Control instrument screen and engineering machinery

Abstract

The utility model relates to the technical field of engineering machinery, and provides a control instrument screen and engineering machinery, the control instrument screen comprises a shell, a PCB and a screen assembly, the shell is provided with a cavity, the PCB is arranged in the cavity, the screen assembly is arranged at the end part of the shell, the screen assembly comprises a glass cover plate and a liquid crystal screen, and the liquid crystal screen is arranged in the cavity. The liquid crystal screen is attached to the side, facing the shell, of the glass cover plate, the liquid crystal screen and the glass cover plate are connected together in a full-attaching mode, and indicator lamp icons are sprayed on the side, deviating from the liquid crystal screen, of the glass cover plate; according to the utility model, the liquid crystal screen as the screen assembly is connected with the glass cover plate in a full-fitting manner, so that common air layers or gaps in a traditional non-full-fitting screen are eliminated, and the definition and color saturation of the screen are improved; and on the other hand, the sealing performance of the screen is remarkably enhanced, external dust, water vapor and other impurities are effectively prevented from invading, and the problem that water mist is generated in the screen can be fundamentally solved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a control instrument panel and engineering machinery. Background Art

[0002] With the development of intelligence and wisdom, vehicle-mounted instrument screens have become an indispensable configuration for the display, operation and control of engineering vehicles. Comprehensive and accurate data display, seamless operating interface and abundant control ports have greatly improved the convenience of user operation and the efficiency of visualization work.

[0003] At present, the market has higher and higher requirements for the appearance and functions of vehicle-mounted instruments. However, the existing engineering machinery instrument display screen, after integrating multiple functions such as display, control, and operation, increases the thickness of the display screen, and the LCD screen adopts a frame-sticker design, which leads to a large spacing between acrylic cover plates and poor sealing. When the temperature difference is large, a large amount of water mist is easily accumulated, and it is impossible to take into account both reliability and a thin and light appearance design at the same time. Utility Model Content

[0004] The utility model provides a control instrument screen and engineering machinery, which are used to solve the problem in the prior art that the liquid crystal screen has poor sealing performance and is prone to water mist.

[0005] The utility model provides a control instrument screen, comprising:

[0006] A housing having a cavity;

[0007] A PCB board is arranged in the cavity;

[0008] The screen assembly is arranged at the end of the shell, and the screen assembly includes a glass cover plate and a liquid crystal screen. The liquid crystal screen is attached to the side of the glass cover plate facing the shell, and the side of the glass cover plate facing away from the liquid crystal screen is sprayed with an indicator light icon.

[0009] According to the control instrument screen provided by the utility model, a mounting groove is provided at the front end of the shell, and the glass cover plate is adapted to the mounting groove.

[0010] According to the control instrument screen provided by the utility model, the shell includes a first cover plate and a second cover plate, the first cover plate is detachably connected to the second cover plate, the mounting groove is arranged at an end of the first cover plate away from the second cover plate, and a USB socket is arranged on one side of the second cover plate.

[0011] According to the control instrument screen provided by the utility model, a plurality of light guide holes are respectively arranged on both sides of one end of the first cover plate corresponding to the glass cover plate.

[0012] According to the control instrument panel provided by the present utility model, a sealing ring is provided between the first cover plate and the second cover plate.

[0013] According to the control instrument panel provided by the present utility model, the liquid crystal screen is arranged in the middle of the glass cover plate. Button holes are provided below the glass cover plate, and a plurality of function display icons are provided on both sides of the glass cover plate.

[0014] According to the control instrument panel provided by the present utility model, a button board is arranged on the PCB board at a position corresponding to the button holes. A plurality of buttons are arranged on the button board, and button films are arranged on the end faces of the buttons.

[0015] According to the control instrument panel provided by the present utility model, a main control MCU, a display circuit and a control circuit are integrated on the PCB board. The button board is inserted on the PCB board through PIN pins.

