Multifunctional cooling and heating box with movable four-wheel drive

Abstract

The utility model belongs to the technical field of movable refrigerators, and particularly relates to a multifunctional cooling and heating box with a movable four-wheel drive. The intelligent control system comprises a central integrated circuit processor, a wireless connection module, a driving sensing module, a temperature detection module, a charging module, a four-wheel driving module, a compressor module, a heating module and a digital display module, the signal input end of the central integrated circuit processor is respectively connected with a wireless connection module, a driving sensing module, a temperature detection module and a charging module; the signal output end of the central integrated circuit processor is connected with a four-wheel drive module, a compressor module, a heating module and a digital display module. A structure and a control system of a traditional vehicle-mounted refrigerator are improved, articles can be automatically delivered according to a designed track, and the integrated track learning module can be suitable for more scenes; and the use requirements in a complex scene are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of mobile refrigerators, in particular to a multifunctional cooling and heating box with a mobile four-wheel drive. Background Art

[0002] At present, commonly used car refrigerators can only realize cooling or heating functions; they have single functions, single usage scenarios, and poor convenience of function expansion. In order to meet more usage needs, more functions can be expanded and more usage scenarios can be expanded, such as hotels, restaurants, airports, etc.; remote start and other functions can also be realized through remote terminals; therefore, a multifunctional cold and warm box with mobile four-wheel drive is provided. Utility Model Content

[0003] In order to solve the defects and shortcomings of the prior art, the purpose of the utility model is to provide a multifunctional refrigerator with a mobile four-wheel drive which has a simple structure, a reasonable design and is easy to use. It improves the structure and control system of the traditional car refrigerator, can automatically deliver items according to the designed trajectory, and the integrated trajectory learning module can be applied to more scenarios to meet the usage requirements in complex scenarios.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: it includes a central integrated circuit processor, a wireless connection module, a driving sensing module, a temperature detection module, a charging module, a four-wheel drive module, a compressor module, a heating module, and a digital display module; the signal input end of the central integrated circuit processor is respectively connected to the wireless connection module, the driving sensing module, the temperature detection module, and the charging module; the signal output end of the central integrated circuit processor is respectively connected to the four-wheel drive module, the compressor module, the heating module, and the digital display module.

[0005] Preferably, the wireless connection module comprises a 12V to 3.3V power supply module, a WIFI module, and a level conversion circuit 1; the 12V to 3.3V power supply module supplies power to the WIFI module, and after receiving the wireless signal, the WIFI module is connected to the central integrated circuit processor through signal conversion of the level conversion circuit 1.

[0006] Preferably, the driving sensing module includes an integrated ultrasonic sensor, an ultrasonic transmitter echo receiving circuit, an amplification and shaping circuit, a control circuit, and a second level conversion circuit; the integrated ultrasonic sensor cooperates with the ultrasonic transmitter echo receiving circuit to perform obstacle sensing; the ultrasonic transmitter echo receiving circuit transmits the received echo signal to the amplification and shaping circuit, which is then processed by the amplification and shaping circuit and then transmitted to the control circuit; the control circuit triggers the signal transmission of the ultrasonic transmitter echo receiving circuit through an excitation pulse, and at the same time, the control circuit transmits the signal to the central integrated circuit processor through the second level conversion circuit.

[0007] Preferably, the charging module comprises an AD / DC conversion circuit, a frequency converter, a power output coil, a power receiving charging coil, a rectifier circuit, a battery pack, a battery adapter, a charging chip, a charging current detection, a voltage detection / resistance voltage divider circuit, and a DC / DC transformer circuit; the AD / DC conversion circuit is connected to the frequency converter, the frequency converter is connected to the rectifier circuit through the cooperation of the power output coil and the power receiving charging coil, and the rectifier circuit is connected to the battery pack to form a charging circuit; wherein, the battery adapter is connected to the charging chip and then connected to the battery pack to form two charging circuits; and the charging chip is connected to the central integrated circuit processor through charging current detection, the battery pack is respectively connected to the voltage detection / resistance voltage divider circuit and the DC / DC transformer circuit, and the voltage detection / resistance voltage divider circuit and the DC / DC transformer circuit are connected to the central integrated circuit processor.

[0008] Preferably, the four-wheel drive module comprises a three-phase motor drive integrated chip, a three-phase motor drive power MOS tube, a motor, an angle sensor and a direction control circuit, and a wheel; the three-phase motor drive integrated chip is respectively connected to the three-phase motor drive power MOS tube, the angle sensor and the direction control circuit, the three-phase motor drive power MOS tube, the angle sensor and the direction control circuit are simultaneously connected to the motor for drive control, and the wheel connected to the motor output shaft is connected to the angle sensor and the direction control circuit for rotation speed feedback; the motor and the three-phase motor drive integrated chip are connected to each other.

