CN205388383U - Electric water heater and thermal cut -out of multi -point temperature measurement , quick temperature sensing thereof - Google Patents
Electric water heater and thermal cut -out of multi -point temperature measurement , quick temperature sensing thereof Download PDFInfo
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Abstract
本实用新型涉及家用和类似用途电热水器的超温保护元件领域，尤其涉及一种电热水器及其多点测温、快速感温的热断路器，包括手动复位按钮，电触点，控制断开或接通电触点的脱钩连杆和弹簧A，衔铁连杆，控制衔铁连杆的电磁线圈和弹簧B，多个（≥2）测量温度的自复位温敏开关，用于支撑连杆和弹簧的支撑部件，连接自复位温敏开关的绝缘导线等。本实用新型能较好解决双金属片膨胀式热断路器及毛细管液体膨胀式热断路器测温点单一、感温速度慢的问题。
The utility model relates to the field of over-temperature protection components for household and similar electric water heaters, in particular to an electric water heater and a thermal circuit breaker for multi-point temperature measurement and rapid temperature sensing, including a manual reset button, an electric contact, and a control disconnection Or uncoupling link and spring A for connecting electrical contacts, armature link, electromagnetic coil and spring B for controlling armature link, multiple (≥2) self-resetting temperature-sensitive switches for measuring temperature, for supporting link and The supporting part of the spring, the insulated wire connecting the self-resetting temperature sensitive switch, etc. The utility model can better solve the problems of single temperature measuring point and slow temperature sensing speed of the bimetal sheet expansion thermal circuit breaker and the capillary liquid expansion thermal circuit breaker.
Description
技术领域 technical field
本发明涉及家用和类似用途电热水器的超温保护元件领域，尤其涉及一种电热水器及其多点测温、快速感温的热断路器，适用于具有多电热元件的大功率电热水器、具有多电热元件的多功能电热水器，能够手动复位、全极断开。 The present invention relates to the field of over-temperature protection elements for household and similar electric water heaters, in particular to an electric water heater and a thermal circuit breaker for multi-point temperature measurement and rapid temperature sensing thereof, which is suitable for high-power electric water heaters with multiple electric heating elements, with A multifunctional electric water heater with multiple electric heating elements can be manually reset and all poles disconnected.
背景技术 Background technique
GB4706.12-2006《家用和类似用途电器的安全储水式热水器的特殊要求》中，第22.105条要求：密闭式热水器应装有提供全极断开的热断路器并且其动作独立于控温器动作；第24.101条要求热断路器应是非自复位的：具有自动跳闸机构或其安置应使得仅在拆去不可拆的盖子后才能复位；第19.2条和第19.3条要求器具在温控器失效情况下，分别以0.85倍功率和1.24倍功率在无水状态下工作，试验期间，器具不应有泄漏，不应喷射出火焰、熔融金属，达到危险量的有毒性或可点燃的气体；器具防护等级不应受到破坏，器具充水保持24小时后应能通过要求的电气强度试验。对密闭式热水器的这些安全要求，主要依赖于热断路器的保护。 In GB4706.12-2006 "Special Requirements for Safe Water Storage Water Heaters for Household and Similar Electrical Appliances", Article 22.105 requires that closed water heaters should be equipped with a thermal circuit breaker that provides all-pole disconnection and its action is independent of temperature control Subclause 24.101 requires thermal cut-outs to be non-self-resetting: to have an automatic tripping mechanism or to be so located that they can be reset only by removing a non-removable cover; In the case of failure, work at 0.85 times power and 1.24 times power respectively in an anhydrous state. During the test, the appliance should not leak, and should not eject flames, molten metal, or toxic or ignitable gases in dangerous quantities; The protection level of the appliance shall not be damaged, and the appliance shall pass the required electric strength test after being filled with water for 24 hours. These safety requirements for closed water heaters mainly rely on the protection of thermal circuit breakers.
目前密闭式电热水器常用的热断路器结构有：双金属片膨胀式热断路器、毛细管液体膨胀式热断路器。 At present, the commonly used thermal circuit breaker structures of closed electric water heaters are: bimetal expansion thermal circuit breaker, capillary liquid expansion thermal circuit breaker.
