any time; and the first protective shell and the second protective shell are arranged on the outer side of the battery, so that an explosion-proof effect can be achieved to a certain extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to annular battery technical field, concretely is annular battery. BACKGROUND

[0002] Aiming at the unique demand of annular digital product such as bracelet, electronic bracelet, we specially customize and produce a kind of circular battery. This battery uses innovative winding process and precision forming technology, thereby successfully making the battery that meets annular design

[0003] Since the battery is combined by pole piece and tab, and the tab is pasted at one end of the pole piece, the tab is easily damaged when the battery is directly exposed, in order to effectively protect the battery, we can add a protective shell on the outside of the battery, so that the tab can be safely extended from the inside of the shell. However, it is worth noting that once the tab is damaged, the entire product needs to be replaced according to the traditional method, which will undoubtedly cause unnecessary waste of resources and loss. UTILITY MODEL CONTENT

[0004] The utility model aims at providing annular battery to solve the problems in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: annular battery, including first protective shell and second protective shell, first protective shell and second protective shell are provided with fixing mechanism, fixing mechanism is provided with roll core mechanism on it;

[0006] The fixing mechanism includes external threads and connecting seat, the connecting seat is two in number, the external threads are opened on the upper surface of the first protective shell, the second protective shell inner ring is provided with internal threads, the connecting seat is internally provided with a placing groove, the top of the placing groove is provided with an opening, the inner wall of the connecting seat is fixedly connected with a sliding rod on both sides, the sliding rod surface is slidably connected with a sliding block on both sides, and the sliding block top is fixedly connected with a spring piece.

[0007] Preferably, the number of spring pieces is four and two by two is a group, the outer side of two spring pieces is fixedly connected with the inner wall of the placing groove respectively, the spring piece clamps and fixes the tab, so that the new tab can be placed on one side of the pole piece more firmly, and the tab can be replaced at any time.

[0008] Preferably, the second protective shell is arranged on the upper surface of the first protective shell, and the external threads and the internal threads are threadedly connected.

[0009] Preferably, the roll core mechanism comprises a support frame and a tab, the number of the tab is two, the support frame is arranged inside the first protective shell and the second protective shell, the surface of the support frame is sleeved with a pole piece, the surface of the pole piece is provided with a diaphragm, the bottom of the support frame is fixedly connected with an aluminum plastic film lower shell, the top of the support frame is fixedly connected with an aluminum plastic film upper shell, the top of the aluminum plastic film upper shell is fixedly connected with an air bag, and the support frame is made of high-density PP, high-density PE or Teflon, so as to prevent corrosion by electrolyte and have good mechanical properties, so that deformation and other problems do not occur in long-term use.

[0010] Preferably, the surface of the pole piece is fixedly connected with a connecting seat, the surfaces of the two tabs are inserted into the placing grooves, and the tab is arranged between the two elastic sheets.

[0011] Preferably, the aluminum plastic film lower shell and the aluminum plastic film upper shell are arranged on the two sides of the pole piece respectively, and the aluminum plastic film lower shell and the aluminum plastic film upper shell are arranged on the inner sides of the first protective shell and the second protective shell.

[0012] Preferably, the second protective shell is internally provided with a through groove, and the surface of the tab is inserted into the through groove arranged in the second protective shell.

[0013] Compared with the prior art, the annular battery has the following beneficial effects:

[0014] 1. The annular battery, through the fixing mechanism, the tab is inserted into the placing groove, and the tab is arranged between the two elastic sheets, under the rebounding force of the elastic sheets, the elastic sheets drive the sliding blocks to slide on the surface of the sliding rods, and the elastic sheets can also clamp and fix the tab, so that the new tab can be placed on one side of the pole piece more firmly, and the tab can be replaced at any time.

[0015] 2. The annular battery, the roll core, the aluminum plastic film lower shell and the aluminum plastic film upper shell are packaged together through heat sealing, after the formation of the battery core is completed, the excess aluminum plastic film lower shell and the aluminum plastic film upper shell are cut off by using a ring cutter, the edge of the battery is extended by using a embossing jig, and finally the edge is collected to the edge of the main body to obtain an annular battery.

