CN217935983U - Prevent dry combustion method heating plate, heating system and battery module - Google Patents
Prevent dry combustion method heating plate, heating system and battery module Download PDFInfo
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- CN217935983U CN217935983U CN202221397876.0U CN202221397876U CN217935983U CN 217935983 U CN217935983 U CN 217935983U CN 202221397876 U CN202221397876 U CN 202221397876U CN 217935983 U CN217935983 U CN 217935983U
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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 utility model provides an anti-dry heating piece, a heating system and a battery module, wherein the anti-dry heating piece comprises a diaphragm main body (1), a thermistor (2), a temperature-sensing terminal (3) and a heating terminal (4), the diaphragm main body (1) comprises an insulating layer (5) and a heating circuit (6) embedded in the insulating layer; two ends of the heating circuit (6) are respectively and electrically connected with the heating terminal (4); the thermistor (2) is arranged on one outer surface of the insulating layer (5) and is electrically connected with the temperature-sensitive terminal (3). The utility model discloses a set up thermistor in the diaphragm main part, thermistor is used for real-time detection temperature information and feeds back to the master control unit, is convenient for judge and carries out the operation of the power supply of disconnection heating plate to greatly degree has avoidd the heating plate and has burnt futilely, and has reduced the potential safety hazard and the energy consumption of heating plate.
Description
Technical Field
The utility model relates to an electrical heating technology field especially relates to a prevent dry combustion method heating plate, heating system and battery module.
Background
Currently, lithium ion batteries are widely applied to power battery systems or household energy storage systems, but the charging and discharging performance of the batteries is greatly limited in a low-temperature environment. In order to improve the charge and discharge performance of the lithium ion battery in a low temperature environment, it is necessary to heat the lithium ion battery. The heating sheet is widely applied due to the advantages of less space occupation, uniform heating, high heat conduction rate, low cost and the like, and the heating mechanism is that a heating main body embedded between two layers of insulating films is electrified and heated.
However, the existing heating plate has the following technical problems, and needs to be further improved: at present, in order to pursue heating efficiency, a heating plate with high heating power is used; since the heating mechanism of the heating sheet is that the heating body embedded between the two insulating films is heated by electrifying, the temperature of the heating sheet is not limited, and a larger heating power represents a higher temperature of the heating body in the heating process. The insulating film has general temperature resistance, and is used for a long time in a working environment with the temperature of over 120 ℃ to cause a dry burning phenomenon, so that great potential safety hazards exist while a great deal of energy consumption is consumed.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide an anti-dry heating sheet, a heating system and a battery module.
To achieve the above objects and other related objects, the present invention provides a solution including the following features.
The utility model provides an anti-dry heating plate, which comprises a diaphragm main body, a thermistor, a temperature sensing terminal and a heating terminal, wherein the diaphragm main body comprises an insulating layer and a heating circuit embedded in the insulating layer; two ends of the heating circuit are electrically connected with the heating terminals respectively; the thermistor is arranged on one of the outer surfaces of the insulating layers and is electrically connected with the temperature-sensitive terminal.
Preferably, the diaphragm main part further comprises a heat-conducting adhesive layer, and the heat-conducting adhesive layer is arranged on the other outer surface of the insulating layer.
Preferably, the thermistor is disposed directly above the heating line.
Preferably, the heating terminal further comprises a wire, and both ends of the heating line are electrically connected with the heating terminal through the wire.
Preferably, the heating wire further comprises an insulating heat conducting gasket, and the insulating heat conducting gasket covers the connection part of the wire and the heating wire; and/or the insulating heat conduction gasket covers the thermistor and is fixedly connected with the insulating layer.
Preferably, the outer sleeve of the lead is provided with a silica gel sleeve.
Preferably, the temperature-sensing terminal also comprises a temperature-sensing collecting wire, and the thermistor is electrically connected with the temperature-sensing terminal through the temperature-sensing collecting wire.
Preferably, the thickness of the membrane main body is 0.3-1.2 mm.
