A portable vehicle-mounted water maker suitable for desert environments

Abstract

The present invention belongs to the field of automotive equipment, and more particularly, relates to a portable, on-vehicle water generator suitable for use in desert environments. Specifically, it is a water generator powered by a vehicle's power supply and suitable for use in extreme environments such as deserts. A notable feature of this water generator is that, in extremely dry environments such as deserts, the portable on-vehicle water generator connects to the vehicle's power supply jack. The semiconductors within the device utilize the thermoelectric effect to convert electrical energy into thermal energy, creating a relatively low-temperature metal cooling surface that condenses water vapor in the air into fresh water. This fresh water is drinkable and can also be used to replenish water for other vehicle equipment.

Description

Technical Field

[0001] The present invention belongs to the field of automobile application equipment, and in particular relates to a vehicle-mounted water-making device, specifically a portable vehicle-mounted water-making machine suitable for desert environments. Background Art

[0002] Common water production equipment includes seawater desalination devices, rainwater collection devices, and freshwater filtration devices. These types of water production equipment generally use the principle of collecting, desalinating, or filtering existing water resources. Therefore, they require other water resources and are not practical in desert environments where water resources are scarce.

[0003] In a desert environment, there are no public reports on the production and manufacturing of vehicle-mounted water-making machines that can produce drinking water, nor are there any published papers or patents. Summary of the Invention

[0004] The present invention aims to provide a portable, vehicle-mounted water generator suitable for use in desert environments for travelers and field research and construction workers. Equipped with this device, a vehicle can produce drinkable fresh water in dry environments such as deserts. It can also be used for emergency water production during field operations using a single-phase civilian power source. Furthermore, the device is portable and plug-and-play when connected to a vehicle power source or a single-phase civilian power source.

[0005] To produce fresh water in dry environments like deserts using a vehicle's power supply, the water generator utilizes a semiconductor-based water production process. When powered, the thermoelectric effect of the semiconductor causes water vapor to condense at its cold end, producing drinkable fresh water even when other water resources are scarce. Equipped with a connector and power module that connects to the vehicle's power outlet, the water generator is compact and lightweight, making it portable.

[0006] To achieve the above object, the technical solution of the present invention is:

[0007] The present invention provides a portable vehicle-mounted water maker suitable for desert environments. The water maker structure includes a power module 1, a connector 2, a handle 3, a display circuit 4, a control circuit 6, a water-making semiconductor 7, a fan 8, a radiator 9, a fresh water collector 10, and a water maker housing 11.

[0008] The power module is located inside the water maker housing and is compatible with vehicle-mounted DC power, vehicle-mounted AC power, and civilian AC power inputs.

[0009] The connector is compatible with three types of power interfaces, including a vehicle-mounted DC power interface, an AC power interface, and a connector connected to a civilian AC power jack. The external power supply is connected to the power module via the connector.

[0010] The handle is located on the top of the water maker housing and can be bent to the side;

[0011] The display circuit is located on the surface of the water maker housing, and displays temperature, humidity, dew point temperature, water maker working status, water production or other information. The display circuit sends automatic or manual working mode switching instructions to the control circuit;

[0012] The control circuit includes a temperature and humidity sensor, a photoelectric liquid level sensor, an analog sampling circuit, a core computing circuit, a communication circuit, and an output circuit. The temperature and humidity sensor is located outside the water maker housing and collects the temperature and humidity of the air near the water maker. The photoelectric liquid level sensor collects liquid level information from the fresh water collector. The analog sampling circuit, core computing circuit, communication circuit, and output circuit are integrated on a single control circuit board.

[0013] The information collected by the temperature and humidity sensor and the photoelectric liquid level sensor is transmitted to the analog sampling circuit, which performs analog-to-digital conversion on the temperature, humidity and liquid level sampling signals and sends the digital signals to the core operation circuit. The core operation circuit calculates the dew point temperature based on the air temperature and humidity table and interpolation method, and controls the output circuit output when the water production conditions are met. The core operation circuit communicates through the communication circuit; the output circuit controls the power supply and power off to the water production semiconductor 7 and the fan 8;

[0014] The water-generating semiconductors are N parallel-connected, sheet-shaped PN-type semiconductor modules, positioned on the outer surface of the water generator housing. These modules are tilted or perpendicular to the ground, with a cold end and a hot end facing outward, while the hot end is attached to the heat sink. The housing surrounding the water-generating semiconductors is louvered, with the fan secured to the inside of the louvered surfaces.

[0015] The fresh water collector consists of two parts. One part is fixed below the cold end of the water-making semiconductor 7 to collect water droplets condensed on the cold end surface of the water-making semiconductor 7. The other part is detachable and connected to the fixed part through a bayonet or screw.

