CN212907860U

CN212907860U - Automatic constant temperature starts lithium cell

Info

Publication number: CN212907860U
Application number: CN202021708860.8U
Authority: CN
Inventors: 艾祺鸿
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-04-06
Anticipated expiration: 2030-08-17

Abstract

The utility model discloses an automatic constant temperature starts lithium cell, including shell, inner shell, circuit board and a plurality of electric core group that are used for the control to start the battery state, be equipped with heating module in the shell, 45 transformer oil are equipped with in the inner shell, and electric core group submergence is in 45 transformer oil, heating module includes a plurality of ceramic heating pieces and the control module who is used for controlling ceramic heating piece function, and equal electricity is connected between ceramic heating piece, control module and the arbitrary both of circuit board, the ceramic heating piece is inserted and is located between the electric core group. The utility model discloses convenient to use can improve the heating effect, shortens the length of starting battery intensification, does benefit to the quick recovery of starting battery and uses.

Description

Automatic constant temperature starts lithium cell

Technical Field

The utility model relates to a battery field, concretely relates to automatic constant temperature starts lithium cell.

Background

At present, various batteries have the problem that the discharge capacity is obviously reduced in cold weather, and the discharge capacity of the lithium battery is reduced by half at the temperature of below-20 ℃, so that the electric automobile has the problems of difficulty in popularization, inapplicability in winter and the like in the north. The most ideal charging and discharging temperature of the lithium battery is 20-25 ℃, experiments show that the capacity of the lithium battery can be reduced by 1% when the temperature is reduced once, the lowest temperature in the northeast three provinces or the northern hemisphere can reach minus 40 ℃ in winter, and the common battery can not work in the cold environment.

Accordingly, a new battery has been developed to solve the above problems. Patent numbers: 201020244801.X discloses a constant temperature battery, which is additionally provided with a heat insulation layer, a heat storage substance is arranged between the heat insulation layer and the battery, and an electric heating device and a temperature control device are arranged to keep the battery at a normal working temperature.

The scheme has the following defects: the heating device is positioned at the bottom of the battery, and because the heat storage substance only wraps and heats the periphery of the battery, the heat on the heat storage substance can only heat the inside of the battery from outside to inside. Because the heat all can receive the influence of thermal resistance when transmitting between different objects and object inside, consequently the heat that heating device produced can reduce after the transmission many times for heating inefficiency is unfavorable for the quick recovery of battery under low temperature environment and uses.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an improve heating efficiency and convenient to use's automatic constant temperature start lithium cell.

The utility model provides a technical scheme that above-mentioned problem adopted is:

the utility model provides an automatic constant temperature starts lithium cell, includes shell, inner shell, is used for control to start circuit board and a plurality of electric core group of battery state, be equipped with heating module in the shell, 45 number transformer oil is equipped with in the inner shell, because 45 number transformer oil can not solidify at 45 ℃ below zero for keep liquid state environment in the inner shell all the time, avoided electric core group to lead to freezing and damage because of the low temperature, electric core group submergence in 45 number transformer oil, heating module includes a plurality of ceramic heating pieces and the control module who is used for controlling the operation of ceramic heating piece, and ceramic heating piece, control module and circuit board are all connected between the two electricity wantonly, the ceramic heating piece is inserted and is located between the electric core group.

As a further improvement of the technical scheme, the electric core groups are electrically connected with the circuit board, the electric core groups are electrically connected in parallel, each electric core group comprises a plurality of electric cores, and the electric cores are electrically connected in series, so that the capacity of the starting battery is improved, and the cruising ability of the starting battery is guaranteed.

As a further improvement of the technical scheme, the control module comprises a temperature controller, a thermocouple and a relay, the temperature controller is electrically connected with the circuit board, the thermocouple and the relay, and the relay is electrically connected with the ceramic heating sheet. When the temperature in the starting battery is higher than the upper limit temperature set on the temperature controller, the temperature controller controls the input loop of the control relay electrically, so that the output loop of the relay is disconnected, and the ceramic heating sheet is powered off and stops heating. The ceramic heating sheet has the advantages of small thermal resistance and high heat exchange efficiency, so that the ceramic heating sheet is used for automatically keeping the constant temperature of the starting battery, has the characteristics of electricity saving, durability and safety, and is favorable for maintaining the proper temperature of the starting battery for a long time.

