TWM595743U - Safety protection base for electric water heater - Google Patents

Abstract

This creation relates to an electric water heater safety protection seat, which mainly includes an insulation seat made of insulating material, the insulation seat has a continuous water channel, the two ends of the water channel are respectively provided with a pipeline connection mechanism, and the insulation seat is provided in Between the hot water outlet pipe and the hot water outlet pipe of the external electric water heater, the pipeline connection mechanisms at the two ends of the water channel are respectively connected to the opposite pipelines. When the electric water heater leaks, it has the ability to block the leakage current inside the electric water heater. effect.

Description

Safety protection seat for electric water heater

This creation relates to an electric water heater safety protection seat, which belongs to the technical field of electric water heaters. When the electric water heater leaks electricity, it has the effect of blocking the leakage current inside the electric water heater.

According to this, electric water heaters have gradually become the mainstream of water heaters due to the advantages of avoiding carbon monoxide poisoning compared with traditional gas water heaters. However, there are occasional accidents in which electric water heaters are used to induce electricity, so it is necessary to strengthen the electric water heater leakage protection structure.

Generally, in order to avoid the electric accident caused by the leakage of the electric water heater, the electric water heater is equipped with a leakage circuit breaker to cut off the power supply when the leakage current is abnormal, and the power supply must be turned on again after the cause of the fault is eliminated to ensure that the leakage is indeed achieved. Protection purpose.

China Patent Announcement No. 319377 discloses an electric water heater safety protection device (referenced on November 01, 1997 patent publication data), which is mainly composed of a heater, a segment switch and a water valve switch, etc., where the heater end is connected to the input power end , The other end is connected to the other end of the input power supply via a segment switch and a water valve switch, characterized in that: a safety switch and a temperature sensor are provided between the input power supply, the heater and the water valve switch; the safety switch includes an excitation coil, two A set of mechanical switch contacts, of which two sets of mechanical switch contacts are respectively connected to the power supply end and the heating point, and one end of the excitation coil is connected to the power supply, and the other end is connected to the other end of the power supply through a temperature sensor. It can be seen from the instructions and drawings of the previous case that the safety switch of the previous case is a general-purpose leakage circuit breaker. The previous case is to directly connect the temperature sensor in the circuit of the leakage circuit breaker, so that although the temperature can be abnormal When the power supply is cut off, and the cause of the fault is eliminated, the heater must be switched on again. However, the leakage circuit breaker is a legally subject inspection product, and a temperature sensor is connected to the drilling hole of the leakage circuit breaker. The temperature sensor uses the electronic circuit inside the original leakage circuit breaker to generate functions, which may cause the failure of the leakage circuit breaker. There is also a risk of changing the original design specifications of the leakage circuit breaker and requiring re-inspection. In addition, if the leakage circuit breaker fails, the power supply cannot be cut off, and the leakage current will be conducted by the electric water heater through the hot water pipeline or the water inlet pipeline (generally the hot water pipeline and the water inlet pipeline are buried metal pipes of the original building) , And cause an electric shock accident, which is missing.

Furthermore, Chinese Patent Announcement No. M452325 discloses a leakage detection device for electric water heaters (refer to the patent announcement data on May 1, 2013), which is installed in the body of the electric water heater and includes: several relays; a terminal block, It is provided with several terminals; two power input pole pieces are arranged between the terminal block and the relays, one end of the two power input pole pieces is connected to corresponding terminals on the terminal block, and the other end of the two power input pole pieces It is connected to the corresponding relay; a support frame, which has a spacing portion, which separates the two power input pole pieces; and a zero-phase current comparator, which is sleeved outside the two power input pole pieces. Chinese Patent Announcement No. M575513 discloses the structure of an electric water heater (referenced on March 11, 2019 patent announcement data), its main structure includes a housing with a first space, a second space, and a first cover Body, a second cover, and at least one perforation, a control water inlet assembly, a water storage tank, and a heating device are provided in the first space, and a terminal located at the junction of the first space and the second space is also provided in the housing Seat, inlet pipe fittings, and outlet pipe fittings. With the above structure, the water inlet pipe and the water outlet pipe can allow water to enter and exit between the first space and the second space. The wiring in the first space can be connected to the terminal block, so the connection points for connecting the external power supply and the water pipe are located at the first In the second space, if there is a water and electricity leakage situation, it will not affect the internal parts. When installing the electric wires and water pipes, you only need to open the second cover to install the water pipes and lines to achieve the effect of convenience, safety and beauty. China Patent Announcement No. M478120 discloses an improvement of an electric water heater (refer to the patent announcement data on May 11, 2014). The electric water heater is provided with at least: a water storage tank with a storage chamber for storing water. Water pipe, outlet pipe, heating outlet pipe and heating inlet pipe, and the inlet pipe is equipped with a solenoid valve; then, the water storage tank is equipped with a first sensor for monitoring the water level of the chamber and a second sensor for monitoring the water temperature of the chamber A heating unit with a pump connected to the heating water outlet pipe, the pump is provided with a pressurized water outlet, and the pump can pressurize the water from the pressurized water outlet into a nano heating pipe that can isolate the power source from contacting the water Group, and then, the nano heating tube group is connected with the heating water inlet tube that returns the heated water into the chamber; a control element, built-in to interpret the signals of the first sensor and the second sensor, and drive according to the signal And close the control parameters of the nano heating tube group and the solenoid valve. However, in the previous cases, the anti-leakage structure is either located inside the electric water heater, or has a complicated structure and poor heating efficiency, and a new machine must be purchased, which cannot be used in the old electric water heater device. This lack is the industry. Urgent problems to be overcome.

