Electric water heater with display screen compatible with vertical and horizontal display

Abstract

The utility model discloses an electric water heater with a display screen compatible with vertical and horizontal display, which comprises a water heater body and a control system, and the control system comprises a main control board, the display screen and a display circuit; the display circuit comprises a switching circuit, a filter circuit and a main control chip U1; the output end OP of the switching circuit is connected with the main control chip U1; and the main control chip U1 is connected with a display screen. According to the utility model, through the design of the switching circuit, different signals can be output according to different placement angles of the electric water heater, and the display screen is controlled by the main control chip to realize vertical or horizontal display, so that the same display screen can be simultaneously suitable for the vertical and horizontal electric water heaters; the problem that display screens of a vertical electric water heater and a horizontal electric water heater need to be designed and produced separately is solved, and the production and design cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electric water heaters, in particular to an electric water heater with a display screen compatible with vertical and horizontal displays. Background Art

[0002] Electric water heaters are common household appliances. They generally come in two types: vertical and horizontal. Users can choose the appropriate type based on their household needs. Manufacturers, however, do not differ fundamentally in the internal structure and functionality of the two types; the only difference is the orientation of the electronic display. Consequently, manufacturers must produce separate displays for both vertical and horizontal models for the same model, creating significant production inconvenience. Utility Model Content

[0003] The purpose of the utility model is to provide an electric water heater with a display screen compatible with vertical and horizontal displays, so as to solve the problem that the display screens of vertical and horizontal electric water heaters need to be designed and produced separately, thereby overcoming the shortcomings of the prior art.

[0004] The utility model provides an electric water heater with a display screen compatible with vertical and horizontal displays through the following technical solutions, including a water heater body and a control system, characterized in that the control system includes a main control board and a display circuit; the display circuit includes a switching circuit, a filtering circuit, a main control chip U1 and a display screen; the display circuit includes a switching circuit, a filtering circuit and a main control chip U1; the switching circuit includes a photoelectric switch U2, a first resistor R22, a second resistor R23, a third resistor R21, and a first capacitor C2; one end of the second resistor R23 is connected to a voltage input, and the other end is connected to the third resistor R21; the photoelectric switch U2 includes a first pin, a second pin, a third pin, and a fourth pin, the first pin is connected to the first resistor R22, the first resistor R22 is connected to the voltage input, the second pin is grounded, the third pin is connected to the common end of the second resistor R23 and the third resistor R21, and the fourth pin is grounded; the third resistor R21 is connected to the output end OP; the output end OP of the switching circuit is connected to the main control chip U1; the main control chip U1 is connected to the display screen.

[0005] Furthermore, the main control chip U1 is connected to the filter circuit.

[0006] Furthermore, the filtering circuit includes a filtering capacitor EC1, a second capacitor C1, and a third capacitor C32.

[0007] Furthermore, the third pin and the fourth pin of the photoelectric switch U2 are connected in parallel to the first capacitor C2.

[0008] Furthermore, the photoelectric switch is welded on the main control board and includes a light emitting diode and a photosensitive device. The light path from the light emitting diode to the photosensitive device is in an open or closed state according to the placement angle of the photoelectric switch.

[0009] The utility model has the following beneficial effects: the utility model provides an electric water heater with a display screen that is compatible with vertical and horizontal displays. Through the design of the switching circuit, different signals are output according to the different placement angles of the electric water heater. The display screen is controlled by the main control chip to realize vertical or horizontal display, so that the same display screen can be suitable for both vertical and horizontal electric water heaters, solving the problem that the display screens of vertical and horizontal electric water heaters need to be designed and produced separately, and reducing the production design cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is an overall schematic diagram of an electric water heater with a display screen compatible with vertical and horizontal displays as described in the present utility model.

[0011] Figure 2 This is a structural block diagram of the display circuit of an electric water heater with a display screen compatible with vertical and horizontal displays as described in the utility model.

[0012] Figure 3 This is a structural principle diagram of the switch circuit of an electric water heater with a display screen compatible with vertical and horizontal displays as described in the utility model.

[0013] Figure 4 This is a structural principle diagram of the filter circuit of an electric water heater with a display screen compatible with vertical and horizontal displays as described in the utility model.

[0014] in, Figures 1 to 4 The corresponding relationship between the reference numerals and component names is as follows:

[0015] 1 Water heater body, 2 Main control board, 3 Display screen. DETAILED DESCRIPTION

[0016] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0017] The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application.

