Backlight screen connecting structure of electronic scale

Abstract

The utility model discloses a backlight screen connecting structure of an electronic scale, which comprises an upper shell, a liquid crystal screen and a backlight plate, a mounting groove is arranged on the inner surface of the upper shell, a display window penetrates through the bottom of the mounting groove, and the liquid crystal screen is arranged in the mounting groove and is matched with the mounting groove in shape; a mounting groove is formed in the upper shell, a buckle is arranged on the inner surface of the upper shell, one end of the buckle is inserted into the upper portion of the mounting groove, a fixing gap is formed between the buckle and the liquid crystal screen, the backlight plate is inserted into the fixing gap and matched with the fixing gap in a clamping mode, the backlight plate is attached to the liquid crystal screen and the buckle, and the backlight plate covers the liquid crystal screen. The liquid crystal screen and the backlight plate are respectively matched with the mounting groove, the buckle and the fixing gap in an inserting manner, so that the liquid crystal screen and the backlight plate can be quickly fixed on the upper shell, punching on the upper shell and screwing screws one by one are not needed, the convenience when the liquid crystal screen, the backlight plate and the upper shell are assembled is improved, and the production is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic scales, in particular to a connection structure of an electronic scale backlight screen. Background Art

[0002] The electronic scale backlight screen mainly includes a rectangular liquid crystal screen and a backlight board. When installing the liquid crystal screen and the backlight board on the electronic scale, generally a rectangular groove is opened on the scale body, and the liquid crystal screen and the backlight board are placed in the rectangular groove in the direction from the inside to the outside. Then, the backlight board is fixed on the scale body through fasteners such as screws and the backlight board is pressed on the liquid crystal screen. Since holes need to be drilled in the scale body to fix the screws, the fixing efficiency and convenience of the electronic scale backlight screen are affected. Therefore, improvement is needed. Summary of the Invention

[0003] Aiming at the defects in the prior art that the connection structure of the electronic scale backlight screen in the prior art uses screws for fixing, which affects the fixing efficiency and requires drilling holes in the scale body, etc., the utility model provides a new connection structure of the electronic scale backlight screen.

[0004] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0005] A connection structure of an electronic scale backlight screen includes an upper shell, a liquid crystal screen and a backlight board. An installation groove is opened on the inner surface of the upper shell, and a display window penetrates through the bottom of the installation groove. The liquid crystal screen is placed in the installation groove and is adapted to the shape of the installation groove; a buckle is arranged on the inner surface of the upper shell. One end of the buckle is inserted above the installation groove, and a fixing gap is formed between the buckle and the liquid crystal screen. The backlight board is inserted into the fixing gap and is engaged in a clamping manner. The backlight board is attached to the liquid crystal screen and the buckle, and the backlight board covers the liquid crystal screen.

[0006] The liquid crystal screen and the backlight board are respectively inserted and matched with the installation groove, the buckle and the fixing gap, so that the liquid crystal screen and the backlight board can be quickly fixed on the upper shell without drilling holes on the upper shell and screwing the screws one by one, improving the convenience during the assembly of the liquid crystal screen, the backlight board and the upper shell and facilitating the production.

[0007] Preferably, the connection structure of the electronic scale backlight screen further includes a main board arranged in the upper shell. A limiting notch is opened on the inner side wall of the liquid crystal screen close to the main board, and a conductive adhesive is arranged in the limiting notch. One end of the main board is located above the installation groove and is inserted into the limiting notch. The end of the main board abuts against the inner side wall of the limiting notch, and the lower surface of the main board is attached to the conductive adhesive.

[0008] Through the mutual cooperation of the main board, the limiting notch and the conductive adhesive, not only the electrical connection between the main board and the liquid crystal screen is realized, but also the limiting of the liquid crystal screen in the height direction is realized, improving the stability of the liquid crystal screen installed in the installation groove.

[0009] Preferably, in an electronic scale backlight screen connection structure as described above, positioning posts are provided on the inner surface of the upper shell, the installation grooves are distributed between the main board and the positioning posts, and both ends of the backlight board are respectively attached to the end of the main board and the positioning posts.

