TWM575194U - battery - Google Patents

Abstract

A battery includes a first housing, a battery body, and a heat sink. The battery body is located within the first housing. The heat sink is in thermal contact with the battery body. The heat sink comprises a phase change material and a liquid cooling tube. The phase change material is located within the first housing. A portion of the liquid cooling tube is located within the first housing and is embedded with a phase change material.

Description

battery

The present invention relates to a battery, and more particularly to a battery that uses a phase change material and a liquid cooling tube for heat dissipation.

A phase-change material is a substance with high latent heat, meaning that the phase change material can absorb a large amount of heat when the state changes, and still maintain a certain temperature. The physical properties of the phase change material can be utilized in the field of battery heat dissipation. The solid phase change material is attached to the battery, and the heat generated by the battery can be absorbed before the phase change material is converted into a liquid state, thereby achieving heat dissipation to the battery. The function.

However, if the solid phase change material continues to heat up after absorbing enough heat, the phase change material will begin to convert to a liquid state. The liquid phase change material may flow into the interior of the battery and be electrically connected to the battery, so that the battery reduces the power supply function, and may even damage the internal structure of the battery to cause battery damage. Even if the liquid phase change material does not adversely affect the battery, the phase change material that is again converted to a solid state may not return to its original shape, and the efficiency of heat dissipation to the battery may be reduced.

The present invention provides a battery for solving the problem that a phase change material is easily converted into a liquid state in a battery that uses a phase change material to dissipate heat.

A battery disclosed in one embodiment of the present invention includes a first housing, a battery body, and a heat sink. The battery body is located within the first housing. The heat sink is in thermal contact with the battery body. The heat sink comprises a phase change material and a liquid cooling tube. The phase change material is located within the first housing. A portion of the liquid cooling tube is located within the first housing and is embedded with a phase change material.

According to the battery disclosed in the above embodiment, the heat of the phase change material is absorbed by the portion of the liquid cooling tube contacting the phase change material, and the heat is taken away from the battery body by the pipeline of the liquid cooling tube. In this way, heat is not concentrated in the phase change material, and the problem that the phase change material is easily converted into a liquid state can be avoided.

The above description of the present invention and the following description of the embodiments are intended to illustrate and explain the principles of the present invention and to provide a further explanation of the scope of the present application.

One embodiment of the present invention will be described below, first referring to Figs. 1 to 2. FIG. 1 is a perspective view of a battery according to an embodiment of the present invention. 2 is an exploded perspective view of the battery of FIG. 1.

The battery 10 of this embodiment includes a first housing 100, a battery body 200, and a heat sink 300. The battery body 200 is located within the first housing 100. The heat sink 300 thermally contacts the battery body 200. The so-called thermal contact means heat transfer between two objects, wherein the heat transfer can be heat conduction, heat convection or heat radiation. For example, heat conduction is directly or indirectly contacted between the heat sink 300 and the battery body 200, or the two are separated by a certain distance for heat radiation, or the two are used for heat conduction of the fluid and then the fluid is used. Convection. The thermal contact mentioned below includes one of the heat transfer modes, and thus the definition of the thermal contact to be described later will be omitted. The heat sink 300 includes a phase change material 310 and a liquid cooling tube 320. The phase change material 310 is, for example, a composite material that is a paraffin wax and is located within the first housing 100. A portion of the liquid cooling tube 320 is located within the first housing 100 and is embedded with the phase change material 310.

In detail, in this embodiment and some embodiments of the present invention, the battery 10 further includes an electrode 400 and a first heat conducting member 500. A portion of the electrode 400 protrudes from the first housing 100 and is electrically connected to the battery body 200. The battery body 200 can be electrically connected to an external device (not shown) through the electrode 400 and provide electrical power to the external device. The first heat conducting member 500 is located in the first housing 100 and covers the opposite sides of the battery body 200, but is not limited thereto. In some embodiments, the first heat conducting member may also cover the periphery of the battery body or completely cover the battery body. In this embodiment and some embodiments of the present invention, the first heat conducting member 500 is, for example, an electrically insulating material of Silicone to avoid electrical connection with the battery body 200 and affect the power supply performance of the battery 10. The thermal conductivity of the first heat conductive member 500 is greater than the thermal conductivity of the battery body 200, and thus the first heat conductive member 500 can quickly transfer heat generated by the battery body 200. The heat dissipating member 300 covers the opposite sides of the first heat conducting member 500 and is in thermal contact with the battery body 200 through the first heat conducting member 500, and absorbs heat transferred to the first heat conducting member 500 by utilizing the physical properties of the phase change material 310 having high latent heat. .

