Charging and heating device for storage battery of electric vehicle

Abstract

The utility model discloses an electric vehicle storage battery charging and heating device which comprises a heating module, a temperature sensor arrangement module, an electric energy transmission module, a front heating device plate and a rear heating device plate. The device comprises a lower heating device plate, a peripheral temperature sensor, a central temperature sensor, a motor controller, a power supply plug, a central support, a wire, a temperature control valve, an annular heating ring and a central heating module. The temperature sensor and the motor controller monitor the environment temperature of the storage battery when an electric vehicle user begins to charge, and heat the storage battery during charging, so that the optimal activity temperature of the storage battery is achieved, the charging capacity of the storage battery is improved, and the service life of the electric vehicle is prolonged.

Description

A charging and heating device for electric vehicle batteries Technical Field

[0001] This utility model relates to the field of electric vehicle technology, and more specifically, to an improvement of an electric vehicle battery charging and heating device. Background Technology

[0002] Most electric vehicle batteries on the market use lead-acid batteries, with a charging cycle life of 300 to 350 times. These batteries are susceptible to environmental temperature fluctuations. Battery activity is highest at around 25 degrees Celsius. For example, a typical 60V / 20Ah electric vehicle has a range of 60 kilometers on a full charge. However, during autumn and winter, battery activity decreases due to temperature fluctuations. For every 1°C drop in temperature, the relative capacity decreases by approximately 0.8%. When the temperature drops to around 0 degrees Celsius, the range drops to 48 kilometers. The battery capacity decreases to 80% of its rated capacity, reducing the charging time from 2-3 days to once a day. This significantly reduces the lifespan of the electric vehicle. Maintaining battery activity and increasing charging capacity during charging is a critical challenge in the electric vehicle industry. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides an electric vehicle battery charging heating device that heats the battery during charging to achieve the optimal battery activity temperature, thereby increasing the battery's charging capacity. This solves the problem of how to maintain battery activity and increase battery charging capacity during charging, thus extending the lifespan of the electric vehicle.

[0004] To achieve the advantages of heating the battery during charging to reach the optimal battery activity temperature and improve the battery's charging capacity, the specific technical solution adopted by this utility model is as follows: It includes a battery heating module 1, a temperature sensor arrangement module 2, and a power transmission module 3; the battery heating module 1 includes a front heating device plate 11, a rear heating device plate 12, and a lower heating device plate 13, which are arranged in a U-shape; the temperature sensor arrangement module 2 includes an outer temperature sensor 21 and a central temperature sensor 22; the power transmission module 3 includes a motor controller 31, a power plug 32, a central support 33, wires 34, and a temperature control valve 35.

[0005] The external temperature sensor 21 is used to sense the external temperature of the battery during charging. When the electric vehicle user starts charging, the motor controller 31 detects the temperature of the external temperature sensor 21. When the ambient temperature is below 25 degrees, the motor controller 31 controls the temperature control valve 35 to open, and the DC output terminal of the charger heats the front heating plate 11, the rear heating plate 12, and the lower heating plate 13 to increase the ambient temperature of the battery during charging. When the ambient temperature is above 25 degrees, the motor controller 31 controls the temperature control valve 35 to close, disconnecting the heating tube.

[0006] Compared with the prior art, this utility model provides a charging heating device for electric vehicle batteries, which has the following beneficial effects: the temperature sensor and motor controller monitor the ambient temperature of the battery when the electric vehicle user starts charging, and heat the battery during charging to achieve the optimal battery activity temperature, improve the battery charging capacity, and thus extend the service life of the electric vehicle. Attached Figure Description

[0007] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0008] Figure 1 is a front view of this utility model;

[0009] Figure 2 is a partial enlarged view of Figure 1 of this utility model;

[0010] Figure 3 is a bottom view of Figure 1 of this utility model;

[0011] Figure 4 is a schematic diagram of the principle of this utility model;

[0012] In the diagram: Heating module 1, Temperature sensor arrangement module 2, Power transmission module 3, Front heating device plate 11, Rear heating device plate 12, Lower heating device plate 13, Peripheral temperature sensor 21, Central temperature sensor 22, Motor controller 31, Power plug 32, Central bracket 33, Wire 34, Temperature control valve 35, Annular heating coil 4, Central heating module 5. Detailed Implementation

[0013] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0014] According to an embodiment of the present invention, a charging and heating device for electric vehicle batteries is provided.

