CN218916598U - New energy electric automobile alternating current charging equipment business turn over cable conductor temperature monitoring device - Google Patents

Abstract

The utility model discloses a temperature monitoring device for the incoming and outgoing cables of AC charging equipment for new energy electric vehicles. A charging module is fixed inside the charging pile. The wires are electrically connected to the input and output ends of the charging module through relays. The interior of the charging pile is located on the side of the charging module. A main control circuit board is installed on the main control circuit board. A microprocessor is installed on the main control circuit board. A temperature measuring module is fixed on the power outlet cable, the temperature measuring module is electrically connected to the input end of the microprocessor, and the output end of the microprocessor is electrically connected to the relay. The utility model measures the temperature of the power input cable and the power output cable respectively through the set temperature measurement module, and transmits the detected temperature information to the microprocessor. When the temperature value is higher than the threshold value of the microprocessor, the microprocessor The processor controls the automatic disconnection of the relay, which improves the safety of electric vehicle charging.

Description

New energy electric vehicle AC charging equipment inlet and outlet cable temperature monitoring device

technical field

The utility model relates to the technical field of charging equipment for new energy electric vehicles, in particular to a temperature monitoring device for incoming and outgoing cables of AC charging equipment for new energy electric vehicles.

Background technique

At present, new energy electric vehicles are a trend in the national and global automotive industry, which are environmentally friendly and low-carbon. The charging equipment for new energy electric vehicles will be born accordingly. The charging equipment will heat up during the charging process. At present, the temperature monitoring of the AC charging equipment on the market only involves the temperature monitoring of the plug of the charging equipment and the control box, and the important components of the charging equipment The temperature monitoring of some cables has been blank. Therefore, it is necessary to design a temperature monitoring device for the incoming and outgoing cables of AC charging equipment for new energy electric vehicles.

Utility model content

In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a new energy electric vehicle AC charging equipment inlet and outlet cable temperature monitoring device, through which the temperature measurement module is set to measure the temperature of the power inlet cable and the power outlet cable respectively , and transmit the detected temperature information to the microprocessor. When the temperature value is higher than the threshold value of the microprocessor, the microprocessor controls the relay to automatically disconnect, which improves the safety of electric vehicle charging.

In order to achieve the above purpose, the utility model provides the following technical solution: a new energy electric vehicle AC charging equipment inlet and outlet cable temperature monitoring device, including a charging pile, a charging module is fixed inside the charging pile, and the input terminal of the charging module is connected to the The power input cable is electrically connected, the output end of the charging module is electrically connected to the power output cable, the tail end of the power output cable is connected to a charging gun, and the power input cable and the power output cable are respectively The relay is electrically connected to the input end and the output end of the charging module. The inside of the charging pile is located on the side of the charging module, and a main control circuit board is installed on the main control circuit board. A microprocessor is installed on the main control circuit board. The power supply A temperature measurement module is fixed on both the input cable and the power output cable, the temperature measurement module is electrically connected to the input end of the microprocessor, and the output end of the microprocessor is electrically connected to the relay.

Preferably, the power supply end of the main control circuit board is electrically connected to the power line.

Preferably, the temperature measurement module includes a data cable, a connecting terminal, a housing and a temperature sensor;

The housing is equidistantly socketed on the power input cable and the power output cable, and the inside of the housing is fixed with temperature sensors that are in contact with the power input cable and the power output cable, and several of the temperature sensors pass through the data line cable connection, and the tail end of the data cable is plugged into the main control circuit board through the connection terminal.

Preferably, the bottom of the housing is provided with a through internal thread groove, the inside of the internal thread groove is screwed and fixed with an external thread handle, and the top end of the external thread handle is fixed with a rubber pressure block.

Preferably, a wireless communication module is installed on the main control circuit board, and the output end of the microprocessor is connected to the receiving terminal through the wireless communication module.

