A timer to prevent dry burning

Abstract

The present invention provides a timer for preventing dry burning, comprising: a WIFI receiver 5, a button 6, a first signal board 7, a second signal board 8, a third signal board 14, a first relay 9, a second relay 10, and a third relay 15. The first signal board 7 receives a signal input by the WIFI receiver 5 or a pulse signal sent by manually pressing the button 6, the first signal board 7 transmits the signal to the second signal board 8, the second signal board 8 transmits the signal to the third signal board 14 and the first relay 9 and the second relay 10 respectively, the first relay 9 and the second relay 10 control the opening or closing of a water pump, the third signal board 14 transmits the signal to the third relay 15, the third relay 15 controls the opening or closing of a heating device, the first relay 9 and the second relay 10 turn on the water pump while the third relay 15 turns on the heating device, and before the first relay 9 and the second relay 10 turn off the water pump T1, the third relay 15 turns off the heating device.

Description

Technical Field

[0001] The present invention relates to the technical field of timers, and more particularly to a timer for preventing dry burning. Background Art

[0002] The usage scenarios of timers are very wide and have been widely used in people's daily lives. The timer's scheduled on / off function can meet different scenarios. The current types of timers include: temperature-sensitive timers, humidity-sensitive timers, light-sensitive timers, remote control timers, etc.

[0003] In the application fields of pools, swimming pools, and water heaters, timers are often needed to control water pumps to add water regularly, or to control heaters to heat regularly. However, existing timers can only control one of the water pump or heater, or control both the water pump and the heater at the same time, but have no protective settings and cannot control the order of turning on or off the water pump and the heater, which means that dry burning / empty burning may occur.

[0004] In order to prevent dry burning, in the prior art, such as CN109874163A, the system MCU starts a timer to count. When the timer reaches a specified time value, the system MCU controls the heating tank to trip. The timer is used to count and delay the start of the heating tank. It can be seen that the timer is only a simple timing function, and the system MCU is mainly used to judge and control dry burning.

[0005] The present invention can prevent the pool and swimming pool from drying out by only using a timer, has low cost, and can prevent human operating errors. Summary of the invention

[0006] The object of the present invention is to provide a timer for preventing dry burning, which can prevent a pool or swimming pool from dry burning, has low cost, and can prevent human operation errors.

[0007] A timer for preventing dry burning, comprising: an upper cover 1, a lower cover 2, a WIFI receiver 5, a button 6, a first signal board 7, a second signal board 8, a third signal board 14, a first relay 9, a second relay 10, and a third relay 15, characterized in that the first signal board 7 receives a signal input by the WIFI receiver 5 or a pulse signal sent by manually pressing the button 6, the first signal board 7 transmits the signal to the second signal board 8, the second signal board 8 transmits the signal to the third signal board 14 and the first relay 9 and the second relay 10 respectively, the first relay 9 and the second relay 10 control the opening or closing of an external load water pump, the third signal board 14 transmits the signal to the third relay 15, the third relay 15 controls the opening or closing of an external load heating device, the first relay 9 and the second relay 10 turn on the water pump while the third relay 15 turns on the heating device, and the first relay 9 and the second relay 10 turn off the water pump before the T1 time, and the third relay 15 turns off the heating device.

[0008] Furthermore, before turning off the water pump for a certain period of time, the heating device is turned off first, which can effectively prevent the pool or swimming pool from drying out. The principle of the present invention is that the timer for preventing drying out controls the first relay 9 and the second relay 10 after the above-mentioned signal processing and transmission by sending a wireless signal through the mobile phone APP or pressing the manual button 6, thereby controlling the opening or closing of the water pump. On the other hand, the third relay 15 is controlled by the software program setting inside the third signal board 14, so that the first relay 9 and the second relay 10 turn on the water pump while the third relay 15 turns on the heating device. Before the first relay 9 and the second relay 10 turn off the water pump for a certain period of time, the third relay 15 turns off the heating device, which can prevent human operation errors and effectively prevent the pool or swimming pool from drying out. In addition, the present invention does not use a complex and expensive system MCU, and the effect of preventing the pool or swimming pool from drying out is achieved through a timer, which has a simple structure and low cost.

