CN209877342U

CN209877342U - Electric water heater

Info

Publication number: CN209877342U
Application number: CN201920456898.1U
Authority: CN
Inventors: 陈诺
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-08-16
Filing date: 2019-04-08
Publication date: 2019-12-31
Anticipated expiration: 2029-04-08

Abstract

The utility model discloses an electric water heater, including the casing, install the inner bag in the casing, fix electric heating element, temperature sensor in the inner bag, and controller the both ends are equipped with left side water pipe and right side water pipe respectively about inner bag upper portion, are equipped with a pipe along the central line of inner bag, are equipped with the guide pin bushing that can control the removal on the pipe, are equipped with on the guide pin bushing to be used for separating the inner bag for the removal baffle of left and right side cavity, electric heating element is including setting up the ring shape heating pipe of the left and right sides at both ends middle part about the inner bag, the internal diameter of ring shape heating pipe of the left and right sides is greater than the external diameter of guide pin bushing, is equipped with the nearly switch of left end connection at the inner bag left. The utility model discloses an electric water heater, the hot water that has heated in the cold water of adding and the inner bag can not take place the mixing, and the hot water temperature of outflow is stable.

Description

Electric water heater

Technical Field

The utility model relates to an electric water heater with stable water temperature.

Background

In families, hot water is needed for bath and washing, and the electric water heater is widely applied as a clean, convenient and weather-proof domestic hot water acquisition electric appliance. The existing electric water heater mainly comprises a shell, an inner container arranged in the shell, an electric heating component fixed in the inner container, a temperature sensor, a control circuit and the like. The invention patent with the publication number of CN 104654596B, electric water heater, makes further improvement to the existing electric water heater in terms of safety performance. The invention patent CN 1122162C entitled adaptive energy-saving electric water heater is further improved in the aspects of electric energy saving and convenient use through intelligent control. However, in the existing electric water heater, the added cold water is mixed with the heated hot water in the inner container during the use of the hot water, so that the temperature of the flowing hot water is unstable.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an electric water heater, the cold water of adding can not take place the mixing with the hot water that has heated in the inner bag, and the hot water temperature that flows is stable.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an electric water heater comprises a shell, an inner container arranged in the shell, an electric heating component fixed in the inner container, a temperature sensor and a controller, wherein a left water pipe and a right water pipe are respectively arranged at the left end and the right end of the upper part of the inner container, a guide pipe is arranged along the central line of the inner container, a guide sleeve capable of moving left and right is arranged on the guide pipe, a moving partition plate used for dividing the inner container into a left cavity and a right cavity is arranged on the guide sleeve, the electric heating component comprises a left annular heating pipe and a right annular heating pipe which are arranged at the middle parts of the left end and the right end of the inner container, the inner diameter of the left annular heating pipe and the right annular heating pipe is larger than the outer diameter of the guide sleeve, a left end proximity switch is arranged at the left end of the inner container, a right end proximity switch is arranged at the right end of the, Connecting the right water pipe with a hot water outlet pipeline; when the guide sleeve moves to the right proximity switch, the controller connects the left water pipe with the hot water outlet pipe and connects the right water pipe with the cold water inlet pipe through the electric conversion valve according to the trigger signal of the right proximity switch.

The temperature sensor has at least two left end temperature sensors and two right end temperature sensors, the controller controls the on-off of the left annular heating pipe according to the preset numerical value of the left end temperature sensor, and the controller controls the on-off of the right annular heating pipe according to the preset numerical value of the right end temperature sensor.

The left end heating electric wire and the right end heating electric wire are arranged in the guide pipe, the controller controls the on-off of the left end heating electric wire according to a preset numerical value of the left end temperature sensor, and the controller controls the on-off of the right end heating electric wire according to a preset numerical value of the right end temperature sensor.

