Heater

Abstract

The utility model provides a heater which comprises a heater body and a driving controller, the heater body comprises a heating rod and a temperature detection probe, and the driving controller comprises a controller shell and a control circuit board. The control circuit board comprises an input protection module, a rectification filtering module connected with the input protection module, a power conversion module connected with the rectification filtering module, a 5V output module connected with the power conversion module, a main control module connected with the 5V output module, and a touch function module, an on-off control module and a temperature detection module which are respectively connected with the main control module; the device comprises an on-off control module, a temperature detection module, a temperature display module, an indicating lamp module, a buzzer module, and a heating control module connected with the on-off control module, and the on-off control module is also connected with the temperature detection module. The heating rod is connected with the heating control module, and a temperature detection probe is connected with the temperature detection module. By adopting the scheme, the heater can be accurately controlled to heat through the control circuit board.

Description

Technical Field

[0001] This utility model belongs to the field of heater technology, and specifically relates to a heater. Background Technology

[0002] In existing technologies, heaters are generally used to heat water sources, typically for fish tanks, portable swimming pools, and bathtubs. Traditional heaters prevent dry burning by using temperature detectors. That is, if the temperature detector detects that the water temperature has not reached the preset value, it will continue to heat until the temperature detector detects that the water temperature has reached the preset value, at which point it will stop heating. However, the control circuit board of traditional heaters can only perform the logical judgment function of the temperature detector to control the heating rod to turn on and off. Its function is relatively simple and cannot meet people's needs for precise control of the heater, nor can it meet people's growing needs. Therefore, designing a heater that can be precisely controlled and is sufficiently safe has become an urgent problem to be solved by those skilled in the art. Utility Model Content

[0003] The main objective of this invention is to provide a heater in which a drive controller is incorporated. The control circuit board includes: an input protection module, a rectifier and filter module connected to the input protection module, a power conversion module connected to the rectifier and filter module, a 5V output module connected to the power conversion module, a main control module connected to the 5V output module, a touch function module, an on / off control module, a temperature detection module, a temperature display module, an indicator light module, and a buzzer module, all connected to the main control module. A control heating module is also connected to the on / off control module, which is further connected to the water shortage detection module and the temperature detection module. A heating rod is connected to the control heating module, and a temperature detection probe is connected to the temperature detection module. Using this solution, firstly, by incorporating an input protection module into the control circuit board, the heater can be promptly powered off in case of input overload, thus protecting user safety. Secondly, by including a touch function module, a temperature display module, an indicator light module, and a buzzer module in the control circuit board, the heater temperature can be precisely controlled, and the user can be promptly alerted when heating is complete, thereby improving the user experience while maintaining precise control.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] A heater includes: a heater body and a drive controller disposed on an external power supply line of the heater body. The heater body includes: a heating rod and a temperature detection probe. The drive controller includes: a controller housing and a control circuit board disposed within the controller housing.

[0006] The control circuit board includes: an input protection module, a rectifier and filter module connected to the input protection module, a power conversion module connected to the rectifier and filter module, a 5V output module connected to the power conversion module, a main control module connected to the 5V output module, a touch function module, an on / off control module, a temperature detection module, a temperature display module, an indicator light module, and a buzzer module, all connected to the main control module, and a control heating module connected to the on / off control module. The on / off control module is also connected to the temperature detection module.

[0007] The heating rod is connected to the heating control module, and a temperature detection probe is connected to the temperature detection module.

[0008] As a preferred embodiment of the heater, the heater body further includes two water separation detection probes, and the control circuit board module further includes a water shortage detection module; the on / off control module is also connected to the water shortage detection module, and the two water separation detection probes are connected to the water shortage detection module.

[0009] As a preferred embodiment of the heater, the input protection module is a fuse, and the rectifier filter module includes a rectifier bridge DB1; one end of the input protection module is connected to the live wire, the other end of the input protection module is connected to the first pin of the rectifier bridge BD1, and the third pin of the rectifier bridge BD1 is connected to the neutral wire.

[0010] As a preferred embodiment of the heater, the rectifier filter module further includes: capacitor EC1, capacitor EC2, and inductor L1; one end of capacitor EC1 is connected to one end of inductor L1 at the second pin of rectifier bridge BD1, the other end of capacitor EC1 is connected to the fourth pin of rectifier bridge BD1 and capacitor EC2, and the other end of inductor L1 is connected to the other end of capacitor EC2.

[0011] As a preferred embodiment of the heater, the power conversion module includes: capacitors C1, C2, and CE4; resistors R1, R2, R4, R5, R6, and R7; diodes D1 and D3; chip U1; and transformer T1. The 5V output module includes: capacitor CE3, resistor R3, and diode D2. The other end of inductor L1 and capacitor EC2 are respectively connected to one end of resistor R1, one end of resistor R2, one end of capacitor C1, and the sixth pin of transformer T1. The other end of resistor R1 is respectively connected to one end of diode D3, one end of capacitor CE4, and the third pin of chip U1. The other end of capacitor CE4 is grounded. The other ends of resistor R2 and capacitor C1 are respectively connected to one end of diode D1. The other end of diode D1 is respectively connected to the seventh pin of chip U1, the eighth pin of chip U1, and the... The fifth pin of transformer T1 is connected to the ground. The other end of diode D3 is connected to one end of resistor R7. The other end of resistor R7 is connected to one end of resistor R4 and the fourth pin of transformer T1. The other end of resistor R4 is connected to one end of resistor R5, one end of capacitor C2, and the second pin of chip U1. The other end of resistor R5 is connected to ground and the other end of capacitor C2. The first pin of chip U1 is connected to one end of resistor R6. The other end of resistor R6 is connected to ground. The fifth and sixth pins of chip U1 are connected to ground. The third pin of transformer T1 is connected to ground. One end of diode D2 is connected to the first pin of transformer T1. The other end of diode D2 is connected to one end of capacitor CE3 and one end of resistor R3. The other end of capacitor CE3 and the other end of resistor R3 are connected to the second pin of transformer T1 and ground.

