Circuit board assembly of electric energy meter

Abstract

The utility model provides a circuit board assembly of an electric energy meter, comprising a liquid crystal support which is installed on a circuit board and comprises a support main body and a plurality of first installation columns which are integrally formed with the support main body and are arranged at one side of the width direction of the support main body, and the support main body is used for installing a liquid crystal backlight assembly; the bottom end of the first installation column extends to be close to the circuit board, and the first installation column is provided with a first insertion hole for a first pin of the LED lamp to penetrate through. Due to the fact that the first installation column and the liquid crystal support are integrally designed, a traditional discrete installation mode is fundamentally changed, the long and thin LED pins are guided and protected in the insertion holes before assembly, and collision and bending in the carrying and installation process are effectively avoided. Besides, the circuit board is provided with the first mounting hole for the battery to pass through, so that the battery can reasonably utilize partial space below the circuit board, the height of the whole electric energy meter shell is reduced, and the first mounting hole also provides direct physical positioning and constraint for the battery.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric energy meter, concretely relates to a line board subassembly of electric energy meter. BACKGROUND

[0002] The LED lamp and infrared emission receiving component for indication and communication on the line board of the existing electric energy meter are usually separately installed on the line board, since the LED pin is slender and exposed, the operator is extremely easy to mis-touch when installing or adjusting the line board, leading to pin bending or even breaking, which not only increases assembly difficulty and working hours consumption, but also can cause quality problems such as poor contact, function failure, directly affecting the reliability and production efficiency of the electric energy meter. SUMMARY

[0003] Therefore, the utility model wants to overcome the defects in the prior art, so as to provide a line board subassembly of electric energy meter with high safety and reliability.

[0004] Therefore, the utility model provides a line board subassembly of electric energy meter, which comprises a liquid crystal support installed on a line board, which comprises a support main body and a plurality of first mounting columns integrally formed with the support main body and located on one side of the support main body in the width direction, the support main body is used for installing a liquid crystal backlight assembly, and the bottom end of the first mounting column extends to be close to the line board and is provided with a first jack hole for the first pin of the LED lamp to pass through.

[0005] The top of the first mounting column is formed with a limiting groove, and the bottom of the lamp holder of the LED lamp is formed with a flange matched with the limiting groove.

[0006] An infrared emitter and an infrared receiver are installed on the line board, a second mounting column is formed on one side of the support main body in the width direction, the second mounting column extends to be close to the line board, and is formed with three second jack holes for the second pin of the infrared emitter to pass through, and the three second jack holes are distributed at intervals along the width direction of the support main body.

[0007] The top of the second mounting column is provided with a boss for installing an infrared emission head, and the two sides of the boss are provided with limiting blocks abutting against the infrared emission head.

[0008] The liquid crystal backlight assembly comprises liquid crystal and backlight arranged above and below, third mounting columns are arranged on both sides of the support main body in the width direction, the third mounting columns extend to be close to the line board, and are formed with a plurality of third jack holes for the pins of the liquid crystal to pass through.

[0009] The support body has a fourth mounting column formed on one side of the length direction thereof, the fourth mounting column extending to be close to the circuit board, and the fourth mounting column is formed with a fourth insertion hole for the backlight pin to pass through.

[0010] The circuit board is provided with a connector, and the positive and negative electrode pins of the battery are connected to the terminals of the connector in correspondence, the connector is provided with two welding pins and a plurality of elastic reverse buckles, the circuit board is formed with a welding hole for the welding pins to be inserted and fixed, and a second mounting hole is arranged in correspondence with the elastic reverse buckles, the elastic reverse buckles pass through the second mounting hole and are hooked against the back surface of the circuit board.

[0011] The technical scheme of the utility model has the following advantages:

[0012] 1. The utility model provides a circuit board assembly of electric energy meter, liquid crystal support includes support body, and with support body integral moulding, and a plurality of first mounting column is located support body width direction one side, support body is used for installing liquid crystal backlight assembly, first mounting column bottom end extends to close to circuit board setting, it has first insertion hole for LED lamp's first pin to pass through, because first mounting column and liquid crystal support integral design, this fundamentally changed traditional separate installation mode, makes the slender LED pin is guided and protected in the insertion hole before assembling, effectively avoids the collision bending in the process of carrying and installing, significantly improves assembly efficiency and one time pass rate, in addition, first installation hole is set up on the circuit board for the battery to pass through, so that the battery can reasonably use the part of space below the circuit board, thereby reduce the height of the whole electric energy meter shell, and first installation hole also provides direct physical positioning and constraint for the battery itself, prevents it from shaking on the circuit board, ensures the stability of the battery pin and connector terminal alignment.