Compared with the prior art, the beneficial effects of the utility model are that: by adopting the technical scheme, the inner container is divided into the left cavity and the right cavity by the movable partition plate arranged on the guide sleeve, the left water pipe is connected with the hot water outlet pipeline by the electric change-over valve, and the right water pipe is connected with the cold water inlet pipeline, so that when hot water is used (namely a water outlet valve of the hot water outlet pipeline is opened, such as a hot water faucet connected with the hot water outlet pipeline), the cold water with high pressure entering the right cavity pushes and presses the movable partition plate to the left end, the hot water flows out of the left water pipe, and the cold water entering the right cavity cannot be mixed with the hot water in the left cavity due to the separation of the movable partition plate, so that the temperature of the hot water flowing out of the hot water outlet pipeline is kept stable; when the guide sleeve moves to the left end proximity switch, the left end proximity switch sends a trigger signal to the controller after detecting the guide sleeve, the controller connects the left side water pipe with the cold water inlet pipe and connects the right side water pipe with the hot water outlet pipe through the electric change-over valve according to the trigger signal, at this time, when hot water is used (namely, an outlet valve of the hot water outlet pipe is opened), the cold water with high pressure entering the left side cavity can push and press the movable partition plate to the right end, the hot water flows out from the right side water pipe, and due to the separation of the movable partition plate, the cold water entering the left side cavity cannot be mixed with the hot water in the right side cavity, so that the temperature of the hot water flowing out from the hot water outlet pipe is kept stable. When the guide sleeve touches the right proximity switch, the right proximity switch sends a trigger signal to the controller after detecting the guide sleeve, the controller connects the right water pipe with the cold water inlet pipeline and connects the left water pipe with the hot water outlet pipeline through the electric conversion valve according to the trigger signal, and the initial process is repeated.

The further beneficial effects are that: because both ends all are equipped with ring shape heating pipe and left ring shape heating pipe is located left side water pipe department, right ring shape heating pipe is located right side water pipe department about, the break-make of the ring shape heating pipe of the numerical control left side is predetermine according to left end temperature sensor to the controller, and the break-make of the ring shape heating pipe of the numerical control right side is predetermine according to right-hand member temperature sensor to the controller, and such setting is favorable to the independent heating of left and right side cavity, when one side cavity goes out hot water, the cavity alright in time start-up heating of cold water of opposite side, shortens and uses hydrothermal latency. Be equipped with left end heating electric wire and right-hand member heating electric wire in the pipe, the controller is according to the numerical control left end heating electric wire's of presetting of left end temperature sensor break-make, and the controller is according to the numerical control right-hand member heating electric wire's of presetting of right-hand member temperature sensor break-make, and this kind of structure can further exert the advantage of independent heating, further shortens to use hydrothermal latency.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the guide sleeve of FIG. 1 sliding to the left;

fig. 3 is a schematic perspective view of the movable partition in fig. 1.

Detailed Description

In order to make the technical solution of the present invention clearer, the following describes the present invention in detail with reference to fig. 1 to 3. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

The utility model relates to an electric water heater, including the casing, install inner bag 1 in the casing, fix electric heating element, temperature sensor in the inner bag, and controller the both ends are equipped with left side water pipe 2 and right side water pipe 3 respectively about inner bag 1 upper portion, are equipped with a pipe 4 along the central line of inner bag 1, are equipped with guide pin bushing 5 that can control the removal on pipe 4, are equipped with on guide pin bushing 5 to be used for separating inner bag 1 for the removal baffle 8 of left and right side cavity 6, 7, electric heating element is including setting up left and right ring shape heating pipe 9, 10 at inner bag 1 left and right sides both ends middle part, the internal diameter of left and right ring shape heating pipe 9, 10 is greater than guide pin bushing 5's external diameter, is equipped with the nearly switch 11 of left end at inner bag 1 left end, is equipped with right-hand member proximity switch 12 at inner bag 1 right-hand member, when guide pin bushing 5 removes to the nearly switch 11 of left end, the controller will through electric change-over valve 16 A cold water inlet pipeline 14 is connected, and the right water pipe 3 is connected with a hot water outlet pipeline 15; when the guide sleeve 5 moves to the right proximity switch 12, the controller connects the left water pipe 2 to the hot water outlet pipe and connects the right water pipe 3 to the cold water inlet pipe through the electric conversion valve 16 according to the trigger signal of the right proximity switch 12. The left and right end proximity switches are preferably Hall proximity switches, and when the Hall proximity switches are adopted, magnetic rings for triggering the Hall proximity switches need to be arranged at two ends of the guide sleeve.

