CN210403975U - Integrated temperature sensing cable battery heating film - Google Patents
Integrated temperature sensing cable battery heating film Download PDFInfo
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- CN210403975U CN210403975U CN201921792957.9U CN201921792957U CN210403975U CN 210403975 U CN210403975 U CN 210403975U CN 201921792957 U CN201921792957 U CN 201921792957U CN 210403975 U CN210403975 U CN 210403975U
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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 discloses an integrated temperature sensing cable battery heating film, which is used for heating a battery module and comprises a fixed layer, a first insulating layer, a heating temperature sensing layer and a second insulating layer which are sequentially stacked on the bottom surface of the battery module; the heating temperature sensing layer comprises a heating resistance wire and a temperature sensing cable, the temperature sensing cable is arranged along the length direction of the heating film, and the temperature of the temperature sensing cable is basically equal to that of the battery heating film of the integrated temperature sensing cable; the heating resistance wire comprises a first body, a connecting body and a second body, the first body and the second body are symmetrically arranged at intervals, the connecting body is used for connecting the first end of the first body and the first end of the second body, and the second end of the first body and the second end of the second body are free ends. Through setting up the temperature sensing cable, and make the temperature sensing cable set up along the length direction of heating film, can detect the temperature of almost whole surface of heating film to detect the temperature of integrated temperature sensing cable battery heating film better.
Description
Technical Field
The utility model relates to the technical field of batteries, especially indicate an integrated temperature sensing cable battery heating film.
Background
The heating mode of the battery heating system is heating by using a heating film, and as the requirement of the heating speed of the battery system is increased, the power of the heating film is higher and higher. The surface temperature of the existing heating film can reach about 200 ℃ after being electrified for a long time, and the high temperature can cause the damage of the heating film and the risk of causing thermal runaway of the battery. Therefore, a new battery heating film is needed.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides an integrated temperature sensing cable battery heating film capable of better detecting the temperature of the heating film.
Based on the above purpose, the utility model provides an integrated temperature sensing cable battery heating film for heating a battery module, which comprises a fixing layer, a first insulating layer, a heating temperature sensing layer and a second insulating layer, wherein the fixing layer, the first insulating layer, the heating temperature sensing layer and the second insulating layer are sequentially stacked on the bottom surface of the battery module;
the heating temperature sensing layer comprises a heating resistance wire and a temperature sensing cable, the temperature sensing cable is arranged along the length direction of the heating film, and the temperature of the temperature sensing cable is basically equal to that of the integrated temperature sensing cable battery heating film; the heating resistance wire comprises a first body, a connecting body and a second body, wherein the first body and the second body are symmetrically arranged at intervals, the connecting body is used for connecting the first end of the first body with the first end of the second body, and the second end of the first body and the second end of the second body are free ends.
In one embodiment, the temperature sensing cable is disposed within a distance between the first body and the second body, and the distance between the temperature sensing cable and the first body is the same as the distance between the temperature sensing cable and the second body.
In one embodiment, the temperature sensing cable is arranged adjacent to the heating resistance wire, and the temperature sensing cable is arranged on one side of the first body far away from the second body.
In one embodiment, the temperature sensing cable is arranged adjacent to the heating resistance wire, and the temperature sensing cable is arranged on one side of the second body far away from the first body.
In one embodiment, the temperature sensing cable includes an outer insulating layer and a temperature sensing element, the outer insulating layer is disposed on an outer surface of the temperature sensing element, the temperature sensing element includes a first temperature sensing element and a second temperature sensing element twisted with each other, the first temperature sensing element includes a first core wire and a first temperature sensing insulating wrapping layer, and the second temperature sensing element includes a second core wire and a second temperature sensing insulating wrapping layer.
In one embodiment, the distance between the first body and the second body is 2 to 3 times the diameter of the temperature sensing cable.
In one embodiment, the second end of the first body leads out a first heating resistance wire, the second end of the second body leads out a second heating resistance wire, and the end part of the temperature-sensing cable far away from the connecting body leads out a temperature-sensing cable core.
In one embodiment, the material of the first insulating layer is polyimide or polyamide-imide, and the material of the second insulating layer is epoxy resin.
In one embodiment, the material of the fixing layer is a heat-conducting glue.
In one embodiment, the fixing layer is a fixing plate, and a mounting boss clamped with the battery module is arranged on the surface of the fixing plate away from the first insulating layer.
