CN211148744U - Electric energy meter liquid crystal assembly - Google Patents
Electric energy meter liquid crystal assembly Download PDFInfo
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- CN211148744U CN211148744U CN201920580241.6U CN201920580241U CN211148744U CN 211148744 U CN211148744 U CN 211148744U CN 201920580241 U CN201920580241 U CN 201920580241U CN 211148744 U CN211148744 U CN 211148744U
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- liquid crystal
- circuit board
- electric energy
- energy meter
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Abstract
The utility model relates to an electric energy meter liquid crystal assembly, the electric energy meter comprises a circuit board positioned in a meter shell, the liquid crystal assembly comprises a liquid crystal bracket, the liquid crystal bracket is fixed with the circuit board through a support leg and is positioned above the circuit board; the backlight plate is detachably fixed on the liquid crystal bracket and is electrically connected with the circuit board; the liquid crystal panel is detachably fixed on the backlight plate through the matching of the liquid crystal bracket and is electrically connected with the circuit board; a liquid crystal sheet disposed above the liquid crystal panel. The utility model discloses reduce manufacturing cost, improved circuit board space utilization.
Description
Technical Field
The utility model relates to an electric energy meter technical field especially relates to an electric energy meter liquid crystal assembly.
Background
At present, a liquid crystal module of an electric energy meter mainly comprises a liquid crystal display screen directly and electrically connected with a mainboard of the electric energy meter, an indicator light and other parts, wherein the indicator light is positioned on the periphery of the liquid crystal display screen and directly and electrically connected with the mainboard.
This kind of project organization can occupy the bold area of mainboard, leads to the mainboard can be reduced by the utilized space greatly, in order to accomplish the assembly of other components and parts of electric energy meter, has to increase mainboard area or additionally sets up little circuit board, causes the cost-push.
Meanwhile, due to the fact that the liquid crystal display module is directly connected with the main board, once the liquid crystal display module is damaged, replacement cannot be completed, only the whole meter can be replaced, and waste of resources, manpower and material resources is caused.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, an object of the present invention is to provide an electric energy meter liquid crystal module which occupies a small area of a circuit board, improves the utilization rate of the circuit board of the electric energy meter, and is convenient to replace.
In order to achieve the above object, the utility model adopts the following technical scheme: an electric energy meter liquid crystal assembly, the electric energy meter including a circuit board located within a case, characterized in that: the liquid crystal module comprises a liquid crystal layer,
the liquid crystal support is fixed with the circuit board through the support legs and is positioned above the circuit board;
the backlight plate is detachably fixed on the liquid crystal bracket and is electrically connected with the circuit board;
the liquid crystal panel is detachably fixed on the backlight plate through the matching of the liquid crystal bracket and is electrically connected with the circuit board;
a liquid crystal sheet disposed above the liquid crystal panel.
Preferably, the side edge of the liquid crystal bracket is formed with an elastic extension part, the free end of the elastic extension part forms a projection towards the liquid crystal panel, and the distance between the lower bottom surface of the projection and the backlight plate is equal to the thickness of the corresponding side edge of the liquid crystal panel.
Preferably, two end corners on the other side edge of the liquid crystal bracket opposite to the side edge are upwardly formed with end corner protection parts, and the end corner protection parts sandwich corresponding end corners of the liquid crystal panel and cooperate with the elastic extension parts to limit the movement of the liquid crystal panel.
Preferably, a through hole is further formed on the other side of the liquid crystal support, and the liquid crystal panel is electrically connected to the circuit board through a pin passing through the through hole.
Preferably, a notch is formed on one side edge of the liquid crystal support perpendicular to the side edge, and the backlight plate is electrically connected with the circuit board through a contact pin positioned in the notch.
Preferably, the liquid crystal support has four supporting legs, and a barb is upwards formed at the tail end of one of the supporting legs, and the barb passes through a corresponding mounting hole on the circuit board and then is attached to the lower side surface of the circuit board.
Preferably, the under bump bottom surface is a plane.
Preferably, the lower ends of the other three support legs of the liquid crystal support are provided with convex columns with cross sections smaller than that of the corresponding support legs, and the convex columns are installed in a matched mode with the corresponding installation holes in the circuit board.
