CN216145687U - Battery preheating device and electric equipment - Google Patents
Battery preheating device and electric equipment Download PDFInfo
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- CN216145687U CN216145687U CN202122053228.5U CN202122053228U CN216145687U CN 216145687 U CN216145687 U CN 216145687U CN 202122053228 U CN202122053228 U CN 202122053228U CN 216145687 U CN216145687 U CN 216145687U
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- 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
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Abstract
The application discloses battery preheating device and electrical equipment. The battery preheating device includes: the first accommodating bin is provided with a first accommodating cavity for accommodating the battery; the second accommodating chamber is provided with a second accommodating cavity for accommodating water or water vapor, and the first accommodating chamber is arranged in the second accommodating cavity and isolated from the second accommodating cavity; the first pipeline is sequentially penetrated and hermetically connected to the adjacent side walls of the second accommodating bin and the first accommodating bin and extends into the first accommodating cavity, and the first pipeline is used for penetrating and routing; the second pipe provides an inlet passage for water or water vapor; the third pipe provides a discharge passage of water or water vapor; and the heating thick film is arranged on the outer surface of the second accommodating chamber, is used for heating and is in heat conduction connection with the second accommodating chamber so as to heat water or water vapor accommodated in the second accommodating chamber. This application is favorable to improving the efficiency of preheating the battery.
Description
Technical Field
The application relates to the field of thick film heating, and further relates to a battery preheating device and electric equipment.
Background
The performance of the battery is largely affected by the operating environment, and particularly under low temperature conditions, the charging time of the battery increases and the charge and discharge performance of the battery under low temperature conditions decreases. Therefore, how to preheat the battery with high efficiency is a trend in the industry.
SUMMERY OF THE UTILITY MODEL
To the above technical problem, an embodiment of the present application provides a battery preheating device and an electric device, which are beneficial to improving efficiency of preheating a battery.
In a first aspect, an embodiment of the present application provides a battery preheating device, including: the first accommodating bin, the second accommodating bin, the first pipeline, the second pipeline, the third channel and the heating thick film. The first accommodating bin is provided with a first accommodating cavity for accommodating the battery; the second accommodating chamber is provided with a second accommodating cavity for accommodating water or water vapor, and the first accommodating chamber is arranged in the second accommodating cavity and isolated from the second accommodating cavity; the first pipeline is sequentially arranged in a penetrating manner and is hermetically connected with the adjacent side walls of the second accommodating bin and the first accommodating bin and extends into the first accommodating cavity, and the first pipeline allows the wiring of the electric connection battery to penetrate through the first pipeline and extend from the first accommodating cavity to the outside of the second accommodating bin; the second pipeline penetrates through and is hermetically connected with the side wall of the second accommodating chamber, and the second pipeline is used for providing an inlet passage of water or water vapor and is communicated with the second accommodating chamber; the third pipeline penetrates through and is hermetically connected with the side wall of the second accommodating chamber, and the third pipeline is used for providing a discharge passage of water or water vapor and is communicated with the second accommodating chamber; and the heating thick film is arranged on the outer surface of the second accommodating chamber, is used for heating and is in heat conduction connection with the second accommodating chamber so as to heat water or water vapor accommodated in the second accommodating chamber.
Optionally, the heating thick film is disposed on a side wall of the second housing bin to which the second duct is connected.
Optionally, the battery preheating device further includes a core column disposed inside the second pipe, a surface of the core column is provided with an outer spiral groove, and the outer spiral groove and an inner surface of the second pipe form a spiral channel.
Optionally, the pitch of the outer spiral grooves decreases gradually in the direction of circulation of water or water vapor within the spiral channel.
Optionally, a sealing ring is arranged at a joint of the first pipeline and adjacent side walls of the second accommodating bin and the first accommodating bin, and the sealing ring seals the joint of the first pipeline and the adjacent side walls.
Optionally, heating the thick film comprises: the insulating layer is arranged on the outer surface of the second accommodating bin; a heating coil disposed on the insulating layer; and an encapsulation layer disposed on the insulating layer and covering the heating coil.
Optionally, heating the thick film comprises: the heating coil is arranged on the outer surface of the second accommodating bin; and the packaging layer is arranged on the outer surface of the second accommodating bin and covers the heating coil.
Optionally, the battery preheating device further comprises a temperature controller connected to the passage of the heating coil for disconnecting the passage of the heating coil to stop heating when the monitored temperature reaches the predetermined temperature.
In a second aspect, an embodiment of the present application provides an electric device, which includes a battery, a wire, and any one of the foregoing battery preheating devices, wherein the battery is accommodated in the first accommodating cavity, the wire is electrically connected to the battery, penetrates through the first pipeline, and extends from the first accommodating cavity to the outside of the second accommodating cavity.
Alternatively, the battery includes a single battery or a battery pack formed of a plurality of batteries.
As described above, in the battery preheating device and the electric device according to the embodiment of the present application, the battery is accommodated in the first accommodating chamber of the first accommodating chamber, the second accommodating chamber is provided outside the first accommodating chamber, the heating thick film is provided on the outer surface of the second accommodating chamber, and the water in the second accommodating chamber of the second accommodating chamber is heated by the heating thick film, so that hot water or water vapor is generated to preheat the battery in the first accommodating chamber, and the thickness of the heating thick film is thin, so that the battery can be better matched in position and shape with the second accommodating chamber, and the heating efficiency is high, thereby being beneficial to improving the efficiency of preheating the battery; in addition, the heating thick film has small volume and can be attached to the outer surface of the second accommodating bin, so that the miniaturization design of the battery preheating device is facilitated, the energy consumption for heating the thick film is low, and the power and the energy consumption required for preheating the battery can be reduced;
in addition, water or water vapor can enter the area between the first accommodating chamber and the second accommodating chamber through the second pipeline, and is discharged from the third pipeline after the thick film is heated, so that the water or the water vapor circulates in the second accommodating chamber and conducts heat to the battery, and the battery preheating is facilitated timely.
Drawings
Fig. 1 is a partial schematic structural diagram of an embodiment of a battery preheating device according to the present application;
FIG. 2 is a schematic structural diagram of one embodiment of the present disclosure for heating a thick film;
FIG. 3 is a schematic cross-sectional view of an embodiment of a second conduit of the present application;
fig. 4 is a schematic structural diagram of an embodiment of a stem of the present application.
Detailed Description
The heating thick film is formed by printing a paste-like conductive paste, for example, a paste-like paste obtained by mixing a fine powder of a superconducting ceramic material with an organic binder, on a substrate in the form of a circuit wiring or a pattern, and then sintering the printed circuit board after a heat treatment step. This application is applied to battery preheating device such as vehicle with the heating thick film, and the heating thick film sets up in the surface of the storage bin of acceping the battery, utilizes the heating thick film heating to accept storehouse and water to this heats the battery in the storage bin, improves the efficiency of preheating to the battery.
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described below in detail with reference to specific embodiments and accompanying drawings. It is to be understood that the embodiments described below are only some embodiments of the present application, and not all embodiments. In the following embodiments and technical features thereof, all of which are described below may be combined with each other without conflict, and also belong to the technical solutions of the present application.
It should be understood that in the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing technical solutions and simplifying the description of the respective embodiments of the present application, and do not indicate or imply that a device or an element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application.
Fig. 1 is a partial schematic structural diagram of an embodiment of a battery preheating device according to the present application, and fig. 2 is a schematic structural diagram of an embodiment of a heating thick film according to the present application. Referring to fig. 1 and 2 together, the battery preheating device 10 includes: a first housing chamber 11, a second housing chamber 12, a first pipe 13, a second pipe 151, a third pipe 152, and a heating thick film 14.
The first housing compartment 11 is provided with a first housing chamber for housing a battery (not shown). The battery is a single battery or a battery pack formed by a plurality of batteries.
The second accommodating chamber 12 is provided with a second accommodating chamber for accommodating water or water vapor, the first accommodating chamber 11 is arranged in the second accommodating chamber, and the first accommodating chamber and the second accommodating chamber are isolated.
The first pipe 13 is sequentially penetrated through and hermetically connected to the adjacent side walls of the second accommodating chamber 12 and the first accommodating chamber 11, and extends to the first accommodating chamber, and the first pipe 13 allows the wire electrically connected with the battery to penetrate through the first accommodating chamber and extend from the first accommodating chamber to the outside of the second accommodating chamber 12.
The heating thick film 14 is disposed on the outer surface of the second accommodating chamber 12, and the heating thick film 14 is used for heating and is in heat conduction connection with the second accommodating chamber 12 to heat the water or the water vapor accommodated in the second accommodating chamber.
The battery is accommodated in a first accommodating cavity of a first accommodating chamber 11, a second accommodating chamber 12 is arranged outside the first accommodating chamber 11, a heating thick film 14 is arranged on the outer surface of the second accommodating chamber 12, and water in the second accommodating cavity of the second accommodating chamber 12 is heated by the heating thick film 14 to generate hot water or water vapor so as to preheat the battery in the first accommodating cavity, the heating thick film 14 is thinner, can be better matched with the second accommodating chamber 12 in position and shape, and has higher heating efficiency, so that the efficiency of preheating the battery is improved; in addition, the heating thick film 14 has small volume and can be attached to the outer surface of the second accommodating bin 12, which is beneficial to the miniaturization design of the battery preheating device 10, and the energy consumption for heating the thick film 14 is low, so that the power and the energy consumption required by preheating the battery can be reduced.
It should be understood that, in order to prevent water or water vapor from entering the battery in the first receiving chamber 11 to affect the safety performance of the battery, the first receiving chamber 11 is a sealed chamber, and the first receiving chamber of the sealed chamber is communicated with the outside only through the first pipe 13, but water or water vapor exists in the second receiving chamber in the area between the first receiving chamber 11 and the second receiving chamber 12, and the area is a sealed space completely isolated from the outside, so that water or water vapor cannot enter the first receiving chamber.
In some embodiments, the first pipe 13 is connected with the first side wall 121 of the second housing bin 12 and the first side wall 111 of the first housing bin 11, the first side wall 121 and the first side wall 111 are adjacent, and the connection may be provided with a sealing ring (not shown), which may be disposed around the first pipe 13, for example, a rubber ring, where the sealing ring seals the connection of the first pipe 13 and the first side wall 121 and the first pipe 13 and the first side wall 111.
With continued reference to fig. 1, water or steam may be circulated to preheat the battery, the water or steam may be introduced into the second receiving chamber of the second receiving chamber 12 from the outside, and the heat is conducted to the battery and then discharged to the outside of the second accommodating chamber 12, specifically, the battery preheating device 10 may further include a second pipe 151 and a third pipe 152, the second pipe 151 is disposed through and hermetically connected to a second side wall (for example, a top wall shown in fig. 1) 122 of the second accommodating chamber 12, the second pipe 151 is used for providing an inlet path for water or water vapor to enter the second accommodating chamber 12 and communicating with the second accommodating chamber, the third pipe 152 is disposed through and hermetically connected to a third side wall (for example, a bottom wall shown in fig. 1) 123 of the second accommodating chamber 12, the third pipe 152 is used for providing an outlet path for water or water vapor and communicating with the second accommodating chamber, and a black bold arrow in fig. 1 indicates a flowing direction of the water or water vapor. That is, water or water vapor may enter the region between the first and second receiving chambers 11 and 12 through the second pipe 151, and after being heated by the heating thick film 14, the water or water vapor may be discharged through the third pipe 152, and the water or water vapor circulates in the second receiving chamber and transfers heat to the battery, which also facilitates the timely preheating of the battery.
In some embodiments, the heating thick film 14 may be disposed on the side wall (i.e., the top wall) 122 of the second housing bin 12 connected to the second pipe 151 for heating the just-entered water or water vapor. It should be understood that the heating thick film 14 may be disposed on other side walls or all side walls of the second housing chamber 12, which is beneficial to improve the heating efficiency.
The first duct 13, the second duct 151, and the third duct 152 may have a hollow structure, and the cross-sectional shapes of the three ducts may be the same or different, and the embodiments of the present application are not limited thereto.
Referring to fig. 3 and 4, in some embodiments, the battery preheating device 10 may further include a stem 16, the stem 16 is disposed inside the second pipe 151, the surface of the stem 16 is provided with an external spiral groove 161, and the external spiral groove 161 and the inner surface of the second pipe 151 form a spiral channel. By providing the stem 16 inside the second pipe 151, the outer spiral groove 161 of the stem 16 and the inner surface of the second pipe 151 form a spiral channel, which prolongs the length and residence time of water or steam flowing in the second pipe 151, and is beneficial to the water or steam to obtain more heat, thereby improving the heat exchange efficiency and the heating speed. Of course, in other embodiments, the stem 16 may also be disposed inside the third pipe 153, so as to prolong the length and residence time of the water or water vapor flowing in the second accommodating chamber 12, thereby facilitating to transfer more heat to the battery, and improving the battery preheating efficiency.
The stem 16 may be an integrally formed structural member, and specific implementation forms include but are not limited to: silica gel column, ceramic column or plastic column, etc. The outer surface of the stem 16 may be provided with helical projections 162, which helical projections 162 form outer helical grooves 161. In some embodiments, the distance between the outer spiral grooves 161 is gradually decreased along the circulation direction of the water or water vapor in the spiral channel, that is, the closer to the outlet end of the second pipe 151, the higher the density of the outer spiral grooves 161 is, the longer the water or water vapor circulates, the more heat is transferred to the water or water vapor per unit time, which is beneficial to increase the heating speed. The closer to the inlet end of the second pipe 151, the lower the density of the outer spiral grooves 161, which facilitates the rapid entrance of water or water vapor into the inside of the second pipe 151, increasing the entrance amount of water or water vapor.
The battery preheating device 10 may further include a fixing member 163, the fixing member 163 is disposed inside the stem 16, and opposite ends of the fixing member 163 are respectively fixed to structural members at two ends of the second pipeline 151 (for example, a first joint and a second joint respectively disposed at two ends of the second pipeline 151).
In some embodiments, the fixing member 163 may be a bolt, a nut of the bolt is disposed on a side surface of one of the first joint and the second joint facing away from the other joint and abuts against the side surface, and the screw rod penetrates through the other joint and is screwed with the nut. Alternatively, a screw having a screw thread provided on the bolt is screwed with the other of the first joint and the second joint. For example, the nut is disposed on a side surface of the second joint facing away from the first joint and abuts against the side surface.
In some embodiments, the outer spiral groove 161 is spaced from the inner surface of the second pipe 151 in the radial direction of the second pipe 151, a certain gap is left between the outer spiral groove 161 and the second pipe 151, and the second pipe 151 is not in direct thermal contact with the stem 16, so that the stem 16 and the outer spiral groove 161 thereof are prevented from being burned out when the temperature of the second pipe 151 is too high, which is beneficial to prolonging the service life of the second pipe 151.
In other embodiments, the diameter of the second tube 151 is gradually reduced in the direction of circulation of water or water vapor within the spiral channel, and the outer spiral groove 161 abuts against the inner surface of the second tube 151.
The heating thick film 14 may be disposed on the outer surface of the second pipe 151 or the third pipe 152, and is in heat conduction with the second pipe 151 or the third pipe 152, so as to facilitate the water or the water vapor to obtain more heat. The heating thick film 14 provided in the second pipe 151 will be described below as an example. The heating thick film 14 on the second pipeline 151 can be independently arranged and independently controlled, and water or water vapor is heated only through the heating thick film 14 on the second pipeline 151, or only through the heating thick film 14 on the second accommodating bin 12, so as to realize the requirement of preheating the battery at a lower temperature; when the requirement of higher temperature or faster battery preheating is satisfied, the battery preheating can be performed by using the heating thick film 14 on the second housing chamber 12 and the second duct 151 at the same time.
The second pipe 151 and the second receiving chamber 12 may be made of a material with a suitable thermal expansion coefficient, such as a metal or an alloy, and the pipe is in close thermal contact with the heating thick film 14 and the heat generating coil of the heating thick film 14 after being heated and expanded, which further facilitates the rapid heat transfer to water or water vapor.
The embodiments of the present application do not limit the structural shapes of the first housing chamber 11 and the second housing chamber 12, and may be, for example, a six-sided rectangular body as shown in fig. 1, or a structural body of any other shape. According to the different shapes of the first receiving chamber 11, the second receiving chamber 12 and the second duct 151, the heating thick film 14 may be formed on the corresponding outer surface by a suitable manner (e.g., a film attaching manner or a printing manner), a preparation process, a shape, a material, etc. of the heating thick film 14, and embodiments of the present application are not limited thereto. For example, as shown in fig. 1, the heating thick film 14 may be provided on the outer surface of one side wall of the second housing chamber 12, or may be provided on the outer surface of a plurality of or all of the side walls; the heating thick film 14 may cover the outer surface of the side wall provided entirely or partially. When the heating thick film 14 is provided on the side wall through which the pipe (e.g., the first pipe 13) is penetrated, the heating thick film 14 bypasses the pipe.