[0013] 2. The utility model provides a circuit board assembly of electric energy meter, the top of first mounting column is formed with a limiting groove, the bottom of the lamp holder of LED lamp is formed with a flange matched with the limiting groove, which limits the circumferential rotation and axial movement of the LED lamp holder, ensuring its accurate and stable position.

[0014] 3. The utility model provides a circuit board assembly of electric energy meter, the connector has two welding pins and a plurality of elastic reverse buckles arranged below, the circuit board is formed with a welding hole for the welding pins to be inserted and fixed, and a second mounting hole is arranged in correspondence with the elastic reverse buckles, the elastic reverse buckles pass through the second mounting hole and are hooked against the back surface of the circuit board, forming reliable temporary mechanical positioning, which completely eliminates the dependence on additional auxiliary tooling in the welding process, compared with the prior art, which greatly improves the assembly efficiency and process consistency. BRIEF DESCRIPTION OF DRAWINGS

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a first perspective view of the circuit board assembly of the electricity meter of this utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the exploded structure;

[0018] Figure 3 This is a schematic diagram showing the separation of the LCD backlight assembly and the LED;

[0019] Figure 4 This is a first assembly diagram of the battery, connectors, and circuit board.

[0020] Figure 5 This is a second assembly diagram of the battery, connectors, and circuit board.

[0021] Figure 6 for Figure 5 A magnified structural diagram of part A in the middle;

[0022] Figure 7 This is a schematic diagram of the exploded structure of the battery and connector.

[0023] Explanation of reference numerals in the attached drawings: 1. LCD bracket; 2. Circuit board; 3. Bracket body; 4. First mounting post; 5. LCD backlight assembly; 6. LED lamp; 7. First pin; 8. First socket; 9. Battery; 10. First mounting hole; 11. Limiting groove; 12. Lamp head; 13. Flange; 14. Infrared transmitter; 15. Infrared receiver; 16. Second mounting post; 17. Second pin; 18. Second socket; 19. Infrared transmitter; 20. Boss; 21. Limiting block; 22. LCD; 23. Backlight; 24. Third mounting post; 25. LCD pin; 26. Third socket; 27. Fourth mounting post; 28. Backlight pin; 29. ​​Fourth socket; 30. Connector; 31. Positive and negative pins; 32. Terminal; 33. Soldering pin; 34. Flexible snap; 35. Solder hole; 36. Second mounting hole. Detailed Implementation

[0024] The technical solutions of the present application will be described clearly and completely in connection with the drawings. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0025] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0028] Embodiment

[0029] The present embodiment provides a circuit board assembly of an electric energy meter, as shown in Figure 1 , comprising a liquid crystal support 1 and a circuit board 2.

[0030] The liquid crystal support 1 is mounted on the circuit board 2, as shown in Figure 1 , Figure 2 and Figure 3As shown, it comprises a bracket body 3 for mounting a liquid crystal backlight assembly 5, and a plurality of first mounting posts 4 integrally formed with the bracket body 3 and located on one side of the bracket body 3 in the width direction, the bottom end of the first mounting post 4 extending to be close to the circuit board 2, having a first insertion hole 8 for a first pin 7 of an LED lamp 6 to pass through, the top of the first mounting post 4 being formed with a limiting groove 11, the bottom of a lamp cap 12 of the LED lamp 6 being formed with a flange 13 matching the limiting groove 11, so as to limit the rotation of the LED lamp 6. An infrared emitter 14 and an infrared receiver 15 are mounted on the circuit board 2, a second mounting post 16 is formed on one side of the bracket body 3 in the width direction, the second mounting post 16 extending to be close to the circuit board 2, having three second insertion holes 18 for a second pin 17 of the infrared emitter 14 to pass through, the three second insertion holes 18 being distributed at intervals along the width direction of the bracket body 3, the top of the second mounting post 16 being provided with a boss 20 for mounting an infrared emission head 19, the two sides of the boss 20 being provided with limiting blocks 21 abutting against the infrared emission head 19. The bracket body 3 has a fourth mounting post 27 formed on one side thereof in the length direction, the fourth mounting post 27 extending to be close to the circuit board 2, having a fourth insertion hole 29 for a backlight pin 28 to pass through.