[0009] Further, T1 is 5-30 minutes.

[0010] Further, preferably, T1 is 10-20 minutes.

[0011] In some embodiments, the WIFI receiver 5 and the button 6 are connected to the first signal board 7, the second signal board is connected to the first relay 9 and the second relay 10, the third signal board 14 is connected to the third relay 15, and the socket 17 fixes the plug 16 and is fixedly connected to the third signal board 14.

[0012] Furthermore, the first relay 9 is connected to the first terminal 121 and the second terminal 122 through the conductive sheet 11, the second relay 10 is connected to the third terminal 123 and the fourth terminal 124 through the conductive sheet 11, the first terminal 121 and the second terminal 122 are connected to the water pump through wires, and the third terminal 123 and the fourth terminal 124 are connected to the same water pump through wires.

[0013] Furthermore, the wires pass through the first wire pressing frame 131 and the second wire pressing frame 132 to connect with the first terminal 121 and the second terminal 122 respectively, and pass through the third wire pressing frame 133 and the fourth wire pressing frame 134 to connect with the third terminal 123 and the fourth terminal 124 respectively.

[0014] Furthermore, the input power L connection terminal 125 is connected to the neutral line, and the input power N connection terminal 126 is connected to the live line.

[0015] In some embodiments, the third signal board 14 includes a software program module 141, which receives a signal input from the second signal board 8. The software program module 141 controls the third relay 15 to turn on the heating device at the same time as the first relay 9 and the second relay 10 turn on the water pump, and controls the third relay 15 to turn off the heating device before T1 time when the first relay 9 and the second relay 10 turn off the water pump.

[0016] Furthermore, the plug 16 includes a positioning plug 161, a first transmission signal plug 162, and a second transmission signal plug 163. The positioning plug 161 plays a positioning role, and the first transmission signal plug 162 and the second transmission signal plug 163 are connected to the heating device through wires.

[0017] Furthermore, the third relay 15 receives the signal input from the third signal board 14, and the third relay 15 outputs the signal to the first transmission signal plug 162 and the second transmission signal plug 163, and the first transmission signal plug 162 and the second transmission signal plug 163 control the opening or closing of the heating device.

[0018] In some embodiments, the heating device is a heater, preferably an instant water heater.

[0019] In some implementations, by setting a switch on the mobile phone, the mobile phone sends a wireless signal which is received by the WIFI receiver 5 , and the WIFI receiver 5 processes the received signal and sends a signal to the first signal board 7 .

[0020] In some embodiments, the switch is set by manually pressing the button 6 , and the button 6 sends a pulse signal to the first signal board 7 .

[0021] In some embodiments, the first signal board 7 is located below the first shielding plate 3 , the first relay 9 , the second relay 10 , and the connection terminal 12 are located below the second shielding plate 4 , and the first signal board 7 is located above the second signal board 8 .

[0022] In some embodiments, the timer for preventing dry burning further includes a protective door 18, which includes a door cover 181 and a door frame 182. The door frame 182 contains a plug 16 and a socket 17. When the door cover 181 is opened, the first transmission signal plug 162 and the second transmission signal plug 163 can be connected by wires. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The left side view of the timer of this application when the cover is opened.

[0024] Figure 2 This is a schematic diagram of the structure of the timer of the present application after removing the upper cover.

[0025] Figure 3 This is a schematic diagram of the timer of the present application after removing the upper and lower covers and the shielding plate.

[0026] Figure 4 This is a top view of the timer of the present application after removing the upper and lower covers and the shielding plate.

[0027] Figure 5 This is a schematic diagram of the timer of the present application after removing the upper and lower covers, the baffle plate and the protective door.

