WO2009082925A1 - Dispositif de chauffage d'eau - Google Patents

Dispositif de chauffage d'eau Download PDF

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Publication number
WO2009082925A1
WO2009082925A1 PCT/CN2008/073523 CN2008073523W WO2009082925A1 WO 2009082925 A1 WO2009082925 A1 WO 2009082925A1 CN 2008073523 W CN2008073523 W CN 2008073523W WO 2009082925 A1 WO2009082925 A1 WO 2009082925A1
Authority
WO
WIPO (PCT)
Prior art keywords
water heater
temperature sensor
temperature
inner tank
water
Prior art date
Application number
PCT/CN2008/073523
Other languages
English (en)
French (fr)
Inventor
Lili Han
Renhua Wang
Wei Zhang
Xiaolei Chen
Original Assignee
Haier Group Corporation
Wuhan Haier Water Heater Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Haier Group Corporation, Wuhan Haier Water Heater Co., Ltd. filed Critical Haier Group Corporation
Publication of WO2009082925A1 publication Critical patent/WO2009082925A1/zh

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/18—Water-storage heaters
    • F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
    • F24H1/208—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes with tubes filled with heat transfer fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/144—Measuring or calculating energy consumption
    • F24H15/148—Assessing the current energy consumption
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/223—Temperature of the water in the water storage tank
    • F24H15/225—Temperature of the water in the water storage tank at different heights of the tank
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/395—Information to users, e.g. alarms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/40—Control of fluid heaters characterised by the type of controllers
    • F24H15/414—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
    • F24H15/421—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
    • F24H9/2021—Storage heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/04—Sensors
    • F24D2220/042—Temperature sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/08—Storage tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2240/00—Characterizing positions, e.g. of sensors, inlets, outlets
    • F24D2240/12—Placed outside of
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2240/00—Characterizing positions, e.g. of sensors, inlets, outlets
    • F24D2240/26—Vertically distributed at fixed positions, e.g. multiple sensors distributed over the height of a tank, or a vertical inlet distribution pipe having a plurality of orifices

Definitions

  • the present invention relates to the field of water heaters, and more particularly to a water heater capable of displaying the amount of hot water.
  • the existing water heater is equipped with a temperature sensor at the axial center of the inner tank.
  • the temperature sensor transmits the measured water temperature to the water heater computer board control system connected to the temperature sensor.
  • the control system drives the display device to directly display the measured water temperature.
  • the temperature change measured by the above five temperature sensors shows the amount of hot water in the existing liner. Since the temperature sensors Tl, ⁇ 2, ⁇ 3, ⁇ 4, and ⁇ 5 of the existing water heater are distributed in the center position of the inner tank, there is a problem that installation is difficult in the actual installation process.
  • the inner layer of the water heater and the outer casing are filled with a heat insulating layer for maintaining the temperature, and the heat insulating layer is formed by foaming the foaming material.
  • the above temperature sensors T1, ⁇ 2, ⁇ 3, ⁇ 4, ⁇ 5 need to be placed in the axial direction of the central part outside the water heater liner before the foaming material is filled, and then the foaming material is filled into the water heater tank by foaming. Between the case and the case. However, since the foamed material is easily rushed to the position where it should be placed during the foaming process. This causes the temperature value measured by the temperature sensor to deviate from the temperature value that the temperature sensor is expected to measure. Thus, the change in temperature measured by the temperature sensor indicates that the amount of hot water in the bladder is also inaccurate.
  • An object of the present invention is to provide a water heater that facilitates maintenance and replacement of a temperature sensor and enables accurate measurement of the water temperature of the water heater.
  • the present invention provides a water heater for displaying a hot water amount, comprising a casing, a liner located in the casing, and an insulation layer between the liner and the casing;
  • the water heater further includes a controller, and a display coupled to the controller; a temperature sensor coupled to the controller is detachably mounted on an outer surface of the liner adjacent one end of the heating tube.
  • the inner cylinder is welded to the outer surface of one end of the heating tube to weld a cylinder having an external thread
  • the front end of the temperature sensor has a threaded hole or a through hole that is threadedly engaged with the outside of the column.
  • a threaded hole or nut is fitted to the cylinder to mount the temperature sensor.
  • the number of the temperature sensors is set according to the maximum capacity of the water heater.
  • the temperature sensors are at least two, and the two temperature sensors are located in the same cross section of the inner tank, and are located on upper and lower sides of the axial horizontal plane of the inner tank.
  • the temperature sensors are two or three, and all the temperature sensors are respectively located in the same cross section of the inner tank;
  • the two temperature sensors are respectively located on upper and lower sides of the horizontal plane of the inner liner;
  • the temperature sensor When the temperature sensor is three turns, one of the temperature sensors is located on the axial horizontal plane of the inner liner, and the other two temperature sensors are respectively located on the upper and lower sides of the axial horizontal plane of the inner liner.
  • the temperature sensor is four, specifically, a temperature sensor 1, a temperature sensor 2, a temperature sensor 3, and a temperature sensor 4; four of the temperature sensors are located in the The temperature sensor 3 is located at a bottommost point of the outer surface of the inner tank of the water heater, and the temperature sensor 4 is located at an inner horizontal plane of the inner tank.
  • the temperature sensor 1 and the temperature sensor 2 are symmetrically distributed on the two sides of the temperature sensor 4.
  • the vertical distance between the temperature sensor 1 and the temperature sensor 2 and the temperature sensor 4 is 1/3 to 7/8 of the radius of the inner casing.
