A multi-channel detection adjustable power aquarium heating device

Abstract

This utility model discloses a multi-channel adjustable power aquarium heating device, including a heating module and a control module electrically connected by a control cable. The heating module includes an equipment compartment, a heating element mounted at one end of the equipment compartment, and a control cable mounted on the top of the equipment compartment. The control cable is electrically connected to the heating element within the equipment compartment. The control module includes an analog-to-digital converter (ADC), a power regulation unit, and a display control unit. The ADC includes several thermistors and several water level electrodes mounted inside the equipment compartment. The display control unit sets the target temperature or target power. The power regulation unit regulates the heating power of the heating element. Thus, multiple sets of water temperature and level detection elements are distributed to accurately measure water temperature and level data, which are then converted into corresponding electrical signals by the ADC for temperature control or power-off protection. The display control unit uses sine wave zero-crossing tracking detection to change the conduction angle time, achieving wide-range power adjustment and ensuring stable water temperature.

Description

Technical Field

[0001] This utility model relates to the field of aquarium heating equipment technology, and in particular to an adjustable power aquarium heating equipment with multi-channel detection. Background Technology

[0002] Aquarium heating equipment is commonly used in the aquarium industry. It's essential for keeping non-native fish species or providing a stable environment for aquatic pets during winter and breeding seasons. Aquarium heating equipment continuously heats the water in the aquarium, minimizing the impact of external environmental factors. Currently, most aquarium heating equipment on the market is differentiated by its heating power. Users should choose an aquarium heating system with appropriate power based on the aquarium's water volume, fish species, and local climate.

[0003] However, most existing aquarium heating devices have fixed heating power or can only be adjusted within a small range. While they can maintain water temperature well under normal weather conditions, their heating efficiency cannot keep up with the rate of water cooling when the air temperature drops sharply. Conversely, in hot weather, the fixed heating power will cause the water temperature to rise drastically, making it difficult to maintain a stable water temperature in the long term. Furthermore, most existing aquarium heating devices are elongated designs and are mounted to the side of the aquarium via suction cups. As water evaporates from the aquarium, the temperature probe may detach from the water, resulting in inaccurate temperature readings and affecting the safe operation of the aquarium heating device. Utility Model Content

[0004] This embodiment discloses a multi-channel detection adjustable power aquarium heating device, specifically including:

[0005] The heating module and the control module are electrically connected via control cable 3;

[0006] The heating module includes a device compartment 1, an electric heating tube 2 assembled at one end of the device compartment 1, and a control cable 3 assembled on the top of the device compartment 1;

[0007] The control cable 3 is electrically connected to the heating element 2 in the equipment compartment 1;

[0008] The control module includes an analog-to-digital conversion unit, a power regulation unit, and a display control unit;

[0009] The analog-to-digital conversion unit includes a thermistor NTC1 and a water level electrode ST1 mounted on one side of the equipment compartment 1, and a thermistor NTC2 and a water level electrode ST2 mounted on the other side of the equipment compartment 1, for measuring water temperature and water level.

[0010] The display control unit is used to set the target temperature or target power;

[0011] The power control unit drives the electric heating element 2 to operate based on the target power, or dynamically controls the heating power of the electric heating element 2 based on the water temperature and the target temperature.

[0012] As an optional implementation, the thermistor NTC1 outputs a water temperature signal via the conversion chip IC1, and the water level electrode ST1 outputs a water level signal via the conversion chip IC1.

[0013] The thermistor NTC2 outputs a second water temperature signal via the conversion chip IC2, and the water level electrode ST2 outputs a second water level signal via the conversion chip IC2.

[0014] The first water temperature signal and the second water temperature signal are converted into water temperature values ​​AD-DATE by the conversion chip IC3;

[0015] The No. 1 water level signal and the No. 2 water level signal are converted into water level status values ​​DATE by the conversion chip IC3.

[0016] As an optional implementation, the display control unit includes an industrial control chip IC4, a display screen SC, buttons SW+, SW-, and SET.

