Anti-fog combination instrument shell structure assembly

Abstract

According to the anti-fog combination instrument shell structure assembly, an instrument outer transparent plate and an instrument inner transparent plate are arranged between an instrument upper cover and an instrument bottom shell to form a double-layer hollow structure, when the temperature of the upper surface of the exterior of an instrument drops sharply, through isolation of the hollow structure, the temperature in the instrument drops and is buffered for a certain time, and the anti-fog effect is achieved. The internal temperature is slowly reduced, and the water vapor in the air is relatively dispersed and cannot be condensed on the transparent plate due to the slow reduction of the temperature; besides, air and water vapor in the hollow structure between the inner transparent plate and the outer transparent plate are relatively less, and cannot be condensed into water drops, so that the generation of fog is avoided, and the generation of fog inside can be effectively prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of instrument housing structures, and particularly relates to an anti-fog combined instrument housing structure assembly. Background Art

[0002] With the rapid development of science and technology, measurement and control technology plays an increasingly important role in the era of electrification. Especially in the automotive field, the instrument is responsible for real-time monitoring of the engine and vehicle conditions to ensure the smooth operation of the vehicle. Due to the poor working environment of agricultural machinery, intelligent combination instruments are more important in tractors, harvesters and other equipment.

[0003] Since small vehicles do not have a cab, the instruments are easily exposed to wind and rain without protection. When the temperature inside and outside the instrument changes drastically, water vapor in the air will easily condense inside the instrument and adhere to the transparent plate to produce fog, affecting the observation of the instrument status. Therefore, it is particularly important to prevent the formation of fog.

[0004] The utility model with announcement number CN220314727U discloses an instrument panel with an anti-fog device, the key points of its technical solution include that a transparent panel is arranged in the middle of the front side of the instrument housing, a defogger mechanism is arranged in the middle of the inner side of the transparent panel, the defogger mechanism includes a scraper, the scraper slides in the vertical direction on the inner side surface of the transparent panel, a soft sponge is fixedly installed in the middle of the bottom end of the scraper, the soft sponge is in close contact with the inner side surface of the transparent panel, a screw rod is rotatably installed at the right end of the inner side of the instrument housing, the screw rod is driven by a motor, the screw rod is located in the middle of the right end of the transparent panel, bearings are arranged at the connection between the screw rod and the instrument housing, a sliding rod is arranged in the middle of the left end of the instrument housing, the sliding rod is located in the middle of the left end of the transparent panel, and a slider is slidably installed in the middle of the screw rod and the sliding rod; however, it mainly removes mist by cooperating with the scraper of the defogger mechanism and the hot air drying mechanism, and the structural setting is relatively complicated.

[0005] The utility model with announcement number CN214729716U discloses an anti-fogging instrument panel for aircraft, the technical scheme of which includes an instrument panel body and an instrument panel frame, a transparent instrument housing is provided on the top of the instrument panel body, a movable block is provided on the top of the transparent instrument housing, an electric push rod is fixedly provided at the front end of the interior of the instrument panel frame, a first slide groove is provided at the bottom of the movable block, a first slider is provided inside the first slide groove, a spring is provided inside the first slide groove, and absorbent sponges are fixedly provided at the bottom ends of the movable block and the first slider; the absorbent sponges are mainly used to automatically clean the mist on the top end of the transparent instrument housing, and the absorbent sponges have saturation and cannot be defogged for a long time. Summary of the invention

[0006] The purpose of the utility model is to provide an anti-fog combination instrument housing structure assembly to prevent fog from affecting the observation of instrument status.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] An anti-fog combination instrument housing structure assembly comprises an instrument upper cover, an instrument bottom shell, and an instrument outer transparent plate, an instrument inner transparent plate and an instrument circuit board assembly arranged therebetween, wherein the instrument upper cover and the instrument bottom shell are detachably connected;

[0009] The outer transparent plate of the instrument is sealed and integrated with the upper cover of the instrument, and the inner transparent plate of the instrument is spaced inside the inner side of the outer transparent plate of the instrument and is sealed and connected with the upper cover of the instrument through the instrument sealing ring arranged circumferentially.

[0010] The outer transparent plate of the instrument and the inner transparent plate of the instrument form a double-layer hollow structure, and the instrument circuit board assembly is arranged inside the inner transparent plate of the instrument and fixed on the bottom shell of the instrument.

[0011] The main body of the transparent plate in the instrument is set as a U-shaped plate, and overlapping parts are extended on both side walls of the U-shaped plate, and the instrument sealing ring is correspondingly set as an inverted U-shaped structure and sleeved on the overlapping parts.

[0012] The instrument upper cover and the instrument bottom shell are connected by self-tapping screws, and the self-tapping screws pass through the overlapping part of the transparent plate inside the instrument and the instrument sealing ring.

[0013] An instrument sealing gasket is sandwiched between the instrument circuit board assembly and the instrument bottom shell, and a waterproof and breathable membrane is attached to the bottom of the instrument bottom shell.

[0014] The instrument upper cover and the instrument outer transparent plate are formed into one piece by injection molding.

[0015] The outer transparent plate of the instrument is set as a U-shaped structure and is inverted on the upper cover of the instrument.

[0016] The beneficial effects of the utility model are:

[0017] The anti-fog combination instrument shell structure assembly forms a double-layer hollow structure by arranging an instrument outer transparent plate and an instrument inner transparent plate between an instrument upper cover and an instrument bottom shell. When the temperature of the outer upper surface of the instrument drops sharply, the temperature inside the instrument drops through the insulation of the hollow structure and has a certain time buffer, and the internal temperature drops slowly. The slow drop in temperature makes the water vapor in the air more dispersed and will not condense on the transparent plate. In addition, the air in the hollow structure between the inner and outer transparent plates is relatively small, and the water vapor is also small, which cannot condense into water droplets, thereby preventing the generation of fog and effectively preventing the generation of fog inside. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the front view of the utility model;

[0019] Figure 2 It is a top view of the utility model;

[0020] Figure 3 It is a side sectional view of the utility model;

[0021] Figure 4 It is a cutaway stereogram of the utility model. DETAILED DESCRIPTION

[0022] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0023] The utility model provides an anti-fog combination instrument housing structure assembly, such as Figures 1 to 4 shown.