[0009] Preferably, the compressor module and the heating module are integrated on the same control circuit, which includes a three-phase motor power control MOS tube, a voltage detection circuit 1, a compressor, and a heating component; the three-phase motor power control MOS tube is connected to the three-phase motor drive integrated chip, and the three-phase motor power control MOS tube is connected to the compressor and the heating component for cooling and heating control. At the same time, the three-phase motor power control MOS tube provides voltage feedback to the central integrated circuit processor through the voltage detection circuit 1.

[0010] Preferably, the digital display module comprises an LED driving circuit, a digital-analog display, and a second voltage detection circuit; the LED driving circuit is connected to the digital-analog display for display, and voltage feedback is provided to the central integrated circuit processor through the second voltage detection circuit.

[0011] After adopting the above structure, the utility model has the following beneficial effects:

[0012] 1. Increase the convenience of using the product in multiple environments, and it can run in specified tracks in hotels, large squares, airports and other environments;

[0013] Second, scene expansion can replace the single point of traditional robot placement, combine with the refrigerator function, realize the heat preservation characteristics of different objects, and realize that the refrigerator can be used in a fixed or mobile manner;

[0014] 3. It can be connected to mobile phones or terminal device APP via WIFI to realize basic function operations, remote control, status query, OTA upgrade, designated short-distance route planning and learning, and fixed-point object delivery functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model is described in detail through the following specific implementations and drawings.

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the wireless connection module 2 of the present utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the driving sensing module 3 of the present utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the charging module 5 of the present utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the four-wheel drive module 6 of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the compressor module 7 and the heating module 8 of the utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the digital display module 9 of the present utility model;

[0023] Description of the accompanying drawings: central integrated circuit processor 1, wireless connection module 2, driving sensing module 3, temperature detection module 4, charging module 5, four-wheel drive module 6, compressor module 7, heating module 8, digital display module 9, 12V to 3.3V power supply module 21, WIFI module 22, level conversion circuit 1 23, ultrasonic sensor with integrated transceiver 31, ultrasonic transmitter echo receiving circuit 32, amplification and shaping circuit 33, control circuit 34, level conversion circuit 2 35, AD / DC conversion circuit 50, inverter 51, power output coil 53, Power receiving charging coil 54, rectifier circuit 55, battery pack 56, battery adapter 57, charging chip 58, charging current detection 59, voltage detection / resistance voltage divider circuit 561, DC / DC voltage conversion circuit 562, three-phase motor drive integrated chip 61, three-phase motor drive power MOS tube 62, motor 63, angle sensor and direction control circuit 64, wheel 65, three-phase motor power control MOS tube 71, voltage detection circuit 1 72, compressor 73, heating component 81, LED drive circuit 91, digital analog display 92, voltage detection circuit 2 93. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described below by specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0025] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0026] See Figure 1-Figure 7 As shown, this specific implementation adopts the following technical scheme: it includes a central integrated circuit processor 1, a wireless connection module 2, a driving sensing module 3, a temperature detection module 4, a charging module 5, a four-wheel drive module 6, a compressor module 7, a heating module 8, and a digital display module 9; the signal input end of the central integrated circuit processor 1 is respectively connected to the wireless connection module 2, the driving sensing module 3, the temperature detection module 4, and the charging module 5; the signal output end of the central integrated circuit processor 1 is respectively connected to the four-wheel drive module 6, the compressor module 7, the heating module 8, and the digital display module 9.

[0027] Among them, the wireless connection module 2 includes a 12V to 3.3V power supply module 21, a WIFI module 22, and a level conversion circuit 23; the 12V to 3.3V power supply module 21 supplies power to the WIFI module 22, and after the WIFI module 22 receives the wireless signal, it is connected to the central integrated circuit processor 1 through the signal conversion of the level conversion circuit 23.

[0028] In addition, the driving sensing module 3 includes an integrated ultrasonic sensor 31, an ultrasonic transmitter echo receiving circuit 32, an amplification and shaping circuit 33, a control circuit 34, and a level conversion circuit 2 35; the integrated ultrasonic sensor 31 and the ultrasonic transmitter echo receiving circuit 32 cooperate to perform obstacle sensing; the ultrasonic transmitter echo receiving circuit 32 transmits the received echo signal to the amplification and shaping circuit 33, and after being processed by the amplification and shaping circuit 33, it is transmitted to the control circuit 34, and the control circuit 34 triggers the signal transmission of the ultrasonic transmitter echo receiving circuit 32 through an excitation pulse. At the same time, the control circuit 34 transmits the signal to the central integrated circuit processor 1 through the level conversion circuit 2 35.

