Cylindrical battery heat shrinkage film plastic packaging device

Abstract

The utility model discloses a cylindrical battery heat shrinkage film plastic packaging device. A plurality of air inlet holes are uniformly distributed in the cylinder wall of the cylindrical isolation cover, and the cylindrical isolation cover can accommodate a single battery; the heating pipe is arranged at the periphery of the isolation cover in a surrounding manner; the outer sleeve is arranged at the outer side of the heating pipe; and the airflow generator is arranged above or below the isolation cover and enables airflow to penetrate through the air inlet holes to be injected into the isolation cover. The heating pipe is arranged in the outer sleeve to generate heat, the heat is injected into the isolation cover through the air inlet hole of the isolation cover, and the isolation cover is cylindrical and can accommodate the battery, so that a heat shrinkage film which loosely wraps the surface of the battery can be uniformly heated, the shrinkage rate of plastic package tightening is the same, and the battery is integrally and uniformly wrapped; therefore, insulation and oxidation prevention can be realized, and better surface protection can be carried out on the battery.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery plastic sealing technology especially relates to a cylindrical battery heat shrinkage film plastic sealing device. BACKGROUND

[0002] The shell of the cylindrical battery usually needs to be tightly formed with a layer of heat shrinkage film to avoid the situation that the battery shell is scratched and oxidized. In the process of sleeving the heat shrinkage film on the cylindrical battery, the cylindrical battery sleeved with the heat shrinkage film is usually heated to make the heat shrinkage film tightly sleeved on the surface of the cylindrical battery. The utility model patent CN202120648465.3 - a cylindrical battery film heat shrinkage device is a device for realizing heat shrinkage of the heat shrinkage film to make the battery film.

[0003] At present, when the heat shrinkage film is heated, one kind of heating structure is open, which wastes heat energy. Another kind is to surround the cylindrical battery with a sleeve, then pour hot gas into the sleeve, and due to the one-way pouring of hot gas and the flow out of the other end, a certain temperature difference is formed, so that the heat shrinkage film is not uniformly heated, resulting in that the heat shrinkage film at one end of the battery is too tight and the heat shrinkage film at the other end of the battery is not tightened, thereby causing the product to be unqualified. SUMMARY

[0004] In view of the deficiencies of the prior art, the technical problem to be solved by the utility model is to provide a cylindrical battery heat shrinkage film plastic sealing device which can uniformly heat the heat shrinkage film of the battery.

[0005] In order to solve the above technical problems, the utility model adopts the technical scheme: a cylindrical battery heat shrinkage film plastic sealing device, which comprises a cylindrical isolation cover capable of accommodating a single battery and having a plurality of air inlet holes uniformly distributed on the cylinder wall, a heating pipe arranged around the periphery of the isolation cover, an outer sleeve provided with the heating pipe outside, and an air flow generator provided above or below the isolation cover and injecting air flow into the isolation cover through the air inlet hole.

[0006] As an improvement of the technical scheme of the cylindrical battery heat shrinkage film plastic sealing device of the utility model, the air flow generator is a heat-resistant air pump connected with an air inlet pipe and an air outlet pipe, the air inlet pipe communicates with the internal space of the isolation cover, and the air outlet pipe communicates with the heating space surrounded by the isolation cover and the outer sleeve.

[0007] As an improvement of the technical scheme of the cylindrical battery heat shrinkage film plastic sealing device of the utility model, one end or both ends of the air inlet pipe are connected to the isolation cover to form air flow by air extraction.

[0008] As an improvement of the technical scheme of the cylindrical battery heat shrinkage film plastic sealing device of the utility model, the air outlet pipe is inclined and connected to the heating space along the cutting line direction of the outer sleeve.

[0009] As an improvement of the technical scheme of the cylindrical battery heat-shrinkable film plastic sealing device, the exhaust pipes are multiple, the height positions of the access are staggered, and the axial angles of the access are different.

[0010] As an improvement of the technical scheme of the cylindrical battery heat-shrinkable film plastic sealing device, the air inlet hole of the isolation cover is a circular hole.

[0011] As an improvement of the technical scheme of the cylindrical battery heat-shrinkable film plastic sealing device, the air inlet hole of the isolation cover is a long slit hole.

[0012] As an improvement of the technical scheme of the cylindrical battery heat-shrinkable film plastic sealing device, the long slit hole is arranged obliquely.

[0013] The cylindrical battery heat-shrinkable film plastic sealing device generates heat through the heating pipe arranged in the outer sleeve, the heat is injected into the isolation cover through the air inlet hole of the isolation cover, the isolation cover is cylindrical and can accommodate the battery, so that the heat-shrinkable film loosely wrapped on the surface of the battery can be uniformly heated, the shrinkage rate of plastic sealing and tightening is the same, and the battery is uniformly and tightly wrapped, so that insulation and oxidation prevention can be realized, and better surface protection of the battery can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a forward structure schematic view of the cylindrical battery heat-shrinkable film plastic sealing device.

[0015] Figure 2 It is a forward structure schematic view of the cylindrical battery heat-shrinkable film plastic sealing device. Figure 1 It is a forward structure schematic view of the cylindrical battery heat-shrinkable film plastic sealing device.

[0016] Figure 3 It is a forward structure schematic view of the cylindrical battery heat-shrinkable film plastic sealing device. DETAILED DESCRIPTION

[0017] The specific implementation manner of the present application will be further illustrated below with reference to the drawings.