Preferably, the power density of the diaphragm main body is 0.2-0.4W/cm 2 。
Preferably, the heating circuit comprises a plurality of heating units connected in series, and the single heating unit is bent in a continuous U shape.
The utility model also provides a prevent dry combustion method heating system, include prevent dry combustion method heating plate and control module, control module includes communication connection's information acquisition unit and main control unit, the information acquisition unit with thermistor electricity signal connection, the main control unit be used for the basis the temperature information that the information acquisition unit gathered carries out corresponding operation, corresponding operation is the disconnection prevent dry combustion method heating plate's power supply.
The utility model also provides a battery module, battery module adopts the dry combustion preventing heating plate and/or the dry combustion preventing heating system.
As above, the utility model discloses a prevent dry combustion method heating plate, heating system and battery module has following beneficial effect: through set up thermistor on the diaphragm main part, thermistor is used for real-time detection temperature information and feeds back to the main control unit, is convenient for judge and carry out the operation of the power supply of disconnection heating plate to avoid the heating plate dry combustion method to a great extent, and reduced the potential safety hazard and the energy consumption of heating plate.
Drawings
Fig. 1 is a schematic structural view of the anti-dry heating sheet of the present invention.
Fig. 2 isbase:Sub>A sectional view taken alongbase:Sub>A linebase:Sub>A-base:Sub>A in fig. 1.
Fig. 3 is a cross-sectional view taken along the line B-B in fig. 1.
Fig. 4 is a schematic view of a heating circuit.
FIG. 5 is a second schematic diagram of the heating circuit.
Description of the reference numerals
1. Diaphragm main body
2. Thermal resistor
3. Temperature-sensing terminal
4. Heating terminal
5. Insulating layer
6. Heating circuit
7. Heat-conducting adhesive layer
8. Conducting wire
9. Insulating heat conduction gasket
10. Temperature sensing acquisition line
11. Wire harness label
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
Please refer to fig. 1 to 4. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
As shown in fig. 1 to 4, the utility model provides an anti-dry heating plate, which comprises a diaphragm main body 1, a thermistor 2, a temperature sensing terminal 3 and a heating terminal 4, wherein the diaphragm main body 1 comprises an insulating layer 5 and a heating circuit 6 embedded in the insulating layer; two ends of the heating circuit 6 are electrically connected with the heating terminals 4 respectively; the thermistor 2 is arranged on one of the outer surfaces of the insulating layer 5 and is electrically connected with the temperature-sensitive terminal 3.
In the above technical scheme of this application, through set up thermistor 2 on diaphragm main part 1, thermistor 2 is used for real-time detection temperature information and feeds back to the main control unit, is convenient for judge and carry out the operation of the power supply of disconnection heating plate to avoid the heating plate to burn futilely to a great extent, and reduced the potential safety hazard and the energy consumption of heating plate.
In a specific embodiment, the thermistor 2 is fixed to one of the outer surfaces of the insulating layer 5 by means of thermocompression.
In a particular embodiment, the heating wire 6 is a metal wire, including but not limited to copper and alloys.
In a specific embodiment, the insulating layer 5 may be a polyimide layer.
In a specific embodiment, the film main body 1 further includes a heat conductive adhesive layer 7, and the heat conductive adhesive layer 7 is disposed on the other outer surface of the insulating layer 5. The heat-conducting adhesive layer 7 is used for adhering and fixing the heating sheet to the bottom surface and/or the side surface of the battery module to be heated.
In a specific embodiment as shown in fig. 2, the thermistor 2 is arranged right above the heating circuit 6, so that the accuracy of the temperature detection of the dry-heating prevention heating piece by the thermistor is improved.
In a specific embodiment as shown in fig. 2, the heating wire 6 further includes a wire 8, and both ends of the heating wire 6 are electrically connected to the heating terminal 4 through the wire 8. The lead wire 8 is fixed to both ends of the heating wire 6 by welding, but not limited thereto.
In a specific embodiment, the heat radiation device further comprises an insulating heat conduction gasket 9, the insulating heat conduction gasket 9 covers a joint of the wire 8 and the heating circuit 6, and the insulating heat conduction gasket 9 can effectively protect the joint and avoid the wire falling off in the using process.