  • the controller receives a preset water temperature, and the water temperature ranges specifically from 38 ° C to 50 ° C.
  • the water heater of the embodiment of the invention comprises an outer casing, a inner casing located inside the outer casing, and an insulation layer between the inner casing and the outer casing. Because the water heater of the embodiment of the invention leans on the inner liner A temperature sensor is detachably mounted on an outer surface of one end of the heating tube. Since the temperature sensor is detachably mounted and mounted on the outer surface near one end of the heating tube, it is convenient to repair and replace the temperature sensor.
  • the temperature sensor is installed with screws, so that the temperature sensor is not easily washed away by the foaming material of the insulation layer, which ensures the accuracy of the temperature measured by the temperature sensor.
  • At least a part of the water inlet pipe and the water outlet pipe of the water heater are made of an insulating material, and the shape of the inlet and outlet pipes is M-shaped, U-shaped, spiral, curved or insulated and stacked in a non-insulated pipe.
  • Casing, in the sleeve structure, the inner and outer tubes arranged in a nest are straight tubes, and the resistance of the water body between the water inlet and the water outlet of the inlet pipe and the outlet pipe passes through the structure to ensure the resistance value ⁇ 70 ⁇ ⁇ . This ensures that there will be no accidents due to leakage of the water heater.
  • the inner tank of the water heater is grounded by a circuit composed of a bubble and a resistor.
  • the outer casing and the outer hanger of the water heater are insulated from each other, and one end of the circuit composed of the bubble and the resistor is connected to the inner tank of the water heater, and the other end is directly connected to the wall for installing the water heater.
  • the outer casing of the water heater is insulated from the inner casing, and the conductive connection between the outer hanger and the outer casing, the wall bolt and the outer hanger is electrically conductive, and one end of the circuit composed of the bubble and the resistor is The water heater is connected to the inner casing, and the other end is electrically connected to the outer casing.
  • the water heater according to the present invention does not harm the user even if an unexpected electric leakage occurs.
  • Figure 1 is a structural view of a prior art water heater
  • Figure 2 is a cross-sectional view showing the structure of a first embodiment of the water heater according to the present invention
  • Figure 3 is a front elevational view of a first embodiment of the water heater of the present invention.
  • Figure 4 is a cross-sectional view showing a first embodiment of the water heater according to the present invention.
  • Figure 5 is a structural view of a first embodiment of the temperature sensor of the present invention.
  • Figure 6 is a cross-sectional view taken along line A- of Figure 5;
  • Figure 7 is a front elevational view of a second embodiment of the water heater of the present invention
  • 8 is a cross-sectional view of a second embodiment of the water heater of the present invention.
  • the present invention provides a water heater that facilitates maintenance of the temperature sensor and enables accurate measurement of the water temperature of the water heater.
  • Figure 2 is a cross-sectional view showing a first embodiment of the water heater according to the present invention
  • Figure 3 is a cross-sectional view showing a first embodiment of the water heater according to the present invention
  • the water heater for displaying the amount of hot water comprises an outer casing 1, a inner liner 2 located in the outer casing 1, and an insulating layer 5 between the inner casing 2 and the outer casing 1.
  • the water heater has a water inlet 3 and a water outlet 4.
  • the inlet pipe 13 and the outlet pipe 14 are connected to the upper ends of the water inlet 3 and the water outlet 4, respectively.
  • a heating pipe 6 for heating the water in the bladder 2 is disposed in the inner tank 2.
  • the inlet pipe 13 and/or the outlet pipe 14 of the water heater are made of an insulating material.
  • the lower portion of the inlet or outlet pipe i.e., the portion adjacent to the water heater liner 2 and connected to the liner 2
  • the upper portion of the inlet pipe 13 or the outlet pipe 14, that is, the portion away from the bottom of the water heater, is made of an insulating material.
  • the present invention it is also possible to employ a sleeve structure, that is, a part of the inlet pipe 13 or the outlet pipe 14 has a smaller diameter, and the other portion has a larger diameter, so that the large diameter portion can be fitted over the small diameter portion, and Both are fixed.
  • the outer pipe is usually made of an insulating material and the inner pipe is made of a conductive material.
  • a hole is provided at the upper end of the inner tube to allow water to flow out of the inner tube and then flow along the outer tube to the inner tank of the water heater.
  • the shape of the water inlet pipe 13 and the water outlet pipe 14 according to the present invention may be curved, spiral, square, M, U, or the like. That is, the inlet pipe 13 and the outlet pipe 14 are not straight pipes but tubes bent or reciprocally bent. However, both the inlet pipe 13 and the outlet pipe 14 of the shape or the inlet pipe 13 and the outlet pipe 14 of the casing structure need to be secured between the water inlet 3 and the water outlet 4 of the inlet pipe 13 and the outlet pipe 14. Water body The resistance value is ⁇ 70 ⁇ . In other words, the necessary length of the inlet pipe 13 and the outlet pipe 14 is to be secured.
  • the water heater of the embodiment of the present invention further includes a controller (not shown in Fig. 1), and a display (not shown in Fig. 1) connected to the controller.
  • the display is mounted on the outer surface of the outer casing 1 to facilitate viewing of the content displayed by the display by the user.
  • a temperature sensor connected to the controller is mounted on an outer surface of the inner casing 2 adjacent to the end of the heating tube.
  • the temperature sensor 8 and the temperature sensor 2 are located in the outer surface of the water heater liner 2 near the end of the heating tube 6 and are located in the same cross section.
  • the temperature sensor 2 and the temperature sensor 8 are respectively located on the upper and lower sides of the axial plane of the inner tank 2.