[0016] According to the control instrument panel provided by the present utility model, a wireless communication module and a storage module are also arranged on the PCB board. The main control MCU is respectively in communication connection with the wireless communication module and the storage module.

[0017] The present utility model also provides a construction machinery, including the above-mentioned control instrument panel.

[0018] A control instrument panel provided by the present utility model includes a housing, a PCB board and a screen assembly.

[0019] The housing is provided with a cavity. The PCB board is arranged in the cavity. The screen assembly is arranged at the front end of the housing. The screen assembly includes a glass cover plate and a liquid crystal screen. The liquid crystal screen is attached to one side of the glass cover plate facing the housing, and the two are connected together in a full lamination manner. Indicator icons are sprayed on the side of the glass cover plate facing away from the liquid crystal screen. With such an arrangement, in the present utility model, the liquid crystal screen serving as the screen assembly is connected to the glass cover plate in a full lamination manner. On the one hand, the air layer or gap commonly found in traditional non-full lamination screens is eliminated, making the screen look more flat and unified, significantly reducing the reflection and glare phenomena caused by the scattering of light in the air layer, thereby improving the clarity and color saturation of the screen, making the picture more delicate and vivid, and the overall shape more beautiful. On the other hand, the sealing performance of the screen is significantly enhanced, effectively blocking the intrusion of external dust, water vapor and other impurities, and being able to fundamentally solve the problem of water mist generated inside the screen, protecting the screen from damage. Even when the device is used in a humid environment, it can effectively prevent water vapor from entering the screen interior and avoid the generation of water mist, and at the same time extend the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is the front view of the control instrument panel provided by the embodiment of the present utility model.

[0022] Figure 2 It is the exploded view of the control instrument panel provided by the embodiment of the present utility model.

[0023] Reference numerals:

[0024] 1. Housing; 11. First cover plate; 12. Second cover plate; 13. Installation groove; 14. Button hole;

[0025] 2. PCB board; 3. Glass cover plate; 31. Function display icon; 4. Liquid crystal display screen; 5. Sealing ring; 6. Button board; 61. Button; 7. Button film. Detailed implementation manners

[0026] To make the purpose, technical solutions and advantages of the present utility model clearer, the following will clearly and completely describe the technical solutions in the present utility model in conjunction with the drawings in the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0027] The following will describe Figure 1 - Figure 2 a control instrument panel and a construction machinery of the present utility model.

[0028] The embodiment of the present utility model provides a control instrument panel, including: a housing 1, a PCB board 2 and a screen assembly.

[0029] Among them, the housing 1 is provided with a cavity, the PCB board 2 is arranged in the cavity, the screen assembly is arranged at the end of the housing 1, the screen assembly includes a glass cover plate 3 and a liquid crystal display screen 4, the liquid crystal display screen 4 is attached to one side of the glass cover plate 3 facing the housing 1, and the two are connected together in a full lamination manner. The side of the glass cover plate 3 facing away from the liquid crystal display screen 4 is sprayed with indicator icons.

[0030] With such a setting, the liquid crystal display screen 4 and the glass cover plate 3 of the present utility model, which are used as the screen assembly, are connected together in a full lamination manner. On the one hand, it eliminates the common air layer or gap in the traditional non-full lamination screen, making the screen look flatter and more unified, significantly reducing the reflection and glare phenomena caused by the scattering of light in the air layer, thereby improving the clarity and color saturation of the screen, making the picture more delicate and vivid, and the overall shape more beautiful. On the other hand, it significantly enhances the sealing performance of the screen, effectively blocking the intrusion of external dust, water vapor and other impurities, and can fundamentally solve the problem of water mist generated inside the screen, protecting the screen from damage. Even when the device is used in a humid environment, it can effectively prevent water vapor from entering the screen interior and avoid the generation of water mist, while also extending the service life of the device.

[0031] In some embodiments, the liquid crystal display screen 4 is seamlessly attached to the glass cover plate 3 through a transparent optical adhesive to avoid generating an air layer or gap.

