Battery heating device

Abstract

To provide a battery heating device.SOLUTION: A battery heating device includes a lower plate, a support module arranged on the lower plate and configured to allow each of a plurality of cylindrical batteries to be inserted thereinto, and a heating element arranged between the lower plate and the support module and configured to heat the plurality of cylindrical batteries. The support module may include a first module including a plurality of accommodation spaces in which the plurality of cylindrical batteries are respectively accommodated and a plurality of openings provided to allow the plurality of cylindrical batteries to be inserted thereinto, and a second module arranged on the first module and including a plurality of penetration portions respectively corresponding to the plurality of openings to adjust positions at which the plurality of cylindrical batteries are respectively accommodated in the plurality of accommodation spaces.SELECTED DRAWING: Figure 9

Description

Technical Field

[0001] The present invention relates to a battery heating device.

Background Art

[0002] A secondary battery is a battery that can be charged and discharged multiple times so as to be reusable. Secondary batteries are used as energy sources for mobile devices, electric vehicles, hybrid vehicles, electric bicycles, uninterruptible power supplies, etc., and depending on the type of external device to which they are applied, they are used in the form of single batteries or in a module form in which a large number of batteries are connected and grouped into one unit.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The problem to be solved by the present invention is to provide a battery heating device configured to accommodate a plurality of cylindrical batteries and capable of uniformly heating each of the plurality of cylindrical batteries.

[0005] Another problem to be solved by the present invention is to provide a support module applicable to various types of cylindrical batteries by replacing the second module as the type of the applied cylindrical battery changes.

Means for Solving the Problems

[0006] A battery heating device configured to accommodate and heat a plurality of cylindrical batteries for solving the above problems, comprising a lower plate, a support module disposed on the lower plate and configured such that each of the plurality of cylindrical batteries is inserted therein, and a heating element interposed between the lower plate and the support module and configured to heat the cylindrical batteries. The support module includes a first module having a plurality of accommodation spaces in which the cylindrical batteries are accommodated and a plurality of openings provided such that the cylindrical batteries are inserted therein, and a second module disposed above the first module and having a plurality of through-holes corresponding to the openings respectively so as to adjust the positions where the cylindrical batteries are accommodated in the accommodation spaces.

[0007] The support module may be configured such that the cylindrical batteries to be accommodated therein do not contact the side walls of the accommodation spaces.

[0008] The diameters of the through-holes may be provided differently depending on the diameters of the cylindrical batteries accommodated in the support module.

[0009] The openings and the through-holes may each be formed in a circular shape.

[0010] The openings and the through-holes may each have the same central axis.

[0011] The diameter of the through-hole may be formed smaller than the size of the opening.

[0012] The support module may include a fixing element configured to fix the relative positions of the first module and the second module.

[0013] The fixing element may be configured to fix the through-holes at positions corresponding to the openings.

[0014] The second module includes a protruding structure extending from the through-hole, and the protruding structure can be formed in a direction facing the first module at each of the through-holes.

[0015] At least a part of the protruding structure can be inserted into the opening.

[0016] The protruding structure can have a cylindrical shape.

[0017] The inner diameter of the protruding structure can be formed smaller than the diameter of the accommodation space.

[0018] The material of the first module may include a metallic substance.

[0019] The material of the second module may include a heat-insulating substance.

[0020] It may include a control module configured to detect the temperature of each of the accommodation spaces.

Advantages of the Invention

[0021] The battery heating device according to the present invention can provide a battery heating device configured to accommodate a plurality of cylindrical batteries and capable of uniformly heating each of the plurality of cylindrical batteries.

[0022] The battery heating device according to the present invention can stably accommodate each of the plurality of cylindrical batteries with a plurality of support modules that are differently applied according to the shape of the cylindrical battery.

[0023] The battery heating device according to the present invention can provide a support module applicable to various types of cylindrical batteries by replacing the second module as the type of the applicable cylindrical battery changes.