The beneficial effects of the utility model are:

1. Measure the temperature of the power input cable and the power output cable through the set temperature measurement module, and transmit the detected temperature information to the microprocessor. When the temperature value is higher than the threshold value of the microprocessor, the microprocessor will The relay control relay is automatically disconnected, which improves the safety of electric vehicle charging;

2. The setting of the power cord is convenient for connecting to the power socket and realizing the independent power supply of the main control circuit board;

3. The temperature sensors are equidistantly distributed on the power inlet cable and the power outlet cable, and are protected by the shell, which is convenient for accurate temperature measurement of the power inlet cable and the power outlet cable;

4. After passing the power input cable and power output cable through the shell, turn the external threaded handle so that the external threaded handle is pressed between the rubber pressure block and the temperature sensor to ensure the stability of the shell;

5. The setting of the wireless communication module is convenient for the microprocessor to transmit the abnormal information to the receiving terminal through the wireless communication module when the temperature measurement module detects that the temperature of the power inlet cable and the power outlet cable is abnormal, so that the management personnel can check it in time.

Description of drawings

The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, and are used to explain the utility model together with the embodiments of the utility model, and do not constitute a limitation to the utility model. In the attached picture:

Fig. 1 is a schematic diagram of the overall frontal plane structure of the utility model;

Fig. 2 is a schematic diagram of the cross-sectional plane structure of the charging pile of the utility model;

Fig. 3 is a schematic diagram of the planar structure of the temperature measuring module of the present invention;

Fig. 4 is a schematic diagram of a cross-sectional plane structure of the shell of the utility model;

Labels in the figure: 1. Charging pile; 2. Power input cable; 3. Power output cable; 4. Charging gun; 5. Temperature measurement module; 6. Power cord; 7. Charging module; 8. Relay; 9. Main control circuit board; 10. Microprocessor; 11. Wireless communication module; 12. Data cable; 13. Connecting terminal; 14. Shell; 15. Temperature sensor; 16. Internal thread groove; 17. External thread handle; 18. Rubber briquetting block.

Detailed ways

In the following, only some exemplary embodiments are briefly described. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and descriptions are to be regarded as illustrative in nature and not restrictive.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific The azimuth structure and operation, therefore can not be construed as the limitation of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features.

The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

Embodiment one

As shown in Figure 1 and Figure 2, the utility model provides the following technical solutions: a new energy electric vehicle AC charging equipment inlet and outlet cable temperature monitoring device, including a charging pile 1, a charging module 7 is fixed inside the charging pile 1, and the charging module 7 The input end of the charging module 7 is electrically connected to the power input cable 2, the output end of the charging module 7 is electrically connected to the power output cable 3, the end of the power output cable 3 is connected to the charging gun 4, the power input cable 2 and the power supply The outgoing cable 3 is electrically connected to the input end and output end of the charging module 7 respectively through the relay 8. The interior of the charging pile 1 is located on the side of the charging module 7. A main control circuit board 9 is installed on the main control circuit board 9. The microprocessor 10, the power input cable 2 and the power output cable 3 are fixed with a temperature measurement module 5, the temperature measurement module 5 is electrically connected to the input end of the microprocessor 10, and the output end of the microprocessor 10 is electrically connected to The relay 8, the power input cable 2 is connected to the mains, the electric energy is delivered to the charging module 7 through the power output cable 3, and after being converted by the charging module 7, the new energy electric vehicle is charged through the power output cable 3 and the charging gun 4, The temperature measurement module 5 is used to measure the temperature of the power inlet cable 2 and the power outlet cable 3 respectively, and transmit the detected temperature information to the microprocessor 10. When the temperature value is higher than the threshold value of the microprocessor 10 , the microprocessor 10 controls the automatic disconnection of the relay 8, which improves the safety of electric vehicle charging, wherein the microprocessor 10 adopts a TM221CE40T PLC programmable controller, and the relay 8 adopts a grl-2413 reed relay.

Preferably, the power supply end of the main control circuit board 9 is electrically connected to the power cord 6 , and the power cord 6 is provided for easy connection to a power socket, so as to realize independent power supply of the main control circuit board 9 .

Embodiment two

1 and 3, as another preferred embodiment, the difference from Embodiment 1 is that the temperature measurement module 5 includes a data cable 12, a connection terminal 13, a housing 14 and a temperature sensor 15;

The outer shell 14 is equidistantly socketed on the power input cable 2 and the power output cable 3, and the inside of the outer shell 14 is fixed with a temperature sensor 15 in contact with the power input cable 2 and the power output cable 3, and several temperature sensors 15 pass through The data cable 12 is connected, the tail end of the data cable 12 is plugged on the main control circuit board 9 through the connection terminal 13, and the temperature sensors 15 are equidistantly distributed in the power supply cable 2 and the power supply cable 3, and use the shell 14 It is protected to facilitate accurate temperature measurement of the power input cable 2 and the power output cable 3, wherein the temperature sensor 15 adopts a WRF-101 thermocouple temperature sensing element.

