Storage battery charging and discharging management device

Abstract

The utility model provides a storage battery charging and discharging management device, and belongs to the technical field of storage battery charging and discharging. Comprising a shell, a monitoring control device, a discharging device and a charging device are arranged in the shell, and the monitoring control device, the discharging device and the charging device are distributed in an upper-middle-lower mode; the three partition plates are arranged in the shell and distributed in an upper-middle-lower mode, and the partition plate in the middle and the partition plate at the bottom are hollow; the monitoring control device, the discharging device and the charging device are arranged on the three partition plates respectively. According to the utility model, the cooling pipe, the conveying pipe, the return pipe and the heat exchanger are arranged to form a cooling liquid circulating system for accurate cooling, so that heat generated by charging or discharging can be effectively taken away, frequent triggering of overheat protection is avoided, and stable, safe and continuous charging and discharging processes are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of battery charging and discharging, in particular to a battery charging and discharging management device. Background Art

[0002] The battery charge and discharge management device is a device used to monitor and control the battery charge and discharge process. Its purpose is to ensure that the battery works in a safe and efficient state. When the battery needs to be charged, the device provides electrical energy through the power supply system, which is adjusted by the resistor box and added to the battery for charging. The single-chip control system monitors the current, voltage and other parameters in the charging process in real time, and adjusts the resistance value of the resistor box as needed to achieve constant current or constant voltage charging. When the battery needs to be discharged, the device connects the battery to the load (such as an electric heating element) through an automatic switching circuit to form a discharge circuit. The single-chip control system will also monitor the parameters during the discharge process and stop discharging when the set conditions are met to avoid damage to the battery due to excessive discharge.

[0003] At present, during the use of existing battery charge and discharge management devices, because the charging devices usually contain high-power components, such as large-capacity capacitors, high-power transformers and high-power rectifier components, these high-power components consume a lot of energy when working and generate heat in a concentrated manner, and the charging process usually takes a long time, especially for large-capacity batteries. The components in the charging device continue to work during this period, and heat will continue to accumulate. In order to prevent the charging device from being damaged due to overheating, an overheating protection mechanism is usually set. When the temperature exceeds the set value, the protection circuit will operate and interrupt the charging process. Although this can protect the charging device, frequent overheating protection will affect the normal charging of the battery, resulting in discontinuous charging, affecting the charging efficiency and the performance of the battery. Therefore, the present application provides a battery charge and discharge management device to meet the needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a battery charge and discharge management device to solve the problem that during the use of the existing battery charge and discharge management device, the charging device generates heat during operation, thereby frequently triggering overheat protection and affecting normal charging.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions.

[0006] A battery charge and discharge management device comprises: a shell, in which a monitoring and control device, a discharge device and a charging device are arranged, and the monitoring and control device, the discharge device and the charging device are distributed in the upper, middle and lower positions; three partitions are arranged in the shell, distributed in the upper, middle and lower positions, and the middle partition and the bottom partition are both hollow; the monitoring and control device, the discharge device and the charging device are arranged on the three partitions respectively; a heat exchanger is arranged at the bottom of the inner cavity of the shell; a delivery pipe, one end of which is connected to the heat exchanger and the other end passes through the middle partition; a reflux pipe, one end of which is arranged on the heat exchanger and the other end passes through the middle partition; two cooling pipes, which are respectively arranged in the bottom partition and the middle partition; one end of the cooling pipe is connected to the delivery pipe and the other end is connected to the reflux pipe.

[0007] It also includes: two heat absorption components, which are respectively arranged on the middle partition and the bottom partition. The heat absorption components include: a heat conducting sheet, which is sleeved on the surface of the cooling tube.

[0008] It also includes: a strip frame, which is arranged on the partition; a heat sink, one end of which is arranged on the heat conductive sheet, and the other end of which passes through the partition and is connected to the strip frame.

[0009] It also includes: a phase change material, which is arranged in the strip frame; the strip frame is made of copper or aluminum.

[0010] It also includes: a movable door, which is movably arranged on the shell; an air inlet, which is arranged at the bottom of the movable door; and an exhaust port, which is arranged at the top of the shell.