[0017] As an optional implementation, the analog-to-digital conversion unit outputs the water temperature value AD-DATE to pin 18 of the industrial control chip IC4;

[0018] Pins 4, 5, 6, 7, 8, 9, 10, 11, and 12 of the industrial control chip IC4 control the display screen SC to display the water temperature value AD-DATE and the water level status value DATE.

[0019] As an optional implementation, the SET button is connected to pin 17 of the industrial control chip IC4 to trigger the temperature setting function or the power setting function;

[0020] The SW+ button is connected to pin 27 of the industrial control chip IC4, and the SW- button is connected to pin 28 of the industrial control chip IC4, for inputting the target temperature or target power.

[0021] As an optional implementation, pin 20 of the industrial control chip IC4 is connected to pin 1 of the display screen SC, pin 21 of the industrial control chip IC4 is connected to pin 2 of the display screen SC, pin 22 of the industrial control chip IC4 is connected to pin 3 of the display screen SC, pin 23 of the industrial control chip IC4 is connected to pin 4 of the display screen SC, pin 24 of the industrial control chip IC4 is connected to pin 5 of the display screen SC, pin 25 of the industrial control chip IC4 is connected to pin 6 of the display screen SC, pin 26 of the industrial control chip IC4 is connected to pin 7 of the display screen SC, pin 1 of the industrial control chip IC4 is connected to pin 8 of the display screen SC, pin 2 of the industrial control chip IC4 is connected to pin 9 of the display screen SC, and pin 3 of the industrial control chip IC4 is connected to pin 10 of the display screen SC, for triggering the selection of a display area on the display screen SC for numerical display.

[0022] As an optional implementation, the power regulation unit includes a power switch chip IC5, a linear regulator V1, an optocoupler IC6, and a thyristor Q1;

[0023] The power switch chip IC5 is connected to external AC power, and the optocoupler IC6 is connected in parallel with the industrial control chip IC4 to perform sine wave tracking zero-crossing detection based on the target temperature value.

[0024] As an optional implementation, the optocoupler IC6 controls the thyristor Q1 based on conduction angle control to modulate the output power of the target current;

[0025] The thyristor Q1 outputs the target current to the heating element 2.

[0026] As an optional implementation, the display control unit is connected to the thermistor NTC1, thermistor NTC2, water level electrode ST1 and water level electrode ST2 in the analog-to-digital conversion unit via a waterproof plug COM1;

[0027] The power regulation unit is connected to the heating element 2 in the heating module via a waterproof plug COM2.

[0028] As an optional implementation, the waterproof plug COM1 and the waterproof plug COM2 are disposed at the ends of the control cable 3 in the equipment compartment 1.

[0029] Compared with the prior art, this embodiment has the following beneficial effects:

[0030] In this embodiment, multiple sets of water temperature and level detection elements are distributed to ensure accurate measurement of water temperature and level data. The analog-to-digital conversion unit converts the water temperature and level data into corresponding electrical signals for temperature control or power-off protection. The display and control unit uses AC sine wave zero-crossing tracking to change the conduction angle time, achieving wide-range power adjustment to ensure that the water temperature remains stable within the set target range. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in this embodiment, the accompanying drawings used in the embodiment will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a cross-sectional structural diagram of a multi-channel detection adjustable power aquarium heating device disclosed in this embodiment;

[0033] Figure 2 This is a schematic diagram of the circuit structure of the analog-to-digital conversion unit in a multi-channel detection adjustable power aquarium heating device disclosed in this embodiment;

[0034] Figure 3 This is a schematic diagram of the circuit structure of the power control unit in a multi-channel detection adjustable power aquarium heating device disclosed in this embodiment;

[0035] Figure 4 This is a schematic diagram of the circuit structure of the display control unit in a multi-channel detection adjustable power aquarium heating device disclosed in this embodiment.

