WO2021223771A1 - 防烫模块及电热水器 - Google Patents

防烫模块及电热水器 Download PDF

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Publication number
WO2021223771A1
WO2021223771A1 PCT/CN2021/095534 CN2021095534W WO2021223771A1 WO 2021223771 A1 WO2021223771 A1 WO 2021223771A1 CN 2021095534 W CN2021095534 W CN 2021095534W WO 2021223771 A1 WO2021223771 A1 WO 2021223771A1
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WIPO (PCT)
Prior art keywords
water
pipe
plunger
pipe body
water inlet
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Application number
PCT/CN2021/095534
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English (en)
French (fr)
Inventor
赵龙
孙强
赵小勇
盛保敬
Original Assignee
青岛经济技术开发区海尔热水器有限公司
海尔智家股份有限公司
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Application filed by 青岛经济技术开发区海尔热水器有限公司, 海尔智家股份有限公司 filed Critical 青岛经济技术开发区海尔热水器有限公司
Publication of WO2021223771A1 publication Critical patent/WO2021223771A1/zh

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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
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • 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
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details

Definitions

  • the invention belongs to the technical field of household appliances, and in particular relates to an anti-scalding module and an electric water heater.
  • electric water heaters are commonly used household appliances in people's daily lives.
  • the electric water heater is usually equipped with a water tank and an electric heating tube arranged in the water tank, and the heat pipe of the motor heats the water in the water tank after being energized.
  • a water inlet pipe and a water outlet pipe are connected to the water tank, the cold water enters the water tank through the water inlet pipe, and the hot water in the water tank is output from the water outlet pipe.
  • a bypass pipe is added between the water inlet pipe and the water outlet pipe of the water tank to realize the mixing of the hot water output from the water outlet pipe and the cold water delivered by the bypass pipe.
  • Play a role in preventing scalding For example, China Patent No. 200810218710.6 discloses a water heater, which is equipped with a solenoid valve on the bypass pipe, and the switch of the solenoid valve is triggered by a temperature probe set on the water outlet pipe.
  • the invention provides an anti-scalding module and an electric water heater, which adopts a mechanical temperature sensing drive component to automatically control the mixing of cold and hot water without using a solenoid valve, and improves the reliability of the anti-scalding module to improve the reliability of the electric water heater. sex.
  • the present invention provides an anti-scalding module, including:
  • a first pipe body, one port of the first pipe body is a water outlet, and the other pipe port is an installation port, and a first water inlet and a second water inlet are provided on the pipe wall of the first pipe body;
  • a second pipe body, the second pipe body is arranged on the side wall of the first pipe body and communicates with the first water inlet;
  • a third pipe body, the third pipe body is arranged on the side wall of the first pipe body and communicates with the second water inlet;
  • An automatic temperature adjustment assembly includes a plunger, a sealing plug, and a temperature-sensitive driving component.
  • the plunger is provided with a mounting hole and at least one through hole, and the through hole is located on one of the mounting holes.
  • the temperature-sensitive driving component includes a cylinder body and a push rod, the push rod is inserted into the cylinder body, a temperature-sensitive cavity is formed between the push rod and the inside of the cylinder body, and the temperature-sensitive cavity The body is filled with thermal expansion and contraction materials, and the cylinder body is arranged in the mounting hole;
  • the sealing plug is arranged on the installation port, the plunger is slidably arranged in the first pipe body, and the inside of the first pipe body is between the plunger and the sealing plug A cold water cavity is formed between, and the push rod is arranged opposite to the sealing plug; the thermal expansion and contraction material is used to drive the push rod to move depending on the temperature change of the water outlet of the water outlet, and the push rod is used for Cooperating with the sealing plug to drive the plunger to slide to control the second water inlet to selectively communicate with the cold water cavity.
  • the automatic temperature adjustment assembly further includes: a sealing ring, the sealing ring is sleeved on the plunger and sandwiched between the plunger and the inner tube wall of the first tube body, the sealing ring Located between the first water inlet and the second water inlet.
  • the automatic temperature regulation assembly further includes an elastic resetting component, and the elastic resetting component is used to apply an elastic force toward the sealing plug to the plunger or the cylinder.
  • the elastic return member is a spring
  • the spring is located in the first tube, one end of the spring abuts on the plunger or the cylinder, and the other end of the spring Leaning against the first tube body.
  • a limiting plate is provided at a position close to the water outlet inside the first pipe body, and the other end of the spring abuts against the limiting plate.
  • a guide post extending toward the water outlet is provided on the cylinder, and the spring is sleeved on the guide post.
  • the elastic reset member is an elastic piece, the elastic piece is located in the first tube body, one end of the elastic piece abuts on the plunger or the cylinder, and the other end of the elastic piece Leaning against the first tube body.