From the above, can see out, the utility model provides an integrated temperature sensing cable battery heating film sets up the temperature sensing cable through heating the temperature sensing layer, and makes the temperature sensing cable set up along the length direction of heating film, can detect the temperature of almost whole surfaces of heating film, and the temperature of temperature sensing cable equals basically the temperature of integrated temperature sensing cable battery heating film to detect the temperature of integrated temperature sensing cable battery heating film better. And simultaneously, the fixed bed sets up the surface on first insulation layer, first insulation layer sets up the surface on heating temperature sensing layer, heating temperature sensing layer sets up the surface of second insulation layer makes the utility model discloses an integrated temperature sensing cable battery heating film has simple structure, advantage such as the cost is lower.
Drawings
Fig. 1 is a schematic cross-sectional view of an integrated temperature-sensing cable battery heating film according to an embodiment of the present invention;
FIG. 2 is a first schematic view of a heating temperature sensing layer according to an embodiment of the present invention;
FIG. 3 is a second schematic view of a heating temperature sensing layer according to an embodiment of the present invention;
fig. 4 is a third schematic view of a heating temperature sensing layer according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a temperature sensing cable according to an embodiment of the present invention;
the temperature sensing cable comprises a fixing layer 100, a first insulating layer 200, a heating temperature sensing layer 300, a second insulating layer 400, a temperature sensing cable 310, an external insulating layer 311, a first temperature sensing element 312, a second temperature sensing element 313, a first core 314, a first temperature sensing insulating wrapping layer 315, a second core 316, a second temperature sensing insulating wrapping layer 317, a sheath 318, a heating resistance wire 320, a first body 321, a connecting body 322 and a second body 323.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, an embodiment of the present invention provides an integrated temperature sensing cable battery heating film for heating a battery module, including a fixing layer 100, a first insulating layer 200, a heating temperature sensing layer 300, and a second insulating layer 400 stacked on a bottom surface of the battery module in sequence.
The heating temperature layer 300 comprises a heating resistance wire 320 and a temperature sensing cable 310, the temperature sensing cable 310 is arranged along the length direction of the heating film, and the temperature of the temperature sensing cable 310 is basically equal to the temperature of the battery heating film of the integrated temperature sensing cable 310; the heating resistance wire 320 comprises a first body 321, a connecting body 322 and a second body 323, the first body 321 and the second body 323 are symmetrically arranged at intervals, the connecting body 322 is used for connecting a first end of the first body 321 with a first end of the second body 323, and a second end of the first body 321 and a second end of the second body 323 are free ends.
The utility model discloses a set up temperature sensing cable 310 at heating temperature sensing layer, and make temperature sensing cable 310 set up along the length direction of heating the membrane, can detect the temperature of almost all surfaces of heating the membrane, temperature sensing cable 310's temperature equals basically the temperature of integrated temperature sensing cable battery heating membrane to detect the temperature of integrated temperature sensing cable battery heating membrane better. And simultaneously, the fixed layer 100 sets up the surface of first insulation layer 200, first insulation layer 200 sets up the surface of heating temperature layer 300, heating temperature layer 300 sets up the surface of second insulation layer 400 makes the utility model discloses an integrated temperature sensing cable battery heating film has simple structure, advantage such as the cost is lower.
The fixing layer 100 is used to fix the integrated temperature sensing cable battery heating film to the bottom surface of the battery module (not shown), and the fixing layer 100 may be a heat conductive adhesive layer. The heat-conducting adhesive layer has good adhesive force to the battery heating module, and has excellent sealing property, excellent adhesion property and excellent heat-conducting effect. The structure of the heat-conducting glue layer can be a double-faced glue structure or a traceless glue structure.
In an alternative embodiment, the fixing layer 100 is a fixing plate, and a surface of the fixing plate, which is far away from the first insulating layer 200, is provided with a mounting boss for engaging with a battery module. The arrangement of the mounting boss has the advantages of simple structure and reliable connection.
The first insulating layer 200 is used for isolating the integrated temperature sensing cable battery heating film from the battery module. Optionally, the material of the first insulating layer 200 is polyimide or polyamideimide. The polyimide film has good insulating property, and simultaneously, the polyimide film has a protective effect on the heating temperature sensing layer 300, so that the damage of the heating temperature sensing layer 300 can be effectively avoided. The polyimide film can separate the heating temperature sensing layer 300 from the battery module, and insulation between the heating temperature sensing layer 300 and the battery module is ensured.
In some embodiments, the temperature sensitive cable 310 is disposed within a spacing of the first body and the second body. The pitch may be set to be 2 to 3 times the diameter of the temperature sensing cable 310. The temperature-sensitive cable 310 may be disposed at an arbitrary position of the pitch. The distance between the temperature sensing cable 310 and the end of the first body 321 close to the temperature sensing cable 310 is a first value, the distance between the temperature sensing cable 310 and the end of the second body 323 close to the temperature sensing cable 310 is a second value, and the first value and the second value may be the same or different.