Compared with the prior art, the utility model has the advantages of: the liquid crystal panel is arranged above the circuit board through the liquid crystal bracket, so that the problems that the space utilization rate of the circuit board is low and the circuit board bearing components need to be additionally arranged because the liquid crystal panel is attached to the circuit board in the prior art are solved, and the production cost is reduced; meanwhile, due to the assembly between the liquid crystal support and the circuit board and the detachable connection between the liquid crystal support and the liquid crystal board, when the liquid crystal module goes wrong, the liquid crystal module can be directly replaced without replacing the whole ammeter, and the cost is saved.
Drawings
Fig. 1 is a schematic structural diagram of a liquid crystal module of an electric energy meter according to the present invention.
Fig. 2 is a first angular exploded view of the liquid crystal assembly of the power meter of fig. 1.
Fig. 3 is a second angular exploded view of the liquid crystal assembly of the power meter of fig. 1.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
Fig. 1-2 show a preferred embodiment of a liquid crystal module of an electric energy meter according to the present invention. The electric energy meter liquid crystal assembly comprises a liquid crystal support 2, a backlight plate 3 and a liquid crystal plate 4, wherein the liquid crystal support 2 is fixed with a circuit board 1 in an electric energy meter through support legs 21 and is positioned above the circuit board 1, the backlight plate 3 is detachably fixed on the liquid crystal support 2 and is electrically connected with the circuit board 1, the liquid crystal plate 4 is detachably fixed on the backlight plate 3 through the matching of the liquid crystal support 2 and is electrically connected with the circuit board 1, and a liquid crystal plate 6 is further arranged above the liquid crystal plate 4.
In order to fix the liquid crystal panel, the side edge of the liquid crystal bracket 2 is formed with an elastic extension part 22, the free end of the elastic extension part 22 forms a bump 221 towards the liquid crystal panel 4, and the distance between the lower bottom surface of the bump 221 and the backlight plate 3 is equal to the thickness of the corresponding side edge of the liquid crystal panel 4, so that the liquid crystal panel 4 can be positioned between the backlight plate and the bump 221. The elastic extension 22 may be provided in plurality, side by side, on the side of the liquid crystal holder 2, or may be provided in only one.
It should be noted that the liquid crystal panel 4 is fragile and cannot bear much pressure, and to solve this problem, the lower bottom surface of the bump 221 is flat and is attached to the edge of the upper surface of the liquid crystal panel 4, so that the pressure borne by the liquid crystal panel 4 can be dispersed, and the damage rate of the liquid crystal panel 4 can be reduced.
In order to further protect the liquid crystal panel, two end corners on the other side edge of the liquid crystal bracket 2 opposite to the side edge are upwards formed with end corner protection parts 23, and the end corner protection parts 23 clamp the corresponding end corners of the liquid crystal panel 4 and are matched with the elastic extension parts 22, so that the movement of the liquid crystal panel 4 on the plane of the liquid crystal panel 4 is limited, and the assembly stability is improved. Obviously, the end angle is an included angle formed by the other side edge and the side edge intersecting with the other side edge, and two sides of the included angle respectively extend upwards to form the end angle protection portion 23.
As shown in fig. 2-3, a through hole 24 is further formed on the other side of the liquid crystal holder 2, and the liquid crystal panel 4 is electrically connected to the circuit board 1 through the pins 5 passing through the through hole 24. Similarly, in order to facilitate the connection between the backlight plate and the circuit board, a notch 25 is formed on one side edge of the liquid crystal bracket 2 perpendicular to the side edge, and the backlight plate 3 is electrically connected with the circuit board 1 through a pin 5 located in the notch 25.
The liquid crystal support 2 is provided with four support legs 21, wherein a barb 211 is upwards formed at the tail end of one support leg 21, and the barb 211 passes through the corresponding mounting hole 11 on the circuit board 1 and then is attached to the lower side surface of the circuit board 1. Of course, the support leg may also adopt the same structure as the rest three support legs without adopting the inverted hook design, and the liquid crystal bracket 2 can be fixed well, specifically referring to fig. 2-3, the lower ends of the rest three support legs 21 of the liquid crystal bracket 2 are formed with convex columns 212 with cross sections smaller than the cross section of the corresponding support leg 21, and the convex columns 212 are installed in the corresponding installation holes 11 on the circuit board 1 in a matching manner.
