CN112687975A - Electronic equipment and heat dissipation method - Google Patents
Electronic equipment and heat dissipation method Download PDFInfo
- Publication number
- CN112687975A CN112687975A CN201910994149.9A CN201910994149A CN112687975A CN 112687975 A CN112687975 A CN 112687975A CN 201910994149 A CN201910994149 A CN 201910994149A CN 112687975 A CN112687975 A CN 112687975A
- Authority
- CN
- China
- Prior art keywords
- heat
- battery
- film
- heat dissipation
- heat storage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The disclosure provides electronic equipment and a heat dissipation method, and belongs to the technical field of electronics. The battery, the heat storage film and the heat dissipation film are positioned inside the shell; the battery is attached to the first side of the heat storage film, the heat dissipation film is attached to the second side of the heat storage film, and the first side and the second side are opposite or adjacent; at least part of the heat dissipation film is attached to the shell; the heat storage film absorbs and stores heat emitted by the battery, at least part of the stored heat is transferred to the heat dissipation film, the heat dissipation film at least partially transfers the heat received by the heat dissipation film to the shell, and the shell emits the heat inside to the outside of the electronic equipment. The heat storage film absorbs the heat emitted by the battery, delays and reduces the temperature of the surface of the battery, ensures the balance of the temperature of the battery, and prevents electrons from breaking down due to the rise of the temperature. And ensure that the heat generated during the charging and discharging of the battery is quickly dissipated to the outside of the electronic equipment. And only need on the battery laminating heat storage membrane and heat dissipation membrane can, simple structure, occupation space is little, has realized electronic equipment's miniaturization.
Description
Technical Field
The present disclosure relates to the field of electronic technologies, and in particular, to an electronic device and a heat dissipation method.
Background
With the development of electronic technology, the charging rate of electronic devices is faster and faster, and the charging current required for charging is larger and larger, so that the heat generated by the battery is gradually increased, and the temperature of the battery is also increased. The temperature rise affects the operation state of the battery, and therefore, it is required to lower the temperature of the battery.
In the related art, an electronic device includes an aluminum outer case and a ceramic inner case, a cooling cavity is formed between the aluminum outer case and the ceramic inner case, a battery is disposed inside the ceramic inner case, a heat dissipation pipe is sleeved on the battery, two ends of the heat dissipation pipe are connected with the ceramic inner case and communicated with the cooling cavity, and a cooling liquid is disposed in the cooling cavity and the heat dissipation pipe. When the battery generates heat, the cooling fluid in the radiating pipe transfers the heat of the battery to the aluminum housing, and the aluminum housing radiates the heat to the outside of the electronic equipment. However, the electronic device has a complicated structure and occupies a large space.
Disclosure of Invention
The present disclosure provides an electronic device and a heat dissipation method, which can overcome the problems in the related art, and the technical scheme is as follows:
in a first aspect, an electronic device is provided, which includes: a battery, a heat storage film, a heat dissipation film and a shell;
the battery, the heat storage film and the heat dissipation film are positioned inside the housing;
the battery is attached to the first side of the heat storage film, the heat dissipation film is attached to the second side of the heat storage film, and the first side is opposite to or adjacent to the second side;
the heat dissipation film is at least partially attached to the shell;
the heat storage film absorbs and stores heat emitted by the battery, at least part of the stored heat is transferred to the heat dissipation film, the heat dissipation film at least partially transfers the heat received by the heat dissipation film to the shell, and the shell dissipates the heat inside the electronic device.
In one possible implementation manner, the heat storage film is attached to a high heat generation area of the battery, the high heat generation area is an area where the heating power is greater than a preset threshold value when the battery is charged and discharged, and the heat dissipation film covers an area except an electric contact point in the battery.
In another possible implementation manner, the high heat-generation region of the battery comprises a positive tab and a negative tab, and the positive tab and the negative tab are both attached to the first side of the heat storage film.
In another possible implementation manner, the thickness of the heat storage film is 0.5 mm-2 mm.
In another possible implementation manner, the length of the heat storage film is less than half of the length of the battery, and the width of the heat storage film is equal to the width of the battery.
In another possible implementation, the thickness of the heat dissipation film is 0.1 mm to 2 mm.
In another possible implementation, the housing includes a middle frame, the heat dissipation film has a width greater than a width of the battery, and the heat dissipation film is in contact with the middle frame.
In another possible implementation manner, the heat storage film is a thermal phase change material heat storage film or a thermal change material heat storage film.
In another possible implementation, the housing includes a back cover and a middle frame; at least part of the rear cover or at least part of the middle frame is made of metal materials, and the heat dissipation film is attached to the metal part of the shell.
