Battery constant-temperature formation and capacity grading equipment with energy feedback

Abstract

The utility model discloses battery constant-temperature formation and capacity grading equipment with energy feedback, which comprises a body, a bottom turbulent flow fan, refrigeration equipment, a self-service clamping mechanism, a complete rack, a temperature sensor, a current sensor and a charging and discharging power box, the self-service clamping mechanism is fixedly connected with the whole rack through screws, the bottom turbulent flow fan is used for adjusting the aerodynamic flow direction and promoting circulation of air in the cabinet, the rotating speed set value is calculated by using a linear interpolation method according to the measured current value, and the rotating speed of the cabinet is adjusted by using the rotating speed set value according to the measured current value. The self-service clamping mechanism is applied to control of the bottom turbulent flow fan, accurate control and adjustment are performed according to rotating speed requirements under different current conditions, meanwhile, the self-service clamping mechanism is matched with the partition plate to perform targeted clamping placement on the battery, stability of the battery is ensured, and a current sensor can accurately measure the current value.

Description

Technical Field

[0001] The utility model relates to the technical field of battery constant temperature energy feedback, in particular to a battery constant temperature capacity component device with energy feedback. Background Art

[0002] In the prior art, simple heat conversion is achieved through the single-chip computer board, the driving power board and the auxiliary working power supply in the power chassis. The single-chip computer board is connected to the driving power board, and the single-chip computer board is connected to the PC through the communication interface. The auxiliary working power supply is connected to the cooling fan. The reference announcement number is: CN 204793084 U, and the name is: Soft-pack lithium-ion battery constant temperature capacity distribution equipment, which reflects the high cost: because the equipment involves multiple components and subsystems, and the constant temperature effect needs to be ensured, the manufacturing and maintenance costs are relatively high; space occupation: in order to maintain the constant temperature effect, components such as insulation cotton and circulating air duct system are arranged inside the equipment, resulting in the equipment occupying a large space, which limits the scale and production capacity of the equipment; temperature uniformity: although the circulating air duct system is used to achieve uniform temperature distribution, there may still be temperature differences in large-scale production, affecting the comparability of the final test data.

[0003] The utility model proposes a solution to the above-mentioned shortcomings: when the capacity is divided and formed, a current of 30A is sent, and the speed of the cooling fan is 2850 / MIN, a current of 20A is sent, and the speed of the cooling fan is 1900 / MIN, a current of 10A is sent, and the speed of the cooling fan is 1000 / MIN, and the transmission current is different and the transfer speed is different, and the lowest is 10A 1000 rpm. The self-service clamping mechanism cooperates with the partition to clamp and place the battery in a targeted manner, and at the same time cooperates with the device to charge and discharge the battery through the control of the charge and discharge power box during the capacity division and formation. According to the requirements of the capacity division and formation, the control charge and discharge power box will process the battery according to specific charge and discharge conditions and modes to complete energy feedback. Summary of the invention

[0004] In order to solve the above-mentioned technical problems, the utility model provides a battery constant temperature capacity component device with energy feedback.

[0005] The technical solution of the utility model is implemented as follows: a battery constant temperature capacity device with energy feedback, including a body, a bottom spoiler fan, a refrigeration device, a power block, a middle air return port, a middle air inlet, a bottom air return port, a bottom air outlet, a self-service clamping mechanism, a whole frame, a temperature sensor, a current sensor, and a charging and discharging power supply box;

[0006] A temperature sensor is arranged on the left side of the exterior of the body, a current sensor is arranged on the right side of the exterior of the body, a power block is arranged on the right side of the exterior of the body, a charging and discharging power supply box is arranged on the right side of the exterior of the body, a whole rack is arranged on the body, a bottom spoiler fan is arranged at the middle bottom of the whole rack, a self-service clamping mechanism is arranged inside the whole rack, the self-service clamping mechanism includes a battery rack, a partition, and a clamping plate, a bottom air outlet is arranged in the middle of the bottom of the whole rack, bottom return air outlets are arranged on both sides of the bottom air outlet, and a refrigeration device is arranged at the top of the exterior of the whole rack;

[0007] The whole rack is in a cube shape, and the fixed column in the middle of the whole rack divides the two side areas to place the self-service clamping mechanism, and the self-service clamping mechanism is connected and fixed to the whole rack by screws. The top of the outside of the whole rack is provided with a refrigeration device, which is fixedly connected to the screws through a gap connection and cooperates with the middle air return port and the middle air inlet;

[0008] A clamping plate is disposed outside the upper surface of the battery rack, a partition is disposed outside the upper surface of the clamping plate, the partition is fixedly connected to the clamping plate through holes, and the clamping plate is fixed to the battery rack by welding.

