Intelligent refrigerant filling detection system for automobile air conditioner

Abstract

The utility model relates to the technical field of automobile air conditioner refrigerant filling, in particular to an automobile air conditioner refrigerant intelligent filling detection system which comprises a filling device and a detachable temperature detector, and the filling device is provided with a filling head, a main processing chip, an LCD display screen, a control valve and a microswitch. The microswitch is connected with the main processing chip and used for collecting the conduction state of the control valve in real time, the pressure of an air conditioner system can be monitored in real time and displayed through the LCD display screen, the temperature detector is provided with an auxiliary processing chip and a temperature sensor, the temperature of an air outlet of an air conditioner can be monitored in real time, and wireless communication with the filling device is achieved through Bluetooth. According to the utility model, through the detachable design and the wireless communication technology, the operation efficiency and the system intelligence level are greatly improved, the feedback mode is more visual, and the operation difficulty and the misoperation risk are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to automobile air conditioner refrigerant filling technical field especially, relate to an automobile air conditioner refrigerant intelligent filling detection system. BACKGROUND

[0002] The automobile air conditioner refrigerant intelligent filling detection system is a key equipment in the field of modern automobile maintenance, and its importance is increasingly prominent. The system not only integrates the efficient filling function of refrigerant, but also covers multiple technologies such as pressure monitoring, sealing performance testing, temperature monitoring and intelligent control.

[0003] For example, Chinese utility model patent application No. 2008200948038 discloses a refrigerant recycling and filling device integrated with automobile air conditioner diagnosis function. The device is connected with an AD conversion module through high and low pressure sensors, realizing digital processing of data. Through the connection between the data processing module and the data storage, the data management and analysis ability of the system is further improved.

[0004] However, the refrigerant filling end of the automobile air conditioner and the air outlet end of the air conditioner are often distributed at different positions of the vehicle, which causes the operator to frequently move between the filling end and the air outlet end during the filling operation. Not only is the operation efficiency low, but also the filling accuracy is easily affected by human factors. In addition, the existing devices mostly lack real-time feedback mechanism, which makes it difficult for the operator to obtain the state information of the system in time during the filling process, thereby affecting the accuracy and safety of the filling. UTILITY MODEL CONTENTS

[0005] The utility model aims at the above-mentioned problems existing in the prior art, and provides an automobile air conditioner refrigerant intelligent filling detection system.

[0006] The utility model can be realized by the following technical scheme: an automobile air conditioner refrigerant intelligent filling detection system, comprising a filling device and a temperature detector, wherein the filling device is provided with a filling head and a main processing chip, the filling head is used to connect with the air conditioner system and is provided with a pressure sensor, the pressure sensor is connected with the main processing chip through an AD conversion module, the temperature detector is provided with an auxiliary processing chip and a temperature sensor, the temperature sensor is connected with the auxiliary processing chip through an AD conversion module, the filling device is further provided with an LCD display screen, a control valve and a micro switch, the LCD display screen is connected with the main processing chip through a display module, the micro switch is connected with the main processing chip for real-time acquisition of the conduction state of the control valve, the temperature detector is detachably connected to the filling device, and the auxiliary processing chip and the main processing chip are respectively connected with a Bluetooth sending module and a corresponding Bluetooth receiving module to realize wireless communication between them.

[0007] As preferred, the temperature measuring device and the filling device are each provided with a power supply.

[0008] As preferred, the temperature measuring device is provided with a start switch connected to the auxiliary processing chip for controlling the opening and closing of the temperature measuring device.

[0009] As preferred, the main processing chip is connected with a storage module.

[0010] As preferred, the temperature measuring device is connected to the filling device through a plug-in connection.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] The temperature measuring device and the filling device are designed to be detachable, so that the operator does not need to move back and forth between the filling end and the air outlet end of the air conditioner, the operation steps and time are greatly reduced, and the working efficiency is improved.

[0013] 2. Real-time enhancement, through the integration of the Bluetooth receiving module and the Bluetooth sending module, the wireless connection between the temperature measuring device and the filling device is realized, so that the key information (such as temperature, pressure, control valve state) can be transmitted to the LCD display screen in real time, providing a clear and intuitive monitoring interface for the operator.

[0014] 3. Improve the intelligent level of the system, the introduction of the main control switch and the mode switching switch makes the operation interface more intuitive and friendly, reduces the operation difficulty and the risk of misoperation. At the same time, the addition of the storage module enables the system to record and store key data in real time, providing a basis for subsequent fault diagnosis, performance analysis and system optimization.

[0015] 4. The temperature measuring device and the filling device each have an independent power supply, so that they can work independently without relying on external power supply, improving the flexibility of the system and being suitable for various working environments. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the flow chart of the system.

[0017] Figure 2 is the connection structure diagram of the filling device and the temperature measuring device.

