Light-emitting display module and door body thereof

Abstract

The utility model discloses a light-emitting display module and a door body thereof, and belongs to the technical field of household appliance display, the light-emitting display module comprises a PCB and an LED lamp, the front end face of the PCB is a light face, the rear back face of the PCB is covered with a copper plate and forms a connecting circuit, the PCB is provided with a PCB through hole corresponding to the LED lamp in a front-back penetrating mode, the LED lamp is located on the rear back face of the PCB, arranged on the PCB through hole and connected with the connecting circuit in a matched mode, and the LED lamp is connected with the connecting circuit. The LED lamp emits light towards the front end face of the PCB through the PCB through hole. The front end face of the PCB of the structure is the smooth face, and only the back face of the PCB is covered with the copper plate and connected with the LED lamp, so that the production and processing technology can be effectively simplified, the material cost is reduced, the LED lamp can emit light towards the front end face of the PCB through the through hole of the PCB in the working process, the problem that the light emitting amount of the LED lamp is consumed due to shielding can be solved, and the light emitting display effect of the LED lamp is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliance display, in particular to a light-emitting display module and a door body thereof. Background Technique

[0002] The LED light-emitting display module is a flat display module with LED as the light source, which has the characteristics of high brightness, small volume, fast response speed, low driving voltage, energy conservation and environmental protection, long service life, etc., and is widely used in various household appliances.

[0003] At present, the existing LED light-emitting display modules mainly include a PCB circuit board, circuit pins, and LED light-emitting chips. Among them, the PCB circuit board is a double-sided circuit board, which is covered with copper plates on both the front and back to make connection circuits, and then several circuit pins are fixed on the connection circuits on the front and back of the double-sided circuit board by mechanical stamping. Subsequently, the electrodes of the LED chips are connected to the electrodes on the front and back of the double-sided circuit board by ultrasonic welding technology. For example, a transparent LED full-color display screen disclosed in the utility model patent with Chinese patent number CN201720211573.8, a cooking appliance disclosed in the utility model patent with Chinese patent number CN201721272394.1, etc.

[0004] However, since the PCB circuit board is set in the way of combining two copper-clad plates, its production process has many procedures and high material costs. Therefore, it is necessary to further improve. Content of the Utility Model

[0005] The utility model aims to provide a light-emitting display module and a door body thereof to overcome the deficiencies in the prior art.

[0006] A light-emitting display module designed according to this purpose includes a PCB board and LED lights. The front end face of the PCB board is a smooth surface, and the back end face is covered with a copper plate to form a connection circuit. The PCB board is penetrated through by PCB board through holes corresponding to the LED lights. The LED lights are located on the back end face of the PCB board and are arranged on the PCB board through holes, and are cooperatively connected with the connection circuit. The LED lights emit light toward the front end face of the PCB board through the PCB board through holes.

[0007] The LED lights are surface-mounted LEDs and are mounted on the PCB board through holes.

[0008] A plurality of the LED lights are provided, and a plurality of the PCB board through holes are provided, and the number thereof corresponds to the number of the LED lights.

[0009] A plurality of the LED lights and a plurality of the PCB board through holes are arranged in a dot matrix and correspond to each other one by one.

[0010] A lamp shade member is provided on the front end face of the PCB board, and a lamp shade member through hole penetrates through the lamp shade member corresponding to the through hole of the PCB board before and after.

[0011] A plurality of the lamp shade member through holes are provided, and the plurality of lamp shade member through holes are arranged at intervals vertically and horizontally or in a dot matrix corresponding to the plurality of through holes of the PCB board.

[0012] The lamp shade member through hole is provided with a horizontally linear through setting before and after, or the lamp shade member through hole is provided with a through setting that expands outward away from the PCB board before and after.

[0013] The lamp shade member and the PCB board are fixed to each other by snap connection, or fasteners, or pasting.

[0014] A door body includes a front panel, a rear cover plate, and the above-mentioned light-emitting display module. A light-emitting display area is provided on the front panel. The front panel and the rear cover plate are fixed to each other, and a door body cavity is formed between the two. The light-emitting display module is located in the door body cavity and behind the light-emitting display area. The PCB board is fixed to the front panel or the rear cover plate.

[0015] The front panel and the rear cover plate are fixed to each other by snap connection, or fasteners, or pasting. The PCB board is fixed on the front panel by snap connection, or fasteners, or pasting. The front end face of the lamp shade member leans against the back side of the light-emitting display area.

[0016] In the present utility model, only a copper plate is covered on the back side of the PCB board, and a connection circuit is formed by using the copper plate. Subsequently, the LED lamp is placed on the back side of the PCB board and the through hole of the PCB board, and then the LED lamp is connected to the connection circuit in cooperation to complete the setting of the light-emitting display module. Since the front end face of the PCB board is a smooth surface and only a copper plate is covered on its back side, the production and processing process can be effectively simplified, the material cost can be reduced, and the LED lamp can emit light toward the front end face of the PCB board through the through hole of the PCB board during operation, which can avoid the problem of light loss of the LED lamp caused by occlusion and ensure the light-emitting display effect of the LED lamp. Description of the Drawings

[0017] Figure 1 It is a schematic assembly structure diagram of the light-emitting display module and the door body according to an embodiment of the present utility model.