As a further improvement of the technical scheme, the inner shell is made of metal, connecting holes for electric connection between the electric core group and the circuit board and between the ceramic heating sheet and the circuit board are formed in the inner shell, and a sealing ring for preventing No. 45 transformer oil in the inner shell from flowing out is arranged on the connecting holes.

As a further improvement of the technical scheme, a heat insulation cotton layer is arranged between the inner shell and the outer shell, so that heat dissipation is reduced, the heat insulation effect is improved, and the heating duration is favorably reduced.

As a further improvement of the technical scheme, the number of the ceramic heating sheets is two, the rated voltage of the ceramic heating sheets is 12v, and the power of the ceramic heating sheets is 5w, so that the damage of parts is avoided, the heating effect is guaranteed, and the temperature in the starting battery is increased.

As a further improvement of the technical scheme, a first display screen for displaying the temperature in the starting battery is arranged on the shell, so that the situation in the starting battery can be conveniently known.

As a further improvement of the technical scheme, a second display screen for displaying the terminal voltage of the starting battery is arranged on the shell, so that the situation in the starting battery can be known conveniently.

As a further improvement of the technical scheme, a switch for controlling the power on and off of the heating module is arranged on the shell.

As a further improvement of the technical scheme, the thermocouple is immersed in No. 45 transformer oil.

Compared with the prior art, the utility model, have following advantage and effect:

the utility model discloses a set up ceramic heating piece between the electric core group for the electric core group can directly be heated, and heating efficiency is higher, thereby lets electric core work for a long time about 15 ℃ -20 ℃, makes it exert its maximum energy. Furthermore, through setting up the switch, when using under non-low temperature environment, can break off the power supply loop of heating module through the switch to sparingly heating module is to the consumption of battery energy.

Drawings

Fig. 1 is a schematic top view of the structure of an automatic constant temperature starting lithium battery of the present invention.

Fig. 2 is the utility model relates to an automatic constant temperature starts inside structural schematic of lithium cell.

Fig. 3 is a schematic view of a control circuit structure of the ceramic heating sheet shown in fig. 2.

The device comprises an outer shell, 11 positive electrode lugs, 12 negative electrode lugs, 13 first display screens, 14 second display screens, 15 switches, 16 handles, 2 inner shells, 21-45 transformer oil, 22 insulating cotton layers, 23 connecting holes, 24 sealing rings, 3 circuit boards, 4 heating modules, 41 ceramic heating sheets, 42 control modules, 421 temperature controllers, 422 thermocouples, 423 relays, 5 electric core groups and 51 electric cores.

Detailed Description

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

Referring to fig. 1-3, this embodiment of an automatic constant temperature start lithium battery, including shell 1, inner shell 2, circuit board 3 and a plurality of electric core group 5 for monitoring the start battery state, be equipped with heating module 4 in the shell 1, No. 45 transformer oil 21 is equipped with in the inner shell 2, electric core group 5 submerges in No. 45 transformer oil 21, heating module 4 includes a plurality of ceramic heating plates 41 and a control module 42 for controlling the operation of ceramic heating plate 41, and ceramic heating plate 41, control module 42 and circuit board 3 are arbitrary to be connected between them all electrically, ceramic heating plate 41 is inserted and is located between electric core group 5, electric core group 5 is connected with circuit board 3 electricity, and electric core group 5 is connected with the electricity in parallel, electric core group 5 includes a plurality of electric cores 51, and electric core 51 is connected with the electricity in series, control module 42 includes temperature controller 421, electric core group 5, Thermocouple 422 and relay 423, temperature controller 421 and circuit board 3, thermocouple 422, relay 423 are all connected electrically, relay 423 is connected with ceramic heating plate 41 electrically, inner shell 2 adopts the metal material, offer on the inner shell 2 and be used for between core group 5 and the circuit board 3, ceramic heating plate 41 and circuit board 3 between the connecting hole 23 of electricity connection, be equipped with on the connecting hole 23 and be used for preventing the inner shell 2 in No. 45 transformer oil 21 outflow sealing washer 24, be equipped with heat preservation cotton layer 22 between inner shell 2 and the shell 1, ceramic heating plate 41 has two, the rated voltage of ceramic heating plate 41 is 12v, the power of ceramic heating plate 41 is 5w, be equipped with the first display screen 13 that is used for showing the interior temperature of start-up battery on the shell 1, be equipped with the second display screen 14 that is used for showing the terminal voltage of start-up battery on the shell 1, be equipped with the switch 15 that is used for controlling heating module 4 to energize, the thermocouple 422 is immersed in No. 45 transformer oil 21.