Brief Description of the Drawings

[0024]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Mode for Carrying Out the Invention

[0025] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to that, the terms and words used in this specification and the claims should not be construed as being ordinary or limited to their dictionary meanings. The inventor must interpret them as meanings and concepts that conform to the technical idea of the present invention in accordance with the principle that the concept of the terms can be appropriately defined in order to explain the invention in the best way. Therefore, the embodiments described in this specification and the configurations shown in the drawings are only some of the most preferred embodiments of the present invention and do not represent any of the technical ideas of the present invention. It should be understood that at the time of filing this application, there may be various equivalents and modifications that can replace these. Also, when used in this specification, "comprise, include" and / or "comprising, including" identify the existence of the recited shape, number, step, operation, member, element, and / or a group thereof, and do not exclude the existence or addition of one or more other shapes, numbers, operations, members, elements, and / or groups. Also, when describing embodiments of the present invention, "~ can" and "~ is also" include "one or more embodiments of the present invention".

[0026] Also, for the purpose of assisting in the understanding of the invention, the accompanying drawings are not shown at actual scale, and the dimensions of some components may be exaggerated. Also, in different embodiments, the same reference numerals are assigned to the same components.

[0027] A reference that two comparison targets are "identical" means "substantially identical". Therefore, "substantially identical" may include cases having a deviation regarded as a low level in the industry, for example, a deviation within 5%. Also, in a given region, the fact that a certain parameter is uniform means that it is uniform from an average perspective.

[0028] Even if terms such as first, second, etc. are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are merely used to distinguish one component from another, and it goes without saying that, unless otherwise stated to the contrary, the first component may also be the second component.

[0029] Throughout the specification, unless otherwise stated to the contrary, each component may be in the singular or in the plural.

[0030] The statement that any configuration is disposed "above (or below)" a component or "on (or under)" a component means not only that any configuration is disposed in contact with the upper (or lower) surface of the component, but also that there may be other configurations intervening between the component and any configuration disposed "on (or under)" the component.

[0031] Also, when a component is described as being "connected", "coupled", or "joined" to another component, it should be understood that the components may be directly connected or joined to each other, or that other components may "intervene" between the components, or that the components may be "connected", "coupled", or "joined" through other components. Also, when a portion is said to be electrically coupled to another portion, this includes not only the case where they are directly connected, but also the case where other elements are interposed therebetween.

[0032] Throughout the specification, when "A and / or B" is used, this means A, B, or A and B, unless otherwise stated to the contrary. That is, "and / or" includes all combinations or any combination of the plurality of listed items. When "C to D" is used, this means C or more and D or less, unless otherwise stated to the contrary.

[0033] Hereinafter, with reference to the accompanying drawings, a battery heating device according to an exemplary embodiment will be described.

[0034] FIG. 1 is a perspective view of a battery heating device according to an exemplary embodiment.

[0035] Referring to FIG. 1, a battery heating device 1 according to an exemplary embodiment includes a lower plate 2 and a support module 40. The support module 40 is disposed on the lower plate 2. The support module 40 is fixed on the lower plate 2. The support module 40 can maintain a horizontal position with respect to the ground on the lower plate 2. The lower plate 2 is configured such that the support module 40 maintains a horizontal position with respect to the ground. The support module 40 maintaining a horizontal position with respect to the ground is for the support module 40 to stably accommodate the cylindrical battery 10. The support module 40 maintaining a horizontal position with respect to the ground means that the axis of the cylindrical battery 10 inserted into the support module 40 is arranged perpendicular to the ground. However, the arrangement of the support module 40 and the lower plate 2 is not limited to the above description.

[0036] FIG. 2 is a perspective view showing a state where a cylindrical battery is inserted into the battery heating device according to an exemplary embodiment. FIG. 3 is an exploded perspective view of the battery heating device according to an exemplary embodiment. FIG. 4 is a partial cross-sectional perspective view showing the A-A' cross-section of the battery heating device of FIG. 1.

[0037] Referring to FIGS. 1 to 4, cylindrical batteries 10 are respectively inserted into the battery heating device 1 according to an exemplary embodiment. The cylindrical batteries 10 are accommodated in the battery heating device 1. There are a plurality of cylindrical batteries 10. The plurality of cylindrical batteries 10 are respectively inserted into the battery heating device 1. The plurality of cylindrical batteries 10 are respectively accommodated in the battery heating device 1.

