Battery equalization device and battery equalization method

Abstract

The invention relates to the technical field of battery equalization devices, and discloses a battery equalization device which comprises a mounting plate, a power battery is mounted at the top of the mounting plate, and a radiator is fixedly assembled on the outer wall of the power battery. According to the battery equalization device and the battery equalization method, the heat conduction cover is arranged at the top of the power battery, and when the resistor consumes electric energy for voltage equalization, air in the inner cavity of the heat conduction cover can be heated, so that the air expands after being heated and then enters the inner cavity of the fixed bin along the air guide pipe; according to the technical scheme, the rotating rod is driven to rotate, then the generator is driven, electric energy is generated, the radiator and the heating plate are driven by the electric energy, heating and heat dissipation of the power batteries are achieved, the oneness of voltage balance through a resistor in traditional arrangement is avoided, and the balance effect between the power batteries is better achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery balancing devices, and in particular to a battery balancing device and a battery balancing method. Background Art

[0002] Since the nominal voltage of a single lithium battery is only 3.2-3.7V, in order to be suitable for a variety of loads in different occasions, the single cells must be combined in series and parallel. The output voltage is increased by series connection, and the battery pack capacity is increased by parallel connection to form a battery pack that meets the load requirements. The battery pack is composed of multiple single cells. In order to ensure the stable operation of the battery pack, it is necessary to balance the single cells to ensure that the states of each single cell can remain relatively consistent, which requires voltage and temperature balance between each single cell.

[0003] When using traditional single-cell balancing, the voltage of the single cell is often balanced by using resistor heating, and the excess electric energy is continuously released into the resistor, causing the resistor to continuously heat up, and the electric energy is consumed in the process of resistor heating. However, traditional resistors will generate a lot of heat when in use, and this heat will affect the normal operating temperature of the battery. In addition, the traditional resistor method can only balance the voltage of the battery, but cannot balance the temperature of the battery. Summary of the invention

[0004] The present invention provides a battery balancing device and a battery balancing method, which solve the problems raised by the above background technology.

[0005] The present invention provides the following technical solution: a battery balancing device, comprising a mounting plate, a power battery is mounted on the top of the mounting plate, a radiator is fixedly mounted on the outer wall of the power battery, a heating plate is fixedly mounted on the outer wall of the power battery, a control mainboard is fixedly mounted on the top of the power battery, a storage battery is fixedly mounted on the top of the power battery, a heat conduction component is provided on the top of the power battery, a drive component is provided on the top of the power battery, and an air intake component is provided on the outer wall of the drive component.

[0006] As a preferred technical solution of the present invention: the heat-conducting component includes a circuit board, a heat-conducting cover is fixedly installed on the top of the circuit board, a connecting wire is installed on the top of the circuit board, a resistor is installed on the outer wall of the connecting wire, a circuit breaker is fixedly installed on the outer wall of the connecting wire, and an air duct is fixedly installed on the top of the heat-conducting cover.

[0007] As a preferred technical solution of the present invention: the driving assembly includes a support plate, the inner cavity of the support plate is rotatably connected to a fixed bin, the inner cavity of the fixed bin is rotatably connected to a rotating rod, the outer wall of the rotating rod is fixedly equipped with an impeller, the outer wall of the rotating rod is fixedly equipped with a rotating disk, the outer wall of the rotating disk is fixedly equipped with a fixed plate, the inner wall of the fixed plate is fixedly equipped with a trigger switch, the inner cavity of the rotating disk is movably sleeved with a support spring, the outer wall of the support spring is fixedly equipped with a counterweight, the outer wall of the rotating rod is fixedly equipped with a driving gear, the outer wall of the support plate is fixedly equipped with a generator, the power output shaft of the generator is fixedly equipped with a driven gear, and the outer wall of the fixed bin is provided with an exhaust groove.