In a specific embodiment, the thermal insulation device further comprises an insulating thermal conduction pad 9, and the insulating thermal conduction pad 9 covers the thermistor 2 and is fixedly connected with the insulating layer 5. The insulating and heat conducting gasket 9 can effectively protect the installation stability of the thermistor 2 and avoid the shedding phenomenon in the use process.
In a specific embodiment, the thermistor further comprises an insulating heat conducting gasket 9, the insulating heat conducting gasket 9 covers a joint of the lead 8 and the heating line 6, and the insulating heat conducting gasket 9 covers the thermistor 2 and is fixedly connected with the insulating layer 5.
In a specific embodiment, the insulating and heat-conducting gasket 9 is a silicone gasket.
In a specific embodiment, a silica gel sleeve is sleeved outside the lead 8, so that safety is improved.
In a specific embodiment, the thermistor further comprises a temperature sensing line 10, and the thermistor 2 is electrically connected with the temperature sensing terminal 3 through the temperature sensing line 10.
In a specific embodiment, a silica gel sleeve is sleeved outside the temperature-sensing collection wire 10, so that the safety is improved.
In a specific embodiment, the membrane body 1 has a thickness of 0.3 to 1.2mm, such as specifically 0.3 to 0.34mm,0.34 to 0.45mm,0.45 to 0.6mm,0.6 to 1.0mm,1.0 to 1.2mm.
In a specific embodiment, the power density of the diaphragm body is 0.2 to 0.4W/cm 2 Such as 0.2 to 0.25W/cm 2 ，0.25～0.3W/cm 2 ，0.3～0.35W/cm 2 ，0.35～0.4W/cm 2 . The distribution mode of the heating circuit 6 in the diaphragm main body is not limited, as long as the power density is ensured to be achieved, so that high heating efficiency and heating uniformity are ensured, and meanwhile, the temperature information detected by the thermistor in real time is more accurate.
In a specific embodiment, the heating circuit 6 comprises a plurality of heating units connected in series, and the heating unit is continuously bent in a U shape, so that the heating is more uniform due to the circuit design.
In one particular embodiment as shown in fig. 4, the heating circuit 6 comprises 4 heating units in series, a single heating unit comprising 13 consecutive U-bends.
In one particular embodiment as shown in fig. 5, the heating circuit 6 comprises 8 heating units in series, a single heating unit comprising 13 consecutive U-bends.
In a specific embodiment as shown in fig. 1, the wires 8 are sheathed with a wire harness label 11 to facilitate the differentiation between different types of connection lines.
The embodiment of the application also provides an anti-dry heating system, include anti-dry heating piece and control module, control module includes communication connection's information acquisition unit and main control unit, the information acquisition unit with 2 electric signal connections of thermistor, the main control unit be used for the basis the temperature information that the information acquisition unit gathered carries out corresponding operation, corresponding operation is the disconnection the power supply of anti-dry heating piece.
In the above technical scheme of this application, the information acquisition unit is used for gathering the temperature information that thermistor 2 detected in real time, and sends for the main control unit.
In a specific embodiment, the main control unit includes a temperature determination unit and a processing unit, which are in communication connection, and the temperature determination unit is configured to determine whether the temperature acquired by the information acquisition unit is higher than a temperature threshold; when the temperature acquired by the information acquisition unit is higher than the temperature threshold set in the temperature judgment unit, the temperature judgment unit sends a signal to the processing unit, and the processing unit receives the signal and disconnects the power supply of the anti-dry heating piece.
In a more specific embodiment, the processing unit may employ a relay.
The embodiment of the application also provides a battery module, the battery module adopts the dry-heating preventing heating plate and/or the dry-heating preventing heating system.
The utility model discloses a prevent dry combustion method heating plate and prevent dry combustion method heating system's theory of operation as follows:
when the working state of the dry-burning-preventing processing piece is in the working state, the dry-burning-preventing heating piece is attached to the bottom and/or the side face of the battery module to be heated, the heating terminal 4 is connected with an external power supply, and the temperature-sensing terminal 3 is electrically connected with the control module.
