A battery replacement cabinet system with constant temperature air flow circulation in a charging bin

Abstract

The application discloses a battery replacement cabinet system with constant-temperature airflow circulation in charging compartments, which comprises a cabinet body, a plurality of battery compartment groups arranged in the cabinet body, a plurality of battery compartments in each battery compartment group, a plurality of constant-temperature channels for connecting the battery compartments, a heating cavity, a plurality of air passage intervals in each constant-temperature channel, a plurality of temperature monitoring modules arranged in the battery compartments, and a plurality of air valves arranged between adjacent air passage intervals. The temperature monitoring modules are used for monitoring the temperature in the battery compartments and controlling the opening and closing of the corresponding air valves. The application controls the constant-temperature airflow flow path in the cabinet body, so that each battery compartment in the battery replacement cabinet is in a relatively stable and balanced temperature state, the battery replacement cabinet obtains a good charging environment, and the energy consumption is reduced and the waste of heat is reduced.

Description

Technical Field

[0001] This invention relates to the field of battery swapping cabinet technology, and in particular to a battery swapping cabinet system with constant temperature airflow circulation in the charging compartment. Background Technology

[0002] Battery swapping cabinets are common charging devices for portable power banks. Their charging efficiency is affected by ambient temperature, especially in winter when cold environments may prevent batteries from charging properly inside the cabinet. Furthermore, most battery swapping cabinets currently lack heating functions; direct heating via heaters installed inside the battery compartment results in uneven heat distribution, making it difficult to maintain a stable temperature. Temperature control is challenging, and excessively high temperatures can damage components. Heat is also easily dissipated, leading to significant energy waste. Ultimately, they fail to create a suitable charging environment and waste energy. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, the present invention provides a battery swapping cabinet system with constant temperature airflow circulation in the charging compartment. By controlling the constant temperature airflow path in the cabinet, the battery compartments in the battery swapping cabinet are kept in a relatively stable and balanced temperature state, so that the battery swapping cabinet obtains a good charging environment and reduces energy consumption and heat waste.

[0004] Technical Solution: To achieve the above objectives, the present invention provides a battery swapping cabinet system with constant temperature airflow circulation within the charging compartment, comprising a cabinet body, wherein a plurality of battery compartment groups are arranged within the cabinet body; each battery compartment group comprises a plurality of battery compartments arranged vertically; the plurality of battery compartments are connected to each other through constant temperature channels; a heating chamber is included, wherein the outlet of the heating chamber is connected to the air inlet of the plurality of constant temperature channels; the constant temperature channels comprise a plurality of ventilation sections, the plurality of ventilation sections being correspondingly arranged with the plurality of battery compartments; adjacent ventilation sections are connected to each other through ventilation valves; a temperature monitoring module is provided within each battery compartment for monitoring the temperature within the compartment, thereby controlling the opening and closing of the corresponding ventilation valves.

[0005] Furthermore, an adjustment control valve is provided at the connection point between the ventilation section and the corresponding battery compartment; the temperature monitoring module control signal is connected to the adjustment control valve.

[0006] Furthermore, the regulating control valve is located at the inner end of the battery compartment, and an air outlet is provided on the side wall of the battery compartment near its battery insertion port, at which an air extraction device is installed; the temperature monitoring module's control signal is connected to the air extraction device. Furthermore, the air outlets of the multiple battery compartments and the air outlet of the constant temperature channel are all connected to a mixing channel, which is connected to the heating chamber via a suction heating device.

[0007] Furthermore, the mixing channel is connected to the outside atmosphere through an air inlet and an air outlet, and a fan is installed at both the air inlet and the air outlet.

[0008] Furthermore, the mixing channel includes a preheating chamber and an exhaust chamber, which are separated by a vertical partition. The preheating chamber and the exhaust chamber are connected through a mesh at the top of the vertical partition. The air inlet, air outlet, and the exhaust end of the constant temperature channel are all connected to the exhaust chamber. The air outlets of the multiple battery compartments are all connected to the preheating chamber, and the bottom end of the preheating chamber is connected to the heating chamber.

