Electronic price tag
By setting up a light-transmitting area on the inside of the front housing of the electronic price tag and arranging micro-holes in the array, the problem of poor light-transmitting effect of the existing electronic price tag light-guiding method is solved, and good light-transmitting effect is achieved and simplified structure to improve display quality and applicability.
Patent Information
- Application Number
- CN202421203891.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-29
AI Technical Summary
The existing electronic price tag light guide method has problems such as poor light transmission effect, complex structure and installation, high cost and poor applicability.
A light-transmitting area is provided on the inner side of the front housing, and a plurality of light-transmitting holes penetrating through the front housing are arranged in an array in the light-transmitting area. The aperture of the light-transmitting hole is 0.05mm-0.5mm, except for the light-transmitting area on the front housing None of them are light-transmitted.
It achieves a good light transmission effect, avoids halos or light and dark unevenness caused by light scattering, improves the display quality of electronic price tags, and simplifies the structure, reduces costs, and enhances applicability.
Smart Images
Figure CN222462077U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electronic products, in particular to an electronic price tag. Background Art
[0002] An electronic price tag is an electronic display device with information receiving and sending functions. It is mainly used in supermarkets, convenience stores, pharmacies and other electronic labels that display price information. An indicator light is set on the electronic price tag to display the different sales status of the product (such as promotion, low inventory, etc.). The light guide method of the electronic price tag usually adopts lens light guide or light guide column light guide. Among them, the lens light guide method generally does not block the position of the lamp hole of the transparent lens, and transmits the light through the exposed LED lamp beads to the lens to achieve the light guide effect; the light guide column light guide method usually fixes the transparent light guide column on the main shell (opaque), and the bottom surface of the light guide column contacts the LED lamp beads, and transmits the light source through the light guide column itself, thereby achieving the light guide effect.
[0003] However, both of the above two light guide methods have their own disadvantages:
[0004] Lens light guide: This light guide method is mainly suitable for electronic price tags with transparent front covers, and the screen display area and the light hole area are not blocked. However, the front cover is made of transparent material, and the light is easily scattered. In a dark environment, there will be a halo or uneven brightness, which affects the display of product information on the electronic price tag and the user experience is not good.
[0005] Light guiding by light guide column: This light guiding method is mainly suitable for electronic price tags with front covers made of opaque materials. A hole needs to be dug in the area on the front cover opposite to the LED light, and then the light guide column is assembled and fixed to the shell. Not only is the structure complex, but the production cost is high and the applicability is poor.
[0006] Therefore, it is urgent to propose an electronic price tag to solve the above problems. Utility Model Content
[0007] The utility model aims to provide an electronic price tag, which can solve the problem of poor light transmission effect of lens light guide in the prior art, and can also solve the problem of complex installation, high cost and poor applicability of light guide column light guide structure.
[0008] To achieve this purpose, the utility model adopts the following technical solutions:
[0009] An electronic price tag comprises a front shell, wherein a light-transmitting area is provided on the inner side surface of the front shell corresponding to an indicator light, wherein a plurality of light-transmitting holes penetrating the front shell are arranged in an array in the light-transmitting area, wherein the aperture of the light-transmitting holes is 0.05 mm-0.5 mm, and the portion of the front shell other than the light-transmitting area is opaque.
[0010] As a preferred technical solution for the electronic price tag, the distance between two adjacent light-transmitting holes is 0.05 mm-0.5 mm.
[0011] As a preferred technical solution for the electronic price tag, a first groove is provided at the light-transmitting area on the inner end surface of the front shell, and the light-transmitting hole is located at the bottom of the first groove.
[0012] As a preferred technical solution for the electronic price tag, a second groove is provided on the outer end surface of the front shell, and the light-transmitting hole passes through the bottom of the first groove and the second groove.
[0013] As a preferred technical solution of the electronic price tag, the inner side wall of the first groove is trapezoidal; and / or,
[0014] The inner side wall of the second groove is trapezoidal.
[0015] As a preferred technical solution for the electronic price tag, the bottom wall of the first groove and the bottom wall of the second groove are 0.4 mm-1.0 mm apart.
[0016] As a preferred technical solution for the electronic price tag, the light-transmitting hole is formed by laser drilling.
[0017] As a preferred technical solution for the electronic price tag, the laser passes through from the inside of the front shell to the outside of the front shell.
[0018] As a preferred technical solution of the electronic price tag, the electronic price tag further includes a screen module, the screen module is attached to the inner side of the front shell, and the indicator light is located at a position corresponding to the screen module and the light-transmitting area.
[0019] Beneficial effects of the utility model:
[0020] The electronic price tag provided by the utility model includes a front shell body, and a light-transmitting area is provided on the inner side surface of the front shell body corresponding to the position of the indicator light. A plurality of light-transmitting holes penetrating the front shell body are arranged in an array in the light-transmitting area, and light is conducted out through the light-transmitting holes arranged in an array in the light-transmitting area. The aperture of the light-transmitting hole is 0.05mm-0.5mm, and the micro-hole setting can meet both the light-transmitting effect and the concealment requirement. Except for the light-transmitting area, the parts of the front shell body are not light-transmitting, so as to prevent the scattering of light and cause the occurrence of halo or uneven brightness, thereby preventing the display of product information on the electronic price tag from being affected.
