Backlight screen for intelligent electric meter

Abstract

The utility model provides a backlight screen for an intelligent electric meter, which comprises a backlight screen main body, a heat dissipation mechanism arranged on the outer wall of the backlight screen main body, an automatic lightening mechanism arranged on the back surface of the heat dissipation mechanism, the automatic lightening mechanism comprises a back frame, a backlight source main body fixedly mounted on the inner wall of the back frame, and a raised frame fixedly mounted on the top of the back frame, a controller body is fixedly installed on the inner wall of the protruding frame, and a human body infrared sensor located on the right side of the controller body is fixedly installed on the inner wall of the protruding frame. Through the design of the human body infrared sensor, the human body infrared sensor can detect the existence of a human body based on the principles of infrared radiation and pyroelectric effect, immediately feeds back the change generated when the human body approaches to the controller main body through an electric signal, and then the controller main body controls the backlight source main body to work, so that the function of automatically lightening when the human body approaches is realized; the problem that manual lightening is relatively inconvenient in a dark environment is avoided, and the efficiency of overhauling the electric meter by a user is improved.

Description

Technical Field

[0001] The utility model relates to a backlight screen for an intelligent electric meter, belonging to the technical field of intelligent electric meter accessories. Background Technique

[0002] An intelligent electric meter is one of the basic devices for data collection in an intelligent power grid, and has the functions of collecting, measuring, and transmitting original electric energy data. It not only has the basic measurement function of a traditional electric energy meter, but also has a variety of intelligent features, such as two-way multi-rate metering, user-side control, two-way data communication, and anti-stealing of electricity. A backlight screen is provided on the intelligent electric meter for displaying information such as power consumption. The working principle of the backlight screen is mainly that light is emitted by a backlight source, and these lights form an image after being transmitted or reflected by a liquid crystal molecule layer. The backlight source can be an LED lamp or a fluorescent tube, etc., which provide illumination behind the display panel so that the liquid crystal molecule layer can display an image.

[0003] The existing backlight screen of an intelligent electric meter does not have the function of automatically lighting up. When the user uses it, the user still needs to manually press a button to control the backlight screen to light up. The intelligent electric meter is mostly set in a dim environment, which leads to the problem that it is inconvenient to manually light up the backlight screen. Content of the Utility Model

[0004] Based on the above background, the purpose of the utility model is to provide a backlight screen for an intelligent electric meter to solve the problems described in the background technique.

[0005] In order to achieve the above utility model purpose, the utility model provides the following technical solutions:

[0006] A backlight screen for an intelligent electric meter includes a backlight screen main body, a heat dissipation mechanism is arranged on the outer wall of the backlight screen main body, and an automatic lighting mechanism is arranged on the back of the heat dissipation mechanism.

[0007] The automatic lighting mechanism includes a back frame, a backlight source main body is fixedly installed on the inner wall of the back frame, a convex frame is fixedly installed on the top of the back frame, a controller main body is fixedly installed on the inner wall of the convex frame, a human body infrared sensor located on the right side of the controller main body is fixedly installed on the inner wall of the convex frame, and the backlight source main body and the human body infrared sensor are both electrically connected to the controller main body.

[0008] Preferably, installation feet are fixedly installed on both sides of the back frame, and positioning holes are opened on the front surface of the installation feet.

[0009] Preferably, the heat dissipation mechanism includes a support frame, the backlight screen main body is detachably connected to the inner wall of the support frame, a through hole located on the left side of the backlight screen main body is opened on the front surface of the support frame, and a strip-shaped tube located in front of the through hole is fixedly connected to the front surface of the support frame.

[0010] Preferably, exhaust small holes are formed in the right side of the strip-shaped tube, a hollow plate is fixedly connected to the left side of the strip-shaped tube, and an air inlet cylinder is fixedly connected to the front surface of the hollow plate.

[0011] Preferably, a bracket is fixedly installed on the inner wall of the air inlet cylinder, an impeller is rotatably connected to the inner wall of the air inlet cylinder, a motor is fixedly installed on the front surface of the bracket, and an output group of the motor is fixedly connected to the front surface of the impeller.

[0012] Preferably, a plugging ring part is movably inserted into the front surface of the air inlet cylinder, a filter cylinder is fixedly installed on the inner wall of the plugging ring part, a magnetic attraction block is fixedly installed on the plugging ring part, and the back surface of the magnetic attraction block is magnetically connected to the front surface of the air inlet cylinder.

[0013] Preferably, a spacer frame is fixedly installed on the back surface of the support frame, the back surface of the spacer frame is fixedly connected to the front surface of the back frame, a round hole is formed in the right side of the spacer frame, and a rubber fin is fixedly connected to the inner wall of the round hole.