Alternatively, the first value is equal to the second value, that is, the temperature sensing cable 310 is disposed in the middle of the distance between the first body 321 and the second body 323, as shown in fig. 2, that is, the distance between the temperature sensing cable 310 and the first body 321 is the same as the distance between the temperature sensing cable 310 and the second body 323. The distance between the temperature sensing cable 310 and the first body 321 is the same as that between the temperature sensing cable 310 and the second body 323, so that the first body 321 and the second body 323 can radiate heat better, the temperature sensing cable 310 can sense heat more uniformly, and the service life of the temperature sensing heating layer is prolonged.
Optionally, the first value is different from the second value. In one embodiment, the first value is smaller than the second value, i.e. the temperature sensing cable 310 is relatively close to the first body 321, i.e. the temperature sensing cable 310 is close to the first body 321. In another embodiment, the first value is greater than the second value, i.e. the temperature sensing cable 310 is relatively close to the second body 323, i.e. the temperature sensing cable 310 is close to the second body 323.
In other embodiments, the temperature-sensitive cable 310 is disposed adjacent to the resistance heater wire. The pitch may be set to be 1 to 2 times the diameter of the temperature sensing cable 310. Alternatively, the temperature-sensitive cable 310 is disposed on a side of the first body away from the second body, as shown in fig. 3. Alternatively, the temperature-sensitive cable 310 is provided on a side of the second body away from the first body, as shown in fig. 4.
In the heating temperature-sensing layer 300, the first heating resistance wire 320 is led out from the second end of the first body 321 of the heating resistance wire 320, the second heating resistance wire 320 is led out from the second end of the second body 323, and the temperature-sensing cable core is led out from the end of the temperature-sensing cable 310 far away from the connecting body 322. The second end of the first body 321 is an end opposite to the first end of the first body 321, i.e., an end of the first body 321 for connecting the connector 322, and may be understood as an end of the first body 321 opposite to the first end in the length direction of the heating film. The second end of the second body 323 is an end opposite to the first end of the second body 323, that is, an end of the second body 323 for connecting the connecting body 322, and may be understood as an end of the second body 323 opposite to the first end in the longitudinal direction of the heating film. Accordingly, the temperature-sensitive cable 310 is led out from the end of the heating film which is apart from the connecting body 322 in the longitudinal direction of the heating film.
Referring to fig. 5, the temperature sensing cable 310 includes an outer insulating layer 311 and a temperature sensing element, the outer insulating layer 311 is disposed on an outer surface of the temperature sensing element, the temperature sensing element includes a first temperature sensing element 312 and a second temperature sensing element 313 twisted with each other, the first temperature sensing element 312 includes a first core wire 314 and a first temperature sensing insulating wrapping layer 315, and the second temperature sensing element 313 includes a second core wire 316 and a second temperature sensing insulating wrapping layer 317. The materials of the first temperature sensing insulating wrapping layer 315 and the second temperature sensing insulating wrapping layer 317 may be selected according to set temperatures of different battery systems. The realization of the specific alarm or control of the temperature sensing cable is the prior art. The present application is not concerned with improvements to the temperature sensitive cable and therefore will not be described in detail herein.
Optionally, the temperature-sensing cable 310 further includes an outer sheath 318, and the outer insulating layer 311 of the temperature-sensing cable 310 can be protected by the outer sheath 318, so that the mechanical strength, chemical corrosion resistance, moisture resistance, water and immersion resistance, and capability of preventing the temperature-sensing cable 310 from burning can be improved for the temperature-sensing cable 310.
As an alternative embodiment, the temperature-sensitive cable 310 may also be an "analog quantity constant temperature type" and an "analog quantity difference constant temperature type temperature-sensitive cable".
The second insulating layer 400 is used to isolate the integrated temperature sensing cable battery heating film from the battery module. The material of the second insulating layer 400 is epoxy resin, and may be an epoxy resin board. Optionally, all seted up the louvre on the epoxy board, the quantity of louvre sets up to a plurality ofly, and a plurality of louvres are triangle-shaped array distribution, and when battery module temperature was higher, battery module accessible louvre in time dispels the heat, and the radiating effect is good, has effectively avoided the battery module high temperature, has improved the safety in utilization of integrated temperature sensing cable battery heating film.
The utility model discloses an integrated temperature sensing cable battery heating film is when using, through the fixed bed 100 that the heat-conducting adhesive layer constitutes, fixes it to battery heating module. When the temperature sensing cable 310 is used, the temperature sensing cable can sense the temperature of the heating temperature sensing layer 300, when the ambient temperature is higher than the predetermined action temperature, the first temperature sensing insulating wrapping layer 315 and the second temperature sensing insulating wrapping layer 317 can be broken, so that the first core wire 314 and the second core wire 316 are short-circuited, and the temperature sensing cable short-circuit signal is detected through a battery BMS (battery management system) to realize alarming or control. And in the use process, the heat dissipation holes arranged on the second insulating layer can improve the use safety of the integrated temperature-sensing cable battery heating film.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.