[0012] As a preferred embodiment of the heater, the main control module is chip U2. The water shortage detection module includes: relay J4, resistors R8, R24, and R29, capacitors C3, C4, C5, and C7, and terminal TZ. The first pin of relay J4 is connected to one end of resistor R29, one end of resistor R8, one end of capacitor C4, and the first pin of chip U2. The other end of resistor R8 is connected to one end of resistor R3 and one end of capacitor C3. The other end of capacitor C3 is connected to ground. The other end of resistor R29 is connected to the twelfth pin of chip U2 and the first pin of resistor R29. One end of capacitor C4 is connected to one end of capacitor C7, and the other end of capacitor C7 is connected to ground. The other end of resistor R24 ​​is connected to the first pin of terminal TZ, and the second pin of terminal TZ is connected to ground. The other end of capacitor C4 and one end of capacitor C5 are connected to the third pin of chip U2 and ground, and the other end of capacitor C5 is connected to the second pin of chip U2. The second pin of relay J4 is connected to ground, the third pin of relay J4 is connected to the seventh pin of chip U2, and the fourth pin of relay J4 is connected to the eighth pin of chip U2. The two water separation detection probes are electrically connected to terminal TZ. The on / off control module includes: a transistor Q1, a resistor R9, and a diode D4. The first pin of transistor Q1 is connected to one end of resistor R9, and the other end of resistor R9 is connected to the twenty-sixth pin of chip U2. The second pin of transistor Q1 is connected to ground, and the third pin of transistor Q1 is connected to one end of diode D4. The other end of diode D4 is connected to one end of resistor R3. The heating control module includes: a relay J3 and a terminal HERT2. The first pin of relay J3 is connected to one end of resistor R3, and the second pin of relay J3 is connected to one end of diode D4 and the terminal HERT2. The third pin is connected to the neutral wire, the fourth pin of the relay J3 is connected to the terminal HERT2, and the heating rod is connected to the terminal HERT2; the temperature detection module includes: resistor R25, capacitor C6 and terminal NTC1, one end of resistor R25 is connected to one end of resistor R3, the other end of resistor R25 is connected to the eleventh pin of chip U2, one end of capacitor C6 and the first pin of terminal NTC1 respectively, the other end of capacitor C6 is connected to ground, the second pin of terminal NTC1 is connected to ground, and a temperature detection probe is connected to terminal NTC1.

[0013] As a preferred embodiment of the heater, the temperature display module includes: an LED1 digital tube, resistors R10, R11, R14, R15, R16, R17, R18, and R19. The drive controller further includes a display screen embedded in the controller housing at the location of the LED1 digital tube. The first pin of the LED1 digital tube is connected to one end of R16, and the other end of R16 is connected to the sixteenth pin of chip U2. The second pin of the LED1 digital tube is connected to one end of R15, and the other end of R15 is connected to the twenty-second pin of chip U2. The third pin of the LED1 digital tube is connected to... One end of R19 is connected to the chip, and the other end of R19 is connected to the twenty-third pin of chip U2. The fourth pin of LED1 digital tube is connected to one end of R14, and the other end of R14 is connected to the twenty-fourth pin of chip U2. The fifth pin of LED1 digital tube is connected to one end of R18, and the other end of R18 is connected to the twenty-fifth pin of chip U2. The sixth pin of LED1 digital tube is a normally closed contact. The seventh pin of LED1 digital tube is connected to one end of R11, and the other end of R11 is connected to the twentyth pin of chip U2. The eighth pin of LED1 digital tube is connected to the nineteenth pin of chip U2. The ninth pin of LED1 is connected to the eighteenth pin of chip U2. The tenth pin of LED1 is connected to one end of R17, and the other end of R17 is connected to the seventeenth pin of chip U2. The eleventh pin of LED1 is connected to one end of R10, and the other end of R10 is connected to the sixteenth pin of chip U2. The twelfth pin of LED1 is connected to the fifteenth pin of chip U2. The indicator module includes: red LED2, green LED2, resistors R12 and R13, red LED3, green LED3, resistors R27 and R28. One end of red LED2 and one end of green LED2 are connected to resistor R3. One end of the red LED2 is connected to one end of the resistor R12, and the other end of the resistor R12 is connected to the fifth pin of the chip U2. The other end of the green LED2 is connected to one end of the resistor R13, and the other end of the resistor R13 is connected to the fourth pin of the chip U2. One end of the red LED3 and one end of the green LED3 are connected to one end of the resistor R3, and the other end of the red LED3 is connected to one end of the resistor R27, and the other end of the resistor R27 is connected to the thirteenth pin of the chip U2. The other end of the green LED3 is connected to one end of the resistor R28, and the other end of the resistor R28 is connected to the fourteenth pin of the chip U2.