In a second aspect, a heat dissipation method for an electronic device is provided, where the electronic device includes a battery, a heat storage film, a heat dissipation film, and a housing; the battery, the heat storage film and the heat dissipation film are located inside the shell, the battery is attached to a first side of the heat storage film, the heat dissipation film is attached to a second side of the heat storage film, the first side is opposite to or adjacent to the second side, at least part of the heat dissipation film is attached to the shell, and the method comprises the following steps:
the heat storage film absorbs and stores the heat emitted by the battery and transfers at least part of the stored heat to the heat dissipation film;
the heat dissipation film at least partially transfers the heat received by the heat dissipation film to the housing;
the housing dissipates heat from the interior to the exterior of the electronic device.
In one possible implementation manner, the heat storage film is attached to a high heat production area of the battery, the high heat production area is an area where the heating power is greater than a preset threshold value during charging and discharging of the battery, the high heat production area of the battery includes a positive tab and a negative tab, the positive tab and the negative tab are both attached to the first side of the heat storage film, and the heat storage film absorbs the heat, including:
the heat storage film absorbs the heat emitted by the positive electrode tab and the negative electrode tab.
The electronic equipment comprises a battery, a heat storage film, a heat dissipation film and a shell, wherein the battery, the heat storage film and the heat dissipation film are all located inside the shell, the battery is attached to a first side of the heat storage film, the heat dissipation film is attached to a second side of the heat storage film, the first side and the second side are opposite or adjacent, and at least part of the heat dissipation film is attached to the shell. When the battery gives off heat, because heat storage membrane and battery laminating, consequently, the heat that the heat storage membrane can absorb and the storage battery gived off delays and reduces the temperature on battery surface, guarantees the equilibrium of battery temperature, and guarantees that the temperature of battery can not rise in the short time, prevents that the battery from breaking down because the temperature is too high. And the heat-retaining membrane can also be with heat transfer to the heat dissipation membrane, by the heat dissipation membrane transfer to the shell with this heat dissipation membrane laminating, give off the electronic equipment outside with the heat by the shell again, realized giving off the effect of the outside of electronic equipment with the heat that the battery produced, the heat that produces when guaranteeing to charge and discharge the battery gives off the electronic equipment outside fast, guarantees the safe handling of battery. And only need on the battery laminating heat storage membrane and heat dissipation membrane can, simple structure, occupation space is little, has realized electronic equipment's miniaturization.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a schematic diagram illustrating a top-down configuration of an electronic device in accordance with an exemplary embodiment;
FIG. 2 is a side view schematic diagram of an electronic device in accordance with an exemplary embodiment;
FIG. 3 is a side view schematic diagram of an electronic device in accordance with an exemplary embodiment;
FIG. 4 is a schematic diagram illustrating another electronic device according to an example embodiment;
FIG. 5 is a schematic diagram illustrating another electronic device in accordance with an exemplary embodiment;
fig. 6 is a flow chart illustrating a method of dissipating heat from an electronic device according to an example embodiment.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are some, but not all embodiments of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Fig. 1 is a schematic top view of an electronic device according to an exemplary embodiment. Fig. 2 is a schematic side view of an electronic device according to an exemplary embodiment. Referring to fig. 1 and 2, the electronic apparatus includes a battery 1, a heat storage film 2, a heat dissipation film 3, and a case 4.
The electronic device can be a mobile phone, a tablet computer, a personal computer and the like.
The electronic apparatus is provided with a case 4, and the battery 1, the heat storage film 2, and the heat dissipation film 3 are all located inside the case 4.
The battery 1 is attached to the first side of the heat storage film 2, the heat dissipation film 3 is attached to the second side of the heat storage film 2, the first side and the second side of the heat storage film 2 are opposite or adjacent, and at least part of the heat dissipation film 3 is attached to the shell 4.
As shown in fig. 2, when the first side of the heat storage film 2 is opposite to the second side, that is, the heat dissipation film 3 and the heat storage film 2 are located at two layers, and the heat dissipation film 3 and the heat storage film 2 belong to an upper-lower layer relationship. As shown in fig. 3, when the first side and the second side of the heat storage film 2 are adjacent, that is, the heat dissipation film 3 and the heat storage film 2 are located in one layer, the heat dissipation film 3 and the heat storage film 2 are in adjacent relation.
When a battery 1 in an electronic device is charged or discharged, the battery 1 generates heat, and since the heat storage film 2 is attached to the battery 1, the heat storage film 2 can absorb and store the heat emitted from the battery 1 and transfer at least part of the stored heat to the heat dissipation film 3, and the heat dissipation film 3 transfers at least part of the heat received by itself to the housing 4, and the housing 4 dissipates the heat inside to the outside of the electronic device.
The battery 1 may be a single-cell battery, or may be a multi-cell battery formed by connecting multiple cells in series or in parallel. Since the battery 1 passes a current during charging or discharging, the battery 1 generates heat, which increases the temperature of the battery 1.