In addition, well known power/ground connections to Integrated Circuit (IC) chips and other components may or may not be shown within the provided figures for simplicity of illustration and discussion, and so as not to obscure the invention. Furthermore, devices may be shown in block diagram form in order to avoid obscuring the invention, and also in view of the fact that specifics with respect to implementation of such block diagram devices are highly dependent upon the platform within which the present invention is to be implemented (i.e., specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuits) are set forth in order to describe example embodiments of the invention, it should be apparent to one skilled in the art that the invention can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative instead of restrictive.
While the present invention has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those of ordinary skill in the art in light of the foregoing description.
The embodiments of the invention are intended to embrace all such alternatives, modifications and variances that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (10)
1. An integrated temperature-sensing cable battery heating film is used for heating a battery module and is characterized by comprising a fixing layer, a first insulating layer, a heating temperature-sensing layer and a second insulating layer which are sequentially stacked on the bottom surface of the battery module;
the heating temperature sensing layer comprises a heating resistance wire and a temperature sensing cable, the temperature sensing cable is arranged along the length direction of the heating film, and the temperature of the temperature sensing cable is basically equal to that of the integrated temperature sensing cable battery heating film; the heating resistance wire comprises a first body, a connecting body and a second body, wherein the first body and the second body are symmetrically arranged at intervals, the connecting body is used for connecting the first end of the first body with the first end of the second body, and the second end of the first body and the second end of the second body are free ends.
2. The integrated temperature-sensing cable battery heating membrane of claim 1, wherein the temperature-sensing cable is disposed within a distance between the first body and the second body, the distance between the temperature-sensing cable and the first body being the same as the distance between the temperature-sensing cable and the second body.
3. The integrated temperature-sensing cable battery heating film of claim 1, wherein the temperature-sensing cable is disposed adjacent to the heating resistance wire, the temperature-sensing cable being disposed on a side of the first body away from the second body.
4. The integrated temperature-sensing cable battery heating film of claim 1, wherein the temperature-sensing cable is disposed adjacent to the heating resistance wire, the temperature-sensing cable being disposed on a side of the second body away from the first body.
5. The integrated temperature-sensing cable battery heater film according to any one of claims 1 to 4, wherein the temperature-sensing cable comprises an outer insulating layer and a temperature-sensing element, the outer insulating layer is disposed on an outer surface of the temperature-sensing element, the temperature-sensing element comprises a first temperature-sensing element and a second temperature-sensing element twisted with each other, the first temperature-sensing element comprises a first core wire and a first temperature-sensing insulating wrapping layer, and the second temperature-sensing element comprises a second core wire and a second temperature-sensing insulating wrapping layer.
6. The integrated temperature-sensing cable battery heating film according to claim 1, wherein a distance between the first body and the second body is set to a size of 2 to 3 times a diameter of the temperature-sensing cable.
7. The integrated temperature-sensing cable battery heating film according to claim 1, wherein a first heating resistance wire is led out from a second end of the first body, a second heating resistance wire is led out from a second end of the second body, and a temperature-sensing cable core is led out from an end of the temperature-sensing cable far away from the connector.
8. The integrated temperature-sensitive cable battery heating film according to claim 1, wherein the material of the first insulating layer is polyimide or polyamideimide, and the material of the second insulating layer is epoxy resin.
9. The integrated temperature-sensitive cable battery heating film according to claim 1, wherein the material of the fixing layer is a thermally conductive adhesive.
10. The integrated temperature-sensing cable battery heating film according to claim 1, wherein the fixing layer is a fixing plate, and a mounting boss for engaging with a battery module is disposed on a surface of the fixing plate away from the first insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921792957.9U CN210403975U (en) | 2019-10-23 | 2019-10-23 | Integrated temperature sensing cable battery heating film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921792957.9U CN210403975U (en) | 2019-10-23 | 2019-10-23 | Integrated temperature sensing cable battery heating film |
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| CN210403975U true CN210403975U (en) | 2020-04-24 |
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| CN201921792957.9U Active CN210403975U (en) | 2019-10-23 | 2019-10-23 | Integrated temperature sensing cable battery heating film |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111525466A (en) * | 2020-05-25 | 2020-08-11 | 中车大连机车车辆有限公司 | Temperature sensing cable fixing device and vehicle chassis |
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2019
- 2019-10-23 CN CN201921792957.9U patent/CN210403975U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111525466A (en) * | 2020-05-25 | 2020-08-11 | 中车大连机车车辆有限公司 | Temperature sensing cable fixing device and vehicle chassis |
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