KR101875534B1 - Battery Pack Tray Comprising Fixing Member having Latch Structure - Google Patents

Abstract

The present invention provides a battery pack comprising: a main body portion having a shape corresponding to an outer surface of the battery pack, the inner surface of the main body including a battery pack receiving portion embedded in a structure having an open side; An upper cushioning member and a lower cushioning member interposed respectively on the upper and lower surfaces of the battery pack housed in the accommodating portion; And a fixing member having a rectangular plate-like structure and mounted on an upper surface of the main body part so as to cover at least a part of the open part of the battery pack housing part.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a battery pack tray including a latch member,

The present invention relates to a battery pack tray including a fixing member of a latch structure.

In recent years, the demand for environmentally friendly alternative energy sources has become an indispensable factor for the future, as the increase in the price of energy sources due to depletion of fossil fuels and the interest in environmental pollution are amplified. Various researches on power generation technologies such as nuclear power, solar power, wind power, and tidal power have been continuing, and electric power storage devices for more efficient use of such generated energy have also been attracting much attention.

Particularly, as technology development and demand for mobile devices increase, the demand for batteries as energy sources is rapidly increasing. Recently, the use of secondary batteries as a power source for electric vehicles (EV) and hybrid electric vehicles (HEV) In addition, the use area has been expanded for use as a power auxiliary power source through a grid, and accordingly, a lot of researches on a battery that can meet various demands have been conducted.

Typically, in terms of the shape of a battery, there is a high demand for a prismatic secondary battery and a pouch-type secondary battery which can be applied to products such as mobile phones with a small thickness, and has advantages such as high energy density, discharge voltage, There is a high demand for lithium secondary batteries such as lithium ion batteries and lithium ion polymer batteries.

2. Description of the Related Art Generally, in a rechargeable battery, a plurality of secondary batteries are accommodated in a tray having a predetermined accommodating portion capable of accommodating the rechargeable battery in the form of a battery cell or a battery pack, As shown in FIG.

1 is a schematic view schematically showing a structure of a conventional battery pack tray.

1, the battery pack tray 100 has a shape corresponding to the outer surface of the battery pack 120 on the inner surface, and a battery pack receiving portion 110 formed on the top surface of the battery pack tray 100 .

The battery pack 120 is housed in each battery pack housing part 110 and the battery pack tray 100 in which the battery pack 120 is housed is stacked in the vertical direction.

Accordingly, the battery pack tray 102 located at the lower portion faces the lower surface of the battery pack tray 101 located at the upper portion of the battery pack housing portion with the upper surface of the battery pack housing portion opened, The battery pack 101 housed in the battery pack 101 faces the lower surface of the battery pack tray 101 located at the upper portion.

Accordingly, the battery pack housed in the lower battery pack tray 102 collides with the lower surface of the battery pack tray 101 located on the upper surface due to various factors such as a collision during the transportation process, .

Therefore, there is a high need for a technique capable of fundamentally solving such problems.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the prior art and the technical problems required from the past.

The inventors of the present application have conducted intensive research and various experiments and, as will be described later, by configuring the battery pack to include the upper buffer member and the lower buffer member and the fixing member to fix the battery pack, The flow of the battery pack can be removed or minimized in the pack housing part and the battery pack of the battery pack tray located at the bottom when stacking the battery pack tray faces or faces the lower surface of the battery pack tray located at the upper part It is possible to more easily and stably separate and connect the fixing member to the battery pack receiving portion of the battery pack tray by constructing the fixing member with the latch structure. It came.

According to an aspect of the present invention, there is provided a battery pack tray,

A main body portion having a shape corresponding to an outer surface of the battery pack with an inner surface thereof and including a battery pack receiving portion which is recessed in a structure having an open side;

An upper cushioning member and a lower cushioning member interposed respectively on the upper and lower surfaces of the battery pack housed in the accommodating portion; And

A fixing member having a rectangular plate-like structure and mounted on an upper surface of the main body portion so as to cover at least a part of the open portion of the battery pack housing portion;

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Therefore, the flow of the battery pack can be removed or minimized in the battery pack housing portion of the battery pack tray using the upper buffer member, the lower buffer member, and the fixing member, It is possible to prevent damage that may occur as a result of the battery pack of the battery pack facing or being directly against the lower surface of the battery pack tray located at the upper portion.

