LCD (Liquid Crystal Display) screen for refrigerated vending machine

Abstract

The utility model relates to the technical field of refrigerated vending machines, and discloses a liquid crystal display (LCD) screen for a refrigerated vending machine, which comprises a vending machine body, a freezing chamber and a refrigerating chamber arranged on the vending machine body, and a first display screen mounted on the freezing chamber, the first display screen comprises a first Low-E glass layer, a first tempered glass layer and an electric heating glass layer which are sequentially arranged from inside to outside, the first Low-E glass layer, the first tempered glass layer and the electric heating glass layer are sequentially bonded together, a DC heating circuit is embedded in the electric heating glass layer, a heater is arranged in the vending machine body, and the first Low-E glass layer, the first tempered glass layer and the electric heating glass layer are sequentially bonded together. The heater is electrically connected with the DC heating circuit, and the heater heats the electric heating glass layer after the DC heating circuit is electrified; according to the vending machine, the DC heating circuit is embedded in the electric heating glass layer, meanwhile, the heater is arranged in the vending machine body, and the heater is electrically connected with the DC heating circuit, so that the vending machine has the advantages that the visibility of commodities is ensured, and the display effect of the commodities is ensured.

Description

Technical Field

[0001] This utility model relates to an LCD display screen for refrigerated vending machines, belonging to the technical field of refrigerated vending machines. Background Technology

[0002] With the development of commercial automation, refrigerated vending machines have been widely used in convenience stores, supermarkets, airports, and other places. Refrigerated vending machines are mainly used to display and sell various refrigerated and frozen goods, such as beverages, dairy products, and frozen foods. To attract consumers' attention and display product information, modern refrigerated vending machines are usually equipped with LCD screens for playing advertisements, product introductions, price information, etc. However, product advertisements are not easily integrated into currently common vending machines, and because most screens are non-transparent, they can easily affect visibility. Therefore, in the prior art, Chinese utility model patent application number CN202121821859.0 discloses a transparent display door panel for an automatic vending machine and the vending machine itself. This transparent display door panel may include a door frame, a circuit board, tempered glass, and a touch-sensitive transparent display screen. The tempered glass is embedded in the door frame, the circuit board is hidden in the door frame, and the touch-sensitive transparent display screen is installed on the door frame inside the tempered glass and electrically connected to the circuit board. The use of tempered glass and a transparent touchscreen makes the entire door panel transparent, so that the actual display of the products inside the vending machine is not affected when playing advertisements, thus improving the advertising effect and user experience.

[0003] However, when used in refrigerated vending machines, the following problems arise: During operation, the glass surface of the freezer compartment is prone to fogging. This is due to the significant temperature difference between the inside and outside of the freezer; when moisture in the outside air encounters the cooler glass surface, it condenses, forming fog. Fogging severely affects the visibility of products for consumers, thus reducing the effectiveness of product display. Utility Model Content

[0004] In order to solve the above-mentioned problems existing in the prior art, this utility model provides an LCD display screen for refrigerated vending machines.

[0005] The technical solution of this utility model is as follows:

[0006] An LCD display screen for a refrigerated vending machine includes a vending machine body and a freezer compartment and a refrigerator compartment disposed on the vending machine body. It also includes a first display screen for mounting on the freezer compartment. The first display screen includes a first Low-E glass layer, a first tempered glass layer and an electrically heated glass layer disposed sequentially from the inside to the outside. The first Low-E glass layer, the first tempered glass layer and the electrically heated glass layer are bonded together in sequence. A DC heating circuit is embedded in the electrically heated glass layer. A heater is disposed in the vending machine body. The heater is electrically connected to the DC heating circuit. The heater heats the electrically heated glass layer after energizing the DC heating circuit.

[0007] The LCD display screen also includes a second display screen for mounting on the refrigerator compartment. The second display screen includes a second tempered glass layer and a second Low-E glass layer arranged sequentially from the inside to the outside, and the second tempered glass layer and the second Low-E glass layer are bonded together.