[0014] The buzzer module includes: transistor Q2, resistor R20, resistor R26, and terminal Speak1. The drive controller further includes: a buzzer body. One end of resistor R20 is connected to the twenty-seventh pin of chip U2, the other end of resistor R20 is connected to the first pin of transistor Q2, the second pin of transistor Q2 is connected to ground, the third pin of transistor Q2 is connected to the first pin of terminal Speak1, the second pin of terminal Speak1 is connected to one end of resistor R26, the other end of resistor R26 is connected to one end of resistor R3, and the buzzer body is electrically connected to terminal Speak1.

[0015] As a preferred embodiment of the heater, the touch function module includes: button K1, button K2, button K3, resistor R21, resistor R22, and resistor R23. The drive controller further includes: a touch spring. The controller housing has touch areas at positions corresponding to buttons K1, K2, and K3. The touch spring is sandwiched between buttons K1, K2, K3, and their corresponding touch areas. One end of button K1 is connected to resistor R23, and the other end of resistor R23 is connected to the 28th pin of chip U2. One end of button K2 is connected to resistor R22, and the other end of resistor R22 is connected to the 10th pin of chip U2. One end of button K3 is connected to resistor R21, and the other end of resistor R21 is connected to the 9th pin of chip U2.

[0016] As a preferred embodiment of the heater, the heater body further includes: a mounting base and a heater housing; the heating rod is mounted on one side of the mounting base, and the heater housing is mounted on one side of the mounting base and covers the heating rod; two water separation detection probes are mounted on one side of the mounting base inside the heater housing, and one temperature detection probe is mounted on one side of the mounting base outside the heater housing; the heater housing has multiple perforated holes.

[0017] As a preferred embodiment of the heater, the mounting base includes: a mounting base housing and a mounting base rear cover; a receiving groove is provided on the other side of the mounting base housing, and the heating rod, the two water separation detection probes, and the one temperature detection probe pass through one side of the mounting base rear cover and extend into the receiving groove for fixation; the mounting base rear cover is fixed to the opening of the receiving groove, and the power line from the drive controller passes through the mounting base rear cover and is electrically connected to the heating rod, the two water separation detection probes, and the one temperature detection probe, respectively.

[0018] As a preferred embodiment of the heater, the heater housing includes: a housing body and a housing plug. One side of the mounting base housing extends toward the housing body to form a first fixing protrusion. After the housing body is fitted onto the first fixing protrusion, a fixing screw passes through the housing body and extends into the first fixing protrusion for fixation. One side of the housing plug extends toward the housing body to form a second fixing protrusion. After the housing body is fitted onto the second fixing protrusion, a fixing screw passes through the housing body and extends into the second fixing protrusion for fixation.

[0019] The beneficial effects of this utility model are:

[0020] This utility model provides a heater, comprising: a heater body and a drive controller disposed on an external power supply line of the heater body. The heater body includes: a heating rod and a temperature detection probe. The drive controller includes: a controller housing and a control circuit board disposed within the controller housing. The drive controller is disposed within the heater, and the control circuit board includes: an input protection module, a rectifier and filter module connected to the input protection module, a power conversion module connected to the rectifier and filter module, a 5V output module connected to the power conversion module, a main control module connected to the 5V output module, a touch function module, an on / off control module, a temperature detection module, a temperature display module, an indicator light module, and a buzzer module, all connected to the main control module. The heating control module is connected to the on / off control module, which is also connected to the water shortage detection module and the temperature detection module. A heating rod is connected to the heating control module, and a temperature detection probe is connected to the temperature detection module. Using the above-mentioned solution, firstly, by setting an input protection module in the control circuit board, the heater can be powered off promptly in case of input overload, thus protecting the user's safety. Secondly, by setting a touch function module, a temperature display module, an indicator light module, and a buzzer module in the control circuit board, the heater temperature can be precisely controlled, and the user can be promptly alerted that heating is complete, thereby improving the user experience based on precise control. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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, and all of them fall within the protection scope of this utility model.

[0022] Figure 1 This is a three-dimensional structural diagram of the heater of this utility model;

[0023] Figure 2 yes Figure 1 The diagram shows an explosion of the heater.

[0024] Figure 3 yes Figure 2 The diagram shows the structure of the control circuit board for the heater.

[0025] Figure 4 yes Figure 2 A schematic diagram of the controller housing of the heater shown;

[0026] Figure 5 yes Figure 2 A schematic diagram of the structure of the heater mounting base housing is shown;

[0027] Figure 6 yes Figure 2 The diagram shows the structure of the heater's outer casing plug;

[0028] Figure 7 yes Figure 2 The schematic diagram of the control circuit board for the heater is shown.

[0029] Figure 8 yes Figure 2 The circuit diagram of the heater's control circuit board is shown.

[0030] Figure 9 yes Figure 8 The circuit diagram shown is for the heater's input protection module, rectifier filter module, power conversion module, and 5V output module.

[0031] Figure 10 yes Figure 8 The circuit diagram shown is for the touch function module, water shortage detection module, indicator light module, main control module and temperature display module of the heater.

[0032] Figure 11 yes Figure 8 The circuit diagram shown is for the heater's on / off control module and the heating control module.

[0033] Figure 12 yes Figure 8 The circuit diagram of the buzzer module of the heater shown;

[0034] Figure 13 yes Figure 8 The circuit diagram shown is for the temperature detection module of the heater. Detailed Implementation

[0035] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. 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.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. It should be noted that, without conflict, the various features in the embodiments of the present invention can be combined with each other, and the combined embodiments are still within the protection scope of the present invention.