[0038] A plurality of cylindrical batteries 10 are respectively inserted into a support module 40 according to an exemplary embodiment. The plurality of cylindrical batteries 10 are respectively accommodated in a battery heating device 1. In the following description, unless explicitly described as plural, the cylindrical battery 10 may mean a single cylindrical battery 10 or a plurality of cylindrical batteries 10 depending on the context.

[0039] A support module 40 according to an exemplary embodiment includes a first module 41. The first module 41 can perform a function of accommodating the cylindrical battery 10. The cylindrical batteries 10 are respectively accommodated in the first module 41. The first module 41 includes a plurality of accommodation spaces 410. The cylindrical batteries 10 are respectively accommodated in the accommodation spaces 410 of the first module 41. The cylindrical battery 10 is supported by the first module 41 in the accommodation space 410.

[0040] The accommodation spaces 410 of the first module 41 according to an exemplary embodiment are respectively formed so as to surround at least a part of the cylindrical battery 10. The accommodation spaces 410 of the first module 41 are formed so as to cover at least a part of the outer peripheral surface of the cylindrical battery 10. The accommodation spaces 410 of the first module 41 are formed larger than around the cylindrical battery 10. Side walls 4100 of the accommodation space that define at least a part of the accommodation space 410 are formed so as to follow at least a part of the outer peripheral surface of the cylindrical battery 10. The side walls 4100 of the accommodation space are formed at a predetermined interval from the outer peripheral surface of the cylindrical battery 10. The cylindrical battery 10 does not directly contact the side walls 4100 of the accommodation space within the accommodation space 410 of the first module 41. Specific details about this will be described later.

[0041] The first module 41 according to an exemplary embodiment includes a plurality of openings 411 provided so that the cylindrical battery 10 can be inserted. In the following description, the opening 411 may mean a single opening 411 or a plurality of openings 411 depending on the context.

[0042] The openings 411 of the first module 41 according to the exemplary embodiment are respectively formed at the upper part in the accommodation space 410 of the first module 41. The openings 411 are formed in a circular shape. That the openings 411 are formed in a circular shape means that the openings 411 seen from above are circular. The cylindrical batteries 10 are respectively inserted into the accommodation space 410 through the openings 411 of the first module 41. That the cylindrical batteries 10 are inserted through the openings 411 includes being inserted into the openings 411 through other members other than the first module 41. For example, the cylindrical batteries 10 penetrate through the second module 42 to be described later and are inserted into the openings 411 of the first module 41. However, the above description about the manner in which the cylindrical batteries 10 are accommodated in the accommodation space 410 is merely an exemplary description and is not limited thereto.

[0043] The support module 40 according to the exemplary embodiment includes a second module 42. The second module 42 is disposed on the first module 41. The second module 42 is disposed above the first module 41. The first module 41 is disposed below the second module 42.

[0044] The second module 42 according to the exemplary embodiment can have a function of adjusting the position where the cylindrical battery 10 is accommodated in the first module 41. The second module 42 can have a function of adjusting the position where the cylindrical battery 10 is accommodated in the accommodation space 410 of the first module 41. The second module 42 can have a function of adjusting the position where the cylindrical battery 10 is inserted into the opening 411 of the first module 41. The positions where the cylindrical batteries 10 are respectively accommodated in the first module 41 are adjusted by the second module 42. The positions where the cylindrical batteries 10 are respectively accommodated in the accommodation space 410 of the first module 41 are adjusted by the second module 42. The positions where the cylindrical batteries 10 are respectively inserted into the opening 411 of the first module 41 are adjusted by the second module 42.

[0045] By adjusting the position where the cylindrical battery 10 is accommodated, each of the cylindrical batteries 10 can be accommodated so as not to be biased to one side within the accommodation space 410 of the first module 41. Adjusting the position where the cylindrical battery 10 is accommodated includes arranging each of the cylindrical batteries 10 at a predetermined interval from the side wall 4100 of the accommodation space within the accommodation space 410 of the first module 41. Adjusting the position where the cylindrical battery 10 is accommodated includes arranging each of the cylindrical batteries 10 at the central portion within the accommodation space 410 of the first module 41. By adjusting the position where the cylindrical battery 10 is accommodated, each of the cylindrical batteries 10 can be prevented from directly contacting the side wall 4100 of the accommodation space of the first module 41. However, the function of the second module 42 is not limited to the above description.