[0018] Figure 2 It is a schematic assembly structure diagram of the light-emitting display module and the door body from another perspective according to an embodiment of the present utility model.

[0019] Figure 3 It is a schematic sectional assembly structure diagram of the light-emitting display module and the door body according to an embodiment of the present utility model.

[0020] Figure 4For Figure 3 The enlarged structural schematic diagram at position I in

[0021] Figure 5 The exploded structural schematic diagram of the light-emitting display module and the door body according to an embodiment of the present utility model.

[0022] Figure 6 The exploded structural schematic diagram of the light-emitting display module and the door body from another perspective according to an embodiment of the present utility model.

[0023] Figure 7 The exploded structural schematic diagram of the light-emitting display module according to an embodiment of the present utility model.

[0024] Figure 8 The exploded structural schematic diagram of the light-emitting display module from another perspective according to an embodiment of the present utility model. Detailed implementation manners

[0025] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific implementation manners of the present utility model with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0026] The present utility model will be further described below with reference to the accompanying drawings and embodiments.

[0027] Refer to Figures 1-8 , this light-emitting display module includes a PCB board 19 and an LED lamp 20. The front end face of the PCB board 19 is a smooth surface, and the back end face is covered with a copper plate to form a connection circuit. The PCB board 19 is provided with a PCB board through hole 21 penetrating through the front and back corresponding to the LED lamp 20. The LED lamp 20 is located on the back end face of the PCB board 19 and is arranged on the PCB board through hole 21, and is cooperatively connected with the connection circuit. The LED lamp 20 emits light toward the front end face of the PCB board 19 through the PCB board through hole 21.

[0028] In this embodiment, only the back end face of the PCB board 19 is covered with a copper plate, and the copper plate is used to form a connection circuit. Then, the LED lamp 20 is placed on the back end face of the PCB board 19 and the PCB board through hole 21, and then the LED lamp 20 is cooperatively connected with the connection circuit, thereby completing the setting of the light-emitting display module. Since the front end face of the PCB board 19 is a smooth surface and only the back end face is covered with a copper plate, the production and processing process can be effectively simplified, the material cost can be reduced, and the LED lamp 20 can emit light toward the front end face of the PCB board 19 during operation, which can avoid the problem of light loss of the LED lamp 20 caused by occlusion and ensure the light-emitting display effect of the LED lamp 20.

[0029] The LED lamp 20 is a surface-mounted LED and is mounted on the through-hole 21 of the PCB board.

[0030] In this embodiment, since the LED lamp 20 is a surface-mounted LED, when it is mounted on the through-hole 21 of the PCB board, there are no solder joints and components, and no insulation protection treatment is required. The LED lamp 20 is directly mounted on the through-hole 21 of the PCB board, there is no hidden danger of circuit short circuit, it is safe to use, and the production cost is low. In addition, when the LED lamp 20 emits light through the through-hole 21 of the PCB board, it has a large light-emitting angle, a wide irradiation range, high brightness, good heat dissipation, long life, and low cost, which can greatly improve the light-emitting display effect.

[0031] A plurality of LED lamps 20 are provided, and a plurality of through-holes 21 of the PCB board are provided, and the number thereof corresponds to the number of LED lamps 20.

[0032] A plurality of LED lamps 20 and a plurality of through-holes 21 of the PCB board are arranged in a dot matrix and correspond to each other one by one.

[0033] In this embodiment, different LED lamps 20 are located on the corresponding through-holes 21 of the PCB board, which can ensure that each LED lamp 20 emits light on its respective through-hole 21 of the PCB board.

[0034] A lamp cover member 22 is provided on the front end surface of the PCB board 19, and the lamp cover member 22 is provided with a lamp cover through-hole 23 penetrating through the front and back corresponding to the through-hole 21 of the PCB board.

[0035] In this embodiment, the setting of the lamp cover member 22 can facilitate the light irradiation of the LED lamp 20, and the light emitted by the LED lamp 20 during operation is sequentially irradiated to the through-hole 21 of the PCB board and the lamp cover through-hole 23.

[0036] A plurality of lamp cover through-holes 23 are provided, and the plurality of lamp cover through-holes 23 are arranged at vertical and horizontal intervals or in a dot matrix corresponding to the plurality of through-holes 21 of the PCB board.

[0037] In this embodiment, the lamp cover through-hole 23 is strip-shaped and a plurality of them are provided. The plurality of strip-shaped lamp cover through-holes 23 are arranged at vertical and horizontal intervals and form the number 88, so that the light of the LED lamp 20 is used for quantity display through the lamp cover through-hole 23.

[0038] The lamp cover through-hole 23 is provided with a horizontally linear through-hole from front to back, or the lamp cover through-hole 23 is provided with a through-hole that expands outward away from the PCB board 19 from front to back.