[0018] As Figure 1 , Figure 2 , Figure 3As shown, the utility model discloses a cylindrical battery heat shrinkage film plastic encapsulation device, which comprises a cylindrical isolation cover 12 capable of containing a single battery 11 with a plurality of air inlet holes 22 uniformly distributed on the cylinder wall, a heating pipe 13 arranged around the periphery of the isolation cover 12, an outer sleeve 15 provided with the outer side of the heating pipe, and an air flow generator provided above or below the isolation cover 12 and injecting air flow into the isolation cover 12 through the air inlet holes 22. Heat is generated by arranging the heating pipe 13 in the outer sleeve 15, and the heat is injected into the isolation cover 12 through the air inlet holes 22 of the isolation cover 12. The isolation cover 12 is cylindrical and can contain a battery, so that the heat shrinkage film loosely wrapped on the surface of the battery 11 can be uniformly heated, the shrinkage rate of the plastic encapsulation is the same, the battery is uniformly wrapped, and thus insulation and oxidation prevention can be realized, and better surface protection of the battery can be realized. At the same time, since the heat source and the heat shrinkage film are very close and are in a relatively closed space, the heat loss is small, and thus energy saving and environmental protection are realized.

[0019] The air flow generator is a heat-resistant air pump 16 connected with an air inlet pipe 61 and an air outlet pipe 62, the air inlet pipe 61 is communicated with the internal space of the isolation cover 12, the air outlet pipe 62 is communicated with the heating space 52 surrounded by the isolation cover 12 and the outer sleeve 15, so as to form internal circulation of gas flow, the heat-resistant air pump is started in the case of needing heating, under the action of the increased internal air pressure, hot gas flows into the internal space of the isolation cover 12 through the air inlet hole 22, and the heat shrinkage film of the battery 11 is heated to shrink and cover the surface of the battery. After a process of heating and shrinking of the heat shrinkage film of one battery is completed, the heat-resistant air pump is temporarily stopped during the intermittent time of replacing the battery 11, the heat is stored in the heating space to avoid loss and dissipation, and is left for the heating process of the heat shrinkage film of the next battery, so that a large amount of energy can be saved, the heat is uniformly poured into the isolation cover 12, the shrinkage process of the heat shrinkage film is accelerated, the rhythm of the process is accelerated, the processing speed is improved, the cost is reduced, the utilization rate of equipment is improved, and the number of required equipment is reduced.

[0020] The air inlet pipe 61 is connected to one end or both ends of the isolation cover 12 to form air flow by air extraction, so as to construct internal circulation of air flow, so that the heat shrinkage film is uniformly heated and heat energy is saved.

[0021] The air outlet pipe 62 is connected to the heating space in the direction of the cutting line of the outer sleeve 15, so that the air flow can rotate and flow in the annular heating space 52, and the internal space is uniformly supplemented with gas, so as to ensure that the hot gas uniformly penetrates the isolation cover 12 and is injected into the internal space of the isolation cover.

[0022] Further, the air outlet pipe 62 is provided with a plurality of height positions, the height positions are staggered with each other, and the axial angles of the inlet ports are different, so that the air flow injected into the heating space 52 is more balanced.

[0023] The air inlet hole 22 of the isolation cover 12 is a circular hole, which can uniformly pass the hot gas and keep the isolation cover 12 having better strength.

[0024] Alternatively, the air inlet hole of the isolation cover 12 is a long slit hole, which can inject the hot gas more quickly.

[0025] Further, the long slit hole is arranged in an inclined manner, which can ensure the strength of the isolation cover 12 and make the air flow more uniformly enter the inside of the isolation cover.

[0026] The above only discloses the preferred embodiments of the utility model, of course, cannot with this to limit the utility model right scope, therefore, the equivalent change made according to the utility model application patent scope still belongs to the range covered by the utility model.

Claims

1. A heat-shrink film encapsulation device for cylindrical batteries, characterized in that: The device includes a cylindrical isolation cover that can accommodate a single battery and has a plurality of air inlets evenly distributed on its cylindrical wall, a heating pipe surrounding the isolation cover, an outer sleeve having the heating pipe outside, and an airflow generator located above or below the isolation cover and injecting airflow through the air inlets into the isolation cover.

2. The cylindrical battery heat shrink film encapsulation device according to claim 1, characterized in that: The airflow generator is a heat-resistant air pump connected to an inlet pipe and an outlet pipe. The inlet pipe connects to the internal space of the isolation cover, and the outlet pipe connects to the heating space enclosed by the isolation cover and the outer sleeve.

3. The cylindrical battery heat shrink film encapsulation device according to claim 2, characterized in that: The air intake pipe is connected to one or both ends of the isolation cover to draw in air and form an airflow.

4. The cylindrical battery heat shrink film encapsulation device according to claim 2, characterized in that: The exhaust pipe is inclined and enters the heating space along the cutting line of the outer sleeve.

5. The cylindrical battery heat shrink film encapsulation device according to claim 4, characterized in that: The exhaust pipes are provided in multiple locations, with their connection heights staggered and their axial angles differing.

6. The cylindrical battery heat shrink film encapsulation device according to claim 1, characterized in that: The air inlet of the isolation cover is a round hole.

7. The cylindrical battery heat shrink film encapsulation device according to claim 1, characterized in that: The air inlet of the isolation cover is a long, narrow slit.

8. The cylindrical battery heat shrink film encapsulation device according to claim 7, characterized in that: The elongated slit hole is set at an angle.

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