[0011] It also includes: a plurality of fans, which are arranged at the bottom of the inner cavity of the shell.

[0012] It also includes: a plurality of through holes, which are respectively arranged on the three partitions.

[0013] When the discharge device is set to operate, the middle cooling pipe operates to cool the discharge device.

[0014] When the charging device is set to operate, the cooling pipe at the bottom operates to cool the charging device.

[0015] The delivery pipe and the return pipe are respectively provided with control valves for controlling the flow of liquid.

[0016] Compared with the prior art, the utility model has at least the following beneficial effects.

[0017] In the above scheme, by setting cooling pipes, delivery pipes, reflux pipes and heat exchangers, a coolant circulation system is formed to perform precise cooling, which can effectively take away the heat generated by charging or discharging, avoid frequent triggering of overheating protection, and ensure that the charging and discharging process is stable and safe.

[0018] By setting up phase change materials, heat can be absorbed and phase change can occur when the temperature rises, thereby playing a buffering role and preventing a sharp rise in temperature. In combination with heat sinks and thermal conductive sheets, heat can be dissipated outward from the heat generating area more quickly and cooled. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of a battery charge and discharge management device.

[0020] Figure 2 This is a schematic diagram of the fan structure.

[0021] Figure 3 Schematic diagram of the partition structure.

[0022] Figure 4 Schematic diagram of the cooling pipe structure.

[0023] Figure 5 It is a schematic diagram of the local structure of the heat sink.

[0024] Figure 6 Schematic diagram of the local structure of phase change material.

[0025] [Reference Signs]

[0026] 1. Shell; 2. Exhaust port; 3. Movable door; 4. Air inlet; 5. Monitoring and control device; 6. Discharge device; 7. Partition; 8. Charging device; 9. Fan; 10. Through hole; 11. Delivery pipe; 12. Reflux pipe; 13. Heat exchanger; 14. Cooling pipe; 15. Heat absorption component; 151. Bar frame; 152. Heat sink; 153. Heat conductive sheet; 154. Phase change material.

[0027] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0028] The following is a detailed description of a battery charge and discharge management device provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0029] like Figure 1 - Figure 6 As shown, an embodiment of the utility model provides a battery charge and discharge management device, comprising: a shell 1, in which a monitoring and control device 5, a discharge device 6 and a charging device 8 are arranged, and the monitoring and control device 5, the discharge device 6 and the charging device 8 are distributed in the upper, middle and lower positions; three partitions 7 are arranged in the shell 1, and are distributed in the upper, middle and lower positions, and the middle partition 7 and the bottom partition 7 are both hollow; the monitoring and control device 5, the discharge device 6 and the charging device 8 are respectively arranged on the three partitions 7; a heat exchanger 13 is arranged at the bottom of the inner cavity of the shell 1; a delivery pipe 11, one end of which is connected to the heat exchanger 13, and the other end passes through the middle partition 7; a reflux pipe 12, one end of which is arranged on the heat exchanger 13, and the other end passes through the middle partition 7; two cooling pipes 14, which are respectively arranged in the bottom partition 7 and the middle partition 7; one end of the cooling pipe 14 is connected to the delivery pipe 11, and the other end is connected to the reflux pipe 12.

[0030] By distributing the monitoring and control device 5, the discharge device 6 and the charging device 8 in the upper, middle and lower positions, the charging device 8 will generate a lot of heat during operation, especially the high-power components contained therein, such as large-capacity capacitors, high-power transformers and high-power rectifier components, etc., which are placed at the bottom. On the one hand, it is close to the heat exchanger 13 at the bottom of the shell 1, which is convenient for efficient heat dissipation through the cooling system composed of the cooling pipe 14 and the heat exchanger 13 at the bottom. On the other hand, it is spatially isolated from the discharge device 6 and the monitoring and control device 5 above, reducing the thermal interference of the heat generated during charging on the other two devices; the discharge device 6 is in the middle, and when it generates heat during operation, the cooling pipe 14 in the middle partition 7 can cool it; and the monitoring and control device 5 is at the top, relatively far away from the main heat source (charging device 8 and discharge device 6), which can reduce the influence of temperature on its monitoring and control accuracy.