[0008] As a preferred technical solution of the present invention: the air intake assembly includes an air intake cylinder, the inner cavity of the air intake cylinder is movably sleeved with a piston rod, the outer wall of the piston rod is fixedly equipped with a piston plate, the outer wall of the piston rod is rotatably connected with a pull rod, the outer wall of the air intake cylinder is fixedly equipped with an air intake pipe, the outer wall of the air intake pipe is fixedly equipped with a No. 1 partition, the outer wall of the No. 1 partition is rotatably connected with a rotating door, the outer wall of the air intake pipe is fixedly equipped with an air guide cylinder, the inner wall of the air guide cylinder is fixedly equipped with a No. 2 partition, and the outer wall of the No. 2 partition is rotatably connected with a rotating plate.

[0009] As a preferred technical solution of the present invention: the inner cavity of the air duct is communicated with the inner cavity of the heat conductive cover, the circuit board is electrically connected to the power battery, and the control main board is electrically connected to the storage battery and the radiator and the heating plate respectively.

[0010] As a preferred technical solution of the present invention: the outer wall diameter of the impeller is equal to the inner wall diameter of the fixed bin, the outer wall of the driving gear and the outer wall of the driven gear are meshed with each other, and the generator is electrically connected to the storage battery.

[0011] As a preferred technical solution of the present invention: the outer wall of the support spring away from the counterweight block is connected to the outer wall of the fixed plate, and the support spring is made of high carbon steel, and the trigger switch is electrically connected to the control main board.

[0012] As a preferred technical solution of the present invention: the inner cavity of the air intake cylinder is connected to the inner cavity of the air intake pipe, the outer wall diameter of the piston plate matches the inner wall diameter of the air intake cylinder, and the outer wall of the pull rod away from one end of the piston rod is rotatably connected to the outer wall of the rotating disk.

[0013] As a preferred technical solution of the present invention: the inner cavity of the air cylinder is connected to the inner cavity of the air intake pipe, the rotating plate is installed on one side of the top of the second partition, and the rotating door is installed on the side of the first partition close to the air cylinder.

[0014] A battery balancing method of a battery balancing device comprises the following steps:

[0015] S1: During normal use of the power battery, the power battery needs to be voltage balanced and temperature balanced. During voltage balanced, the excess electric energy inside the power battery is transferred to the resistor through the circuit board, so that the outer wall of the resistor continuously generates heat. Then, the air in the inner cavity of the heat-conducting cover can be heated by the resistor, so that the temperature of the air in the inner cavity of the heat-conducting cover increases, and the hot air moves upward, so that the hot air is continuously released to the inner cavity of the fixed compartment through the air duct;

[0016] S2: The impeller is driven by the hot air through the rotating rod arranged in the inner cavity of the fixed bin and the impeller arranged on the outer wall of the rotating rod, so that the impeller drives the rotating rod to rotate in the inner cavity of the fixed bin. Under the impact of the hot air, the rotating rod rotates in the inner cavity of the fixed bin. When the rotating rod rotates, the driving gear is driven to rotate. In the process of the driving gear rotating, the driven gear is driven. In the process of the driven gear rotating, the generator generates electrical energy, and the electrical energy is stored in the inner cavity of the storage battery.

[0017] S3: The circuit board continuously releases electric energy to the resistor to make it generate heat continuously, thereby achieving voltage balance between adjacent power batteries. When it is necessary to balance the temperature between adjacent power batteries, when the temperature of the power battery is higher than that of the adjacent power battery, the control main board and the storage battery provide electric energy to the radiator, so that the radiator can dissipate heat for the power battery during the rotation process. When it is necessary to increase the temperature of the power battery, the control main board and the storage battery are used to start the heating plate, so that the heating plate can heat the outer wall of the power battery to achieve temperature balance between two adjacent power batteries.

[0018] S4: When the rotating rod is driven, the rotating disk will rotate with the rotation of the rotating rod. During the rotation of the rotating disk, the counterweight will be swung outward. As the temperature of the resistor gradually increases, more hot air will be generated, and the hot air will be continuously released into the inner cavity of the air guide tube, thereby accelerating the rotation speed of the rotating disk, so that the outer wall of the counterweight will contact the trigger switch, so that the trigger switch is triggered. At this time, it can be said that the temperature of the resistor is too high. After the trigger switch is triggered, an electrical signal will be transmitted to the control main board, so that the circuit breaker is started under the action of the control main board, so that the circuit between the resistors is cut off, avoiding the danger caused by the excessive temperature of the resistor, thereby ensuring the normal operation of the resistor;

[0019] S5: During the rotation of the rotating disk, the pull rod will be continuously pulled to swing. Since the outer wall of the pull rod is rotationally connected with the outer wall of the piston rod below, the piston rod continuously reciprocates up and down in the inner cavity of the intake cylinder, thereby continuously drawing the external air into the inner cavity of the heat conductive cover through the intake pipe, so that the air in the inner cavity of the heat conductive cover is continuously heated, thereby better driving the rotating rod, and further better achieving voltage balance and temperature balance of the power battery.