[0008] The first Low-E glass layer includes a first glass body, and the first glass body is coated with a first silver layer and a first nickel-chromium alloy layer from the inside to the outside on the sidewall away from the first tempered glass layer.

[0009] The first glass body is a hollow glass structure, and a first titanium nitride layer is coated on one side wall of the hollow structure of the first glass body.

[0010] The second Low-E glass layer includes a second glass body, and the second glass body is coated with a second silver layer and a second nickel-chromium alloy layer from the inside to the outside on the sidewall away from the second tempered glass layer.

[0011] The second glass body is a hollow glass structure, and a second titanium nitride layer is coated on one side wall of the hollow structure of the second glass body.

[0012] This utility model has the following beneficial effects:

[0013] This invention features a first display screen mounted on a freezer compartment. The first display screen comprises a first Low-E glass layer, a first tempered glass layer, and an electrically heated glass layer. A DC heating circuit is embedded within the electrically heated glass layer. Simultaneously, a heater is installed within the vending machine body, electrically connected to the DC heating circuit. When the heater operates, it energizes the DC heating circuit to heat the electrically heated glass layer. Since the electrically heated glass layer is the outermost layer directly exposed to the external environment, this effectively prevents fogging on the outer surface of the first display screen, ensuring that consumers can always clearly see the goods inside the freezer compartment. Compared to existing technologies, this invention offers advantages in guaranteeing product visibility and display quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the first display screen in this utility model;

[0016] Figure 3 This is a perspective view of the first Low-E glass layer in this invention;

[0017] Figure 4 This is a side view of the first Low-E glass layer in this invention;

[0018] Figure 5 This is a schematic diagram of the structure of the outer coating of the first glass body in this utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the inner coating of the first glass body in this utility model;

[0020] Figure 7 This is a schematic diagram of the structure of the second display screen in this utility model;

[0021] Figure 8 This is a perspective view of the second Low-E glass layer in this invention;

[0022] Figure 9 This is a side view of the second Low-E glass layer in this invention;

[0023] Figure 10 This is a schematic diagram of the structure of the outer coating of the second glass body in this utility model;

[0024] Figure 11 This is a schematic diagram of the structure of the inner coating layer of the second glass body in this utility model.

[0025] The reference numerals in the figure are as follows:

[0026] 1. Vending machine body; 2. Freezer compartment; 3. Refrigerated compartment;

[0027] 4. First display screen;

[0028] 41. First Low-E glass layer; 411. First glass body; 412. First silver layer; 413. First nickel-chromium alloy layer; 414. First titanium nitride layer;

[0029] 42. First tempered glass layer; 43. Electrically heated glass layer;

[0030] 5. Second display screen; 51. Second tempered glass layer;

[0031] 52. Second Low-E glass layer; 521. Second glass body; 522. Second silver layer; 523. Second nickel-chromium alloy layer; 524. Second titanium nitride layer;