[0009] Furthermore, the air inlet is located at the top of the exhaust chamber, and the air outlet is located at the bottom of the exhaust chamber; the air inlet is aligned with the mesh; the air outlet of the constant temperature channel is located on one side of the air inlet and the mesh.

[0010] Furthermore, the air vents of the multiple battery compartments are arranged vertically within the preheating chamber.

[0011] Furthermore, the fans at the air inlet and air outlet are set to rotate at the same speed; the suction capacity of the suction heating device is set to be equal to the sum of the suction capacities of the multiple suction devices.

[0012] Furthermore, the heating sequence of the multiple battery compartments in each group of battery compartments is as follows: heating from the bottom layer to the top layer, specifically including the following process:

[0013] A1. Turn on the fans at the air inlet and outlet, and at the same time turn on the suction heating device, the regulating control valve of the bottom battery compartment of each battery compartment group, and the air extraction device.

[0014] A2. The temperature inside the battery compartment is monitored by a temperature monitoring module. The temperature is compared to a preset temperature threshold range, and the corresponding venting valve, regulating control valve, and suction device are controlled accordingly. A first threshold range is preset when a battery is inserted in the compartment; a second threshold range is preset when no battery is inserted. The endpoint values ​​of the first threshold range are higher than the endpoint values ​​of the second threshold range. Based on these two threshold ranges, the ventilation control logic is as follows:

[0015] When no batteries are inserted in the chamber, when the temperature inside the chamber is lower than the lower end of the second threshold range, the regulating control valve and the air extraction device of the chamber are opened simultaneously; when the temperature inside the chamber reaches the upper end of the second threshold range, the regulating control valve and the air extraction device of the chamber are closed simultaneously.

[0016] When a battery is inserted in the chamber, when the temperature inside the chamber is lower than the lower end of the first threshold range, the regulating control valve and the air extraction device of the chamber are opened simultaneously; when the temperature inside the chamber reaches the lower end of the first threshold range, the vent valve connecting to the upper layer is opened; when the temperature inside the chamber reaches the upper end of the first threshold range, the regulating control valve and the air extraction device of the chamber are closed simultaneously.

[0017] A3. The battery compartment is heated layer by layer according to the ventilation control logic in A2.

[0018] Beneficial effects: The battery swapping cabinet system with constant temperature airflow circulation in the charging compartment of the present invention has at least the following advantages:

[0019] 1. Layer-by-layer heating is achieved through temperature control, which allows each chamber to gradually reach the threshold range during the initial heating stage after startup, thus avoiding waste of temperature.

[0020] 2. By adjusting the flow of constant temperature air in each compartment, the temperature inside the compartment is maintained within a certain threshold range, while avoiding unnecessary continuous heating that would waste energy.

[0021] 3. By distinguishing between the states inside the compartment where batteries are inserted and those where they are not inserted, different threshold ranges are set for each state to ensure the rational utilization of constant temperature airflow.

[0022] 4. By adding a mixed flow channel, the working status of each airflow power device is coordinated to ensure constant pressure in each chamber of the cabinet and ensure dual circulation of internal and external airflow; waste heat can be put into the circulation for reuse, and the gas drawn in from the outside can be preheated, which can appropriately reduce the energy consumption required for heating and improve the utilization rate of heat. Attached Figure Description

[0023] Appendix Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention;

[0024] Appendix Figure 2 This is a schematic cross-sectional view of the underlying structure according to an embodiment of the present invention;

[0025] Appendix Figure 3 This is a side sectional view of the battery compartment structure according to an embodiment of the present invention;

[0026] Appendix Figure 4 This is a schematic diagram of a mixing channel structure according to an embodiment of the present invention. Detailed Implementation

[0027] The invention will now be further described with reference to the accompanying drawings.

