CN210268944U

CN210268944U - Constant-temperature and overtemperature dual-protection system for bathtub

Info

Publication number: CN210268944U
Application number: CN201921373309.XU
Authority: CN
Inventors: 王一新; 齐升强; 蒋才密
Original assignee: Shenzhen Lelechi Technology Co Ltd
Current assignee: Shenzhen Lelechi Technology Co Ltd
Priority date: 2019-08-22
Filing date: 2019-08-22
Publication date: 2020-04-07
Anticipated expiration: 2029-08-22

Abstract

The utility model discloses a bathtub constant temperature and overtemperature double protection system, which comprises a constant temperature protection system arranged on a constant temperature bathtub, wherein the constant temperature protection system is provided with a double power supply system, the double power supply system comprises a lithium battery or a mains supply, and the double power supply system is provided with an independent power management system; the utility model discloses can realize intelligent constant temperature, the temperature detects the warning and can play the music, and is safer in the use, and intelligent degree is high.

Description

Constant-temperature and overtemperature dual-protection system for bathtub

Technical Field

The utility model relates to a bathtub constancy of temperature and overtemperature duplicate protection system.

Background

The market almost adopts a 120-degree temperature fuse for on-off protection, and the control mode is not safe.

The A/temperature fuse has limited times, the principle of the temperature fuse switch is that the thermal expansion coefficients of two metals with different components in the temperature fuse switch are different to start the switch, and the metals have fatigue coefficients;

b/control precision is not accurate, and positive and negative deviation is larger than +/-3 degrees;

c/is not intelligent, the temperature is protected by overtemperature, but the user does not know, and the temperature can be used all the time, so that fire hazard is caused;

the D/temperature point is set too high, the protection point of 120 degrees, the actual internal temperature of the heater reaches more than 200 degrees, and 200 degrees of a plurality of substances are ignition points, so that a fire disaster is easily caused;

the adjustment of the E/temperature point is inconvenient, and the temperature switch can be replaced only after the temperature protection point needs to be changed and the materials are more;

f/when the bathtub water is not completely dry-proof and some residual water is in the water pipe, the heater can be effectively disconnected by dry heating protection, and the heater can also be effectively disconnected by the water temperature protection detector, so that a small part of hot water can be prevented from scalding children.

The A/temperature protection has no alarm and no indication, and a user does not know the situation and possibly causes the situation of continuous use;

b/no alarm when the water temperature is too high, which is particularly important for the care of children, the alarm can be given in time;

c/when the water in the bathtub is not completely drained and a little residual water exists, the heater can be disconnected only when the physical temperature switch reaches 120 degrees, the residual water is boiled as soon as possible, and boiled water can be shaken out when the bathtub is shaken to scald children.

Disclosure of Invention

The utility model aims to solve the technical problem that a bathtub constancy of temperature and super temperature duplicate protection system adopt duplicate protection system, can promote the security greatly, comfort level when can increase the product use simultaneously, more have recreational.

The utility model discloses a realize through following technical scheme: a bathtub constant temperature and overtemperature double protection system comprises a constant temperature protection system arranged on a constant temperature bathtub, wherein the constant temperature protection system is provided with a double power supply system, the double power supply system comprises a lithium battery or mains supply, and the double power supply system is provided with an independent power management system;

constant temperature protection system includes a main MCU, and main MCU controls the suction pump action of drawing water, and the main MCU control heater's break-make electricity and the temperature value that generates heat of control heater set up temperature detector in the position of the water inlet of suction pump, installs heater temperature detector on the heater, temperature detector and heater temperature detector's signal output part all transmits to main MCU, carries out AD data's collection through main MCU, and main MCU passes through the mode of serial ports with signal transmission to the display demonstration, and the temperature setting of heater is set for through the control key control more than one.

The power management system comprises an AC-DC switching power supply input, a charging management chip, a leakage detection protection circuit and a DC-DC boosting power supply circuit when AC is not plugged, the lithium battery is charged through the charging management chip, and when the lithium battery is used for supplying power, the boosting power supply is carried out through the boosting circuit.

As the preferred technical scheme, the intelligent monitoring system also comprises an alarm module, and the main MCU controls the alarm module to alarm after detecting the abnormal data.

As a preferred technical scheme, the alarm module adopts a loudspeaker or an alarm indicator lamp or the loudspeaker and the alarm indicator lamp alarm simultaneously.

As an optimized technical scheme, the main MCU is installed on the main control board, the main control board is also provided with a storage module, music files are stored in the storage module, and music is played through a loudspeaker.

Preferably, the water temperature detector and the heater temperature detector use two NTC resistors of 3950 for temperature detection.

According to the preferable technical scheme, the heater controls the switch through the relay, and the main MCU outputs high and low levels through the I/O port to drive the relay to work so as to cut off the heater.