In one specific example, the one end and the other end opposite to each other of the fixing member may be fixed on the outer periphery of the outer periphery of the battery pack receiving portion on the upper surface of the main body portion.

In other words, the fixing member made of a rectangular plate-like structure may be structured such that both end portions thereof are fixed to different outer peripheries of the battery pack housing portion on the upper surface of the body portion, thereby covering at least a part of the open portion of the battery pack housing portion , Whereby the flow of the battery pack in the battery pack housing portion can be suppressed.

In this case, the fixing member includes fixing grooves respectively formed at one side end and the other end opposite to each other, and a fixing protrusion having a protruding structure is formed on the upper surface portion of the main body portion corresponding to the fixing groove Lt; / RTI >

In other words, the fixing grooves and the fixing protrusions may be formed on the top surface of the main body portion where both side ends of the fixing member and the both side ends are fixed to face each other.

Accordingly, the fixing member may have a latch structure in which the fixing grooves formed at both end portions of the fixing member are inserted into the fixing protrusions of the upper surface of the main body, respectively, to fix the battery pack to the battery pack receiving portion.

Here, the term of the latch structure means a latch structure in which a projection corresponding to one groove is inserted and coupled.

The fixing protrusion may have a horizontal cross-sectional shape corresponding to the fixing groove of the fixing member.

Therefore, the fastening protrusion can be easily inserted into the corresponding fastening groove, so that the fastening member including the fastening groove can be stably mounted.

At this time, the shape of the fixing protrusions and the fixing grooves are not limited as long as they are easily inserted into the fixing protrusions and can be stably combined. Specifically, the fixing protrusions and the fixing grooves may be circular in horizontal cross section.

Therefore, when separating the battery pack from the battery pack tray, the fixing member can be easily removed from the open portion of the battery pack housing portion by rotating the fixing member with only one side end of the fixing member separated .

In addition, since the other end portion of the fixing member in which only one end portion is separated is coupled to the upper surface of the main body portion of the battery pack tray, there is no need to separately store or manage the separated fixing member, There is no risk of loss, or it may be small.

In one specific example, if the fixing protrusion has a structure in which an end portion of the fixing protrusion opposite to the upper surface of the main body portion can be easily inserted into the fixing groove, the shape of the fixing protrusion is not limited to a specific one. At this time, the hemispherical end of the fixing protrusion may have a structure in which the horizontal cross-sectional area of the central portion is larger than the area of the fixing groove of the fixing member.

Therefore, the fixing projection has a horizontal cross-sectional area of a portion to be inserted into the fixing groove of the fixing member and a portion to be separated from the fixing groove, which is relatively smaller than a horizontal cross-sectional area of the fixing groove of the fixing member, Can be inserted and separated more easily.

In addition, according to the structure, it is possible to prevent the fixing groove, which is fixed by inserting the fixing protrusion, from being detached from the fixing protrusion due to a small external force, thereby releasing the fixing member from the battery pack tray, , The problem that the battery pack can not be stably fixed and the desired effect can not be exerted can be prevented.

If the end of the fixing protrusion opposed to the upper surface of the main body is formed in a polygonal shape other than hemispherical, it may not be easy to insert and separate the fixing protrusion into the fixing groove, The inner circumference of the fixing groove can be damaged by the edge portion of the fixing projection in the process of inserting the projection for fixing into the fixing groove of the fixing member.

If the fixing member covers the opening portion of the battery pack housing portion on the upper surface of the main body portion and is capable of stably fixing the battery pack housed in the battery pack housing portion, The fixing member may be configured such that one end portion and the other end portion of the fixing member which are opposite to each other are fixedly mounted on both sides of the outer periphery of the battery pack housing portion opposite to each other on the upper surface of the main body portion.