  • a first retaining ring is provided on the sealing plug
  • a second retaining ring is provided on one end of the plunger
  • the second retaining ring surrounds the outside of the through hole
  • a step surface is provided in the first pipe body, and the step surface is located between the water outlet and the first water inlet; a third retaining ring is provided on one end surface of the plunger, and A water gap is formed between the third retaining ring and the step surface.
  • the present invention also provides an electric water heater, including a water tank, the water tank has a water inlet pipe and a water outlet pipe, the water inlet pipe is provided with a tee, and also includes the anti-scalding module;
  • the second pipe body is connected with the water outlet pipe, and the third pipe body of the anti-scalding module is connected with the tee through a connecting water pipe.
  • the advantages and positive effects of the present invention are: by arranging an automatic temperature adjustment assembly on the first pipe body, the temperature sensing driving component in the automatic temperature adjustment assembly can control the second inlet according to the water temperature of the water outlet.
  • the on-off between the water inlet and the cold water cavity can automatically adjust the mixing amount of cold water and hot water without the need for additional temperature sensors and solenoid valves to control the on-off of the cold water.
  • the use of mechanical automatic temperature control components has better Reliability, thereby improving the use reliability of the anti-scalding module to improve the use reliability of the electric water heater.
  • Figure 1 is one of the structural schematic diagrams of an embodiment of the anti-scalding module of the present invention
  • Figure 2 is an exploded view of the anti-scalding module in Figure 1;
  • Fig. 3 is a schematic diagram of the structure of the plunger in Fig. 1;
  • Figure 5 is a cross-sectional view A-A in Figure 4.
  • FIG. 6 is the third structural diagram of an embodiment of the anti-scalding module of the present invention.
  • Figure 7 is a cross-sectional view taken along line B-B in Figure 6;
  • Figure 8 is a schematic structural view of another embodiment of the anti-scalding module of the present invention.
  • Fig. 9 is a schematic structural diagram of an embodiment of an electric water heater of the present invention.
  • the terms “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, “inner”, “outer”, etc. indicate directions or positions The term of relationship is based on the direction or position relationship shown in the drawings, which is only for ease of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as Restrictions on the present invention.
  • the terms “first” and “second” are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.
  • this embodiment proposes an anti-scalding module, which is used to install on the outlet pipe of the water tank of the electric water heater to achieve the purpose of anti-scalding.
  • the anti-scalding module includes: a first tube body 1, a second tube body 2, a third tube body 3 and an automatic temperature adjustment assembly 4.
  • One port of the first pipe body 1 is a water outlet 11, and the other pipe port is a mounting port 12.
  • a first water inlet 13 and a second water inlet 14 are provided on the pipe wall of the first pipe body 1;
  • the second pipe body 2 is arranged on the side wall of the first pipe body 1 and communicates with the first water inlet 13;
  • the third pipe body 3 is arranged on the side wall of the first pipe body 1 and communicates with the second water inlet 14;
  • the automatic temperature adjustment assembly 4 includes a plunger 41, a sealing plug 42 and a temperature-sensitive driving component 43.
  • the plunger 41 is provided with a mounting hole 411 and at least one through hole 412.
  • the through hole 412 is located on one side of the mounting hole 411.
  • the driving component 43 includes a cylinder 431 and a push rod 432.
  • the push rod 432 is inserted into the cylinder 431.
  • a temperature sensing cavity is formed between the push rod 432 and the inside of the cylinder 431, and the temperature sensing cavity is filled with thermal expansion and cooling. Shrink material (not shown), the cylinder 431 is set in the mounting hole 411;
  • the sealing plug 42 is arranged on the installation port 12, the plunger 41 is slidably arranged in the first pipe body 1, and the inside of the first pipe body 1 forms a cold water cavity between the plunger 41 and the sealing plug 42.
  • the push rod 432 is arranged opposite to the sealing plug 42; the thermal expansion and contraction material is used to drive the push rod 432 to move depending on the change in the temperature of the water outlet 11, and the push rod 432 is used to cooperate with the sealing plug 42 to drive the plunger 41 slides to control the second water inlet 14 to selectively communicate with the cold water cavity.
  • the first pipe body 1 in the present embodiment is provided with an automatic temperature adjustment assembly 4, so that the temperature of the outlet 11 is automatically adjusted by the automatic temperature adjustment assembly 4, thereby avoiding the hot water output from the outlet 11 The temperature is too high and burns the user.
  • the second pipe body 2 is used to input hot water
  • the third pipe body 3 is used to input cold water.
  • the hot water enters the first pipe body 1 and is output through the water outlet 11, while the cold water in the third pipe body 3 is controlled by the automatic temperature adjustment component 4 to control the amount of cold water entering.
  • the thermal expansion and contraction material in the cylinder 431 in the temperature-sensitive driving component 43 expands and causes the push rod 432 to abut against the sealing plug 42.
  • the push rod 432 uses the force generated by the thermal expansion and contraction material to push the cylinder 431 to drive the plunger 41 to move toward the water outlet 11, thereby causing the second water inlet 14 arranged on the first pipe body 1 to be formed with the inside thereof.
