Annular battery and processing tool

Abstract

The utility model relates to the technical field of batteries, and discloses an annular battery and a processing tool. The annular battery comprises an annular shell, a cover body and a battery core, an external assembly can be embedded into the center of the shell, and the annular battery can optimize space utilization and improve heat dissipation efficiency; the utility model further provides a machining tool of the annular battery, the machining tool comprises a winding rod, positioning plates, guide blocks and a pressing structure, an annular boss matched with the thickness of the shell is arranged in the middle of the winding rod, and the position of the winding rod is restrained by positioning plate clamping grooves in the two sides; the guide blocks are matched with the four layers of material placing frames, and the deviation of the battery cells is corrected through the guide grooves; the pressing structure adopts a spring sliding block design, and the pressure is adjusted in a self-adaptive manner to improve the winding tightness; therefore, the production efficiency and the product quality can be obviously improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field, concretely is a kind of annular battery and processing frock. BACKGROUND

[0002] In modern electronic equipment, especially in the field of Internet of Things and medical equipment, higher requirements are put forward for the space utilization and heat dissipation performance of the battery. The traditional battery design (such as cylindrical or square) has problems such as low space utilization and insufficient heat dissipation performance, which is difficult to meet the needs of compact devices for functional integration, so an annular battery needs to be set up to meet the needs of higher space utilization and good heat dissipation performance, such as installing other components in the center space of the battery. In addition, during the manufacturing process of the annular battery, the battery core is wound by a winding rod with uniform size. Since the shell of the annular battery has a certain thickness, it is difficult to insert the wound battery core into the shell, resulting in low production efficiency.

[0003] In addition, during the winding process of the battery core, the length of the insulation tape, carbon film tape and lithium negative electrode tape that make up the battery core is relatively long and varies in size, so the insulation tape, carbon film tape and lithium negative electrode tape are prone to deviation during the winding process, which also leads to low production quality and production efficiency. SUMMARY

[0004] The utility model aims at providing an annular battery and processing frock to solve the technical problems raised in the background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] An annular battery includes an annular shell with an opening facing upward, and an annular cover body provided on the shell. The cover body is provided with two tabs. The shell is provided with a battery core. The battery core is wound by stacking a first insulation tape, a carbon film tape, a second insulation tape and a lithium negative electrode tape together. The lithium negative electrode tape is provided with a negative electrode lead. The carbon film tape is provided with a positive electrode lead. The negative electrode lead and the positive electrode lead are connected to the two tabs respectively.

[0007] Preferably, a mica ring body is provided between the annular cover body and the battery core. The positive electrode lead and the negative electrode lead are respectively provided with an insulating sleeve ring.

[0008] An annular battery processing frock includes a base and a winding rod. A ring-shaped boss is provided in the middle of the winding rod. The thickness of the boss is comparable to the thickness of the annular shell. Positioning plates are provided on both sides of the boss. The positioning plates are provided with clamping grooves. The winding rod is clamped in the clamping grooves. The distance between the two positioning plates matches the width of the boss.

[0009] Preferably, the processing tool further comprises a four-layer material placing rack and a guide block, the guide block is provided with a guide groove, the guide block is arranged in front of the winding rod, the front of the guide block is provided with the four-layer material placing rack, and the width of the guide groove matches the width of the first insulating tape.

[0010] Preferably, the processing tool further comprises an operation table and a pressing structure, the operation table is arranged on the base, the pressing structure comprises two pressing frame supports and a pressing block, the pressing frame support is square, the upper portion is U-shaped and is provided with a first opening, the two sides of the first opening are provided with corresponding first sliding grooves, and the lower portion of the first opening is provided with a first mounting groove; the pressing block is in the shape of an I-beam and comprises a pressing plate and two first sliding blocks which are integrally connected, the two ends of the first sliding blocks are slidingly arranged in the first sliding grooves, the first mounting groove is provided with a first spring, one end of the first spring is connected with the first sliding block, and the other end of the first spring is fixed to the bottom of the first mounting groove; in an initial state, the first spring is in a stretched state; the four-layer material placing rack, the guide block, the winding rod, the pressing block and the positioning plate are all arranged on the operation table, and the two pressing frame supports are arranged on the base and are located on the two sides of the operation table.

[0011] Preferably, the bottom of the pressing plate is in an arc shape.

[0012] Preferably, the processing tool is further provided with a support frame for supporting the winding rod, the support frame comprises a support frame support and a second sliding block, the support frame support is square, the upper portion is U-shaped and is provided with a second opening, the two sides of the second opening are provided with corresponding second sliding grooves, and the lower portion of the second opening is provided with a second mounting groove; the second mounting groove is provided with a second spring, one end of the second spring is connected with the second sliding block, and the other end of the second spring is fixed to the bottom of the second mounting groove; the upper portion of the second sliding block is provided with an arc-shaped support groove in the middle, the second sliding block is movably arranged in the second sliding groove, and the two sides of the winding rod are further provided with columnar handles which are arranged on the support groove.