[0018] In the figure, 1 is a filling device, 11 is a filling head, 12 is a main processing chip, 13 is an LCD display screen, 14 is a control valve, 15 is a micro switch, 16 is a pressure sensor, 17 is an AD conversion module, 18 is a display module, 19 is a Bluetooth receiving module, 2 is a temperature measuring device, 21 is an auxiliary processing chip, 22 is a temperature sensor, 23 is a Bluetooth sending module, 3 is an air outlet of an air conditioner, 4 is a main control switch, 5 is a mode switching switch, 6 is a power supply, 7 is a start switch, and 8 is a storage module. Detailed Implementation

[0019] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0020] like Figure 1 , Figure 2 As shown, an intelligent refrigerant filling and detection system for automotive air conditioning includes a filling device 1 and a thermometer 2. The filling device 1 is equipped with a filling head 11 and a main processing chip 12. The filling head 11 is used to connect to the air conditioning system and is equipped with a pressure sensor 16. The pressure sensor 16 is connected to the main processing chip 12 through an AD conversion module 17. The thermometer 2 is equipped with an auxiliary processing chip 21 and a temperature sensor 22. The temperature sensor is connected to the auxiliary processing chip 21 through the AD conversion module 17. The filling device 1 is further equipped with an LCD display screen 13, a control valve 14, and a micro switch 15. The LCD display screen 13 is connected to the main processing chip 12 through a display module 18. The micro switch 15 is connected to the main processing chip 12 to collect the conduction status of the control valve 14 in real time. The thermometer 2 is detachably connected to the filling device 1. The auxiliary processing chip 21 and the main processing chip 12 are respectively connected to a Bluetooth transmitting module 23 and a corresponding Bluetooth receiving module 19 to realize wireless communication between the two.

[0021] The intelligent refueling process and principle are as follows:

[0022] Connecting to the air conditioning system: Connect the filling head 11 of the filling device 1 to the high and low pressure lines of the vehicle's air conditioning system, ensuring a tight seal and no leakage; the system automatically detects the connection status through the pressure sensor 16 and displays a successful connection message on the LCD display screen 13;

[0023] Refrigerant charging: Confirm the charging capacity, time, and refrigerant type set on the car's air conditioning system, then open control valve 14. During the charging process, pressure sensor 16 continuously monitors the internal pressure of the air conditioning system. The analog pressure signal is converted into a digital signal by AD conversion module 17, and display module 18 converts the digital signal into image information that can be displayed on LCD screen 13. Simultaneously, microswitch 15 collects the on / off status of control valve 14 in real time and feeds the information back to LCD screen 13 in real time through main processing chip 12.

[0024] Temperature detection and feedback: The temperature detector 2 is detached from the filling device 1 and arranged on the air conditioner outlet 3. The temperature sensor 22 monitors the temperature change of the air conditioning system in real time and transmits the data to the auxiliary processing chip 21 through the AD conversion module 17. The auxiliary processing chip 21 transmits the temperature data to the main processing chip 12 of the filling device 1 through the Bluetooth sending module 23. After receiving the temperature data, the main processing chip 12 displays the data on the LCD display screen 13 in real time, which is convenient for the operator to observe and analyze.

[0025] The detachable design of the temperature detector 2 and the filling device 1 greatly improves the flexibility of operation. The operator does not need to move back and forth between the filling end and the air conditioner outlet end frequently during the filling operation, which greatly reduces the operation steps and time and improves the work efficiency.

[0026] The system realizes wireless connection between the temperature detector 2 and the filling device 1 by integrating the Bluetooth receiving module 19 and the Bluetooth sending module 23, so that the key information such as the temperature of the air conditioner outlet, the pressure of the filling port and the conduction state of the control valve 14 can be transmitted to the LCD display screen in real time, providing a clear and intuitive monitoring interface for the operator. The real-time acquisition function of the micro switch 15 further enhances the real-time feedback capability of the system, ensuring that the operator can obtain the state information of the system in real time during the filling process, so as to make accurate judgment and decision.

[0027] Further, the system also includes a main control switch 4 and a mode switching switch 5. The main control switch 4 is connected with the main processing chip 12 for controlling the opening and closing of the whole system. The mode switching switch 5 is connected with the main processing chip 12 for switching the display of pressure information or temperature information on the LCD display screen 13.

[0028] The addition of the main control switch 4 enables the operator to conveniently control the opening and closing of the whole system. This function not only improves the operation convenience of the system, but also helps to turn off the system in time when filling operation is not needed, so as to save energy and prolong the service life of the equipment.

[0029] The design of the mode switching switch 5 allows the operator to flexibly switch the display of pressure information or temperature information on the LCD display screen 13. This function enables the operator to focus on a certain state parameter of the system according to the needs, so as to more accurately master the running state of the system.

