Glass panel assembly, household appliance applying glass panel assembly and household appliance defrosting method

Abstract

The invention relates to the technical field of vacuum glass, and particularly discloses a glass panel assembly, a household appliance applying the glass panel assembly and a household appliance defrosting method. The glass panel is vacuum glass, and a conductive layer for electrifying and heating is arranged on the outer surface of one side of the glass panel; conductive strips are arranged at the two side parts of the conductive layer and are used for being electrically connected with the conductive layer; the conductive strips can be connected with an external control unit through wires, and compared with heating composite vacuum glass disclosed by a patent application with the application number of 202210083388.0, the production process is simpler; meanwhile, the conducting layer is arranged on the outer side of the vacuum cavity, the mist and frost treatment efficiency can be effectively improved, and use is more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of glass electric heating, and in particular to a glass panel assembly, a household appliance using the glass panel assembly, and a household appliance defrosting method. Background Art

[0002] In order to improve user experience and aesthetics, more and more home appliance doors are using glass doors instead of traditional foam doors. Due to its excellent thermal insulation performance, vacuum glass can directly solve the problem of frost and fog on the outer surface of home appliance doors, greatly saving electricity consumption. Since the interior of home appliances is low temperature, after each opening and closing, the surface temperature of the inner glass drops rapidly and a thin layer of frost appears, affecting the user's vision.

[0003] The patent application with application number 202210083388.0 discloses a heat-generating composite vacuum glass and a method for manufacturing the same, wherein a transparent conductive layer is arranged in a vacuum cavity and connected to an insulating support member. During the production process of the vacuum glass, due to the addition of the transparent conductive layer, the lead-out of the conductive wire will affect the sealing performance of the vacuum glass, which is not conducive to the production of the vacuum glass.

[0004] When the surface of the vacuum glass is fogged or frosted, the vacuum glass of the above patent application can handle the fogging or frosting problem after heating. However, since the transparent conductive film heats the vacuum cavity and the glass substrate of the vacuum glass instead of directly heating the fog and frost, the efficiency of handling the fog and frost is low. Summary of the invention

[0005] In view of the problems existing in the prior art, an object of the present invention is to provide a glass panel assembly to solve the problem of low efficiency of the glass panel assembly in handling fog and frost in the prior art.

[0006] In order to solve the above problems, the present invention also provides a household appliance using the above glass panel assembly.

[0007] A glass panel assembly, the glass panel is vacuum glass, a conductive layer for electrical heating is arranged on the outer surface of one side of the glass panel; conductive strips are arranged on both sides of the conductive layer, the conductive strips are used to be electrically connected to the conductive layer; the conductive strips can be connected to a control unit through wires.

[0008] The vacuum glass comprises at least two glass substrates. The four peripheries of the two adjacent glass substrates are connected and sealed by sealing materials. A vacuum cavity is arranged between the two adjacent glass substrates, and a support is arranged in the vacuum cavity.

[0009] Furthermore, an insulating layer for covering the conductive strips and the conductive layer is provided on the outer side of the conductive layer.

[0010] Furthermore, the wires on both side edges of the glass panel are electrically connected to the conductive strips.

[0011] Furthermore, the conductive strip is a conductive tape or a conductive printed layer.

[0012] Furthermore, the conductive strip is provided with a connection point, and an insulating protection piece is provided at the connection point.

[0013] Furthermore, the wire and the conductive strip are fixed at the connection point by welding.

[0014] Furthermore, the conductive layer is an online Low-E film layer or an ITO film layer.

[0015] A household appliance comprises a household appliance door, a refrigerator compartment and / or a freezer compartment, wherein the household appliance door comprises a door frame and the glass panel assembly as described above, and the conductive layer faces the interior of the refrigerator compartment and / or the freezer compartment.

[0016] Furthermore, the household appliance also includes a sensing unit and a control unit. The sensing unit is arranged on a door frame, or on an inner wall of a refrigerator compartment and / or an inner wall of a freezer compartment; and the control unit is electrically connected to the sensing unit and the conductive layer, respectively.

[0017] The invention also provides a household appliance defrosting method.

[0018] A household appliance defrosting method is applied to the above-mentioned household appliance. When the household appliance door is opened or closed, the sensing unit feeds back information to the control unit. When the control unit receives the information from the sensing unit, the control unit connects the circuit with the conductive layer according to a preset control program until the glass panel assembly is heated to a preset time, and then the circuit between the control unit and the conductive layer is disconnected.

[0019] Beneficial effects: The present invention has a simple structure. Compared with the heat-generating composite vacuum glass disclosed in the patent application with application number 202210083388.0, the conductive layer of the present invention is arranged on the outside of the glass panel without affecting the sealing performance of the vacuum glass; at the same time, the conductive layer is arranged on the outside of the glass panel to directly face the fog and frost, effectively improving the efficiency of handling fog and frost, and is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the specification will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is a schematic structural diagram of a glass panel assembly in Embodiment 1 of the present invention; Figure 2 for Figure 1 Enlarged view of part A in the middle; Figure 3 This is a configuration diagram of the control system in Example 2 of the present invention.

