CN215933693U - Low-temperature environment electric auxiliary heating automatic control device of lithium battery pack - Google Patents
Low-temperature environment electric auxiliary heating automatic control device of lithium battery pack Download PDFInfo
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- CN215933693U CN215933693U CN202120586924.XU CN202120586924U CN215933693U CN 215933693 U CN215933693 U CN 215933693U CN 202120586924 U CN202120586924 U CN 202120586924U CN 215933693 U CN215933693 U CN 215933693U
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses an automatic control device for low-temperature environment electric auxiliary heating of a lithium battery pack, which relates to the technical field of related structures for lithium batteries and comprises a shell, the lithium battery pack and a heating mechanism, wherein the lithium battery pack is wrapped by a heat-insulating layer, and the heating mechanism is arranged beside the heat-insulating layer; the heating mechanism comprises a mounting rack, wherein conductive frames are arranged on the upper side and the lower side of the interior of the mounting rack, the conductive frames are connected with electric wires, conductive tubes are arranged in the conductive frames at equal intervals, the conductive tubes are electrically connected with the conductive frames, electric heating tubes are arranged in the conductive frames, and conductive heads are arranged at two ends of each electric heating tube. This low temperature environment insulation construction's beneficial effect is, has the purpose of keeping warm and heating lithium cell group, makes lithium cell group also can normally work under microthermal environment, still is provided with first temperature sensor and second temperature sensor and responds to the temperature of lithium cell group to control opening and close of heating mechanism.
Description
Technical Field
The utility model belongs to the technical field of related structures for lithium batteries, and particularly relates to an electric auxiliary heating automatic control device for a lithium battery pack in a low-temperature environment.
Background
Lithium batteries are batteries which use a nonaqueous electrolyte solution and use lithium metal or lithium alloy as a positive/negative electrode material, do not contain metallic lithium and can be charged, and have various advantages of high energy ratio, long service life, high rated voltage, high power bearing capacity and the like, so the lithium batteries are widely applied.
However, the working performance and the service life of the lithium battery are affected when the lithium battery is used in a low-temperature environment, and a specific structure for protecting the lithium battery in the low-temperature environment is not disclosed at present, so that the use requirement in the environment cannot be met, and therefore, a low-temperature protection structure for the lithium battery is urgently needed to be developed in the market to solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an automatic control device for low-temperature environment electric auxiliary heating of a lithium battery pack, which achieves the purposes of heat preservation and heating of the lithium battery pack by arranging a heat preservation layer and a heating mechanism, enables the lithium battery pack to work normally in a low-temperature environment, reduces the dependence on the external environment, and is also provided with a first temperature sensor and a second temperature sensor for sensing the temperature of the lithium battery pack so as to control the on-off of the heating mechanism.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
the utility model provides a low temperature environment electricity auxiliary heating automatic control device of lithium cell group, includes the casing, be provided with lithium cell group and heating mechanism in the casing, the outer parcel of lithium cell group has the heat preservation, heating mechanism sets up by the heat preservation, lithium cell group is other still to be provided with first temperature sensor and second temperature sensor, first temperature sensor and second temperature sensor all with heating mechanism electric connection.
Preferably, the heating mechanism is a heating plate, and heating wires are arranged on the heating plate.
Preferably, the heating mechanism includes a mounting rack, the upper and lower sides of the interior of the mounting rack are provided with conductive frames, the conductive frames are connected with electric wires, conductive tubes are arranged in the conductive frames at equal intervals, the conductive tubes are electrically connected with the conductive frames, electric heating tubes are arranged in the conductive frames, conductive heads are arranged at two ends of the electric heating tubes, the conductive heads are movably sleeved in the conductive tubes, and the conductive heads are electrically connected with the conductive tubes.
Preferably, a pressing spring is arranged in the conductive tube, the upper end of the pressing spring is fixedly connected with the inner wall of the conductive tube, and the lower end of the pressing spring is provided with a conductive connecting plate.
Preferably, the heat-insulating layer comprises a polyurethane layer, a mineral wool layer and a phenolic foam layer which are arranged in sequence from inside to outside.
Preferably, temperature-resistant epoxy glue is arranged between the polyurethane layer and the mineral wool layer and between the mineral wool layer and the phenolic foam layer.
Preferably, the housing comprises a bottom plate and side plates arranged on two sides, and edges of two sides of the bottom plate are fixedly connected with edges of lower ends of the side plates.
Preferably, the edges of the bottom plate and the side plates are provided with limit edge covering strips.
Preferably, the corners of the limit edge banding are formed with round corners.