[0021] In addition, the light-transmitting holes are directly set in the light-transmitting area of the front shell, which is equivalent to the light-transmitting component of the electronic price tag being integrally formed with the front shell, with a simple structure and simple processing. And by directly processing the light-transmitting holes arranged in an array, there is no need to add a separate light-guiding component for light transmission, which reduces costs and has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a schematic diagram of the inner side of the front housing of the electronic price tag provided by an embodiment of the utility model;
[0023] Figure 2 This is a schematic diagram of the outer side of the front housing of the electronic price tag provided by an embodiment of the utility model;
[0024] Figure 3 This is a schematic diagram of the light-transmitting area inside the front shell of the electronic price tag provided by the embodiment of the utility model before laser drilling;
[0025] Figure 4 It is a schematic diagram of the light-transmitting area on the inner side of the front shell of the electronic price tag provided by the embodiment of the utility model after laser drilling.
[0026] In the figure:
[0027] 100, front housing; 101, first groove; 102, second groove; 103, light-transmitting hole. DETAILED DESCRIPTION
[0028] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.
[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0031] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.
[0032] The electronic price tag provided in this embodiment can not only solve the problem of poor light transmission effect of lens light guide in the prior art, but also solve the problem of complex installation, high cost and poor applicability of the light guide column light guide structure.
[0033] Specific as Figure 1-Figure 4 As shown, the electronic price tag includes a front shell 100, and a light-transmitting area is provided on the inner side surface of the front shell 100 corresponding to the position of the indicator light. A plurality of light-transmitting holes 103 penetrating the front shell 100 are arranged in an array in the light-transmitting area, and the light of the indicator light is transmitted through the light-transmitting holes 103 arranged in an array in the light-transmitting area. The aperture of the light-transmitting hole 103 is 0.05mm-0.5mm, and the micro-hole setting can meet both the light-transmitting effect and the concealment requirements. Except for the light-transmitting area, the front shell 100 is not light-transmitting to prevent the scattering of light, resulting in halo or uneven brightness, thereby preventing the display of product information on the electronic price tag from being affected.
[0034] In addition, the light-transmitting holes 103 are directly set in the light-transmitting area of the front housing 100, which is equivalent to the light-transmitting component of the electronic price tag being integrally formed with the front housing 100, with a simple structure and simple processing. And by directly processing the light-transmitting holes 103 arranged in an array for light transmission, there is no need to add a separate light-guiding component for light transmission, which reduces costs and has strong applicability.
[0035] Furthermore, the distance between two adjacent light-transmitting holes 103 is 0.05 mm-0.5 mm, so that the light-transmitting holes 103 are densely arranged, thereby increasing the light-transmitting effect of the light-transmitting area of the front housing 100 .
[0036] For example, the aperture of the light-transmitting hole 103 may be 0.05 mm, 0.15 mm, 0.30 mm, 0.45 mm, etc.; the distance between two adjacent light-transmitting holes 103 may be 0.10 mm, 0.20 mm, 0.30 mm, 0.40 mm, 0.50 mm, etc. By controlling the aperture size and the value of the hole spacing, the amount of light passing through the front housing 100 is controlled. At the same time, the arrangement of the light-transmitting holes 103 may also be defined to control the pattern displayed by the light passing through the front housing 100.
[0037] Further, continue as Figure 1As shown, a first groove 101 is provided at the light-transmitting area of the inner end surface of the front housing 100, and the light-transmitting hole 103 is located at the bottom of the first groove 101. The provision of the first groove 101 can reduce the thickness of the front housing 100 in the light-transmitting area, and can make part of the light that does not enter the light-transmitting hole 103 but enters between the two light-transmitting holes 103 pass through the front housing 100 and emit out, thereby increasing the light transmittance of the light-transmitting area. Moreover, the light-transmitting area of the front housing 100 is relatively thin, which is also conducive to drilling. In addition, the provision of the first groove 101 can make the plane of the light-transmitting area of the front housing 100 closer to the outside, thereby making it easier to see the lighting effect of the light-transmitting area from the outer side of the front housing 100.
[0038] In order to increase the light transmittance of the light-transmitting area, simplify the punching of the light-transmitting hole 301, and improve the light effect, the depth of the first groove 101 can be increased. However, if the depth of the first groove 101 is too deep, the distance between the light-transmitting area and the indicator light (i.e., the light source) will be too far, which will reduce the light transmission effect of the front housing 100. As a preferred technical solution, continue as follows Figure 2 As shown, the outer end surface of the front housing 100 is provided with a second groove 102, and the light-transmitting hole 103 runs through the bottom of the first groove 101 and the second groove 102, which can further increase the light transmittance of the light-transmitting area and make drilling easier.
[0039] In this embodiment, the distance between the bottom wall of the first groove 101 and the bottom wall of the second groove 102 is 0.4 mm-1.0 mm. For example, the distance between the bottom wall of the first groove 101 and the bottom wall of the second groove 102 can be 0.4 mm, 0.6 mm, 0.8 mm, or 1.0 mm.