[0016] After the DC12V voltage is input, the power module has diodes connected in series at the positive and negative poles respectively, and the two diodes are connected in parallel to the two ends of the capacitor; after the AC220V voltage is input, a single-phase transformer and a single-phase rectifier bridge are arranged, and the output end of the rectifier bridge is connected to the two ends of the capacitor; DC12V power is provided to the control circuit, display circuit, water-making semiconductor and fan.

[0017] The cable of the connector can be housed in the water making machine housing 11 .

[0018] The photoelectric liquid level sensor is installed at the edge of the interface between the fixed part and the detachable part of the fresh water collector.

[0019] The photoelectric liquid level sensor measures the liquid level by releasing laser light at a certain angle and monitoring the reflected position.

[0020] The angle of the laser is specifically the angle between the position of the photoelectric liquid level sensor and the center of the bottom of the detachable part.

[0021] The structural parts of the water making machine are compact in structure, small in size, light in weight and easy to carry.

[0022] The beneficial effects of the present invention are:

[0023] 1. Provide a portable vehicle-mounted water generator suitable for desert environments to travel enthusiasts and field research and construction workers;

[0024] 2. After the car is equipped with the water maker, it can produce fresh water that can be directly drunk in dry environments such as deserts. The fresh water produced by the water maker is condensed from moisture in the air;

[0025] 3. The water generator can be connected to a civilian single-phase power supply to provide emergency water when operating in dry outdoor environments;

[0026] 4. The water making machine can produce fresh water without other water resources;

[0027] 5. The water making machine is portable and can be plugged and played after being connected to a vehicle power supply or a civilian single-phase power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a structural schematic diagram of a portable vehicle-mounted water generator suitable for desert environments according to the present invention;

[0029] Figure 2 A schematic circuit diagram of a connector and a power module according to the present invention;

[0030] Figure 3 This is a schematic diagram of the water production working principle involved in the present invention;

[0031] Figure 4 This is a schematic diagram of water production detection according to the present invention;

[0032] Figure 5 This is a circuit control diagram of an embodiment of the present invention. DETAILED DESCRIPTION

[0033] With reference to the accompanying drawings and embodiments, the technical solution of the present invention is further described in detail as follows:

[0034] In this embodiment, Figure 1As shown, a portable vehicle-mounted water maker suitable for desert environments has an overall dimension (width × height × depth) of 210mm × 210mm × 150mm and weighs about 1Kg. The main structure includes: a power module 1, a connector 2, a handle 3, a display circuit 4, a temperature and humidity sensor 5, a control circuit 6, a water-making semiconductor 7, a fan 8, a radiator 9, a fresh water collector 10, and a water maker housing 11.

[0035] like Figure 2 As shown, the power module 1 can adapt to DC12V, DC24V and AC220V inputs. After the DC12V voltage is input, the positive and negative poles are connected in series with diodes respectively, and the two diodes are connected in parallel to the two ends of the capacitor; after the AC220V voltage is input, a single-phase transformer and a single-phase rectifier bridge are arranged, and the output end of the rectifier bridge is connected to the two ends of the capacitor; DC12V power is provided to the control circuit, display circuit, water-making semiconductor and fan.

[0036] Connector 2 can adapt to three types of power interfaces, including a vehicle-mounted DC12V power interface, a vehicle-mounted DC24V power interface, a vehicle-mounted AC220V interface, and an interface connected to a residential AC220V power jack. When the water maker is not in use, the connector cable can be neatly placed inside the water maker housing 11 and the cover can be closed.

[0037] The handle 3 is arranged on the top of the water making machine and can be bent to the side. After being pulled up, the water making machine can be lifted by holding the handle.

[0038] The display circuit 4 communicates with the control circuit 6, which transmits temperature, humidity, dew point temperature, water generator operating status, and water production to the display circuit 4. The display circuit 4 can also signal the control circuit 6 whether to switch from automatic to manual operating mode. The control circuit 6 defaults to automatic mode, automatically starting water production based on temperature and humidity conditions upon power-up. The operating mode can also be changed to manual by pressing buttons on the display circuit 4. The water generator operating status is displayed by an indicator light. Other data is displayed in digital format, such as a water production rate of 30%. The display circuit can also display fault codes, such as E1, indicating that the dew point temperature is too low, close to 0°C, and water production is not possible.

[0039] The temperature and humidity sensor 5 is a component of the control circuit 6. The temperature and humidity sensor 5 is installed outside the water making machine housing 11 to facilitate contact with the outside air. The temperature and humidity sensor 5 collects the temperature and humidity of the air near the water making machine.