[0046] The second module 42 according to an exemplary embodiment includes a plurality of through-holes 421. In the following description, the through-hole 421 may mean a single through-hole 421 or a plurality of through-holes 421 depending on the context. The through-hole 421 is a region where the cylindrical battery 10 is inserted in the direction of the second module 42. The through-hole 421 is a region where the cylindrical battery 10 penetrates the upper and lower surfaces of the second module 42 toward the first module 41. The through-holes 421 respectively correspond to the openings 411 of the first module 41. The through-holes 421 are formed in a circular shape. The fact that the through-holes 421 are formed in a circular shape means that the through-holes 421 are circular when viewed from above. One side of the through-hole 421 respectively corresponds to the insertion portion of the first module 41.

[0047] The through-hole 421 according to an exemplary embodiment can have a function of adjusting the position where the cylindrical battery 10 is accommodated in the first module 41. The through-hole 421 can have a function of adjusting the position where the cylindrical battery 10 is accommodated in the accommodation space 410 of the first module 41. The through-hole 421 can have a function of adjusting the position where the cylindrical battery 10 is inserted into the opening 411 of the first module 41. The positions where the cylindrical batteries 10 are respectively accommodated in the first module 41 are adjusted by the through-holes 421. The positions where the cylindrical batteries 10 are respectively accommodated in the accommodation space 410 of the first module 41 are adjusted by the through-holes 421. The positions where the cylindrical batteries 10 are respectively inserted into the opening 411 of the first module 41 are adjusted by the through-holes 421.

[0048] There can be a plurality of shapes that the through-hole 421 included in the second module 42 according to an exemplary embodiment can have. The shape of the through-hole 421 is defined by the diameter of the through-hole 421 into which the cylindrical battery 10 is inserted. For example, when the diameter of the cylindrical battery 10 inserted into the support module 40 is large, the diameter of the through-hole 421 is formed large. For example, when the diameter of the cylindrical battery 10 inserted into the support module 40 is small, the diameter of the through-hole 421 is formed small. For example, when the length of the cylindrical battery 10 inserted into the support module 40 is long, the through-length of the through-hole 421 is formed long. For example, when the length of the cylindrical battery 10 inserted into the support module 40 is short, the through-length of the through-hole 421 is formed short. That is, through-holes 421 having different forms according to the form of the cylindrical battery 10 are applied. That is, the second module 42 including through-holes 421 having different forms according to the form of the cylindrical battery 10 is applied. However, the relationship between the form of the cylindrical battery 10 and the through-hole 421 of the second module 42 is not limited to the above description. For example, when the length of the cylindrical battery 10 is long, the second module 42 having through-holes 421 of the same form can be arranged on the upper part of the second module 42.

[0049] On one hand, the second module 42 disposed on the first module 41 can be replaced according to the form of the cylindrical battery 10 inserted into the battery heating device 1. That is, the second module 42 having different through-holes 421 can be applied according to the form of the cylindrical battery 10.

[0050] The first module 41 and the second module 42 according to an exemplary embodiment include a fixing element 51. The fixing element 51 is configured to fix the relative positions of the first module 41 and the second module 42. The fixing element 51 can fix the positions of the through-holes 421 of the second module 42 to the openings 411 of the first module 41 respectively. The fixing element 51 is configured to fix the through-holes 421 to positions corresponding to the openings 411. If the through-holes 421 are fixed to positions corresponding to the openings 411, the position where the cylindrical battery 10 is inserted into the opening 411 of the first module 41 is adjusted. If the through-holes 421 are fixed to positions corresponding to the openings 411, the position where the cylindrical battery 10 is accommodated in the accommodation space 410 of the first module 41 is adjusted.

[0051] The fixing element 51 can fix the through-holes 421 to positions corresponding to the openings 411 even when the second module 42 disposed on the first module 41 is replaced according to the form of the cylindrical battery 10. For example, any one of the respective fixing elements 51 of the first module 41 and the second module 42 includes a protrusion form, and the other one includes a groove form. For example, the fixing elements 51 are symmetrically arranged in the first module 41 and the second module 42 respectively. However, the functions and forms of the aforementioned fixing element 51 are merely examples and are not limited to the above description.