  • the cold water cavity is connected.
  • the cold water introduced by the third tube body 3 enters the cold water cavity, and the cold water flows out through the through hole 412 and is mixed with the hot water flowing in the first water inlet 13, and finally, reduces the water outlet temperature of the water outlet 11. , And then achieve the prevention of the phenomenon of users being burned.
  • the push rod 432 is controlled to move, so as to realize the control of the second water inlet 14 to selectively communicate with the cold water cavity.
  • the conventional technique of using paraffin wax for temperature control can be adopted.
  • the paraffin wax filling material in the paraffin wax thermostat can be used, and the paraffin wax filling material can be used.
  • the specific group allocation ratio is not limited here.
  • the push rod 432 in the automatic temperature adjustment assembly 4 is set to have a certain distance from the sealing plug 42 in the initial state, thereby achieving Perform more accurate temperature control within a certain temperature range. For example: when the water outlet temperature of the water outlet 11 is lower than the first set temperature T1, a gap is formed between the free end of the push rod 432 and the sealing plug 42; the water outlet temperature at the water outlet 11 is higher than the second set temperature At T2, the free end of the push rod 432 abuts on the sealing plug 42.
  • the temperature value of T2 is greater than the temperature value of T1.
  • the push rod 432 is in a fully retracted state .
  • the push rod 432 gradually extends outward relative to the cylinder 431 under the action of the thermal expansion and contraction material, and before the water outlet temperature of the water outlet 11 reaches T2 ,
  • the plunger 41 is in a stationary state to keep the second water inlet 14 disconnected from the cold water cavity. In this way, it can be ensured that the user uses hot water within the set temperature range, thereby avoiding adding cold water to the user when the temperature of the hot water is not high, causing the user's water temperature to be too low.
  • T1 and T2 are mainly based on the temperature required by the user's hot water use needs in different situations.
  • T2 is used as a trigger to mix with cold water to avoid scalding the user.
  • Trigger value For example: Taking a normal household as an example, T1 can be set to a value of 40 degrees, and T2 can be set to a value of 50 degrees; when the hot water entering the first pipe body 1 is below 50 degrees, the third pipe body 3 The cold water in the tube will not enter the first tube body 1.
  • the cold water delivered in the third tube body 3 enters the first tube body 1 and mixes with the hot water to reduce the output The temperature of the water output from the nozzle 11.
  • the automatic temperature adjustment assembly 4 further includes a sealing ring 44, which is sleeved on the plunger 41 and clamped Between the plunger 41 and the inner tube wall of the first tube body 1, the sealing ring 44 is located between the first water inlet 13 and the second water inlet 14.
  • the sealing ring 44 will tightly abut on the inner pipe wall of the first pipe body 1, and the sealing ring 44 is used to connect the first water inlet 13 and The second water inlet 14 is spaced apart to prevent the cold and hot water entering from the first water inlet 13 and the second water inlet 14 from affecting each other.
  • the automatic temperature control assembly 4 further includes an elastic resetting part 45, and the elastic resetting part 45 is used to apply an elastic force toward the sealing plug 42 to the plunger 41 or the cylinder 431.
  • the push rod 432 extends out and abuts against the sealing plug 42 to drive the plunger 41 to move, so that the second water inlet 14 and the cold water cavity The body is connected.
  • the temperature of the water in the first pipe body 1 is lowered, in order to avoid the temperature of the water outlet 11 from being too low, it is necessary to reduce or cut off the water path between the second water inlet 14 and the cold water cavity in time.
  • the elastic reset member 45 can drive the plunger 41 to reset when the push rod 432 retracts, thereby reducing or cutting off the second water inlet 14 and the cold water. Waterway between cavities.
  • the elastic return member 45 may be a spring or an elastic piece.
  • the spring is located in the first tube 1, one end of the spring abuts against the plunger 41 or the cylinder 431, and the other end of the spring abuts against the first tube 1 .
  • the spring against the cylinder 431 the spring can apply a spring force to the cylinder 431, and the direction of the spring force is toward the sealing plug 42.
  • the push rod 432 abuts on the sealing plug 42 to drive the cylinder 431 and the plunger 41 to move, thereby compressing the spring.
  • the push rod 432 retracts, and the spring drives the cylinder 431 to drive the plunger 41 to move in the reverse direction to reset, so as to cut off the second water inlet 14 and the cold water cavity.
  • a limit plate 15 is provided inside the first tube body 1 near the water outlet 11, and the other end of the spring abuts against the limit plate 15 15 on the bit board.
  • the limiting plate 15 can support the spring, so that the spring is squeezed between the limiting plate 15 and the plunger 41 or the cylinder 431.
  • the limiting plate 15 may be a ring-shaped structure, on the one hand, it can play a good supporting effect on the spring, on the other hand, the limiting plate 15 of the ring-shaped structure can reduce the obstruction of water flow, so as to ensure the smooth water outlet of the water outlet 11.
