Electricity changing cabinet battery heating device based on electromagnetic induction

Abstract

According to the electromagnetic induction-based battery heating device of the battery changing cabinet, the electromagnetic heating coil is laid on the inner wall of the battery bin, electromagnetic induction heating is directly carried out on the battery, the problem of low efficiency caused by the fact that heat is firstly transmitted to air and then acts on the battery is solved, the temperature rise time is remarkably shortened, and the heating efficiency of the battery changing cabinet is improved. The power consumption is greatly reduced, and the operation cost is reduced. Compared with a mode of using a heating pad, the electromagnetic heating coil of the device does not occupy the position of a heat dissipation hole, heat dissipation is not hindered by a heating part when the battery bin needs to be dissipated in summer, good heat dissipation performance of the battery bin is guaranteed, it is guaranteed that the battery is located in a proper temperature range all the time, and the service life of the battery bin is prolonged. The battery management system can better meet the temperature requirement during charging and discharging, and the problems that the battery cannot be charged, the recovery time and the recharging time are prolonged and the like due to low temperature are effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of battery heating technology, and in particular to a battery heating device for a battery swapping cabinet based on electromagnetic induction. Background Technology

[0002] As the user base of electric two-wheelers continues to expand, especially with the high demands on range and charging efficiency from frequent usage scenarios such as food delivery and express delivery, the demand for smart battery swapping will continue to grow. Battery swapping cabinets not only store a certain number of lithium batteries but also have built-in charging capabilities. Users can place depleted batteries into the cabinet and then retrieve fully charged batteries to extend the vehicle's range.

[0003] The battery management system (BMS) of a battery swapping cabinet has specific temperature requirements during charging and discharging. When the system detects a temperature below 0 degrees Celsius, it will automatically activate a protection function, preventing the battery from continuing to charge and extending the recovery and recharging times. Therefore, when using a battery swapping cabinet in low-temperature environments, it is necessary to pay attention to battery temperature management to ensure that the battery operates within a suitable temperature range. Currently, most battery swapping cabinets are equipped with heaters and temperature sensors. When the temperature inside the battery compartment is detected to be below zero degrees Celsius, the heater will automatically activate; once the temperature reaches above five degrees Celsius, the heating function will automatically shut off, thus ensuring that the battery is always in optimal operating condition.

[0004] Common heating methods include: 1) Using a high-power heater to transfer heat to the battery compartment, raising the air temperature inside and thus the battery temperature. This method is inefficient, has a long heating time, and consumes a large amount of electricity, increasing operating costs. 2) Using heating pads, which are attached to the inner wall of the battery compartment and controlled to heat the battery. This method also consumes a lot of electricity, and in summer, when the battery compartment needs cooling, the heating pads reduce the number of ventilation holes, hindering timely heat dissipation. Therefore, it is necessary to design a low-power, fast-heating battery compartment heating method that does not affect heat dissipation. Utility Model Content

[0005] The purpose of this invention is to provide a battery heating device for a battery swapping cabinet based on electromagnetic induction, which solves the problems of high energy consumption, slow heating, and high operating costs in the existing technology.

[0006] This utility model provides a battery heating device for a battery swapping cabinet based on electromagnetic induction, including a controller and multiple battery compartments installed inside the battery swapping cabinet. Each battery compartment has a cavity for accommodating batteries. Each battery compartment has an electromagnetic heating coil laid circumferentially inside. A temperature sensor is fixedly installed on each battery compartment. The on / off switch of the electromagnetic heating coil and the temperature sensor are both electrically connected to the controller.

[0007] Furthermore, the battery compartment is equipped with a protective cover, and the electromagnetic heating coil is disposed between the protective cover and the battery compartment.

[0008] Furthermore, the temperature sensor is fixedly installed at the closed end of the battery compartment, and the inside of the temperature sensor extends to the bottom inside of the protective cover.

[0009] Furthermore, the electromagnetic heating coil is spirally wound between the protective cover and the battery compartment.

[0010] Furthermore, the electromagnetic heating coil is laid in an S-shape between the protective cover and the battery compartment.

[0011] Furthermore, the outer side of the protective cover is connected to the battery compartment by screws.

[0012] Furthermore, the outer side of the protective cover is provided with partitions at intervals for abutting against the inner wall of the battery compartment.

[0013] Furthermore, the partition and the protective cover are integrally formed.

[0014] Furthermore, the protective cover is made of insulating material.

[0015] Furthermore, the electromagnetic heating coil is made of a material that is resistant to high temperatures and has high conductivity.

[0016] The beneficial effects of this technical solution are as follows: This device uses electromagnetic heating coils laid on the inner wall of the battery compartment to directly heat the battery through electromagnetic induction. This avoids the inefficiency caused by heat being transferred to the air first and then acting on the battery, significantly shortening the heating time and greatly reducing energy consumption. Compared with the use of heating pads, the electromagnetic heating coils of this device do not occupy the space of the heat dissipation holes. When the battery compartment needs to dissipate heat in summer, the heating components will not obstruct heat dissipation, ensuring good heat dissipation performance of the battery compartment. This ensures that the battery is always within a suitable temperature range, allowing the battery management system to better cope with temperature requirements during charging and discharging, and effectively avoiding problems such as the battery being unable to charge due to low temperatures and longer recovery and recharging times. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is an anatomical view of a single battery compartment structure in this utility model.