[0036] The specific structural component comparison table is as follows:

[0037] Equipment Warehouse 1 electric heating tube 2 Control cables 3 Detailed Implementation

[0038] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0039] Please see Figures 1-4 This embodiment discloses a multi-channel detection adjustable power aquarium heating device, comprising:

[0040] The heating module and the control module are electrically connected via control cable 3;

[0041] The heating module includes an equipment compartment 1, an electric heating tube 2 assembled at one end of the equipment compartment 1, and a control cable 3 assembled on the top of the equipment compartment 1.

[0042] Control cable 3 is electrically connected to heating element 2 in equipment compartment 1;

[0043] The control module includes an analog-to-digital converter, a power regulation unit, and a display control unit;

[0044] The analog-to-digital conversion unit includes a thermistor NTC1 and a water level electrode ST1 mounted on one side of the equipment compartment 1, and a thermistor NTC2 and a water level electrode ST2 mounted on the other side of the equipment compartment 1, for measuring water temperature and water level.

[0045] The display control unit is used to set the target temperature or target power;

[0046] The power control unit drives the electric heating element 2 to operate based on the target power, or dynamically controls the heating power of the electric heating element 2 based on the water temperature and the target temperature.

[0047] Here, multiple sets of water temperature and level detection elements are distributed to ensure accurate measurement of water temperature and level data. The analog-to-digital conversion unit converts the water temperature and level data into corresponding electrical signals for temperature control or power failure protection.

[0048] Furthermore, the display control unit uses the AC sine wave zero-crossing tracking detection signal to change the conduction angle time, thereby achieving a wide range of power regulation and ensuring that the water temperature remains stable within the set target range.

[0049] It should be understood that this embodiment is described using two sets of water temperature and level detection elements as an example. In actual applications, the number of water temperature and level detection elements can be flexibly increased according to actual needs, and the relative positions of the elements can also be flexibly adjusted according to actual needs and product structure design. This application does not impose any specific limitations.

[0050] The control module is an external controller, which allows users to directly control the heating module from the outside via control cable 3, without having to remove it from the water for further adjustment.

[0051] As an optional implementation, the thermistor NTC1 outputs a water temperature signal via the conversion chip IC1, and the water level electrode ST1 outputs a water level signal via the conversion chip IC1.

[0052] Thermistor NTC2 outputs a second water temperature signal via conversion chip IC2, and water level electrode ST2 outputs a second water level signal via conversion chip IC2;

[0053] Water temperature signals No. 1 and No. 2 are converted into water temperature values ​​(AD-DATE) by conversion chip IC3.

[0054] The No. 1 and No. 2 water level signals are converted into water level status values ​​(DATE) by the conversion chip IC3.

[0055] Here, based on the analog signals measured by the dual-ended thermistor and the water level electrode, the water temperature value and the actual water level are accurately converted and output to the display control unit.

[0056] For example, if the water level status value DATE is -1, it means that the entire heating element is above the water surface; if it is 0, it means that the entire heating element is partially above the water surface; if it is 1, it means that the entire heating element is submerged in the water surface.

[0057] As an optional implementation, the display control unit includes an industrial control chip IC4, a display screen SC, buttons SW+, SW-, and SET.

[0058] As an optional implementation, the analog-to-digital converter outputs the water temperature value AD-DATE to pin 18 of the industrial control chip IC4;

[0059] Pins 4, 5, 6, 7, 8, 9, 10, 11, and 12 of the industrial control chip IC4 control the display screen SC, which displays the water temperature value AD-DATE and the water level status value DATE.

[0060] Here, the display screen SC adopts a common cathode dual-color screen, which displays digital signals through several line segments. The industrial control chip converts the digital signals into the line segments that need to be lit and outputs them accordingly.

[0061] As an optional implementation, the SET button is connected to pin 17 of the industrial control chip IC4 to trigger the temperature setting function or the power setting function.

[0062] The SW+ button is connected to pin 27 of the industrial control chip IC4, and the SW- button is connected to pin 28 of the industrial control chip IC4, used to input the target temperature or target power.

[0063] Here, you can enter the temperature setting function or power setting function by pressing the SET button, and then adjust the value by pressing the SW+ and SW- buttons.