An external power supply connected to the heating terminal 4 is used to supply power to the heating wire 6 to generate heat, and then the dry-heating-preventing processed sheet, which is electrically heated, is used to heat the battery module.
And the control module electrically connected with the temperature sensing terminal 3 is used for acquiring the temperature information detected by the thermistor 2 in real time, judging whether the real-time temperature exceeds a temperature threshold value, and disconnecting the power supply of the anti-dry heating piece if the real-time temperature exceeds the temperature threshold value.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The anti-dry heating plate is characterized by comprising a diaphragm main body (1), a thermistor (2), a temperature sensing terminal (3) and a heating terminal (4), wherein the diaphragm main body (1) comprises an insulating layer (5) and a heating circuit (6) embedded in the insulating layer (5); two ends of the heating circuit (6) are respectively and electrically connected with the heating terminal (4); the thermistor (2) is arranged on one outer surface of the insulating layer (5) and is electrically connected with the temperature-sensitive terminal (3).
2. The anti-dry heating plate according to claim 1, wherein: the diaphragm main body (1) further comprises a heat-conducting adhesive layer (7), and the heat-conducting adhesive layer (7) is arranged on the other outer surface of the insulating layer (5).
3. The anti-dry heating plate according to claim 1, wherein: the thermistor (2) is arranged right above the heating circuit (6).
4. The anti-dry heating sheet according to claim 1, wherein: the heating circuit is characterized by further comprising a lead (8), wherein two ends of the heating circuit (6) are electrically connected with the heating terminal (4) through the lead (8).
5. The anti-dry heating plate according to claim 4, wherein: the heating wire is characterized by further comprising an insulating heat conduction gasket (9), wherein the insulating heat conduction gasket (9) covers the connection part of the wire (8) and the heating circuit (6); and/or the insulating heat conduction gasket (9) covers the thermistor (2) and is fixedly connected with the insulating layer (5).
6. The anti-dry heating plate according to claim 4, wherein: and a silica gel sleeve is sleeved outside the lead (8).
7. The anti-dry heating sheet according to claim 1, wherein: the temperature-sensing terminal is characterized by further comprising a temperature-sensing acquisition line (10), and the thermistor (2) is electrically connected with the temperature-sensing terminal (3) through the temperature-sensing acquisition line (10).
8. The anti-dry heating plate according to claim 1, wherein: the thickness of the membrane main body (1) is 0.3-1.2 mm;
and/or the power density of the diaphragm main body (1) is 0.2-0.4W/cm 2 ；
And/or the heating circuit (6) comprises a plurality of heating units connected in series, and a single heating unit is bent continuously in a U shape.
9. An anti-dry heating system is characterized in that: the dry-heating prevention heating plate comprises the dry-heating prevention heating plate and a control module according to any one of claims 1 to 8, wherein the control module comprises an information acquisition unit and a main control unit which are in communication connection, the information acquisition unit is in electric signal connection with the thermistor (2), the main control unit is used for executing corresponding operation according to temperature information acquired by the information acquisition unit, and the corresponding operation is to disconnect the power supply of the dry-heating prevention heating plate.
10. A battery module, its characterized in that: the battery module adopts the dry-heating preventing heating sheet of any one of claims 1 to 8 and/or the dry-heating preventing heating system of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221397876.0U CN217935983U (en) | 2022-05-31 | 2022-05-31 | Prevent dry combustion method heating plate, heating system and battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221397876.0U CN217935983U (en) | 2022-05-31 | 2022-05-31 | Prevent dry combustion method heating plate, heating system and battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217935983U true CN217935983U (en) | 2022-11-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221397876.0U Active CN217935983U (en) | 2022-05-31 | 2022-05-31 | Prevent dry combustion method heating plate, heating system and battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217935983U (en) |
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2022
- 2022-05-31 CN CN202221397876.0U patent/CN217935983U/en active Active
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