[0028] As attached Figure 1-4The battery swapping cabinet system with constant temperature airflow circulation in the charging compartment includes a cabinet 1, and a plurality of battery compartment groups 2 are arranged inside the cabinet 1; the battery compartment groups 2 include a plurality of battery compartments 21, which are arranged vertically; the plurality of battery compartments 21 are connected to each other through constant temperature channels 4.

[0029] It also includes a heating chamber 3, whose outlet 31 is connected to the air inlets of multiple constant temperature channels 4; the constant temperature channel 4 includes several ventilation sections 41, which are correspondingly arranged with multiple battery compartments 21; adjacent ventilation sections 41 are connected by ventilation valves 5. Since heat loss is inevitable during airflow transmission, constant temperature in this solution does not mean constant at a certain temperature value, but rather constant within a certain temperature range. Through heating by the heating chamber, the airflow entering the constant temperature channel is maintained within a certain temperature range, thereby maintaining a good charging environment temperature after the airflow enters each battery compartment.

[0030] An adjustment control valve 7 is provided at the connection between the ventilation section 41 and the corresponding battery compartment 21.

[0031] The regulating control valve 7 is located at the inner end of the battery compartment 21. The battery compartment 21 has an air outlet on its side wall near the battery insertion port, and an air extraction device 8 is provided at the air outlet.

[0032] Based on the above structure, each battery compartment 21 in each battery compartment group 2 is heated layer by layer from the bottom up. This solution involves extracting gas into the heating chamber, heating it to a suitable temperature within the chamber, and then delivering the heated airflow into each battery compartment through a constant-temperature channel to heat the battery compartment. The constant-temperature airflow preferentially reaches the ventilation area corresponding to the battery compartment, then passes through the regulating control valve into the corresponding battery compartment, filling the entire charging compartment before being discharged from the outlet. For each battery compartment, the opening and closing of the regulating control valve controls whether the constant-temperature airflow can enter the compartment, while the extraction device acts as the airflow drive module for that compartment. Therefore, the synchronous opening and closing of both allows for the start and stop of heating of the corresponding battery compartment.

[0033] Once the preset temperature threshold is reached inside the compartment, the ventilation valve connecting to the upper layer is opened, allowing the constant temperature airflow to rise along the constant temperature channel to the upper ventilation area, thereby heating the upper battery compartment. This process is repeated layer by layer.

[0034] Example 1:

[0035] The air outlets of the multiple battery compartments 21 and the air outlet of the constant temperature channel 4 are all connected to the mixing channel 9, which is connected to the heating chamber 3 through the suction heating device 10.

[0036] Since the heat from the constant-temperature airflow cannot be fully absorbed and utilized after heating, the airflow discharged from the battery compartment retains its residual heat. The airflow from the battery compartment and the constant-temperature channel is then fed into the mixing channel for recirculation in the heating chamber. The airflow passes through the suction heating device for heating before entering the heating chamber for distribution. A temperature sensor can be added to the air inlet of the suction heating device. By sensing the temperature difference between the drawn-in gas and the preset temperature, the heating temperature can be automatically adjusted, enabling the recycling of residual heat, reducing the required heating temperature, and thus reducing the energy consumption for heating.

[0037] The mixing channel 9 is connected to the outside atmosphere through the air inlet 91 and the air outlet 92, and a fan is provided at both the air inlet 91 and the air outlet 92.

[0038] The control logic for each airflow drive module is as follows:

[0039] The fans at the air inlet 91 and air outlet 92 are set to the same rotation speed; the suction capacity of the suction heating device 10 is set to be equal to the sum of the suction capacities of the multiple suction devices 8. This maintains a balanced pressure in each chamber of the cabinet.

[0040] Based on the above structure, the specific airflow control method includes the following process:

[0041] A1. Turn on the fans at the air inlet 91 and air outlet 92, and at the same time turn on the suction heating device 10, the regulating control valve 7 of the bottom battery compartment 21 of each battery compartment group 2, and the air extraction device 8.