[0013] Compared with the prior art, the processing tool has the following beneficial effects:

[0014] In the scheme, the annular battery can optimize space utilization, for example, a sensor and a micro circuit board can be embedded in the center of the annular shell, in addition, due to the annular design, the heat dissipation area of the annular battery is larger than that of a cylindrical battery with the same volume, so that the risk of heat accumulation can be effectively reduced, the heat dissipation performance is improved, two tabs are arranged on the cover body, positive and negative lead wires are directly connected to the tabs, the length of internal wires is reduced, local high temperature caused by winding of the wires in the traditional battery is avoided, and the battery core adopts a multi-layer winding structure, so that the structural stability is high.

[0015] The annular battery processing tool can quickly position the battery core and improve the compactness of the battery core structure, and accordingly, the production efficiency and product quality of the annular battery are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 The utility model provides a whole structure schematic diagram of annular battery;

[0017] Fig. 2 The utility model provides a whole structure schematic diagram of annular battery;

[0018] Fig. 3 The utility model discloses a kind of annular battery processing tool structure schematic diagram;

[0019] In the drawing: annular battery 1, annular shell 11, cover body 12, tab 121, first insulating tape 131, carbon film tape 132, positive lead 1321, second insulating tape 133, negative carbon tape 134, negative lead 1341, mica ring body 14, insulating sleeve 15, operation platform 2, base 3, winding rod 4, annular boss 41, columnar handle 42, positioning plate 5, clamping groove 51, support frame 61, second sliding slot 612, second spring 613, second sliding block 614, arc-shaped support slot 615, compression holder 71, first sliding slot 711, compression block 72, first spring 73, guide block 8, guide slot 81, four-layer material placing frame 9. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figs. 1 to 3 The utility model provides a kind of technical scheme: a kind of annular battery and processing tool;A kind of annular battery, annular battery includes one annular shell 11 that opens upward, and annular cover body 12 is covered on shell, two tabs 121 are provided on cover body 12, battery core is provided in shell, battery core is wound by first insulating tape 131, lithium net carbon film tape 132, second insulating tape 133, negative carbon tape 134 is overlapped together, lithium negative pole band is provided with negative lead 1341, carbon film tape 132 is provided with positive lead 1321, negative lead 1341 and positive lead 1321 are connected with two tabs 121 respectively. Annular cover body 12 and battery core are also provided with mica ring body 14 between, positive lead 1321 and negative lead 1341 are respectively provided with insulating sleeve 15. In the scheme, annular battery can optimize space utilization, such as annular shell 11 center can be embedded sensor, miniature circuit board etc., in addition, since annular design is larger than the heat dissipation area of same volume cylindrical battery, can effectively reduce the risk of heat accumulation, and the heat dissipation performance is promoted,

[0022] The mica ring body 14 in the scheme can better isolate the ring-shaped cover body 12 and the battery core, and the insulating sleeve ring 15 can play a guiding and isolating role.

[0023] The utility model discloses still provide a kind of annular battery processing tool, processing tool includes base 3, winding stick 4, winding stick 4 middle part is equipped with annular boss 41, the thickness of boss is equivalent with the thickness of annular shell 11, both sides of boss are equipped with positioning plate 5 respectively, positioning plate 5 is equipped with clamping groove 51, winding stick 4 is clamped in clamping groove 51, the spacing between two positioning plates 5 is matched with the width of boss.The annular boss 41 of the middle part of winding stick 4 is equipped with, the thickness of the annular boss 41 of winding stick 4 is matched with shell wall thickness, to ensure that the battery core after winding can be directly inserted into shell, without secondary adjustment.In addition, positioning plate 5 is respectively equipped with on both sides of boss, the position of winding stick 4 is restricted by the clamping groove 51 of positioning plate 5, avoid lateral deviation when winding, so, improve winding quality, improve production efficiency.

[0024] In the embodiment, as preferred, the processing tool further includes four layers of material placing racks 9 and guide blocks 8, the guide blocks 8 are provided with guide grooves 81, the guide blocks 8 are arranged in front of the winding stick 4, the four layers of material placing racks 9 are arranged in front of the guide blocks 8, and the width of the guide grooves 81 is matched with the width of the first insulating tape 131. The guide grooves 81 are arranged to forcibly correct the deviation of the battery core, so as to facilitate the positioning in subsequent processes.

[0025] In the embodiment, as preferred, the processing tool further includes an operation table 2 and a pressing structure, the operation table 2 is arranged on the base 3, the pressing structure includes two pressing frame seats 71 and pressing blocks 72, the pressing frame seat 71 is square-shaped, the upper part is U-shaped and provided with a first opening, the two sides of the first opening are provided with corresponding first sliding grooves 711, and the lower part of the first opening is provided with a first mounting groove; the pressing block 72 is H-shaped, including a pressing plate and two first sliding blocks on the two sides, and the two ends of the pressing block 72 are slidably arranged in the first sliding grooves 711; the first mounting groove is provided with a first spring 73, one end of the first spring 73 is connected with the first sliding block, and the other end is fixed on the bottom of the first mounting groove; in the initial state, the first spring 73 is in the stretched state; the four layers of material placing racks 9, the guide blocks 8, the winding stick 4, the pressing blocks 72 and the positioning plates 5 are all arranged on the operation table 2, and the two pressing frame seats 71 are arranged on the base 3 and located on the two sides of the operation table 2. The spring of the pressing block 72 in the embodiment can automatically adjust the pressing force according to the thickness of the material, so as to avoid damage to the electrode due to excessive pressure or looseness due to insufficient pressure, thereby improving the quality and efficiency of the winding of the battery core.