[0037] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a rotatable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] In existing technologies, heaters are generally used to heat water sources, typically for fish tanks, portable swimming pools, and bathtubs. Traditional heaters prevent dry burning by using temperature detectors. That is, if the temperature detector detects that the water temperature has not reached the preset value, it will continue to heat until the temperature detector detects that the water temperature has reached the preset value, at which point it will stop heating. However, the control circuit board of traditional heaters can only perform the logical judgment function of the temperature detector to control the heating rod to turn on and off. Its function is relatively simple and cannot meet people's needs for precise control of the heater, nor can it meet people's growing needs. Therefore, designing a heater that can be precisely controlled and is sufficiently safe has become an urgent problem to be solved by those skilled in the art.

[0039] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 ,and Figure 13As shown, this utility model embodiment provides a heater, which includes: a heater body 10 and a drive controller 20 disposed on the external power supply line of the heater body 10. The heater body 10 includes: a heating rod 11, two water separation detection probes 12 and a temperature detection probe 13. The drive controller 20 includes: a controller housing 21 and a control circuit board 22 disposed in the controller housing 21.

[0040] The control circuit board 22 includes: an input protection module 2201, a rectifier and filter module 2202 connected to the input protection module 2201, a power conversion module 2203 connected to the rectifier and filter module 2202, a 5V output module 2204 connected to the power conversion module 2203, a main control module 2205 connected to the 5V output module 2204, a touch function module 2206, a water shortage detection module 2207, an on / off control module 2208, a temperature detection module 2209, a temperature display module 2210, an indicator light module 2211, and a buzzer module 2212, all connected to the main control module 2205, and a control heating module 2213 connected to the on / off control module 2208. The on / off control module 2208 is also connected to the water shortage detection module 2207 and the temperature detection module 2209.

[0041] The heating rod 11 is connected to the heating control module 2213, the two water separation detection probes 12 are connected to the water shortage detection module 2207, and the temperature detection probe 13 is connected to the temperature detection module 2209.

[0042] In this utility model, the above solution is adopted. First, by setting the input protection module 2201 in the control circuit board 22, the heater can be powered off in time when the input is overloaded, thereby protecting the user's safety. By setting the touch function module 2206, the temperature display module 2210, the indicator light module 2211, and the buzzer module 2212 in the control circuit board 22, the temperature of the heater can be accurately controlled, and the user can be promptly alerted that heating is complete. Thus, the user experience is improved on the basis of precise control.

[0043] Secondly, two water separation detection probes 12 are installed in the heater. The drive controller 20 collects and processes data from one temperature detection probe 13 and the two water separation detection probes 12. When both water separation detection probes 12 are in a conductive state, it indicates that the heater is in the aqueous solution, and the heater works normally. Heating stops when the temperature detected by the temperature detection probe 13 reaches the preset temperature. When both water separation detection probes 12 are in a disconnected state, it indicates that the heater is out of the aqueous solution or partially in the aqueous solution. In this case, the heater is not turned on, thus preventing the heater from dry burning. This allows for accurate determination of whether the heater is in water and whether the heater can heat the water source, thereby overcoming the problem of traditional heaters being prone to dry burning.

[0044] Specifically, the input protection module 2201 is a fuse, and the rectification and filtering module 2202 includes a rectifier bridge DB1;

[0045] One end of the input protection module 2201 is connected to the live wire, the other end of the input protection module 2201 is connected to the first pin of the rectifier bridge BD1, and the third pin of the rectifier bridge BD1 is connected to the neutral wire.

[0046] Specifically, the rectifier and filter module 2202 further includes: capacitor EC1, capacitor EC2, and inductor L1;

[0047] One end of capacitor EC1 is connected to one end of inductor L1, which is the second pin of rectifier bridge BD1. The other end of capacitor EC1 is connected to the fourth pin of rectifier bridge BD1 and capacitor EC2. The other end of inductor L1 is connected to the other end of capacitor EC2.

[0048] Specifically, the power conversion module 2203 includes: capacitor C1, capacitor C2, capacitor CE4, resistor R1, resistor R2, resistor R4, resistor R5, resistor R6, resistor R7, diode D1, diode D3, chip U1, and transformer T1; the 5V output module 2204 includes: capacitor CE3, resistor R3, and diode D2.

[0049] The other end of inductor L1 and capacitor EC2 are respectively connected to one end of resistor R1, one end of resistor R2, one end of capacitor C1, and the sixth pin of transformer T1. The other end of resistor R1 is respectively connected to one end of diode D3, one end of capacitor CE4, and the third pin of chip U1. The other end of capacitor CE4 is grounded. The other ends of resistor R2 and capacitor C1 are respectively connected to one end of diode D1. The other end of diode D1 is respectively connected to the seventh pin of chip U1, the eighth pin of chip U1, and the fifth pin of transformer T1. The diode D3 is connected to one end of the resistor R7. The other end of the resistor R7 is connected to one end of the resistor R4 and the fourth pin of the transformer T1. The other end of the resistor R4 is connected to one end of the resistor R5, one end of the capacitor C2, and the second pin of the chip U1. The other end of the resistor R5 is connected to ground and the other end of the capacitor C2. The first pin of the chip U1 is connected to one end of the resistor R6. The other end of the resistor R6 is connected to ground. The fifth and sixth pins of the chip U1 are connected to ground. The third pin of the transformer T1 is connected to ground.