[0032] In this embodiment, the main control MCU, display circuit and control circuit are integrated on the PCB board 2. Through the highly integrated integrated design of the PCB board 2, compared with the traditional technology, the number of circuit boards in the housing 1 is reduced, the product reliability is improved, the thickness of the housing 1 is 50 mm - 58 mm, and the overall structure is small and light in weight.

[0033] With such a setting, aiming at the problem that the multi-control port instrument screen in the prior art is composed of multiple circuit boards in a combined design, and the board-to-board connectors are used between the boards, increasing the cost and the thickness of the display screen and reducing the reliability, the PCB board 2 of the present utility model adopts a highly integrated and integrated design, reducing the number of circuit boards, improving the reliability of the product, and overall achieving lightness and thinness.

[0034] In this embodiment, an installation groove 13 is provided at the front end of the housing 1, and the glass cover plate 3 is adapted to the installation groove 13, and the glass cover plate 3 is clamped on the housing 1 through the installation groove 13.

[0035] Specifically, the housing 1 includes a first cover plate 11 and a second cover plate 12. The first cover plate 11 and the second cover plate 12 are detachably connected. The space enclosed between the first cover plate 11 and the second cover plate 12 forms a cavity. The installation groove 13 is provided at one end of the first cover plate 11 facing away from the second cover plate 12. A USB socket is provided on one side of the second cover plate 12, and the main control MCU is connected to the USB port, and data transmission can be realized through the USB port.

[0036] Preferably, a sealing ring 5 is provided between the first cover plate 11 and the second cover plate 12. By providing the sealing ring 5, the sealing performance of the connection is improved to improve the sealing performance of the housing 1 and protect the components in the housing 1.

[0037] In this embodiment, the liquid crystal screen 4 is arranged in the middle of the glass cover plate 3. There is a keyhole 14 below the glass cover plate 3. The shape of the keyhole 14 can be trapezoidal, rectangular, oval or other shapes. A plurality of function display icons 31 are arranged on both sides of the glass cover plate 3. As Figure 1 and Figure 2 shown, the keyhole 14 is a trapezoidal notch arranged below the glass cover plate 3. Correspondingly, a key slot is arranged on the first cover plate 11 for accommodating the key 61. The function display icons 31 are used to represent icons such as engine, hydraulic oil temperature, air filter, and oil pressure. When the engine speed, hydraulic oil temperature, air filter, and oil pressure data are abnormal, the corresponding icons on the liquid crystal display screen flash to remind the driver to perform maintenance on the construction machinery in time.

[0038] In this embodiment, a plurality of light guide holes are respectively arranged on both sides of one end of the first cover plate 11 corresponding to the glass cover plate 3, for transmitting the light of the indicator lamp, so that the driver can clearly observe the state of the function display icons 31 on the glass cover plate 3.

[0039] Optionally, the main control MCU is connected to the engine ECU through the CAN interface to obtain the indicator lamp control signal, and outputs through the multi-channel GPIO to control the on and off of a plurality of indicator lamps. The indicator lamps include: generator power generation indicator lamp, engine fault indicator lamp, sound and light alarm off lamp, SCR fault indicator lamp, stationary regeneration indicator lamp, brake indicator lamp, and shutdown power-off delay indicator lamp.

[0040] As Figure 1 shown, a key board 6 is arranged on the PCB board 2 at the position corresponding to the keyhole 14. A plurality of keys 61 are arranged on the key board 6, and the number of keys 61 can be three, four or more. And a key film 7 is arranged on the end face of the key 61 for indicating the functions corresponding to the keys 61 at different positions, so as to facilitate operation; for example, the key board 6 is inserted on the PCB board 2 through PIN pins, reducing complex connections and improving product reliability. There are four keys 61 on the key board 6. The main control MCU can be respectively connected to the four keys 61 through 4-way GPIO, and perform operations such as page turning, selection, return, and alarm closing through the operation of the keys 61.