[0014] Compared with the prior art, the present utility model has the following advantages:

[0015] Through the design of the human body infrared sensor, it can detect the presence of a human body based on the principles of infrared radiation and pyroelectric effect. Immediately, the changes generated by the approach of the human body are fed back to the controller main body through electrical signals. Then, the controller main body controls the backlight main body to work, realizing the function of automatically lighting up when a human body approaches, avoiding the problem that it is inconvenient to manually light up in a dim environment, increasing the efficiency of users for checking the electricity meter, and improving the practicability of this structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 2 is a separated structural schematic diagram of the support frame, spacer frame and back frame of the present utility model;

[0019] Figure 3 is Figure 2 an enlarged view of the structure A in

[0020] Figure 4 is a structural schematic diagram of the exhaust small holes of the present utility model;

[0021] Figure 5 This is a schematic cross-sectional view of the air intake cylinder of the present utility model.

[0022] In the figure: 1. Backlight screen main body; 2. Heat dissipation mechanism; 21. Support frame; 22. Through hole; 23. Striped tube; 24. Exhaust small hole; 25. Hollow plate; 26. Air intake cylinder; 261. Bracket; 262. Motor; 263. Impeller; 264. Plug-in ring part; 265. Filter cartridge; 266. Magnetic attraction block; 27. Spacer frame; 271. Round hole; 272. Rubber fin; 3. Automatic lighting mechanism; 31. Back frame; 32. Backlight source main body; 33. Mounting foot; 34. Raised frame; 35. Controller main body; 36. Human body infrared sensor. Specific embodiments

[0023] The technical solutions of the present utility model will be further specifically described below through specific embodiments in conjunction with the drawings. It should be understood that the implementation of the present utility model is not limited to the following embodiments, and any formal modification and / or change made to the present utility model will fall within the protection scope of the present utility model.

[0024] In the present utility model, unless otherwise specified, all parts and percentages are in weight units, and the equipment and raw materials used can be purchased from the market or are commonly used in the art. The methods in the following embodiments are conventional methods in the art unless otherwise specified. The components or equipment in the following embodiments are all general standard parts or components known to those skilled in the art, and their structures and principles can all be known by those skilled in the art through technical manuals or obtained through conventional experimental methods.

[0025] The following makes a detailed description of the embodiments of the present utility model in conjunction with the drawings. In the following detailed description, for the sake of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present utility model. However, one or more embodiments can also be implemented by those skilled in the art without these specific details.

[0026] Such as Figures 1-5As shown in the figure, a backlight screen for an intelligent electric meter includes a backlight screen main body 1. A heat dissipation mechanism 2 is provided on the outer wall of the backlight screen main body 1. An automatic lighting mechanism 3 is provided on the back of the heat dissipation mechanism 2. The automatic lighting mechanism 3 includes a back frame 31. A backlight source main body 32 is fixedly installed on the inner wall of the back frame 31. A convex frame 34 is fixedly installed on the top of the back frame 31. A controller main body 35 is fixedly installed on the inner wall of the convex frame 34. A human body infrared sensor 36 located on the right side of the controller main body 35 is fixedly installed on the inner wall of the convex frame 34. Both the backlight source main body 32 and the human body infrared sensor 36 are electrically connected to the controller main body 35. Installation feet 33 are fixedly installed on both sides of the back frame 31. Positioning holes are opened on the front surface of the installation feet 33. The human body infrared sensor 36 can detect the presence of a human body based on the principles of infrared radiation and pyroelectric effect. Immediately, the changes generated by the approach of the human body are fed back to the controller main body 35 through electrical signals. Then, the controller main body 35 controls the backlight source main body 32 to work, realizing the function of automatically lighting up when a human body approaches, improving the efficiency of users' inspection of the electric meter. Screws can be passed through the positioning holes on the installation feet 33 and then connected to the electric meter to complete the installation process of this structure.

[0027] In this embodiment, the heat dissipation mechanism 2 includes a support frame 21. The backlight screen main body 1 is detachably connected to the inner wall of the support frame 21. A through hole 22 located on the left side of the backlight screen main body 1 is opened on the front surface of the support frame 21. A strip-shaped tube 23 located in front of the through hole 22 is fixedly connected to the front surface of the support frame 21. Exhaust small holes 24 are opened on the right side of the strip-shaped tube 23. A hollow plate 25 is fixedly connected to the left side of the strip-shaped tube 23. An intake cylinder 26 is fixedly connected to the front surface of the hollow plate 25. A bracket 261 is fixedly installed on the inner wall of the intake cylinder 26. An impeller 263 is rotatably connected to the inner wall of the intake cylinder 26. A motor 262 is fixedly installed on the front surface of the bracket 261. The output group of the motor 262 is fixedly connected to the front surface of the impeller 263. By controlling the motor 262 to work, the impeller 263 can be driven to rotate in the inner cavity of the intake cylinder 26. Furthermore, air can be absorbed from the front of the intake cylinder 26 and conveyed into the inner cavity of the hollow plate 25. Then, the air enters the strip-shaped tube 23, and part of the air will be output from the exhaust small holes 24 to blow and clean the front surface of the backlight screen main body 1, avoiding the problem that too much dust adheres to the front surface of the backlight screen main body 1, which will affect the display effect of the backlight screen main body 1.

