CN209980698U - LED dot matrix display device - Google Patents
LED dot matrix display device Download PDFInfo
- Publication number
- CN209980698U CN209980698U CN201921071519.3U CN201921071519U CN209980698U CN 209980698 U CN209980698 U CN 209980698U CN 201921071519 U CN201921071519 U CN 201921071519U CN 209980698 U CN209980698 U CN 209980698U
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- China
- Prior art keywords
- panel
- circuit board
- printed circuit
- frame
- display device
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- Expired - Fee Related
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Abstract
The utility model discloses a LED dot matrix display device relates to the weighing apparatus field, including panel and printed circuit board, printed circuit board installs in the upper surface of panel, printed circuit board's upper surface edge fixedly connected with protrusion frame, the installation through-hole has all been seted up to the four corners department of panel, the screw hole that corresponds with the installation through-hole has all been seted up to the upper surface four corners department of protrusion frame, the frame-shaped groove has been seted up to the upper surface of protrusion frame, the frame-shaped inslot has inlayed rubber seal, the constant head tank has all been seted up at the upper surface four sides middle part of protrusion frame, the locating piece of the equal fixedly connected with in lower surface four sides middle part. The utility model can enhance the sealing performance between the panel and the printed circuit board by arranging the rubber sealing ring, thereby avoiding entering dust or liquid and prolonging the service life of the LED dot matrix display device; the panel is fixed on the printed circuit board by using the fixing screws, so that the panel can be firmly fixed and can be prevented from falling off.
Description
Technical Field
The utility model relates to a weighing apparatus field, in particular to LED dot matrix display device.
Background
The electronic scale is a commonly used weighing electronic device in daily life, and has become more and more widespread due to small volume, light weight, simple operation and visual display. Most display devices used in the market in the weighing apparatus industry are capable of viewing display or control components located inside the device when the device is not powered on.
The utility model discloses a LED dot matrix display device that discloses in china utility model patent application laid-open specification CN 207165151U, though, this LED dot matrix display device can be according to the strong and weak automatically regulated LED dot matrix display luminance of ambient light, and solved the atomizing problem of LED lamp source light ring, make the display effect good, nevertheless, the leakproofness that this LED dot matrix display device's panel and printed circuit board are connected is not strong, get into dust or liquid easily, life has been reduced, the panel is fixed insecure, drop easily.
Therefore, it is necessary to invent an LED dot matrix display device to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a LED dot matrix display device to the leakproofness of solving the current LED dot matrix display device who proposes in the above-mentioned background art is not strong, gets into dust or liquid easily, has reduced life, and the panel is fixed insecure, the problem that drops easily.
In order to achieve the above object, the utility model provides a following technical scheme: an LED dot matrix display device comprises a panel and a printed circuit board, wherein the printed circuit board is installed on the upper surface of the panel, a protruding frame is fixedly connected to the edge of the upper surface of the printed circuit board, installation through holes are formed in four corners of the panel, threaded holes corresponding to the installation through holes are formed in the four corners of the upper surface of the protruding frame, a frame-shaped groove is formed in the upper surface of the protruding frame, a rubber sealing ring is embedded in the frame-shaped groove, and positioning grooves are formed in the middles of the four edges of the upper surface of the protruding frame;
the middle parts of four sides of the lower surface of the panel are fixedly connected with positioning blocks matched with the positioning grooves.
Optionally, the inner diameter of the mounting through hole is equal to the inner diameter of the threaded hole.
Optionally, the upper surface of the rubber sealing ring is attached to the lower surface of the panel.
Optionally, the frame-shaped groove is located inside the four threaded holes and the four positioning grooves.
Optionally, the positioning groove and the positioning block are both conical.
The utility model discloses a technological effect and advantage:
1. the utility model can enhance the sealing performance between the panel and the printed circuit board by arranging the rubber sealing ring, thereby avoiding entering dust or liquid and prolonging the service life of the LED dot matrix display device; the panel is fixed on the printed circuit board by using the fixing screws, so that the panel can be firmly fixed and can be prevented from falling off.
2. The utility model discloses a be provided with constant head tank and locating piece, can be fast with the panel location on printed circuit board, the quick installation of the panel of being convenient for has improved the installation effectiveness, simple structure is practical.
Drawings
Fig. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a rear view of the panel structure of the present invention.
Fig. 3 is a side view of the structure of the present invention.
Fig. 4 is a schematic side view of the structure of the present invention.
Fig. 5 is an enlarged schematic view of the structure at a in fig. 4 according to the present invention.