[0009] Furthermore, the middle air return port and the middle air inlet are electrically connected via the temperature sensor.

[0010] Furthermore, the bottom spoiler fan is used to adjust the aerodynamic flow direction and operates through electrical connection.

[0011] Furthermore, the bottom air return port and the bottom air outlet are used for the current sensor to cooperate with the actual constant temperature adjustment operation through electrical connection operation.

[0012] Furthermore, the bottom spoiler fan speed is regulated by controlling the bottom spoiler fan speed through a current sensor, and a microcontroller or an embedded system is used to associate the feedback signal of the current sensor with the speed of the cooling fan through calculation.

[0013] The specific presets are:

[0014] Current (A): 10 20 30

[0015] Speed ​​(MIN): 1000 1900 2850

[0016] According to the above relationship, when the current is 10A, the speed of the bottom spoiler fan is set to 1000 / MIN; when the current is 20A, the speed is set to 1900 / MIN; when the current is 30A, the speed is set to 2850 / MIN;

[0017] This relationship is programmed into the control system. By reading the data of the current sensor and using the interpolation method to determine the corresponding speed setting value, the linear interpolation method is used to perform linear interpolation between 10A and 30A based on the measured current value to calculate the speed setting value.

[0018] Calculation process:

[0019] According to the linear interpolation method, the speed setting value is calculated by linearly interpolating the measured current value between 10A and 30A using the known current-speed data points (10A, 1000 / MIN) and (30A, 2850 / MIN);

[0020] The preset measured current value is I, and the corresponding speed setting value R needs to be calculated;

[0021] First, calculate the scaling factor k for current values ​​I between 10A and 30A:

[0022] k = (I - 10) / (30 - 10)

[0023] Then, the speed setting value R is calculated by linear interpolation using the proportional factor k:

[0024] R = 1000 + k * (2850 - 1000)

[0025] According to the actual measured current value, linear interpolation is performed between 10A and 30A to obtain the corresponding speed setting value;

[0026] Used to calculate the speed setting value corresponding to any current value between 10A and 30A. When using this formula for calculation, ensure that the measured current value is between 10A and 30A;

[0027] If the measured current value is 15A, calculate according to the above formula:

[0028] R = 1000 + (15 - 10) * (2850 - 1000) / (30 - 10)

[0029] = 1000 + 5 * 1850 / 20

[0030] = 1000 + 925

[0031] = 1925

[0032] Therefore, when the current is 15A, the speed setting value calculated by linear interpolation is 1925 / MIN. Similarly, this formula is used to calculate the speed setting values ​​for other current values ​​between 10A and 30A.

[0033] Furthermore, in the above-mentioned entire calculation scheme, the self-service clamping mechanism cooperates with the partition to clamp and place the battery in a targeted manner to ensure that the battery can be stably placed in the cabinet and match the speed adjustment of the cooling fan. Through this clamping method, the current sensor can accurately measure the current value of the battery;

[0034] At the same time, in the capacity division formation process, the battery is charged and discharged through the charge and discharge power box. According to the measured current value, the speed setting value is calculated using the linear interpolation method, and the air circulation and cooling effect inside the cabinet are adjusted by controlling the speed of the bottom spoiler fan.

[0035] Therefore, the current-speed correlation in the entire calculation scheme and the cooperation of the self-clamping mechanism are all to achieve precise control and energy feedback regulation of the battery during capacity division and formation, by measuring the current value, calculating the speed setting value, and applying it to the control of the bottom spoiler fan. Beneficial Effects

[0036] The technical solution of the utility model realizes a battery constant temperature capacity device with energy feedback through components and control sources, in which the device includes a body, a bottom spoiler fan, a refrigeration device, a power block, a middle air return port, a middle air inlet, a bottom air return port, a bottom air outlet, a self-service clamping mechanism, a whole frame, a temperature sensor and a current sensor component;

[0037] During operation, the temperature sensor is responsible for monitoring the temperature changes inside the cabinet and feeding the data back to the control system. The current sensor measures the current of the battery and transmits the data to the control system. According to the measured current value, a linear interpolation is performed between 10A and 30A to calculate the corresponding speed setting value. A PWM signal is generated through a microcontroller or embedded system to adjust the speed of the bottom spoiler fan to reach the preset speed setting value.