The utility model has the following beneficial effects:
the basic heat preservation effect is achieved by arranging the heat preservation layer and the heating mechanism, the heat preservation layer is wrapped on the lithium battery pack, when the temperature is low, the heating mechanism can be started for heating, the lithium battery can work at a proper temperature by heating, the limitation of the change of the external environment on the working performance of the lithium battery is reduced, the lithium battery works stably, the first temperature sensor and the second temperature sensor are arranged for sensing the temperature of the lithium battery pack, when the first temperature sensor senses that the temperature of the lithium battery pack is lower than a set threshold value, the first temperature sensor transmits information to the heating mechanism to be started for heating, when the temperature that second temperature sensor sensed lithium cell group was higher than and sets for the threshold, can transmit information and close to heating mechanism, the stop heating makes the temperature of lithium cell group keep working in suitable interval.
Drawings
FIG. 1 is a general view of the low-temperature environment insulation structure according to the present invention;
FIG. 2 is a schematic view of the internal structure of the heating mechanism according to the present invention;
FIG. 3 is a cross-sectional view of the insulation layer as viewed from above;
fig. 4 is a schematic view of the internal structure of the conductive tube.
In the figure: 1-shell, 2-lithium battery pack, 3-heating mechanism, 4-insulating layer, 5-mounting rack, 6-conductive rack, 7-conductive tube, 8-conductive head, 9-compression spring, 10-polyurethane layer, 11-mineral cotton layer, 12-phenolic foam layer, 13-temperature-resistant epoxy glue, 14-bottom plate, 15-side plate, 16-limit edge wrapping strip, 17-fillet, 18-conductive connecting plate, 19-electric heating tube, 20-electric wire, 21-first temperature sensor and 22-second temperature sensor.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1 to 4, an automatic control device for low-temperature environment electric auxiliary heating of a lithium battery pack comprises a housing 1, the housing 1 comprises a bottom plate 14 and side plates 15 arranged on two sides, two side edges of the bottom plate 14 and lower end edges of the side plates 15 are welded and fixed to form a frame shape, or the bottom plate 14 and the side plates 15 are formed by rolling and bending in an integrated forming manner, a lithium battery pack 2 and a heating mechanism 3 are arranged in the housing 1, a heat-insulating layer 4 is wrapped outside the lithium battery pack 2 and has a heat-insulating effect on the lithium battery pack 2, the heating mechanism 3 is arranged beside the heat-insulating layer 4, the heat-insulating layer 4 is used for preventing external low temperature from invading into the lithium battery pack 2 and preventing the lithium battery pack 2 from being exposed in a low-temperature environment, a first temperature sensor 21 and a second temperature sensor 22 are further arranged beside the lithium battery pack 2, specifically, the first temperature sensor 21 and the second temperature sensor 22 are arranged on inner walls of the heat-insulating layer 4, contact with lithium cell group 2, respond to the temperature variation of lithium cell group 2, first temperature sensor 21 and second temperature sensor 22 all with heating mechanism 3 electric connection, when first temperature sensor 21 senses that the temperature of lithium cell group 2 is less than when setting for the threshold, for example in this embodiment, can set for minimum temperature threshold and be-22 degrees, then first temperature sensor 21 can transmit information and open to heating mechanism 3, heat, when second temperature sensor 22 senses that the temperature of lithium cell group 2 is higher than when setting for the threshold, can transmit information and close to heating mechanism 3, stop heating, make the temperature of lithium cell group 2 keep working in suitable interval, well keep best working property.
As a first embodiment, the heating mechanism 3 is a heating plate, heating wires are arranged on the heating plate, and generate heat after being electrified, as another embodiment, the heating mechanism 3 may be a structure as shown in fig. 2, which includes a mounting frame 5, conductive frames 6 are arranged on the upper and lower sides inside the mounting frame 5, the conductive frames 6 are connected with electric wires 20, the electric wires 20 are connected with an external power supply, conductive tubes 7 are arranged in the conductive frames 6 at equal intervals, the conductive tubes 7 are electrically connected with the conductive frames 6, an electrothermal tube 19 is arranged in the conductive frame 7, conductive heads 8 are arranged at two ends of the electrothermal tube 19, the conductive heads 8 are movably sleeved in the conductive tubes 7, the conductive heads 8 are electrically connected with the conductive tubes 7, the conductive frames 6, the conductive tubes 7 and the conductive heads 8 are all made of conductive metal materials, so that the electrothermal tube 19 can be electrified and generate heat after being loaded, the design is aimed at, convenient maintenance and repair, each electric heating tube 19 plays an independent role, one or part of the electric heating tubes 19 has a fault, the whole electric heating tube also has a heating effect, and the electric heating tube 19 with the fault can be disassembled for replacement, wherein, a pressing spring 9 is arranged in the conductive tube 7, the upper end of the pressing spring 9 is welded with the inner wall of the conductive tube 7, a conductive connecting plate 18 is arranged at the lower end, the conductive connecting plate 18 is also made of conductive metal materials, the contact area with the conductive head 8 can be increased, the conduction is stable, by arranging the pressing spring 9, when the electric heating tube 19 is installed or disassembled, the conductive heads 8 at the two ends can extrude the pressing spring 9, then the conductive tube 7 is smoothly arranged in the conductive tube 7 at the upper side and the lower side or is disassembled from the conductive tube 7 at the upper side and the lower side, and the abutting spring 9 can also reset to abut against the conductive head 8, thereby not influencing the conduction.