In the figure: 1. a panel; 2. a printed wiring board; 3. a protruding frame; 4. mounting a through hole; 5. a threaded hole; 6. a frame-shaped groove; 7. a rubber seal ring; 8. positioning a groove; 9. and (5) positioning the blocks.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The utility model provides a LED dot matrix display device as shown in figures 1-5, which comprises a panel 1 and a printed circuit board 2;
as shown in fig. 1, 3 and 4, the printed circuit board 2 is mounted on the upper surface of the panel 1, the edge of the upper surface of the printed circuit board 2 is fixedly connected with the protruding frame 3, the four corners of the panel 1 are all provided with mounting through holes 4, the four corners of the upper surface of the protruding frame 3 are all provided with threaded holes 5 corresponding to the mounting through holes 4, the panel 1 is conveniently fixed by using fixing screws, the panel 1 can be firmly fixed and is prevented from falling off, the structure is simple and practical, the inner diameter of the mounting through holes 4 is equal to the inner diameter of the threaded holes 5, the upper surface of the protruding frame 3 is provided with a frame-shaped groove 6, a rubber sealing ring 7 is embedded in the frame-shaped groove 6, the upper surface of the rubber sealing ring 7 is attached to the lower surface of the panel 1, the sealing performance between the panel 1 and the printed circuit board 2 can be enhanced, dust or liquid is prevented from entering, the service life of the LED, the frame-shaped groove 6 is located inside the four threaded holes 5 and the four positioning grooves 8.
As shown in the figures 2 and 5, the positioning block 9 matched with the positioning groove 8 is fixedly connected to the middle of the four sides of the lower surface of the panel 1, the positioning groove 8 and the positioning block 9 are conical, the panel 1 can be quickly positioned on the printed circuit board 2, the panel 1 is convenient to install quickly, the installation efficiency is improved, and the structure is simple and practical.
This practical theory of operation:
when installing panel 1, it is to it with locating piece 9 at the panel 1 back and constant head tank 8 on the protrusion frame 3, make panel 1 fix a position on printed circuit board 2, four installation through-holes 4 and four screw hole 5 one-to-ones this moment, fix panel 1 on printed circuit board 2 through the fixed screw, can make panel 1 fixed firm, avoid droing, panel 1 closely laminates with rubber seal 7, the leakproofness of being connected of panel 1 and printed circuit board 2 has been improved, avoid getting into dust or liquid, the life of this LED dot matrix display device has been improved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (5)
1. An LED dot matrix display device, comprising a panel (1) and a printed circuit board (2), characterized in that: the printed circuit board (2) is installed on the upper surface of the panel (1), the edge of the upper surface of the printed circuit board (2) is fixedly connected with a protruding frame (3), four corners of the panel (1) are provided with installation through holes (4), four corners of the upper surface of the protruding frame (3) are provided with threaded holes (5) corresponding to the installation through holes (4), the upper surface of the protruding frame (3) is provided with a frame-shaped groove (6), a rubber sealing ring (7) is embedded in the frame-shaped groove (6), and the middle parts of four sides of the upper surface of the protruding frame (3) are provided with positioning grooves (8);
the middle parts of four sides of the lower surface of the panel (1) are fixedly connected with positioning blocks (9) matched with the positioning grooves (8).
2. An LED dot matrix display device according to claim 1, wherein:
the inner diameter of the mounting through hole (4) is equal to that of the threaded hole (5).
3. An LED dot matrix display device according to claim 1, wherein:
the upper surface of the rubber sealing ring (7) is attached to the lower surface of the panel (1).
4. An LED dot matrix display device according to claim 1, wherein:
the frame-shaped groove (6) is positioned at the inner sides of the four threaded holes (5) and the four positioning grooves (8).
5. An LED dot matrix display device according to claim 1, wherein:
the positioning groove (8) and the positioning block (9) are both conical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921071519.3U CN209980698U (en) | 2019-07-04 | 2019-07-04 | LED dot matrix display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921071519.3U CN209980698U (en) | 2019-07-04 | 2019-07-04 | LED dot matrix display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209980698U true CN209980698U (en) | 2020-01-21 |
Family
ID=69267051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921071519.3U Expired - Fee Related CN209980698U (en) | 2019-07-04 | 2019-07-04 | LED dot matrix display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209980698U (en) |
-
2019
- 2019-07-04 CN CN201921071519.3U patent/CN209980698U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200121 Termination date: 20200704 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |