CN113207266B - Liquid heating device and equipment - Google Patents

Liquid heating device and equipment Download PDF

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Publication number
CN113207266B
CN113207266B CN202110479620.8A CN202110479620A CN113207266B CN 113207266 B CN113207266 B CN 113207266B CN 202110479620 A CN202110479620 A CN 202110479620A CN 113207266 B CN113207266 B CN 113207266B
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China
Prior art keywords
liquid
shell
heat exchange
hole
pipe
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CN202110479620.8A
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Chinese (zh)
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CN113207266A (en
Inventor
武文杰
李华
陈子昂
张宝鑫
张灯
王林
胡德胜
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Anhui Jianghuai Automobile Group Corp
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Anhui Jianghuai Automobile Group Corp
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Priority to CN202110479620.8A priority Critical patent/CN113207266B/en
Publication of CN113207266A publication Critical patent/CN113207266A/en
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20845—Modifications to facilitate cooling, ventilating, or heating for automotive electronic casings
    • H05K7/20872—Liquid coolant without phase change
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
    • H05K7/20763—Liquid cooling without phase change
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
    • H05K7/208—Liquid cooling with phase change
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20845—Modifications to facilitate cooling, ventilating, or heating for automotive electronic casings
    • H05K7/20881—Liquid coolant with phase change
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/20927—Liquid coolant without phase change
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/20936—Liquid coolant with phase change
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Abstract

The invention discloses a liquid heating device and equipment, wherein the liquid heating device comprises a shell, a liquid heat exchange pipeline and an electric heating device, and the shell is provided with a first through hole and a second through hole; the liquid heat exchange pipeline comprises a liquid inlet pipe arranged in the first through hole, a liquid outlet pipe arranged in the second through hole and a heat exchange pipe arranged in the shell, wherein two ends of the heat exchange pipe are correspondingly connected with the liquid inlet pipe and the liquid outlet pipe; the electric heating device is arranged in the shell and is in heat conduction connection with the heat exchange tube so as to heat liquid in the heat exchange tube, the uniform temperature heating effect is good, the temperature difference can be effectively controlled, and the shell is sealed for internal parts so as to protect the internal parts.

Description

Liquid heating device and equipment
Technical Field
The invention relates to the technical field of heaters, in particular to a liquid heating device and equipment.
Background
At present, electronic devices in a plurality of devices are influenced by ambient temperature under the power-on working condition, the initial working temperature is possibly lower, and the parts cannot reach the optimal working state, so that the working performance is influenced. For example, electric vehicles are gradually a focus of attention of manufacturers and consumers of various large vehicles by virtue of their energy-saving and environmental-friendly advantages, and power batteries, as an important power source and a core component of electric vehicles, are a key link that restricts the development of new energy vehicles and determines their performances. Besides the materials, the performances of the battery are closely related to the service conditions of the battery, wherein the temperature directly affects the electrochemical reaction inside the battery, and the capacity, the charge and discharge efficiency and the service life of the power battery are changed according to different temperatures.
Disclosure of Invention
The invention mainly aims to provide a liquid heating device and equipment, aiming at solving the problem of influence of low temperature on the working performance of an electronic device at present.
To achieve the above object, the present invention provides a liquid heating apparatus, comprising:
the shell is provided with a first through hole and a second through hole;
the liquid heat exchange pipeline comprises a liquid inlet pipe arranged in the first through hole, a liquid outlet pipe arranged in the second through hole and a heat exchange pipe arranged in the shell, wherein two ends of the heat exchange pipe are correspondingly connected with the liquid inlet pipe and the liquid outlet pipe; and (c) a second step of,
and the electric heating device is arranged in the shell and is in heat conduction connection with the heat exchange tube so as to heat the liquid in the heat exchange tube.
Optionally, the number of the heat exchange tubes is multiple, and the multiple heat exchange tubes are arranged side by side at intervals;
the electric heating device comprises a plurality of heating cores, and the heating cores are correspondingly arranged between every two adjacent heat exchange tubes.
Optionally, the heat exchange tube is made of an aluminum alloy.
Optionally, a first temperature sensor is arranged corresponding to the liquid outlet pipe, and the first temperature sensor is used for detecting the temperature of the liquid outlet pipe.
Optionally, the housing comprises:
the end face of the opening end of the first shell is provided with a plurality of first mounting holes;
the second shell is arranged by covering the open end of the first shell, a plurality of second mounting holes are formed in the second shell corresponding to the first mounting holes, and each second mounting hole is fixedly connected with the corresponding first mounting hole through a bolt; and (c) a second step of,
and a plurality of grooves which are axially communicated along the first mounting hole are arranged on the sealing gasket corresponding to the first mounting hole between the first shell and the second shell.
Optionally, the housing is provided with a vent valve.
Optionally, a quick connector is mounted at a free end of the liquid inlet pipe and/or the liquid outlet pipe, and the quick connector is used for connecting an external pipeline in an inserting manner.
Optionally, two sealing rings are correspondingly arranged at the joint of the liquid inlet pipe and/or the liquid outlet pipe and the corresponding quick-connection plug.
The invention also proposes an apparatus comprising a liquid heating device as described above, said liquid heating device comprising:
the shell is provided with a first through hole and a second through hole;
the liquid heat exchange pipeline comprises a liquid inlet pipe arranged in the first through hole, a liquid outlet pipe arranged in the second through hole and a heat exchange pipe arranged in the shell, wherein two ends of the heat exchange pipe are correspondingly connected with the liquid inlet pipe and the liquid outlet pipe; and (c) a second step of,
and the electric heating device is arranged in the shell and is in heat conduction connection with the heat exchange tube so as to heat the liquid in the heat exchange tube.
Optionally, the device is an automobile, a server, or an air conditioner.
In the technical scheme of the invention, liquid enters the heat exchange tube from the liquid inlet tube, and the liquid in the heat exchange tube is gradually heated and discharged from the liquid outlet tube during the heating of the electric heating device, so that the temperature of electronic devices in equipment is increased, the heat conduction efficiency is high, and the uniform temperature heating effect is good. When reaching appointed suitable temperature, stop the intensification, at this moment, liquid heating device can also regard as liquid cooling device, right the electron device cools down, makes electron device is in the temperature range of best operating condition, and the difference in temperature can effective control, improves electron device's life and work efficiency, the casing is sealed to inside spare part is protected.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a liquid heating apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the upper housing of FIG. 1;
FIG. 3 is a schematic structural view of the lower housing of FIG. 1;
FIG. 4 is a schematic view of the seal gasket of FIG. 1;
FIG. 5 is a schematic diagram of the liquid heat-exchange line and the electric heater of FIG. 1;
FIG. 6 is a side view of the liquid heat exchange circuit of FIG. 5;
fig. 7 is a schematic structural diagram of the quick connector in fig. 1.
The reference numbers indicate:
Figure BDA0003047562410000031
Figure BDA0003047562410000041
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indication is referred to in the embodiment of the present invention, the directional indication is only used for explaining a relative positional relationship, a motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
At present, under the power-on working condition, electronic devices in a plurality of devices are influenced by the ambient temperature, the initial working temperature may be low, and the components cannot reach the optimal working state, so that the working performance is influenced. For example, a power battery in an electric automobile is a key link for restricting the development of new energy automobiles and determining the performance of the new energy automobiles as an important power source and a core component of the electric automobile. Besides the materials, the performances of the battery are closely related to the service conditions of the battery, wherein the temperature directly affects the electrochemical reaction inside the battery, and the capacity, the charge and discharge efficiency and the service life of the power battery are changed according to different temperatures. .
In view of this, the present invention provides a liquid heating apparatus and a device thereof, which solve the problem of the influence of the low temperature on the working performance of the electronic device. Fig. 1 to 7 show an embodiment of a liquid heating apparatus according to the present invention.
Referring to fig. 1 to 3 and 5, the liquid heating apparatus 100 includes a housing 1, a liquid heat exchange pipeline 2 and an electric heating apparatus 3, wherein the housing 1 is provided with a first through hole 13 and a second through hole 14; the liquid heat exchange pipeline 2 comprises a liquid inlet pipe 21 arranged in the first through hole 13, a liquid outlet pipe 22 arranged in the second through hole 14, and a heat exchange pipe 23 arranged in the shell 1, wherein two ends of the heat exchange pipe are correspondingly connected with the liquid inlet pipe 21 and the liquid outlet pipe 22; the electric heating device 3 is arranged in the shell 1 and is in heat conduction with the heat exchange tube 23 so as to heat the liquid in the heat exchange tube 23.
In the technical scheme of the invention, liquid enters the heat exchange tube 23 from the liquid inlet tube 21, and in the heating process of the electric heating device 3, the liquid in the heat exchange tube 23 is gradually heated and discharged from the liquid outlet tube 22, so that the temperature of electronic devices in equipment is increased, the heat conduction efficiency is high, and the uniform temperature heating effect is good. When reaching appointed suitable temperature, stop rising temperature, at this moment, liquid heating device 100 can also be as liquid cooling device, right the electron device cools down, makes the electron device is in the temperature range of best operating condition, and the difference in temperature can effective control, improves electron device's life and work efficiency, casing 1 is sealed to inside spare part is protected.
In the present invention, the liquid is not limited, and the liquid capable of heat exchange to heat and cool the electronic device is within the protection scope of the present invention. In an embodiment of the present invention, the liquid is water, which is low in cost.
Specifically, please refer to fig. 5, liquid enters the heat exchange tubes 23 from the liquid inlet tube 21, and is discharged from the liquid outlet tube 22, the heat exchange tubes 23 are provided in plurality, the heat exchange tubes 23 are arranged side by side at intervals to distribute the liquid, the electric heating device 3 includes a plurality of heating cores 31, the plurality of heating cores 31 are correspondingly arranged between two adjacent heat exchange tubes 23 to heat the liquid in each heat exchange tube 23, the liquid is heated uniformly, the temperature rising effect is good, and the heating efficiency is high.
Further, the heat exchange tube 23 is made of an aluminum alloy material with a good heat conduction effect, so that the heat conduction efficiency of the heat exchange tube 23 is improved, the heating effect is further improved, and the heating efficiency is improved.
It should be noted that the heating manner of the heating core 31 is not limited, and it is within the protection scope of the present invention as long as it can be thermally conducted with the heat exchange tube 23 to perform heat exchange on the liquid in the heat exchange tube 23, and in an embodiment of the present invention, the heating core 31 is a PTC heating plate.
In order to facilitate control electric heater unit 3 intensifies, corresponding drain pipe 22 is equipped with first temperature sensor 32, first temperature sensor 32 is used for detecting the temperature of drain pipe 22 to transmit temperature data to external controller, so that the regulation the liquid temperature that drain pipe 22 flows out, simultaneously, if temperature data is unusual, still can pass through external controller sends out the warning, so that remind personnel's maintenance, and, no controller in the liquid heater unit still can further reduce casing inner space, reduce cost.
Referring to fig. 2 to 4, in the present invention, the housing 1 includes a first housing 11, a second housing 12, and a sealing gasket 15 disposed between the first housing 11 and the second housing 12, wherein an opening is disposed at one end of the first housing 11, and a plurality of first mounting holes 111 are disposed on an end surface of the opening end of the first housing 11; the second housing 12 is arranged to cover the open end of the first housing 11, the second housing 12 is provided with a plurality of second mounting holes 121 corresponding to the first mounting holes 111, and each second mounting hole 121 is fixedly connected to the corresponding first mounting hole 111 through a bolt 17; the sealing gasket 15 is arranged between the first shell 11 and the second shell 12, so that the sealing performance of the shell 1 is improved, a plurality of grooves 151 which are axially communicated along the first mounting hole 111 are formed in the sealing gasket 15 corresponding to the first mounting hole 111, and interference is avoided when the bolt 17 is fixedly connected. The sealing gaskets 15 are arranged inside the first mounting hole 111 and the second mounting hole 121, so that the sealing effectiveness of the shell 1 is ensured. Of course, the sealing washer 15 may also be provided with a plurality of through holes that axially pass through the first mounting hole 111, and the bolts 17 pass through the through holes to ensure the effectiveness of the sealing of the housing 1.
Referring to fig. 1 and 2, in order to avoid the influence of the difference between the internal and external pressures of the housing 1 on the components inside the housing 1, the housing 1 is provided with a vent valve 16, so that the gas exchange between the inside of the housing 1 and the outside can be performed under the condition of ensuring the sealing performance, thereby avoiding the influence on the components inside the housing 1 caused by the overhigh internal pressure inside the housing 1 when the electric heating device 3 is heated,
in order to facilitate production assembly and disassembly, in the invention, the free end of the liquid inlet pipe 21 is provided with the quick-plugging connector 4, and the quick-plugging connector 4 is used for plugging an external pipeline.
In order to facilitate production assembly and disassembly, in the invention, the free end of the liquid outlet pipe 22 is provided with the quick-plug connector 4, and the quick-plug connector 4 is used for plugging an external pipeline.
It should be emphasized that the above two technical features can be alternatively or simultaneously set, and in this embodiment, the setting effect is better (please refer to fig. 1 and 7) so as to connect the external pipeline to the liquid inlet pipe 21 and the liquid outlet pipe 22 respectively, so that the external pipeline is convenient to disassemble and assemble, the production and assembly processes are simplified, the maintenance is convenient, and the efficiency is improved.
In order to improve the sealing effect, in the invention, two sealing rings 41 are correspondingly arranged at the joint of the liquid inlet pipe 21 and the corresponding quick connector 4, so as to avoid liquid leakage.
In order to improve the sealing effect, in the invention, two sealing rings 41 are correspondingly arranged at the joint of the liquid inlet pipe 21 and the corresponding quick-connection plug 4, so as to avoid liquid leakage.
It should be emphasized that the two above technical features can be alternatively or simultaneously arranged, and in this embodiment, the simultaneous arrangement is more effective (refer to fig. 6) to prevent liquid leakage at the connection between the liquid inlet pipe 21 and the liquid outlet pipe 22 and the corresponding quick-connect connector 4.
The present invention further provides an apparatus, including the above liquid heating apparatus 100, and the vehicle includes all the technical features of the above liquid heating apparatus 100, so that the technical effects brought by all the technical features are also provided, and are not described herein again.
In the present invention, the form of the equipment is not limited, the equipment may be an automobile, a server, or an air conditioner, and all that is within the protection scope of the present invention is that the equipment can heat and cool the electronic devices in the equipment, and the liquid heating apparatus 100 is disposed in the equipment to raise the working environment temperature of the electronic devices in the equipment, so as to raise the working efficiency and improve the working performance.
In particular, the device is a car, in which a master controller is provided to electrically connect with the inside of the liquid heating apparatus 100 and the first temperature sensor 32, so as to avoid the installation of the controller in the casing 1, so as to reduce the size of the casing 1 and reduce the production cost.
In order to detect the temperature of a power battery in the vehicle, a second temperature sensor is arranged at a position corresponding to the power battery, so that the work of the electric heating device 3 is controlled according to temperature data detected by the second temperature sensor, in one embodiment of the invention, the optimum working temperature range of the power battery is 10-50 ℃, the optimum local temperature difference of the power battery is within 5 ℃, when the vehicle is started, the temperature detected by the second temperature sensor is less than 10 ℃, the temperature of the electric heating device 3 is controlled to be increased by the controller, and when the temperature of the liquid outlet pipe 22 reaches 15 ℃, the temperature is stopped to be increased.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (5)

1. A liquid heating apparatus, comprising:
the shell is provided with a first through hole and a second through hole;
the liquid heat exchange pipeline comprises a liquid inlet pipe arranged in the first through hole, a liquid outlet pipe arranged in the second through hole and a heat exchange pipe arranged in the shell, wherein two ends of the heat exchange pipe are correspondingly connected with the liquid inlet pipe and the liquid outlet pipe; and the number of the first and second groups,
the electric heating device is arranged in the shell and is in heat conduction connection with the heat exchange tubes so as to heat liquid in the heat exchange tubes, the electric heating device comprises a plurality of heating cores, and the plurality of heating cores are correspondingly arranged between two adjacent heat exchange tubes;
the shell is provided with a vent valve;
wherein the housing includes:
the end face of the opening end of the first shell is provided with a plurality of first mounting holes;
the second shell is arranged by covering the open end of the first shell, a plurality of second mounting holes are formed in the second shell corresponding to the first mounting holes, and each second mounting hole is fixedly connected with the corresponding first mounting hole through a bolt; and the number of the first and second groups,
and a plurality of grooves which are axially communicated along the first mounting hole are arranged on the sealing gasket corresponding to the first mounting hole between the first shell and the second shell.
2. A liquid heating apparatus as claimed in claim 1, wherein said heat exchange tube is of aluminium alloy.
3. The liquid heating apparatus as claimed in claim 1, wherein a quick connector is mounted at a free end of the liquid inlet pipe and/or the liquid outlet pipe, the quick connector being adapted to connect an external pipe.
4. The liquid heating apparatus as claimed in claim 3, wherein two sealing rings are disposed at the connection position of the liquid inlet pipe and/or the liquid outlet pipe and the corresponding quick connector.
5. An electric vehicle comprising a liquid heating apparatus as claimed in any one of claims 1 to 4.
CN202110479620.8A 2021-04-29 2021-04-29 Liquid heating device and equipment Active CN113207266B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110479620.8A CN113207266B (en) 2021-04-29 2021-04-29 Liquid heating device and equipment

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Application Number Priority Date Filing Date Title
CN202110479620.8A CN113207266B (en) 2021-04-29 2021-04-29 Liquid heating device and equipment

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Publication Number Publication Date
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CN113207266B true CN113207266B (en) 2022-08-30

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205900745U (en) * 2016-08-17 2017-01-18 江阴市辉龙电热电器有限公司 Liquid heater for new energy automobile power battery
CN106876825A (en) * 2017-04-12 2017-06-20 华霆（合肥）动力技术有限公司 Heat management device and supply unit
CN206861854U (en) * 2017-05-11 2018-01-09 深圳市赛尔盈电子有限公司 Ptc liquid heater
CN209929362U (en) * 2019-04-22 2020-01-10 天津北洋云创新能源技术开发有限公司 Integrated water-cooling power battery shell
CN210274557U (en) * 2019-06-04 2020-04-07 浙江银轮机械股份有限公司 PTC electric heater and heat exchange structure thereof
CN211822698U (en) * 2020-03-06 2020-10-30 河北凯途汽车零部件科技有限公司 Controller heat dissipation system of heating device

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