[0016] 3. The ring-shaped battery, the solution is a multi-battery series-parallel solution or an arc-shaped battery, which improves the space waste caused by multi-battery production, improves the energy density, can save the cost of the capacity balancing system of the multi-battery, optimizes the risk of reducing the safety performance caused by the complexity of the multi-battery series-parallel connection, and does not directly extrude the winding core during the production process of the winding core, so that the process yield can be obviously improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 It is the overall structure of the present application;

[0019] Figure 2 It is the overall structure of the present application;

[0020] Figure 3 It is the structure diagram of the winding core of the battery cell;

[0021] Figure 4 It is the split schematic diagram of the battery cell packaging structure;

[0022] Figure 5 It is the split structure schematic diagram of the first protective shell and the second protective shell;

[0023] Figure 6 It is Figure 3 It is the enlarged structure schematic diagram of A in the middle.

[0024] In the figure: 1, first protective shell; 2, second protective shell; 3, fixing mechanism; 31, external thread; 32, internal thread; 33, placing groove; 34, sliding block; 35, elastic sheet; 36, sliding rod; 37, connecting seat; 4, winding core mechanism; 41, lower aluminum-plastic film shell; 42, upper aluminum-plastic film shell; 43, air bag; 44, tab; 45, support frame; 46, pole piece; 47, diaphragm. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0026] In the utility model, unless another explicit provision and limitation, the terms "mount", "connect", "connect", "fix" and the like terms should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two element interaction relationship.For ordinary skilled in the art, the above terms can be understood according to the specific meaning of the utility model.

[0027] The utility model provides the following technical scheme:

[0028] Embodiment one

[0029] Combined Figures 1 to 4 , annular battery, including first protective shell 1 and second protective shell 2, first protective shell 1 and second protective shell 2 are provided with fixing mechanism 3, and fixing mechanism 3 is provided with roll core mechanism 4;

[0030] Fixing mechanism 3 includes outer thread 31 and connecting seat 37, the number of connecting seat 37 is two, outer thread 31 is opened in the upper side surface of first protective shell 1, and second protective shell 2 inner ring is provided with inner thread 32, and connecting seat 37 is internally provided with placing groove 33, the top of placing groove 33 is provided as an opening, the inner wall both sides of connecting seat 37 are fixedly connected with slide rod 36, and the surface both sides of slide rod 36 are slidably connected with sliding block 34, and the top of sliding block 34 is fixedly connected with spring piece 35;

[0031] The number of spring piece 35 is four and two two are a group, two spring pieces 35 outer sides are fixedly connected with the inner wall of placing groove 33 respectively, second protective shell 2 is arranged on the upper side surface of first protective shell 1, and outer thread 31 and inner thread 32 are screw connected.

[0032] Further, the tab 44 is inserted into the placing groove 33, and the tab 44 is arranged between the two spring pieces 35, under the rebound force of the spring piece 35, the spring piece 35 drives the sliding block 34 to slide on the surface of the slide rod 36, and the spring piece 35 can also clamp and fix the tab 44, that is, the new tab 44 can be placed on one side of the pole piece 46 more firmly, and the tab 44 can also be replaced at any time, the first protective shell 1 and the second protective shell 2 are arranged on the outer side of the battery, which can achieve the effect of explosion-proof to a certain extent.

[0033] Embodiment two

[0034] Reference Figures 1-6And on the basis of embodiment one, further obtained roll core mechanism 4 includes support frame 45 and tab 44, the number of tab 44 is two, support frame 45 is arranged inside first protective shell 1 and second protective shell 2, support frame 45 surface sleeve joint has pole piece 46, pole piece 46 surface is provided with diaphragm 47, support frame 45 bottom fixedly connected with aluminum plastic film lower shell 41, support frame 45 top fixedly connected with aluminum plastic film upper shell 42, aluminum plastic film upper shell 42 top fixedly connected with air bag 43;

[0035] Pole piece 46 surface and connecting seat 37 fixedly connected, two tab 44 surface and the inside plug-in of placing groove 33, tab 44 is arranged between two elastic sheet 35, aluminum plastic film lower shell 41 and aluminum plastic film upper shell 42 are arranged on the both sides of pole piece 46, aluminum plastic film lower shell 41 and aluminum plastic film upper shell 42 are arranged inside first protective shell 1 and second protective shell 2, second protective shell 2 inside is provided with through groove, tab 44 surface is inserted in the through groove of second protective shell 2 inside.