  • the temperature sensor 8 and the temperature sensor 2 can be located on the outer surface of the different cross section of the water heater liner 2, only need to meet the temperature sensor near the detachable port side of the water heater, that is, located in the water heater
  • the bladder 2 is adjacent to the outer surface of the end of the heating tube 6 .
  • the linear distance of the temperature sensor 27 from the axial plane of the bladder 2 is 1/2 of the radius of the bladder 2.
  • the linear distance of the temperature sensor 8 from the axial plane of the bladder 2 is 1/4 of the radius of the liner 2.
  • the temperature sensor 2 and the temperature sensor 8 transmit the measured temperature value to the controller, and the controller changes the temperature value in the unit turn with the pre-established temperature
  • the mapping between the change value and the amount of hot water is compared to determine the current amount of hot water, which is then displayed by the display.
  • the previously established mapping table between the temperature change value and the amount of hot water is determined based on the experimentally determined relationship between the temperature change of the sensor and the amount of hot water.
  • the temperature sensor 2 and the temperature sensor 8 send the measured temperature value to the controller, and the controller passes the temperature change value according to the change amount of the temperature value in the unit ⁇
  • the mapping table between the amount of hot water determines the heat in the current tank 2
  • the controller Since the temperature sensor sends the measured temperature value to the controller of the water heater, the controller changes the amount of change in the temperature value in the unit to the previously established temperature change value and the hot water amount.
  • the comparison between the mapping tables determines the current amount of hot water and then displays it through the display of the water heater.
  • the water heater of the embodiment of the invention can accurately display the amount of hot water of the predetermined temperature hot water in the current inner tank 2.
  • FIG. 5, FIG. 6, FIG. 5 is a structural diagram of a first embodiment of a temperature sensor according to the present invention
  • FIG. Figure 5 is a cross-sectional view of the A-A plane.
  • the water heater of the present invention welds a cylinder having an external thread on the outer surface of the inner casing 2 near the end of the heating pipe 6 , and the bottom of the cylinder may be unthreaded.
  • the front end of the temperature sensor has a through hole 12 that cooperates with an external thread of the cylinder.
  • the through hole 12 of the temperature sensor is first aligned with the cylinder, sleeved onto the cylinder, and the nut is matched with the cylinder by a nut that cooperates with the external thread of the column. Tighten tightly.
  • the temperature sensor can be firmly fixed to the outer surface of the inner liner and has good contact with the outer surface.
  • the temperature sensor rear end has a sensor lead 13 for connecting the controller.
  • the temperature sensor of the present invention is specifically mounted as follows: a cylinder having an external thread is welded to an outer surface of the inner tube 2 near the end of the heating tube 6 , and the front end of the temperature sensor has a body outside the column A threaded threaded bore 12 through which the temperature sensor is mated with the post. Preferably, after the cylinder is screwed with the temperature sensor, the cylinder is screwed by a nut that cooperates with the cylinder.
  • a through hole is formed in the front end of the temperature sensor, and the through hole is required to be larger than the size of the external thread of the column, and can be fitted on the column.
  • the post is then mounted in cooperation with a nut that mates with the external thread.
  • the water heater of the embodiment of the present invention is mounted with a temperature sensor on the outer surface of the inner tube 2 near the end of the heating tube. Since the temperature sensor is attached to the outer surface of the inner liner 2 by screwing, the installation strength of the temperature sensor can be ensured, and the operability of maintenance and disassembly can be satisfied. Since the temperature sensor is not easily washed away by the foaming material forming the insulating layer, the accuracy of the temperature measured by the temperature sensor can be ensured.
  • the installation method of the temperature sensor of the present invention may also be performed by welding or other installation methods, as long as the above installation position is satisfied and has a certain installation strength, and the specific installation manner will not be described in detail herein.
  • the water heater of the embodiment of the present invention is provided with a temperature sensor on the outer surface of the inner tube 2 near the end of the heating tube. Since the temperature sensor is installed on the outer surface of the inner tube 2 near the end of the heating tube 6 by screw or welding, it is not easy to be washed away by the foaming material of the heat insulating layer, thereby ensuring the accurate temperature measured by the temperature sensor. Sex.
  • the number of temperature sensors of the water heater according to the present invention needs to be based on the maximum capacity of the water heater. Set. When the maximum capacity of the water heater is large, 3 to 5 temperature sensors need to be installed to meet the requirements of the measured water temperature accuracy.
  • the temperature sensor can be two or three or four.
  • the temperature sensor 3 is located in the same cross section of the inner tank as the temperature sensor 8 and the temperature sensor 2, and the temperature sensor 3 is mounted on the outer surface of the water heater liner 2 near the end of the heating tube 6 and located The intermediate axial plane of the liner 2 is.
  • the temperature sensor 8 and the temperature sensor 2 and the temperature sensor 3 may be located on the outer surface of the water heater liner 2 on different sections, and only need to meet the temperature sensor near the detachable port side of the water heater, that is, The water heater liner 2 is adjacent to the outer surface of the heating tube 6 - end.
  • the temperature sensor is four, specifically a temperature sensor 1, a temperature sensor 2, a temperature sensor 3 and a temperature sensor 4; the four temperature sensors are located in the inner tank 2 close to the In the same cross section of the outer surface of the heating tube 6 , wherein the temperature sensor 3 is located at the lowest point of the outer surface of the inner tank of the water heater, and the temperature sensor 4 is located in the axial horizontal plane of the inner tank, The temperature sensor 1 and the temperature sensor 2 are symmetrically distributed on the upper and lower sides of the temperature sensor 4.