[0028] Description of main component symbols:

[0029]

[0030]

[0031] The accompanying drawings will be described in detail below in conjunction with specific implementation cases. DETAILED DESCRIPTION

[0032] The following examples are described to assist the understanding of the present application, and the examples are not and should not be interpreted in any way as limiting the scope of protection of the present application.

[0033] In the following description, those skilled in the art will recognize that throughout this discussion, components may be described as separate functional units (which may include sub-units), but those skilled in the art will recognize that various components or portions thereof may be divided into separate components or may be integrated together (including within a single system or component).

[0034] In addition, the connections between components or systems in the drawings are not intended to be limited to direct connections. Instead, the data between these components may be modified, reformatted, or otherwise changed by intermediate components. In addition, additional or fewer connections may be used. It should also be noted that the terms "connect," "connect," or "input" should be understood to include direct connections, indirect connections through one or more intermediate devices, and wireless connections.

[0035] Embodiment 1:

[0036] A timer for preventing dry burning, comprising: an upper cover 1, a lower cover 2, a WIFI receiver 5, a button 6, a first signal board 7, a second signal board 8, a third signal board 14, a first relay 9, a second relay 10, and a third relay 15, characterized in that, by setting a switch on a mobile phone, a wireless signal sent by the mobile phone is received by the WIFI receiver 5, the WIFI receiver 5 processes the received signal and sends a signal to the first signal board 7, the first signal board 7 transmits the signal to the second signal board 8, the second signal board 8 transmits the signal to the third signal board 14 and the first relay 9 and the second relay 10 respectively, the first relay 9 and the second relay 10 control the opening or closing of an external load water pump, the third signal board 14 transmits the signal to the third relay 15, the third relay 15 controls the opening or closing of an external load instant water heater, the first relay 9 and the second relay 10 turn on the water pump while the third relay 15 turns on the instant water heater, and the third relay 15 turns on the instant water heater 10 minutes before the first relay 9 and the second relay 10 turn off the water pump.

[0037] The WIFI receiver 5 is connected to the first signal board 7, the second signal board is connected to the first relay 9 and the second relay 10, the third signal board 14 is connected to the third relay 15, the socket 17 is fixed with the plug 16, and is fixedly connected to the third signal board 14. The first relay 9 is connected to the first terminal 121 and the second terminal 122 through the conductive sheet 11, the second relay 10 is connected to the third terminal 123 and the fourth terminal 124 through the conductive sheet 11, the first terminal 121 and the second terminal 122 are connected to the water pump through the wire, and the third terminal 123 and the fourth terminal 124 are connected to the same water pump through the wire. The wires pass through the first wire pressing frame 131 and the second wire pressing frame 132 respectively to connect to the first terminal 121 and the second terminal 122, and the wires pass through the third wire pressing frame 133 and the fourth wire pressing frame 134 respectively to connect to the third terminal 123 and the fourth terminal 124. The input power supply L terminal 125 is connected to the neutral line, and the input power supply N terminal 126 is connected to the live line.

[0038] The third signal board 14 includes a software program module 141. The software program module 141 receives the signal input from the second signal board 8. The software program module 141 controls the third relay 15 to turn on the heating device at the same time as the first relay 9 and the second relay 10 turn on the water pump, and controls the third relay 15 to turn off the heating device before the first relay 9 and the second relay 10 turn off the water pump. The plug 16 includes a positioning plug 161, a first transmission signal plug 162, and a second transmission signal plug 163. The positioning plug 161 plays a positioning role. The first transmission signal plug 162 and the second transmission signal plug 163 are connected to the heating device through wires. The third signal board 14 receives the signal from the second signal board 8, and the third signal board 14 outputs the signal to the third relay 15. The third relay 15 outputs the signal to the first transmission signal plug 162 and the second transmission signal plug 163. The first transmission signal plug 162 and the second transmission signal plug 163 control the opening or closing of the heating device.