Preferably, the temperature sensor has at least two left end temperature sensors and two right end temperature sensors, the controller controls the on-off of the left annular heating pipe 9 according to a preset value of the left end temperature sensor, and the controller controls the on-off of the right annular heating pipe 10 according to a preset value of the right end temperature sensor. The left end heating electric wire 91 and the right end heating electric wire 101 are arranged in the conduit 4, the controller controls the on-off of the left end heating electric wire 91 according to the preset numerical value of the left end temperature sensor, and the controller controls the on-off of the right end heating electric wire 101 according to the preset numerical value of the right end temperature sensor.

When the electric water heater is used for the first time, the inner container 1 needs to be filled with water first and then a power switch of the electric water heater is turned on. The water adding step is as follows:

the electric change-over valve 16 has only two states, assuming that the valve core is in the state shown in fig. 1, at this time, the valve on the hot water outlet pipe 15 (for example, a hot water faucet connected to the hot water outlet pipe 15) is opened, cold water (tap water) flows into the inner container 1 from the left water pipe 2, and the movable partition 8 is pushed to the right, so that air in the right chamber 7 is discharged from the hot water outlet pipe 15 through the right water pipe 3, because a gap (the smaller the gap is, the better the gap is, but it is ensured that the movable partition 8 can move flexibly, for example, about 0.5 mm), air and cold water in the left chamber 6 also slowly enter the right chamber 7, when water flows out from the hot water outlet pipe 15, water is filled, the valve on the hot water outlet pipe 15 is closed, and the water adding step is completed, so that the power switch can be opened. If the spool of the electric switch valve 16 is in another initial state, the water adding step is the same, and will not be described again.

Claims

1. The utility model provides an electric water heater, includes the casing, installs inner bag (1) in the casing, fixes electric heating element, temperature sensor in the inner bag, and the controller both ends are equipped with left side water pipe (2) and right side water pipe (3), its characterized in that respectively about inner bag (1) upper portion: a guide pipe (4) is arranged along the central line of the inner container (1), a guide sleeve (5) capable of moving left and right is arranged on the guide pipe (4), a movable partition plate (8) used for dividing the inner container (1) into a left cavity and a right cavity (6 and 7) is arranged on the guide sleeve (5), the electric heating component comprises a left annular heating pipe and a right annular heating pipe (9 and 10) arranged in the middle of the left end and the right end of the inner container (1), the inner diameters of the left annular heating pipe and the right annular heating pipe (9 and 10) are larger than the outer diameter of the guide sleeve (5), a left end proximity switch (11) is arranged at the left end of the inner container (1), a right end proximity switch (12) is arranged at the right end of the inner container (1), and when the guide sleeve (5) moves to the left end proximity switch (11), the controller connects the left water pipe (2) with a cold water inlet pipeline (14) and a cold water inlet pipeline (14, The right water pipe (3) is communicated with a hot water outlet pipeline (15); when the guide sleeve (5) moves to the right proximity switch (12), the controller connects the left water pipe (2) with a hot water outlet pipeline and connects the right water pipe (3) with a cold water inlet pipeline through an electric conversion valve (16) according to a trigger signal of the right proximity switch (12).

2. The electric water heater of claim 1, wherein: the temperature sensor is provided with at least two left end temperature sensors and two right end temperature sensors, the controller controls the on-off of the left annular heating pipe (9) according to the preset value of the left end temperature sensor, and the controller controls the on-off of the right annular heating pipe (10) according to the preset value of the right end temperature sensor.

3. The electric water heater of claim 2, wherein: the device is characterized in that a left end heating electric wire (91) and a right end heating electric wire (101) are arranged in the conduit (4), the controller controls the on-off of the left end heating electric wire (91) according to the preset numerical value of the left end temperature sensor, and the controller controls the on-off of the right end heating electric wire (101) according to the preset numerical value of the right end temperature sensor.