[0064] For example, after pressing the SET button, the lower limit of the target temperature can be set. After setting the lower limit of the target temperature, pressing the SET button again will set the upper limit of the target temperature. This allows the target temperature to be limited for adjusting the heating power.

[0065] As an optional implementation, pin 20 of industrial control chip IC4 is connected to pin 1 of display screen SC, pin 21 of industrial control chip IC4 is connected to pin 2 of display screen SC, pin 22 of industrial control chip IC4 is connected to pin 3 of display screen SC, pin 23 of industrial control chip IC4 is connected to pin 4 of display screen SC, pin 24 of industrial control chip IC4 is connected to pin 5 of display screen SC, pin 25 of industrial control chip IC4 is connected to pin 6 of display screen SC, pin 26 of industrial control chip IC4 is connected to pin 7 of display screen SC, pin 1 of industrial control chip IC4 is connected to pin 8 of display screen SC, pin 2 of industrial control chip IC4 is connected to pin 9 of display screen SC, and pin 3 of industrial control chip IC4 is connected to pin 10 of display screen SC, for triggering the selection of the display area on display screen SC to display numerical values.

[0066] Here, the specific area on the display screen SC where the numbers are displayed, and the specific combination of numbers, are determined by the output pins of the industrial control chip IC4. Based on this, the current water temperature, target temperature, heating power, and other values ​​can be displayed intuitively.

[0067] As an optional implementation, the power regulation unit includes a power switch chip IC5, a linear regulator V1, an optocoupler IC6, and a thyristor Q1.

[0068] The power switch chip IC5 is connected to external AC power, and the optocoupler IC6 is connected in parallel with the industrial control chip IC4 to perform sine wave tracking zero-crossing detection based on the target temperature value.

[0069] As an optional implementation, the optocoupler IC6 controls the thyristor Q1 based on conduction angle control to modulate the output power of the target current;

[0070] The thyristor Q1 outputs the target current to the heating element 2.

[0071] Here, based on sine wave tracking zero-crossing detection, the output power can be precisely adjusted without the need for many additional electronic control components, and the adjustment range is relatively wide. As long as the heating element 2 meets the specifications, it can ensure precise temperature control for small fish tanks of various sizes without having to replace them with smaller or larger heating equipment.

[0072] As an optional implementation, the display control unit is connected to the thermistor NTC1, thermistor NTC2, water level electrode ST1 and water level electrode ST2 in the analog-to-digital conversion unit via a waterproof plug COM1;

[0073] The power control unit is connected to the heating element 2 in the heating module via a waterproof plug COM2.

[0074] As an optional implementation, waterproof plugs COM1 and COM2 are located at the ends of control cable 3 in equipment compartment 1.

[0075] Compared with the prior art, this embodiment has the following beneficial effects:

[0076] In this embodiment, multiple sets of water temperature and level detection elements are distributed to ensure accurate measurement of water temperature and level data. The analog-to-digital conversion unit converts the water temperature and level data into corresponding electrical signals for temperature control or power-off protection. The display and control unit uses AC sine wave zero-crossing tracking to change the conduction angle time, achieving wide-range power adjustment to ensure that the water temperature remains stable within the set target range.

Claims

1. A multi-pass detection adjustable power aquarium heating apparatus, characterized by, include: The heating module and the control module are electrically connected by a control cable (3); The heating module includes an equipment compartment (1), an electric heating tube (2) assembled at one end of the equipment compartment (1), and a control cable (3) assembled on the top of the equipment compartment (1). The control cable (3) is electrically connected to the heating element (2) in the equipment compartment (1); The control module includes an analog-to-digital conversion unit, a power regulation unit, and a display control unit; The analog-to-digital conversion unit includes a thermistor NTC1 and a water level electrode ST1 mounted on one side of the equipment compartment (1), and a thermistor NTC2 and a water level electrode ST2 mounted on the other side of the equipment compartment (1), for measuring water temperature and water level; The display control unit is used to set the target temperature or target power; The power control unit drives the electric heating tube (2) to operate based on the target power, or dynamically controls the heating power of the electric heating tube (2) based on the water temperature and the target temperature.