  • a guide post 433 extending in the direction of the water outlet 11 can also be provided on the cylinder 431.
  • the spring is sleeved on the guide post 433.
  • the guide post 433 can support and shape the spring, and then compress the spring. In order to ensure that the posture of the spring does not skew, the assembly reliability is improved.
  • the plunger 41 is used to control the on-off of the flow path between the second water inlet 14 and the cold water cavity more reliably, and a first retaining ring 421 is provided on the sealing plug 42.
  • a second retaining ring 413 is provided on one end surface of the plunger 41, and the second retaining ring 413 surrounds the outside of the through hole 412; after the first retaining ring 421 and the second retaining ring 413 abut against each other, the first retaining ring 421 The edge of ⁇ and the edge of the second retaining ring 413 cooperate with each other to form a sealing water blocking surface.
  • a step surface 16 may also be provided in the first pipe body 1, and the step surface 16 is located between the water outlet 11 and the first water inlet 13.
  • the plunger 41 is provided with a third retaining ring on one end surface, and a water gap is formed between the third retaining ring and the step surface 16. Specifically, when it is necessary to mix cold and hot water, the plunger 41 moves toward the water outlet 11, so that the distance of the water gap formed between the third retaining ring and the step surface 16 becomes smaller, so as to reduce heat. The outflow of water can adjust the water temperature more quickly and efficiently to meet the requirements of anti-scalding.
  • the sealing plug 42 is further provided with a positioning plate 422, and the positioning plate 422 can cooperate with the push rod 432 to exert a reverse thrust on the push rod 432.
  • the sealing plug 42 is threadedly connected with a screw 423, and one end of the screw 423 is connected to a positioning plate 422 is connected, and the other end of the screw 423 extends to the outside of the sealing plug 42.
  • the distance between the positioning plate 422 and the push rod 432 in the retracted state can be adjusted by rotating the screw 423 to adjust the temperature of triggering water mixing.
  • the screw 423 is rotated to the maximum stroke of the outside, so that the push rod 432 in the extended state is not aligned with the positioning