[0041] In this embodiment, a wireless communication module and a storage module are further provided on the PCB board 2, and the main control MCU is respectively communicatively connected to the wireless communication module and the storage module; for example, the storage module adopts a Flash memory and an SDRAM. Among them, the Flash memory is used to store static data such as system programs and UI pictures, and is suitable for storing data that needs to be stored for a long time. The SDRAM is used to temporarily store the data and intermediate results generated during the program execution. The SDRAM has high-speed read and write capabilities and can support the MCU to perform efficient data processing; the main control MCU converts the UI picture data stored in the Flash or SDRAM into an RGB signal through an internal or external graphics processing unit GPU or a similar module. The RGB signal output by the main control MCU is connected to the display screen through an FPC flexible circuit board. The system can also realize the switching of multi-language UI interfaces through the UI pictures in different language versions stored in the Flash and the corresponding control logics.

[0042] With such a setting, the wireless communication module realizes the transceiver of data and the remote upgrade of the program, and combined with the above-mentioned USB port, it realizes the functions of supporting U disk upgrade and wireless upgrade, which is convenient and fast, and the UI pictures can be updated without disassembling the internal components of the system; the storage module stores the program and multi-language UI pictures, and can transmit the UI pictures through the USB port, realizing the storage and reading of UI information.

[0043] The present utility model also provides a construction machinery, such as an excavator, including the above-mentioned control instrument panel. Due to the adoption of the above-mentioned control instrument panel, it has all the advantages of the control instrument panel, which will not be elaborated here.

[0044] In the description of this specification, the descriptions referring to the terms "one embodiment", "some embodiments", "mode", "specific mode", or "some modes", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or mode are included in at least one embodiment or mode of the embodiments of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or mode. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or modes. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or modes described in this specification and the features of different embodiments or modes.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A control instrument panel, characterized in that, Comprising: A housing (1) provided with a cavity; A PCB board (2) disposed in the cavity; A screen assembly disposed at an end of the housing (1), the screen assembly including a glass cover plate (3) and a liquid crystal screen (4), the liquid crystal screen (4) being attached to a side of the glass cover plate (3) facing the housing (1), and an indicator icon being sprayed on a side of the glass cover plate (3) facing away from the liquid crystal screen (4).

2. The control instrument panel according to claim 1, wherein An installation groove (13) is provided at a front end of the housing (1), and the glass cover plate (3) is adapted to the installation groove (13).

3. The control instrument panel according to claim 2, characterized in that, The housing (1) includes a first cover plate (11) and a second cover plate (12), the first cover plate (11) and the second cover plate (12) are detachably connected, the installation groove (13) is provided at an end of the first cover plate (11) facing away from the second cover plate (12), and a USB socket is provided on one side of the second cover plate (12).

4. The control instrument panel according to claim 3, characterized in that, A plurality of light guide holes are respectively provided on both sides of one end of the first cover plate (11) corresponding to the glass cover plate (3).

5. The control instrument panel according to claim 3, wherein A sealing ring (5) is provided between the first cover plate (11) and the second cover plate (12).

6. The control instrument panel according to any one of claims 1 to 5, characterized in that, The liquid crystal screen (4) is disposed in the middle of the glass cover plate (3), a key hole (14) is provided below the glass cover plate (3), and a plurality of function display icons (31) are provided on both sides of the glass cover plate (3).

7. The control instrument panel according to claim 6, wherein, A key board (6) is provided on the PCB board (2) at a position corresponding to the key hole (14), a plurality of keys (61) are provided on the key board (6), and a key film (7) is provided on an end face of the key (61).

8. The control instrument panel according to claim 7, characterized in that, A main control MCU, a display circuit and a control circuit are integrated on the PCB board (2), and the key board (6) is inserted on the PCB board (2) through PIN pins.

9. The control instrument panel according to claim 8, wherein A wireless communication module and a storage module are further provided on the PCB board (2), and the main control MCU is respectively communicatively connected to the wireless communication module and the storage module.

10. An engineering machinery, characterized in that, Including the control instrument screen according to any one of claims 1-9.

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