[0036] Further, roll core and aluminum plastic film lower shell 41 and aluminum plastic film upper shell 42 are packaged together by heat sealing, after the completion of the formation of the battery core, the excess aluminum plastic film lower shell 41 and aluminum plastic film upper shell 42 are cut off using a circular cutter, the battery edge is extended using a embossing jig and finally the edge is collected to the edge of the main body to obtain a circular battery.

[0037] In actual operation process, when the device is used, support frame 45 is selected from high density PP, high density PE or iron fluorine long material, so as to prevent corrosion by electrolyte and have good mechanical properties, so that it does not deform and other problems in long-term use, the roll core composed of support frame 45, pole piece 46 and diaphragm 47 is packaged together with aluminum plastic film lower shell 41 and aluminum plastic film upper shell 42 by heat sealing, after the completion of the formation of the battery core, the excess aluminum plastic film lower shell 41 and aluminum plastic film upper shell 42 are cut off using a circular cutter, the battery edge is extended using a embossing jig and finally the edge is collected to the edge of the main body to obtain a circular battery;

[0038] First protective shell 1 and second protective shell 2 are respectively arranged outside aluminum plastic film lower shell 41 and aluminum plastic film upper shell 42, outer thread 31 and inner thread 32 are screw connected, first protective shell 1 and second protective shell 2 are arranged outside the battery, which can achieve the effect of explosion-proof to a certain extent;

[0039] Once the tab 44 is damaged, it needs to be replaced regularly. The tab 44 can be inserted into the placing groove 33, and the tab 44 is arranged between the two elastic sheets 35. Under the rebound force of the elastic sheets 35, the elastic sheets 35 drive the sliding block 34 to slide on the surface of the sliding rod 36, and the elastic sheets 35 can clamp and fix the tab 44. Therefore, the new tab 44 can be placed on one side of the pole piece 46 more firmly, and the tab 44 can be replaced at any time.

[0040] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... " does not, without more constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

Claims

1. A ring battery comprising a first protective casing (1) and a second protective casing (2), characterized in that: The first protective shell (1) and the second protective shell (2) are provided with a fixing mechanism (3), and the fixing mechanism (3) is provided with a winding core mechanism (4); The fixing mechanism (3) comprises an outer thread (31) and a connecting seat (37), the connecting seat (37) is in number of two, the outer thread (31) is arranged on the upper surface of the first protective shell (1), the second protective shell (2) is provided with an inner thread (32) in the inner ring, the connecting seat (37) is provided with a placing groove (33) in the inner wall, the top of the placing groove (33) is provided with an opening, the inner wall of the connecting seat (37) is fixedly connected with a sliding rod (36), and the sliding rod (36) is slidably connected with a sliding block (34) on the two sides of the surface.

2. The ring cell of claim 1, wherein: The number of the elastic sheet (35) is four, and two of them form a group.

3. The ring cell of claim 1, wherein: The second protective shell (2) is arranged on the upper surface of the first protective shell (1), and the outer thread (31) and the inner thread (32) are threadedly connected.

4. The ring cell of claim 1, wherein: The winding core mechanism (4) comprises a support frame (45) and a tab (44), the number of the tab (44) is two, the support frame (45) is arranged in the first protective shell (1) and the second protective shell (2), the support frame (45) is provided with a polar sheet (46) on the surface, the polar sheet (46) is provided with a diaphragm (47) on the surface, the bottom of the support frame (45) is fixedly connected with an aluminum plastic film lower shell (41), the top of the support frame (45) is fixedly connected with an aluminum plastic film upper shell (42), and the top of the aluminum plastic film upper shell (42) is fixedly connected with an air bag (43).

5. The ring cell of claim 4, wherein: The polar sheet (46) is fixedly connected with the connecting seat (37), the two tabs (44) are inserted into the placing groove (33), and the tab (44) is arranged between the two elastic sheets (35).

6. The ring cell of claim 4, wherein: The aluminum plastic film lower shell (41) and the aluminum plastic film upper shell (42) are arranged on the two sides of the polar sheet (46), and the aluminum plastic film lower shell (41) and the aluminum plastic film upper shell (42) are arranged on the inner sides of the first protective shell (1) and the second protective shell (2).

7. The ring cell of claim 4, wherein: The second protective shell (2) is provided with a through groove in the inner side, and the tab (44) is inserted into the through groove in the inner side of the second protective shell (2).

Images