[0010] On the one hand, the positioning posts realize the precise limiting of the placement position of the backlight board, and on the other hand, through the main board and the positioning posts, the horizontal limiting of the backlight board is realized, further improving the stability and convenience during the installation of the backlight board.

[0011] Preferably, in an electronic scale backlight screen connection structure as described above, a plurality of buckles are provided, the buckles are evenly distributed on both sides of the installation groove, and the width of the lower end of the buckle is greater than the width of the upper end of the buckle.

[0012] The width of the lower end of the buckle being greater than the width of the upper end of the buckle improves the structural strength of the buckle. Through a plurality of buckles, multi-point fixing of the backlight board is realized, further improving the stability of the backlight board.

[0013] Preferably, in an electronic scale backlight screen connection structure as described above, a sealing ring is provided in the installation groove, and the sealing ring is attached to the outer surface of the liquid crystal screen.

[0014] The setting of the sealing ring improves the stability of the liquid crystal screen installed in the installation groove on the one hand, and improves the sealing and dust prevention between the display window and the liquid crystal screen on the other hand.

[0015] Preferably, in an electronic scale backlight screen connection structure as described above, an embedding groove is formed on the inner side wall of the installation groove, the sealing ring is arranged in the embedding groove, and the end of the sealing ring protrudes from the embedding groove and is attached to the outer surface of the liquid crystal screen.

[0016] The embedding groove realizes the fixation of the sealing ring, improves the stability of the sealing ring, and further improves the stability at the joint between the sealing ring and the liquid crystal screen. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 is a schematic structural diagram of the present invention showing the display window;

[0019] Figure 3 is a partial explosion of the present invention;

[0020] Figure 4 This is a cross-sectional view of the present utility model. Specific embodiments

[0021] The following combines the appended Figures 1-4 drawings and specific embodiments to further describe the present utility model in detail, but they do not limit the present utility model:

[0022] Embodiment 1

[0023] As shown in Figures 1-4 the figure, an electronic scale backlight screen connection structure includes an upper shell 1, a liquid crystal screen 2 and a backlight panel 3. An installation groove 4 is formed on the inner surface of the upper shell 1, and a display window 5 penetrates through the bottom of the installation groove 4. The liquid crystal screen 2 is placed in the installation groove 4 and is adapted to the shape of the installation groove 4. A buckle 6 is arranged on the inner surface of the upper shell 1. One end of the buckle 6 is inserted above the installation groove 4, and a fixed gap 7 is formed between the buckle 6 and the liquid crystal screen 2. The backlight panel 3 is inserted into the fixed gap 7 and is engaged in a snap-fit manner. The backlight panel 3 is in contact with the liquid crystal screen 2 and the buckle 6, and the backlight panel 3 covers the liquid crystal screen 2.

[0024] Preferably, it further includes a main board 8. The main board 8 is arranged in the upper shell 1. A limit notch 20 is formed on the inner side wall of the liquid crystal screen 2 close to the main board 8. A conductive adhesive 200 is arranged in the limit notch 20. One end of the main board 8 is located above the installation groove 4 and is inserted into the limit notch 20. The end of the main board 8 abuts against the inner side wall of the limit notch 20, and the lower surface of the main board 8 is in contact with the conductive adhesive 200.

[0025] Preferably, positioning posts 11 are arranged on the inner surface of the upper shell 1. The installation grooves 4 are distributed between the main board 8 and the positioning posts 11. Both ends of the backlight panel 3 are respectively in contact with the end of the main board 8 and the positioning posts 11.

[0026] Preferably, the number of the buckles 6 is multiple, and the buckles 6 are evenly distributed on both sides of the installation groove 4. The width of the lower end of the buckle 6 is greater than the width of the upper end of the buckle 6.

[0027] Preferably, a sealing ring 9 is arranged in the installation groove 4, and the sealing ring 9 is in contact with the outer surface of the liquid crystal screen 2.

[0028] Preferably, an embedding groove 41 is formed on the inner side wall of the installation groove 4. The sealing ring 9 is arranged in the embedding groove 41, and the end of the sealing ring 9 protrudes from the embedding groove 41 and is in contact with the outer surface of the liquid crystal screen 2.