In this embodiment and some embodiments of the present invention, the liquid cooling tube 320 further includes an input end 321 , an output end 322 , and an intermediate section 323 . Both the input end 321 and the output end 322 protrude from the first housing 100 and are respectively connected to opposite sides of the intermediate section 323. The intermediate section 323 is located within the first housing 100. The intermediate section 323 is completely embedded in the phase change material 310 to conduct heat conduction with the phase change material 310 using a larger contact area, but is not limited thereto. In some embodiments, the intermediate section may only partially embed the phase change material. In this embodiment and some embodiments of the present invention, liquid cooling liquid (not shown) can flow into the liquid cooling tube 320 through the input end 321 , flow through the intermediate section 323 and absorb the heat of the phase change material 310, and finally The output terminal 322 flows out and carries heat away to achieve the effect of heat dissipation.

Then see Figure 3. FIG. 3 is an exploded perspective view of a battery according to another embodiment of the present invention. Only the differences between the other embodiments of the present invention and the foregoing partial embodiments will be described below, and the rest of the similarities will be omitted. In this embodiment and some embodiments of the present invention, the battery 10 further includes a second housing 600a. The second housing 600a is located within the first housing 100, meaning that the battery 10 is a structure having an inner housing. The battery body 200 and the first heat conducting member 500 are both located in the second housing 600a. The heat dissipating member 300 is sandwiched between the first housing 100 and the second housing 600a and thermally contacts the battery body 200 through the second housing 600a and the first heat conducting member 500 to absorb heat of the battery body 200. The second housing 600a prevents the liquid phase change material 310 from flowing into the second housing 600a once the phase change material 310 absorbs excessive heat to be converted into a liquid state to avoid adversely affecting the battery body 200.

Then see Figure 4. 4 is a perspective view of a battery according to still another embodiment of the present invention. Only the differences between the further embodiment of the present invention and some of the foregoing embodiments will be described below, and the rest of the similarities will be omitted. In this embodiment and some embodiments of the present invention, the battery 10 may further include a waterproof glue 700b. The first housing 100 is riveted to the second housing 600b, and the waterproof rubber 700b fills the riveting portion between the first housing 100 and the second housing 600b. In this way, it is possible to prevent liquid from flowing into the second casing 600b.

Then see Figure 5. FIG. 5 is an exploded perspective view of a battery according to still another embodiment of the present invention. Only the differences between the other embodiments of the present invention and the foregoing partial embodiments will be described below, and the rest of the similarities will be omitted. In this embodiment and some embodiments of the present invention, the battery 10 may further include a metal member 800c, wherein the metal member 800c is, for example, an aluminum plate. The metal member 800c thermally contacts the heat sink 300 and is located between the heat sink 300 and the second housing 600c. The heat dissipating member 300 can absorb the heat of the battery body 200 by thermally contacting the battery body 200 through the metal member 800c and the second housing 600c and the first heat conducting member 500. The heat sink 300 can be conveniently disposed by providing the metal member 800c. In detail, the first housing 100 and the metal member 800c can be used to separate the space in which the heat sink 300 is to be placed, and then the liquid phase change material 310 flows between the first housing 100 and the metal member 800c and is placed in the liquid. The cold tube 320 is configured to complete the heat dissipating member 300 after the phase change material 310 is cooled and solidified. Finally, the second housing 600c is disposed in the first housing 100 together with the battery body 200. In other embodiments, the battery may not be provided with a metal member, and the liquid cooling tube of the heat dissipating component may be embedded in the phase change material outside the battery, and then the heat dissipating member and the second housing are disposed in the first housing together with the battery body. .

Then see Figure 6. FIG. 6 is an exploded perspective view of a battery body according to another embodiment of the present invention. Only the differences between the other embodiments of the present invention and the foregoing partial embodiments will be described below, and the rest of the similarities will be omitted. In this embodiment and some embodiments of the present invention, the battery body 200d may further include a plurality of sheet-shaped cells 210d and a plurality of second heat-conducting members 220d. The second heat conducting member 220d is, for example, an electrically insulating material of the keloid to avoid electrical connection with the battery body 200d. The thermal conductivity of the second heat conducting member 220d is greater than the thermal conductivity of the sheet-like monomer 210d. These second heat conducting members 220d are in thermal contact with the sheet-like monomers 210d, respectively. Each of the sheet-like cells 210d is separated by each of the second heat-conducting members 220d, that is, each of the second heat-conducting members 220d is sandwiched between each two adjacent sheet-like cells 210d. These closely arranged sheet-like cells 210d structure can improve the power supply performance of the battery body 200, and the second heat-conducting member 220d can transfer the heat generated by the sheet-like unit 210d to prevent the temperature of the sheet-like unit 210d from being excessively high. In some embodiments, each of the sheet-like cells may be separated by two second heat-conducting members, and a heat dissipating member like the foregoing structure is disposed between the two second heat-conducting members, and the high latent heat of the phase change material is also utilized. Physical properties to dissipate heat from the sheet-like unit.