  • the plate 422 is in contact to realize high-temperature water discharge without mixing water treatment, which is more conducive to improving the user's requirements for the diversity of water temperature.
  • this embodiment proposes an electric water heater, including a water tank 100, the water tank 100 has a water inlet pipe 101 and a water outlet pipe 102, the water inlet pipe 101 is provided with a three-way 103, and also includes the above anti-scalding module 200;
  • the second pipe body of the anti-scalding module 200 is connected to the water outlet pipe 102, and the third pipe body of the anti-scalding module 200 is connected to the tee 103 through the connecting water pipe 300.
  • the specific structure of the electric water heater is not limited here, but for the anti-scalding module, it can be connected to the outlet pipe 102, and then the hot water output from the water tank 100 after heating passes through the outlet pipe 102 Into the anti-scalding module 200, similarly, the cold water in the water inlet pipe 101 is connected to the external water supply source through the tee 103. At the same time, the cold water can be flowed to the connecting water pipe 300 through the tee 103 to enter the anti-scalding module 200. In order to achieve the purpose of preventing scalding.

Abstract

本发明公开了一种防烫模块及电热水器。防烫模块，包括：第一管体，第一管体的一端口为出水口、另一管口为安装口，第一管体的管壁上设置有第一进水口和第二进水口；第二管体，第二管体设置在第一管体的侧壁上并与第一进水口连通；第三管体，第三管体设置在第一管体的侧壁上并与第二进水口连通；自动调温组件，自动调温组件包括柱塞、密封堵头和温感驱动部件，温感驱动部件包括缸体和推杆，推杆与缸体内部之间形成温感腔体，温感腔体中填充有热胀冷缩材料，缸体设置在安装孔中。本发明采用机械式的温感驱动部件来自动控制冷热水混合，提高防烫模块的使用可靠性以提高电热水器的使用可靠性。

Description

防烫模块及电热水器 技术领域
本发明属于家用电器技术领域，尤其涉及一种防烫模块及电热水器。
 背景技术
目前，电热水器是人们日常生活中常用的家用电器。电热水器通常配置有水箱以及设置在水箱中的电加热管，电机热管通电后对水箱内的水进行加热。同时，水箱上连接有进水管和出水管，冷水经由进水管进入到水箱，而水箱中的热水则从出水管输出。
现有技术中的电热水器，为了避免发生烫伤用户的情况，则会在水箱的进水管和出水管之间增加旁通管，以实现从出水管输出的热水与旁通管输送的冷水混合，起到防烫伤的作用。例如正：中国专利号200810218710.6公开了一种热水器，旁通管上配置有电磁阀，电磁阀的开关则通过出水管上设置的温度探头来触发。
 技术问题
但是，在实际使用过程中，由于采用检测温度信号来触发电磁阀来动作，两个电子元件出现故障的几率较大，进而使得电热水器的整体使用可靠性降低。鉴于此，如何设计一种使用可靠性高的电热水器是本发明所要解决的技术问题。
 技术解决方案
本发明提供了一种防烫模块及电热水器，采用机械式的温感驱动部件来自动控制冷热水混合，而无需采用电磁阀，提高防烫模块的使用可靠性以提高电热水器的使用可靠性。
为达到上述技术目的，本发明采用以下技术方案实现：
在一个方面，本发明提供了一种防烫模块，包括：
第一管体，所述第一管体的一端口为出水口、另一管口为安装口，所述第一管体的管壁上设置有第一进水口和第二进水口；
第二管体，所述第二管体设置在所述第一管体的侧壁上并与所述第一进水口连通；
第三管体，所述第三管体设置在所述第一管体的侧壁上并与所述第二进水口连通；
自动调温组件，所述自动调温组件包括柱塞、密封堵头和温感驱动部件，所述柱塞上设置有安装孔和至少一个贯通孔，所述贯通孔位于所述安装孔的一侧，所述温感驱动部件包括缸体和推杆，所述推杆插入到所述缸体中，所述推杆与所述缸体内部之间形成温感腔体，所述温感腔体中填充有热胀冷缩材料，所述缸体设置在所述安装孔中；