[0029] Specifically, in the embodiment of the present application, two positioning posts 11 are provided. The positioning posts 11 and the main board 8 are respectively distributed at both ends of the installation groove 4 in the length direction. Four buckles 6 are provided and evenly distributed on both sides of the installation groove 4 in the width direction. The number of the positioning posts 11 and the buckles 6 can be increased or decreased according to the size of the installation groove 4. The embedding groove 41 and the sealing ring 9 are rectangular. The sealing ring 9 is inserted into the embedding groove 41 and the sealing ring 9 protrudes from the embedding groove 41.

[0030] More specifically, when installing the liquid crystal display screen 2 and the backlight panel 3 on the upper shell 1, first insert the liquid crystal display screen 2 into the installation groove 4 and make the side of the liquid crystal display screen 2 with the limit notch 20 face inward. Then insert the backlight panel 3 into the fixing gap 7 from the side close to the limit notch 20. When the end of the backlight panel 3 abuts against the positioning post 11, the backlight panel 3 is installed in place. Finally, fix the main board 8 in the upper shell 1 and make one end of the main board 8 inserted into the limit notch 20. At this time, the lower surface of the main board 8 is in contact with the conductive adhesive 200, realizing the electrical connection between the liquid crystal display screen 2 and the main board 8, completing the assembly of the upper shell 1, the liquid crystal display screen 2, and the backlight panel 3, and improving the installation efficiency of the backlight screen of the electronic scale.

[0031] In summary, the above are only the preferred embodiments of the present invention. All equivalent changes and modifications made within the scope of the patent application of the present invention shall fall within the scope covered by the present invention.

Claims

1. An electronic scale backlight screen connection structure, comprising an upper shell (1), a liquid crystal screen (2) and a backlight plate (3), characterized in that: The inner surface of the upper shell (1) is provided with a mounting groove (4), the bottom of the mounting groove (4) is penetrated with a display window (5), the liquid crystal screen (2) is placed in the mounting groove (4) and is adapted to the shape of the mounting groove (4); the inner surface of the upper shell (1) is provided with a buckle (6), one end of the buckle (6) is inserted into the top of the mounting groove (4), a fixed gap (7) is formed between the buckle (6) and the liquid crystal screen (2), the backlight panel (3) is inserted into the fixed gap (7) and is snap-fitted, the backlight panel (3) is fitted with the liquid crystal screen (2) and the buckle (6), and the backlight panel (3) covers the liquid crystal screen (2).

2. The electronic scale backlight screen connection structure according to claim 1, characterized in that: The invention also comprises a main board (8), wherein the main board (8) is arranged in the upper shell (1), a limiting notch (20) is provided on the inner side wall of the liquid crystal screen (2) close to the main board (8), a conductive adhesive (200) is arranged in the limiting notch (20), one end of the main board (8) is located above the mounting groove (4) and inserted into the limiting notch (20), the end of the main board (8) abuts against the inner side wall of the limiting notch (20), and the lower surface of the main board (8) is in contact with the conductive adhesive (200).

3. The electronic scale backlight screen connection structure according to claim 2, characterized in that: The inner surface of the upper shell (1) is provided with a positioning column (11), the mounting groove (4) is distributed between the main board (8) and the positioning column (11), and the two ends of the backlight panel (3) are respectively attached to the end of the main board (8) and the positioning column (11).

4. The electronic scale backlight screen connection structure according to claim 1, characterized in that: The number of the buckles (6) is multiple, and the buckles (6) are evenly distributed on both sides of the installation groove (4), and the width of the lower end of the buckle (6) is greater than the width of the upper end of the buckle (6).

5. The electronic scale backlight screen connection structure according to claim 1, characterized in that: A sealing ring (9) is arranged in the installation groove (4), and the sealing ring (9) is in contact with the outer surface of the liquid crystal screen (2).

6. The electronic scale backlight screen connection structure according to claim 5, characterized in that: An embedding groove (41) is provided on the inner side wall of the installation groove (4), the sealing ring (9) is arranged in the embedding groove (41), and the end of the sealing ring (9) protrudes from the embedding groove (41) and abuts against the outer surface of the liquid crystal screen (2).

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