[0040] It should be noted that, in general, the front housing 100 is formed by injection molding. In order to make the plastic of the front housing 100 more fluid during the mold injection molding stage to reduce appearance defects such as shrinkage and thinness at the back, in some embodiments, the inner side wall of the first groove 101 is trapezoidal, and the second groove 102 is other structural forms; in some other embodiments, the first groove 101 is other structural forms, and the inner side wall of the second groove 102 is trapezoidal; in this embodiment, the inner side walls of the first groove 101 and the second groove 102 are both trapezoidal.
[0041] In particular, the inner side wall of the first groove 101 is trapezoidal, which means that the radial dimension of the groove of the first groove 101 is larger as it approaches the inner side of the front housing 100, and the radial dimension of the groove is smaller as it moves outward away from the inner side of the front housing 100 (or moves outward closer to the outer side of the front housing 100). The inner side wall of the second groove 102 is trapezoidal, which means that the radial dimension of the groove of the second groove 102 is larger as it moves outward closer to the outer side of the front housing 100, and the radial dimension of the groove is smaller as it moves inward away from the outer side of the front housing 100 (or moves inward closer to the outer side of the front housing 100). Of course, in order to further improve the fluidity of the plastic of the front housing 100 during the mold injection stage, the trapezoidal shapes of the inner side walls of the first groove 101 and the second groove 102 are both formed by slow transition.
[0042] In this embodiment, the openings of the first groove 101 and the second groove 102 are elliptical, which can improve the fluidity of the plastic.
[0043] It is worth noting that since the aperture of the light-transmitting hole 103 and the distance between two adjacent light-transmitting holes 103 are 0.05 mm-0.5 mm, it is difficult to form micro-holes such as the light-transmitting hole 103 by injection molding. Preferably, the light-transmitting hole 103 is formed by laser drilling. It is also possible to optimize the light-transmitting effect of the front housing 100 while ensuring the cost and ensuring the aesthetic appearance of the front housing 100. Figure 3 The figure shows the schematic diagram before laser drilling. Figure 4 The figure shows the schematic diagram after laser drilling.
[0044] Furthermore, the laser passes through from the inner side of the front housing 100 to the outer side of the front housing 100 , and the light incident surface is the inner side of the front housing 100 , which can greatly reduce the charred defects caused by laser burning on the appearance surface of the front housing 100 .
[0045] The electronic price tag also includes a screen module, which is attached to the inner side of the front housing 100 , and the indicator light is located at a position corresponding to the screen module and the light-transmitting area.
[0046] In some embodiments, the screen module includes a screen, a flexible circuit board (FPC) and a printed circuit board (PCB), the control circuit of the screen is arranged on the PCB, and the commodity information displayed on the screen module is controlled through the electrical connection of the flexible circuit board. In some other embodiments, the screen module includes a screen and a flexible circuit board (FPC), and the control circuit of the screen is directly arranged on the flexible circuit board. The present utility model does not limit the structure of the screen module.
[0047] In addition, there are multiple locations for setting the indicator light on the screen module. For example, the indicator light can be set on the screen, on a flexible printed circuit (FPC), or on a PCB board, and the present invention does not limit this.
[0048] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.
Claims
1. An electronic price tag, characterized in that: The invention comprises a front shell (100), wherein a light-transmitting area is provided on the inner side surface of the front shell (100) at a position corresponding to the indicator light, wherein a plurality of light-transmitting holes (103) penetrating the front shell (100) are arranged in an array in the light-transmitting area, wherein the aperture of the light-transmitting holes (103) is 0.05 mm to 0.5 mm, and the parts of the front shell (100) other than the light-transmitting area are not light-transmitting.
2. The electronic price tag according to claim 1, characterized in that: The distance between two adjacent light-transmitting holes (103) is 0.05 mm-0.5 mm.
3. The electronic price tag according to claim 1, characterized in that: A first groove (101) is provided at the light-transmitting area on the inner side surface of the front housing (100), and the light-transmitting hole (103) is located at the bottom of the first groove (101).
4. The electronic price tag according to claim 3, characterized in that: The outer side surface of the front housing (100) is provided with a second groove (102), and the light-transmitting hole (103) passes through the bottom of the first groove (101) and the second groove (102).
5. The electronic price tag according to claim 4, characterized in that: The inner side wall of the first groove (101) is trapezoidal; and / or, The inner side wall of the second groove (102) is trapezoidal.
6. The electronic price tag according to claim 4, characterized in that: The bottom wall of the first groove (101) and the bottom wall of the second groove (102) are 0.4 mm to 1.0 mm apart.
7. The electronic price tag according to claim 1, characterized in that: The light-transmitting hole (103) is formed by laser drilling.
8. The electronic price tag according to claim 7, characterized in that: The laser passes from the inside of the front housing (100) to the outside of the front housing (100).
9. The electronic price tag according to claim 1, characterized in that: The electronic price tag also includes a screen module, which is attached to the inner side of the front housing (100), and the indicator light is located at a position corresponding to the screen module and the light-transmitting area.