其中，所述密封堵头设置在所述安装口上，所述柱塞可滑动的设置在所述第一管体中，所述第一管体内部在所述柱塞与所述密封堵头之间形成冷水腔体，所述推杆与所述密封堵头相对布置；所述热胀冷缩材料用于依靠所述出水口的出水温度变化来驱动所述推杆移动，所述推杆用于与所述密封堵头配合来带动所述柱塞滑动以控制所述第二进水口选择性连通所述冷水腔体。
进一步的，所述自动调温组件还包括：密封圈，所述密封圈套在所述柱塞上并夹在所述柱塞和所述第一管体的内管壁之间，所述密封圈位于所述第一进水口和所述第二进水口之间。
进一步的，所述自动调温组件还包括弹性复位部件，所述弹性复位部件用于对所述柱塞或所述缸体施加朝向所述密封堵头方向的弹力。
进一步的，所述弹性复位部件为弹簧，所述弹簧位于所述第一管体中，所述弹簧的一端部抵靠在所述柱塞或所述缸体上，所述弹簧的另一端部抵靠在所述第一管体上。
进一步的，所述第一管体内部靠近所述出水口的位置设置有限位板，所述弹簧的另一端部抵靠在所述限位板上。
进一步的，所述缸体上设置有朝向所述出水口方向延伸的导向柱，所述弹簧套在所述导向柱上。
进一步的，所述弹性复位部件为弹片，所述弹片位于所述第一管体中，所述弹片的一端部抵靠在所述柱塞或所述缸体上，所述弹片的另一端部抵靠在所述第一管体上。
进一步的，所述密封堵头上设置有第一挡圈， 所述柱塞的一端面设置有第二挡圈，所述第二挡圈围绕在所述贯通孔的外部；在所述第一挡圈与所述第二挡圈抵靠在一起后，所述第一挡圈的边缘与所述第二挡圈的边缘相互配合以形成密封阻水面。
进一步的，所述第一管体中设置有台阶面，所述台阶面位于所述出水口和所述第一进水口之间；所述柱塞的一端面设置有第三挡圈，所述第三挡圈与所述台阶面之间形成流水间隔。
在另一个方面，本发明还提供了一种电热水器，包括水箱，所述水箱具有进水管和出水管，所述进水管上设置有三通，还包括上述防烫模块；所述防烫模块的第二管体与所述出水管连接，所述防烫模块的第三管体通过连接水管与所述三通连接。
 有益效果
与现有技术相比，本发明的优点和积极效果是：通过在第一管体上配置自动调温组件，自动调温组件中的温感驱动部件能够根据出水口的水温来控制第二进水口与冷水腔体之间的通断，实现自动调节冷水和热水的混合量，而无需额外配置温度传感器和电磁阀来控制冷水的通断，采用机械式的自动调温组件具有更好的可靠性，进而提高了防烫模块的使用可靠性以提高电热水器的使用可靠性。
 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明防烫模块一实施例的结构示意图之一;
图2为图1中防烫模块的爆炸图；
图3为图1中柱塞的结构示意图；
图4为本发明防烫模块一实施例的结构示意图之二；
图5为图4中A-A向剖视图;
图6为本发明防烫模块一实施例的结构示意图之三；
图7为图6中B-B向剖视图;
图8为本发明防烫模块另一实施例的结构示意图;
图9为本发明电热水器一实施例的结构示意图。
 本发明的最佳实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明的是，在本发明的描述中，术语“上”、“下”、“左”、“右”、“竖”、“横”、“内”、“外”等指示的方向或位置关系的术语是基于附图所示的方向或位置关系，这仅仅是为了便于描述，而不是指示或暗示所述装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性。
实施例一，如图1-图7所示，本实施例提出了一种防烫模块，防烫模块用于安装在电热水器中水箱的出水管上，以达到防烫的目的。
其中，所述防烫模块包括：第一管体1、第二管体2、第三管体3和自动调温组件4。
第一管体1的一端口为出水口11、另一管口为安装口12，第一管体1的管壁上设置有第一进水口13和第二进水口14；
第二管体2设置在第一管体1的侧壁上并与第一进水口13连通；
第三管体3设置在第一管体1的侧壁上并与第二进水口14连通；
自动调温组件4包括柱塞41、密封堵头42和温感驱动部件43，柱塞41上设置有安装孔411和至少一个贯通孔412，贯通孔412位于安装孔411的一侧，温感驱动部件43包括缸体431和推杆432，推杆432插入到缸体431中，推杆432与缸体431内部之间形成温感腔体，所述温感腔体中填充有热胀冷缩材料（未图示），缸体431设置在安装孔411中；
其中，密封堵头42设置在安装口12上，柱塞41可滑动的设置在第一管体1中，第一管体1内部在柱塞41与密封堵头42之间形成冷水腔体，推杆432与密封堵头42相对布置；所述热胀冷缩材料用于依靠出水口11的出水温度变化来驱动推杆432移动，推杆432用于与密封堵头42配合来带动柱塞41滑动以控制第二进水口14选择性连通所述冷水腔体。
具体而言，本实施例中的第一管体1中设置有自动调温组件4，以通过自动调温组件4来自动调节出水口11的出水温度，进而避免从出水口11输出的热水温度过高而烫伤用户。
在实际使用时，则第二管体2用于输入热水，而第三管体3用于输入冷水。热水进入到第一管体1中并经由出水口11输出，而对于第三管体3中的冷水则由自动调温组件4来控制冷水的进入量。具体为：当出水口11的出水温度过高时，则温感驱动部件43中缸体431内的热胀冷缩材料发生膨胀并使得推杆432抵靠在密封堵头42上。推杆432利用所述热胀冷缩材料产生的力将推动缸体431带动柱塞41朝向出水口11方向移动，进而使得第一管体1上配置的第二进水口14与其内部形成的所述冷水腔体相连通。