[0020] The present invention has the following beneficial effects:

[0021] 1. The battery balancing device and the battery balancing method can heat the air in the inner cavity of the heat-conductive cover when the resistor consumes electric energy to balance the voltage by means of a heat-conductive cover arranged on the top of the power battery, so that the air expands after being heated, and then enters the inner cavity of the fixed compartment along the air guide pipe, and drives the rotating rod, so that the rotating rod rotates, and then drives the generator to generate electric energy, and uses the electric energy to drive the radiator and the heating plate to achieve heating and heat dissipation of the power battery, thereby achieving temperature balance between the power batteries, avoiding the singleness of using resistors for voltage balance in traditional settings, and better achieving the effect of balancing between the power batteries.

[0022] 2. The battery balancing device and the battery balancing method, by arranging the value turning spring and the counterweight block in the inner cavity of the rotating disk, can realize driving the counterweight block during the rotation of the rotating disk as the rotating disk rotates, so that the support spring is compressed. As the temperature of the resistor continues to rise, it will drive the rotating rod faster and faster, thereby accelerating the rotation of the rotating disk. At this time, under the action of centrifugal force, the outer wall of the counterweight block continuously compresses the support spring until it contacts the trigger switch, thereby starting the circuit breaker switch under the action of the control mainboard to cut off the power to the resistor to prevent its temperature from being too high.

[0023] 3. The battery balancing device and the battery balancing method, through the pull rod arranged on the outer wall of the rotating disk, will drive the pull rod to be pulled continuously during the rotation of the rotating disk, so that the pull rod drives the piston rod to move up and down, drives the piston plate to move up and down continuously, and continuously draws the external air into the heat conductive cover, and then heats the air under the action of the resistor, thereby realizing the driving of the rotating rod, and better realizing the voltage balance and temperature balance of the power battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the power battery structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the control mainboard of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the heat conductive cover of the present invention;

[0028] Figure 5 This is a schematic diagram of the support plate structure of the present invention;

[0029] Figure 6 This is a schematic diagram of the fixed bin structure of the present invention;

[0030] Figure 7 It is a schematic diagram of the structure of the rotating rod of the present invention;

[0031] Figure 8 It is a schematic diagram of the structure of the air intake cylinder of the present invention;

[0032] Fig. 9 It is a schematic diagram of the intake pipe structure of the present invention.

[0033] In the figure: 1. Mounting plate; 2. Power battery; 3. Radiator; 4. Heating plate; 5. Control main board; 6. Storage battery; 7. Heat conduction component; 8. Drive component; 9. Air intake component;

[0034] 701, circuit board; 702, resistor; 703, connecting wire; 704, circuit breaker; 705, heat-conducting cover; 706, air duct;

[0035] 801, support plate; 802, fixed bin; 803, rotating rod; 804, impeller; 805, rotating disk; 806, fixed plate; 807, trigger switch; 808, support spring; 809, counterweight; 8010, driving gear; 8011, generator; 8012, driven gear; 8013, exhaust slot;

[0036] 901. Intake cylinder; 902. Piston rod; 903. Piston plate; 904. Pull rod; 905. Intake pipe; 906. Partition No. 1; 907. Rotating door; 908. Air guide cylinder; 909. Partition No. 2; 9010. Rotating plate. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figure 1 - Fig. 9A battery balancing device comprises a mounting plate 1, a power battery 2 is mounted on the top of the mounting plate 1, a radiator 3 is fixedly mounted on the outer wall of the power battery 2, a heating plate 4 is fixedly mounted on the outer wall of the power battery 2, a control mainboard 5 is fixedly mounted on the top of the power battery 2, a storage battery 6 is fixedly mounted on the top of the power battery 2, a heat conducting component 7 is arranged on the top of the power battery 2, a driving component 8 is arranged on the top of the power battery 2, and an air intake component 9 is arranged on the outer wall of the driving component 8.