[0039] In this embodiment, when the through-hole 23 of the lamp cover member is horizontally linearly arranged and penetrates from front to back, the light of the LED lamp 20 can be irradiated horizontally linearly, making the light irradiation more concentrated; when the through-hole 23 of the lamp cover member is arranged to penetrate from front to back and expand outward away from the PCB board 19, the light of the LED lamp 20 can be irradiated in an outwardly expanding manner, making the light irradiation range larger.

[0040] The lamp cover member 22 and the PCB board 19 are fixed to each other by snap connection, or fasteners, or pasting.

[0041] In this embodiment, a lamp cover member snap portion is provided on the lamp cover member 22, and a PCB board snap mating portion is provided on the PCB board 19. The lamp cover member 22 is snap-connected to the PCB board snap portion of the PCB board 19 through the lamp cover member snap portion, with a simple structure and convenient disassembly and assembly.

[0042] The above light-emitting display module can be applied to a door body. The door body includes a front panel 24 and a rear cover plate 25. A light-emitting display area 27 is provided on the front panel 24. The front panel 24 and the rear cover plate 25 are fixed to each other, and a door body cavity 26 is formed therebetween. The light-emitting display module is located inside the door body cavity 26 and behind the light-emitting display area 27. The PCB board 19 is fixed to the front panel 24 or the rear cover plate 25.

[0043] Specifically, the front panel 24 and the rear cover plate 25 are fixed to each other by snap connection, or fasteners, or pasting. The PCB board 19 is fixed to the front panel 24 by snap connection, or fasteners, or pasting. The front end face of the lamp cover member 22 abuts against the back side of the light-emitting display area 27.

[0044] In this embodiment, a front panel snap portion is provided on the front panel 24, and a rear cover plate snap mating portion is provided on the rear cover plate 25. The front panel 24 is snap-connected to the rear cover plate snap mating portion of the rear cover plate 25 through the front panel snap portion. A PCB board fastening hole is provided on the PCB board 19, and a front panel fastening mating hole is provided on the front panel 24. The PCB board fastening hole and the front panel fastening mating hole are fixed to each other by fasteners.

[0045] The front end face of the lamp cover member 22 abuts against the back side of the light-emitting display area 27, so that the light emitted by the LED lamp 20 during operation can directly irradiate the light-emitting display area 27 through the PCB board through-hole 21 and the lamp cover member through-hole 23. The light-emitting display area 27 can transmit the light emitted by the LED lamp 20, so that the user can view the light emitted by the LED lamp 20 through the light-emitting display area 27.

[0046] The above is the preferred solution of the present utility model, which shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, various changes and improvements will occur to the present utility model, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A light-emitting display module, comprising a PCB board (19) and an LED lamp (20), characterized in that: The front face of the PCB board (19) is a smooth surface, and the back face is covered with a copper plate to form a connection circuit. The PCB board (19) is provided with PCB board through holes (21) running through it before and after corresponding to the LED lamp (20). The LED lamp (20) is located on the back face of the PCB board (19) and is arranged on the PCB board through holes (21), and is cooperatively connected with the connection circuit. The LED lamp (20) emits light toward the front face of the PCB board (19) through the PCB board through holes (21). A lamp shade member (22) is arranged on the front face of the PCB board (19), and the lamp shade member (22) is provided with lamp shade member through holes (23) running through it before and after corresponding to the PCB board through holes (21).

2. The light-emitting display module according to claim 1, wherein: The LED lamp (20) is a surface-mounted LED and is mounted on the PCB board through holes (21).

3. The light-emitting display module according to claim 1, wherein: A plurality of the LED lamps (20) are provided, and a plurality of the PCB board through holes (21) are provided, and the number thereof corresponds to the number of the LED lamps (20).

4. The light-emitting display module according to claim 3, wherein: The plurality of LED lamps (20) and the plurality of PCB board through holes (21) are arranged in a dot matrix and correspond to each other one by one.

5. The light-emitting display module according to claim 1, characterized in that: A plurality of the lamp shade member through holes (23) are provided, and the plurality of lamp shade member through holes (23) are arranged at horizontal intervals or in a dot matrix corresponding to the plurality of PCB board through holes (21).

6. The light-emitting display module according to claim 1, wherein: The lamp shade member through holes (23) are arranged to run through horizontally linearly, or the lamp shade member through holes (23) are arranged to run through and expand outward away from the PCB board (19).

7. The light-emitting display module according to claim 1, wherein: The lamp shade member (22) is fixed to the PCB board (19) by clamping, or fasteners, or adhesion.

8. A door body, characterized in that: It includes a front panel (24), a rear cover plate (25), and the light-emitting display module according to claim 1. A light-emitting display area (27) is arranged on the front panel (24). The front panel (24) and the rear cover plate (25) are fixed to each other, and a door body cavity (26) is formed therebetween. The light-emitting display module is located in the door body cavity (26) and behind the light-emitting display area (27). The PCB board (19) is fixed to the front panel (24) or the rear cover plate (25).

9. The door body according to claim 8, characterized in that: The front panel (24) and the rear cover plate (25) are fixed to each other by clamping, or fasteners, or adhesion. The PCB board (19) is fixed to the front panel (24) by clamping, or fasteners, or adhesion. The front face of the lamp shade member (22) abuts against the back side of the light-emitting display area (27).

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