  • FIG. 7 is a front view of a second embodiment of the water heater according to the present invention.
  • FIG. 8 is a cross-sectional view of a second embodiment of the water heater according to the present invention.
  • the water heater of the present invention has four temperature sensors.
  • the four temperature sensors are located in the same cross section of the inner liner 2 near the outer surface of the heating tube 6 - end.
  • the four temperature sensors are specifically a temperature sensor three 12 located at the bottommost point of the outer surface of the inner tank of the water heater, a temperature sensor 40 located in the axial horizontal plane of the inner tank, and symmetrically distributed in the The temperature sensor one side of the temperature sensor four 10 and the temperature sensor two 11 .
  • the inner liner 2 has a circular cross section, the temperature sensor one 9 and the temperature sensor two 11 and the temperature
  • the vertical distance between the sensors 40 is preferably 1/2 of the radius of the liner 2.
  • the cross section of the inner tank 2 is circular, and the vertical distance between the temperature sensor 9 and the temperature sensor 21 and the temperature sensor 40 may be 1/the radius of the inner tank 2 3.
  • the cross section of the inner tank 2 is circular, and the vertical distance between the temperature sensor 9 and the temperature sensor 21 and the temperature sensor 40 may also be 7 of the radius of the inner tank 2. /8.
  • the specific positions of the temperature sensor 9 and the temperature sensor 22 can also be set as required.
  • the vertical distance between the temperature sensor 9 and the temperature sensor 21 and the temperature sensor 4 is set.
  • the four temperature sensors may be located in the same cross section of the liner 2 or in different sections.
  • the four temperature sensors are located in the same cross section of the inner liner 2, and may also be located in the longitudinal center plane of the inner liner 2, or in other cross sections.
  • the temperature sensor one 9, the temperature sensor four 10, the temperature sensor two 11 and the temperature sensor three 12 can actually send the measured temperature values to the controller respectively, the controller will be all within the unit
  • the change in the temperature value of the temperature sensor is compared with a mapping table between the temperature change value and the hot water amount established in advance, and the current amount of hot water is determined and displayed by the display.
  • the previously established mapping table between the temperature change value and the amount of hot water is determined based on the experimentally determined relationship between the temperature change of the four temperature sensors and the amount of hot water.