[0052] The second module 42 is configured to adjust the position where the cylindrical battery 10 inserted through the through-holes 421 is accommodated in the accommodation space 410 of the first module 41 respectively. The specific configuration of the support module 40 including the first module 41 and the second module 42 for adjusting the position where the cylindrical battery 10 is accommodated will be described later.

[0053] On one hand, the battery heating device 1 according to an exemplary embodiment includes a heating element 3. The heating element 3 is configured to heat a cylindrical battery 10 housed in the battery heating device 1. The cylindrical battery 10 is heated by the heating element 3. Heating the cylindrical battery 10 may be at least part of the manufacturing process of the cylindrical battery 10. Heating the cylindrical battery 10 may be at least part of the activation process of the secondary battery.

[0054] The heating element 3 according to the exemplary embodiment is interposed between the lower plate 2 and the support module 40. The heating element 3 is disposed on the lower plate 2. The heating element 3 is disposed below the support module 40. The lower plate 2, the heating element 3, and the support module 40 are arranged in order from the ground. If the heating element 3 is disposed below the support module 40, the heating element 3 can transfer heat well to the support module 40. If the heating element 3 is disposed on the lower plate 2, the heat released by the heating element 3 can be well transferred to the support module 40. However, the arrangement of the heating element 3, the lower plate 2, and the support module 40 described above is only an exemplary explanation and is not limited thereto.

[0055] The heat released by the heating element 3 can heat the support module 40. The support module 40 can transfer the heat released by the heating element 3 to the cylindrical battery 10. The heating element 3 can heat the cylindrical battery 10 through the support module 40. The heating element 3 can heat the first module 41. The heating element 3 can heat the accommodation space 410 of the first module 41. The heating element 3 can heat the cylindrical battery 10 housed in the first module 41. The heating element 3 can heat the cylindrical battery 10 housed in the accommodation space 410 of the first module 41. However, the function of the heating element 3 is not limited to the above description.

[0056] The heating element 3 can simultaneously heat each of the plurality of cylindrical batteries 10. Each of the plurality of cylindrical batteries 10 accommodated in the support module 40 can be simultaneously heated by the heating element 3. The heating element 3 can uniformly heat each of the plurality of cylindrical batteries 10. The heating element 3 can transfer uniform heat to each of the plurality of cylindrical batteries 10. The fact that the heating element 3 simultaneously heats each of the plurality of cylindrical batteries 10 may mean that the support module 40 heated by the heating element 3 simultaneously heats each of the plurality of cylindrical batteries 10. The fact that the heating element 3 heats each of the plurality of cylindrical batteries 10 may mean that the first module 41 heated by the heating element 3 heats each of the plurality of cylindrical batteries 10. However, the method by which the heating element 3 heats each of the plurality of cylindrical batteries 10 is not limited to the above description. For example, the heating element 3 can heat the plurality of cylindrical batteries 10 in a form that transfers radiant heat to each of the plurality of cylindrical batteries 10 without relying on the first module 41.

[0057] The heating element 3 is configured to transfer uniform heat to the plurality of accommodation spaces 410 included in the support module 40. For example, the heating element 3 is uniformly arranged at the lower part of the support module 40 corresponding to each of the plurality of accommodation spaces 410 of the support module 40. By arranging the heating element 3 uniformly at the lower part of the support module 40, the heat transfer rate per unit area transferred by the heating element 3 to the lower part of the support module 40 can be configured to be the same. For example, the heating element 3 is also a plate-shaped heater arranged at the lower part of the support module 40. For example, the heating element 3 may include a plurality of heating elements arranged at a uniform density at the lower part of the support module 40. However, the shape of the heating element 3 is not limited to the above description. For example, the heating element 3 may be a heat medium flowing at the same flow rate per unit area at the lower part of the support module 40.