[0031] The liquid crystal backlight assembly 5, as shown, comprises a liquid crystal 22 and a backlight 23 arranged one above the other, and third mounting posts 24 are arranged on both sides of the bracket body 3 in the width direction, the third mounting posts 24 extending to be close to the circuit board 2, having a plurality of third insertion holes 26 for liquid crystal pins 25 to pass through. Figure 3

[0032] The circuit board 2, as shown, is formed with a first mounting hole 10 for a battery 9 to pass through, the battery 9 being used to supply power to the liquid crystal backlight assembly 5. A connector 30 is mounted on the circuit board 2, and positive and negative pins 31 of the battery 9 are connected to corresponding terminals 32 of the connector 30, as shown, the connector 30 having two solder pins 33 arranged below and a plurality of elastic reverse buckles 34, the circuit board 2 being formed with solder holes 35 for the solder pins 33 to be inserted and welded, and second mounting holes 36 corresponding to the elastic reverse buckles 34, the elastic reverse buckles 34 being hooked against the back of the circuit board 2 after passing through the second mounting holes 36. Figure 4 Figure 5 Figure 6 Figure 7

[0033] ​​​​​The line board assembly of the electric energy meter is integrally designed with the first mounting column 4 and the liquid crystal support 1, which fundamentally changes the traditional separate installation mode, the slender LED pin is guided and protected in the jack before assembly, collision and bending in the carrying and installation process are effectively avoided, the assembly efficiency and the first-time qualification rate are remarkably improved, in addition, the first mounting hole 10 is arranged on the line board 2 for the battery 9 to pass through, the battery can reasonably utilize the space below the line board, the height of the whole electric energy meter shell is reduced, the first mounting hole 10 also provides direct physical positioning and constraint for the battery 9 itself, prevents the battery from shaking on the line board, and ensures the stability of the pin and the connector terminal.

[0034] Obviously, the above embodiments are only examples for clearly illustrating, not limiting the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. All the embodiments do not need to be exhausted here. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A line board assembly of an electric energy meter, characterized by, The application relates to a liquid crystal support (1) mounted on a circuit board (2), which comprises a support body (3) for mounting a liquid crystal backlight assembly (5), and a plurality of first mounting columns (4) integrally formed with the support body (3) and located on one side of the support body (3) in the width direction, the bottom end of the first mounting column (4) extending to be close to the circuit board (2) and provided with a first insertion hole (8) for a first pin (7) of an LED lamp (6). The circuit board (2) is provided with a first mounting hole (10) for a battery (9) to be inserted, and the battery (9) is used for supplying power to the liquid crystal backlight assembly (5). The top of the first mounting column (4) is provided with a limiting groove (11), and the bottom of a lamp holder (12) of the LED lamp (6) is provided with a flange (13) matched with the limiting groove (11).

2. The line-up board assembly of the electric energy meter according to claim 1, characterized by, An infrared emitter (14) and an infrared receiver (15) are mounted on the circuit board (2), and a second mounting column (16) is formed on one side of the support body (3) in the width direction, the second mounting column (16) extending to be close to the circuit board (2) and provided with three second insertion holes (18) for a second pin (17) of the infrared emitter (14), and the three second insertion holes (18) are distributed along the width direction of the support body (3).

3. The line-up board assembly of the electric energy meter according to claim 1, characterized by, The top of the second mounting column (16) is provided with a boss (20) for mounting an infrared emission head (19), and the two sides of the boss (20) are provided with limiting blocks (21) abutting against the infrared emission head (19).

4. The line-up board assembly of the electric energy meter according to claim 3, characterized by, The liquid crystal backlight assembly (5) comprises a liquid crystal (22) and a backlight (23) arranged in a top-down mode, and a third mounting column (24) is formed on both sides of the support body (3) in the width direction, the third mounting column (24) extending to be close to the circuit board (2) and provided with a plurality of third insertion holes (26) for a liquid crystal pin (25) to be inserted.

5. The line-up board assembly of the electric energy meter according to claim 1, characterized by, The support body (3) is provided with a fourth mounting column (27) formed on one side in the length direction, the fourth mounting column (27) extending to be close to the circuit board (2) and provided with a fourth insertion hole (29) for a backlight pin (28) to be inserted.

6. The line-up board assembly of the electric energy meter according to claim 5, characterized by, A connector (30) is mounted on the circuit board (2), positive and negative pin (31) of the battery (9) is connected to a terminal (32) of the connector (30) in correspondence, the connector (30) is provided with two welding pins (33) arranged below and a plurality of elastic reverse buckles (34), the circuit board (2) is provided with a welding hole (35) for the welding pins (33) to be inserted and welded, and a second mounting hole (36) corresponding to the elastic reverse buckles (34), the elastic reverse buckles (34) pass through the second mounting hole (36) and abut against the back of the circuit board (2).

7. The line-up board assembly of the electric energy meter according to claim 1, characterized by, ​

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