[0029] Furthermore, the charging module 5 comprises an AD / DC conversion circuit 50, a frequency converter 51, a power output coil 53, a power receiving charging coil 54, a rectifier circuit 55, a battery pack 56, a battery adapter 57, a charging chip 58, a charging current detection 59, a voltage detection / resistance voltage divider circuit 561, and a DC / DC voltage conversion circuit 562; the AD / DC conversion circuit 50 is connected to the frequency converter 51, and the frequency converter 51 is connected to the rectifier circuit 55 through the cooperation of the power output coil 53 and the power receiving charging coil 54, and the rectifier circuit 55 is connected to the battery pack 56 to form a charging circuit; wherein the battery adapter 57 is connected to the charging chip 58 and then connected to the battery pack 56 to form two charging circuits; and the charging chip 58 is connected to the central integrated circuit processor 1 through the charging current detection 59, and the battery pack 56 is respectively connected to the voltage detection / resistance voltage divider circuit 561 and the DC / DC voltage conversion circuit 562, and the voltage detection / resistance voltage divider circuit 561 and the DC / DC voltage conversion circuit 562 are connected to the central integrated circuit processor 1.

[0030] Furthermore, the four-wheel drive module 6 includes a three-phase motor drive integrated chip 61, a three-phase motor drive power MOS tube 62, a motor 63, an angle sensor and direction control circuit 64, and a wheel 65; the three-phase motor drive integrated chip 61 is respectively connected to the three-phase motor drive power MOS tube 62, the angle sensor and direction control circuit 64, and the three-phase motor drive power MOS tube 62, the angle sensor and direction control circuit 64 are simultaneously connected to the motor 63 for drive control, and the wheel 65 connected to the output shaft of the motor 63 is connected to the angle sensor and direction control circuit 64 for rotation speed feedback; the motor 63 and the three-phase motor drive integrated chip 61 are interconnected.

[0031] Furthermore, the compressor module 7 and the heating module 8 are integrated on the same control circuit, which includes a three-phase motor power control MOS tube 71, a voltage detection circuit 72, a compressor 73, and a heating component 81; the three-phase motor power control MOS tube 71 is connected under the three-phase motor drive integrated chip 61, and the three-phase motor power control MOS tube 71 is connected to the compressor 73 and the heating component 81 for cooling and heating control. At the same time, the three-phase motor power control MOS tube 71 performs voltage feedback to the central integrated circuit processor 1 through the voltage detection circuit 72.

[0032] Furthermore, the digital display module 9 includes an LED driving circuit 91, a digital-analog display 92, and a second voltage detection circuit 93; the LED driving circuit 91 is connected to the digital-analog display 92 for display, and voltage feedback is performed on the central integrated circuit processor 1 through the second voltage detection circuit 93.

[0033] The working principle of this specific implementation is as follows: 1. After the WIFI module of the control mainboard is powered on, it is connected to an available WIFI hotspot through settings, connected to the APP of a mobile phone or terminal device through the background, and the APP and the mobile refrigerator are connected and interacted through a dedicated protocol, thereby achieving the purpose of controllability;

[0034] 2. Then learn the action route through the APP and set the driving trajectory;

[0035] 3. After setting the delivery route destination, press Start. After the mobile refrigerator receives the running command, the MCU sends the corresponding command to the local four-wheel motor drive through UART and starts to drive along the set track. Ultrasonic sensors are installed around the mobile refrigerator to achieve automatic avoidance of pedestrians, fixed objects or other obstacles. After arriving at the set destination, it receives user operations through voice prompts, or the APP prompts that the operation is completed.

[0036] 4. The mobile refrigerator has an automatic wireless charging function. When the battery voltage of the mobile refrigerator is lower than the set value, it will automatically move to a fixed wireless charging station to replenish power. It can also use the APP voice reminder to remind the user to manually connect to the mains for charging.

[0037] This specific implementation method increases the convenience of using the product in multiple environmental states, and can run on specified trajectories in environments such as hotels, large squares, and airports; scene expansion can replace the singleness of traditional robot delivery points, and combine with the refrigerator function to achieve the heat preservation characteristics of different objects, so that the refrigerator can be used in a fixed or mobile manner. It can be interconnected with a mobile phone or terminal device APP via WIFI to achieve basic function operations, remote control, status query, OTA upgrade, designated short-distance route planning and learning, and realize fixed-point object delivery functions, etc.