  • the water temperature corresponding to the amount of hot water is also preset, and may specifically be a temperature value of 38 to 50 °C. Specifically, it may be 38 ° C, 40 ° C, 42 ° C, 45 ° C or 50 ° C.
  • the preset water temperature corresponding to the amount of hot water may also be set to a water temperature of another hot water amount according to the needs of the specific user.
  • the four temperature sensors send the measured temperature value to the controller, and the controller passes between the temperature change value and the hot water amount according to the amount of change in the temperature value in the unit
  • the mapping table determines the amount of hot water in the current tank 2.
  • the water heater is secured to the wall by a pylon disposed outside of the water heater.
  • a bubble and a resistor are placed between the inner tank 2 of the water heater and the earth. This will form a leakage alarm circuit.
  • the bubble will emit light.
  • This ⁇ indicates: The water heater has a leakage fault and cannot be used.
  • One end of the bubble and resistor circuit is always connected to the inner tank 2, and the other There are at least two ways to connect at one end. In one connection, the inner tank 2, the outer casing 1 and the outer hanger of the water heater are insulated from each other, and the other end of the circuit composed of the bulb and the resistor is connected to the wall.
  • the inner tank 2 of the water heater and the outer casing 1 are insulated from each other, and the outer bracket and the outer casing are connected to each other with good electrical conductivity.
  • the other end of the circuit formed by the bubble and the resistor is connected to the outer casing.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Description

说明书 一种热水器
技术领域
[1] 本发明涉及热水器领域， 特别涉及一种能够显示热水量的热水器。
背景技术
[2] 现有热水器， 在内胆轴向中央位置安装温度传感器， 温度传感器将测量的水温 传送至与温度传感器相连的热水器电脑板控制系统， 由控制系统驱动显示装置 直接显示所测水温。
[3] 参见图 1， 现有一种热水器， 在内胆外的中央部位轴向分布 5个温度传感器 Tl、
Τ2、 Τ3、 Τ4、 Τ5。 通过上述 5个温度传感器测得的温度变化显示现有内胆中的热 水量。 由于现有热水器的温度传感器 Tl、 Τ2、 Τ3、 Τ4、 Τ5分布在内胆的中央位 置， 实际安装过程中存在安装困难的问题。 热水器的内胆和外壳之间填充起保 温作用的保温层， 保温层是通过发泡材料发泡后形成。
[4] 上述温度传感器 Tl、 Τ2、 Τ3、 Τ4、 Τ5需要在发泡材料填充前放置在热水器内 胆外的中央部位轴向方向上， 然后再将发泡材料通过发泡填充到热水器内胆和 外壳之间。 但由于发泡材料在发泡过程中容易将上述已放置好的温度传感器冲 离其应处的位置。 这样就使得该温度传感器测量的温度值与预期该温度传感器 需要测量的温度值出现偏差。 这样通过温度传感器测得的温度变化显示出的内 胆中的热水量， 也是不准确的。
[5] 这种温度传感器的安装位置， 使得温度传感器一旦发生故障或连接线出现问题
， 维修或者更换很不方便。
[6] 因此， 如何提供一种热水器， 能够使得温度传感器维修方便， 并且能够实现热 水器水温的准确测量， 是本领域技术人员亟需解决的技术问题。
对发明的公开
技术问题
[7] 本发明的目的是提供一种热水器， 方便温度传感器维修和更换， 并且能够实现 热水器水温的准确测量。 技术解决方案
[8] 为了解决上述问题， 本发明提供一种显示热水量的热水器， 包括外壳、 位于所 述外壳内的内胆， 以及位于所述内胆和所述外壳之间的保温层； 所述热水器还 包括控制器， 以及与所述控制器相连的显示器； 在所述内胆靠近所述加热管一 端的外表面上可拆卸地安装与所述控制器相连的温度传感器。
