Circuit board structure for electric energy meter and electric energy meter

Abstract

The utility model discloses a circuit board structure for an electric energy meter and the electric energy meter, which are more convenient to install and wire. According to the technical scheme, the circuit board comprises a circuit board body, a mounting support is arranged on the circuit board body, a backlight plate mounting groove and a liquid crystal screen mounting groove located at the upper end of the backlight plate mounting groove are formed in the upper end of the mounting support, a backlight plate is mounted through the backlight plate mounting groove, and a liquid crystal screen is mounted through the liquid crystal screen mounting groove. The liquid crystal screen mounting groove is provided with a group of first elastic buckles which are clamped on the liquid crystal screen, and the side surface of the mounting bracket is provided with a backlight plate wiring terminal seat which is used for wiring with the backlight plate and a liquid crystal screen wiring terminal seat which is used for wiring with the liquid crystal screen.

Description

Technical Field

[0001] The utility model belongs to the field of electric energy meters, and in particular relates to a circuit board structure for electric energy meters. Background Art

[0002] A traditional electricity meter consists of a case, a PCB mounted inside the case, and a cover mounted on top of the case. The cover houses an LCD and backlight. The LCD and backlight are secured to the cover with screws and then connected to the PCB via flexible cables. However, this approach presents drawbacks: installation and wiring are complex, making subsequent maintenance inconvenient. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a circuit board structure for an electric energy meter and an electric energy meter which are more convenient to install and connect.

[0004] In order to solve the above problems, the technical solution adopted by the present invention includes: a circuit board body, characterized in that: a mounting bracket is provided on the circuit board body, a backlight panel mounting groove and a LCD screen mounting groove located at the upper end of the backlight panel mounting groove are provided on the upper end of the backlight panel mounting groove, a backlight panel is installed through the backlight panel mounting groove, and a LCD screen is installed through the LCD screen mounting groove, a group of first elastic clips that are clamped to the LCD screen are provided on the LCD screen mounting groove, and a backlight panel wiring terminal seat for wiring to the backlight panel and an LCD screen wiring terminal seat for wiring to the LCD screen are provided on the side of the mounting bracket.

[0005] The circuit board structure for the electric energy meter is characterized in that the mounting bracket is connected to the slots on the circuit board body via second elastic buckles on both sides of the bottom.

[0006] The circuit board structure for the electric energy meter is characterized in that a positioning column is provided at the bottom of the mounting bracket to cooperate with the circuit board body.

[0007] The circuit board structure for the electric energy meter is characterized in that hanging slots are provided at the four corners of the backlight panel installation slot, and hooks connected to the hanging slots are provided on the backlight panel.

[0008] The circuit board structure for the electric energy meter is characterized in that the LCD screen mounting groove is formed by four L-shaped positioning feet.

[0009] The circuit board structure for the electric energy meter is characterized in that a battery box terminal block is provided at the end of the circuit board body, the battery box terminal block includes a terminal block shell, and terminal blocks provided in the terminal block shell, and the terminal blocks include pins extending from the lower end of the terminal block shell and triangular elastic contacts extending from the upper end of the terminal block shell.

[0010] The circuit board structure for the electric energy meter is characterized in that the terminal block housing is connected to the circuit board body via a conical rivet foot at the bottom.

[0011] An electric energy meter comprises a meter case, wherein the circuit board structure for the electric energy meter described in any one of the above items is installed in the meter case.

[0012] The advantages of the circuit board structure and the electric energy meter of the present invention are as follows: by providing a mounting bracket on the PCB board, the LCD screen and the backlight panel are directly integrated into the mounting bracket, and then connected to the PCB board through the terminal block on the mounting bracket, making installation and wiring more convenient, and because the meter cover and the meter case are not constrained by the wiring connection, disassembly and maintenance are more convenient.

[0013] The present invention will be further described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of the circuit board structure for the electric energy meter of the utility model;

[0015] Figure 2 This is an exploded view of the circuit board structure for the electric energy meter of the utility model;

[0016] Figure 3 This is a cross-sectional view of the circuit board structure for an electric energy meter according to the present invention;

[0017] Figure 4 It is a cross-sectional view of the battery box terminal block of the utility model;

[0018] Figure 5 It is a structural diagram of the mounting bracket of the utility model;

[0019] Figure 6 It is a cross-sectional view of the electric energy meter of the utility model. DETAILED DESCRIPTION Embodiment 1:

[0020] Reference Figure 1-5As shown, the circuit board structure for an electric energy meter of the present invention includes a circuit board body 1, a mounting bracket 2 is provided on the circuit board body 1, a backlight panel mounting groove 3 and a liquid crystal screen mounting groove 4 located at the upper end of the backlight panel mounting groove 3 are provided on the upper end of the mounting bracket 2. A backlight panel 5 is mounted through the backlight panel mounting groove 3, and a liquid crystal screen 6 is mounted through the liquid crystal screen mounting groove 4. A first elastic clip 7 is provided on the four corners of the liquid crystal screen mounting groove 4 to be clamped to the liquid crystal screen 6. A backlight panel terminal block 8 for wiring to the backlight panel 5 and a liquid crystal screen terminal block 9 for wiring to the liquid crystal screen 6 are provided on the side of the mounting bracket 2. When in use: pins are inserted into the backlight panel terminal block 8 and the liquid crystal screen terminal block 9 to connect to the circuit board body 1 respectively, and the backlight panel 5 and the liquid crystal screen 6 are connected to the pins through the female connector on the cable.