2. A multi-channel detection adjustable power aquarium heating device according to claim 1, characterized in that, include: The thermistor NTC1 outputs a water temperature signal via the conversion chip IC1, and the water level electrode ST1 outputs a water level signal via the conversion chip IC1. The thermistor NTC2 outputs a second water temperature signal via the conversion chip IC2, and the water level electrode ST2 outputs a second water level signal via the conversion chip IC2. The first water temperature signal and the second water temperature signal are converted into water temperature values ​​AD-DATE by the conversion chip IC3; The No. 1 water level signal and the No. 2 water level signal are converted into water level status values ​​DATE by the conversion chip IC3.

3. A multi-channel detection adjustable power aquarium heating device according to claim 2, characterized in that, include: The display control unit includes an industrial control chip IC4, a display screen SC, buttons SW+, SW-, and SET.

4. A multi-channel detection adjustable power aquarium heating apparatus according to claim 3, wherein, include: The analog-to-digital conversion unit outputs the water temperature value AD-DATE to pin 18 of the industrial control chip IC4. Pins 4, 5, 6, 7, 8, 9, 10, 11, and 12 of the industrial control chip IC4 control the display screen SC to display the water temperature value AD-DATE and the water level status value DATE.

5. A multi-channel detection adjustable power aquarium heating apparatus according to claim 4, wherein, include: The SET button is connected to pin 17 of the industrial control chip IC4 to trigger the temperature setting function or the power setting function. The SW+ button is connected to pin 27 of the industrial control chip IC4, and the SW- button is connected to pin 28 of the industrial control chip IC4, for inputting the target temperature or target power.

6. A multi-channel detection adjustable power aquarium heating apparatus according to claim 5, wherein, include: Pin 20 of the industrial control chip IC4 is connected to pin 1 of the display screen SC; pin 21 of the industrial control chip IC4 is connected to pin 2 of the display screen SC; pin 22 of the industrial control chip IC4 is connected to pin 3 of the display screen SC; pin 23 of the industrial control chip IC4 is connected to pin 4 of the display screen SC; pin 24 of the industrial control chip IC4 is connected to pin 5 of the display screen SC; pin 25 of the industrial control chip IC4 is connected to pin 6 of the display screen SC; pin 26 of the industrial control chip IC4 is connected to pin 7 of the display screen SC; pin 1 of the industrial control chip IC4 is connected to pin 8 of the display screen SC; pin 2 of the industrial control chip IC4 is connected to pin 9 of the display screen SC; and pin 3 of the industrial control chip IC4 is connected to pin 10 of the display screen SC, for triggering the selection of a display area on the display screen SC for numerical display.

7. A multi-channel detection adjustable power aquarium heating apparatus according to claim 5, wherein, include: The power regulation unit includes a power switch chip IC5, a linear regulator V1, an optocoupler IC6, and a silicon controlled rectifier Q1. The power switch chip IC5 is connected to external AC power, and the optocoupler IC6 is connected in parallel with the industrial control chip IC4 to perform sine wave tracking zero-crossing detection based on the target temperature value.

8. The adjustable power aquarium heating device with multi-channel detection according to claim 7, characterized in that, include: The optocoupler IC6 controls the thyristor Q1 to modulate the output power of the target current based on the conduction angle control; The thyristor Q1 outputs the target current to the heating element (2).

9. A multi-channel detection adjustable power aquarium heating apparatus according to claim 8, wherein, include: The display control unit is connected to the thermistor NTC1, thermistor NTC2, water level electrode ST1 and water level electrode ST2 in the analog-to-digital conversion unit via a waterproof plug COM1. The power control unit is connected to the heating element (2) in the heating module via a waterproof plug COM2.

10. A multi-channel detection adjustable power aquarium heating apparatus according to claim 9, wherein, include: The waterproof plugs COM1 and COM2 are located at the ends of the control cable (3) in the equipment compartment (1).

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