[0058] The first module 41 according to an exemplary embodiment can transfer the heat released by the heating element 3. The first module 41 can be in direct contact with the heating element 3. The heating element 3 can transfer heat to the first module 41 in a heat conduction manner. When the first module 41 is transferred heat in a heat conduction manner by the heating element 3, the first module 41 can efficiently transfer the heat released by the heating element 3. The first module 41 includes a metallic material. When the first module 41 includes a metallic material, the heat released by the heating element 3 can be well transferred. However, the material and configuration of the first module 41 are not limited to the above description. Also, the manner in which the first module 41 is transferred heat from the heating element 3 is not limited to the above description.

[0059] FIG. 5 is a perspective view of a battery warming device including a plurality of support modules according to an exemplary embodiment.

[0060] Referring to FIGS. 1 to 5, a battery warming device 1 according to an exemplary embodiment includes a plurality of support modules 40. A plurality of support modules 40 may be provided. The plurality of support modules 40 are respectively disposed on the lower plate 2. The heating element 3 is interposed between the plurality of support modules 40 and the lower plate 2. The number of support modules 40 included in the battery warming device 1 is adjusted according to the number of cylindrical batteries 10 inserted into the battery warming device 1. For example, when an additional accommodation space 410 for accommodating the cylindrical battery 10 is required, by adding a support module 40 to the battery warming device 1, the cylindrical battery 10 can be further accommodated. Adding a support module 40 to the battery warming device 1 includes disposing a support module 40 in an area on the lower plate 2 where no support module 40 is disposed. Adding a support module 40 to the battery warming device 1 may include, although not shown, further disposing a separate support module 40 on the support module 40. However, the number and arrangement of the support modules 40 are not limited to the above description.

[0061] FIG. 6 is a cross-sectional view conceptually showing an enlarged part of the battery warming device shown in FIG. 4.

[0062] Referring to FIGS. 2 to 6, the opening 411 of the first module 41 and the through-hole 421 of the second module 42 according to the exemplary embodiment can each have the same central axis. The through-hole 421 of the second module 42 is arranged to have the same central axis corresponding to the through-hole 421 of the first module 41. When the opening 411 of the first module 41 and the through-hole 421 of the second module 42 each have the same central axis, the position of the cylindrical battery 10 inserted into the opening 411 of the first module 41 through the through-hole 421 of the second module 42 is adjusted. When the opening 411 of the first module 41 and the through-hole 421 of the second module 42 each have the same central axis, the position of the cylindrical battery 10 accommodated in the accommodation space 410 of the first module 41 is adjusted.

[0063] FIG. 7 is a cross-sectional view showing a through-hole formed with a diameter smaller than the diameter of the opening in the battery heating device shown in FIG. 6.

[0064] Referring to FIGS. 2, 6, and 7, the opening 411 of the first module 41 according to the exemplary embodiment can have a predetermined diameter. The diameter of the opening 411 of the first module 41 is also the diameter D1 of the accommodation space 410 of the first module 41. The diameter of the accommodation space 410 is also the distance between the two side walls of the accommodation space 410. The through hole 421 of the second module 42 can have a diameter corresponding to the diameter of the opening 411. Also, the diameter D2 of the through hole 421 of the second module 42 can be formed smaller than the diameter of the opening 411 of the first module 41. If the diameter D2 of the through hole 421 is formed smaller than the diameter of the opening 411, the position where the cylindrical battery 10 inserted into the support module 40 is accommodated is adjusted. If the diameter D2 of the through hole 421 is formed smaller than the diameter of the opening 411, the position of the cylindrical battery 10 inserted into the opening 411 is adjusted. If the diameter D2 of the through hole 421 is formed smaller than the diameter of the opening 411, the cylindrical battery 10 accommodated inside the support module 40 is configured not to contact the side wall 4100 of the accommodation space. If the diameter D2 of the through hole 421 is formed smaller than the diameter of the opening 411, the space between the cylindrical battery 10 and the two side walls of the accommodation space 410 is the same.

[0065] FIG. 8 is a cross-sectional view showing the second module in which a protruding structure is formed in the battery heating device shown in FIG. 7.