According to the above structure, the fixing member made of a rectangular plate-shaped structure can be fixedly mounted in a structure parallel to the outer periphery of one of the outer peripheries of the battery pack housing part.

In another specific example, the fixing member may have a structure in which one side end portion and the other side end portion opposite to each other are fixedly mounted on one side and the other side of the outer periphery of the battery pack receiving portion on the upper side of the main body portion .

In this case, the fixing member made of a rectangular plate-shaped structure can be fixedly attached to the outer periphery of the battery pack housing portion with a predetermined inclination.

In addition, at least two or more of the fixing members are mounted on the upper surface of the main body, and the fixing members may have a structure in which they are mounted parallel to each other or a structure in which they are mounted so as to intersect with each other.

In one specific example, the bottom surface of the main body may have a recessed portion recessed in the direction of the top surface of the main body portion except for the battery pack receiving portion.

More specifically, a fixing protrusion inserted into the fixing groove of the fixing member is protruded from the upper surface of the main body part. Accordingly, when the battery pack tray is vertically stacked, The protrusions can be inserted into the recesses formed in the lower surface of the battery pack tray located at the upper portion so as not to interfere with stacking of the battery pack tray in the vertical direction.

According to the structure, the fixing protrusion of the battery pack tray located at the lower portion stably supports the battery pack tray located at the upper portion, thereby preventing the upper battery pack tray from being deviated in the lateral direction Of course it is.

The upper cushioning member and the lower cushioning member may have a size and a shape corresponding to the upper and lower surfaces of the battery pack, respectively, on a horizontal cross section.

The upper cushioning member and the lower cushioning member are respectively disposed on the upper surface and the lower surface of the battery pack housed in the storage portion of the main body portion so that the battery pack is in face-to-face contact with the bottom surface of the battery compartment in the lower direction, So that the battery pack can be stably protected by preventing or minimizing the impact or damage to the battery pack.

Generally, since the battery pack is formed in a hexahedron shape, the top and bottom surfaces of the battery pack housed in the housing portion of the main body have the same shape and size on the horizontal cross section, The interposed upper cushioning member and lower cushioning member may also have the same shape and size.

In this case, the term size refers to an area on the horizontal cross section of the upper buffer member and the lower buffer member, and may include the concept of the thickness in addition to the area on the horizontal cross section.

Specifically, since the upper cushioning member and the lower cushioning member are housed in the receiving portion of the main body together with the battery pack, the total thickness of the upper and lower cushioning members and the lower cushioning member interposed therebetween is set such that the thickness of the battery pack And the remaining depth of the battery compartment excluding the thickness of the battery pack may be the same as the depth corresponding to the same divided depth.

Therefore, even though the upper buffer member and the lower buffer member are accommodated together with the battery pack in the storage unit of the main body unit, a part of the upper buffer member may not protrude above the storage unit.

The upper buffer member and the lower buffer member are disposed on the upper and lower surfaces of the battery pack in the housing portion of the main body, respectively, so that the type of the material is not limited as long as the battery pack can be stably fixed and protected. Specifically, it may be composed of a foamed resin or a foamed rubber, or a composite thereof.

At this time, the foamed rubber may be made of natural rubber or synthetic rubber including open or closed pores.

The synthetic rubber may be at least one selected from the group consisting of styrene butadiene rubber, polychloroprene rubber, nitrile rubber, butyl rubber, butadiene rubber, isoprene rubber, ethylene prefilene rubber, polysulfide rubber, silicone rubber, fluororubber, ≪ / RTI >

The foamed synthetic resin may be a polyolefin including open or closed pores, a polyester, a polyamide, a polyacetal, a polycarbonate, a polyimide, a polyether ketone, a polyether sulfone, a polyphenylene oxide, a polyphenylene sulfide, a polyethylene Polyvinylidene fluoride, polytetrafluoroethylene, polyfluorinated vinylidene, polyethylene terephthalate, polyvinyl chloride, polyacrylonitrile, nylon, polyparaphenylene benzobisoxazole, polyarylate, and polyurethane And may be made up of one or more materials selected.