[9] 优选地， 所述内胆靠近所述加热管一端的外表面焊接具有外螺纹的柱体， 所述 温度传感器前端具有与所述柱体外螺纹配合的螺纹孔或者通孔， 通过所述螺纹 孔或者螺母与柱体配合安装所述温度传感器。
[10] 优选地， 所述温度传感器的个数根据所述热水器的最大容量设定。
[11] 优选地， 所述温度传感器至少为两个， 所述两个温度传感器位于所述内胆的同 一横截面内， 且位于所述内胆轴向水平面的上下两侧。
[12] 优选地， 当热水器最大容量小于 80L, 所述温度传感器为两个或三个， 所述所 有的温度传感器分别位于所述内胆的同一横截面内；
[13] 当所述温度传感器为两个吋， 所述两个温度传感器分别位于所述内胆轴向水平 面的上下两侧；
[14] 当所述温度传感器为三个吋， 其中一个温度传感器位于所述内胆轴向水平面上 ， 另两个温度传感器分别位于所述内胆轴向水平面的上下两侧。
[15] 优选地， 当热水器最大容量大于或等于 80L, 所述温度传感器为四个， 具体为 温度传感器一、 温度传感器二、 温度传感器三和温度传感器四； 四个所述温度 传感器位于所述内胆靠近所述加热管一端外表面的同一横截面内， 所述温度传 感器三位于所述热水器内胆外表面的最底点， 所述温度传感器四位于所述内胆 轴向水平面内， 所述温度传感器一和温度传感器二对称分布于所述位于所述温 度传感器四的两侧。
[16] 优选地， 所述温度传感器一和温度传感器二与所述温度传感器四之间的垂直距 离为所述内胆半径的 1/3至 7/8。 所述控制器接收预先设定对应的水温， 所述水温 的范围具体为 38°C至 50°C。
[17] 与上述背景技术相比， 本发明实施例的热水器， 包括外壳、 位于外壳内的内胆 ， 以及位于内胆和外壳之间的保温层。 由于本发明实施例所述热水器在内胆靠 近所述加热管一端的外表面上可拆卸地安装了温度传感器。 由于温度传感器釆 取的可拆卸地安装方式， 并且安装在靠近所述加热管一端的外表面， 这样可以 方便维修和更换温度传感器。
[18] 此外， 利用螺丝将温度传感器进行安装， 使得温度传感器不容易被保温层的发 泡材料冲走， 保证了温度传感器所测温度的准确性。
[19] 所述热水器的入水管、 出水管的至少一部分由绝缘材料构成， 所述进、 出水管 的形状为 M形、 U形、 螺旋形、 曲线形或绝缘管套叠在非绝缘管内的套管， 在所 述套管结构中， 套叠设置的内外管为直管， 处于所述入水管、 出水管的入水口 至出水口之间的水体的电阻通过结构来保证电阻阻值≥70ΚΩ。 由此可以保证不 会由于热水器的漏电发生伤人事故。
[20] 所述热水器的内胆通过氖泡和电阻组成的电路接地。
[21] 所述热水器的外壳和外挂架之间相互绝缘， 所述氖泡和电阻组成的电路的一端 与热水器内胆连接， 其另一端直接与用于安装热水器的墙体连接。
[22] 所述热水器的外壳与内胆相互绝缘安装， 外挂架和外壳之间、 挂墙螺栓与外挂 架之间均为导电良好的导电连接， 所述氖泡和电阻组成的电路的一端与热水器 内胆连接， 其另一端与外壳导电连接。
有益效果
[23] 根据本发明的这种结构， 可以及吋准确地向使用者提供热水器漏电的报警。
[24] 由于釆用了上述防电墙技术的安全措施， 所以根据本发明的热水器即使出现意 外的漏电也不会伤害使用者。
附图说明
[25] 图 1为现有技术热水器的结构图；
[26] 图 2为本发明所述热水器第一种实施方式结构剖视图；
[27] 图 3为本发明所述热水器第一种实施方式主视图；
[28] 图 4为本发明所述热水器第一种实施方式横截面剖视图；
[29] 图 5为本发明所述温度传感器第一种实施方式结构图；
[30] 图 6为图 5所示 A- Α面剖视图；
[31] 图 7为本发明所述热水器第二种实施方式主视图； [32] 图 8为本发明所述热水器第二种实施方式横截面剖视图。
本发明的实施方式
[33]
[34] 本发明提供一种热水器， 使得温度传感器维修方便， 并且能够实现热水器水温 的准确测量。
[35] 为使本技术领域的技术人员更好地理解本发明方案， 下面结合具体附图和实施 方式对本发明作进一步的详细说明。
[36] 参见图 2、 图 3和图 4。 图 2为本发明所述热水器第一种实施方式结构剖视图； 图 3为本发明所述热水器第一种实施方式主视图； 图 4为本发明所述热水器第一种 实施方式横截面剖视图。
[37] 本发明实施例所述显示热水量的热水器， 包括外壳 1、 位于所述外壳 1内的内胆 2， 以及位于所述内胆 2和所述外壳 1之间的保温层 5。 所述热水器具有一个入水 口 3和一个出水口 4。 入水口 3和出水口 4的上端分别连接有入水管 13和出水管 14 。 所述内胆 2内设置用于加热内胆 2中水的加热管 6。
[38] 在根据本发明的一个实施例中， 所述热水器的入水管 13和 /或出水管 14的至少 一部分由绝缘材料制成。 例如， 入或出水管的下部， 即靠近热水器内胆 2并与内 胆 2相连的那一部分是由导电材料制成的管。 此部分处于在正常使用条件下使用 者不能触及的状态或位置， 例如可以金属管。 而入水管 13或出水管 14的上部， 即远离热水器底部的那部分则由绝缘材料制成。
[39] 根据本发明还可以釆用套管结构， 即入水管 13或出水管 14的一部分直径较小， 而另一部分直径较大， 从而可以将大直径部分套装在小直径部分上， 并且将两 者固定。 在釆用套管结构的情况下， 通常外管由绝缘材料而内管由导电材料制 成制成。 同吋， 在内管的上端设有孔， 从而允许水从内管流出， 再沿外管流动 到达热水器内胆中。
[40] 当然， 根据本发明入水管 13和出水管 14的形状可以曲线形、 螺旋形、 方框形、 M形、 U形等。 即入水管 13和出水管 14不是直管， 而是弯曲或往复弯曲的管。 但 无论釆用那种形状的入水管 13和出水管 14或者釆用套管结构的入水管 13和出水 管 14都需要保证处于入水管 13和出水管 14的入水口 3到出水口 4之间的水体的电 阻阻值≥70ΚΩ。 换言之， 要保证入水管 13和出水管 14的必要长度。
[41] 本发明实施例所述热水器还包括控制器 （图 1中未示出） ， 以及与所述控制器 相连的显示器 （图 1中未示出） 。 所述显示器安装在所述外壳 1的外表面上， 便 于用户观看所述显示器显示的内容。
[42] 在所述内胆 2靠近所述加热管 6—端的外表面上安装与所述控制器相连的温度传 感器。