双金属片膨胀式非自复位热断路器结构特点为单测温点，表面贴装，因而无法通过测温盲管探入器具内部测温，只能紧贴器具外表面安装。而大功率电热水器、多功能电热水器往往由多支安装在不同部位的电热元件构成，在器具进行第19.2条和第19.3条的干烧试验时，贴在器具表面安装的热断路器不能及时和全面地感知水箱内部大功率电热元件因干烧产生的高温，因而不能及时切断电热元件的电源，导致危险情况的发生。 The structural feature of the bimetal expansion non-self-resetting thermal circuit breaker is a single temperature measurement point, surface mount, so it cannot be probed into the interior of the appliance to measure the temperature through a temperature measurement blind tube, and can only be installed close to the outer surface of the appliance. However, high-power electric water heaters and multi-functional electric water heaters are often composed of multiple electric heating elements installed in different parts. When the appliance is subjected to the dry-burning test of Article 19.2 and Article 19.3, the thermal circuit breaker attached to the surface of the appliance cannot be used in time. And comprehensively perceive the high temperature of the high-power electric heating element inside the water tank due to dry burning, so the power supply of the electric heating element cannot be cut off in time, resulting in dangerous situations.
毛细管液体膨胀式热断路器结构上也为单测温点，虽然可以通过测温盲管探入器具内部测温，但感温速度较慢，因而当用于大功率或多电热元件电热水器时，也不能及时和全面地感知水箱内部大功率电热元件因干烧产生的高温。 The capillary liquid expansion type thermal circuit breaker is also a single temperature measuring point in structure. Although it can be probed into the interior of the appliance to measure the temperature through the temperature measuring blind tube, the temperature sensing speed is relatively slow, so when used in high-power or multi-element electric water heaters , and cannot timely and comprehensively sense the high temperature generated by the high-power electric heating element inside the water tank due to dry burning.
发明内容 Contents of the invention
为弥补现有技术的不足，本发明提供了一种电热水器及其多点测温、快速感温的热断路器，特别适应于多加热元件和大功率电热水器，能较好解决双金属片膨胀式热断路器及毛细管液体膨胀式热断路器感温速度慢、测温点单一的问题。 In order to make up for the deficiencies of the prior art, the present invention provides an electric water heater and its thermal circuit breaker for multi-point temperature measurement and rapid temperature sensing, which is especially suitable for multi-heating elements and high-power electric water heaters, and can better solve the problem of bimetallic strips. Expansion type thermal circuit breaker and capillary liquid expansion type thermal circuit breaker have the problems of slow temperature sensing speed and single temperature measurement point.
本发明是通过如下技术方案实现的： The present invention is achieved through the following technical solutions:
本发明的电热水器用多点测温、快速感温的热断路器，其特征在于：包括手动复位按钮、电触点、脱钩连杆、弹簧A、衔铁连杆、电磁线圈、弹簧B、测量温度的自复位温敏开关，脱钩连杆和弹簧A控制电触点断开或接通，手动复位按钮1连接脱钩连杆2，脱钩连杆2连接电触点3，手动复位按钮下部安装在支撑部件10内，手动复位按钮下部连接弹簧A4，手动复位按钮还连接控制装置。 The electric water heater multi-point temperature measurement and rapid temperature sensing thermal circuit breaker of the present invention is characterized in that it includes a manual reset button, an electric contact, a decoupling connecting rod, a spring A, an armature connecting rod, an electromagnetic coil, a spring B, a measuring The self-resetting temperature sensitive switch of temperature, the decoupling connecting rod and spring A control the electric contact to be disconnected or connected, the manual reset button 1 is connected to the decoupling connecting rod 2, the decoupling connecting rod 2 is connected to the electric contact 3, and the lower part of the manual reset button is installed on In the supporting part 10, the lower part of the manual reset button is connected to the spring A4, and the manual reset button is also connected to the control device.