[0039] In the above structure, by setting the power battery 2 on the top of the mounting plate 1, and the radiator 3 and the storage battery 6 respectively installed on the outer wall of the power battery 2, the radiator 3 can dissipate heat and cool the outer wall of the power battery 2, and the heating plate 4 can heat and keep the outer wall of the power battery 2 warm, so that the temperature between two adjacent power batteries 2 can be balanced, thereby ensuring a better working state of the power battery 2.

[0040] In a preferred embodiment: the heat-conducting component 7 includes a circuit board 701, a heat-conducting cover 705 is fixedly installed on the top of the circuit board 701, a connecting wire 703 is installed on the top of the circuit board 701, a resistor 702 is installed on the outer wall of the connecting wire 703, a circuit breaker 704 is fixedly installed on the outer wall of the connecting wire 703, and an air duct 706 is fixedly installed on the top of the heat-conducting cover 705.

[0041] In the above structure, by installing a circuit board 701 on the top of the power battery 2, and providing a connecting wire 703 and a resistor 702 on the top of the circuit board 701, in order to maintain voltage balance between two adjacent power batteries 2, a passive balancing method is often adopted, and the energy in the power battery 2 itself is released to the outside in the form of heat under the action of the connecting wire 703 and the resistor 702, thereby achieving voltage balance between two adjacent power batteries 2.

[0042] In a preferred embodiment: the driving assembly 8 includes a support plate 801, the inner cavity of the support plate 801 is rotatably connected to a fixed bin 802, the inner cavity of the fixed bin 802 is rotatably connected to a rotating rod 803, the outer wall of the rotating rod 803 is fixedly equipped with an impeller 804, the outer wall of the rotating rod 803 is fixedly equipped with a rotating disk 805, the outer wall of the rotating disk 805 is fixedly equipped with a fixed plate 806, the inner wall of the fixed plate 806 is fixedly equipped with a trigger switch 807, the inner cavity of the rotating disk 805 is movably sleeved with a support spring 808, the outer wall of the support spring 808 is fixedly equipped with a counterweight 809, the outer wall of the rotating rod 803 is fixedly equipped with a driving gear 8010, the outer wall of the support plate 801 is fixedly equipped with a generator 8011, the power output shaft of the generator 8011 is fixedly equipped with a driven gear 8012, and the outer wall of the fixed bin 802 is provided with an exhaust groove 8013.

[0043] In the above structure, through the fixed chamber 802 connected to rotate in the inner cavity of the support plate 801 and the rotating rod 803 set in the inner cavity of the fixed chamber 802, the air heated in the inner cavity of the heat conductive cover 705 is introduced into the inner cavity of the fixed chamber 802 under the action of the air guide tube 706, so that the air impacts the outer wall of the impeller 804, and then the impeller 804 is driven, so that the rotating rod 803 rotates, and in the process of the rotating rod 803 rotating, the driving gear 8010 drives the outer wall of the driven gear 8012, so that the generator 8011 generates electrical energy under the action of the rotation of the driven gear 8012.

[0044] In a preferred embodiment: the air intake assembly 9 includes an air intake cylinder 901, the inner cavity of the air intake cylinder 901 is movably sleeved with a piston rod 902, the outer wall of the piston rod 902 is fixedly equipped with a piston plate 903, the outer wall of the piston rod 902 is rotatably connected to a pull rod 904, the outer wall of the air intake cylinder 901 is fixedly equipped with an air intake pipe 905, the outer wall of the air intake pipe 905 is fixedly equipped with a No. 1 partition plate 906, the outer wall of the No. 1 partition plate 906 is rotatably connected to a rotating door 907, the outer wall of the air intake pipe 905 is fixedly equipped with an air guide cylinder 908, the inner wall of the air guide cylinder 908 is fixedly equipped with a No. 2 partition plate 909, and the outer wall of the No. 2 partition plate 909 is rotatably connected to a rotating plate 9010.