The heat preservation 4 includes polyurethane layer 10 that sets gradually from inside to outside, mineral wool layer 11 and phenolic foam layer 12, polyurethane layer 10, mineral wool layer 11 and phenolic foam layer 12 material all have high temperature resistance, and have the difficult fire, the effect of low cigarette, between polyurethane layer 10 and the mineral wool layer 11, and all be provided with temperature resistant epoxy glue 13 between mineral wool layer 11 and the phenolic foam layer 12, bond through temperature resistant epoxy glue 13, 13 materials of temperature resistant epoxy glue have high temperature resistance effect equally, safety and reliability.
The above are only preferred embodiments of the present invention, and the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made to the technical solutions described in the above embodiments, and to some of the technical features thereof, are included in the scope of the present invention.
Claims (9)
1. The utility model provides a low temperature environment electricity auxiliary heating automatic control device of lithium cell group, a serial communication port, which comprises a housin, be provided with lithium cell group and heating mechanism in the casing, the outer parcel of lithium cell group has the heat preservation, heating mechanism sets up by the heat preservation, lithium cell group is other still to be provided with first temperature sensor and second temperature sensor, first temperature sensor and second temperature sensor all with heating mechanism electric connection.
2. The automatic control device for low-temperature environment electric auxiliary heating of the lithium battery pack as claimed in claim 1, wherein the heating mechanism is a heating plate, and heating wires are arranged on the heating plate.
3. The automatic control device for low-temperature environment electric auxiliary heating of the lithium battery pack according to claim 1, wherein the heating mechanism comprises a mounting frame, conductive frames are arranged on the upper side and the lower side inside the mounting frame, the conductive frames are connected with electric wires, conductive tubes are arranged in the conductive frames at equal intervals, the conductive tubes are electrically connected with the conductive frames, electric heating tubes are arranged in the conductive frames, conductive heads are arranged at two ends of each electric heating tube, the conductive heads are movably sleeved in the conductive tubes, and the conductive heads are electrically connected with the conductive tubes.
4. The automatic control device for low-temperature environment electric auxiliary heating of the lithium battery pack as claimed in claim 3, wherein a pressing spring is disposed in the conductive tube, an upper end of the pressing spring is fixedly connected to an inner wall of the conductive tube, and a lower end of the pressing spring is provided with a conductive connection plate.
5. The automatic control device for low-temperature environment electric auxiliary heating of the lithium battery pack as claimed in claim 1, wherein the heat insulation layer comprises a polyurethane layer, a mineral wool layer and a phenolic foam layer which are sequentially arranged from inside to outside.
6. The automatic control device for low-temperature environment electric auxiliary heating of the lithium battery pack according to claim 5, wherein temperature-resistant epoxy glue is arranged between the polyurethane layer and the mineral wool layer and between the mineral wool layer and the phenolic foam layer.
7. The automatic control device for low-temperature environment electric auxiliary heating of the lithium battery pack as claimed in claim 1, wherein the casing comprises a bottom plate and side plates disposed at two sides, and edges of two sides of the bottom plate are fixedly connected with edges of lower ends of the side plates.
8. The automatic control device for low-temperature environment electric auxiliary heating of the lithium battery pack as claimed in claim 7, wherein the edges of the bottom plate and the side plates are provided with limit edge strips.
9. The automatic control device for low-temperature environment electric auxiliary heating of the lithium battery pack as claimed in claim 8, wherein the edge of the limiting edge covering strip is formed with a round angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120586924.XU CN215933693U (en) | 2021-03-23 | 2021-03-23 | Low-temperature environment electric auxiliary heating automatic control device of lithium battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120586924.XU CN215933693U (en) | 2021-03-23 | 2021-03-23 | Low-temperature environment electric auxiliary heating automatic control device of lithium battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215933693U true CN215933693U (en) | 2022-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120586924.XU Active CN215933693U (en) | 2021-03-23 | 2021-03-23 | Low-temperature environment electric auxiliary heating automatic control device of lithium battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215933693U (en) |
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2021
- 2021-03-23 CN CN202120586924.XU patent/CN215933693U/en active Active
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