When the battery 1 generates heat, the heat storage film 2 absorbs the heat generated by the battery 1, and the heat storage film 2 also emits the absorbed heat to the heat dissipation film 3.
Through setting up heat storage membrane 2 in electronic equipment, and laminating in battery 1 and the first side of heat storage membrane 2, when battery 1 produced heat, this heat storage membrane 2 can absorb the heat that battery 1 produced, and battery 1 also can not consequently produce heat and lead to the temperature to rise, and this heat storage membrane 2 absorbs the heat through phase transition reaction, and this heat storage membrane 2's temperature also can not change, guarantees that battery 1's temperature is in normal condition.
In one possible implementation manner, the heat storage film 2 is attached to a high heat generation region of the battery 1, where the heat generation power is greater than a preset threshold value when the battery 1 is charged and discharged.
Wherein the preset threshold may be set by a technician or by other means.
In another possible implementation manner, the heat storage film 2 used by the electronic device is made of a thermal phase change material or a thermal change material with heat absorption capability and heat dissipation capability, that is, the heat storage film 2 used by the electronic device is a thermal phase change material heat storage film or a thermal change material heat storage film. The thermal phase change material can be an inorganic phase change material, an organic phase change material, a composite phase change material and the like. The inorganic phase change material may be sulfate, nitrate, etc. The composite phase change material can be aliphatic hydrocarbon, fatty acid, alcohol, polyenol, polyalcohol, high molecular, layered perovskite and the like. The composite phase-change material can be a paraffin and expanded graphite composite material, a porous matrix and organic material composite material and the like.
Wherein, when the battery 1 generates heat, the thermal phase change material absorbs the heat of the battery 1 through its phase change reaction, and the thermal phase change material can also emit the absorbed heat through the phase change reaction.
The phase change reaction is a process of converting the thermal phase change material from one phase to another phase, and the phase change material only comprises three conditions of a gas phase, a liquid phase and a solid phase, so that the conversion between the gas phase and the liquid phase, the conversion between the liquid phase and the solid phase and the like are all phase change reactions.
By adopting the thermal phase change material to manufacture the heat storage film 2, the heat generated by the battery 1 can be absorbed, and the absorbed heat can be emitted.
In another possible implementation manner, the thickness of the heat storage film 2 adopted by the electronic device is 0.5 mm to 2 mm.
In another possible implementation, the length of the heat storage film 2 is less than half of the length of the battery 1, and the width of the heat storage film 2 is equal to the width of the battery 1.
The heat storage film 2 is used for absorbing heat generated by the battery 1, and the length of the heat storage film 2 is half of that of the battery 1, so that the heat generated by the battery 1 can be stored without arranging the heat storage film 2 with a large area.
In another possible implementation manner, the high heat-generating region of the electronic device is usually located in the upper half of the electronic device, that is, the upper half of the battery 1, so that the length of the heat storage film 2 is set to be less than half of the length of the battery 1, and the heat storage film 2 covers the high heat-generating region, so that the heat generated in the high heat-generating region can be absorbed by the heat storage film 2.
The heat dissipation film 3 in the electronic device can transfer heat, and after the heat storage film 2 radiates heat, the heat dissipation film 3 can transfer the heat radiated by the heat storage film 2 to the connected housing 4. Through set up heat dissipation membrane 3 in electronic equipment, and this heat dissipation membrane 3 is close with the second side laminating of heat-retaining membrane 2, when heat storage membrane 2 gived off the heat, by heat dissipation membrane 3 with heat transfer to shell 4, give off the electronic equipment outside by shell 4 again, prevent that the inside temperature of electronic equipment from rising in the short time, also prevent that the temperature of battery 1 from rising in the short time.
Wherein, the heat dissipation film 3 is made of a material having a high thermal conductivity, and can rapidly transfer heat.
In one possible implementation, the heat dissipation film 3 covers the area of the battery 1 other than the electrical contact points. Can guarantee that battery 1 supplies power for electronic equipment through the electrical contact, and guaranteed radiating film 3 and heat-retaining membrane 2 and battery 1's area of contact, and then guarantee radiating film 3 can be fast with the heat transfer to shell 4 that battery 1 produced, give off electronic equipment's outside with the heat of inside by shell 4, improved the radiating efficiency.
In another possible implementation manner, the material of the heat dissipation film 3 adopted by the electronic device may be graphene, graphite, silicon, a thermal conductive gel, or the like. And the thickness of the heat dissipation film 3 adopted by the electronic equipment is 0.1 mm to 2 mm.
When the heat dissipation film 3 is made of graphene, the granularity of the graphene is not greater than 50 microns, and the number of the sheets of the heat dissipation film 3 is not greater than 10. Thereby ensuring that the thickness of the heat dissipation film 3 made of graphene is 0.1 mm to 2 mm.