In view of the lack of the above-mentioned conventional technology, the creator of this creation has accumulated many years of practical expertise in the design and manufacture of electric water heaters. After continuous research and improvement, the successful research and creation of this creation has finally been made public.

The reason is that the main purpose of this creation is to provide an "electric water heater safety protection seat", which mainly includes an insulation seat made of insulating material, the insulation seat has a continuous water channel, and the two ends of the water channel are respectively connected by pipes Mechanism, the aforementioned insulating seat is provided between the hot water outlet pipe of the electric water heater and the hot water outlet pipe outside the electric water heater, and the pipeline connection mechanism at the two ends of the water channel respectively connects the hot water outlet end of the electric water heater and the hot water outlet pipe. When the electric water heater leaks, the leakage current will be blocked by the insulating seat inside the electric water heater.

The aforementioned insulating base is provided between the cold water inlet end of the electric water heater and the cold water pipe outside the electric water heater, and the pipeline connection mechanism at the two ends of the water channel respectively connects the cold water inlet pipe and the cold water pipe of the electric water heater.

The above-mentioned insulation base of this work is composed of straight ends of the head and tail of the water channel, and is installed in a place where space is not limited.

In this work, the aforementioned insulation base is constructed with appropriate angles at the head and tail ends of the water channel to install it in a space-constrained place.

In order to achieve the technical means of creating the aforementioned purpose, here is an example, and with the help of the schematic description as follows, your reviewer can gain a better understanding of the structure, features and effects of the creation.

The present invention is a safety protection seat for electric water heaters. The electric water heaters include, but are not limited to, instantaneous-type electric water heaters, storage-type electric water heaters, drinking fountains and water heater equipment.

First of all, please refer to the perspective view of the first embodiment of the insulating base shown in FIG. 1, this creation mainly includes an insulating base (1) made of insulating material, the insulating base (1) has a continuous water channel (10) , The two ends of the water channel (10) are respectively provided with a pipe connection mechanism (11). In this embodiment, the connection mechanism (11) is to match the internal or external threads of the pipeline to be connected, and may also be a nut "Cooperate with the link", please refer to figure 3 again, the aforementioned insulating seat (1) is a hot water outlet pipe (20) and a hot water outlet pipe (3) of the electric energy water heater (2) outside the electric water heater (2) The water pipe (3) is the original hot water pipe of the installation site, and the pipe connection mechanism (11) at the two ends of the water channel (10) is respectively connected to the hot water outlet pipe (20) of the electric energy water heater and the hot water outlet pipe ( 3), when the heating element of the electric water heater (2) is damaged and leaks, and the electric water heater (2) leakage circuit breaker fails again, the leakage current will be blocked by the insulating seat (1) inside and outside the electric water heater (2) The water resistance of the water in the water pipe (3) can effectively eliminate the residual current. "Please refer to Figure 5. The hot water outlet pipe (3) generally refers to the old metal pipeline in the building, most of which are buried. In the wall (as shown in the diagonal part of the figure), then connect to each space (such as kitchen, bathroom, etc. need to use hot water space), and connect a water outlet device (5) (such as faucet, lotus head, etc.) for supply "Use" to ensure the safety of users. This is because pure water itself is a non-conductor, and fresh water (ie domestic tap water) itself is not a good conductor, so the resistance of the water in the hot water outlet pipe (3) can limit the cause. The leakage current caused by the damage of the heating element causes human body induction. This can be proved by the basic electrical formula I(current)=V(voltage)/R(resistance), which proves that the current will decrease when the resistance value increases. (1) Limit the leakage current in the electric energy water heater, and the water flowing out of the pipeline can be used to limit the leakage current caused by the damage of the heating element by the hot water outlet pipe (3) the water resistance in the pipeline, so that the leakage can be cut off A layer of safety protection device is added outside the device to ensure double protection against electric shock. In addition, this creative insulation base (1) is installed outside the electric water heater (2). Except that there will be no changes to the internal design of the electric water heater (2) and there is no risk of re-examination, the old electric energy Water heaters can be easily installed and used.