[0022] Explanation of the reference numerals: 1. first glass substrate; 2. second glass substrate; 3. support; 4. sealing material; 5. wire; 6. power supply; 7. conductive strip; 8. insulating corner guard; 9. connection point; 10. conductive layer; 11. sensing unit; 12. control unit. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention are described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. For ease of explanation, the terms "vertical", "horizontal", "left", "right", "upper", "lower", "inner", "outer", "bottom", etc. used in this specification indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0024] It should be noted that the embodiments of the present invention and the features involved in the embodiments can be combined with each other without conflict. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0025] Example 1

[0026] like Figure 1 and Figure 2 A glass panel assembly is shown, the glass panel is a vacuum glass, the vacuum glass comprises a first glass substrate 1 and a second glass substrate 2, the first glass substrate 1 and the second glass substrate 2 are connected and sealed on all sides by a sealing material 4, a vacuum cavity is arranged between the first glass substrate 1 and the second glass substrate 2, and a support 3 is arranged in the vacuum cavity; wherein, a conductive layer 10 is laid on the side of the first glass substrate 1 away from the vacuum cavity, conductive strips 7 are arranged on both sides of the conductive layer 10, and connection points 9 for connecting with wires 5 are arranged on the conductive strips 7; the wires 5 are connected to a control unit 12, the conductive strips 7 are electrically connected to the conductive layer 10, and the conductive layer 10 is used for electrical heating. Preferably, the number of glass panels can be more than two, and the conductive layer 10 is arranged on the side of the outermost glass panel away from the vacuum cavity.

[0027] In this embodiment, the conductive layer 10 can be an online Low-E film layer or an ITO or AZO conductive film layer formed by magnetron sputtering, or a conductive coating layer formed by spraying, or a directly pasted conductive film layer or conductive silicone layer. Compared with setting the conductive layer 10 between two glass substrates and participating in the production and manufacturing of vacuum glass, setting it on the outside of the vacuum glass that has been produced can simplify the production process; at the same time, it is not necessary to set a wiring hole for connecting with the conductive layer 10 on the glass substrate or the sealing material 4 of the vacuum glass, which ensures the normal use of the vacuum glass; secondly, the conductive layer 10 is set on the outside of the vacuum glass, which can directly heat the fog or frost in contact with the conductive layer 10, avoiding the heat loss caused by indirectly treating the fog or frost through the glass substrate, and can improve the efficiency of treating fog and frost by direct heating.

[0028] The conductive strip 7 is a conductive tape or a conductive printed layer.

[0029] This embodiment uses a conductive tape, which has a simple structure and is easy to obtain to meet production needs.

[0030] A glass panel assembly further includes an insulating layer (not shown in the figure), which is disposed on the surface of the conductive layer 10 to cover the conductive layer 10 and the conductive adhesive strip and to play an insulating role.

[0031] In this embodiment, the insulating layer is an insulating coating, UV glue, PET film, silicone oil, insulating film, or thin glass; the insulating coating is connected to the conductive layer 10 by a spraying process; the UV glue, PET film, silicone oil, and insulating film are connected to the conductive layer 10 by a bonding process; the thin glass is connected to the conductive layer 10 by a lamination process. For glass panels of the same size, the thinner the insulating layer, the shorter the heating time required and the higher the defrosting efficiency. For example, when the vacuum glass substrate size is 629mm in length and 486mm in width, the heating voltage is 24V, the heating power is 55W, the temperature of the frosted side of the glass panel assembly is -25°C, the insulating layer thickness is 0.05mm, the heating time is 10min, and the insulating layer thickness is 0.1mm, the heating time is 15min.

[0032] A glass panel assembly also includes an insulating protective member and a wire 5, wherein the insulating protective member is installed at a location where a conductive strip 7 is provided on the vacuum glass to protect the edge of the vacuum glass and the conductive strip 7, and the insulating protective member is provided with a wiring hole for the conductive strip 5 to pass through near the conductive strip 7, and the conductive strip 5 is electrically connected to the conductive strip 7 via a connection point 9. The conductive strip 5 can be fixedly connected to the connection point 9 by welding.

[0033] In this embodiment, the insulating protection member can specifically be an insulating corner protector 8. The insulating corner protector 8 is provided to protect the vacuum glass and prevent the vacuum glass from being damaged; it is also used to insulate and fix the connection point 9.

[0034] Working process: The conductively heated vacuum glass is provided with a conductive layer 10 with one side facing the direction that is prone to frost or fog. Once the surface of the vacuum glass is fogged or frosted, the conductive layer 10 is electrically heated, the temperature of the insulating layer rises, the fog or frost on the insulating layer will be heated and eliminated, and the vacuum glass will return to its original state.