[0040] The control circuit 6 also includes an analog sampling circuit, a core computing circuit, a communication circuit, an output circuit, and a photoelectric liquid level sensor. These circuits are integrated onto a single control circuit board, mounted on top of the water generator. The photoelectric liquid level sensor is mounted on the fixed portion of the fresh water collector 10.

[0041] The temperature and humidity sensor 5 and the photoelectric liquid level sensor collect information and transmit the sampled signals to the analog sampling circuit of the control circuit 6. The analog sampling circuit then performs analog-to-digital conversion on the temperature, humidity, and liquid level sampled signals and sends the digital signals to the core computing circuit. The core computing circuit calculates the dew point temperature based on a table lookup and interpolation of the air temperature and humidity. When the water production conditions are met, the core computing circuit controls the output circuit output. The core computing circuit communicates via the communication circuit. Given the extremely dry desert environment and the large temperature difference between morning and evening, the temperature and humidity sensor is used to accurately calculate the dew point temperature based on the current temperature and humidity, so that the appropriate current can be used to control the water production semiconductor, saving power and avoiding unsuccessful water production.

[0042] The control circuit 6 controls the supply and cut-off of power to the water-making semiconductor 7 and the fan 8 through its output circuit, thereby starting and stopping the water-making semiconductor 7 and the fan 8.

[0043] The water-generating semiconductor 7 is composed of four PN-type semiconductor modules, model 81574TZ461312-01, connected in parallel. Control circuit 6 controls the power flow to the semiconductors, generating electron-hole pairs near the junctions, reducing internal energy and temperature, and absorbing heat to the outside world, known as the cold junction. The other end, due to the recombination of electron-hole pairs, increases internal energy and temperature, and releases heat to the environment, known as the hot junction. The cold junction and hot junction are located on opposite sides of the semiconductor, with the hot junction directly bonded to the heat sink via silicone. Figure 1 When water vapor in the air encounters the cold end of the water-making semiconductor 7, which is lower than the dew point temperature, it will condense into water on the surface of the cold end.

[0044] The four semiconductor modules of the water-making semiconductor 7 are laid out in a diamond shape. The hot ends of the four semiconductor modules are glued to the radiator 9 with silicone, and the cold ends face outward. The water-making machine housing 11 is designed as a louver near the water-making semiconductor 7 to facilitate air inflow.

[0045] like Figure 1 As shown, the water-generating semiconductor 7, radiator 9, and fan 8 are arranged from the outside inward. They are used to cool the heat generated by the hot end of the water-generating semiconductor 7. Fan 8 facilitates heat dissipation and air circulation. Fan 8 is fixed to the louver on the back of the water-generating machine housing 11.

[0046] like Figure 4 As shown, the fresh water collector 10 consists of two parts. One part is fixed below the cold end of the water-making semiconductor 7 to collect water droplets condensed on the surface of the cold end of the water-making semiconductor 7 and dripping. The other part is detachable, and the fixed part and the detachable part are connected by an open screw.

[0047] The fixed part of the fresh water collector 10 emits light at a certain angle to the bottom of the detachable part at a fixed time, and collects the position of the reflected light from the detachable part. The signal is fed back to the control circuit 6, which calculates the height of the liquid level and the amount of fresh water produced by monitoring the reflected light position. Figure 4 As shown, Figure 4 There is a photoelectric liquid level sensor at the interface of the water-making semiconductor in the fixed part of the fresh water collector, which can achieve the function of measuring the distance and liquid level by releasing laser at a certain angle and monitoring the reflection position. Figure 4 (a) The collector is empty and light is reflected from the bottom of the removable part of the fresh water collector 10 back to the fixed part. Figure 4 (b) The collector collects half of its capacity of water, and the optical fiber is reflected from the water surface of the detachable part of the fresh water collector 10 back to the fixed part.

[0048] like Figure 5 As shown, the power module of the present invention can be directly connected to a DC power supply 12V and an AC power supply 220V through a connector, and provide a 12V DC power supply to the control circuit module. Figure 5 The control circuit shown completes the control of the display circuit module, the fan module and the water production module, wherein the fan module and the water production module are simultaneously controlled by the same signal of the control circuit.