[0045] In the above structure, by setting the piston rod 902 in the inner cavity of the air intake cylinder 901 and the piston plate 903 installed on the outer wall of the piston rod 902, the pull rod 904 can be driven to rotate during the rotation of the rotating disk 805, so that the pull rod 904 pulls the piston rod 902 to move up and down in the inner cavity of the piston rod 902, and the piston plate 903 moves up and down in the inner cavity of the air intake cylinder 901, so that the external air is drawn into the inner cavity of the air intake pipe 905 under the action of the air intake pipe 905.

[0046] In a preferred embodiment, the inner cavity of the air duct 706 is connected to the inner cavity of the heat conductive cover 705, the circuit board 701 is electrically connected to the power battery 2, and the control main board 5 is electrically connected to the storage battery 6 and the radiator 3 and the heating plate 4 respectively.

[0047] In the above structure, through the air duct 706 arranged on the top of the heat-conducting cover 705, the hot air in the inner cavity of the heat-conducting cover 705 can be introduced into the inner cavity of the fixed chamber 802 under the action of the air duct 706, and the impeller 804 is driven under the action of the hot air, so that the impeller 804 rotates in the inner cavity of the fixed chamber 802. Since the impeller 804 is directly fixedly installed on the outer wall of the rotating rod 803, the rotating rod 803 can be driven to rotate.

[0048] In a preferred embodiment: the outer wall diameter of the impeller 804 is equal to the inner wall diameter of the fixed chamber 802 , the outer wall of the driving gear 8010 and the outer wall of the driven gear 8012 are meshed with each other, and the generator 8011 is electrically connected to the storage battery 6 .

[0049] In the above structure, by setting the impeller 804 on the outer wall of the rotating rod 803, and making the outer wall of the impeller 804 correspond to the inner cavity of the air duct 706, when the air in the inner cavity of the heat-conducting cover 705 expands upward due to heat, it will enter the inner cavity of the fixed chamber 802 along the inner cavity of the air duct 706, and make the flowing air act on the outer wall of the impeller 804, so as to drive the impeller 804.

[0050] In a preferred embodiment: the outer wall of the support spring 808 away from the counterweight block 809 is connected to the outer wall of the fixed plate 806, and the support spring 808 is made of high carbon steel, and the trigger switch 807 is electrically connected to the control main board 5.

[0051] In the above structure, by setting the counterweight block 809 and the support spring 808 in the inner cavity of the rotating disk 805, during the rotation of the rotating disk 805, the counterweight block 809 will move in the direction away from the center of the rotating disk 805 under the action of centrifugal force, thereby compressing the outer wall of the support spring 808 until the outer wall of the counterweight block 809 contacts the outer wall of the trigger switch 807, thereby triggering the trigger switch 807 and transmitting the electrical signal to the control motherboard 5.

[0052] In a preferred embodiment: the inner cavity of the air intake cylinder 901 is connected to the inner cavity of the air intake pipe 905, the outer wall diameter of the piston plate 903 matches the inner wall diameter of the air intake cylinder 901, and the outer wall of the pull rod 904 away from the end of the piston rod 902 is rotatably connected to the outer wall of the rotating disk 805.

[0053] In the above structure, a piston rod 902 and a piston plate 903 are arranged in the inner cavity of the air intake cylinder 901, and the outer wall of the piston rod 902 is connected to the rotating disk 805 through a pull rod 904, so that the rotating disk 805 can continuously pull the piston rod 902 to reciprocate in the inner cavity of the air intake cylinder 901 during rotation, thereby drawing external air in through the air intake pipe 905 and releasing it into the inner cavity of the heat conductive cover 705.

[0054] In a preferred embodiment: the inner cavity of the air cylinder 908 is connected to the inner cavity of the air inlet pipe 905, the rotating plate 9010 is installed on one side of the top of the second partition 909, and the rotating door 907 is installed on one side of the first partition 906 close to the air cylinder 908.