[0038] At the same time, the self-service clamping mechanism is connected and fixed to the whole rack by screws to ensure that the battery is stably placed in the whole rack. The bottom spoiler fan is used to adjust the aerodynamic flow direction and promote the circulation of air inside the cabinet. The refrigeration equipment is adjusted by the cooling effect. According to the data feedback from the temperature sensor and the instructions of the control system, the operating state is adjusted to maintain the constant temperature requirement;

[0039] In actual operation, the speed setting value is calculated using the linear interpolation method according to the measured current value, and is applied to the control of the bottom spoiler fan. The programming of this correlation relationship enables precise control and adjustment according to the speed requirements under different current conditions. At the same time, the self-service clamping mechanism cooperates with the partition to clamp and place the battery in a targeted manner to ensure the stability of the battery and enable the current sensor to accurately measure the current value.

[0040] The beneficial effect of the technical solution of the utility model is that it realizes a battery constant temperature capacity division equipment with energy feedback. By accurately controlling the rotation speed of the bottom spoiler fan, adjusting the refrigeration equipment and achieving stable clamping and placement of the battery, the equipment can perform battery capacity division in a constant temperature environment and maintain stable and precise temperature control, thereby improving the efficiency and quality of the capacity division process.

[0041] Working principle:

[0042] After initialization, start the battery constant temperature and capacity device, including turning on the power block and refrigeration equipment, and setting the initial parameters. Then, the battery is clamped and placed in a targeted manner through the self-service clamping mechanism to ensure that the battery is stably placed in the entire rack. The temperature sensor monitors the temperature changes inside the cabinet and feeds the data back to the control system. At the same time, the current sensor measures the current size of the battery and transmits the data to the control system.

[0043] According to the measured current value, a corresponding speed setting value is calculated by linear interpolation between 10A and 30A, a PWM signal is generated by a microcontroller or an embedded system, and the speed of the bottom spoiler fan is controlled by adjusting the duty cycle. According to the calculated speed setting value, the duty cycle of the PWM signal is adjusted so that the speed of the bottom spoiler fan reaches a preset value;

[0044] The bottom spoiler fan adjusts the air flow direction to help realize the circulation of air inside the cabinet. The refrigeration equipment adjusts the operating status according to the data feedback from the temperature sensor and the instructions of the control system to maintain the constant temperature requirement.

[0045] By continuously monitoring the current and temperature data, feedback control is performed to adjust the rotation speed, cooling effect and other parameters to maintain the stability and accuracy of the constant temperature and capacity composition process. When the set time or conditions are reached, the constant temperature and capacity composition process of the battery is completed;

[0046] The above working principle can realize automatic control and adjustment of the battery constant temperature capacity-forming equipment with energy feedback, ensure that the battery is capacity-formed in a constant temperature environment, and realize a stable and precise constant temperature capacity-forming process. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a schematic diagram of a three-dimensional structure of a battery constant temperature capacity conversion device with energy feedback in an embodiment of the utility model;

[0048] Figure 2 This is one of the three-dimensional structural diagrams of a battery constant temperature capacity conversion device with energy feedback in an embodiment of the utility model;

[0049] Figure 3It is a bottom view schematic diagram of a battery constant temperature fractionation device with energy feedback in an embodiment of the utility model;

[0050] Figure 4 It is a schematic diagram of a three-dimensional view of the whole frame of a battery constant temperature capacity-splitting device with energy feedback in an embodiment of the utility model;

[0051] Figure 5 It is a schematic diagram of a three-dimensional view of a self-service clamping mechanism of a battery constant temperature fractionation device with energy feedback in an embodiment of the utility model;

[0052] Figure 6 It is a schematic diagram of an enlarged view of part A of a battery constant temperature capacity conversion device with energy feedback in an embodiment of the utility model.

