CN210309969U

CN210309969U - Electric automobile charging device with temperature measurement and control functions

Info

Publication number: CN210309969U
Application number: CN201921176169.7U
Authority: CN
Inventors: 陈天福; 陈翔宇; 熊志伟
Original assignee: Jiujiang Wire Winding Equipment Branch Of Ningbo Free Trade Zone Pioneer Industry & Trade Co ltd
Current assignee: Jiujiang Wire Winding Equipment Branch Of Ningbo Free Trade Zone Pioneer Industry & Trade Co ltd
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-04-14
Anticipated expiration: 2029-07-25

Abstract

The utility model provides an electric automobile charging device with temperature measurement and control function, including charging plug (1), earth-leakage protector (2), charge control box (3), rifle (4) and temperature sensor assembly (5) charge, wherein temperature sensor assembly (5) are installed in the NC1 or the NC2 hole of rifle (4) charge. The charging control box (3) is internally provided with a control unit MPU (3-1) which receives signals of the temperature sensor assembly (5) and controls a K1 relay, a K2 relay (3-2) and an audible and visual self-telephone alarm (3-3) so as to measure and monitor the temperature of the electric automobile when the electric automobile is charged, and if the charging is found, the temperature of the electric automobile is abnormally increased, the charging current is immediately cut off, and audible and visual automatic telephone alarm is carried out. The probability of fire hazard when the electric automobile is charged can be effectively reduced.

Description

Electric automobile charging device with temperature measurement and control functions

Technical Field

The utility model belongs to the electric automobile field of charging specifically is an electric automobile charging device with temperature measurement and control function.

Background

Generally, a battery management system of an electric vehicle is provided with a management program of a charging process, and can manage charging abnormality. However, the charging management system of the electric vehicle itself may be in failure, and in practice, a fire due to a temperature rise of the charging may occur occasionally, and the specific reasons include line aging, failure of the management system, battery damage, and the like.

The existing charging device is lack of a real-time detection means for the temperature of the automobile during charging, so that the abnormal rise of the temperature of the automobile battery during charging can not be found in time, and the charging current and the alarm function can not be cut off in time. When the charging device is used for charging the electric automobile, if the temperature of the automobile is too high, the battery management system of the electric automobile fails to cut off the charging current and give an alarm in time, and a fire disaster is caused. Further causing greater problems and causing significant accident losses.

Disclosure of Invention

For solving the not enough of above-mentioned prior art, the utility model provides a technical problem be, provide the electric automobile charging device who has temperature measurement and control function, this charging device can real-time detection car temperature in charging process, rises if discovery car temperature is unusual, in time cuts off charging current and reports to the police to avoid the emergence of conflagration. Multiple safety protection is provided for automobile charging, and the probability of fire hazard during automobile charging is reduced.

In order to solve the technical problem, the utility model discloses a charging device mainly includes charging plug, earth-leakage protector, charging control box, the rifle that charges and temperature sensor assembly etc. and constitutes. The charging plug, the leakage protector, the charging control box and the charging gun are connected in series through charging wires, and the temperature sensor assembly is installed in the charging gun and is connected to a control unit MPU of the charging control box through a sensing circuit. When charging, the control unit MPU of the charging control box timely receives the data of the temperature sensor, calculates and analyzes, and realizes the connection or disconnection of a charging circuit by controlling the action of the relay, thereby achieving the purposes of charging temperature control and safe charging.

To the utility model discloses a further improvement, the temperature sensor assembly is installed in the NC1 or the NC2 jack of rifle that charges, and it is downthehole because of the rifle that charges inserts the car electric mortiser insert during charging for temperature sensor head in the temperature sensor assembly, it is nearest apart from the car, do benefit to sensitive car temperature change most.

Preferably, a K1 relay and a K2 relay are arranged in the charging control box, and control signals are sent to the K1 relay and the K2 relay according to conditions by setting a control unit MPU control mode so as to control the connection and disconnection of K1 and K2 relay contacts.

Furthermore, an audible and visual alarm and an automatic telephone alarm are arranged in the charging control box and receive control signals sent by the control unit MPU. When the temperature is abnormal, the control unit MPU receives the data of the temperature sensor, sends out a control signal when the temperature is abnormal, cuts off the charging current in time and drives the acousto-optic and automatic telephone alarm to work.

In the technical scheme, the thermosensitive temperature sensor is low in cost, simple and convenient to install and simple in principle, and can quickly, simply and conveniently realize automobile temperature measurement; the control unit MPU in the charging control box is directly utilized to realize the control function, so that the control equipment is reduced, the cost is saved, and the function of controlling on-off charging in real time is realized; the charging control box is added with a sound-light and self-telephone alarm, so that the signal transmission and processing means after the temperature is abnormal are enriched. Through the technical scheme, the purposes of monitoring and processing temperature abnormity in the charging process of the electric automobile in real time can be achieved.

Drawings

Fig. 1 is the utility model discloses electric automobile charging device line connection schematic diagram.