In a possible implementation manner, the housing 4 adopted by the electronic device includes a middle frame, that is, the battery 1 is located inside the middle frame, the width of the heat dissipation film 3 is greater than the width of the battery 1, it is ensured that the heat dissipation film 3 is in contact with the middle frame of the housing 4, and it is further ensured that the heat dissipation film 3 transfers at least part of the heat received by itself to the housing 4 through the middle frame, and the housing 4 dissipates the heat inside to the outside of the electronic device.
In another possible implementation, the difference between the width of the heat dissipation film 3 and the width of the battery 1 is 0.2 mm to 2 mm.
In a possible implementation manner, the casing 4 used in the electronic device includes a back cover and a middle frame, the back cover is at least partially made of metal material or the middle frame is at least partially made of metal material, and the heat dissipation film 3 is attached to the metal part of the casing 4. Therefore, the heat dissipation film 3 transfers the heat to the metal part of the housing 4, and the metal has stronger heat dissipation capability, thereby enhancing the heat dissipation capability of the housing 4 of the electronic device and quickening the heat dissipation of the housing 4 to the outside of the electronic device.
The electronic equipment provided by the embodiment of the disclosure comprises a battery, a heat storage film, a heat dissipation film and a shell, wherein the battery, the heat storage film and the heat dissipation film are all located inside the shell, the battery is attached to the first side of the heat storage film, the heat dissipation film is attached to the second side of the heat storage film, the first side is opposite to the second side, and the heat dissipation film is attached to the shell. When the battery gives off heat, the heat-retaining membrane can absorb and the heat that the storage battery gived off, guarantees that the temperature of battery can not rise in the short time, delays and reduces the temperature on battery surface, guarantees the equilibrium of battery temperature, prevents that the battery from breaking down because the temperature is too high. And the heat storage membrane can also transmit heat to the heat dissipation membrane, is transmitted to the shell that laminates with this heat dissipation membrane by the heat dissipation membrane, and is given off the heat to the electronic equipment outside by the shell again, has realized giving off the outside effect of electronic equipment with the heat that the battery produced. The heat generated during the charging and discharging of the battery is quickly dissipated to the outside of the electronic equipment, and the safe use of the battery is ensured. And only need on the battery laminating heat storage membrane and heat dissipation membrane can, electronic equipment's simple structure, occupation space is little, has realized electronic equipment's miniaturization.
In a possible implementation manner, the battery 1 includes an upper surface, a lower surface and four side surfaces, and the areas of the upper surface and the lower surface are greater than the areas of the four side surfaces, so that the first side of the heat storage film 2 is attached to the lower surface of the battery 1, and compared with the attachment of the side surface of the battery 1 to the first side of the heat storage film 2, the contact area between the heat storage film 2 and the battery 1 is increased, and it is ensured that the heat storage film 2 can absorb more heat generated by the battery 1, thereby preventing the temperature of the battery 1 from rising.
In one possible implementation, the casing 4 of the electronic device comprises a back cover, the heat dissipation film 3 being conformed to the inner surface of the back cover. And the first side of the heat storage film 2 is the side of the heat storage film 2 far away from the rear cover, and the second side of the heat storage film 2 is the side of the heat storage film 2 close to the rear cover or the side adjacent to the first side of the heat storage film 2.
Wherein, the display screen that one side relative with this electronic equipment's back lid is electronic equipment and sets up, because electronic equipment's back lid area is great, with the laminating of the internal surface of heat dissipation membrane and this back lid, also guarantee that heat dissipation membrane 3 is great with shell 4's area of contact, can be through heat transfer to shell 4's back lid with heat dissipation membrane 3, give off electronic equipment's outside with the heat by shell 4's back lid, prevent that the heat that battery 1 produced from leading to battery 1's temperature rising.
In another possible implementation manner, the casing 4 of the electronic device includes a frame, the heat dissipation film 3 is attached to an inner surface of the frame of the casing 4, the heat dissipation film 3 transfers heat to the frame of the casing 4, and the frame of the casing 4 dissipates heat to the outside of the electronic device, so as to prevent the temperature of the battery 1 from rising due to the heat generated by the battery 1.
For example, the frame of the housing 4 is formed by connecting four frame structures, and the inner surface of the frame of the housing 4 may include a first inner surface, a second inner surface, a third inner surface, and a fourth inner surface, the first inner surface being opposite to the third inner surface, and the second inner surface being opposite to the fourth inner surface. The heat dissipation film 3 may be attached to at least one of the first inner surface, the second inner surface, the third inner surface, and the fourth inner surface.