[0055] In the above structure, by respectively rotating the rotating door 907 connected to the outer wall of the first partition 906 and the rotating plate 9010 connected to the top of the second partition 909, when the piston rod 902 moves upward along the inner cavity of the air intake cylinder 901, the external air will push the rotating door 907 inward, so that the external air enters the air intake pipe 905. When the piston rod 902 moves along the inner cavity of the air intake cylinder 901, the gas in the inner cavity of the air intake pipe 905 will be pushed outward, but at this time the rotating door 907 will be attached to the outer wall of the first partition 906 to prevent the air in the inner cavity of the air intake pipe 905 from escaping outward, and push the rotating plate 9010 upward under the action of the air, so that the rotating plate 9010 leaves the outer wall of the second partition 909, so that the air in the inner cavity of the air intake pipe 905 can be released into the inner cavity of the heat conductive cover 705. After one cycle, the air in the inner cavity of the heat conductive cover 705 is replenished.

[0056] A battery balancing method of a battery balancing device comprises the following steps:

[0057] S1: During normal use of the power battery 2, the power battery 2 needs to be voltage-balanced and temperature-balanced. During voltage-balanced, the excess electric energy inside the power battery 2 is transferred to the resistor 702 through the circuit board 701, so that the outer wall of the resistor 702 continuously generates heat. Then, the air in the inner cavity of the heat-conducting cover 705 can be heated under the action of the resistor 702, so that the temperature of the air in the inner cavity of the heat-conducting cover 705 increases, and the hot air moves upward, so that the hot air is continuously released to the inner cavity of the fixed compartment 802 through the air guide pipe 706;

[0058] S2: By means of the rotating rod 803 arranged in the inner cavity of the fixed chamber 802 and the impeller 804 arranged on the outer wall of the rotating rod 803, the impeller 804 is driven under the action of hot air, so that the impeller 804 drives the rotating rod 803 to rotate in the inner cavity of the fixed chamber 802. Under the impact of the continuous hot air, the rotating rod 803 rotates in the inner cavity of the fixed chamber 802. When the rotating rod 803 rotates, the driving gear 8010 is driven to rotate. During the rotation of the driving gear 8010, the driven gear 8012 is driven. Therefore, during the rotation of the driven gear 8012, the generator 8011 generates electrical energy, and the electrical energy is stored in the inner cavity of the storage battery 6.

[0059] S3: The circuit board 701 continuously releases electric energy to the resistor 702, causing it to continuously generate heat, thereby achieving voltage balancing between adjacent power batteries 2. When it is necessary to balance the temperature between adjacent power batteries 2, when the temperature of the power battery 2 is higher than that of the adjacent power battery 2, the radiator 3 is provided with electric energy under the action of the control main board 5 and the storage battery 6, so that the radiator 3 can dissipate heat for the power battery 2 during the rotation process. When it is necessary to increase the temperature of the power battery 2, the heating plate 4 is started by controlling the main board 5 and the storage battery 6, so that the heating plate 4 can heat the outer wall of the power battery 2, thereby achieving temperature balancing between two adjacent power batteries 2.

[0060] S4: When the rotating rod 803 is driven, the rotating disk 805 will rotate with the rotation of the rotating rod 803. During the rotation of the rotating disk 805, the counterweight 809 will be swung outward. As the temperature of the resistor 702 gradually increases, more hot air will be generated, so that the hot air is continuously released into the inner cavity of the air guide tube 706, thereby accelerating the rotation speed of the rotating disk 805, so that the outer wall of the counterweight 809 contacts the trigger switch 807, so that the trigger switch 807 is triggered. At this time, it can be said that the temperature of the resistor 702 is too high. After the trigger switch 807 is triggered, an electrical signal will be transmitted to the control main board 5, so that the circuit breaker 704 is started under the action of the control main board 5, so that the circuit between the resistors 702 is cut off, avoiding the danger caused by the over-high temperature of the resistor 702, thereby ensuring the normal operation of the resistor 702;

[0061] S5: During the rotation of the rotating disk 805, the pull rod 904 is continuously pulled to swing. Since the outer wall of the pull rod 904 is rotatably connected to the outer wall of the piston rod 902 below, the piston rod 902 continuously reciprocates up and down in the inner cavity of the air intake cylinder 901, thereby continuously drawing external air into the inner cavity of the heat conductive cover 705 through the air intake pipe 905, so that the air in the inner cavity of the heat conductive cover 705 is continuously heated, thereby better driving the rotating rod 803, and further better achieving voltage balance and temperature balance of the power battery 2.