此时，第三管体3引入的冷水并进入到所述冷水腔体中，冷水经由贯通孔412流出并与第一进水口13流入的热水进行混合，最终，降低出水口11的出水温度，进而达到防治用户被烫伤的现象发生。
而由于自动调温组件4依靠热胀冷缩材料根据温度变化而发生体积变化，以控制推杆432移动，进而实现控制第二进水口14选择性的与所述冷水腔体连通。
在某些实施例中，对于热胀冷缩材料的选择，则可以采用常规技术中利用石蜡来进行温度控制的方案，例如可以采用石蜡温控器中的石蜡填充材料，而有关石蜡填充料的具体的组分配比，在此不做限制。
在另一些实施例中，为了实现在设定温度范围内进行有效的温度控制，则设置自动调温组件4中的推杆432在初始状态下距离密封堵头42具有一定的距离，进而可以实现在某一温度区间内进行更加准确的控温。例如：在出水口11的出水温度低于第一设定温度T1时，推杆432的自由端部与密封堵头42之间形成间隔；在出水口11的出水温度高于第二设定温度T2时，推杆432的自由端部抵靠在密封堵头42上。
具体的，T2的温度值大于T1的温度值，在第一管体1的出水口11向外输出热水的过程中，当水温低于T1的情况下，推杆432处于完全回缩的状态，而在出水口11的出水温度大于T1后，推杆432在所述热胀冷缩材料的作用下相对于缸体431逐渐向外伸出，而在出水口11的出水温度未达到T2之前，则柱塞41处于不动的状态，以保持第二进水口14与所述冷水腔体断开。这样，便可以保证用户在设定的温度范围内使用热水，进而避免在热水温度不高的情况下再加入冷水而造成用户用水温度过低。
而在实际应用过程中，有关T1和T2的取值，在此不做限制，主要根据不同情况下用户的热水使用需求所要求的温度，T2作为触发使用冷水进行混合以避免烫伤用户的温度触发值。例如：以正常家用为例，则T1可以取值为40度，而T2可以取值为50度；进入到第一管体1中的热水在50度以下的情况下，第三管体3中的冷水不会进入到第一管体1中。而在第一管体1中的水温超过50度后，为了避免热水烫伤用户，则第三管体3中输送的冷水进入到第一管体1中并与热水混合，以降低从出水口11输出的水温温度。
在另一个实施例中，为了避免第二管体2和第三管体3进入的水相互影响，则自动调温组件4还包括：密封圈44，密封圈44套在柱塞41上并夹在柱塞41和第一管体1的内管壁之间，密封圈44位于第一进水口13和第二进水口14之间。
具体的，在将柱塞41放入到第一管体1中后，密封圈44将紧密的贴靠在第一管体1的内管壁上，利用密封圈44将第一进水口13和第二进水口14间隔开，以避免从第一进水口13和第二进水口14进入的冷热水相互影响。
在一些实施例中，自动调温组件4还包括弹性复位部件45，弹性复位部件45用于对柱塞41或缸体431施加朝向密封堵头42方向的弹力。
具体的，当第一管体1中的水温较高时，推杆432伸出并抵靠在密封堵头42上，以带动柱塞41移动，进而使得第二进水口14与所述冷水腔体连通。而当第一管体1中的水温降低后，为了避免出水口11出水温度过低，则需要及时的减小或截断第二进水口14与所述冷水腔体之间的水路。而通过配置弹性复位部件45，利用弹性复位部件45施加的弹力，在推杆432回缩时，弹性复位部件45能够驱动柱塞41复位，进而减小或截断第二进水口14与所述冷水腔体之间的水路。
在某一实施例中，弹性复位部件45可以采用弹簧或弹片。以弹簧为例，所述弹簧位于第一管体1中，所述弹簧的一端部抵靠在柱塞41或缸体431上，所述弹簧的另一端部抵靠在第一管体1上。以弹簧抵靠在缸体431上为例进行说明，弹簧能够对缸体431施加弹簧力，弹簧力的方向朝向密封堵头42。当出水口11的温度高于T2并需要进行冷热水混合时，则推杆432抵靠在密封堵头42上，以带动缸体431和柱塞41移动，进而压缩弹簧。而在出水口11的温度低于T2的情况下，则推杆432回缩，并利用弹簧驱动缸体431带动柱塞41反向移动复位，以截断第二进水口14与所述冷水腔体之间的流路。
在某些实施例中，为了方便将弹簧安装在第一管体1内，则第一管体1内部靠近出水口11的位置设置有限位板15，所述弹簧的另一端部抵靠在限位板15上。具体的，限位板15能够对弹簧进行支撑，进而使得弹簧挤压在限位板15和柱塞41或缸体431之间。其中，限位板15可以为环形结构，一方面能够对弹簧起到良好的支撑作用，另一方面环形结构的限位板15能够减少对水流的阻挡，以确保出水口11顺畅的出水。另外，还可以在缸体431上设置有朝向出水口11方向延伸的导向柱433，所述弹簧套在导向柱433上，利用导向柱433能够对弹簧起到支撑定型的作用，进而在压缩弹簧时，以确保弹簧的姿态不会发生歪斜，进而提高组装可靠性。
优选实施例中，为例更加可靠的通过柱塞41来控制第二进水口14与所述冷水腔体之间流路的通断，则在密封堵头42上设置有第一挡圈421， 柱塞41的一端面设置有第二挡圈413，第二挡圈413围绕在贯通孔412的外部；在第一挡圈421与第二挡圈413抵靠在一起后，第一挡圈421的边缘与第二挡圈413的边缘相互配合以形成密封阻水面。具体的，当需要截断第二进水口14与所述冷水腔体之间的流路时，则第一挡圈421与第二挡圈413抵靠在一起后，在两者之间形成的连接部位构成密封阻水面，以切断第二进水口14与所述冷水腔体之间的流路。而当需要通过第二进水口14进入的冷水与热水进行混合水时，柱塞41移动以使得第二挡圈413远离开第一挡圈421，进而使得第二进水口14与所述冷水腔体之间的流路导通。