Therefore, the upper cushioning member and the lower cushioning member can absorb shock or vibration by performing a predetermined buffering action with respect to the battery pack interposed therebetween due to the open or closed pores, so that the battery pack can be stably Can be protected.

Of course, the material of the upper buffer member and the lower buffer member is not limited thereto as long as they can be provided on the upper and lower surfaces of the battery pack in the receiving portion of the main body portion, respectively, to thereby exhibit a desired effect.

The present invention further provides a battery pack manufacturing apparatus using the battery pack tray, wherein the other components and the specific structure of the battery pack manufacturing apparatus are well known in the art, A detailed description thereof will be omitted.

As described above, the battery pack tray according to the present invention includes the upper buffer member, the lower buffer member, and the fixing member, so that the flow of the battery pack can be removed or minimized in the battery pack housing portion of the battery pack tray The battery pack tray of the battery pack tray located at the bottom when the battery pack tray is stacked can be prevented from being damaged due to direct contact or collision with the lower surface of the battery pack tray located at the upper portion, There is an effect that the fixing member can be more easily and stably separated and coupled to the battery pack housing portion of the battery pack tray.

1 is a schematic view schematically showing the structure of a conventional battery pack tray;
2 is a schematic view illustrating a structure of a battery pack tray according to an embodiment of the present invention;
3 is a vertical cross-sectional view schematically showing a structure in which a battery pack is mounted on a battery pack tray of FIG. 2 and stacked in a vertical direction;
FIG. 4 is a schematic view schematically showing the structure of the fixing groove of the fixing member of FIG. 2 and the fixing protrusion of the upper surface of the main body to be inserted therein;
5 is a schematic view showing a structure in which a fixing member of a battery pack tray according to another embodiment of the present invention is mounted;
FIG. 6 is a schematic view schematically showing a structure in which one end of the fixing member in FIG. 5 is separated. FIG.

Hereinafter, the present invention will be described in detail with reference to the drawings according to the embodiments of the present invention, but the scope of the present invention is not limited thereto.

2 is a schematic view schematically showing the structure of a battery pack tray according to an embodiment of the present invention.

2, the battery pack tray 200 includes a body 210, an upper cushioning member 221, a lower cushioning member 222, and a fixing member 240.

The body portion 210 has a shape corresponding to the outer surface of the battery pack 230 on the inner surface thereof and includes a battery pack housing portion 211 that is recessed in an open top surface.

The upper buffer member 221 and the lower buffer member 222 are respectively disposed on the upper and lower surfaces of the battery pack 230.

The fixing member 240 has a generally rectangular plate-like structure, and fixing grooves 241 are formed at one end and the other end, respectively.

Fixing protrusions 213 are formed on the upper surface of the main body 210 at portions corresponding to the fixing grooves 241 of the fixing member 240 in the outer periphery of the battery pack housing portion 211.

Therefore, when the battery pack is housed in the battery pack housing portion 211 with the upper buffer member 221 and the lower buffer member 222 interposed therebetween on the upper and lower surfaces of the battery pack 230, The fixing protrusion 213 of the main body 210 is inserted into the fixing groove 241 so that the battery pack 230 can be stably fixed.

FIG. 3 is a vertical cross-sectional view schematically showing a structure in which the battery pack is mounted on the battery pack tray of FIG. 2 in the vertical direction.

Referring to FIG. 3, the battery pack trays 200 and 300 are vertically stacked with the battery pack 230 housed therein.

The side surface of the main body 210 is not perpendicular to the upper surface, but has a predetermined angle in the lower surface direction, and the overall horizontal cross-sectional area of the lower surface is relatively larger than the horizontal cross-sectional area of the upper surface.

In addition, the lower surface of the main body 210 is recessed in the upper surface of the main body 210 except for the battery pack receiving portion 211.

Therefore, the upper surface portion of the body portion 310 located at the lower portion is partially embedded in the lower surface of the body portion 210 located at the upper portion.