[0053] 1-main body; 2-bottom spoiler fan; 3-refrigeration equipment; 4-power block; 5-middle return air outlet; 6-middle air inlet; 7-bottom return air outlet; 8-bottom air outlet; 9-self-service clamping mechanism; 901-battery rack; 902-partition; 903-clamping plate; 10-whole rack; 11-temperature sensor; 12-current sensor; 13-charging and discharging power supply box. DETAILED DESCRIPTION

[0054] In order to make the purpose and advantages of the utility model more clearly understood, the utility model is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0055] The preferred implementation methods of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these implementation methods are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0056] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0057] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0058] See also Figure 1-Figure 6 As shown, a battery constant temperature and capacity device with energy feedback includes: a body 1, a bottom spoiler fan 2, a refrigeration device 3, a power block 4, a middle air return port 5, a middle air inlet 6, a bottom air return port 7, a bottom air outlet 8, a self-service clamping mechanism 9, a whole frame 10, a temperature sensor 11, a current sensor 12, and a charge and discharge power supply box 13;

[0059] A temperature sensor 11 is arranged on the left side of the outside of the body 1, a current sensor 12 is arranged on the right side of the outside of the body 1, a power block 4 is arranged on the right side of the outside of the body 1, a charging and discharging power supply box 13 is arranged on the right side of the outside of the body 1, a whole frame 10 is arranged on the body 1, a bottom spoiler fan 2 is arranged at the middle bottom of the whole frame 10, a self-service clamping mechanism 9 is arranged inside the whole frame 10, and the self-service clamping mechanism 9 includes a battery rack 901, a partition 902, and a clamping plate 903, a bottom air outlet 8 is arranged in the middle of the bottom of the whole frame 10, bottom return air outlets 7 are arranged on both sides of the bottom air outlet 8, and a refrigeration device 3 is arranged on the top of the outside of the whole frame 10;

[0060] The whole rack 10 is in a cube shape, and the fixed column in the middle of the whole rack 10 divides the two side areas to place the self-service clamping mechanism 9, and the self-service clamping mechanism 9 is connected and fixed to the whole rack 10 by screws. The refrigeration device 3 is arranged on the top of the outside of the whole rack 10 and is fixedly connected with the screws through a gap connection and cooperates with the middle return air port 5 and the middle air inlet 6;

[0061] A clamping plate 903 is disposed on the outside of the upper surface of the battery rack 901 , a partition plate 902 is disposed on the outside of the upper surface of the clamping plate 903 , the partition plate 902 is fixedly connected to the clamping plate 903 via holes, and the clamping plate 903 is fixed to the battery rack 901 by welding.

[0062] Specifically, the middle air return port 5 and the middle air inlet 6 are electrically connected to each other through the temperature sensor 11 for operation.

[0063] Specifically, the bottom spoiler fan 2 is used to adjust the aerodynamic flow direction and operates through electrical connection.

[0064] Specifically, the bottom air return port 7 and the bottom air outlet 8 are used for the current sensor 12 to cooperate with the actual constant temperature adjustment operation through electrical connection operation.

[0065] Specifically, the rotation speed of the bottom spoiler fan 2 is regulated by controlling the rotation speed of the bottom spoiler fan 2 through the current sensor 12. A microcontroller or an embedded system is used to associate the feedback signal of the current sensor 12 with the rotation speed of the cooling fan through calculation.

[0066] The specific presets are:

[0067] Current A: 10, 20, 30

[0068] Speed ​​MIN: 1000, 1900, 2850

[0069] According to the above relationship, when the current is 10A, the speed of the bottom spoiler fan 2 is set to 1000 / MIN; when the current is 20A, the speed is set to 1900 / MIN; when the current is 30A, the speed is set to 2850 / MIN;

[0070] This association is programmed into the control system, by reading the data of the current sensor 12 and using the interpolation method to determine the corresponding speed setting value, using the linear interpolation method, linearly interpolating between 10A and 30A according to the measured current value to calculate the speed setting value;

[0071] Calculation process:

[0072] According to the linear interpolation method, the speed setting value is calculated by linearly interpolating the measured current value between 10A and 30A using the known current-speed data points (10A, 1000 / MIN) and (30A, 2850 / MIN);

[0073] The preset measured current value is I, and the corresponding speed setting value R needs to be calculated;

[0074] First, calculate the scaling factor k for current values ​​I between 10A and 30A:

[0075] k = (I - 10) / (30 - 10)