同样的，为了更好的起到防烫的目的，则在一实施例中，还可以在第一管体1中设置有台阶面16，台阶面16位于出水口11和第一进水口13之间；柱塞41的一端面设置有第三挡圈，所述第三挡圈与台阶面16之间形成流水间隔。具体的，当需要进行冷热水混合时，由于柱塞41朝向出水口11方向移动，进而使得所述第三挡圈与台阶面16之间形成的流水间隔的距离变小，以实现减少热水的流出量，进而能够更加快捷高效的调节水温以达到防烫的要求。
在某些实施例中，密封堵头42上还设置有定位板422，定位板422能够与推杆432配合，以起到对推杆432施加反向推力的作用。
实施例二，如图8所示，基于上述实施例一，为了方便用户或操作人员来调节触发混水的温度，则密封堵头42上螺纹连接有螺杆423，螺杆423的一端部与定位板422连接，螺杆423的另一端部延伸至密封堵头42的外部。当需要调节触发混水的温度时，则通过转动螺杆423来调节定位板422与回缩状态下推杆432之间的距离，便可以调节触发混水的温度。同样的，在某些特殊情况下，当用户需要用高温水而不需要进行混水的情况下，则通过将螺杆423旋转至外部最大行程处，以使得伸出状态的推杆432不与定位板422接触，进而实现高温出水而不进行混水处理，更有利于提高用户对用水温度多样性的要求。
实施例三，如图9所示，本实施例提出了一种电热水器，包括水箱100，水箱100具有进水管101和出水管102，进水管101上设置有三通103，还包括上述防烫模块200；防烫模块200的第二管体与出水管102连接，防烫模块200的第三管体通过连接水管300与三通103连接。
在本实施例中，有关电热水器的具体结构形式在此不做限制，而对于防烫模块而言，其可以连接在出水管102上，进而水箱100中加热后输出的热水经由出水管102进入到防烫模块200中，同样的，对于进水管101的冷水则通过三通103与外界的供水源连接，同时，通过三通103可以将冷水分流至连接水管300以进入到防烫模块200中进行混水以达到防烫的目的。
以上实施例仅用以说明本发明的技术方案，而非对其进行限制；尽管参照前述实施例对本发明进行了详细的说明，对于本领域的普通技术人员来说，依然可以对前述实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或替换，并不使相应技术方案的本质脱离本发明所要求保护的技术方案的精神和范围。

Claims (10)

  1. 一种防烫模块，其特征在于，包括：
    第一管体，所述第一管体的一端口为出水口、另一管口为安装口，所述第一管体的管壁上设置有第一进水口和第二进水口；
    第二管体，所述第二管体设置在所述第一管体的侧壁上并与所述第一进水口连通；
    第三管体，所述第三管体设置在所述第一管体的侧壁上并与所述第二进水口连通；
    自动调温组件，所述自动调温组件包括柱塞、密封堵头和温感驱动部件，所述柱塞上设置有安装孔和至少一个贯通孔，所述贯通孔位于所述安装孔的一侧，所述温感驱动部件包括缸体和推杆，所述推杆插入到所述缸体中，所述推杆与所述缸体内部之间形成温感腔体，所述温感腔体中填充有热胀冷缩材料，所述缸体设置在所述安装孔中；
    其中，所述密封堵头设置在所述安装口上，所述柱塞可滑动的设置在所述第一管体中，所述第一管体内部在所述柱塞与所述密封堵头之间形成冷水腔体，所述推杆与所述密封堵头相对布置；所述热胀冷缩材料用于依靠所述出水口的出水温度变化来驱动所述推杆移动，所述推杆用于与所述密封堵头配合来带动所述柱塞滑动以控制所述第二进水口选择性连通所述冷水腔体。
  2. 根据权利要求1所述的防烫模块，其特征在于，所述自动调温组件还包括：密封圈，所述密封圈套在所述柱塞上并夹在所述柱塞和所述第一管体的内管壁之间，所述密封圈位于所述第一进水口和所述第二进水口之间。
  3. 根据权利要求1所述的防烫模块，其特征在于，所述自动调温组件还包括弹性复位部件，所述弹性复位部件用于对所述柱塞或所述缸体施加朝向所述密封堵头方向的弹力。
  4. 根据权利要求3所述的防烫模块，其特征在于，所述弹性复位部件为弹簧，所述弹簧位于所述第一管体中，所述弹簧的一端部抵靠在所述柱塞或所述缸体上，所述弹簧的另一端部抵靠在所述第一管体上。
  5. 根据权利要求4所述的防烫模块，其特征在于，所述第一管体内部靠近所述出水口的位置设置有限位板，所述弹簧的另一端部抵靠在所述限位板上。
  6. 根据权利要求4所述的防烫模块，其特征在于，所述缸体上设置有朝向所述出水口方向延伸的导向柱，所述弹簧套在所述导向柱上。
  7. 根据权利要求3所述的防烫模块，其特征在于，所述弹性复位部件为弹片，所述弹片位于所述第一管体中，所述弹片的一端部抵靠在所述柱塞或所述缸体上，所述弹片的另一端部抵靠在所述第一管体上。
  8. 根据权利要求1所述的防烫模块，其特征在于，所述密封堵头上设置有第一挡圈， 所述柱塞的一端面设置有第二挡圈，所述第二挡圈围绕在所述贯通孔的外部；在所述第一挡圈与所述第二挡圈抵靠在一起后，所述第一挡圈的边缘与所述第二挡圈的边缘相互配合以形成密封阻水面。
  9. 根据权利要求8所述的防烫模块，其特征在于，所述第一管体中设置有台阶面，所述台阶面位于所述出水口和所述第一进水口之间；所述柱塞的一端面设置有第三挡圈，所述第三挡圈与所述台阶面之间形成流水间隔。
  10. 一种电热水器，包括水箱，所述水箱具有进水管和出水管，所述进水管上设置有三通，其特征在于，还包括如权利要求1-9任一项所述的防烫模块；所述防烫模块的第二管体与所述出水管连接，所述防烫模块的第三管体通过连接水管与所述三通连接。
PCT/CN2021/095534 2020-06-29 2021-05-24 防烫模块及电热水器 WO2021223771A1 (zh)

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