[0019] Figure 2 This is a schematic diagram of the arrangement structure of the electromagnetic heating coil in Embodiment 1 of this utility model.

[0020] Figure 3 This is a schematic diagram of the arrangement structure of the electromagnetic heating coil in Embodiment 2 of this utility model.

[0021] Explanation of reference numerals in the attached diagram: 1-Battery compartment, 2-Electromagnetic heating coil, 3-Protective cover, 4-Battery body, 5-Temperature sensor. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example 1

[0026] like Figures 1-2 As shown, this utility model provides a battery heating device for a battery swapping cabinet based on electromagnetic induction, including a controller and multiple battery compartments 1 installed inside the battery swapping cabinet. Each battery compartment 1 has a cavity for accommodating batteries, and a protective cover 3 is installed inside the cavity. The outer side of the protective cover 3 is connected to the battery compartment 1 by screws. A battery body 4 is detachably installed inside the protective cover 3. A charging interface for charging the battery body 4 extends to the bottom of the protective cover 3, allowing the battery body 4 to be directly plugged into the charging interface when inserted into the protective cover 3. An electromagnetic heating coil 2 is circumferentially laid between the protective cover 3 and the battery compartments. In this embodiment, the electromagnetic heating coil is spirally wound between the protective cover 3 and the battery compartment 1.

[0027] A temperature sensor 5 is fixedly installed at the closed end of the battery compartment 1, with the inside of the temperature sensor 5 extending to the bottom inside of the protective cover 3. The on / off switch of the electromagnetic heating coil and the temperature sensor 5 are both electrically connected to the controller.

[0028] In this embodiment, the protective cover 3 is made of insulating material, and the electromagnetic heating coil is made of a material that is resistant to high temperature and has high conductivity.

[0029] To prevent the battery from squeezing the electromagnetic heating coil 2, a partition is provided at intervals on the outside of the protective cover 3 to abut against the inner wall of the battery compartment 1. The partition is integrally formed with the protective cover 3.

[0030] Example 2

[0031] like Figure 2 As shown, the difference between this embodiment and embodiment 1 is that the electromagnetic heating coil is laid in an S-shape between the protective cover 3 and the battery compartment 1.

[0032] Example 3

[0033] The difference between this embodiment and the above embodiment is that: multiple heat transfer holes are arranged on the protective cover 3, which can transfer heat from the space between the battery compartment 1 and the protective cover 3 to the inside of the protective cover 3 under low temperature conditions, and can also transfer heat from the inside of the protective cover 3 to the space between the battery compartment 1 and the protective cover 3 under high temperature conditions.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A battery heating device for a battery swapping cabinet based on electromagnetic induction, characterized in that, The device includes a controller and multiple battery compartments installed inside the battery swapping cabinet. Each battery compartment has a cavity for accommodating batteries. Each battery compartment has an electromagnetic heating coil laid out circumferentially inside. A temperature sensor is fixedly installed on each battery compartment. The on / off switch of the electromagnetic heating coil and the temperature sensor are both electrically connected to the controller.

2. The battery heating device for a battery swapping cabinet based on electromagnetic induction according to claim 1, characterized in that, The battery compartment is equipped with a protective cover, and the electromagnetic heating coil is located between the protective cover and the battery compartment.

3. The battery heating device for a battery swapping cabinet based on electromagnetic induction according to claim 2, characterized in that, The temperature sensor is fixedly installed at the closed end of the battery compartment, and the inside of the temperature sensor extends to the bottom inside of the protective cover.

4. The battery heating device for a battery swapping cabinet based on electromagnetic induction according to claim 2, characterized in that, The electromagnetic heating coil is spirally wound between the protective cover and the battery compartment.

5. The battery heating device for a battery swapping cabinet based on electromagnetic induction according to claim 2, characterized in that, The electromagnetic heating coil is laid in an S-shape between the protective cover and the battery compartment.

6. The battery heating device for a battery swapping cabinet based on electromagnetic induction according to claim 2, characterized in that, The outer side of the protective cover is connected to the battery compartment by screws.

7. The battery heating device for a battery swapping cabinet based on electromagnetic induction according to claim 2, characterized in that, The outer side of the protective cover is provided with partitions at intervals for abutting against the inner wall of the battery compartment.

8. The battery heating device for a battery swapping cabinet based on electromagnetic induction according to claim 7, characterized in that, The partition and the protective cover are integrally formed.

9. The battery heating device for a battery swapping cabinet based on electromagnetic induction according to claim 2 or 7, characterized in that, The protective cover is made of insulating material.

10. The battery heating device for a battery swapping cabinet based on electromagnetic induction according to claim 1, characterized in that, The electromagnetic heating coil is made of a material that is resistant to high temperatures and has high conductivity.

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