In some embodiments, referring to fig. 2, the heated thick film 14 includes an insulating layer 141, a heating coil 142, and an encapsulation layer (not shown). The insulating layer 141 is provided at least on the outer surface of the second housing chamber 12, and of course, in the case where the heating thick film 14 is also provided on the outer surface of the second duct 151, the insulating layer 141 is also provided on the outer surface of the second duct 151. The insulating layer 141 serves to electrically insulate the heating coil 142 from a corresponding element (e.g., the second housing chamber 12 of metal). The heating coil 142 is disposed on the insulating layer 141 for receiving electricity and generating heat, for example, through the conductive pad 144. The encapsulation layer is disposed on the insulation layer 141 and covers the heating coil 142, and the encapsulation layer is used to prevent the heating coil 142 from being exposed, so as to prevent the heating coil 142 from being electrically contacted with external conductive electronic components to form a short circuit.
The encapsulation layer may be directly formed by a film forming method (for example, sputtering or evaporation method) using an insulating material to cover the heating coil 142. It should be understood that the encapsulation layer can also be regarded as a thermal insulation layer, which not only covers the heating coil 142, but also has good thermal insulation performance, and is beneficial to transferring more heat generated by the heating coil 142 to water or water vapor and avoiding transferring the heat to the outside.
In other embodiments where the outer surface of the component (e.g., second housing 12) to which the heated thick film 14 is disposed is non-conductive, the heated thick film 14 may not be provided with the aforementioned insulating layer 141, but may instead include the heating coil 142 and the encapsulation layer. The heating coil 142 is disposed directly on the outer surface of the component (e.g., the second receptacle 12) for electrical connection and heat generation, for example, by a conductive pad 144. The encapsulation layer is disposed on the outer surface of the element (e.g., the second housing chamber 12) and covers the heating coil 142.
The heating thick film 14 may also be provided with conductive pads 144, with the encapsulation layer exposing the conductive pads 144 to allow electrical access to the conductive pads 144. In some embodiments, the surface of the second pipe 151 may be provided with a terminal plate, one end of which is used for power connection, and the other end of which is electrically connected to the conductive pad 144. In other embodiments, the exposed conductive pads 144 may be directly powered.
It should be understood that the two conductive pads 144 shown in fig. 2 are for exemplary illustration only, and embodiments of the present application do not limit the number of conductive pads 144. For example, heating thick film 14 may be provided with four conductive pads 144, wherein two conductive pads 144 may be used for power connection, and the other two conductive pads 144 may be connected to two pins of temperature controller 145, respectively, and selectively disconnect the path of heating coil 142 (between two conductive pads 144) according to the temperature detected by temperature controller 145, for example, disconnect the path between two conductive pads 144 when the heating temperature reaches and exceeds a preset temperature, and keep the path between two conductive pads 144 connected when the heating temperature is lower than the preset temperature, so as to stop heating.
The embodiment of the present application further provides an electric device, which includes a battery, a wire, and the battery preheating device 10 of any one of the foregoing embodiments, wherein the battery is accommodated in the first accommodating cavity, the wire is electrically connected to the battery, penetrates through the first pipeline 13, and extends from the first accommodating cavity to the outside of the second accommodating cavity 12. In this case, the electric device has the advantageous effects of the battery preheating device 10.
The embodiment of the application does not limit the concrete expression of the electric equipment, for example, in a practical scene, the electric equipment can be an electric vehicle, a standby power supply and the like. The battery preheating device 10 can preheat the battery when the electric equipment is in a cold environment, so that the charge and discharge performance of the battery is improved.
The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all equivalent structural changes made by using the contents of the specification and drawings, or any other related technical fields, are intended to be covered by the scope of the present application.
In the description of the present application, without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element, and elements, which have the same designation in different embodiments, may or may not have the same meaning as that of the other elements, and the specific meaning of that element should be determined by its interpretation in that embodiment or by its context in further embodiments.