The fixing protrusion 313 formed on the upper surface of the main body 310 of the lower battery pack tray 300 is located at the lower indentation portion 250 of the main body 210 of the upper battery pack tray 200, Does not interfere with the stacking of the trays 200 and 300.

The battery pack 230 has the same overall depth as the depth of the battery pack receiving portion 211 formed on the upper surface of the main body 210 with the upper buffer member 221 and the lower buffer member 222 interposed therebetween on the upper surface and the lower surface, Do.

Therefore, even if the battery pack 230 is stored in the battery pack housing portion 211 together with the upper buffer member 221 and the lower buffer member 222, the upper buffer member 221 protrudes from the upper surface of the main body 210 It does not.

FIG. 4 is a schematic view schematically showing the structure of the fixing groove of the fixing member of FIG. 2 and the fixing protrusion of the upper surface of the main body inserted into the fixing groove of FIG.

4, the fixing groove 241 of the fixing member 240 and the fixing protrusions 213 to be inserted into the fixing groove 240 are seen from the upper surface of the main body portion, the fixing groove 240 of the fixing member 240 A structure B viewed from the front of the main body portion and a structure C viewed from the front with the fixing protrusion 213 inserted into the fixing groove 241 are shown in Respectively.

The fixing groove 241 is formed at one end of the fixing member 240. The fixing protrusion 213 is formed on the upper surface of the main body portion so as to surround the outer peripheral portion of the battery pack housing portion corresponding to the fixing groove 241 As shown in Fig.

The fixing grooves 241 and the fixing projections 213 are circular in horizontal cross section.

The fixing protrusion 213 has an end portion 213c adjacent to the upper surface of the main body portion in a columnar shape and an end portion 213b facing the upper surface of the main body portion is hemispherical.

The columnar end 213c of the fixing protrusion 213 has a width corresponding to the width 241a of the fixing groove 241 and the opposite hemispherical end 213b has a width Is larger than the width 241a of the fixing groove 241. The width of the central portion 213a is larger than the width 241a of the fixing groove 241. [

Therefore, when the fastening protrusion 213 is inserted into the fastening groove 241, when the fastening member 240 is coupled to the upper surface of the main body, the hemispherical end 213b of the fastening protrusion 213 causes a small external force It is possible to prevent the fixing member 240 from being detached from the fixing protrusion 213 by the fixing protrusion 213. [

5 is a schematic view schematically showing a structure in which a fixing member of a battery pack tray according to an embodiment of the present invention is mounted.

5, in the battery pack tray 500, the upper buffer members 511 and 521 and the lower buffer member are interposed in the left and right battery pack receivers 510 and 520, respectively, And fixing members 512, 513, 522, and 523 are mounted on the upper buffering members 511 and 521, respectively.

The fixing members 512 and 513 on the left battery pack receiving portion 510 are mounted parallel to each other and the fixing members 522 and 523 on the right side battery pack receiving portion 520 are mounted so as to cross each other have.

However, the mounting structure of the fixing members 512, 513, 522, and 523 is not limited thereto, and if the battery pack can be stably fixed in the battery pack receiving portions 510 and 520, Is not limited to a large extent.

FIG. 6 is a schematic view schematically showing a structure in which one end of the fixing member of FIG. 5 is separated.

Referring to FIG. 6, the fixing grooves 512a and 513a at one end of the fixing members 512 and 513 are separated from the corresponding fixing protrusions 512b and 513b, respectively, (510).

The other end of the fixing members 512 and 513 in a state where only the fixing grooves 512a and 513a at one end are separated is coupled to the upper surface of the body portion 530 of the battery pack tray 500, It is not necessary to separately store or control the members 512 and 513 in a completely separated state, so that the fixing members 512 and 513 can be prevented from being lost or reduced.