控制装置包括衔铁连杆6、电磁线圈7和自复位温敏开关，衔铁连杆6和电磁线圈7安装在支撑部件10上，电磁线圈控制衔铁连杆，衔铁连杆一端与脱钩连杆对应，另一端连接弹簧B5，电磁线圈与自复位温敏开关串联，电磁线圈和弹簧B一起控制衔铁连杆。 The control device includes an armature connecting rod 6, an electromagnetic coil 7 and a self-resetting temperature-sensitive switch. The armature connecting rod 6 and the electromagnetic coil 7 are installed on the support member 10. The electromagnetic coil controls the armature connecting rod. One end of the armature connecting rod corresponds to the decoupling connecting rod. The other end is connected to the spring B5, the electromagnetic coil is connected in series with the self-resetting temperature-sensitive switch, and the electromagnetic coil and the spring B together control the armature connecting rod.
自复位温敏开关包括相互并联的若干个，各个自复位温敏开关相互并联后，再串联电磁线圈，各个自复位温敏开关安装在电热水器内各个部位。 The self-resetting temperature-sensitive switch includes several parallel-connected ones, each self-resetting temperature-sensitive switch is connected in parallel, and then the electromagnetic coil is connected in series, and each self-resetting temperature-sensitive switch is installed in each position of the electric water heater.
脱钩连杆设有钩槽，衔铁连杆一端与脱钩连杆的钩槽对应。 The unhooking connecting rod is provided with a hook groove, and one end of the armature connecting rod corresponds to the hook groove of the unhooking connecting rod.
电触点连接在火线与零线之间，电磁线圈和自复位温敏开关连接后也连接在火线与零线之间，但不受电触点的控制。 The electric contact is connected between the live wire and the neutral wire, and the electromagnetic coil and the self-resetting temperature-sensitive switch are also connected between the live wire and the neutral wire after being connected, but are not controlled by the electric contact.
本发明的电热水器，其特征在于：采用本发明所述的多点测温、快速感温的热断路器。 The electric water heater of the present invention is characterized in that it adopts the multi-point temperature measuring and rapid temperature sensing thermal circuit breaker of the present invention.
本发明的电热水器用多点测温、快速感温的热断路器的控制方法，其特征在于：按下手动复位按钮，脱钩连杆移动使电触点闭合，同时压缩弹簧A；衔铁连杆被弹簧B推入脱钩连杆的钩槽内锁住闭合的电触点；连接绝缘导线的自复位温敏开关通过测温盲管安装到电热水器的水箱内部，快速感知电热元件附近的温度，测量温度的自复位温敏开关为单个或多个并联，因而能够测量多个电热元件附近的温度；当任意一个自复位温敏开关测量的温度超标时，自复位温敏开关快速闭合，电磁线圈得电，衔铁连杆受电磁力吸引移动而脱出脱钩连杆的钩槽，弹簧A推动脱钩连杆使电触点断开，从而断开电热水器电热元件的电源，实现超温保护。 The control method of the electric water heater with multi-point temperature measurement and rapid temperature sensing thermal circuit breaker of the present invention is characterized in that: the manual reset button is pressed, the decoupling connecting rod moves to close the electric contact, and the spring A is compressed at the same time; the armature connecting rod Pushed by the spring B into the hook groove of the decoupling link to lock the closed electrical contact; the self-resetting temperature-sensitive switch connected to the insulated wire is installed inside the water tank of the electric water heater through a temperature-measuring blind tube to quickly sense the temperature near the heating element. The self-resetting temperature-sensitive switch for measuring temperature is single or multiple in parallel, so it can measure the temperature near multiple heating elements; when the temperature measured by any self-resetting temperature-sensitive switch exceeds the standard, the self-resetting temperature-sensitive switch is quickly closed, and the electromagnetic coil When energized, the armature connecting rod is attracted by the electromagnetic force and moves out of the hook groove of the unhooking connecting rod, and the spring A pushes the unhooking connecting rod to disconnect the electrical contacts, thereby disconnecting the power supply of the heating element of the electric water heater and realizing over-temperature protection.
本发明的有益效果是，结构简单、使用方便，安全可靠，很好的解决双金属片膨胀式热断路器及毛细管液体膨胀式热断路器测温点单一、感温速度慢的问题。本发明的产品适用于具有多电热元件的大功率电热水器、具有多电热元件多功能电热水器，能够手动复位、全极断开。 The invention has the beneficial effects of simple structure, convenient use, safety and reliability, and well solves the problems of single temperature measuring point and slow temperature sensing speed of the bimetal expansion thermal circuit breaker and the capillary liquid expansion thermal circuit breaker. The product of the invention is suitable for high-power electric water heaters with multiple electric heating elements and multifunctional electric water heaters with multiple electric heating elements, and can be manually reset and all poles disconnected.