[0018] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0019] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0021] Refer to the following Figure 1-Figure 4 An electric water heater having a display screen compatible with vertical and horizontal displays according to some embodiments of the present application is described.

[0022] An electric water heater with a display screen compatible with both vertical and horizontal displays comprises a water heater body 1 and a control system; the control system comprises a main control board 2 and a display circuit; the display circuit comprises a switching circuit, a filtering circuit, a main control chip U1, and a display screen 3; the switching circuit comprises a photoelectric switch U2, a first resistor R22, a second resistor R23, a third resistor R21, and a first capacitor C2; one end of the second resistor R23 is connected to a voltage input, and the other end is connected to the third resistor R21. The photoelectric switch is a photoelectric tilt switch, specifically model BL1250, which is soldered to the main control board 2. The photoelectric switch internally comprises a light-emitting diode and a photosensor, with first and second pins extending from the light-emitting diode, and third and fourth pins extending from the photosensor. The first pin is connected to the first resistor R22, which is connected to the voltage input; the second pin is grounded; the third pin is connected to the common terminal of the second resistor R23 and the third resistor R21; the third resistor R21 is connected to the output terminal OP; the fourth pin is grounded; and the third and fourth pins are connected in parallel to the first capacitor C2.

[0023] In the switch circuit, the light-emitting diode (LED) is always in the on state, emitting light. Depending on the placement angle of the photoelectric switch, the light path from the LED to the photosensitive device is either unblocked or blocked. Specifically, by appropriately setting the welding orientation of the photoelectric switch, when the electric water heater is placed horizontally (or vertically), the light path is unblocked, thereby reducing the voltage drop across the third resistor R21 and causing the output terminal OP to output a low level. When the electric water heater is placed vertically (or horizontally), the light path is blocked, thereby increasing the voltage drop across the third resistor R21 and causing the output terminal OP to output a high level. The output terminal OP is connected to the main control chip U1, so that the information about whether the electric water heater is placed horizontally or vertically can be converted into an electrical signal and input into the main control chip U1. A corresponding program is set in the main control chip U1 so that the main control chip U1 can output corresponding instructions to the display screen 3 based on the input electrical signals. Specifically, when the electric water heater is placed horizontally, the display screen 3 realizes a horizontal display, and when the electric water heater is placed vertically, the display screen 3 realizes a vertical display.

[0024] In addition, the main control chip U1 is also connected to a filter circuit, which includes a filter capacitor EC1, a second capacitor C1, and a third capacitor C32, and converts AC input into DC to provide the voltage required for the main control chip U1 to work normally.

[0025] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric water heater with a display screen compatible with vertical and horizontal displays, comprising a water heater body and a control system, characterized in that: The control system includes a main control board and a display circuit; the display circuit includes a switching circuit, a filtering circuit, a main control chip U1 and a display screen; the switching circuit includes a photoelectric switch U2, a first resistor R22, a second resistor R23, a third resistor R21, and a first capacitor C2; one end of the second resistor R23 is connected to a voltage input, and the other end is connected to the third resistor R21; the photoelectric switch U2 includes a first pin, a second pin, a third pin, and a fourth pin, the first pin is connected to the first resistor R22, the first resistor R22 is connected to a voltage input, the second pin is grounded, the third pin is connected to the common terminal of the second resistor R23 and the third resistor R21, and the fourth pin is grounded; the third resistor R21 is connected to the output terminal OP; the output terminal OP of the switching circuit is connected to the main control chip U1; the main control chip U1 is connected to the display screen.

2. The electric water heater with a display screen compatible with vertical and horizontal displays according to claim 1, characterized in that: The main control chip U1 is connected to the filter circuit.

3. The electric water heater with a display screen compatible with vertical and horizontal displays according to claim 2, characterized in that: The filter circuit includes a filter capacitor EC1, a second capacitor C1, and a third capacitor C32.

4. The electric water heater with a display screen compatible with vertical and horizontal displays according to claim 1, characterized in that: The third pin and the fourth pin of the photoelectric switch U2 are connected in parallel to the first capacitor C2.

5. The electric water heater with a display screen compatible with vertical and horizontal displays according to claim 1, characterized in that: The photoelectric switch is welded on the main control board and includes a light emitting diode and a photosensitive device. The light path from the light emitting diode to the photosensitive device is in an open or closed state according to the placement angle of the photoelectric switch.

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