To sum up, the utility model discloses the theory of operation as follows:

when the temperature in the starting battery is lower than the lower limit temperature set in the temperature controller, the temperature controller is switched on to electrify the relay, the armature iron in the relay is attached to the coil, and the ceramic heating sheet is electrified to heat; when the temperature in the starting battery is higher than the upper limit temperature set on the temperature controller, the temperature controller is switched off to cut off the power of the relay, the armature iron in the relay is separated from the coil, and the ceramic heating plate is cut off to stop heating;

if the device is not used for a long time, the heating module in the starting battery is closed through the switch.

Experiments show that the lithium battery is automatically started at constant temperature, the influence of the external temperature is not easy to be received, even if the lithium battery is started below the environment of 20 ℃ below zero, the lithium battery only needs 60AH capacity (discharge multiplying power of 30C), the current of 2000A can be instantly discharged, and the vehicle can be quickly started.

The above description in this specification is merely illustrative of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides an automatic constant temperature starts lithium cell, includes shell (1), inner shell (2), is used for circuit board (3) and a plurality of electric core group (5) of control start-up battery state, its characterized in that: be equipped with heating module (4) in shell (1), be equipped with number 45 transformer oil (21) in inner shell (2), electric core group (5) submergence is in number 45 transformer oil (21), heating module (4) include a plurality of ceramic heating piece (41) and be arranged in controlling control module (42) of ceramic heating piece (41) operation, and equal electricity is connected between ceramic heating piece (41), control module (42) and circuit board (3) arbitrary both, ceramic heating piece (41) are inserted and are located between electric core group (5).

2. The automatic constant temperature start lithium battery of claim 1, wherein: the electric core group (5) is electrically connected with the circuit board (3), the electric core group (5) is electrically connected in parallel, the electric core group (5) comprises a plurality of electric cores (51), and the electric cores (51) are electrically connected in series.

3. The automatic constant temperature start lithium battery of claim 1, wherein: the control module (42) comprises a temperature controller (421), a thermocouple (422) and a relay (423), the temperature controller (421) is electrically connected with the circuit board (3), the thermocouple (422) and the relay (423), and the relay (423) is electrically connected with the ceramic heating sheet (41).

4. The automatic constant temperature start lithium battery of claim 1, wherein: the inner shell (2) is made of metal, a connecting hole (23) which is used for electric connection between the electric core group (5) and the circuit board (3) and between the ceramic heating sheet (41) and the circuit board (3) is formed in the inner shell (2), and a sealing ring (24) which is used for preventing No. 45 transformer oil (21) in the inner shell (2) from flowing out is arranged on the connecting hole (23).

5. The automatic constant temperature start lithium battery of claim 1, wherein: and a heat insulation cotton layer (22) is arranged between the inner shell (2) and the outer shell (1).

6. The automatic constant temperature start lithium battery of claim 1, wherein: the number of the ceramic heating plates (41) is two, the rated voltage of the ceramic heating plates (41) is 12V, and the power of the ceramic heating plates (41) is 5W.

7. The automatic constant temperature start lithium battery of claim 1, wherein: and a first display screen (13) for displaying the temperature in the starting battery is arranged on the shell (1).

8. The automatic constant temperature start lithium battery of claim 1, wherein: and a second display screen (14) for displaying the terminal voltage of the starting battery is arranged on the shell (1).

9. The automatic constant temperature start lithium battery of claim 1, wherein: and a switch (15) for controlling the power-on and power-off of the heating module (4) is arranged on the shell (1).

10. The automatic constant temperature start lithium battery of claim 3, wherein: the thermocouple (422) is immersed in No. 45 transformer oil (21).