[0062] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery balancing device, comprising a mounting plate (1), characterized in that: A power battery (2) is mounted on the top of the mounting plate (1), a radiator (3) is fixedly mounted on the outer wall of the power battery (2), a heating plate (4) is fixedly mounted on the outer wall of the power battery (2), a control mainboard (5) is fixedly mounted on the top of the power battery (2), a storage battery (6) is fixedly mounted on the top of the power battery (2), a heat conduction component (7) is arranged on the top of the power battery (2), a drive component (8) is arranged on the top of the power battery (2), and an air intake component (9) is arranged on the outer wall of the drive component (8).

2. A battery equalization device according to claim 1, characterized in that: The heat-conducting component (7) comprises a circuit board (701), a heat-conducting cover (705) is fixedly mounted on the top of the circuit board (701), a connecting wire (703) is installed on the top of the circuit board (701), a resistor (702) is installed on the outer wall of the connecting wire (703), a circuit breaker (704) is fixedly mounted on the outer wall of the connecting wire (703), and an air guide tube (706) is fixedly mounted on the top of the heat-conducting cover (705).

3. A battery equalization device according to claim 2, characterized in that: The driving assembly (8) comprises a supporting plate (801), the inner cavity of the supporting plate (801) is rotatably connected to a fixed chamber (802), the inner cavity of the fixed chamber (802) is rotatably connected to a rotating rod (803), the outer wall of the rotating rod (803) is fixedly equipped with an impeller (804), the outer wall of the rotating rod (803) is fixedly equipped with a rotating disk (805), the outer wall of the rotating disk (805) is fixedly equipped with a fixing plate (806), and the inner wall of the fixing plate (806) is fixedly equipped with a trigger switch. The inner cavity of the rotating disk (805) is movably sleeved with a support spring (808), the outer wall of the support spring (808) is fixedly equipped with a counterweight (809), the outer wall of the rotating rod (803) is fixedly equipped with a driving gear (8010), the outer wall of the support plate (801) is fixedly equipped with a generator (8011), the power output shaft of the generator (8011) is fixedly equipped with a driven gear (8012), and the outer wall of the fixed bin (802) is provided with an exhaust groove (8013).

4. A battery equalization device according to claim 3, characterized in that: The air intake assembly (9) includes an air intake cylinder (901), the inner cavity of the air intake cylinder (901) is movably sleeved with a piston rod (902), the outer wall of the piston rod (902) is fixedly equipped with a piston plate (903), the outer wall of the piston rod (902) is rotatably connected to a pull rod (904), the outer wall of the air intake cylinder (901) is fixedly equipped with an air intake pipe (905), the outer wall of the air intake pipe (905) is fixedly equipped with a first partition (906), the outer wall of the first partition (906) is rotatably connected to a rotating door (907), the outer wall of the air intake pipe (905) is fixedly equipped with an air guide cylinder (908), the inner wall of the air guide cylinder (908) is fixedly equipped with a second partition (909), and the outer wall of the second partition (909) is rotatably connected to a rotating plate (9010).

5. The battery equalization device according to claim 2, characterized in that: The inner cavity of the air duct (706) is in communication with the inner cavity of the heat-conducting cover (705), the circuit board (701) is electrically connected to the power battery (2), and the control main board (5) is electrically connected to the storage battery (6) and the radiator (3) and the heating plate (4) respectively.

6. A battery equalization device according to claim 3, characterized in that: The outer wall diameter of the impeller (804) is equal to the inner wall diameter of the fixed bin (802), the outer wall of the driving gear (8010) and the outer wall of the driven gear (8012) are meshed with each other, and the generator (8011) is electrically connected to the storage battery (6).

7. A battery equalization device according to claim 6, characterized in that: The outer wall of the support spring (808) away from the counterweight (809) is connected to the outer wall of the fixed plate (806), and the support spring (808) is made of high carbon steel. The trigger switch (807) is electrically connected to the control main board (5).