In the embodiment of the present disclosure, any one of the following structures can be obtained by combining the schemes of "attaching the first side of the heat storage film 2 to the lower surface of the battery 1", "attaching the heat dissipation film 3 to the inner surface of the rear cover", and "attaching the heat dissipation film 3 to the side surface of the case 4":
the first structure, the first side of the heat storage film 2 is attached to the lower surface of the battery 1, the first side of the heat dissipation film 3 is attached to the second side of the heat storage film 2, and the second side of the heat dissipation film 3 is attached to the inner surface of the rear cover of the housing 4, so that the heat dissipation film 3 can transfer the heat of the heat storage film 2 to the inner surface of the rear cover, and the rear cover dissipates the heat to the outside of the electronic device.
The second structure is that the first side of the heat storage film 2 is attached to the lower surface of the battery 1, the heat dissipation film 3 is attached to the second side of the heat storage film 2, and the heat dissipation film 3 is attached to the inner surface of the frame of the shell 4. Therefore, the heat dissipation film 3 can transfer the heat of the heat storage film 2 to the frame of the housing 4, and the frame of the housing 4 can dissipate the heat to the outside of the electronic device.
Structure three, the laminating of the first side of this heat-retaining membrane 2 and the lower surface of this battery 1, and the laminating of the second side of this heat-retaining membrane 2 and this heat dissipation membrane 3, this heat dissipation membrane 3 not only with the laminating of the internal surface of the back lid of this shell 4, still with the laminating of the internal surface of the frame of this shell 4. The heat dissipation film 3 can transfer the heat of the heat storage film 2 to the rear case and the frame of the housing 4, and the heat is dissipated to the outside of the electronic device by the rear case and the frame of the housing 4.
In the embodiment of the present disclosure, the heat storage film 2 is merely attached to the lower surface of the battery 1. In another embodiment, the heat storage film 2 may also be attached to the upper surface of the battery 1, or the heat storage film 2 may be attached to the side surface of the battery 1.
Through the lower surface laminating of the first side with heat storage membrane 2 and battery 1, and the internal surface laminating of the back lid of heat dissipation membrane 3 and shell 4, laminate heat dissipation membrane 3 and the second side of heat storage membrane 2, the area of contact of heat storage membrane 2 and battery 1 has both been improved, the area of contact of heat storage membrane 2 and heat dissipation membrane 3 has also been improved, guarantee that heat storage membrane 2 in time absorbs the heat that battery 1 produced, can also guarantee that heat dissipation membrane 3 in time transmits the heat to shell 4, prevent that the heat that battery 1 produced from causing the rising of battery 1 temperature, and only set up heat storage membrane 2 and heat dissipation membrane 3 in electronic equipment and can dispel the heat that battery 1 produced, moreover, the steam generator is simple in structure, and the occupation space is small, and miniaturization of electronic equipment is realized.
In one possible implementation, the high heat-producing region of the battery 1 in the electronic device includes a positive tab 5 and a negative tab 6, the positive tab 5 being a contact point of the positive pole of the battery 1, and the negative tab 6 being a contact point of the negative pole of the battery 1. Because the positive tab 5 and the negative tab 6 of the battery 1 generate more heat when the battery 1 is charged or discharged, the positive tab 5 and the negative tab 6 are both attached to the first side of the heat storage film 2, and the heat emitted from the positive tab 5 and the negative tab 6 is absorbed by the heat storage film 2.
Wherein the battery 1 comprises a first end and a second end, the first end and the second end being opposite. The positive tab 5 and the negative tab 6 of the battery 1 may be located on the same end of the battery 1 or the positive tab 5 and the negative tab 6 of the battery 1 may be located on different ends of the battery 1.
When the positive tab 5 and the negative tab 6 of the battery 1 are located at the same end of the battery 1, the positive tab 5 and the negative tab 6 concentrate on one end of the battery 1 for heat dissipation, one end of the battery 1 where the positive tab 5 and the negative tab 6 are located is taken as a first end, a heat storage film 2 is arranged at the first end of the battery 1, the first end of the battery 1 is covered by the heat storage film 2, and the heat emitted by the positive tab 5 and the negative tab 6 is absorbed through the heat storage film 2.
For example, as shown in fig. 4, the battery 1 includes two cells, and one positive tab 5 and one negative tab 6 are disposed in each cell, so that two positive tabs 5 and two negative tabs 6 are included at a first end of the battery 1, the heat storage film 2 is disposed at the first end of the battery 1, and the heat storage film 2 covers the first end of the battery 1, and heat emitted from the two positive tabs 5 and the two negative tabs 6 is absorbed by the heat storage film 2 to prevent a temperature increase of the battery 1.