Then see Figure 7. 7 is a top cross-sectional view of a battery according to another embodiment of the present invention. Only the differences between the other embodiments of the present invention and the foregoing partial embodiments will be described below, and the rest of the similarities will be omitted. In this embodiment and some embodiments of the present invention, the battery body 200e may further include a plurality of columnar cells 230e. Each of the columnar cells 230e is connected to the first casing 100e, for example, by welding at one end. The first heat conducting member 500e covers the columnar monomer 230e, and the phase change material 310e is filled between the columnar cells 230e and is in thermal contact with the columnar cells 230e through the first heat conducting member 500e. The first heat conducting member 500e is located between the columnar monomer 230e and the phase change material 310e to avoid electrical connection between the columnar monomer 230e and the phase change material 310e. In addition, since the columnar unit 230e is connected to the first casing 100e, the columnar monomer 230e can retain support even if the phase change material 310e is converted into a liquid state. When the phase change material 310e absorbs the heat of the columnar monomer 230e, the heat is transferred to the liquid cooling tube 320e and is carried away by the liquid cooling liquid (not shown) as described above. The liquid cooling tubes 320e are located, for example, on opposite sides of the battery body 200e, that is, only the phase change material 310e is filled between the columnar cells 230e. In this way, the columnar cells 230e can be arranged in a dense manner to make full use of the space, but not limited thereto. In other embodiments, the liquid-cooled tube may also bypass the heat of the columnar monomer between the columnar monomers.

Then see Figure 8. FIG. 8 is a perspective view of a battery according to another embodiment of the present invention. Only the differences between the other embodiments of the present invention and the foregoing partial embodiments will be described below, and the rest of the similarities will be omitted. In this embodiment and some embodiments of the present invention, the battery 10f may further include an insulating member 900f. The insulating member 900f is, for example, an electrically insulating material of the keloid. The insulating member 900f is located in the first housing 100f and interposed between the electrode 400f and the heat sink 300f to prevent the electrode 400f from being electrically connected to the heat sink 300f to maintain the power supply performance of the battery 10f.

According to the battery of the above embodiment, the first heat conducting member can quickly transfer heat generated by the battery body. The heat dissipating member covers the opposite sides of the first heat conducting member, and utilizes the physical property of the phase change material having high latent heat to absorb a large amount of heat transferred to the first heat conducting member. The liquid cooling liquid can flow into the liquid cooling pipe through the input end, flow through the middle section and absorb the heat of the phase change material, and finally flows out from the output end and takes away the heat to achieve the heat dissipation effect.

In some embodiments, the heat sink is sandwiched between the first housing and the second housing to absorb heat from the battery body. The second housing prevents the liquid phase change material from flowing into the second housing once the phase change material absorbs excess heat and is converted to a liquid state to avoid adverse effects on the battery body.

In some embodiments, the battery may further comprise a waterproof glue. The waterproof glue fills the riveting portion between the first housing and the second housing. In this way, liquid can be prevented from flowing into the second casing.

In some embodiments, the battery may further include a metal member to facilitate the provision of the heat sink. In detail, the space between the first housing and the metal member is separated from the heat dissipating member, and the liquid phase change material is further flowed between the first housing and the metal member and placed in the liquid cooling tube, after the phase change material is cooled and solidified. That is, the setting of the heat sink is completed.

In some embodiments, the battery body may further include a plurality of sheet-shaped monomers and a plurality of second heat-conducting members. The closely arranged sheet-like unit structure can improve the power supply performance of the battery body, and the second heat-conducting member can transfer the heat generated by the sheet-like monomer to prevent the temperature of the sheet-like monomer from being too high.