[0042] In addition, a temperature monitoring module 6 is provided inside the battery compartment 21 to monitor the temperature inside the compartment, thereby controlling the opening and closing of the corresponding vent valve 5; furthermore, the temperature monitoring module 6 also controls the signal connected to the regulating control valve 7 and the air extraction device 8.

[0043] A2. The temperature inside the battery compartment 21 is monitored by the temperature monitoring module 6. The temperature inside the compartment is compared with a preset temperature threshold range, and the opening and closing of the corresponding vent valve 5, regulating control valve 7 and air extraction device 8 are controlled respectively. When a battery is inserted in the compartment, a first threshold range is preset. When no battery is inserted in the compartment, a second threshold range is preset. The endpoint values ​​of the first threshold range are higher than the endpoint values ​​of the second threshold range.

[0044] When no battery is inserted, there is no need to maintain a high temperature. However, if no heating is applied, the temperature inside the compartment will be too low. When the battery is inserted and then heated, the temperature rise will be too slow. Therefore, in order to avoid wasting heat and to ensure that the desired temperature is reached quickly after the battery is inserted, a relatively low threshold range is set for the battery compartment when no battery is inserted. This allows the battery compartment to be maintained in a relatively moderate temperature range without consuming too much heat, and to reach the desired temperature more quickly.

[0045] Within the two threshold ranges, the lower value is the preset optimal temperature value, while the higher value is the over-temperature warning value. Excessively high temperatures can also affect battery charging.

[0046] Based on the two threshold ranges, the ventilation control logic is as follows:

[0047] When no battery is inserted in the chamber, when the temperature inside the chamber is lower than the lower end of the second threshold range, the regulating control valve 7 and the air extraction device 8 of the chamber are opened simultaneously; when the temperature inside the chamber reaches the upper end of the second threshold range, the regulating control valve 7 and the air extraction device 8 of the chamber are closed simultaneously.

[0048] When a battery is inserted in the chamber, when the temperature inside the chamber is lower than the lower end of the first threshold range, the regulating control valve 7 and the air extraction device 8 of the chamber are opened simultaneously; when the temperature inside the chamber reaches the lower end of the first threshold range, the ventilation valve 5 connecting to the upper layer is opened; when the temperature inside the chamber reaches the upper end of the first threshold range, the regulating control valve 7 and the air extraction device 8 of the chamber are closed simultaneously.

[0049] The vent valve follows the aforementioned opening logic only upon each power-on. Once opened, it remains open until the entire heating system is shut down. Subsequent temperature control within the compartment is achieved solely through the regulation of control valve 7 and the extraction device 8. When the temperature reaches the over-temperature warning value, the corresponding compartment's control valve 7 and extraction device 8 are closed, isolating the battery compartment from the constant-temperature airflow system. Natural cooling gradually lowers the compartment temperature until it falls below the preset optimal temperature. Then, control valve 7 and extraction device 8 are reopened, allowing constant-temperature airflow through the compartment. This cycle repeats to achieve a closed-loop temperature control logic.

[0050] Furthermore, during continuous ventilation, as the temperature inside the chamber gradually increases from the lower end of the threshold range to the higher end, the gas flow rate inside the chamber can be gradually increased by adjusting the suction force of the suction device 8. This allows a small amount of constant-temperature airflow to be utilized and quickly put into circulation, preventing the battery compartment at the bottom from heating up too quickly. This avoids frequent starting and stopping of the control valve 7 and the suction device 8, thus extending the service life of the equipment. Also, since the equipment generally consumes the most power at startup, this also saves some energy.

[0051] A3. The battery compartment is heated layer by layer according to the ventilation control logic in A2.

[0052] Example 2:

[0053] The mixing channel 9 includes a preheating chamber 93 and an exhaust chamber 94, which are separated by a vertical partition 95. The preheating chamber 93 and the exhaust chamber 94 are connected through a mesh 96 at the top of the vertical partition 95. The air inlet 91, the air outlet 92, and the air outlet of the constant temperature channel 4 are all connected to the exhaust chamber 94. The air outlets of the multiple battery compartments 21 are all connected to the preheating chamber 93, and the bottom of the preheating chamber 93 is connected to the heating chamber 3.