When the positive tab 5 and the negative tab 6 of the battery 1 of the electronic device are located at different ends of the battery 1, the positive tab 5 and the negative tab 6 radiate heat at different ends of the battery 1, for example, the positive tab 5 is located at a first end of the battery 1, and the negative tab 6 is located at a second end of the battery 1, so that a first heat storage film is disposed at the first end of the battery 1, and covers the first end of the battery 1, so that the first heat storage film covers the positive tab 5 of the battery 1, a second heat storage film is disposed at the second end of the battery 1, and the second heat storage film covers the second end of the battery 1, so that the second heat storage film covers the negative tab 6 of the battery 1, the heat radiated by the positive tab 5 is absorbed by the first heat storage film, and the heat radiated by the negative tab 6 is absorbed by the second heat storage film.
For example, as shown in fig. 5, the positive tab 5 and the negative tab 6 in the battery 1 are located at different ends of the battery, so a first heat storage film is disposed at a first end of the battery 1, the first heat storage film covers the first end of the battery 1, a second heat storage film is disposed at a second end of the battery 1, the second heat storage film covers a second end of the battery 1, when the positive tab 5 and the negative tab 6 generate heat, the first heat storage film can absorb the heat generated by the positive tab 5 in time, and the second heat storage film can absorb the heat generated by the negative tab 6 in time, so as to prevent the temperature of the battery 1 from increasing.
In one possible implementation manner, in the embodiment of the present disclosure, the heat storage film 2 is disposed only at one end of the battery where the positive tab 5 and the negative tab 6 are located, and the heat storage film 2 is not disposed at the end other than the end where the positive tab 5 and the negative tab 6 are located. Compared with the case that the heat storage films 2 are arranged at the two ends of the battery 1, the usage amount of the heat storage films 2 is reduced, and the internal space of the electronic equipment is saved.
Fig. 6 is a flowchart illustrating a heat dissipation method of an electronic device according to an exemplary embodiment, referring to fig. 6, the electronic device including a battery, a heat storage film, a heat dissipation film, a housing; the battery, the heat storage film and the heat dissipation film are located inside the shell, the battery is attached to the first side of the heat storage film, the heat dissipation film is attached to the second side of the heat storage film, the first side is opposite to or adjacent to the second side, at least part of the heat dissipation film is attached to the shell, and the method comprises the following steps:
in step 601, the heat storage film absorbs and stores the heat emitted from the battery, and transfers at least part of the stored heat to the heat dissipation film.
In step 602, the heat dissipation film transfers at least a portion of the heat received by itself to the housing.
In step 603, the housing dissipates heat from the interior to the exterior of the electronic device.
The electronic equipment provided by the embodiment of the disclosure comprises a battery, a heat storage film, a heat dissipation film and a shell, wherein the battery, the heat storage film and the heat dissipation film are all located inside the shell, the battery is attached to a first side of the heat storage film, the heat dissipation film is attached to a second side of the heat storage film, the first side is opposite to or adjacent to the second side, and at least part of the heat dissipation film is attached to the shell. When the battery gives off heat, the heat-retaining membrane can absorb and the heat that the storage battery gived off, delays and reduces the temperature on battery surface, guarantees the equilibrium of battery temperature, and guarantees that the temperature of battery can not rise in the short time, prevents that the battery from breaking down because the temperature risees. And the heat storage membrane can also transmit heat to the heat dissipation membrane, is transmitted to the shell that laminates with this heat dissipation membrane by the heat dissipation membrane, and is given off the heat to the electronic equipment outside by the shell again, has realized giving off the outside effect of electronic equipment with the heat that the battery produced. The heat generated during the charging and discharging of the battery is quickly dissipated to the outside of the electronic equipment, and the safe use of the battery is ensured. And only need on the battery laminating heat storage membrane and heat dissipation membrane can, electronic equipment's simple structure, occupation space is little, has realized electronic equipment's miniaturization.
In one possible implementation, the thermal storage film is attached to a high heat output region of the battery, the high heat output region is a region where the heating power is greater than a preset threshold value when the battery is charged or discharged, the high heat output region of the battery comprises a positive electrode tab and a negative electrode tab, the positive electrode tab and the negative electrode tab are both attached to a first side of the thermal storage film, and the thermal storage film absorbs heat, including:
the heat storage film absorbs the heat emitted by the positive electrode tab and the negative electrode tab.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (12)
1. An electronic device, characterized in that the electronic device comprises: the solar cell comprises a battery (1), a heat storage film (2), a heat dissipation film (3) and a shell (4);
the battery (1), the heat storage film (2) and the heat dissipation film (3) are positioned inside the housing (4);
the battery (1) is attached to a first side of the heat storage film (2), the heat dissipation film (3) is attached to a second side of the heat storage film (2), and the first side is opposite to or adjacent to the second side;
the heat dissipation film (3) is at least partially attached to the shell (4);
the heat storage film (2) absorbs and stores heat emitted by the battery (1) and transfers at least part of the stored heat to the heat dissipation film (3); the heat dissipation film (3) at least partially transfers the heat received by the heat dissipation film to the shell (4), and the shell (4) dissipates the heat inside to the outside of the electronic equipment.