[0028] In this embodiment, a plug-in ring member 264 is movably plugged into the front surface of the air inlet cylinder 26. A filter cylinder 265 is fixedly installed on the inner wall of the plug-in ring member 264. A magnetic attraction block 266 is fixedly installed on the plug-in ring member 264. The back surface of the magnetic attraction block 266 is magnetically connected to the front surface of the air inlet cylinder 26. A spacer frame 27 is fixedly installed on the back surface of the support frame 21. The back surface of the spacer frame 27 is fixedly connected to the front surface of the back frame 31. A round hole 271 is formed on the right side of the spacer frame 27. A rubber fin 272 is fixedly connected to the inner wall of the round hole 271. Another part of the air inside the strip-shaped tube 23 will pass through the through hole 22 and enter the spacer frame 27, and then flow from left to right through the inner cavity of the spacer frame 27, which can realize the function of synchronously dissipating heat from the front surface of the backlight source main body 32 and the back surface of the backlight screen main body 1. The air will push the rubber fin 272 to generate elastic deformation and be discharged from the round hole 271. When the heat dissipation stops, the rubber fin 272 will return to its initial state to complete the sealing of the inner cavity of the round hole 271 and realize the dust-proof function. Through the design of the filter cylinder 265, the air absorbed by the impeller 263 can be filtered. Through the design of the magnetic attraction block 266, the plug-in ring member 264 is installed on the front surface of the air inlet cylinder 26 by magnetic attraction, which is convenient for users to disassemble and maintain the filter cylinder 265.

[0029] The working principle of a backlight screen for an intelligent electric meter of the present invention is as follows: During use, the human body infrared sensor 36 can monitor the change of the approach of a human body and then feedback it to the controller main body 35. The controller main body 35 controls the backlight source main body 32 to work, realizing the function of automatically lighting up the backlight source main body 32 when a human body approaches. The control motor 262 works to drive the impeller 263 to rotate, delivering air into the inner cavity of the strip-shaped tube 23. Part of the air will be output from the exhaust small holes 24 to blow and clean the front surface of the backlight screen main body 1. Another part of the air inside the strip-shaped tube 23 will pass through the through hole 22 and enter the spacer frame 27, and then flow from left to right through the inner cavity of the spacer frame 27, which can realize the function of synchronously dissipating heat from the front surface of the backlight source main body 32 and the back surface of the backlight screen main body 1.

[0030] In this article, specific examples are used to elaborate on the principle and implementation mode of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and modifications can still be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A backlight screen for an intelligent electric meter, comprising a backlight screen main body (1), characterized in that: A heat dissipation mechanism (2) is provided on the outer wall of the backlight screen main body (1), and an automatic lighting mechanism (3) is provided on the back of the heat dissipation mechanism (2); The automatic lighting mechanism (3) includes a back frame (31). A backlight source main body (32) is fixedly installed on the inner wall of the back frame (31). A convex frame (34) is fixedly installed on the top of the back frame (31). A controller main body (35) is fixedly installed on the inner wall of the convex frame (34). A human body infrared sensor (36) located on the right side of the controller main body (35) is fixedly installed on the inner wall of the convex frame (34). The backlight source main body (32) and the human body infrared sensor (36) are both electrically connected to the controller main body (35).

2. The backlight screen for an intelligent electric meter according to claim 1, wherein: Mounting feet (33) are fixedly installed on both sides of the back frame (31), and positioning holes are provided on the front surfaces of the mounting feet (33).

3. The backlight screen for an intelligent electric meter according to claim 1, characterized in that: The heat dissipation mechanism (2) includes a support frame (21). The backlight screen main body (1) is detachably connected to the inner wall of the support frame (21). A through hole (22) located on the left side of the backlight screen main body (1) is provided on the front surface of the support frame (21). A strip-shaped tube (23) located on the front of the through hole (22) is fixedly connected to the front surface of the support frame (21).

4. The backlight screen for an intelligent electric meter according to claim 3, characterized in that: Exhaust small holes (24) are provided on the right side of the strip-shaped tube (23). A hollow plate (25) is fixedly connected to the left side of the strip-shaped tube (23). An air intake cylinder (26) is fixedly connected to the front surface of the hollow plate (25).

5. The backlight screen for an intelligent electric meter according to claim 4, wherein: A bracket (261) is fixedly installed on the inner wall of the air intake cylinder (26). An impeller (263) is rotatably connected to the inner wall of the air intake cylinder (26). A motor (262) is fixedly installed on the front surface of the bracket (261). The output group of the motor (262) is fixedly connected to the front surface of the impeller (263).

6. An backlight screen for an intelligent electric meter according to claim 4, characterized in that: An insertion ring member (264) is movably inserted into the front surface of the air intake cylinder (26). A filter cartridge (265) is fixedly installed on the inner wall of the insertion ring member (264). A magnetic attraction block (266) is fixedly installed on the insertion ring member (264). The back surface of the magnetic attraction block (266) is magnetically connected to the front surface of the air intake cylinder (26).

7. An backlight screen for an intelligent electric meter according to claim 3, characterized in that: A spacer frame (27) is fixedly installed on the back surface of the support frame (21). The back surface of the spacer frame (27) is fixedly connected to the front surface of the back frame (31). A round hole (271) is provided on the right side of the spacer frame (27). A rubber fin (272) is fixedly connected to the inner wall of the round hole (271).

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