[0031] It also includes: two heat absorbing components 15, which are respectively arranged on the middle partition 7 and the bottom partition 7, and the heat absorbing component 15 includes: a heat conducting sheet 153, which is sleeved on the surface of the cooling tube 14. By arranging the heat conducting sheet 153, it has good thermal conductivity, and the heat of the bar frame 151 is transferred to the cooling tube 14, and the coolant in the cooling tube 14 takes away the heat to achieve cooling.

[0032] It also includes: a bar frame 151, which is arranged on the partition 7; a heat sink 152, one end of which is arranged on the heat conducting sheet 153, and the other end of which penetrates the partition 7 and is connected to the bar frame 151. The heat sink 152 is provided to increase the heat dissipation area. After the bar frame 151 absorbs heat, the heat sink 152 dissipates the heat to the surrounding air. When the fan 9 is running, the air inside the housing 1 will flow, and the flowing air will take away the heat.

[0033] It also includes: a phase change material 154, which is arranged in the strip frame 151; the strip frame 151 is made of copper or aluminum. By arranging the phase change material 154, when the charging device 8 or the discharging device 6 works, heat is generated, so that the temperature of the surrounding environment rises, and the phase change material 154 can absorb a large amount of heat to avoid local overheating. By using copper or aluminum for the strip frame 151, copper and aluminum are both excellent thermal conductive materials and can efficiently conduct heat.

[0034] It also includes: a movable door 3, which is movably arranged on the housing 1; an air inlet 4, which is arranged at the bottom of the movable door 3; and an exhaust port 2, which is arranged at the top of the housing 1. By arranging the air inlet 4 and the exhaust port 2, automatic convection is formed, and the relatively low temperature external air will enter the housing 1 from the bottom air inlet 4, and when passing through the heating components such as the charging device 8 and the discharging device 6, it can absorb heat, increase its own temperature and become hot air. Due to its relatively small density, the hot air will naturally flow upward and finally be discharged from the top exhaust port 2; the air inlet 4 and the exhaust port 2 are detachably provided with filter screens to prevent external impurities from entering the housing 1.

[0035] The invention also includes: a plurality of fans 9, which are arranged at the bottom of the inner cavity of the housing 1. By arranging the fans 9, when the fans 9 are running, the relatively static air inside the housing 1 can be urged to flow, forming forced convection, accelerating the transfer and dissipation of heat, and the fans 9 can be selectively turned on according to different situations.

[0036] The device further comprises: a plurality of through holes 10, which are respectively arranged on the three partitions 7. By arranging the through holes 10, when the fan 9 is running to cause the air in the inner cavity of the housing 1 to flow, the air flows upward through the through holes 10 and takes away the heat, and finally is discharged through the exhaust port 2; if the temperature is not high, the fan 9 is running, the cooling pipe 14 can stop running, and the heat is dissipated through the through holes 10 in cooperation with the fan 9.

[0037] When the discharge device 6 is set to operate, the middle cooling pipe 14 operates to cool the discharge device 6. When the discharge device 6 is in operation, the middle cooling pipe 14 specifically cools the discharge device 6, thereby achieving precise temperature control and avoiding waste of resources.

[0038] When the charging device 8 is set to operate, the cooling pipe 14 at the bottom operates to cool the charging device 8. When the charging device 8 is in operation, the cooling pipe 14 at the bottom operates to cool the charging device 8, which can effectively prevent the charging device 8 from frequently triggering the overheating protection mechanism due to excessive temperature.

[0039] The delivery pipe 11 and the return pipe 12 are respectively provided with control valves for controlling the flow of liquid. By providing the control valves, when cooling the charging device 8 or the discharging device 6, the operation of the other cooling pipe 14 can be avoided, and the flow of the coolant can be controlled according to the situation to ensure that the coolant plays the greatest heat dissipation role where it is most needed.