[0050] One end of the diode D2 is connected to the first pin of the transformer T1, and the other end of the diode D2 is connected to one end of the capacitor CE3 and one end of the resistor R3. The other ends of the capacitor CE3 and the other ends of the resistor R3 are connected to the second pin of the transformer T1 and ground.

[0051] Specifically, the main control module 2205 is chip U2, and the water shortage detection module 2207 includes: relay J4, resistors R8, R24, and R29, capacitors C3, C4, C5, and C7, and terminal TZ. The first pin of relay J4 is connected to one end of resistor R29, one end of resistor R8, one end of capacitor C4, and the first pin of chip U2. The other end of resistor R8 is connected to one end of resistor R3 and one end of capacitor C3. The other end of capacitor C3 is connected to ground. The other end of resistor R29 is connected to the twelfth pin of chip U2 and the first pin of resistor R24. One end of the resistor R24 ​​is connected to one end of the capacitor C7, and the other end of the capacitor C7 is connected to ground. The other end of the resistor R24 ​​is connected to the first pin of the terminal TZ, and the second pin of the terminal TZ is connected to ground. The other end of the capacitor C4 and one end of the capacitor C5 are connected to the third pin of the chip U2 and ground. The other end of the capacitor C5 is connected to the second pin of the chip U2. The second pin of the relay J4 is connected to ground. The third pin of the relay J4 is connected to the seventh pin of the chip U2. The fourth pin of the relay J4 is connected to the eighth pin of the chip U2. The two water separation detection probes 12 are electrically connected to the terminal TZ.

[0052] The on / off control module 2208 includes: transistor Q1, resistor R9, and diode D4. The first pin of transistor Q1 is connected to one end of resistor R9, the other end of resistor R9 is connected to the twenty-sixth pin of chip U2, the second pin of transistor Q1 is connected to ground, the third pin of transistor Q1 is connected to one end of diode D4, and the other end of diode D4 is connected to one end of resistor R3.

[0053] The control heating module 2213 includes a relay J3 and a terminal HERT2. The first pin of the relay J3 is connected to one end of the resistor R3, the second pin of the relay J3 is connected to one end of the diode D4 and the third pin of the transistor Q1, the third pin of the relay J3 is connected to the neutral wire, and the fourth pin of the relay J3 is connected to the terminal HERT2. The heating rod 11 is connected to the terminal HERT2.

[0054] The temperature detection module 2209 includes: a resistor R25, a capacitor C6, and a terminal NTC1. One end of the resistor R25 is connected to one end of the resistor R3. The other end of the resistor R25 is connected to the eleventh pin of the chip U2, one end of the capacitor C6, and the first pin of the terminal NTC1. The other end of the capacitor C6 is connected to ground. The second pin of the terminal NTC1 is connected to ground. A temperature detection probe 13 is connected to the terminal NTC1.

[0055] Specifically, the temperature display module 2210 includes: an LED1 digital tube, resistors R10, R11, R14, R15, R16, R17, R18, and R19. The drive controller 20 further includes: a display screen, which is embedded in the controller housing 21 at the position of the LED1 digital tube. The first pin of the LED1 digital tube is connected to one end of R16, and the other end of R16 is connected to the sixteenth pin of the chip U2. The second pin of the LED1 digital tube is connected to one end of R15, and the other end of R15 is connected to the twenty-second pin of the chip U2. The third pin of the LED1 digital tube is connected to one end of R19, and the other end of R19 is connected to the twenty-third pin of the chip U2. The fourth pin of the LED1 digital tube is connected to one end of R14, and the other end of R14 is connected to the... The LED1 digital tube has 24 pins connected. The fifth pin of the LED1 digital tube is connected to one end of R18, and the other end of R18 is connected to the twenty-fifth pin of the chip U2. The sixth pin of the LED1 digital tube is a normally closed contact. The seventh pin of the LED1 digital tube is connected to one end of R11, and the other end of R11 is connected to the twentieth pin of the chip U2. The eighth pin of the LED1 digital tube is connected to the nineteenth pin of the chip U2. The ninth pin of the LED1 digital tube is connected to the eighteenth pin of the chip U2. The tenth pin of the LED1 digital tube is connected to one end of R17, and the other end of R17 is connected to the seventeenth pin of the chip U2. The eleventh pin of the LED1 digital tube is connected to one end of R10, and the other end of R10 is connected to the sixteenth pin of the chip U2. The twelfth pin of the LED1 digital tube is connected to the fifteenth pin of the chip U2.

[0056] The indicator module 2211 includes: red LED2, green LED2, resistor R12, resistor R13, red LED3, green LED3, resistor R27, and resistor R28. One end of red LED2 and one end of green LED2 are connected to one end of resistor R3. The other end of red LED2 is connected to one end of resistor R12. The other end of resistor R12 is connected to the fifth pin of chip U2. The other end of green LED2 is connected to one end of resistor R13. The other end of resistor R13 is connected to the fourth pin of chip U2. One end of red LED3 and one end of green LED3 are connected to one end of resistor R3. The other end of red LED3 is connected to one end of resistor R27. The other end of resistor R27 is connected to the thirteenth pin of chip U2. The other end of green LED3 is connected to one end of resistor R28. The other end of resistor R28 is connected to the fourteenth pin of chip U2.