[0066] Referring to FIGS. 2, 3, 6, and 8, the second module 42 according to an exemplary embodiment includes a protruding structure 52 extending from the through-hole 421. The protruding structure 52 is formed in a direction facing the first module 41 at each of the through-holes 421. The protruding structure 52 can fix the relative positions of the first module 41 and the second module 42. The protruding structure 52 can fix the through-hole 421 of the second module 42 at a position corresponding to the opening 411 of the second module 42. If the through-hole 421 is fixed at a position corresponding to the opening 411, the position where the cylindrical battery 10 is inserted into the opening 411 of the first module 41 is adjusted. If the through-hole 421 is fixed at a position corresponding to the opening 411, the position where the cylindrical battery 10 is accommodated in the accommodation space 410 of the first module 41 is adjusted.

[0067] At least a part of the protruding structure 52 according to an exemplary embodiment is inserted into the opening 411 of the first module 41. The protruding structure 52 can have a substantially cylindrical shape. The inner diameter of the protruding structure 52 may be formed to be the same as the diameter of the through-hole 421. Also, the inner diameter of the protruding structure 52 can be formed smaller than the diameter of the accommodation space 410. If at least a part of the protruding structure 52 included in the second module 42 is inserted into the opening 411, the through-hole 421 can be well fixed at a position corresponding to the opening 411. The protruding structure 52 can adjust the position where the cylindrical battery 10 is inserted into the opening 411. The protruding structure 52 can adjust the position where the cylindrical battery 10 is accommodated in the accommodation space 410. However, the shape and arrangement of the protruding structure 52 are not limited to the above description.

[0068] FIG. 9 is a drawing showing a state in which a cylindrical battery is inserted into the battery heating device of FIG. 8.

[0069] Referring to FIGS. 2, 3, 6, and 9, a cylindrical battery 10 according to an exemplary embodiment is inserted into a support module 40. The support module 40 can accommodate the cylindrical battery 10. The cylindrical battery 10 is accommodated in the accommodation space 410 of the first module 41. The second module 42 can adjust the position where the cylindrical battery 10 is accommodated in the accommodation space 410 of the first module 41.

[0070] Adjusting the position where the cylindrical battery 10 is accommodated by the second module 42 includes adjusting the insertion accuracy of the cylindrical battery 10. The precise insertion of the cylindrical battery 10 into the support module 40 may mean that the cylindrical battery 10 is accommodated in the central part of the accommodation space 410 within the support module 40. The accommodation of the cylindrical battery 10 in the central part of the accommodation space 410 may mean that the axis of the cylindrical battery 10 is arranged to coincide with the central axes of the opening 411 of the first module 41 and the through hole 421 of the second module 42.

[0071] The diameter of the through hole 421 is formed larger than the diameter of the cylindrical battery 10. The diameter of the through hole 421 is formed smaller than the diameter of the opening 411. The cylindrical battery 10 inserted through the through hole 421 does not contact the side wall 4100 of the accommodation space.

[0072] The cylindrical battery 10 is accommodated in the support module 40 so as not to contact the side wall 4100 of the accommodation space. When the cylindrical battery 10 does not contact the side wall 4100 of the accommodation space, uniform heat transfer is performed from the first module 41 to the cylindrical battery 10.

[0073] The first module 41 can transfer the heat released by the heating element 3. The heat transferred from the heating element 3 to the first module 41 is also the heat transferred from the heating element 30 included in the heating element 3 to the first module 41. The first module 41 can transfer the heat released by the heating element 3 to the cylindrical battery 10. The cylindrical battery 10 is heated by the first module 41. The material of the first module 41 includes a metallic substance. However, the function and material of the first module 41 are not limited to the above description.

[0074] The second module 42 according to an exemplary embodiment can perform a function of keeping the accommodation space 410 warm. The second module 42 can prevent heat transmitted from the first module 41 to the cylindrical battery 10 from being released outside the battery heating device 1. The material of the second module 42 includes a heat-insulating material. However, the function and material of the second module 42 are not limited to the above description.

[0075] The battery heating device 1 according to an exemplary embodiment may include a control module 6 configured to detect the temperature of each of the accommodation spaces 410. The control module 6 can control the heating element 3 so that each of the cylindrical batteries 10 is uniformly heated. The control module 6 can be disposed in each of the accommodation spaces 410 that accommodate a plurality of cylindrical batteries 10. The control module 6 can be formed at the lower part of the accommodation space 410. The control module 6 can be formed by penetrating the support module 40, the heating element 3, and the lower plate 2 from below. However, the function and arrangement of the control module 6 are not limited to the above description.