[0030] For example, in the initial stage of refrigerant filling, the operator may pay more attention to the change of pressure to ensure the smooth progress of the filling process; while after the filling is completed, the operator may pay more attention to the change of temperature to evaluate the performance of the air conditioning system.

[0031] The introduction of the master switch 4 and the mode switching switch 5 makes the operation interface more intuitive and friendly. The operator can realize the start and stop of the system and the information switching without complex menu operation, thereby reducing the operation difficulty and the risk of misoperation.

[0032] Further, the temperature measuring device 2 and the filling device 1 are each provided with a power supply 6.

[0033] The temperature measuring device 2 and the filling device 1 each have an independent power supply 6, so that they can work independently without relying on external power supply, greatly improving the flexibility of the system, so that the operator can perform filling work in various environments without worrying about power supply problems. The power supply 6 as an independent component can be easily maintained and replaced.

[0034] Further, the temperature measuring device 2 is provided with a start switch 7 connected with the auxiliary processing chip 21 for controlling the start and stop of the temperature measuring device 2.

[0035] The start switch 7 on the temperature measuring device 2 allows the operator to independently control the start and stop of the temperature measuring device. Through the start switch 7, the operator can turn off the temperature measuring device 2 when temperature measurement is not needed, thereby avoiding unnecessary power consumption.

[0036] The addition of the start switch 7 also makes the temperature measuring device 2 not perform any measurement or data transmission when it is not explicitly started. This helps to avoid problems such as inaccurate measurement data or equipment damage caused by misoperation, and improves the overall safety of the system. The independent start switch 7 makes the maintenance and management of the temperature measuring device more simple and convenient.

[0037] Further, the main processing chip 12 is connected with a storage module 8.

[0038] The storage module 8 enables the main processing chip 12 to record and store key data in real time during the filling operation, such as temperature, pressure, control valve state, etc. These data can not only be used for subsequent troubleshooting and performance analysis, but also as backup data to ensure quick recovery in case of data loss or damage. The large amount of data stored in the storage module provides a basis for data analysis, and the operator can use these data to analyze the efficiency and accuracy of the filling operation, find out the key factors affecting the performance, and then optimize and improve the system.

[0039] Further, the temperature measuring device 2 is plug-connected to the filling device 1, so that the operator can quickly install or remove the temperature measuring device 2 from the filling device 1, further enhancing the flexibility and convenience of the automobile air conditioner refrigerant intelligent filling detection system.

[0040] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. An automobile air conditioner refrigerant intelligent filling detection system, comprising a filling device (1) and a temperature detector (2), wherein the filling device (1) is provided with a filling head (11) and a main processing chip (12), the filling head (11) is used for connecting with an air conditioning system and is provided with a pressure sensor (16), the pressure sensor (16) is connected with the main processing chip (12) through an AD conversion module (17), the temperature detector (2) is provided with an auxiliary processing chip (21) and a temperature sensor (22), the temperature sensor is connected with the auxiliary processing chip (21) through the AD conversion module (17), characterized in that, The filling device (1) is further provided with an LCD display screen (13), a control valve (14) and a micro switch (15), the LCD display screen (13) is connected with the main processing chip (12) through a display module (18), the micro switch (15) is connected with the main processing chip (12) and is used for collecting the conduction state of the control valve (14) in real time, the temperature detector (2) is detachably connected on the filling device (1), the auxiliary processing chip (21) and the main processing chip (12) are respectively connected with a Bluetooth sending module (23) and a corresponding Bluetooth receiving module (19), so as to realize wireless communication between the two.

2. The intelligent refrigerant filling detection system for automobile air conditioner according to claim 1, characterized in that, The system further comprises a main control switch (4) and a mode switching switch (5), the main control switch (4) is connected with the main processing chip (12) and is used for controlling the opening and closing of the whole system, and the mode switching switch (5) is connected with the main processing chip (12) and is used for switching the display of pressure information or temperature information on the LCD display screen (13).

3. The intelligent refrigerant filling detection system for automobile air conditioner according to claim 2, characterized in that, The temperature detector (2) and the filling device (1) are both provided with a power supply (6).

4. The intelligent detection system for automobile air conditioner refrigerant filling according to any one of claims 1-3, characterized in that, The temperature detector (2) is provided with a starting switch (7), the starting switch (7) is connected with the auxiliary processing chip (21) and is used for controlling the opening and closing of the temperature detector (2).

5. The intelligent refrigerant charging and detecting system for automobile air conditioner of claim 4, wherein The main processing chip (12) is connected with a storage module (8).

6. The intelligent detection system for automobile air conditioner refrigerant filling according to any one of claims 1-3, characterized in that, The temperature detector (2) is plug-connected on the filling device (1).

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