[0026] In the embodiment, as preferred, the bottom of the pressing plate is arc-shaped and smooth, so as to reduce the friction between the pressing block 72 and the battery core and facilitate rapid winding.

[0027] In the embodiment, as preferred, for the convenience of placing the winding rod 4, the machining tool further is provided with a support frame 61 for supporting the winding rod 4, the support frame 61 comprises a support frame 61 seat and a second sliding block 614, the support frame 61 seat is square, the upper portion is provided with a U-shaped second opening, the two sides of the second opening are provided with corresponding second sliding grooves 612, and the lower portion of the second opening is provided with a second mounting groove; the second mounting groove is provided with a second spring 613, one end of the second spring 613 is connected with the second sliding block 614, and the other end is fixed on the bottom of the second mounting groove; the upper portion of the second sliding block 614 is provided with an arc-shaped support groove 615 in the middle, the second sliding block 614 is movably arranged in the second sliding groove 612, and the two sides of the winding rod 4 are further provided with symmetrical columnar handles 42, and the columnar handles 42 are arranged on the support grooves. In the initial state, the spring is in a natural state, and in the use process, due to the winding of the battery core by the winding rod 4, the center of gravity of the winding rod 4 is increased, and due to the elastic force of the spring, the winding rod 4 is provided with a downward elastic force, so that the winding rod 4 has a pressure on the battery core, thereby facilitating the compact structure of the battery core.

[0028] 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 the 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. A ring cell, characterized by: The annular battery comprises an annular shell with an opening upward, and an annular cover body provided on the shell, and two tabs are provided on the cover body, a battery core is arranged in the shell, the battery core is formed by winding the first insulating tape, the carbon film tape, the second insulating tape and the lithium negative electrode tape, the lithium negative electrode tape is provided with a negative electrode lead, the carbon film tape is provided with a positive electrode lead, and the negative electrode lead and the positive electrode lead are connected with the two tabs respectively.

2. A ring cell according to claim 1, characterized in that: A mica ring body is arranged between the annular cover body and the battery core, and the positive electrode lead and the negative electrode lead are respectively sleeved with insulating sleeve rings.

3. A ring cell processing tooling, characterized by: The winding rod comprises a base, a winding rod, and a ring-shaped boss arranged in the middle of the winding rod, the thickness of the boss is equivalent to the thickness of the annular shell, and positioning plates are arranged on both sides of the boss, the positioning plates are provided with clamping grooves, the winding rod is clamped in the clamping grooves, and the spacing between the two positioning plates matches the width of the boss.

4. The ring cell processing tooling of claim 3, wherein: The processing tool further comprises four layers of material placing racks and guide blocks, the guide blocks are provided with guide grooves, the guide blocks are arranged in front of the winding rod, the four layers of material placing racks are arranged in front of the guide blocks, and the width of the guide grooves matches the width of the first insulating tape.

5. A ring cell processing tooling as claimed in claim 4, wherein: The processing tool further comprises an operation table and a pressing structure, the operation table is arranged on the base, the pressing structure comprises two pressing frame supports and pressing blocks, the pressing frame supports are square-shaped, the upper parts of the pressing frame supports are U-shaped and provided with first openings, first sliding grooves are arranged on both sides of the first openings, and first mounting grooves are arranged below the first openings; the pressing blocks are H-shaped, and comprise pressing plates and first sliding blocks arranged on both sides of the pressing plates, the two ends of the first sliding blocks are slidingly arranged in the first sliding grooves, first springs are arranged in the first mounting grooves, one end of each first spring is connected with a first sliding block, and the other end of each first spring is fixed to the bottom of the first mounting groove, and in the initial state, the first springs are in the stretched state; the four layers of material placing racks, the guide blocks, the winding rod, the pressing blocks and the positioning plates are arranged on the operation table, and the two pressing frame supports are arranged on the base and located on both sides of the operation table respectively.

6. A ring cell processing tool according to claim 5, wherein: The bottom of the pressing plate is arc-shaped.

7. A ring cell processing tool according to claim 5, wherein: The processing tool further comprises a supporting frame for supporting the winding rod, the supporting frame comprises a supporting frame support and a second sliding block, the supporting frame support is square-shaped, the upper part of the supporting frame support is U-shaped and provided with a second opening, second sliding grooves are arranged on both sides of the second opening, and a second mounting groove is arranged below the second opening; a second spring is arranged in the second mounting groove, one end of the second spring is connected with the second sliding block, and the other end of the second spring is fixed to the bottom of the second mounting groove, an arc-shaped supporting groove is arranged in the upper part of the second sliding block, the second sliding block is movably arranged in the second sliding groove, and columnar handles are symmetrically arranged on both sides of the winding rod, and the columnar handles are arranged on the supporting groove.

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