Embedded integral waterproofing instrument housing
The utility model relates to the embedded waterproof instrument housing that a kind of integral waterproofing instrument housing, especially complete machine have the waterproof and dustproof function, belongs to electronic instruments equipment field.
Traditional flush type meter housing does not generally possess the rear portion of complete machine water-proof function, particularly housing.When the instrument environment for use is moist, humid air in the environment, easily because of cold and hot conversion dewfall and form water droplet, when dropping onto the instrument surface that does not possess water-proof function, water droplet very easily is penetrated into enclosure interior, be dropped on the electronic devices and components, cause whole instrument damage malfunctioning, even too early scrapping.When increasing maintenance difficulty, strengthened the production cost of enterprise.
Summary of the invention
The purpose of this utility model is the deficiency that overcomes above-mentioned prior art, and a kind of embedded integral waterproofing instrument housing is provided.Internal circuit board is fixed on the front of housing, seals with film face-plate then to show and the button part; Back cover embeds main casing, and wire hole part in bottom is sealed by sealing shroud.Housing is installed in cabinet or the instrument box, and the sealing ring between housing and the cabinet can prevent that housing and cabinet or instrument box front from spraying water arbitrarily; Waterproof by being tightly connected of bonnet and main casing, is effectively realized in the housing rear portion.This waterproof cover physical efficiency improves the degree of protection of enclosure interior electronic device, is particularly suitable for using under waterproof and dustproof, fire-retardant environment of having relatively high expectations.
The utility model is realized with following technical scheme: a kind of embedded integral waterproofing instrument housing is characterized in that: it comprises main casing, in the front of main casing by the fixing circuit board main part of sunk screw, show and button on post film face-plate; Back cover embeds main casing, relies on the overlapping step of embedded part to form sealing, and with screw back cover is fastened on the main casing; The lead wire hole part of circuit board main part is sealed by sealing shroud.
Described a kind of embedded integral waterproofing instrument housing, device have the main casing embedding of sealing ring to be installed on the instrument mounting panel, and the rear portion is fastened by elasticity.
The beneficial effects of the utility model are: after instrument embeds and is installed to control cubicle or control box, the faceplate part that is exposed on the external, by the sealing ring water-tight between film face-plate and instrument housing and control cubicle or the control box, the housing rear portion is by the bonnet and the sealing shroud water-tight that embed.Degree of protection by this waterproof cover physical efficiency raising enclosure interior electronic device is particularly suitable for using under waterproof and dustproof, fire-retardant ambient conditions of having relatively high expectations.
Description of drawings
The utility model is described in further detail to reaching embodiment below in conjunction with accompanying drawing:
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model structural profile schematic diagram;
Among the figure: 1, sunk screw, 2, square double-screw bolt, 3, film face-plate, 4, circuit board assemblies, 5, main casing, 6, sealing shroud, 7, lead, 8, back cover, 9, hold-down screw, 10, demonstration and button part, 11, the elasticity card, 12 sealing rings, 13, the instrument mounting panel.
As shown in the figure, it comprises main casing 5, the circuit board main part of being fixed by sunk screw 1 in the front of main casing 54, post film face-plate 3 on demonstration and the button 10, back cover 8 embeds and is installed in main casing, rely on the overlapping step of embedded part to form sealing, and by screw 9 back cover is fastened on the main casing, the lead 7 wire holes part of circuit board main part 4 is by sealing shroud 6 sealings.
Described a kind of embedded integral waterproofing instrument housing, device have the main casing 5 of sealing ring 12 to be embedded into to be installed on the instrument mounting panel 13, and the rear portion is fixing by elasticity card 11.
Specific operation process: the circuit board of the side's of installing double-screw bolt is in place from the horizontal sliding of main casing rear portion, with sunk screw circuit board is fixed to main casing from the main casing front, sticking film face-plate then partly seals demonstration and button, the main casing that puts sealing ring is embedded the instrument mounting panel from installing hole, the rear portion is fixed by flexible card, the front panel part has just sealed like this, and bonnet is inserted into the wire hole that forms behind the main casing and seals with sealing shroud, with hold-down screw bonnet and main casing is fixed then.