[0024] A fog-proof combination instrument housing structure assembly comprises an instrument upper cover 1, an instrument bottom shell 5, and an instrument outer transparent plate 2, an instrument inner transparent plate 3 and an instrument circuit board assembly 6 arranged therebetween, wherein the instrument upper cover 1 and the instrument bottom shell 5 are detachably connected; the instrument outer transparent plate 2 and the instrument upper cover 1 are sealed and integrated, and the instrument inner transparent plate 3 is spaced apart at the inner side of the instrument outer transparent plate 2 and is sealed and connected to the instrument upper cover 1 through an instrument sealing ring 4 arranged circumferentially, the instrument outer transparent plate 2 and the instrument inner transparent plate 3 form a double-layer hollow structure, and the instrument circuit board assembly 6 is arranged at the inner side of the instrument inner transparent plate 3 and fixedly arranged on the instrument bottom shell 5.

[0025] In this embodiment, the main body of the transparent plate 3 inside the instrument is set as a U-shaped plate, and overlapping parts are extended on both side walls of the U-shaped plate, and the instrument sealing ring 4 is correspondingly set as an inverted U-shaped structure and is sleeved on the overlapping parts to ensure sealing.

[0026] For easy installation, the instrument upper cover 1 and the instrument bottom shell 5 are connected by self-tapping screws 8, and the self-tapping screws pass through the overlapping part of the transparent plate 3 inside the instrument and the instrument sealing ring 4; an instrument sealing gasket 7 is also sandwiched between the instrument circuit board assembly 6 and the instrument bottom shell 5, and a waterproof and breathable membrane is also attached to the bottom of the instrument bottom shell 5. The coordinated arrangement of the instrument sealing gasket and the waterproof and breathable membrane isolates the instrument bottom shell 5 from the outside world to form a sealed structure. Air can circulate inside and outside the whole, and the entry of water vapor is effectively prevented.

[0027] In order to improve the sealing performance, in this embodiment, the instrument upper cover 1 and the instrument outer transparent plate 2 are integrally formed by secondary injection molding, and the instrument outer transparent plate 2 is set as a U-shaped structure and is inverted on the instrument upper cover 1.

[0028] The anti-fog combination instrument shell structure assembly forms a double-layer hollow structure by arranging an instrument outer transparent plate and an instrument inner transparent plate between an instrument upper cover and an instrument bottom shell. When the temperature of the outer upper surface of the instrument drops sharply, the temperature inside the instrument drops through the insulation of the hollow structure and has a certain time buffer, and the internal temperature drops slowly. The slow drop in temperature makes the water vapor in the air more dispersed and will not condense on the transparent plate. In addition, the air in the hollow structure between the inner and outer transparent plates is relatively small, and the water vapor is also small, which cannot condense into water droplets, thereby preventing the generation of fog and effectively preventing the generation of fog inside.

[0029] If the words "first", "second" and so on are used in this patent to limit components, those skilled in the art should know that the use of "first" and "second" is only for the convenience of describing the utility model and simplifying the description, and the above words have no special meaning.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

[0031] In the description of the present invention, it is necessary to understand that the terms "front", "rear", "left", "right", "center", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 on the protection content of the present invention.

Claims

1. An anti-fog combination instrument housing structure assembly, characterized in that: It includes an instrument upper cover, an instrument bottom shell, and an instrument outer transparent plate, an instrument inner transparent plate and an instrument circuit board assembly arranged between the two, and the instrument upper cover and the instrument bottom shell are detachably connected; The outer transparent plate of the instrument is sealed and integrated with the upper cover of the instrument, and the inner transparent plate of the instrument is spaced inside the inner side of the outer transparent plate of the instrument and is sealed and connected with the upper cover of the instrument through the instrument sealing ring arranged circumferentially. The outer transparent plate of the instrument and the inner transparent plate of the instrument form a double-layer hollow structure, and the instrument circuit board assembly is arranged inside the inner transparent plate of the instrument and fixed on the bottom shell of the instrument.

2. The anti-fog combination instrument housing structure assembly according to claim 1, characterized in that: The main body of the transparent plate in the instrument is set as a U-shaped plate, and overlapping parts are extended on both side walls of the U-shaped plate, and the instrument sealing ring is correspondingly set as an inverted U-shaped structure and sleeved on the overlapping parts.

3. The anti-fog combination instrument housing structure assembly according to claim 2, characterized in that: The instrument upper cover and the instrument bottom shell are connected by self-tapping screws, and the self-tapping screws pass through the overlapping part of the transparent plate inside the instrument and the instrument sealing ring.

4. The anti-fog combination instrument housing structure assembly according to any one of claims 1 to 3, characterized in that: An instrument sealing gasket is sandwiched between the instrument circuit board assembly and the instrument bottom shell, and a waterproof and breathable membrane is attached to the bottom of the instrument bottom shell.

5. The anti-fog combination instrument housing structure assembly according to claim 4, characterized in that: The instrument upper cover and the instrument outer transparent plate are formed into one piece by injection molding.

6. The anti-fog combination instrument housing structure assembly according to claim 5, characterized in that: The outer transparent plate of the instrument is set as a U-shaped structure and is inverted on the upper cover of the instrument.

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