[0054] The air inlet 91 is located at the top of the exhaust chamber 94, and the air outlet 92 is located at the bottom of the exhaust chamber 94; the air inlet 91 is aligned with the mesh 96; the air outlet of the constant temperature channel 4 is located on one side of the air inlet 91 and the mesh 96.

[0055] Multiple air vents of the battery compartments 21 are arranged vertically within the preheating chamber 93.

[0056] External airflow is drawn into the cabinet and merges with the exhaust gas ejected from the constant temperature channel outlet. The residual heat in the exhaust gas is then blown into the preheating chamber through the mesh 96 by a high-speed airflow. The gas before entering the heating chamber is drawn in by the suction of the suction heating device 10 and sequentially enters the outlets of multiple battery compartments 21, thereby recycling the residual heat of the exhaust gas in each battery compartment. The fan speeds at the inlet 91 and outlet 92 are kept consistent to ensure a constant air pressure in the exhaust chamber. At the same time, the flow rate entering the preheating chamber through the mesh is consistent with the flow rate exiting from the constant temperature channel outlet, thus ensuring a constant air pressure in the heating chamber.

[0057] Optionally, each of the ventilation zones 41 is separated by a partition. The ventilation valve 5 has a ventilation port on the partition and a baffle is hinged at the ventilation port. The baffle is driven to flip and open by a hydraulic cylinder, which is controlled by the temperature inside the chamber fed back by a temperature sensor.

[0058] The temperature monitoring module 6 uses common temperature sensors and other detection components.

[0059] The regulating control valve 7 can be a louvered grille, which controls the airflow by opening and closing the louvers; the exhaust device 8 can be a small fan.

[0060] The mixing channel 9 is located between two adjacent battery compartments 2, and the corresponding heating chamber 3 is located at the bottom of the mixing channel 9.

[0061] The suction heating device 10 can adopt a fan structure with heating function, which heats the airflow while drawing it in.

[0062] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the above principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A battery swapping cabinet system with constant temperature airflow circulation within the charging compartment, characterized in that: Includes a cabinet (1), and the cabinet (1) is provided with several battery compartments (2); The battery compartment group (2) includes several battery compartments (21), which are arranged vertically; the battery compartments (21) are connected to each other through a constant temperature channel (4); The constant temperature channel (4) includes several ventilation sections (41), and the multiple ventilation sections (41) are correspondingly set with the multiple battery compartments (21); It includes a heating chamber (3), which has multiple flow ports (31), and the multiple flow ports (31) are connected one-to-one with the air inlets of the bottom ventilation section (41) of the multiple constant temperature channels (4); The two adjacent ventilation sections (41) are connected by a ventilation valve (5); The battery compartment (21) is equipped with a temperature monitoring module (6) to monitor the temperature inside the compartment and control the opening and closing of the corresponding ventilation valve (5). When the temperature inside the compartment reaches the preset temperature threshold, the ventilation valve (5) connecting to the upper layer is opened, so that the constant temperature airflow rises along the constant temperature channel to the upper ventilation zone (41) to heat the upper battery compartment (21). This process is repeated layer by layer.

2. The battery swapping cabinet system with constant temperature airflow circulation in the charging compartment according to claim 1, characterized in that: A regulating control valve (7) is provided at the connection between the ventilation section (41) and the corresponding battery compartment (21); the temperature monitoring module (6) controls the signal to the regulating control valve (7).

3. The battery swapping cabinet system with constant temperature airflow circulation in the charging compartment according to claim 2, characterized in that: The regulating control valve (7) is located at the inner end of the battery compartment (21). The battery compartment (21) has an air outlet on its side wall near the battery insertion port, and an air extraction device (8) is provided at the air outlet. The temperature monitoring module (6) controls the signal connected to the air extraction device (8).