[0057] The buzzer module 2212 includes a transistor Q2, resistors R20 and R26, and a terminal Speak1. The drive controller 20 further includes a buzzer body 24. One end of resistor R20 is connected to the twenty-seventh pin of chip U2, the other end of resistor R20 is connected to the first pin of transistor Q2, the second pin of transistor Q2 is connected to ground, the third pin of transistor Q2 is connected to the first pin of terminal Speak1, the second pin of terminal Speak1 is connected to one end of resistor R26, the other end of resistor R26 is connected to one end of resistor R3, and the buzzer body 24 is electrically connected to terminal Speak1. The buzzer body 24 is used to play a prompt sound after dry burning to warn the user of dry burning.

[0058] Specifically, the touch function module 2206 includes: button K1, button K2, button K3, resistor R21, resistor R22, and resistor R23. The drive controller 20 also includes: a touch spring 23. The controller housing 21 has a touch area 211 at the position corresponding to button K1, button K2, and button K3. The touch spring 23 is sandwiched between button K1, button K2, button K3, and their corresponding touch area 211. The touch function module 2206 can control the heater's on / off state and adjust the temperature.

[0059] One end of button K1 is connected to resistor R23, and the other end of resistor R23 is connected to the twenty-eighth pin of chip U2. One end of button K2 is connected to resistor R22, and the other end of resistor R22 is connected to the tenth pin of chip U2. One end of button K3 is connected to resistor R21, and the other end of resistor R21 is connected to the ninth pin of chip U2.

[0060] Specifically, the heater body 10 further includes: a mounting base 14 and a heater housing 15; the heating rod 11 is mounted on one side of the mounting base 14, and the heater housing 15 is mounted on one side of the mounting base 14 and then covers the heating rod 11.

[0061] Two water separation detection probes 12 are installed on one side of the mounting base 14 inside the heater housing 15, and one temperature detection probe 13 is installed on one side of the mounting base 14 outside the heater housing 15; the heater housing 15 is provided with a plurality of perforated holes 151.

[0062] Specifically, the mounting base 14 includes: a mounting base housing 141 and a mounting base rear cover 142;

[0063] The other side of the mounting base housing 141 is provided with a receiving groove 1411. The heating rod 11, the two water separation detection probes 12, and the temperature detection probe 13 pass through one side of the mounting base rear cover 142 and extend into the receiving groove 1411 for fixation. The mounting base rear cover 142 is fixed at the opening of the receiving groove 1411. The power line from the drive controller 20 passes through the mounting base rear cover 142 and is electrically connected to the heating rod 11, the two water separation detection probes 12, and the temperature detection probe 13 respectively.

[0064] Specifically, the heater housing 15 includes: a housing body 152 and a housing plug 153;

[0065] One side of the mounting base housing 141 extends toward the housing body 152 to form a first fixing protrusion 1412. After the housing body 152 is fitted onto the first fixing protrusion 1412, a fixing screw passes through the housing body 152 and extends into the first fixing protrusion 1412 for fixation. One side of the housing plug 153 extends toward the housing body 152 to form a second fixing protrusion 1531. After the housing body 152 is fitted onto the second fixing protrusion 1531, a fixing screw passes through the housing body 152 and extends into the second fixing protrusion 1531 for fixation.

[0066] The working principle of the heater is as follows:

[0067] The input protection module 2201 provides input overcurrent protection, the temperature detection module 2209 controls the set temperature, and the water shortage detection module 2207 prevents the heating rod 11 from burning dry. After the AC voltage is rectified by the rectifier bridge DB1 of the rectifier and filter module 2202, it is filtered by capacitors EC1 and EC2 to obtain a relatively pure DC voltage. The power conversion circuit consists of a chip U1 and a transformer T1 forming a dual-transistor forward topology. When the chip U1 starts working, it emits a PWM drive wave to drive the built-in MOS transistor of the chip U1 to switch. The bus DC voltage is transformed into a square wave voltage during the switching process of the built-in MOS transistor of the chip U1. The primary coil of the transformer T1 generates an excitation inductance under the action of the square wave, which transfers energy to the secondary side inductor. The secondary side generates a corresponding alternating voltage square wave. This square wave is rectified and filtered into a low-voltage DC voltage by diode D2 and capacitor EC3. The output 5V is rectified and filtered by diode D2 and output to chip U2. The operation of buttons K1, K2, and K3 controls the power supply to the heating rod 11. Touching buttons K1, K2, and K3 outputs high and low level changes, which are transmitted to the main control chip U2. The buzzer module 2212 is controlled by the PWM output of chip U2 to control transistor Q2. The indicator module 2211 is controlled by chip U2 to turn LED2 and LED3 on and off. The temperature display module 2210 displays the real-time temperature and the set temperature using LED1 digital tube. The detection module outputs signals from the NTC and TZ terminals to the main control chip U2. The on / off control module 2208 is controlled by transistor Q1 to turn relay J3 on and off. The heating control module controls whether the heating rod 11 is powered on or off via relay J3.

[0068] The present invention has been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and alterations to these embodiments can be made without departing from the principles and spirit of the present invention, and these changes still fall within the protection scope of the present invention.