[0076] Then, the speed setting value R is calculated by linear interpolation using the proportional factor k:

[0077] R = 1000 + k * (2850 - 1000)

[0078] According to the actual measured current value, linear interpolation is performed between 10A and 30A to obtain the corresponding speed setting value;

[0079] Used to calculate the speed setting value corresponding to any current value between 10A and 30A. When using this formula for calculation, ensure that the measured current value is between 10A and 30A;

[0080] If the measured current value is 15A, calculate according to the above formula:

[0081] R = 1000 + (15 - 10) * (2850 - 1000) / (30 - 10)

[0082] = 1000 + 5 * 1850 / 20

[0083] = 1000 + 925

[0084] = 1925

[0085] Therefore, when the current is 15A, the speed setting value calculated by linear interpolation is 1925 / MIN. Similarly, this formula is used to calculate the speed setting values ​​for other current values ​​between 10A and 30A.

[0086] Specifically, in the above-mentioned entire calculation scheme, the self-service clamping mechanism 9 cooperates with the partition 902 to clamp and place the battery in a targeted manner to ensure that the battery can be stably placed in the cabinet and match the speed adjustment of the refrigeration fan. Through this clamping method, the current sensor 12 can accurately measure the current value of the battery.

[0087] At the same time, in the capacity division formation process, the battery is charged and discharged by the charge and discharge power supply box 13, and the speed setting value is calculated using the linear interpolation method according to the measured current value, and the air circulation and cooling effect inside the cabinet are adjusted by controlling the speed of the bottom spoiler fan 2;

[0088] Therefore, the current-speed correlation in the entire calculation scheme and the cooperation of the self-service clamping mechanism 9 are both to achieve precise control and adjustment of the battery during capacity division and formation, by measuring the current value, calculating the speed setting value, and applying it to the control of the bottom spoiler fan 2.

[0089] In one embodiment, the battery charging step-down to discharge step-up in the charging and discharging power supply box is performed in a topology structure or a DCDC circuit to form a feedback current to the ACDC power supply and then to the AC power grid. The purpose of this technical solution in reality is to achieve energy saving, and the AC power grid includes 220V and 380V.

[0090] So far, the technical solution of the utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings, but it is easy for those skilled in the art to understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Without departing from the principle of the utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the utility model.

[0091] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and rules of the utility model shall be included in the protection scope of the utility model.

Claims

1. A battery constant temperature capacity conversion device with energy feedback, characterized in that: It includes a main body (1), a bottom spoiler fan (2), a refrigeration device (3), a power block (4), a middle air return port (5), a middle air inlet (6), a bottom air return port (7), a bottom air outlet (8), a self-service clamping mechanism (9), a whole rack (10), a temperature sensor (11), a current sensor (12), and a charge-discharge power supply box (13); A temperature sensor (11) is arranged on the left side of the exterior of the body (1), a current sensor (12) is arranged on the right side of the exterior of the body (1), a power block (4) is arranged on the right side of the exterior of the body (1), a charging and discharging power box (13) is arranged on the right side of the exterior of the body (1), the body (1) is provided with a whole frame (10), a bottom spoiler fan (2) is arranged at the middle bottom of the whole frame (10), a self-service clamping mechanism (9) is arranged inside the whole frame (10), the self-service clamping mechanism (9) comprises a battery rack (901), a partition (902), and a clamping plate (903), a bottom air outlet (8) is arranged in the middle of the bottom of the whole frame (10), bottom return air outlets (7) are arranged on both sides of the bottom air outlet (8), and a refrigeration device (3) is arranged at the top of the exterior of the whole frame (10); The whole frame (10) is in the shape of a cube. The fixed column in the middle of the whole frame (10) divides the two side areas into two areas for arranging the self-service clamping mechanism (9). The self-service clamping mechanism (9) is connected and fixed to the whole frame (10) by screws. The top of the outside of the whole frame (10) is provided with a refrigeration device (3) which is fixedly connected to the screws by gap connection and cooperates with the middle air return port (5) and the middle air inlet port (6). A clamping plate (903) is arranged on the outside of the upper surface of the battery rack (901), a partition (902) is arranged on the outside of the upper surface of the clamping plate (903), the partition (902) and the clamping plate (903) are fixedly connected via holes, and the clamping plate (903) and the battery rack (901) are fixed by welding.

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