[0039] The first signal board 7 is located below the first shielding plate 3, the first relay 9, the second relay 10, and the connection terminal 12 are located below the second shielding plate 4, and the first signal board 7 is located above the second signal board 8. The timer for preventing the pool from drying out also includes a protection door 18, which includes a door cover 181 and a door frame 182. The door frame 182 has a plug 16 and a socket 17. When the door cover 181 is opened, the first transmission signal plug 162 and the second transmission signal plug 163 can be connected by wires.

[0040] Embodiment 2:

[0041] A timer for preventing dry burning, comprising: an upper cover 1, a lower cover 2, a WIFI receiver 5, a button 6, a first signal board 7, a second signal board 8, a third signal board 14, a first relay 9, a second relay 10, and a third relay 15, characterized in that the switch is set by manually pressing the button 6, then the button 6 sends a pulse signal to the first signal board 7, the first signal board 7 transmits the signal to the second signal board 8, the second signal board 8 transmits the signal to the third signal board 14 and the first relay 9 and the second relay 10 respectively, the first relay 9 and the second relay 10 control the opening or closing of an external load water pump, the third signal board 14 transmits the signal to the third relay 15, the third relay 15 controls the opening or closing of an external load instant water heater, the first relay 9 and the second relay 10 turn on the water pump while the third relay 15 turns on the instant water heater, and the third relay 15 turns off the instant water heater 15 minutes before the first relay 9 and the second relay 15 turn off the water pump.

[0042] The button 6 is connected to the first signal board 7, the second signal board is connected to the first relay 9 and the second relay 10, the third signal board 14 is connected to the third relay 15, the socket 17 is fixed with the plug 16, and is fixedly connected to the third signal board 14. The first relay 9 is connected to the first terminal 121 and the second terminal 122 through the conductive sheet 11, the second relay 10 is connected to the third terminal 123 and the fourth terminal 124 through the conductive sheet 11, the first terminal 121 and the second terminal 122 are connected to the water pump through the wire, and the third terminal 123 and the fourth terminal 124 are connected to the same water pump through the wire. The wires pass through the first wire pressing frame 131 and the second wire pressing frame 132 respectively to connect to the first terminal 121 and the second terminal 122, and the wires pass through the third wire pressing frame 133 and the fourth wire pressing frame 134 respectively to connect to the third terminal 123 and the fourth terminal 124. The input power supply L terminal 125 is connected to the neutral line, and the input power supply N terminal 126 is connected to the live line.

[0043] The third signal board 14 includes a software program module 141. The software program module 141 receives the signal input from the second signal board 8. The software program module 141 controls the third relay 15 to turn on the heating device at the same time as the first relay 9 and the second relay 10 turn on the water pump, and controls the third relay 15 to turn off the heating device before the first relay 9 and the second relay 10 turn off the water pump. The plug 16 includes a positioning plug 161, a first transmission signal plug 162, and a second transmission signal plug 163. The positioning plug 161 plays a positioning role. The first transmission signal plug 162 and the second transmission signal plug 163 are connected to the heating device through wires. The third signal board 14 receives the signal from the second signal board 8, and the third signal board 14 outputs the signal to the third relay 15. The third relay 15 outputs the signal to the first transmission signal plug 162 and the second transmission signal plug 163. The first transmission signal plug 162 and the second transmission signal plug 163 control the opening or closing of the heating device.

[0044] The first signal board 7 is located below the first shielding plate 3, the first relay 9, the second relay 10, and the connection terminal 12 are located below the second shielding plate 4, and the first signal board 7 is located above the second signal board 8. The timer for preventing the pool from drying out also includes a protection door 18, which includes a door cover 181 and a door frame 182. The door frame 182 has a plug 16 and a socket 17. When the door cover 181 is opened, the first transmission signal plug 162 and the second transmission signal plug 163 can be connected by wires.

[0045] Although the present application has disclosed multiple aspects and embodiments, other aspects and embodiments will be obvious to those skilled in the art, and several modifications and improvements may be made without departing from the concept of the present application, all of which belong to the protection scope of the present application. The multiple aspects and embodiments disclosed in the present application are only for illustration and are not intended to limit the present application. The actual protection scope of the present application shall be subject to the claims.