2. The electronic device according to claim 1, wherein the heat storage film (2) is attached to a high heat generation region of the battery (1), the high heat generation region being a region in which a heat generation power is greater than a preset threshold value when the battery (1) is charged and discharged, and the heat dissipation film (3) covers a region of the battery (1) other than an electrical contact point.
3. The electronic device according to claim 2, wherein the high heat-production region of the battery (1) comprises a positive tab (5) and a negative tab (6), the positive tab (5) and the negative tab (6) each being attached to the first side of the heat storage film (2).
4. The electronic device according to claim 1, wherein the thickness of the heat storage film (2) is 0.5 mm to 2 mm.
5. The electronic device according to claim 1, wherein the length of the heat storage film (2) is less than half the length of the battery (1), and the width of the heat storage film (2) is equal to the width of the battery (1).
6. The electronic device according to claim 1, wherein the thickness of the heat dissipation film (3) is 0.1 mm to 2 mm.
7. The electronic device according to claim 1, characterized in that the housing (4) comprises a middle frame, the width of the heat dissipation film (3) is larger than the width of the battery (1), and the heat dissipation film (3) is in contact with the middle frame.
8. The electronic device according to claim 7, wherein the difference between the width of the heat dissipation film (3) and the width of the battery (1) is 0.2 mm-2 mm.
9. An electronic device according to any one of claims 1-8, characterized in that the heat storage film (2) is a thermal phase change material heat storage film or a thermal change material heat storage film.
10. An electronic device according to claims 1-8, characterized in that the housing (4) comprises a back cover and a middle frame; at least part of the rear cover or at least part of the middle frame is made of metal materials, and the heat dissipation film (3) is attached to the metal part of the shell (4).
11. The heat dissipation method of the electronic equipment is characterized in that the electronic equipment comprises a battery, a heat storage film, a heat dissipation film and a shell; the battery, the heat storage film and the heat dissipation film are located inside the shell, the battery is attached to a first side of the heat storage film, the heat dissipation film is attached to a second side of the heat storage film, the first side is opposite to or adjacent to the second side, at least part of the heat dissipation film is attached to the shell, and the method comprises the following steps:
the heat storage film absorbs and stores heat emitted by the battery and transfers at least part of the stored heat to the heat dissipation film;
the heat dissipation film at least partially transfers the heat received by the heat dissipation film to the housing;
the housing dissipates heat from the interior to the exterior of the electronic device.
12. The method of claim 11, wherein the heat storage film is attached to a high heat generation region of the battery, the high heat generation region is a region where the heat generation power of the battery is greater than a preset threshold value during charging and discharging, the high heat generation region of the battery comprises a positive tab and a negative tab, the positive tab and the negative tab are both attached to a first side of the heat storage film, and the heat storage film absorbs the heat, and the method comprises:
the heat storage film absorbs the heat emitted by the positive electrode tab and the negative electrode tab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910994149.9A CN112687975A (en) | 2019-10-18 | 2019-10-18 | Electronic equipment and heat dissipation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910994149.9A CN112687975A (en) | 2019-10-18 | 2019-10-18 | Electronic equipment and heat dissipation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112687975A true CN112687975A (en) | 2021-04-20 |
Family
ID=75444986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910994149.9A Pending CN112687975A (en) | 2019-10-18 | 2019-10-18 | Electronic equipment and heat dissipation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112687975A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113197337A (en) * | 2021-04-28 | 2021-08-03 | 河南中烟工业有限责任公司 | Heating cigarette cooling section containing layered perovskite and preparation method thereof |
| CN115605009A (en) * | 2022-12-14 | 2023-01-13 | 荣耀终端有限公司（Cn） | Middle frame, electronic equipment and preparation method of middle frame |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202454663U (en) * | 2012-03-01 | 2012-09-26 | 微宏动力***（湖州）有限公司 | Current collector and battery pack adopting same |