[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A multifunctional cooling and heating box with mobile four-wheel drive, characterized in that: It comprises a central integrated circuit processor, a wireless connection module, a driving sensing module, a temperature detection module, a charging module, a four-wheel drive module, a compressor module, a heating module, and a digital display module; the signal input end of the central integrated circuit processor is respectively connected to the wireless connection module, the driving sensing module, the temperature detection module, and the charging module; the signal output end of the central integrated circuit processor is respectively connected to the four-wheel drive module, the compressor module, the heating module, and the digital display module.

2. A multifunctional cooling and heating box with mobile four-wheel drive according to claim 1, characterized in that: The wireless connection module comprises a 12V to 3.3V power supply module, a WIFI module and a level conversion circuit; the 12V to 3.3V power supply module supplies power to the WIFI module, and after receiving the wireless signal, the WIFI module is connected to the central integrated circuit processor through the signal conversion of the level conversion circuit.

3. A multifunctional cooling and heating box with mobile four-wheel drive according to claim 1, characterized in that: The driving sensing module includes an integrated ultrasonic sensor, an ultrasonic transmitter echo receiving circuit, an amplification and shaping circuit, a control circuit, and a level conversion circuit; the integrated ultrasonic sensor cooperates with the ultrasonic transmitter echo receiving circuit to perform obstacle sensing; The ultrasonic transmitter echo receiving circuit transmits the received echo signal to the amplification and shaping circuit, which is then processed by the amplification and shaping circuit and then transmitted to the control circuit. The control circuit triggers the signal transmission of the ultrasonic transmitter echo receiving circuit through an excitation pulse. At the same time, the control circuit transmits the signal to the central integrated circuit processor through the level conversion circuit 2.

4. A multifunctional cooling and heating box with mobile four-wheel drive according to claim 1, characterized in that: The charging module includes an AD / DC conversion circuit, a frequency converter, a power output coil, a power receiving charging coil, a rectifier circuit, a battery pack, a battery adapter, a charging chip, a charging current detection, a voltage detection / resistance voltage divider circuit, and a DC / DC voltage conversion circuit; the AD / DC conversion circuit is connected to the frequency converter, and the frequency converter is connected to the rectifier circuit through the cooperation of the power output coil and the power receiving charging coil, and the rectifier circuit is connected to the battery pack to form a charging circuit; wherein, the battery adapter is connected to the charging chip and then connected to the battery pack to form two charging circuits; and the charging chip is connected to the central integrated circuit processor through charging current detection, and the battery pack is respectively connected to the voltage detection / resistance voltage divider circuit and the DC / DC voltage conversion circuit, and the voltage detection / resistance voltage divider circuit and the DC / DC voltage conversion circuit are connected to the central integrated circuit processor.

5. A multifunctional cooling and heating box with mobile four-wheel drive according to claim 4, characterized in that: The four-wheel drive module comprises a three-phase motor drive integrated chip, a three-phase motor drive power MOS tube, a motor, an angle sensor and a direction control circuit, and a wheel; the three-phase motor drive integrated chip is respectively connected to the three-phase motor drive power MOS tube, the angle sensor and the direction control circuit, the three-phase motor drive power MOS tube, the angle sensor and the direction control circuit are simultaneously connected to the motor for drive control, and the wheel connected to the motor output shaft is connected to the angle sensor and the direction control circuit for rotation speed feedback; the motor and the three-phase motor drive integrated chip are connected to each other.

6. A multifunctional cooling and heating box with mobile four-wheel drive according to claim 5, characterized in that: The compressor module and the heating module are integrated on the same control circuit, which includes a three-phase motor power supply control MOS tube, a voltage detection circuit 1, a compressor, and a heating component; the three-phase motor power supply control MOS tube is connected to the three-phase motor drive integrated chip, and the three-phase motor power supply control MOS tube is connected to the compressor and the heating component for cooling and heating control. At the same time, the three-phase motor power supply control MOS tube performs voltage feedback to the central integrated circuit processor through the voltage detection circuit 1.

7. A multifunctional cooling and heating box with mobile four-wheel drive according to claim 6, characterized in that: The digital display module comprises an LED driving circuit, a digital-analog display, and a second voltage detection circuit; the LED driving circuit is connected to the digital-analog display for display, and voltage feedback is performed to the central integrated circuit processor through the second voltage detection circuit.

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