4. The battery swapping cabinet system with constant temperature airflow circulation in the charging compartment according to claim 3, characterized in that: The air outlets of the multiple battery compartments (21) and the air outlet of the constant temperature channel (4) are all connected to the mixing channel (9), and the mixing channel (9) is connected to the heating chamber (3) through the suction heating device (10).

5. A battery swapping cabinet system with constant temperature airflow circulation in a charging compartment according to claim 4, characterized in that: The mixing channel (9) is connected to the outside atmosphere through the air inlet (91) and the air outlet (92), and a fan is provided at both the air inlet (91) and the air outlet (92).

6. A battery swapping cabinet system with constant temperature airflow circulation in a charging compartment according to claim 5, characterized in that: The mixing channel (9) includes a preheating chamber (93) and an exhaust chamber (94), which are separated by a vertical partition (95). The preheating chamber (93) and the exhaust chamber (94) are connected by a mesh (96) at the top of the vertical partition (95). The air inlet (91), the air outlet (92), and the air outlet of the constant temperature channel (4) are all connected to the exhaust chamber (94). The air outlets of the multiple battery compartments (21) are all connected to the preheating chamber (93), and the bottom of the preheating chamber (93) is connected to the heating chamber (3).

7. A battery swapping cabinet system with constant temperature airflow circulation in a charging compartment according to claim 6, characterized in that: The air inlet (91) is located at the top of the exhaust chamber (94), and the air outlet (92) is located at the bottom of the exhaust chamber (94); the air inlet (91) is aligned with the mesh (96); the air outlet of the constant temperature channel (4) is located on one side of the air inlet (91) and the mesh (96).

8. A battery swapping cabinet system with constant temperature airflow circulation in a charging compartment according to claim 7, characterized in that: The air outlets of the multiple battery compartments (21) are arranged vertically inside the preheating chamber (93).

9. A battery swapping cabinet system with constant temperature airflow circulation in a charging compartment according to claim 8, characterized in that: The fans at the air inlet (91) and air outlet (92) are set to the same rotation speed; the suction capacity of the suction heating device (10) is set to be equal to the sum of the suction capacities of the plurality of suction devices (8).

10. The airflow control method for a battery swapping cabinet system with constant temperature airflow circulation in a charging compartment according to claim 9, characterized in that: The heating sequence of the multiple battery compartments (21) in each group of battery compartments (2) is as follows: heating from the bottom layer to the top layer, specifically including the following process: A1. Open the fans at the air inlet (91) and air outlet (92), and at the same time turn on the suction heating device (10), the regulating control valve (7) of the bottom battery compartment (21) of each battery compartment group (2) and the suction device (8). A2. The temperature inside the battery compartment (21) is monitored by the temperature monitoring module (6). The temperature inside the compartment is compared with the preset temperature threshold range, and the opening and closing of the corresponding ventilation valve (5), regulating control valve (7) and air extraction device (8) are controlled respectively. Among them, when a battery is inserted in the compartment, a first threshold range is preset; when no battery is inserted in the compartment, a second threshold range is preset. The endpoint value of the first threshold range is higher than the endpoint value of the second threshold range. Based on the two threshold ranges, the ventilation control logic is as follows: When no battery is inserted in the chamber, when the temperature inside the chamber is lower than the lower end of the second threshold range, the regulating control valve (7) and the air extraction device (8) of the chamber are opened simultaneously; when the temperature inside the chamber reaches the upper end of the second threshold range, the regulating control valve (7) and the air extraction device (8) of the chamber are closed simultaneously. When a battery is inserted in the chamber, when the temperature inside the chamber is lower than the lower end of the first threshold range, the regulating control valve (7) and the air extraction device (8) of the chamber are opened simultaneously; when the temperature inside the chamber reaches the lower end of the first threshold range, the ventilation valve (5) connecting to the upper layer is opened; when the temperature inside the chamber reaches the upper end of the first threshold range, the regulating control valve (7) and the air extraction device (8) of the chamber are closed simultaneously. A3. The battery compartment is heated layer by layer according to the ventilation control logic in A2.

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