[43] 所述温度传感器为两个， 其中温度传感器一 8和温度传感器二 7均位于所述热水 器内胆 2靠近所述加热管 6—端的外表面， 且位于同一横截面内。 且温度传感器 二 7和温度传感器一 8分别位于所述内胆 2轴向水平面的上下两侧。
[44] 当然， 温度传感器一 8和温度传感器二 7可以位于热水器内胆 2不同截面的外表 面上， 只需要满足温度传感器靠近所述热水器的能够拆卸的端口一侧， 即位于 所述热水器内胆 2靠近所述加热管 6—端的外表面。
[45] 本发明最佳实施例， 温度传感器二 7距离所述内胆 2轴向水平面的直线距离为所 述内胆 2的半径的 1/2。 温度传感器一 8距离所述内胆 2轴向水平面的直线距离为所 述内胆 2的半径的 1/4。
[46] 所述温度传感器二 7和温度传感器一 8实吋将所测温度值发送到所述控制器， 所 述控制器将单位吋间内所述温度值的变化与预先建立的所述温度变化值和所述 热水量之间的映射表比较， 确定当前热水量， 再通过所述显示器显示。
[47] 预先建立的所述温度变化值和所述热水量之间的映射表是根据实验测得的传感 器的温度变化与热水量之间的关系确定的。 所述温度传感器二 7与温度传感器一 8将所测温度值发送到所述控制器， 所述控制器将根据单位吋间内所述温度值的 变化量， 通过所述温度变化值和所述热水量之间的映射表确定当前内胆 2中的热
[48] 由于所述温度传感器实吋将所测温度值发送到热水器的控制器， 控制器将单位 吋间内温度值的变化量与预先建立的所述温度变化值和所述热水量之间的映射 表比较， 确定当前热水量， 然后通过热水器的显示器进行显示。 本发明实施例 所述热水器能够较准确地显示当前内胆 2中预定温度热水的热水量。
[49] 参见图 5、 图 6， 图 5为本发明所述温度传感器第一种实施方式结构图； 图 6为图 5所示 A- A面剖视图。
[50] 本发明所述热水器在所述内胆 2靠近所述加热管 6—端的外表面焊接具有外螺纹 的柱体， 所述柱体的底部可以无螺纹。
[51] 所述温度传感器前端具有与所述柱体的外螺纹配合的通孔 12。 当安装所述温度 传感器吋， 首先将所述温度传感器的通孔 12对准所述柱体， 套到所述柱体上， 再用与所述柱体外螺纹配合的螺母与所述柱体配合旋紧。 此吋所述温度传感器 就可以被牢牢的固定在所述内胆的外表面上了， 并且与外表面具有良好的接触 。 所述温度传感器后端具有用于连接所述控制器的传感器引线 13。
[52] 本发明所述温度传感器的安装方式具体为： 在所述内胆 2靠近所述加热管 6—端 的外表面焊接具有外螺纹的柱体， 所述温度传感器前端具有与所述柱体外螺纹 配合的螺纹孔 12， 所述温度传感器通过所述螺纹孔 12与所述柱体配合安装。 优 选方式， 所述柱体与所述温度传感器旋合后， 再通过与所述柱体配合的螺母配 合旋紧。
[53] 或者， 在所述温度传感器前端开设通孔， 要求所述通孔大于所述柱体外螺纹的 尺寸， 能够套装在所述柱体上。 所述柱体再通过与所述外螺纹配合的螺母配合 安装。
[54] 由于本发明实施例所述热水器在内胆 2靠近所述加热管 6—端的外表面上安装了 温度传感器。 由于温度传感器是通过螺纹连接安装在内胆 2的外表面， 既能保证 温度传感器的安装强度， 又满足了维修拆卸的可操作性。 由于温度传感器不容 易被形成保温层的发泡材料冲走， 因此能够保证温度传感器所测温度的准确性
[55] 本发明所述温度传感器的安装方式还可以釆用焊接或者其他安装方式， 只要满 足上述安装位置并且具有一定的安装强度即可， 具体安装方式在此不再详述。
[56] 本发明实施例所述热水器在内胆 2靠近所述加热管 6—端的外表面上安装了温度 传感器。 由于温度传感器是通过螺纹或者焊接等固定安装方式安装在内胆 2靠近 所述加热管 6—端的外表面， 因此不容易被保温层的发泡材料冲走， 保证了温度 传感器所测温度的准确性。
[57] 本发明所述热水器的温度传感器的个数， 需要根据所述热水器的最大容量进行 设定的。 当所述热水器的最大容量较大吋， 需要安装 3至 5个温度传感器， 来满 足所测水温准确性的要求。
[58] 当热水器最大容量小于 80L, 所述温度传感器可以为两个或三个或四个。
[59] 当热水器釆用三个温度传感器吋， 其中两个温度传感器的安装位置与上述本发 明所述温度传感器第一种实施方式相同。 所述温度传感器三与上述温度传感器 一 8和温度传感器二 7位于所述内胆的同一横截面内， 温度传感器三安装在所述 热水器内胆 2靠近所述加热管 6—端的外表面且位于所述内胆 2的中间轴向水平面 上。
[60] 当然， 温度传感器一 8和温度传感器二 7与温度传感器三可以位于热水器内胆 2 不同截面的外表面上， 只需要满足温度传感器靠近所述热水器的能够拆卸的端 口一侧， 即位于所述热水器内胆 2靠近所述加热管 6—端的外表面。
[61] 当热水器釆用四个温度传感器吋， 所述四个温度传感器的安装位置可参见下文 中本发明所述热水器第二种实施方式的描述。
[62] 当热水器最大容量大于 80L, 所述温度传感器为四个， 具体为温度传感器一、 温度传感器二、 温度传感器三和温度传感器四； 所述四个温度传感器位于所述 内胆 2靠近所述加热管 6—端外表面的同一横截面内， 其中所述温度传感器三位 于所述热水器内胆外表面的最底点， 所述温度传感器四位于所述内胆轴向水平 面内， 所述温度传感器一和温度传感器二对称分布于所述位于所述温度传感器 四的上下两侧。
[63] 参见图 7和图 8， 图 7为本发明所述热水器第二种实施方式主视图； 图 8为本发明 所述热水器第二种实施方式横截面剖视图。
[64] 本发明所述热水器第二种实施方式， 本发明所述热水器的温度传感器为 4个。
所述四个温度传感器位于所述内胆 2靠近所述加热管 6—端外表面的同一横截面 内。
[65] 所述四个温度传感器具体为位于所述热水器内胆外表面最底点的温度传感器三 12、 位于所述内胆轴向水平面内的温度传感器四 10， 以及对称分布于所述位于 所述温度传感器四 10两侧的温度传感器一 9和温度传感器二 11。
[66] 所述内胆 2的横截面为圆形， 所述温度传感器一 9和温度传感器二 11与所述温度 传感器四 10之间的垂直距离， 优选方式为所述内胆 2半径的 1/2。
[67] 所述内胆 2的横截面为圆形， 所述温度传感器一 9和温度传感器二 11与所述温度 传感器四 10之间的垂直距离， 可以为所述内胆 2半径的 1/3。
[68] 所述内胆 2的横截面为圆形， 所述温度传感器一 9和温度传感器二 11与所述温度 传感器四 10之间的垂直距离， 还可以为所述内胆 2半径的 7/8。