This application adopts the liquid crystal support to erect liquid crystal module on the circuit board, fine release the circuit board space, improved circuit board space utilization, assembly connection convenient to detach between liquid crystal support and the circuit board simultaneously, when the liquid crystal assembly appears damaging, can only change the liquid crystal assembly can, and need not to change whole ammeter, saved manufacturing cost and manpower and materials.
In addition to the above-mentioned modifications, other similar modifications are also included in the scope of the present invention, and are not described herein in detail. While 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 alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. The utility model provides an electric energy meter liquid crystal module which characterized in that: the liquid crystal module comprises a liquid crystal layer,
the liquid crystal support (2) is fixed with a circuit board (1) in the electric energy meter through a support leg (21) and is positioned above the circuit board (1);
the backlight plate (3) is detachably fixed on the liquid crystal support (2) and is electrically connected with the circuit board (1);
the liquid crystal panel (4), the said liquid crystal panel (4) is fixed on the back light board (3) and connected with circuit board (1) removably through the cooperation of the liquid crystal support (2);
a liquid crystal sheet (6), wherein the liquid crystal sheet (6) is arranged above the liquid crystal panel (4).
2. The electric energy meter liquid crystal assembly of claim 1, wherein:
the side edge of the liquid crystal bracket (2) is upwards formed with an elastic extension part (22), the free end of the elastic extension part (22) forms a convex block (221) towards the liquid crystal panel, and the distance between the lower bottom surface of the convex block (221) and the backlight plate (3) is equal to the thickness of the corresponding side edge of the liquid crystal panel (4).
3. The electric energy meter liquid crystal assembly of claim 2, wherein:
end corner protection parts (23) are formed on two end corners on the other side edge of the liquid crystal bracket (2) opposite to the side edge, the end corner protection parts (23) are formed by respectively extending and intersecting two edges of the end corners upwards, and the end corner protection parts (23) clamp the corresponding end corners of the liquid crystal panel (4) and are matched with the elastic extension parts (22) to limit the movement of the liquid crystal panel (4).
4. The electric energy meter liquid crystal assembly of claim 3, wherein:
and a through hole (24) is formed on the other side edge of the liquid crystal bracket (2), and the liquid crystal panel (4) is electrically connected with the circuit board (1) through a pin (5) penetrating through the through hole (24).
5. The electric energy meter liquid crystal assembly of claim 3, wherein:
a notch (25) is formed in one side edge, perpendicular to the side edge, of the liquid crystal support (2), and the backlight plate (3) is electrically connected with the circuit board (1) through a contact pin (5) located in the notch (25).
6. The electric energy meter liquid crystal assembly of claim 1, wherein:
liquid crystal support (2) have four stabilizer blades (21), and one of them stabilizer blade (21) end upwards is formed with barb (211), barb (211) pass behind mounting hole (11) that correspond on circuit board (1) and laminate with circuit board (1) downside.
7. The electric energy meter liquid crystal assembly of claim 2, wherein:
the lower bottom surface of the bump (221) is a plane.
8. The electric energy meter liquid crystal assembly of claim 6, wherein:
convex columns (212) with cross sections smaller than those of the corresponding support legs (21) are formed at the lower ends of the other three support legs (21) of the liquid crystal support (2), and the convex columns (212) are installed in a matched mode with the corresponding installation holes (11) in the circuit board (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920580241.6U CN211148744U (en) | 2019-04-25 | 2019-04-25 | Electric energy meter liquid crystal assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920580241.6U CN211148744U (en) | 2019-04-25 | 2019-04-25 | Electric energy meter liquid crystal assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211148744U true CN211148744U (en) | 2020-07-31 |
Family
ID=71758231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920580241.6U Active CN211148744U (en) | 2019-04-25 | 2019-04-25 | Electric energy meter liquid crystal assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211148744U (en) |
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2019
- 2019-04-25 CN CN201920580241.6U patent/CN211148744U/en active Active
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