[0021] Preferably, the mounting bracket 2 is connected to the card slots 11 on the circuit board body 1 through the second elastic buckles 10 on both sides of the bottom, so as to achieve a quick connection between the mounting bracket 2 and the circuit board body 1.

[0022] Preferably, a positioning column 12 is provided at the bottom of the mounting bracket 2 for positioning with the circuit board body 1 to improve the stability of the connection of the mounting bracket 2.

[0023] Preferably, the four corners of the backlight panel mounting slot 3 are provided with hanging slots 13, and the backlight panel 5 is provided with hooks 14 connected to the hanging slots 13. The connection between the hooks 14 and the hanging slots 13 serves to fix the backlight panel 5.

[0024] Preferably, the LCD screen installation slot 4 is formed by four L-shaped positioning feet 15, so as to facilitate the disassembly and assembly of the LCD screen 6, and because the periphery is transparent, it is easier to dissipate heat of the LCD screen 6.

[0025] Preferably, a battery box terminal block 16 is provided at the end of the circuit board body 1. The battery box terminal block 16 includes a terminal block housing 17 and terminal blocks 18 disposed within the terminal block housing 17. The terminal blocks 18 include pins 19 extending from the lower end of the terminal block housing 17 and triangular elastic contacts 20 extending from the upper end of the terminal block housing 17. The pins 19 are plugged into the circuit board body 1, and the triangular elastic contacts 20 are connected to the contacts on the battery box to achieve quick connection between the battery box and the circuit board body 1. The terminal block housing 17 is connected to the circuit board body 1 via a conical rivet foot 21 at the bottom, achieving quick connection between the terminal block housing 17 and the circuit board body 1. Example 2:

[0026] Reference Figure 6As shown, the electric energy meter of the present invention includes a meter case 22, and the circuit board structure a for the electric energy meter described in any one of the embodiments 1 is installed in the meter case 22.

[0027] As mentioned above, this does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this profession can make some changes or modifications to the above-disclosed structures and technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A circuit board structure for an electric energy meter, comprising a circuit board body (1), characterized in that: The circuit board body (1) is provided with a mounting bracket (2), the upper end of the mounting bracket (2) is provided with a backlight panel mounting groove (3) and a liquid crystal screen mounting groove (4) located at the upper end of the backlight panel mounting groove (3), a backlight panel (5) is mounted through the backlight panel mounting groove (3), and a liquid crystal screen (6) is mounted through the liquid crystal screen mounting groove (4), the liquid crystal screen mounting groove (4) is provided with a group of first elastic buckles (7) that are clamped to the liquid crystal screen (6), and the side of the mounting bracket (2) is provided with a backlight panel wiring terminal seat (8) for wiring with the backlight panel (5) and a liquid crystal screen wiring terminal seat (9) for wiring with the liquid crystal screen (6).

2. The circuit board structure for an electric energy meter according to claim 1, characterized in that: The mounting bracket (2) is connected to the card slots (11) on the circuit board body (1) via second elastic clips (10) on both sides of the bottom.

3. The circuit board structure for an electric energy meter according to claim 2, characterized in that: A positioning column (12) is provided at the bottom of the mounting bracket (2) for positioning with the circuit board body (1).

4. The circuit board structure for an electric energy meter according to claim 1, wherein: Hanging slots (13) are provided at the four corners of the backlight panel installation slot (3), and hooks (14) connected to the hanging slots (13) are provided on the backlight panel (5).

5. The circuit board structure for an electric energy meter according to claim 1, characterized in that: The liquid crystal screen installation groove (4) is formed by four L-shaped positioning feet (15).

6. The circuit board structure for an electric energy meter according to claim 1, characterized in that: A battery box terminal block (16) is provided at the end of the circuit board body (1), the battery box terminal block (16) comprising a terminal block housing (17), a terminal block (18) provided in the terminal block housing (17), and the terminal block (18) comprising a pin (19) extending from the lower end of the terminal block housing (17) and a triangular elastic contact (20) extending from the upper end of the terminal block housing (17).

7. The circuit board structure for an electric energy meter according to claim 6, characterized in that: The terminal block housing (17) is connected to the circuit board body (1) via a conical rivet foot (21) at the bottom.

8. An electric energy meter, comprising a meter case (22), characterized in that: The circuit board structure (a) for an electric energy meter according to any one of claims 1 to 7 is installed in the meter case (22).

Images