[0015] The present invention will now be further described with reference to the accompanying drawings and specific embodiments. As shown in Figures 1-4, an electric vehicle battery charging and heating device according to an embodiment of the present invention includes a heating module 1, a temperature sensor arrangement module 2, an electrical energy transmission module 3, a front heating device plate 11, a rear heating device plate 12, a lower heating device plate 13, an outer temperature sensor 21, a central temperature sensor 22, a motor controller 31, a power supply plug 32, a central bracket 33, a wire 34, a temperature control valve 35, an annular heating coil 4, and a central heating module 5.

[0016] When the electric vehicle user starts charging, the motor controller 31 monitors the ambient temperature of the battery in real time. When the ambient temperature is detected to be below 25 degrees Celsius, it controls the temperature control valve 35 to open. After the AC power is input, it passes through a rectifier and filter, a switch, a switching transformer, and a high-frequency rectifier and filter, and then through two DC output circuits. One circuit supplies power to charge the battery, and the other circuit heats the battery through the front heating plate 11, the rear heating plate 12, and the lower heating plate 13 arranged on the frame via the temperature control valve 35. When the ambient temperature is detected to be above 25 degrees Celsius during the heating process, the motor controller 31 controls the temperature control valve 35 to close and stop heating.

[0017] When current flows through the power plug 32, electrical energy is transmitted through the wires 34 arranged inside the central bracket 33 to the temperature control valve 35. When the motor controller 31 detects that the temperature of the peripheral temperature sensor 21 and the central temperature sensor 22 arranged on the front heating device plate 1, the rear heating device plate 2, the lower heating device plate 3 is lower than 25 degrees, it controls the temperature control valve 35 to open, and the electrical energy is transmitted to the central heating module 5 and the annular heating ring 4, thereby heating the battery during charging.

[0018] The temperature sensor layout is divided into two parts: several peripheral temperature sensors 21 are arranged on both sides of the heating device plate to monitor the temperature change of the annular heating ring 4, and a central temperature sensor 22 is arranged on the central heating module 5 to monitor the temperature change of the central heating module 5.

[0019] When the motor controller 31 detects that the temperature of the peripheral temperature sensor 21 is higher than 25 degrees, it turns off the heating of the annular heating coil 4; when it detects that the temperature of the central temperature sensor 22 is higher than 25 degrees, it turns off the heating of the central heating module 5 to prevent the battery from being adversely affected by excessive local temperature.

[0020] Working principle: When the electric vehicle user starts charging, the motor controller 31 detects the temperature of the external temperature sensor 21. When the ambient temperature is below 25 degrees, the motor controller 31 controls the temperature control valve 35 to open, and the DC output terminal of the charger heats the front heating device plate 11, the rear heating device plate 12, and the lower heating device plate 13 to increase the ambient temperature of the battery during the charging process. When the ambient temperature is above 25 degrees, the motor controller 31 controls the temperature control valve 35 to close, disconnecting the heating tube.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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 or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A charging and heating device for an electric vehicle battery, characterized in that: It includes a battery heating module (1), a temperature sensor arrangement module (2), and a power transmission module (3); the battery heating module (1) includes a front heating device plate (11), a rear heating device plate (12), and a lower heating device plate (13), which are arranged in a U-shape; the temperature sensor arrangement module (2) includes an outer temperature sensor (21) and a central temperature sensor (22); the power transmission module (3) includes a motor controller (31), a power plug (32), a central bracket (33), a wire (34), and a temperature control valve (35).

2. The electric vehicle battery charging and heating device according to claim 1, characterized in that: The front heating device plate (11), the rear heating device plate (12), and the lower heating device plate (13) are each provided with an annular heating ring (4) and a central heating module (5) on their surfaces.

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