[0032] m, the first spacer; n, the second spacer. Detailed Implementation

[0033] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0034] Example: Please refer to Figures 1-11 This embodiment provides an LCD display screen for a refrigerated vending machine, including a vending machine body 1 and a freezer compartment 2 and a refrigerator compartment 3 disposed on the vending machine body 1. It also includes a first display screen 4 for mounting on the freezer compartment 2 and a second display screen for mounting on the refrigerator compartment 3. The first display screen 4 includes a first Low-E glass layer 41, a first tempered glass layer 42, and an electrically heated glass layer 43 arranged sequentially from the inside out. The first Low-E glass layer 41, the first tempered glass layer 42, and the electrically heated glass layer 43 are bonded together in sequence. The specific thicknesses of the first Low-E glass layer 41, the first tempered glass layer 42, and the electrically heated glass layer 43 can be selected and set according to actual conditions, without specific limitations. Since refrigerated vending machines are placed in areas with high foot traffic and are prone to collisions, in this embodiment, the thickness of the first Low-E glass layer 41 is selected to be 4mm, the thickness of the first tempered glass layer 42 is selected to be 6mm, and the thickness of the electrically heated glass layer 43 is selected to be 3mm. By increasing the thickness of the first tempered glass layer 42, the first display screen 4 can have good structural strength to cope with possible collisions. The electrically heated glass layer 43 has an embedded DC heating circuit. A heater is installed inside the vending machine body 1. The heater can be installed at the door frame of the vending machine body 1 and concealed through a reserved wire groove. The heater is electrically connected to the DC heating circuit. The heater heats the electrically heated glass layer 43 after energizing the DC heating circuit. With the aforementioned setup, when the heater is working, the DC heating circuit can be energized to heat the electrically heated glass layer 43. The electrically heated glass layer 43 is the outermost glass layer that is in direct contact with the external environment. This effectively prevents fogging and other phenomena from occurring on the outer surface of the first display screen 4. That is, the water vapor adhering to the electrically heated glass layer 43 will evaporate under the action of the DC heating circuit and will not condense on the electrically heated glass layer 43, thereby ensuring that consumers can always clearly see the goods in the freezer compartment 2.

[0035] In this embodiment, the second display screen includes a second tempered glass layer 51 and a second Low-E glass layer 52 arranged sequentially from the inside out. The second tempered glass layer 51 and the second Low-E glass layer 52 are bonded together. The specific thickness of the second tempered glass layer 51 and the second Low-E glass layer 52 can be selected and set according to actual conditions and is not specifically limited. Since refrigerated vending machines are placed in areas with high personnel traffic and are prone to collisions, in this embodiment, the thickness of the second tempered glass layer 51 is selected to be 6mm, and the thickness of the second Low-E glass layer 52 is selected to be 4mm. By increasing the thickness of the second tempered glass layer 51, the second display screen can have good structural strength to cope with possible collisions.

[0036] The first Low-E glass layer 41 and the second Low-E glass layer 52 are low-emissivity glass, meaning they have good thermal insulation properties to reduce the power consumption of the refrigerated vending machine. In this embodiment, the first Low-E glass layer 41 includes a first glass body 411. A first silver layer 412 and a first nickel-chromium alloy layer 413 are sequentially deposited from the inside out on the sidewall of the first glass body 411 away from the first tempered glass layer 42. The first silver layer 412 has extremely low infrared emissivity, enabling it to efficiently reflect infrared rays, thereby significantly improving the thermal insulation performance of the first glass body 411. The first nickel-chromium alloy layer 413 effectively prevents the first silver layer 412 from oxidizing during the coating process and also improves the adhesion and stability of the film, thus increasing the stability of the function of the first Low-E glass layer 41. The second Low-E glass layer 52 includes a second glass body 521. A second silver layer 522 and a second nickel-chromium alloy layer 523 are sequentially deposited on the sidewall of the second glass body 521 away from the second tempered glass layer 51 from the inside out. The second silver layer 522 has an extremely low infrared emissivity, which can efficiently reflect infrared rays, thereby significantly improving the heat insulation performance of the second glass body 521. The second nickel-chromium alloy layer 523 can effectively prevent the second silver layer 522 from being oxidized during the coating process, and can also improve the adhesion and stability of the film layer, thereby increasing the stability of the function of the second Low-E glass layer 52. The specific thicknesses of the first silver layer 412, the first nickel-chromium alloy layer 413, the second silver layer 522, and the second nickel-chromium alloy layer 523 can be selected and set according to the actual situation. Preferably, the thickness of the first silver layer 412 and the second silver layer 522 is 10-20 nm to avoid the glass's visible light transmittance being reduced due to excessive thickness. The thickness of the first nickel-chromium alloy layer 413 and the second nickel-chromium alloy layer 523 is 5-10 nm to avoid the glass's optical performance being affected by excessive thickness.