[0035] Example 2

[0036] A household appliance comprises a household appliance door, a refrigerator compartment and / or a freezer compartment, wherein the household appliance door comprises a door frame and a glass panel assembly, wherein the glass panel assembly is the glass panel assembly as described in Example 1, wherein the conductive layer faces the interior of the refrigerator compartment and / or the freezer compartment, and wherein the household appliance further comprises a sensing unit 11 and a control unit 12, wherein the sensing unit 11 is arranged on the door frame, or on the inner wall of the refrigerator compartment and / or the inner wall of the freezer compartment; Figure 3 As shown, the control unit 12 is electrically connected to the sensing unit 11 and the conductive layer 10 respectively, and is connected to the external power supply 6, and the conductive strip is connected to the control unit 12 of the home appliance through a wire. The home appliance includes a refrigerator, a freezer, etc. The control unit 12 is specifically a PLC controller, and the sensing unit 11 is specifically a door opening and closing sensor.

[0037] Working process: During the opening and closing of the home appliance door, the surface of the glass panel assembly is fogged or frosted. The conductive layer 10 is electrically heated, and the fog or frost on the insulating layer is heated and eliminated, and the glass panel assembly returns to its original state. The larger the size of the vacuum glass, the greater the temperature difference between the inside and outside of the home appliance, and the longer the required heating time. In this embodiment, the vacuum glass substrate size is 629mm in length and 486mm in width. The temperature inside the home appliance is -25°, the heating voltage is 65V, the current is 10A, and the heating time is 2min.

[0038] Example 3

[0039] A defrosting method for household appliances, when the door of the household appliance is closed, the sensing unit feeds back the door closing information to the control unit, when the control unit receives the information from the sensing unit, the control unit connects the circuit between the control unit and the conductive layer according to a preset control program, until the glass panel assembly is heated to a preset time, and then the circuit between the control unit and the conductive layer is disconnected. The above method can effectively remove the fog and frost on the glass panel assembly on the door of the household appliance, and improve the visibility of the goods inside the household appliance.

[0040] Example 4

[0041] The difference between this embodiment and embodiment 3 is that the sensing unit feeds back the door opening information to the control unit when the door of the home appliance is opened. When the control unit receives the information from the sensing unit, the control unit connects the circuit with the conductive layer according to a preset control program until the glass panel assembly is heated for a preset time, and then the circuit between the control unit and the conductive layer is disconnected. The above method can effectively remove the fog and frost on the glass panel assembly on the door of the home appliance and improve the visibility of the goods inside the home appliance.

[0042] Although preferred embodiments of the present invention have been described, additional changes and modifications may be made to these embodiments by those skilled in the art once the basic inventive concepts are known. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A glass panel assembly, wherein the glass panel is vacuum glass, characterized in that: A conductive layer for electrical heating is arranged on one outer surface of the glass panel; conductive strips are arranged on both sides of the conductive layer, and the conductive strips are used to be electrically connected to the conductive layer; and the conductive strips can be connected to an external control unit through a wire.

2. A glass panel assembly according to claim 1, characterized in that: An insulating layer for covering the conductive strips and the conductive layer is disposed on the outer side of the conductive layer.

3. A glass panel assembly according to claim 1 or 2, characterized in that: The conductive wires at both side edges of the glass panel are electrically connected to the conductive strips.

4. The glass panel assembly according to claim 1, characterized in that: The conductive strip is a conductive tape or a conductive printed layer.

5. A glass panel assembly according to claim 4, characterized in that: The conductive strip is provided with a connection point, and an insulating protection piece is provided at the connection point.

6. A glass panel assembly according to claim 5, characterized in that: The conductor and the conductive strip are fixed at the connection point by welding.

7. The glass panel assembly according to claim 1, characterized in that: The conductive layer is an online Low-E film layer or an ITO film layer.

8. A household appliance, characterized in that: It comprises a household appliance door, a refrigerator compartment and / or a freezer compartment, wherein the household appliance door comprises a door frame and a glass panel assembly as claimed in any one of claims 1 to 7, and the conductive layer faces the interior of the refrigerator compartment and / or the freezer compartment.

9. A household appliance according to claim 8, characterized in that: It also includes a sensing unit and a control unit. The sensing unit is arranged on a door frame, or on an inner wall of a refrigerating chamber and / or an inner wall of a freezing chamber; and the control unit is electrically connected to the sensing unit and the conductive layer respectively.

10. A household appliance defrosting method, using the household appliance as claimed in claim 9, characterized in that: When the door of the home appliance is opened or closed, the sensing unit feeds back information to the control unit. When the control unit receives the information from the sensing unit, the control unit connects the circuit between the control unit and the conductive layer according to a preset control program until the glass panel assembly is heated to a preset time, and then the circuit between the control unit and the conductive layer is disconnected.

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