The utility model has the advantages that: the utility model discloses have the temperature invariable, the overtemperature alarm, the protection of no water dry combustion method, remain the function of few water dry combustion method protection and music broadcast, the security performance promotes greatly, and has more recreational, more the wide application at the crowd of each age bracket.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a block diagram of the circuit of the present invention;

fig. 2 is a schematic circuit diagram of the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "the outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The use of terms herein such as "upper," "above," "lower," "below," and the like in describing relative spatial positions is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In the present invention, unless otherwise explicitly specified or limited, the terms "set", "coupled", "connected", "penetrating", "plugging", and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1-2, the constant temperature protection device comprises a constant temperature protection system installed on a constant temperature bathtub, wherein the constant temperature protection system is provided with a dual power supply system, the dual power supply system comprises a lithium battery or a mains supply, and the dual power supply system is provided with an independent power management system;

constant temperature protection system includes a main MCU, and main MCU control suction pump draws water the action, and the main MCU control heater's break-make electricity and the temperature value that generates heat of control heater set up temperature detector in the position of the water inlet of suction pump, installs heater temperature detector on the heater, temperature detector and heater temperature detector's signal output part all transmits to main MCU, carries out AD data's collection through main MCU, and main MCU passes through the mode of serial ports with signal transmission to the display demonstration, and the temperature setting of heater is set for through the control key control more than one.

The power management system comprises an AC-DC switching power supply input, a charging management chip, a leakage detection protection circuit and an AC non-plug-in DC-DC boost power supply circuit, wherein the lithium battery is charged through the charging management chip, and when the lithium battery is adopted for supplying power, the boost power supply circuit boosts the voltage for supplying power.

In the embodiment, the intelligent alarm device further comprises an alarm module, the main MCU controls the alarm module to alarm after detecting the abnormal data, and the alarm module adopts a loudspeaker or an alarm indicator lamp or the loudspeaker and the alarm indicator lamp to alarm simultaneously.

The main MCU is installed on the main control board, the storage module is further arranged on the main control board, music files are stored in the storage module, music is played through the loudspeaker, the music can be played when people take a bath, and the multifunctional bathing device is particularly suitable for children.

In this embodiment, the water temperature detector and the heater temperature detector use two NTC resistors of 3950 for temperature detection. The acquisition of AD data is carried out through MCU, then calculate the resistance value that the different temperature of NTC corresponds after looking up the temperature range of work through NTC's specification table, then turn into the resistance with the temperature, divide the voltage value of calculating with resistance data and NTC series resistance, then decompose the voltage value, then write in the middle of the procedure, after voltage signal was gathered to MCU's AD pin, obtain present gained temperature after the procedure operation, then MCU passes through the mode of serial ports with signal transfer to TM16 class digit tube drive, let the digit tube show corresponding temperature value.

The utility model can realize constant temperature control at 35-42 degrees; when the water temperature is detected to be more than 48 degrees, overtemperature alarm is carried out, the heater is switched off, and the water temperature can be displayed in real time; when the temperature of the heater is detected to be more than 88 degrees, carrying out overtemperature alarm and simultaneously cutting off the heater;

in addition, when the power is not plugged, the power is supplied by an internal battery, and the temperature is displayed in real time; when the power is supplied by the internal battery without electricity, when the water temperature is detected to be more than 48 degrees, the overtemperature alarm is started.

When water is discharged from the outside, if the water temperature is high (45-48 can be set), an alarm can be given effectively, and children can be prevented from being scalded;

when only a little residual water is left in the bathtub, the water temperature detector and the dry burning detector detect simultaneously, so that an alarm can be effectively given, the heater is disconnected, and the children are prevented from being scalded;

if no water is dried, the heater temperature detector can start protection at 88 degrees, cut off the power supply of the heater immediately and send out alarm sound and an alarm indicator light, the residual temperature of the heater can be effectively controlled within 120 degrees, and the hidden fire hazard is prevented within the burning point of all plastic/paper.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a bathtub constant temperature and overtemperature dual protection system which characterized in that: the constant-temperature protection system is arranged on the constant-temperature bathtub and is provided with a dual power supply system, the dual power supply system comprises a lithium battery or mains supply, and the dual power supply system is provided with an independent power management system;

2. A dual temperature constant and overtemperature protection system for a bathtub as defined in claim 1, wherein: the power management system comprises an AC-DC switching power supply input, a charging management chip, a leakage detection protection circuit and a DC-DC boosting power supply circuit when the AC is not plugged, the lithium battery is charged through the charging management chip, and when the lithium battery is adopted for supplying power, the boosting power supply is carried out through the boosting circuit.

3. A dual temperature constant and overtemperature protection system for a bathtub as defined in claim 1, wherein: the main MCU controls the alarm module to alarm after detecting the abnormal data.

4. A dual temperature constant and overtemperature protection system for a bathtub as defined in claim 3, wherein: the alarm module adopts a loudspeaker or an alarm indicator lamp or both the loudspeaker and the alarm indicator lamp to alarm.

5. The dual temperature constant and overtemperature protection system for a bathtub of claim 4, wherein: the main MCU is arranged on the main control board, a storage module is further arranged on the main control board, music files are stored in the storage module, and music is played through the loudspeaker.

6. A dual temperature constant and overtemperature protection system for a bathtub as defined in claim 1, wherein: the water temperature detector and the heater temperature detector perform temperature detection using two NTC resistors of 3950.

7. A dual temperature constant and overtemperature protection system for a bathtub as defined in claim 1, wherein: the heater controls the switch through the relay, and the main MCU drives the relay to work through the high-low level output by the I/O port, so that the heater is cut off.