[0076] FIG. 10 is a drawing showing a state in which a cylindrical battery having a diameter smaller than that of the cylindrical battery inserted into the battery heating device of FIG. 9 is inserted.

[0077] Referring to FIGS. 2, 3, 6, 9, and 10, the cylindrical battery 10 inserted into the battery heating device 1 according to an exemplary embodiment can have various forms. For example, a cylindrical battery 10 having a diameter smaller than the diameter of the cylindrical battery 10 inserted into the battery heating device 1 in FIG. 9 is inserted into the battery heating device 1.

[0078] Depending on the form of the cylindrical battery 10 inserted into the battery heating device 1, the second module 42 disposed on the first module 41 can be replaced. That is, a second module 42 having different through-holes 421 can be applied depending on the form of the cylindrical battery 10.

[0079] By applying different diameters of the through-hole 421 of the second module 42 according to the diameter of the cylindrical battery 10, the position where the cylindrical battery 10 is accommodated in the accommodation space 410 can be adjusted. By applying different diameters of the through-hole 421 of the second module 42 according to the diameter of the cylindrical battery 10, the cylindrical battery 10 can be accommodated in the central portion of the accommodation space 410. When the cylindrical battery 10 is accommodated in the central portion of the accommodation space 410, a plurality of cylindrical batteries 10 can be uniformly heated respectively.

[0080] The present invention has been described with reference to the embodiments shown in the accompanying drawings, which are merely exemplary, and those having ordinary knowledge in the technical field to which the present invention pertains will be able to understand that various modifications and equivalent other embodiments are possible hereinafter.

Explanation of Reference Numerals

[0081] 1 Battery heating device 10 Cylindrical battery 2 Lower plate 3 Heating element 30 Heating element 40 Support module 41 First module 410 Accommodation space 4100 Side wall of the accommodation space 411 Opening 42 Second module 421 Through-hole 51 Fixing element 52 Protruding structure 6 Control module

Claims

1. A battery heating device configured to accommodate and heat a plurality of cylindrical batteries, comprising: a lower plate; a support module disposed on the lower plate and configured such that the plurality of cylindrical batteries are respectively inserted therein; a heating element interposed between the lower plate and the support module and configured to heat the cylindrical batteries. The support module includes: a first module having a plurality of accommodation spaces for accommodating the cylindrical batteries and a plurality of openings provided such that the cylindrical batteries are inserted therein; and a second module disposed above the first module and having a plurality of through-holes respectively corresponding to the openings so as to adjust the positions where the cylindrical batteries are accommodated in the accommodation spaces.

2. The battery heating device according to claim 1, wherein the support module is configured such that the cylindrical batteries accommodated therein do not contact the side walls of the accommodation spaces.

3. The battery heating device according to claim 1, wherein the diameters of the through-holes are provided to be different according to the diameters of the cylindrical batteries accommodated in the support module.

4. The battery heating device according to claim 1, wherein the openings and the through-holes are each formed in a circular shape.

5. The battery heating device according to claim 4, wherein the openings and the through-holes each have the same central axis.

6. The battery heating device according to claim 5, wherein the diameter of the through-hole is formed smaller than the size of the opening.

7. The battery heating device according to claim 1, wherein the support module includes a fixing element configured to fix the relative positions of the first module and the second module.

8. The battery heating device according to claim 7, wherein the fixing element is configured to fix the through-holes at positions corresponding to the openings.

9. The second module includes a protruding structure extending from the through-hole, wherein the protruding structure is formed in a direction facing the first module at each of the through-holes.

10. The battery heating device according to claim 9, wherein at least a part of the protruding structure is inserted into the opening.

11. The battery heating device according to claim 10, wherein the protruding structure has a cylindrical shape.

12. The battery heating device according to claim 11, wherein the inner diameter of the protruding structure is formed smaller than the diameter of the accommodation space.

13. The battery heating device according to claim 1, wherein the material of the first module includes a metallic substance.

14. The battery heating device according to claim 1, wherein the material of the second module includes a heat insulating substance.

15. The battery heating device according to claim 1, comprising a control module configured to detect the temperature of each of the accommodation spaces.

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