[0049] The working principle of the water making machine is as follows Figure 3 As shown, the connector is connected to an external power supply, and the water making machine is ready to make water; the temperature and humidity sensor reads the air temperature and humidity information, the photoelectric liquid level sensor collects the liquid level information of the fresh water collector, and then transmits the sampling signal to the analog sampling circuit in the control circuit. The analog sampling circuit performs analog-to-digital conversion on the temperature, humidity and liquid level sampling signals, and sends the digital signal to the core operation circuit. The core operation circuit calculates the water production amount based on the liquid level information, and calculates the dew point temperature based on the air temperature and humidity table lookup and interpolation method; if the set dew point temperature condition is not reached, the fault code E1 is displayed on the display circuit; if the water production condition is met, the core operation circuit communicates with the display circuit via the communication circuit, and the display circuit displays the current air temperature, humidity, dew point temperature, water production amount, working status and other information. The display circuit can send automatic or manual working mode conversion instructions to the control circuit, and send water production instructions. The control circuit 6 controls the power supply and power off to the water production semiconductor 7 and fan 8 through its output circuit to start and stop the water production semiconductor 7 and fan 8. When producing water, the liquid level information is fed back through the photoelectric liquid level sensor, and the current air temperature and humidity information is fed back through the temperature and humidity sensor to determine whether to continue producing water; when the water production reaches the target liquid level, water production is stopped.

[0050] It will be understood that the present invention is described by way of some embodiments, and it will be appreciated by those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A portable vehicle-mounted water generator suitable for desert environments, characterized in that: The water making machine structure comprises a power module (1), a connector (2), a handle (3), a display circuit (4), a control circuit (6), a water making semiconductor (7), a fan (8), a radiator (9), a fresh water collector (10), and a water making machine housing (11); The power module (1) is located inside the water making machine housing (11), and the power module (1) is adapted to vehicle-mounted DC power supply, vehicle-mounted AC power supply, and civilian AC power supply input; The connector (2) is adapted to three types of power interfaces, including a vehicle-mounted DC power interface, an AC power interface, and a connector connected to a civilian AC power socket; an external power supply is connected to the power module (1) via the connector (2); The handle (3) is located at the top of the water making machine housing (11) and can be bent to the side; The display circuit (4) is located on the surface of the water making machine housing (11), and displays the temperature, humidity, dew point temperature, working status of the water making machine, and water production volume. The display circuit (4) sends an automatic or manual working mode switching instruction to the control circuit (6); The control circuit (6) includes a temperature and humidity sensor (5), a photoelectric liquid level sensor, an analog sampling circuit, a core operation circuit, a communication circuit, and an output circuit; the temperature and humidity sensor (5) is located outside the water making machine housing (11) and collects the temperature and humidity of the air near the water making machine; the photoelectric liquid level sensor collects the liquid level information of the fresh water collector (10); the analog sampling circuit, the core operation circuit, the communication circuit, and the output circuit are integrated on a control circuit board; The information collected by the temperature and humidity sensor (5) and the photoelectric liquid level sensor is transmitted to the analog sampling circuit, which performs analog-to-digital conversion on the temperature, humidity and liquid level sampling signals and sends the digital signals to the core operation circuit. The core operation circuit calculates the dew point temperature based on the air temperature and humidity table and interpolation method, and controls the output of the output circuit when the water production conditions are met. The core operation circuit communicates via the communication circuit; the output circuit controls the power supply and power off to the water production semiconductor (7) and the fan (8); The water-making semiconductor (7) is a plurality of N parallel-connected sheet-shaped PN-type semiconductor modules, which are tilted or perpendicular to the ground as a whole and are located on the outer surface of the water-making machine housing (11). The semiconductor module is divided into a cold end face and a hot end face, the cold end face faces outward and contacts the air, and the hot end face is adhered to the radiator (9); the shell surface of the water-making machine housing (11) around the water-making semiconductor (7) is a louver, and the fan (8) is fixed on the inner side of the louver of the water-making machine housing (11); The fresh water collector (10) comprises two parts, one part being fixed below the cold end of the water-making semiconductor (7) to collect water droplets condensed on the cold end surface of the water-making semiconductor (7), and the other part being detachable and connected to the fixed part via a bayonet or screw. The photoelectric liquid level sensor is installed at the edge of the interface between the fixed part and the detachable part of the fresh water collector (10); the photoelectric liquid level sensor measures the liquid level by releasing a laser at a certain angle and monitoring the reflected position; the angle of the laser is specifically the angle between the position of the photoelectric liquid level sensor and the bottom center of the detachable part.

2. The portable vehicle-mounted water generator suitable for desert environments according to claim 1, characterized in that: The power module (1) is connected to diodes in series with the positive and negative electrodes after inputting a DC12V voltage, and the two diodes are connected in parallel to the two ends of the capacitor; a single-phase transformer and a single-phase rectifier bridge are arranged after inputting an AC220V voltage, and the output end of the rectifier bridge is connected to the two ends of the capacitor; and a DC12V power supply is provided to the control circuit (6), the display circuit (4), the water-making semiconductor (7) and the fan (8).

3. The portable vehicle-mounted water generator suitable for desert environments according to claim 1, characterized in that: The cable of the connector can be housed in the water making machine housing (11).

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