In addition, although the terms "first, second, third, etc. are used herein to describe various information, such information should not be limited to these terms, but merely serve to distinguish the same type of information from one another. For example, the singular forms "a", "an" and "the" are intended to include the plural forms as well, with the exception of the definitions occurring only when inherently mutually exclusive with the description of the corresponding embodiments.
Claims (10)
1. A battery preheating device, characterized by comprising:
the first accommodating bin is provided with a first accommodating cavity for accommodating the battery;
the second accommodating bin is provided with a second accommodating cavity for accommodating water or water vapor, and the first accommodating bin is arranged in the second accommodating cavity and isolated from the second accommodating cavity;
the first pipeline is sequentially penetrated and hermetically connected to the adjacent side walls of the second accommodating bin and the first accommodating bin and extends into the first accommodating cavity, and the first pipeline allows a wiring which is electrically connected with the battery to penetrate through the first pipeline and extends out of the second accommodating bin from the first accommodating cavity;
the second pipeline penetrates through and is connected to the side wall of the second accommodating bin in a sealing mode, and the second pipeline is used for providing an inlet passage for water or water vapor and is communicated with the second accommodating cavity;
the third pipeline penetrates through and is connected to the side wall of the second accommodating chamber in a sealing mode, and the third pipeline is used for providing a discharge passage of water or water vapor and is communicated with the second accommodating chamber;
the heating thick film is arranged on the outer surface of the second accommodating chamber, and is used for heating and is in heat conduction connection with the second accommodating chamber so as to heat water or water vapor accommodated in the second accommodating chamber.
2. The battery preheating device according to claim 1, wherein the heating thick film is provided on a side wall of the second housing compartment to which the second duct is connected.
3. The battery preheating device according to claim 1, further comprising a core column disposed inside the second pipe, wherein a surface of the core column is provided with an outer spiral groove, and the outer spiral groove and an inner surface of the second pipe form a spiral channel.
4. The battery preheating device according to claim 3, wherein the pitch of the outer spiral grooves is gradually decreased in a direction in which water or water vapor circulates in the spiral passage.
5. The battery preheating device according to any one of claims 1 to 4, wherein a joint of the first pipe and the adjacent side walls of the second housing compartment and the first housing compartment is provided with a sealing ring, and the sealing ring seals the joint of the first pipe and the adjacent side walls.
6. The battery preheating apparatus according to claim 1, wherein the heating of the thick film comprises:
the insulating layer is arranged on the outer surface of the second accommodating bin;
a heating coil disposed on the insulating layer;
and an encapsulation layer disposed on the insulating layer and covering the heating coil.
7. The battery preheating apparatus according to claim 1, wherein the heating of the thick film comprises:
the heating coil is arranged on the outer surface of the second accommodating bin;
and the packaging layer is arranged on the outer surface of the second accommodating bin and covers the heating coil.
8. The battery preheating apparatus according to claim 6 or 7, further comprising a temperature controller connected to the passage of the heating coil for disconnecting the passage of the heating coil to stop heating when the monitored temperature reaches a predetermined temperature.
9. An electric device, comprising a battery, a wire, and the battery preheating device according to any one of claims 1 to 8, wherein the battery is accommodated in the first accommodating cavity, and the wire is electrically connected to the battery and is inserted into the first pipeline and extends from the first accommodating cavity to the outside of the second accommodating cavity.
10. The electrically powered device of claim 9, wherein the battery comprises a single battery or a battery pack formed of a plurality of batteries.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122053228.5U CN216145687U (en) | 2021-08-27 | 2021-08-27 | Battery preheating device and electric equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122053228.5U CN216145687U (en) | 2021-08-27 | 2021-08-27 | Battery preheating device and electric equipment |
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| CN216145687U true CN216145687U (en) | 2022-03-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115295918A (en) * | 2022-08-12 | 2022-11-04 | 广东宇华热能科技有限公司 | New energy vehicle thermal management system |
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2021
- 2021-08-27 CN CN202122053228.5U patent/CN216145687U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115295918A (en) * | 2022-08-12 | 2022-11-04 | 广东宇华热能科技有限公司 | New energy vehicle thermal management system |
| CN115295918B (en) * | 2022-08-12 | 2023-09-05 | 广东宇华热能科技有限公司 | New energy vehicle thermal management system |
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