| JP2014086281A (en) * | 2012-10-24 | 2014-05-12 | Auto Network Gijutsu Kenkyusho:Kk | Power storage module |
| CN203839482U (en) * | 2014-03-26 | 2014-09-17 | 北汽福田汽车股份有限公司 | Battery module and battery pack and vehicle provided with battery module |
| CN104617350A (en) * | 2015-01-04 | 2015-05-13 | 华中科技大学 | Power battery cooling system based on core-cladding-structure composite phase-change heat storage layer |
| CN105813438A (en) * | 2016-04-29 | 2016-07-27 | 广东欧珀移动通信有限公司 | Mobile terminal, heat absorbing method for mobile terminal, and manufacturing method for heat-absorbing and heat-storing material |
| CN205828595U (en) * | 2016-06-20 | 2016-12-21 | 万向A一二三***有限公司 | A kind of lithium ion battery with radiator structure |
| CN107343375A (en) * | 2016-04-29 | 2017-11-10 | 广东欧珀移动通信有限公司 | A kind of rear shell and mobile terminal |
| CN108990365A (en) * | 2017-06-05 | 2018-12-11 | 北京小米移动软件有限公司 | Radiator structure, shell and electronic equipment |
| CN209418722U (en) * | 2018-12-17 | 2019-09-20 | 赣州市创翔电源有限公司 | A kind of cleaning high-energy power battery |
| CN209434258U (en) * | 2019-03-13 | 2019-09-24 | 宁德新能源科技有限公司 | Battery structure |
-
2019
- 2019-10-18 CN CN201910994149.9A patent/CN112687975A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202454663U (en) * | 2012-03-01 | 2012-09-26 | 微宏动力***（湖州）有限公司 | Current collector and battery pack adopting same |
| JP2014086281A (en) * | 2012-10-24 | 2014-05-12 | Auto Network Gijutsu Kenkyusho:Kk | Power storage module |
| CN203839482U (en) * | 2014-03-26 | 2014-09-17 | 北汽福田汽车股份有限公司 | Battery module and battery pack and vehicle provided with battery module |
| CN104617350A (en) * | 2015-01-04 | 2015-05-13 | 华中科技大学 | Power battery cooling system based on core-cladding-structure composite phase-change heat storage layer |
| CN105813438A (en) * | 2016-04-29 | 2016-07-27 | 广东欧珀移动通信有限公司 | Mobile terminal, heat absorbing method for mobile terminal, and manufacturing method for heat-absorbing and heat-storing material |
| CN107343375A (en) * | 2016-04-29 | 2017-11-10 | 广东欧珀移动通信有限公司 | A kind of rear shell and mobile terminal |
| CN205828595U (en) * | 2016-06-20 | 2016-12-21 | 万向A一二三***有限公司 | A kind of lithium ion battery with radiator structure |
| CN108990365A (en) * | 2017-06-05 | 2018-12-11 | 北京小米移动软件有限公司 | Radiator structure, shell and electronic equipment |
| CN209418722U (en) * | 2018-12-17 | 2019-09-20 | 赣州市创翔电源有限公司 | A kind of cleaning high-energy power battery |
| CN209434258U (en) * | 2019-03-13 | 2019-09-24 | 宁德新能源科技有限公司 | Battery structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113197337A (en) * | 2021-04-28 | 2021-08-03 | 河南中烟工业有限责任公司 | Heating cigarette cooling section containing layered perovskite and preparation method thereof |
| CN115605009A (en) * | 2022-12-14 | 2023-01-13 | 荣耀终端有限公司（Cn） | Middle frame, electronic equipment and preparation method of middle frame |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8785026B2 (en) | Protection structure forthermal dissipation and preventing thermal runaway diffusion in battery system | |
| JP2019503042A (en) | Battery passive thermal management system | |
| JP2012018915A (en) | Battery module | |
| KR20130064704A (en) | Radiant heat plate for battery cell | |
| JP2017123212A (en) | Battery pack and electronic equipment | |
| CN112687975A (en) | Electronic equipment and heat dissipation method | |
| CN210897549U (en) | Heat dissipation film for lithium battery and lithium battery | |
| CN210430029U (en) | Plate-type heating and cooling heat conduction device and temperature-controllable lithium battery pack adopting same | |
| CN112350011A (en) | Battery module | |
| CN213988982U (en) | Heat dissipation laminate polymer battery group | |
| TWI669843B (en) | Power generating system having rechargeable battery | |
| CN212851276U (en) | Charger housing, charger and electronic device set | |
| CN109860951A (en) | A kind of core strueture of the electric storage device of high efficiency and heat radiation | |
| CN105870538A (en) | Electric automobile battery pack heat management structure | |
| CN210926233U (en) | Battery module and battery pack | |
| CN217606907U (en) | Battery module | |
| JP2010073606A (en) | Portable electronic equipment | |
| CN110739507A (en) | Heat dissipation film for lithium battery and lithium battery | |
| CN112397805A (en) | Battery pack with heat dissipation function | |
| WO2015186333A1 (en) | Battery unit | |
| CN109473600A (en) | A kind of insulation battery case and battery system | |
| US20140030575A1 (en) | Thermal Reservoir Using Phase-Change Material For Portable Applications | |
| CN209016230U (en) | Battery with heat sinking function | |
| JP2007299660A (en) | Electrical power storage device and its temperature control method | |
| CN210630120U (en) | Heat conduction structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210420 |
|
| RJ01 | Rejection of invention patent application after publication |