附图说明 Description of drawings
图1是本发明的结构示意图。 Fig. 1 is a structural schematic diagram of the present invention.
图中，1、手动复位按钮，2、脱钩连杆，3、电触点，4、弹簧A，5、弹簧B，6、衔铁连杆，7、电磁线圈，8、自复位温敏开关，9、自复位温敏开关，10、支撑部件，11、绝缘导线。 In the figure, 1. Manual reset button, 2. Decoupling connecting rod, 3. Electric contact, 4. Spring A, 5. Spring B, 6. Armature connecting rod, 7. Electromagnetic coil, 8. Self-resetting temperature sensitive switch, 9. Self-reset temperature-sensitive switch, 10. Support component, 11. Insulated wire.
具体实施方式 detailed description
附图为本发明的一种具体实施例。 Accompanying drawing is a kind of specific embodiment of the present invention.
本发明的电热水器用多点测温、快速感温的热断路器，包括手动复位按钮、电触点、脱钩连杆、弹簧A、衔铁连杆、电磁线圈、弹簧B、测量温度的自复位温敏开关，脱钩连杆和弹簧A控制电触点断开或接通，手动复位按钮1连接脱钩连杆2，脱钩连杆2连接电触点3，手动复位按钮下部安装在支撑部件10内，手动复位按钮下部连接弹簧A4，手动复位按钮还连接控制装置。 The electric water heater of the present invention uses a multi-point temperature measurement and rapid temperature sensing thermal circuit breaker, including a manual reset button, an electrical contact, a decoupling connecting rod, a spring A, an armature connecting rod, an electromagnetic coil, a spring B, and a self-resetting device for measuring temperature The temperature-sensitive switch, the unhook connecting rod and the spring A control the disconnection or connection of the electric contact, the manual reset button 1 is connected with the unhook connecting rod 2, the unhook connecting rod 2 is connected with the electric contact 3, and the lower part of the manual reset button is installed in the supporting part 10 , the lower part of the manual reset button is connected to the spring A4, and the manual reset button is also connected to the control device.
控制装置包括衔铁连杆6、电磁线圈7和自复位温敏开关，衔铁连杆6和电磁线圈7安装在支撑部件10上，电磁线圈控制衔铁连杆，衔铁连杆一端与脱钩连杆对应，另一端连接弹簧B5，电磁线圈与自复位温敏开关串联，电磁线圈和弹簧B一起控制衔铁连杆。 The control device includes an armature connecting rod 6, an electromagnetic coil 7 and a self-resetting temperature-sensitive switch. The armature connecting rod 6 and the electromagnetic coil 7 are installed on the support member 10. The electromagnetic coil controls the armature connecting rod. One end of the armature connecting rod corresponds to the decoupling connecting rod. The other end is connected to the spring B5, the electromagnetic coil is connected in series with the self-resetting temperature-sensitive switch, and the electromagnetic coil and the spring B together control the armature connecting rod.
自复位温敏开关包括相互并联的若干个，各个自复位温敏开关相互并联后，再串联电磁线圈，各个自复位温敏开关安装在电热水器内各个部位。 The self-resetting temperature-sensitive switch includes several parallel-connected ones, each self-resetting temperature-sensitive switch is connected in parallel, and then the electromagnetic coil is connected in series, and each self-resetting temperature-sensitive switch is installed in each position of the electric water heater.
脱钩连杆设有钩槽，衔铁连杆一端与脱钩连杆的钩槽对应。 The unhooking connecting rod is provided with a hook groove, and one end of the armature connecting rod corresponds to the hook groove of the unhooking connecting rod.
电触点连接在火线与零线之间，电磁线圈和自复位温敏开关连接后也连接在火线与零线之间，但不受电触点的控制。 The electric contact is connected between the live wire and the neutral wire, and the electromagnetic coil and the self-resetting temperature-sensitive switch are also connected between the live wire and the neutral wire after being connected, but are not controlled by the electric contact.