[0040] The technical solution provided by the utility model is that during charging, the charging device 8 is running. When the temperature exceeds a preset value, the coolant in the heat exchanger 13 is transported to the cooling pipe 14 at the bottom through the delivery pipe 11 and the control valve. The heat generated by the charging device 8 is absorbed by the phase change material 154 in the bar frame 151. The heat is transferred to the cooling pipe 14 through the heat sink 152 and the heat conductive sheet 153 to absorb the heat. At the same time, the fan 9 is running to suck the external air into the housing 1, and the hot air is discharged from the exhaust port 2 through the through hole 10. The coolant after absorbing the heat returns to the heat exchanger 1 through the return pipe 12. 3 for cooling; during discharge, the discharge device 6 operates. When the temperature exceeds the preset value, the coolant in the heat exchanger 13 is transported to the middle cooling pipe 14 through the transport pipe 11 and the control valve. The heat generated by the discharge device 6 is absorbed by the phase change material 154 in the bar frame 151. The heat is transferred to the cooling pipe 14 through the heat sink 152 and the heat conductive sheet 153 to absorb the heat. At the same time, the fan 9 operates to inhale the external air into the housing 1, and the hot air is discharged from the exhaust port 2 through the through hole 10. The coolant after absorbing the heat returns to the heat exchanger 13 through the return pipe 12 for cooling.

[0041] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A battery charge and discharge management device, characterized in that: include: A housing (1), wherein a monitoring and control device (5), a discharge device (6) and a charging device (8) are arranged in the housing (1), and the monitoring and control device (5), the discharge device (6) and the charging device (8) are arranged in an upper, middle and lower position; Three partitions (7) are arranged in the housing (1) and are distributed in the upper, middle and lower parts, and the middle partition (7) and the bottom partition (7) are both hollow; The monitoring and control device (5), the discharging device (6) and the charging device (8) are respectively arranged on the three partitions (7); A heat exchanger (13) is arranged at the bottom of the inner cavity of the shell (1); A delivery pipe (11), one end of which is connected to the heat exchanger (13) and the other end of which passes through the middle partition (7); A return pipe (12), one end of which is arranged on the heat exchanger (13), and the other end of which passes through the middle partition (7); Two cooling pipes (14) are respectively arranged in the bottom partition (7) and in the middle partition (7); One end of the cooling pipe (14) is connected to the delivery pipe (11), and the other end is connected to the return pipe (12).

2. The battery charge and discharge management device according to claim 1, characterized in that: Also includes: Two heat absorbing components (15) are respectively arranged on the middle partition (7) and the bottom partition (7), and the heat absorbing components (15) include: The heat conducting sheet (153) is sleeved on the surface of the cooling tube (14).

3. The battery charge and discharge management device according to claim 2, characterized in that: Also includes: A strip frame (151) arranged on the partition (7); A heat sink (152) has one end disposed on the heat conducting sheet (153) and the other end passing through the partition (7) and connected to the strip frame (151).

4. The battery charge and discharge management device according to claim 3, characterized in that: Also includes: A phase change material (154) is arranged in the strip frame (151); The strip frame (151) is made of copper or aluminum.

5. The battery charge and discharge management device according to claim 1, characterized in that: Also includes: A movable door (3) movably arranged on the housing (1); An air inlet (4) is arranged at the bottom of the movable door (3); An exhaust port (2) is arranged at the top of the housing (1).

6. The battery charge and discharge management device according to claim 1, characterized in that: Also includes: A plurality of fans (9) are arranged at the bottom of the inner cavity of the outer shell (1).

7. The battery charge and discharge management device according to claim 6, characterized in that: Also includes: A plurality of through holes (10) are respectively arranged on the three partition plates (7).

8. The battery charge and discharge management device according to claim 1, characterized in that: When the discharge device (6) is set to operate, the middle cooling pipe (14) operates to cool the discharge device (6).

9. The battery charge and discharge management device according to claim 1, characterized in that: When the charging device (8) is set to operate, the cooling pipe (14) at the bottom operates to cool the charging device (8).

10. The battery charge and discharge management device according to claim 1, characterized in that: The delivery pipe (11) and the return pipe (12) are respectively provided with control valves for controlling the flow of liquid.

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