The aforementioned insulation base (1) of this work is located between the cold water inlet pipe (21) and the cold water pipe (4) of the electric water heater (2) outside the electric water heater (2) "The cold water pipe (4) is the cold water pipe originally installed in the installation site." The cold water inlet pipe (21) and the cold water pipe (4) of the electric water heater are respectively connected by the pipeline connecting mechanisms (11) at the two ends of the water channel (10). When the heating element of the electric water heater (2) is damaged and the electric leakage occurs, and the electric leakage heater (2) leakage circuit breaker fails again, the electric leakage current will be blocked by the insulating seat (1) inside and outside the electric water heater (2) and the cold water pipe (4) The water resistance of the water itself can effectively eliminate the residual current. "Please refer to Figure 5. The cold water pipe (4) generally refers to the old metal pipe of the building, which is mostly buried in the wall (as shown in the figure Diagonal line), and connected to the water tower (6), providing cold water use", to ensure the safety of users, this is because pure water itself is a non-conductor, and fresh water (ie domestic tap water) itself is not a good conductor, so cold water The water resistance in the pipe (4) can limit the leakage current caused by the damage of the heating element, causing human body induction. This can be proved by the basic electrical formula I (current) = V (voltage) / R (resistance), which proves that the resistance value increases The current will be reduced, that is, this creation uses the insulation seat (1) to limit the leakage current in the electric water heater, and the water flowing out of the pipeline can be limited by the water resistance in the cold water pipe (4). The leakage current generated by the damage of the component can be added with a layer of safety protection device in addition to the leakage circuit breaker, which is a double guarantee to avoid causing electric shock to the human body. In addition, this creative insulation base (1) is installed outside the electric water heater (2). Except that there will be no changes to the internal design of the electric water heater (2) and there is no risk of re-examination, the old electric energy Water heaters can be easily installed and used.

Please refer to Figures 1 and 3 again. In the original insulation base (1), the head and the tail of the water channel (10) are straight-through to be installed in places where space is not limited.

Please refer to Figures 2 and 4 for the above-mentioned insulation base (1), the head and the tail of the water channel (10) are formed at an appropriate angle to install in a space-constrained place.

The purpose of creating and designing in this way is a practical creation.

In summary, a kind of "electric water heater safety protection seat" disclosed in this creation is unprecedented, and it has not been seen in public publications at home and abroad. It has already had novel patent requirements, and this creation can indeed eliminate conventional technology. If it is missing and the design purpose is achieved, it has fully met the patent requirements. You have filed an application in accordance with the law. I would like to ask your reviewer to give me the examination and grant the patent in this case.

However, the above is only one of the preferred and feasible embodiments of this creation, and is not intended to limit the scope of this creation. It refers to the equivalent structural changes made by those who are familiar with this skill, using this creation specification and applying for patent scope , Should be included in the scope of the patent of this creation.

(1): Insulation seat (10): Waterway (11): Linking organization (2): Electric water heater (20): Hot water outlet pipe of electric water heater (21): Cold water inlet pipe of electric water heater (3): Hot water outlet pipe (4): Cold water pipe (5): Water supply device (6): Water tower

Figure 1 is a perspective view of the insulating base of the first embodiment of this creation;

Figure 2 is a perspective view of an insulating base of the second embodiment of the present creation

Figure 3 is a schematic diagram of the first embodiment of the device;

Figure 4 is a schematic diagram of the device of the second embodiment of the present creation;

Figure 5 is a schematic diagram of building piping configuration in the first embodiment of the present creation.

(1): Insulation seat

(2): Electric water heater

(20): Hot water outlet pipe of electric water heater

(21): Cold water inlet pipe of electric water heater

(3): Hot water outlet pipe

(4): Cold water pipe

Claims (4)

A safety protection seat for electric water heater mainly includes an insulating seat made of insulating material, the insulating seat has a continuous water channel, the two ends of the water channel are respectively provided with a pipeline connection mechanism, and the aforementioned insulating seat is provided outside the electric water heater Between the hot water outlet pipe of the electric energy water heater and the hot water outlet pipe, the pipeline connection mechanism at the two ends of the water channel is respectively connected to the hot water outlet end of the electric water heater and the hot water outlet pipe. The safety protection seat for electric water heater according to claim 1, wherein the insulating seat is provided between the cold water inlet end of the electric water heater and the cold water pipe outside the electric water heater, and the opposite electric water heaters are respectively connected by the pipeline connection mechanisms at the two ends of the water channel Cold water inlet pipe and cold water pipe. The safety protection seat for an electric water heater as described in claim 1 or claim 2, wherein the insulation seat is formed through the head and tail ends of the water channel. The safety protection seat for an electric water heater as described in claim 1 or claim 2, wherein the insulation seat is formed with appropriate angles at the head and tail ends of the water channel.

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