8. A battery equalization device according to claim 4, characterized in that: The inner cavity of the air intake cylinder (901) is connected to the inner cavity of the air intake pipe (905), the outer wall diameter of the piston plate (903) matches the inner wall diameter of the air intake cylinder (901), and the outer wall of the pull rod (904) away from the end of the piston rod (902) is rotatably connected to the outer wall of the rotating disk (805).

9. A battery equalization device according to claim 8, characterized in that: The inner cavity of the air guide cylinder (908) is in communication with the inner cavity of the air intake pipe (905), the rotating plate (9010) is installed on one side of the top of the second partition (909), and the rotating door (907) is installed on one side of the first partition (906) close to the air guide cylinder (908).

10. The battery balancing method of the battery balancing device according to claim 9, characterized in that: The following steps are involved: S1: During normal use of the power battery (2), the power battery (2) needs to be voltage-balanced and temperature-balanced. During voltage-balance, the circuit board (701) is used to transfer excess electric energy inside the power battery (2) to the resistor (702), so that the outer wall of the resistor (702) continuously generates heat. Subsequently, the air in the inner cavity of the heat-conducting cover (705) is heated under the action of the resistor (702), so that the temperature of the air in the inner cavity of the heat-conducting cover (705) increases, and the hot air moves upward, so that the hot air is continuously released into the inner cavity of the fixed chamber (802) through the air guide pipe (706); S2: By means of a rotating rod (803) arranged in the inner cavity of the fixed chamber (802) and an impeller (804) arranged on the outer wall of the rotating rod (803), the impeller (804) is driven under the action of hot air, so that the impeller (804) drives the rotating rod (803) to rotate in the inner cavity of the fixed chamber (802). Under the continuous impact of hot air, the rotating rod (803) rotates in the inner cavity of the fixed chamber (802). When the rotating rod (803) rotates, the driving gear (8010) is driven to rotate. During the rotation of the driving gear (8010), the driven gear (8012) is driven. During the rotation of the driven gear (8012), the generator (8011) generates electrical energy, and the electrical energy is stored in the inner cavity of the storage battery (6); S3: The circuit board (701) continuously releases electric energy to the resistor (702) so that the resistor (702) continuously generates heat, thereby achieving voltage balancing between adjacent power batteries (2). When it is necessary to balance the temperature between adjacent power batteries (2), when the temperature of the power battery (2) is higher than that of the adjacent power battery (2), the control main board (5) and the storage battery (6) provide electric energy to the radiator (3), so that the radiator (3) can dissipate heat from the power battery (2) during rotation. When it is necessary to increase the temperature of the power battery (2), the control main board (5) and the storage battery (6) are used to start the heating plate (4), so that the heating plate (4) can heat the outer wall of the power battery (2), thereby achieving temperature balancing between two adjacent power batteries (2); S4: When the rotating rod (803) is driven, the rotating disk (805) rotates with the rotating rod (803). During the rotation of the rotating disk (805), the counterweight (809) is swung outward. As the temperature of the resistor (702) gradually increases, more hot air is generated, and the hot air is continuously released into the inner cavity of the air guide tube (706), thereby increasing the rotation speed of the rotating disk (805), so that the outer wall of the counterweight (809) contacts the trigger switch (807), so that the trigger switch (807) is triggered. At this time, it can be said that the temperature of the resistor (702) is too high. After the trigger switch (807) is triggered, an electrical signal is transmitted to the control mainboard (5), so that the circuit breaker (704) is started under the action of the control mainboard (5), so that the circuit between the resistors (702) is cut off, avoiding the danger caused by the excessive temperature of the resistor (702), thereby ensuring the normal operation of the resistor (702); S5: During the rotation of the rotating disk (805), the pull rod (904) is continuously pulled to swing. Since the outer wall of the pull rod (904) is rotatably connected to the outer wall of the piston rod (902) below, the piston rod (902) continuously reciprocates up and down in the inner cavity of the air intake cylinder (901), thereby continuously drawing external air into the inner cavity of the heat conductive cover (705) through the air intake pipe (905), so that the air in the inner cavity of the heat conductive cover (705) is continuously heated, thereby better driving the rotating rod (803), and further better achieving voltage balance and temperature balance of the power battery (2).

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