Claims

1. A timer for preventing dry burning, comprising: An upper cover (1), a lower cover (2), a WIFI receiver (5), a button (6), a first signal board (7), a second signal board (8), a third signal board (14), a first relay (9), a second relay (10), and a third relay (15), characterized in that the first signal board (7) receives a signal input by the WIFI receiver (5) or a pulse signal sent by manually pressing the button (6), the first signal board (7) transmits the signal to the second signal board (8), the second signal board (8) transmits the signal to the third signal board (14) and the first relay (9) and the second relay (10) respectively, the first relay (9) and the second relay (10) control the opening or closing of an external load water pump, the third signal board (14) transmits the signal to the third relay (15), the third relay (15) controls the opening or closing of an external load heating device, the first relay (9) and the second relay (10) turn on the water pump while the third relay (15) turns on the heating device, and the first relay (9) and the second relay (10) turn off the water pump before the T1 time, the third relay (15) turns off the heating device.

2. The timer for preventing dry burning according to claim 1, characterized in that: T1 is 5-30 minutes.

3. The timer for preventing dry burning according to claim 2, characterized in that: T1 is 10-20 minutes.

4. The timer for preventing dry burning according to claim 1, characterized in that: The WIFI receiver (5) and the button (6) are connected to the first signal board (7), the second signal board (8) is connected to the first relay (9) and the second relay (10), the third signal board (14) is connected to the third relay (15), and the socket (17) is fixedly connected to the plug (16) and is fixedly connected to the third signal board (14).

5. The timer for preventing dry burning according to claim 4, characterized in that: The first relay (9) is connected to the first terminal (121) and the second terminal (122) via a conductive sheet (11); the second relay (10) is connected to the third terminal (123) and the fourth terminal (124) via a conductive sheet (11); the first terminal (121) and the second terminal (122) are connected to a water pump via an electric wire; the third terminal (123) and the fourth terminal (124) are connected to the same water pump via an electric wire; the input power supply L terminal (125) is connected to a neutral wire; and the input power supply N terminal (126) is connected to a live wire.

6. The timer for preventing dry burning according to claim 5, characterized in that: The electric wires are connected to the first connecting terminal (121) and the second connecting terminal (122) by passing through the first wire pressing frame (131) and the second wire pressing frame (132), respectively. The electric wires are connected to the third connecting terminal (123) and the fourth connecting terminal (124) by passing through the third wire pressing frame (133) and the fourth wire pressing frame (134).

7. The timer for preventing dry burning according to claim 1, characterized in that: The third signal board (14) comprises a software program module (141). The software program module (141) receives a signal input from the second signal board (8). The software program module (141) controls the third relay (15) to turn on the heating device at the same time as the time when the first relay (9) and the second relay (10) turn on the water pump, and controls the third relay (15) to turn off the heating device before the time T1 when the first relay (9) and the second relay (10) turn off the water pump.

8. The timer for preventing dry burning according to claim 4, characterized in that: The plug (16) comprises a positioning plug (161), a first transmission signal plug (162), and a second transmission signal plug (163). The positioning plug (161) plays a role of positioning, and the first transmission signal plug (162) and the second transmission signal plug (163) are connected to the heating device through electric wires.

9. The timer for preventing dry burning according to claim 7, characterized in that: The third relay (15) receives a signal from the third signal board (14), and the third relay (15) outputs the signal to the first transmission signal plug (162) and the second transmission signal plug (163), and the first transmission signal plug (162) and the second transmission signal plug (163) control the heating device to be turned on or off.

10. The timer for preventing dry burning according to claim 1, characterized in that: By setting a switch on the mobile phone, the mobile phone sends a wireless signal which is received by the WIFI receiver (5), and the WIFI receiver (5) processes the received signal and sends a signal to the first signal board (7). By manually pressing a button (6) to set the switch, the button (6) sends a pulse signal to the first signal board (7).

Images