Embodiment Three

Referring to Fig. 3 and Fig. 4, as another preferred embodiment, the difference from Embodiment 2 is that the bottom of the housing 14 is provided with a through internal thread groove 16, and the inner thread groove 16 is screwed and fixed with an external thread handle 17 , the top of the external thread handle 17 is fixed with a rubber pressure block 18, after the power supply cable 2 and the power output cable 3 pass through the shell 14, the external thread handle 17 is turned to make the external thread handle 17 pressed against the rubber Between the pressing block 18 and the temperature sensor 15, the stability of the housing 14 is ensured.

Embodiment Four

Referring to Fig. 2, as another preferred embodiment, the difference from Embodiment 1 is that a wireless communication module 11 is installed on the main control circuit board 9, and the output end of the microprocessor 10 is connected to the receiving terminal through the wireless communication module 11. The setting of the wireless communication module 11 facilitates when the temperature measurement module 5 detects that the temperature of the power input cable 2 and the power output cable 3 is abnormal, and the microprocessor 10 transmits the abnormal information to the receiving terminal through the wireless communication module 11, which is convenient for management personnel to timely Check, wherein the wireless communication module 11 adopts the E18-MS1-PCB wireless module.

working principle:

The power input cable 2 is connected to the mains, and the electric energy is delivered to the charging module 7 through the power output cable 3. After being converted by the charging module 7, the new energy electric vehicle is charged through the power output cable 3 and the charging gun 4. The temperature measurement module 5 measures the temperature of the power input cable 2 and the power output cable 3 respectively, and transmits the detected temperature information to the microprocessor 10. When the temperature value is higher than the threshold value of the microprocessor 10, the microprocessor The device 10 controls the relay 8 to disconnect automatically, which improves the safety of electric vehicle charging.

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (5)

1. New energy electric automobile alternating current charging equipment business turn over cable conductor temperature monitoring device, including charging stake (1), the inside of charging stake (1) is fixed with charging module (7), the input and the power of charging module (7) advance cable conductor (2) electric connection, the output and the power of charging module (7) go out cable conductor (3) electric connection, the trailing end connection that power goes out cable conductor (3) has rifle (4) that charges, its characterized in that: the utility model discloses a power cable inlet cable (2) and power cable outlet cable (3) are respectively through relay (8) and the input and the output electric connection of module (7) that charges, main control circuit board (9) are installed to the inside of charging pile (1) that is located the side of module (7) that charges, install microprocessor (10) on main control circuit board (9), all be fixed with temperature measurement module (5) on power cable inlet cable (2) and the power cable outlet cable (3), the input of microprocessor (10) is connected to temperature measurement module (5) electric connection, the output electric connection relay (8) of microprocessor (10).

2. The new energy electric automobile alternating current charging equipment business turn over cable temperature monitoring device of claim 1, wherein: the power supply end of the main control circuit board (9) is electrically connected with the power line (6).

3. The new energy electric automobile alternating current charging equipment business turn over cable temperature monitoring device of claim 1, wherein: the temperature measuring module (5) comprises a data cable (12), a connecting terminal (13), a shell (14) and a temperature sensor (15);

the shell (14) is equidistantly sleeved on the power supply cable inlet (2) and the power supply cable outlet (3), a temperature sensor (15) in contact with the power supply cable inlet (2) and the power supply cable outlet (3) is fixed in the shell (14), the temperature sensors (15) are connected through the data cable (12), and the tail end of the data cable (12) is spliced on the main control circuit board (9) through the connecting terminal (13).

4. The new energy electric automobile alternating current charging equipment business turn over cable temperature monitoring device of claim 3, wherein: the bottom of shell (14) has seted up lining up internal thread groove (16), the inside of internal thread groove (16) is connected soon and is fixed with external screw thread spiral handle (17), the top of external screw thread spiral handle (17) is fixed with rubber briquetting (18).

5. The new energy electric automobile alternating current charging equipment business turn over cable temperature monitoring device of claim 1, wherein: the main control circuit board (9) is provided with a wireless communication module (11), and the output end of the microprocessor (10) is in communication connection with the receiving terminal through the wireless communication module (11).

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