Fig. 2 is a schematic structural view of the temperature sensor assembly (5) in fig. 1.

Fig. 3 is a schematic view of the installation of the temperature sensor assembly (5) in the charging gun (4).

Fig. 4 is a sectional view taken along line a-a of fig. 3.

In fig. 1: the charging device comprises a charging plug (1), a leakage protector (2), a charging control box (3), a charging gun (4), a temperature sensor assembly (5), a control unit MPU (3-1), a K1 relay and a K2 relay (3-2), an audible and visual and automatic telephone alarm (3-3), a voltage-stabilized power supply (3-4), a voltage sensor (3-5) and a display, a current sensor (3-6) and a display.

In fig. 2: the temperature sensor comprises a temperature sensor connecting wire (5-1), a connecting wire insulating layer (5-2), a waterproof rubber ring (5-3), sealing and pouring glue (5-4), a sensor shell (5-5) and a temperature sensor head (5-6).

In fig. 3: CP plug (4-1). A PE plug (4-2), a CC plug (4-3),

the temperature sensor comprises an L plug (4-4), a temperature sensor assembly (5), an NC1 hole (4-5) and an N plug (4-6).

In fig. 4: the charging gun comprises a plug pressing plate (4-7), an O-shaped ring (4-8), a charging gun plug shell (4-9), a CP plug (4-1), a PE plug (4-2), a temperature sensor assembly (5) and a temperature sensor head (5-6).

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1, fig. 2, fig. 3 and fig. 4, and it is obvious that the described embodiment is only a specific embodiment of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model relates to an electric automobile charging device with temperature control function, which mainly comprises a charging plug (1), a leakage protector (2), a charging control box (3), a charging gun (4) and a temperature sensor assembly (5), wherein the charging control box (3) is internally provided with a control unit MPU (3-1), a regulated power supply (3-4), a voltage sensor (3-5), a display, a current sensor (3-6) and a display, wherein the temperature sensor assembly (5) is arranged in an NC1 or NC2 hole of the charging gun (4), the temperature sensor head (5-6) in figure 2 is mounted in a sensor housing (5-5), and the sensor housing (5-5) is installed in an NC1 hole or an NC2 hole of the charging gun (4), the automobile temperature monitoring device is in contact with the automobile at the closest distance, and is beneficial to monitoring the temperature change of the automobile during charging.

In order to realize the function of controlling the power-on and power-off in real time according to data measured by the temperature sensor, the temperature sensor assembly (5) is connected to a control unit MPU (3-1) of the charging control box (3) through a sensing circuit, a K1 relay and a K2 relay (3-2) are additionally arranged in the charging control box (3), and the control mode of the control unit MPU (3-1) is set so as to control the on and off of contacts of the K1 relay and the K2 relay (3-2).

Meanwhile, a sound-light and automatic telephone alarm is additionally arranged in the charging control box, and the sound-light and automatic telephone alarm is controlled to work in real time according to data transmitted by the temperature sensor by setting a control mode of a control unit MPU (3-1), namely, the sound-light and automatic telephone alarm send out alarm signals when the temperature is abnormal, so that the signal transmission and processing means after the temperature is abnormal are further enriched.

Claims

1. An electric vehicle charging device with temperature measurement and control functions mainly comprises a charging plug (1), a leakage protector (2), a charging control box (3), a charging gun (4) and a temperature sensor assembly (5); the charging control box (3) is internally provided with a control unit MPU (3-1), a K1 relay and a K2 relay (3-2), an audible and visual and automatic telephone alarm (3-3), a stabilized voltage power supply (3-4), a voltage sensor (3-5) and a display, a current sensor (3-6) and a display; the method is characterized in that: the temperature sensor assembly (5) is installed in the charging gun (4), the charging gun is connected to a control unit MPU (3-1) of the charging control box (3) through a sensing circuit, a K1 relay and a K2 relay (3-2) are arranged in the charging control box (3), the control unit MPU (3-1) of the charging control box (3) controls the on-off of contacts of the K1 relay and the K2 relay (3-2) through a K1 relay and a K2 relay (3-2), and the on-off control of charging current is achieved.

2. The electric vehicle charging apparatus with temperature measuring and controlling functions as set forth in claim 1, wherein: the temperature sensor assembly (5) is arranged in an NC1 or NC2 hole of the charging gun (4).

3. The electric vehicle charging apparatus with temperature measurement and control functions as set forth in claim 1 or 2, wherein: the charging control box (3) is internally provided with an acousto-optic and automatic telephone alarm (3-3) and receives a control signal sent by the control unit MPU (3-1) through a control line so as to realize acousto-optic and automatic telephone alarm.

4. The electric vehicle charging apparatus with temperature measurement and control functions as set forth in claim 1 or 2, wherein: the temperature sensor head (5-6) is arranged in the sensor shell (5-5), and the sensor shell (5-5) is arranged in an NC1 hole or an NC2 hole of the charging gun (4) so as to realize the closest distance contact with the automobile and be beneficial to monitoring the temperature change of the automobile during charging.