本发明的电热水器，采用本发明所述的多点测温、快速感温的热断路器。 The electric water heater of the present invention adopts the multi-point temperature measuring and rapid temperature sensing thermal circuit breaker of the present invention.
本发明的能多点测量、快速感温适应于多加热元件和大功率电热水器的热断路器，包括手动复位按钮，电触点，控制断开或接通电触点的脱钩连杆和弹簧A，衔铁连杆，控制衔铁连杆的电磁线圈和弹簧B，多个（≥2）测量温度的自复位温敏开关，用于支撑连杆和弹簧的支撑部件，连接自复位温敏开关的绝缘导线等。 The thermal circuit breaker capable of multi-point measurement and rapid temperature sensing of the present invention is suitable for multi-heating elements and high-power electric water heaters, including a manual reset button, an electrical contact, a decoupling link and a spring for controlling the disconnection or connection of the electrical contact A, armature connecting rod, electromagnetic coil and spring for controlling the armature connecting rod B, multiple (≥2) self-resetting temperature-sensitive switches for measuring temperature, supporting parts for supporting the connecting rod and spring, connecting the self-resetting temperature-sensitive switches Insulated wires, etc.
本发明的电热水器用多点测温、快速感温的热断路器的控制方法为，按下手动复位按钮，脱钩连杆移动使电触点闭合，同时压缩弹簧A；衔铁连杆被弹簧B推入脱钩连杆的钩槽内锁住闭合的电触点。连接绝缘导线的自复位温敏开关可通过测温盲管安装到电热水器的水箱内部，快速感知电热元件附近的温度，测量温度的自复位温敏开关可以有多个并联，因而可以测量多个电热元件附近的温度。当任意一个自复位温敏开关测量的温度超标时，自复位温敏开关快速闭合，电磁线圈得电，衔铁连杆受电磁力吸引移动而脱出脱钩连杆的钩槽，弹簧A推动脱钩连杆使电触点断开，从而断开电热水器电热元件的电源，实现超温保护。 The control method of the electric water heater with multi-point temperature measurement and rapid temperature sensing thermal circuit breaker of the present invention is as follows: press the manual reset button, the decoupling connecting rod moves to close the electric contact, and simultaneously compresses the spring A; the armature connecting rod is pressed by the spring B Push into the hook groove of the unhook link to lock the closed electrical contact. The self-resetting temperature-sensitive switch connected to the insulated wire can be installed inside the water tank of the electric water heater through a temperature-measuring blind tube to quickly sense the temperature near the heating element. The self-resetting temperature-sensitive switch for measuring temperature can have multiple parallel connections, so it can measure multiple The temperature near the heating element. When the temperature measured by any self-resetting temperature-sensitive switch exceeds the standard, the self-resetting temperature-sensitive switch is quickly closed, the electromagnetic coil is energized, the armature connecting rod is attracted by the electromagnetic force and moves out of the hook groove of the uncoupling connecting rod, and the spring A pushes the uncoupling connecting rod The electric contact is disconnected, thereby disconnecting the power supply of the heating element of the electric water heater, and realizing over-temperature protection.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605793A (en) * | 2016-02-17 | 2016-05-25 | 山东省计量科学研究院 | Multipoint temperature measuring and quick temperature sensing thermal circuit breaker for electric water heater |
| CN106128812A (en) * | 2016-08-23 | 2016-11-16 | 浙江旭瑞电子有限公司 | Electromagnetic type automatically resets travel switch |
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2016
- 2016-02-17 CN CN201620124200.2U patent/CN205388383U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605793A (en) * | 2016-02-17 | 2016-05-25 | 山东省计量科学研究院 | Multipoint temperature measuring and quick temperature sensing thermal circuit breaker for electric water heater |
| CN106128812A (en) * | 2016-08-23 | 2016-11-16 | 浙江旭瑞电子有限公司 | Electromagnetic type automatically resets travel switch |
| CN106128812B (en) * | 2016-08-23 | 2018-09-21 | 浙江旭瑞电子有限公司 | Electromagnetic type automatically resets travel switch |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160720 Termination date: 20180217 |