Claims

1. A heater characterized by, The application relates to a heater body and a driving controller arranged on an external power line of the heater body, wherein the heater body comprises a heating rod and a temperature detection probe, and the driving controller comprises a controller shell and a control circuit board arranged in the controller shell. The control circuit board comprises an input protection module, a rectification filter module connected with the input protection module, a power conversion module connected with the rectification filter module, a 5V output module connected with the power conversion module, a main control module connected with the 5V output module, a touch function module, an on-off control module, a temperature detection module, a temperature display module, an indicator light module and a buzzer module connected with the main control module, and a control heating module connected with the on-off control module, and the on-off control module is further connected with the temperature detection module. The heating rod is connected with the control heating module, and one temperature detection probe is connected with the temperature detection module. The heater body further comprises two water detection probes, and the control circuit board further comprises a water shortage detection module.

2. The heater of claim 1, wherein The on-off control module is further connected with the water shortage detection module, and the two water detection probes are connected with the water shortage detection module. The input protection module is a fuse, and the rectification filter module comprises a rectification bridge DB1.

3. The heater of claim 2, wherein One end of the input protection module is connected with a live wire, and the other end of the input protection module is connected with a first pin of the rectification bridge BD1, and a third pin of the rectification bridge BD1 is connected with a zero line. The rectification filter module further comprises a capacitor EC1, a capacitor EC2 and an inductor L1.

4. The heater of claim 3, wherein One end of the capacitor EC1 is connected with a second pin of the rectification bridge BD1 and one end of the inductor L1 respectively, and the other end of the capacitor EC1 is connected with a fourth pin of the rectification bridge BD1 and the capacitor EC2 respectively, and the other end of the inductor L1 is connected with the other end of the capacitor EC2. The power conversion module comprises a capacitor C1, a capacitor C2, a capacitor CE4, a resistor R1, a resistor R2, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a diode D1, a diode D3, a chip U1 and a transformer T1, and the 5V output module comprises a capacitor CE3, a resistor R3 and a diode D2.

5. The heater of claim 4, wherein ​ An end of the inductor L1 and an end of the capacitor EC2 are connected with an end of the resistor R1, an end of the resistor R2, an end of the capacitor C1 and a sixth pin of the transformer T1 respectively, an end of the resistor R1 is connected with an end of the diode D3, an end of the capacitor CE4 and a third pin of the chip U1 respectively, an end of the capacitor CE4 is grounded, an end of the resistor R2 and an end of the capacitor C1 are connected with an end of the diode D1 respectively, an end of the diode D1 is connected with a seventh pin of the chip U1, an eighth pin of the chip U1 and a fifth pin of the transformer T1 respectively, an end of the diode D3 is connected with an end of the resistor R7, an end of the resistor R7 is connected with an end of the resistor R4 and a fourth pin of the transformer T1, an end of the resistor R4 is connected with an end of the resistor R5, an end of the capacitor C2 and a second pin of the chip U1, an end of the resistor R5 is connected with ground and an end of the capacitor C2, an end of the resistor R6 is connected with a first pin of the chip U1, an end of the resistor R6 is connected with ground, a fifth pin and a sixth pin of the chip U1 are connected with ground, a third pin of the transformer T1 is connected with ground; An end of the diode D2 is connected with a first pin of the transformer T1, an end of the diode D2 is connected with an end of the capacitor CE3 and an end of the resistor R3 respectively, an end of the capacitor CE3 and an end of the resistor R3 are connected with a second pin of the transformer T1 and ground respectively.

6. The heater of claim 5, wherein The main control module is a chip U2, the water shortage detection module comprises a relay J4, a resistor R8, a resistor R24, a resistor R29, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C7 and a terminal TZ, a first pin of the relay J4 is connected with an end of the resistor R29, an end of the resistor R8, an end of the capacitor C4 and a first pin of the chip U2 respectively, an end of the resistor R8 is connected with an end of the resistor R3 and an end of the capacitor C3 respectively, an end of the capacitor C3 is grounded, an end of the resistor R29 is connected with a twelfth pin of the chip U2, an end of the resistor R24 and an end of the capacitor C7 respectively, an end of the capacitor C7 is grounded, an end of the resistor R24 is connected with a first pin of the terminal TZ, a second pin of the terminal TZ is grounded, an end of the capacitor C4 and an end of the capacitor C5 are connected with a third pin of the chip U2 and ground, an end of the capacitor C5 is connected with a second pin of the chip U2, a second pin of the relay J4 is grounded, a third pin of the relay J4 is connected with a seventh pin of the chip U2, a fourth pin of the relay J4 is connected with an eighth pin of the chip U2, two water shortage detection probes are electrically connected with the terminal TZ. The on-off control module comprises a triode Q1, a resistor R9 and a diode D4, a first pin of the triode Q1 is connected with one end of the resistor R9, the other end of the resistor R9 is connected with the twenty-sixth pin of the chip U2, a second pin of the triode Q1 is connected with the ground, a third pin of the triode Q1 is connected with one end of the diode D4, the other end of the diode D4 is connected with one end of the resistor R3; The control heating module comprises a relay J3 and a terminal HERT2, a first pin of the relay J3 is connected with one end of the resistor R3, a second pin of the relay J3 is connected with one end of the diode D4 and the third pin of the triode Q1, a third pin of the relay J3 is connected with the zero line, a fourth pin of the relay J3 is connected with the terminal HERT2, and the heating rod is connected with the terminal HERT2; The temperature detection module comprises a resistor R25, a capacitor C6 and a terminal NTC1, one end of the resistor R25 is connected with one end of the resistor R3, the other end of the resistor R25 is connected with the eleventh pin of the chip U2, one end of the capacitor C6 and the first pin of the terminal NTC1 respectively, the other end of the capacitor C6 is connected with the ground, the second pin of the terminal NTC1 is connected with the ground, and one temperature detection probe is connected with the terminal NTC1.

7. The heater of claim 6, wherein The temperature display module comprises: LED1 nixie tube, resistance R10, resistance R11, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, and resistance R19, and the drive controller further comprises: a display screen embedded in the controller shell at the position of the LED1 nixie tube, a first pin of the LED1 nixie tube is connected with one end of the R16, the other end of the R16 is connected with the sixteenth pin of the chip U2, a second pin of the LED1 nixie tube is connected with one end of the R15, the other end of the R15 is connected with the twenty-second pin of the chip U2, a third pin of the LED1 nixie tube is connected with one end of the R19, the other end of the R19 is connected with the twenty-third pin of the chip U2, a fourth pin of the LED1 nixie tube is connected with one end of the R14, the other end of the R14 is connected with the twenty-fourth pin of the chip U2, a fifth pin of the LED1 nixie tube is connected with one end of the R18, the other end of the R18 is connected with the twenty-fifth pin of the chip U2, a sixth pin of the LED1 nixie tube is a normally closed contact, a seventh pin of the LED1 nixie tube is connected with one end of the R11, the other end of the R11 is connected with the twentieth pin of the chip U2, an eighth pin of the LED1 nixie tube is connected with the nineteenth pin of the chip U2, a ninth pin of the LED1 nixie tube is connected with the eighteenth pin of the chip U2, a tenth pin of the LED1 nixie tube is connected with one end of the R17, the other end of the R17 is connected with the seventeenth pin of the chip U2, an eleventh pin of the LED1 nixie tube is connected with one end of the R10, the other end of the R10 is connected with the sixteenth pin of the chip U2, a twelfth pin of the LED1 nixie tube is connected with the fifteenth pin of the chip U2; The indicator light module comprises: red LED2, green LED2, resistance R12, resistance R13, red LED3, green LED3, resistance R27, and resistance R28, one end of the red LED2, one end of the green LED2, and one end of the resistance R3 are connected, the other end of the red LED2 is connected with one end of the resistance R12, the other end of the resistance R12 is connected with the fifth pin of the chip U2, the other end of the green LED2 is connected with one end of the resistance R13, the other end of the resistance R13 is connected with the fourth pin of the chip U2, one end of the red LED3, one end of the green LED3, and one end of the resistance R3 are connected, the other end of the red LED3 is connected with one end of the resistance R27, the other end of the resistance R27 is connected with the thirteenth pin of the chip U2, the other end of the green LED3 is connected with one end of the resistance R28, the other end of the resistance R28 is connected with the fourteenth pin of the chip U2; The buzzer module comprises a triode Q2, a resistor R20, a resistor R26 and a terminal Speak1, the drive controller further comprises a buzzer body, one end of the resistor R20 is connected with the twenty-seventh pin of the chip U2, the other end of the resistor R20 is connected with the first pin of the triode Q2, the second pin of the triode Q2 is connected with the ground, the third pin of the triode Q2 is connected with the first pin of the terminal Speak1, the second pin of the terminal Speak1 is connected with one end of the resistor R26, the other end of the resistor R26 is connected with one end of the resistor R3, and the buzzer body is electrically connected with the terminal Speak1.

8. The heater of claim 6, wherein The touch function module comprises a key K1, a key K2, a key K3, a resistor R21, a resistor R22 and a resistor R23, and the drive controller further comprises a touch spring. The controller shell is provided with a touch area at positions corresponding to the key K1, the key K2 and the key K3, and the touch spring is clamped between the key K1, the key K2, the key K3 and the corresponding touch area. One end of the key K1 is connected with the resistor R23, the other end of the resistor R23 is connected with the twenty-eighth pin of the chip U2, one end of the key K2 is connected with the resistor R22, the other end of the resistor R22 is connected with the tenth pin of the chip U2, and one end of the key K3 is connected with the resistor R21, the other end of the resistor R21 is connected with the ninth pin of the chip U2.

9. The heater of claim 8, wherein, The heater body further comprises a mounting seat and a heater shell. The heating rod is mounted on one side of the mounting seat, and the heater shell is mounted on one side of the mounting seat. Two water-out detection probes are mounted on one side of the mounting seat and located inside the heater shell, and one temperature detection probe is mounted on one side of the mounting seat and located outside the heater shell. A plurality of hollow holes are arranged on the heater shell.

10. The heater of claim 9, wherein, The mounting seat comprises a mounting seat shell and a mounting seat rear cover. The other side of the mounting seat shell is provided with a containing groove, the heating rod, the two water-out detection probes and the one temperature detection probe pass through one side of the mounting seat rear cover and extend into the containing groove for fixation. The mounting seat rear cover is fixed at the opening of the containing groove, and the power lines connected with the drive controller pass through the mounting seat rear cover and are electrically connected with the heating rod, the two water-out detection probes and the one temperature detection probe respectively.

11. The heater of claim 9, wherein The heater shell comprises a shell body and a shell plug; One side of the mounting seat shell extends towards the shell body and forms a first fixing convex edge, the shell body is sleeved on the first fixing convex edge, and a fixing screw passes through the shell body and extends into the first fixing convex edge for fixation. One side of the shell plug extends towards the shell body to form a second fixed flange, the shell body is sleeved on the second fixed flange, and a national screw is inserted into the second fixed flange after penetrating through the shell body.

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