Those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

Claims (20)

1. A battery pack tray comprising:
A main body portion including at least one battery pack receiving portion whose inner surface has a shape corresponding to an outer surface of the battery pack and which is recessed in a structure having an open side;
An upper cushioning member and a lower cushioning member interposed respectively on the upper and lower surfaces of the battery pack housed in the accommodating portion; And
A fixing member having a rectangular plate-like structure and disposed on an upper surface of the main body portion so as to cover at least a part of the opening portion of the battery pack housing portion; And,
Wherein the main body portion has a plurality of fixing projections for fixing the fixing member on an upper peripheral surface of the battery pack housing portion facing the longitudinal direction of the battery pack housing portion. The battery pack tray according to claim 1, wherein one side end and the other end opposite to each other of the fixing member are fixed on different outer peripheries of the outer periphery of the battery pack housing part on the upper surface of the main body part. The battery pack tray according to claim 1, wherein the fixing member includes fixing grooves formed at one side end and the other side opposite to each other, and the fixing groove is inserted into the fixing projection. The battery pack according to claim 3, wherein the fixing member is mounted in a latch structure in which fixing grooves formed at both ends of the fixing member are inserted into the fixing projections on the upper surface of the main body, Battery pack tray. The battery pack tray according to claim 3, wherein the fixing projections have a horizontal cross-sectional shape corresponding to a fixing groove of the fixing member. The battery pack tray according to claim 5, wherein the fixing protrusions and the fixing grooves are circular in horizontal cross section. The battery pack tray according to claim 3, wherein the fixing protrusion has a hemispherical end portion facing the upper surface of the main body portion. The battery pack tray according to claim 7, wherein the hemispherical end of the fixing protrusion has a horizontal cross-sectional area of a central portion thereof larger than an area of a fixing groove of the fixing member. The battery pack according to any one of claims 1 to 3, wherein the fixing member is fixedly mounted on both side surfaces opposite to each other of the outer periphery of the battery pack housing portion at one side end portion and the other end side opposite to each other, . The battery pack according to claim 1, wherein the fixing members are fixed and mounted on one side and the other side adjacent to each other of the outer periphery of the battery pack housing part on the upper surface of the main body part, Battery pack tray. The battery pack tray according to claim 1, wherein at least two or more fixing members are mounted on an upper surface of the main body, and the fixing members are mounted parallel to each other. The battery pack tray according to claim 1, wherein at least two or more of the fixing members are mounted on the upper surface of the main body, and the fixing members are mounted so as to intersect with each other. The battery pack tray according to claim 1, wherein a depressed portion is formed on a lower surface of the main body portion, except for the battery pack housing portion, recessed in the top surface direction of the main body portion. The battery pack tray according to claim 1, wherein the upper cushioning member and the lower cushioning member have a size and shape corresponding to the upper and lower surfaces of the battery pack, respectively, on a horizontal cross section. 15. The battery pack tray according to claim 14, wherein the upper buffer member and the lower buffer member have the same shape and size. The battery pack tray according to claim 1, wherein the upper buffer member and the lower buffer member are made of a foamed resin, a foamed rubber, or a composite thereof. The battery pack tray according to claim 16, wherein the foam rubber is made of natural rubber or synthetic rubber including open or closed pores. The rubber composition according to claim 17, wherein the synthetic rubber is selected from the group consisting of styrene butadiene rubber, polychloroprene rubber, nitrile rubber, butyl rubber, butadiene rubber, isoprene rubber, ethylene prefilene rubber, polysulfide rubber, silicone rubber, , And acrylic rubber. ≪ RTI ID = 0.0 > 1 < / RTI > 17. The method of claim 16, wherein the foamed synthetic resin is selected from the group consisting of polyolefins including open or closed pores, polyesters, polyamides, polyacetals, polycarbonates, polyimides, polyether ketones, polyethersulfones, polyphenylene oxides, Polyvinylidene fluoride, polyvinylidene fluoride, polyethylene terephthalate, polyvinyl chloride, polyacrylonitrile, nylon, polyparaphenylene benzobisoxazole, polyarylate, and polyurethane And at least one material selected from the group consisting of: An apparatus for manufacturing a battery pack, wherein a battery pack tray according to any one of claims 1 to 19 is used.

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