In some embodiments, the battery body may further comprise a plurality of columnar monomers. The first heat conducting member covers the columnar monomer, and the phase change material is filled between the columnar monomers and is in thermal contact with the columnar monomer through the first heat conducting member. When the phase change material absorbs the heat of the columnar monomer, the heat is transferred to the liquid cooling tube and carried away by the liquid cooling liquid. The liquid cooling tubes are located on opposite sides of the battery body, meaning that only the phase change material is filled between the columnar cells. As a result, the columnar cells can be arranged in a denser manner to make full use of the space.

In some embodiments, the battery may further comprise an insulating member. The insulating member is interposed between the electrode and the heat sink to prevent the electrode from being electrically connected to the heat sink to maintain the power supply performance of the electrode.

Although the present invention has been described above in the foregoing embodiments, it is not intended to limit the present invention, and those skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. The scope of the new patent protection shall be subject to the definition of the scope of the patent application attached to this specification.

10, 10f‧‧‧ batteries

100, 100e, 100f‧‧‧ first housing

200, 200d, 200e‧‧‧ battery body

210d‧‧‧sheet monomer

220d‧‧‧second heat conducting parts

230e‧‧‧ columnar monomer

300, 300f‧‧‧ heat sink

310, 310e‧‧‧ phase change materials

320, 320e‧‧‧ liquid cooling tube

321‧‧‧ input

322‧‧‧output

323‧‧‧ Middle section

400, 400f‧‧‧ electrodes

500, 500e‧‧‧ first heat-conducting parts

600a, 600b, 600c‧‧‧ second housing

700b‧‧‧Waterproof glue

800c‧‧‧metal parts

900f‧‧‧Insulation

FIG. 1 is a perspective view of a battery according to an embodiment of the present invention. 2 is an exploded perspective view of the battery of FIG. 1. FIG. 3 is an exploded perspective view of a battery according to another embodiment of the present invention. 4 is a perspective view of a battery according to still another embodiment of the present invention. FIG. 5 is an exploded perspective view of a battery according to still another embodiment of the present invention. FIG. 6 is an exploded perspective view of a battery body according to another embodiment of the present invention. 7 is a top cross-sectional view of a battery according to another embodiment of the present invention. FIG. 8 is a perspective view of a battery according to another embodiment of the present invention.

Claims (10)

A battery comprising a first housing; a battery body located in the first housing; and a heat sink electrically contacting the battery body, the heat sink comprising a phase change material and a liquid cooling a tube, the phase change material is located in the first housing, and a portion of the liquid cooling tube is located in the first housing and embedded in the phase change material. The battery of claim 1, further comprising an electrode and a first heat conducting member, the electrode portion protruding from the first housing and electrically connected to the battery body, the first heat conducting member being located The first heat-conducting member is an insulating material, the first heat-conducting member has a thermal conductivity greater than a thermal conductivity of the battery body, and the heat-dissipating member covers the first heat-conducting member And thermally contacting the battery body through the first heat conducting member, the liquid cooling tube further comprises an input end, an output end and an intermediate portion, wherein the input end and the output end protrude from the first housing and are respectively connected The opposite sides of the intermediate section are located in the first housing, and a portion of the intermediate section is embedded in the phase change material. The battery of claim 2, further comprising a second housing, wherein the second housing is located in the first housing, the battery body and the first heat conducting member are located in the second housing, The heat dissipating member is interposed between the first housing and the second housing and is in thermal contact with the first heat conducting member through the second housing. The battery of claim 3, further comprising a metal member that is in thermal contact with the heat dissipating member and located between the heat dissipating member and the second housing, the heat dissipating member passing through the metal member The second housing is in thermal contact with the first heat conducting member to the battery body. The battery of claim 3, wherein the battery body further comprises a plurality of sheet-shaped cells and a plurality of second heat-conducting members, the second heat-conducting members being an insulating material, and the second heat-conducting members The thermal conductivity is greater than the thermal conductivity of the sheet-like monomers, and the second heat-conducting members respectively thermally contact the sheet-like monomers, and each of the second heat-conducting members is sandwiched between the sheet-like monomers. The battery of claim 3, further comprising a waterproof rubber, the first casing being riveted to the second casing, the waterproof rubber filling between the first casing and the second casing Riveting. The battery of claim 2, wherein the battery body further comprises a plurality of columnar cells, the columnar cells are connected to the first casing, and the first heat conducting member covers the columns Monomer, the phase change material is filled between the columnar monomers. The battery of claim 7, wherein the liquid cooling tube is located on opposite sides of the battery body. The battery of claim 7, further comprising an insulating member located in the first housing and interposed between the electrode and the heat sink. The battery of claim 2, wherein the first heat conducting member is Silicone.