[0037] To further reduce the power consumption of the refrigerated vending machine, in this embodiment, both the first glass body 411 and the second glass body 521 are common hollow glass structures. Specifically, the first glass body 411 can be formed by selecting two identical pieces of glass and then setting a first spacer m in a rectangular frame structure between them, thus creating a hollow structure. Similarly, the second glass body 521 can be formed by selecting two identical pieces of glass and then setting a second spacer n in a rectangular frame structure between them, thus creating a hollow structure. The hollow structure of the first glass body 411 and the second glass body 521, with its central cavity, effectively prevents heat transfer, resulting in better heat insulation and reducing the power consumption of the refrigerated vending machine. Simultaneously, to ensure the optical performance of the first glass body 411 and the second glass body 521, a first titanium nitride layer 414 is deposited on one sidewall of the hollow structure of the first glass body 411, and a second titanium nitride layer 524 is deposited on one sidewall of the hollow structure of the second glass body 521. The first titanium nitride layer 414 can adjust the optical properties of the first glass body 411 to ensure its light transmittance, and the second titanium nitride layer 524 can adjust the optical properties of the second glass body 521 to ensure its light transmittance. The specific thicknesses of the first titanium nitride layer 414 and the second titanium nitride layer 524 can be selected and set according to actual conditions, preferably 15-50 nm.

[0038] In practical use, when the first display screen 4 and the second display screen 5 are installed on the vending machine body 1, light strips can be added around the screens to enhance the visual brightness of the first display screen 4 and the second display screen 5, so as to better display the advertising information on them. The selected light strips can be resistor-free light strips in the prior art, and the power of the light strips can be adjusted by installing a constant current device to drive the power supply, so as to achieve a high brightness display of the screen image.

[0039] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An LCD display screen for a refrigerated vending machine, comprising a vending machine body (1) and a freezer compartment (2) and a refrigerator compartment (3) disposed on the vending machine body (1), characterized in that: It also includes a first display screen (4) for installation on the freezer compartment (2). The first display screen (4) includes a first Low-E glass layer (41), a first tempered glass layer (42) and an electrically heated glass layer (43) arranged sequentially from the inside to the outside. The first Low-E glass layer (41), the first tempered glass layer (42) and the electrically heated glass layer (43) are bonded together in sequence. The electrically heated glass layer (43) has a DC heating circuit embedded in it. A heater is provided in the vending machine body (1). The heater is electrically connected to the DC heating circuit. The heater heats the electrically heated glass layer (43) after energizing the DC heating circuit.

2. The LCD display screen for a refrigerated vending machine according to claim 1, characterized in that: The LCD display also includes a second display for mounting on the refrigerator compartment (3). The second display includes a second tempered glass layer (51) and a second Low-E glass layer (52) arranged sequentially from the inside to the outside. The second tempered glass layer (51) and the second Low-E glass layer (52) are bonded together.

3. The LCD display screen for a refrigerated vending machine according to claim 1, characterized in that: The first Low-E glass layer (41) includes a first glass body (411), and the first glass body (411) is coated with a second silver layer (522) (412) and a first nickel-chromium alloy layer (413) from the inside to the outside on the sidewall away from the first tempered glass layer (42).

4. The LCD display screen for a refrigerated vending machine according to claim 3, characterized in that: The first glass body (411) is a hollow glass structure, and a first titanium nitride layer (414) is coated on one side wall of the hollow structure of the first glass body (411).

5. An LCD display screen for a refrigerated vending machine according to claim 2, characterized in that: The second Low-E glass layer (52) includes a second glass body (521), on which a second silver layer and a second nickel-chromium alloy layer (523) are sequentially plated from the inside to the outside on the sidewall away from the second tempered glass layer (51).

6. The LCD display screen for a refrigerated vending machine according to claim 5, characterized in that: The second glass body (521) is a hollow glass structure, and a second titanium nitride layer (524) is coated on one side wall of the hollow structure of the second glass body (521).

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