[69] 当然所述温度传感器一 9和温度传感器二 11的具体位置， 还可以根据需要设定 所述温度传感器一 9和温度传感器二 11与所述温度传感器四 10之间的垂直距离均 为 1/3至 7/8之间的某一个具体值。 但需要满足所述四个温度传感器靠近所述加热 管 6—端的内胆 2外表面。 所述四个温度传感器可以位于所述内胆 2的同一横截面 内， 也可以位于不同截面。
[70] 当然所述四个温度传感器位于所述内胆 2的同一横截面， 也可以位于所述内胆 2 的纵向中心平面内， 或者其他横截面内。
[71] 所述温度传感器一 9， 温度传感器四 10、 温度传感器二 11和温度传感器三 12能 够实吋将所测温度值分别发送到所述控制器， 所述控制器将单位吋间内所有的 温度传感器所述温度值的变化与预先建立的所述温度变化值和所述热水量之间 的映射表比较， 确定当前热水量， 再通过所述显示器显示。
[72] 预先建立的所述温度变化值和所述热水量之间的映射表是根据实验测得的四个 温度传感器的温度变化与热水量之间的关系确定的。 所述热水量对应的水温也 是预先设定的， 具体可以为 38至 50°C中某个温度值。 具体可以为 38°C、 40°C、 42 °C、 45°C或者 50°C。
[73] 当然， 预先设定的所述热水量对应的水温也可以根据具体使用者的需要， 设定 其他温度值为热水量的水温。 所述四个温度传感器将所测温度值发送到所述控 制器， 所述控制器将根据单位吋间内所述温度值的变化量， 通过所述温度变化 值和所述热水量之间的映射表确定当前内胆 2中的热水量。
[74] 根据本发明的具体实施例， 通过设置在热水器之外的外挂架将热水器固定在墙 体上。 在所述热水器的内胆 2和大地之间设置氖泡和电阻。 这样将形成一种漏电 报警电路。 当热水器的内胆 2上由于故障原因带电吋， 氖泡将发光。 此吋表明： 热水器有漏电故障， 不能使用。 氖泡和电阻电路的一端总与内胆 2相连， 而其另 一端至少有两种连接方式。 在一种连接方式中， 所述热水器的内胆 2、 外壳 1和 外挂架之间相互绝缘， 由氖泡和电阻组成的电路的另一端则与墙体连接。 在另 一种连接方式中， 所述热水器的内胆 2与外壳 1相互绝缘地安装， 而外挂架和外 壳之间是相互良好导电地连接。 与此同吋， 用于将热水器固定安装在墙上的螺 栓和外挂架之间也是导电良好的连接。 此吋， 氖泡和电阻构成的电路的另一端 与外壳连接。
[75] 这两种方式虽略有区别， 但都实现通过氖泡和电阻组成的电路将热水器内胆与 大地连通。
[76] 以上对本发明所提供的一种热水器进行了详细介绍。 本文中应用了具体个例对 本发明的原理及实施方式进行了阐述， 以上实施例的说明只是用于帮助理解本 发明的方法及其核心思想。 同吋， 对于本领域的一般技术人员， 依据本发明的 思想， 在具体实施方式及应用范围上均会有改变之处， 综上所述， 本说明书内 容不应理解为对本发明的限制。
工业实用性
[77]
序列表自由内容
[78]

Claims

权利要求书
[1] 一种热水器， 包括外壳、 位于所述外壳内的内胆， 以及位于所述内胆和所 述外壳之间的保温层； 其特征在于， 所述热水器还包括控制器， 以及与所 述控制器相连的显示器； 在所述内胆靠近所述加热管一端的外表面上可拆 卸地安装与所述控制器相连的温度传感器。
[2] 根据权利要求 1所述的热水器， 其特征在于， 所述内胆靠近所述加热管一端 的外表面焊接具有外螺纹的柱体， 所述温度传感器前端具有与所述柱体外 螺纹配合的螺纹孔或者通孔， 通过所述螺纹孔或者螺母与柱体配合安装所 述温度传感器。
[3] 根据权利要求 1或 2所述的热水器， 其特征在于， 所述温度传感器的个数根 据所述热水器的最大容量设定。
[4] 根据权利要求 3所述的热水器， 其特征在于， 所述温度传感器至少为两个， 所述两个温度传感器位于所述内胆的同一横截面内， 且位于所述内胆轴向 水平面的上下两侧。
[5] 根据权利要求 4所述的热水器， 其特征在于， 当热水器最大容量小于 80L, 所述温度传感器为两个或三个， 所有的所述温度传感器分别位于所述内胆 的同一横截面内；
所述温度传感器为两个吋， 所述两个温度传感器分别位于所述内胆轴向水 平面的上下两侧；
所述温度传感器为三个吋， 其中一个温度传感器位于所述内胆轴向水平面 上， 另两个温度传感器分别位于所述内胆轴向水平面的上下两侧。
[6] 根据权利要求 4所述的热水器， 其特征在于， 当热水器最大容量大于或等于
80L, 所述温度传感器为四个， 具体为温度传感器一、 温度传感器二、 温 度传感器三和温度传感器四； 四个所述温度传感器位于所述内胆靠近所述 加热管一端外表面的同一横截面内， 所述温度传感器三位于所述热水器内 胆外表面的最底点， 所述温度传感器四位于所述内胆轴向水平面内， 所述 温度传感器一和温度传感器二对称分布于所述位于所述温度传感器四的两
[7] 根据权利要求 6所述的热水器， 其特征在于， 所述内胆的横截面为圆， 所述 温度传感器一和温度传感器二与所述温度传感器四之间的垂直距离为所述 内胆半径的 1/3至 7/8。
[8] 根据权利要求 1或 2所述的热水器， 其特征在于， 所述控制器接收预先设定 对应的水温， 所述水温的范围具体为 38°C至 50°C。
[9] 根据上述权利要求之一所述的热水器， 其特征在于， 所述热水器的进、 出 水管的至少一部分由绝缘材料构成， 所述进、 出水管的形状为 M形、 U形
、 螺旋形、 曲线形或绝缘管套叠在非绝缘管内的套管。
[10] 如权利要求 9所述的热水器， 其特征在于， 所述热水器的内胆通过氖泡和电 阻组成的电路接地。
[11] 如权利要求 9所述的热水器， 其特征在于， 所述热水器的外壳和外挂架之间 相互绝缘， 所述氖泡和电阻组成的电路的一端与热水器内胆连接， 其另一 端直接与用于安装热水器的墙体连接。
[12] 如权利要求 9所述的热水器， 其特征在于， 所述热水器的外壳与内胆相互绝 缘安装， 外挂架和外壳之间、 挂墙螺栓与外挂架之间均为导电良好的导电 连接， 所述氖泡和电阻组成的电路的一端与热水器内胆连接， 其另一端与 外壳电性连接。
PCT/CN2008/073523 2007-12-17 2008-12-16 Dispositif de chauffage d'eau WO2009082925A1 (fr)

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