CN218122701U

CN218122701U - Thermoplastic plastic shell

Info

Publication number: CN218122701U
Application number: CN202221822159.8U
Authority: CN
Inventors: 戴飞腾; 郝佩东
Original assignee: Huizhou Qianli Electronics Co ltd
Current assignee: Huizhou Qianli Electronics Co ltd
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2022-12-23
Anticipated expiration: 2032-07-15

Abstract

The utility model discloses a thermoplastic shell, including plastic shell body and top cap, the bottom of plastic shell body is provided with the installation backplate. This thermoplasticity plastic shell is through the in-process that uses, can control the cooling fan start-up of plastic shell body rear end, and through the multiunit ventilation groove that utilizes the inside setting in plastic shell body both sides, the heat that produces the subassembly during operation such as the circuit board of outside air suction and to plastic shell body internally mounted, carry out the heat exchange and take the heat out by cooling fan and get rid of, simultaneously in the outside both sides of plastic shell body respectively at radiating in-process, it can carry out the filtering to entering into debris such as flotation fibre and dust in the ventilation groove inside air to be provided with the air filter screen piece in the outside in ventilation groove, prevent dust to the inside of shell and internally mounted's electronic component's outside, solved and be not convenient for dispel the heat dirt dustproof problem to the electronic component of plastic shell inside.

Description

Thermoplastic plastic shell

Technical Field

The utility model relates to an entrance guard's card reader technical field specifically is a thermoplastic shell.

Background

The entrance guard card reader is one of important composition parts in the access control system, the card reader uses the electromagnetic wave that can send fixed frequency, after the user enters into the radiation range of card reader electromagnetic wave through handheld corresponding response card, the response card can send the signal to the card reader, the server that the entrance guard was given to with the signal through the controller transmission again by the card reader, compare the back by the server to the response card signal, at last authentication identity and door opening, the entrance guard card reader mainly comprises outside thermoplastic shell and inside circuit board subassembly etc. nevertheless, some thermoplasticity plastic shells that some existing entrance guard card readers used still have some not enough in the in-process of using, for example, be not convenient for dispel the heat dustproof to the inside electronic component of plastic shell, be not convenient for dry the inside of shell simultaneously, and also be not convenient for to carry out the dismouting to the plastics in the in-process of installing.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a thermoplastic shell to provide the dustproof problem of dispelling the heat to the inside electronic component of plastic shell of not being convenient for among the solution above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a thermoplastic shell, includes plastic shell body and top cap, the bottom of plastic shell body is provided with the installation backplate, the top of plastic shell body is provided with the top cap, the inside of four corners on top cap top is run through respectively and is provided with clamping screw, the inside of four corners on top of plastic shell body is provided with the screw hole respectively, the inside of screw hole both sides is the vertical ventilation groove that is provided with respectively, the inside both sides of plastic shell body are provided with respectively and store the box, the both sides on installation backplate top are provided with the draw-in groove respectively.

Preferably, the two sides of the plastic shell body are respectively provided with an air filter screen sheet, the middle positions at the two ends of the air filter screen sheet are respectively fixed with a fixing foot, one side of the fixing foot is provided with a dismounting screw in a penetrating manner, the insides at the two ends of the two sides of the plastic shell body are respectively provided with a screw hole, and the middle position at the rear end of the plastic shell body is fixed with a heat radiation fan.

Preferably, the ventilation groove runs through one side of the plastic shell body, the ventilation groove is communicated with the inside of the plastic shell body, and six groups of ventilation grooves are arranged in the two sides of the plastic shell body at equal intervals.

Preferably, the insides of both sides of the storage box are respectively provided with a through hole, and the inside of the storage box is provided with calcium chloride particles.

Preferably, the both ends of storage box are fixed with the cutting respectively, the both sides at the inside both ends of plastic shell body are provided with the slot respectively.

Preferably, the installation feet are respectively fixed in the two ends of the two sides of the installation backboard, and the clamping blocks are respectively fixed on the two sides of the bottom end of the plastic shell.

Preferably, the front end of the clamping groove penetrates through the front end of the mounting back plate.

Preferably, the clamping grooves are symmetrically arranged about a vertical center line of the mounting backboard.

Compared with the prior art, the beneficial effects of the utility model are that: the thermoplastic plastic shell not only realizes the purposes of facilitating heat dissipation and dust prevention of electronic components inside the plastic shell, dehumidifying and drying the inside of the shell, but also realizes the purposes of facilitating the disassembly and assembly of plastic in the installation process;

(1) By arranging the ventilating slots, the radiating fan, the dismounting screws, the air filter screen sheet and the fixing pins, the plastic shell can be started by controlling the radiating fan at the rear end of the plastic shell in the using process, external air is sucked in and heat generated when components such as a circuit board and the like installed in the plastic shell work is radiated by utilizing a plurality of groups of ventilating slots arranged in two sides of the plastic shell, the heat is extracted and removed by the radiating fan through heat exchange, the heat can be radiated in the shell, meanwhile, the air filter screen sheet is respectively arranged on two sides outside the plastic shell in the radiating process, impurities such as floating fibers, dust and the like entering the air in the ventilating slots can be filtered by the air filter screen sheet arranged outside the ventilating slots, the dust brought into the plastic shell by the air is reduced, and the dust is prevented from the inside of the shell and the outside of electronic components installed in the shell;

(2) By arranging the storage boxes, the cuttings, the through holes and the calcium chloride particles, the storage boxes can be correspondingly inserted into the ventilation grooves by utilizing the cuttings fixed at two ends respectively at two sides of the top end of the plastic shell in the using process of the plastic shell, after the two groups of storage boxes are respectively fixed at two sides of the interior of the plastic shell, in the outdoor using process of the entrance guard card reader installed on the plastic shell, the moisture in the interior of the plastic shell is increased due to the outside rainy weather, at the moment, the calcium chloride particles are respectively arranged in the storage boxes at two sides, and the calcium chloride particles can adsorb and absorb the moisture generated in the interior of the plastic shell when the plastic shell is used by utilizing the outside through holes, so that the dryness in the interior of the plastic shell is kept, and the condition that components in the shell are affected with moisture and have faults is reduced;

(3) Through being provided with the installation backplate, the draw-in groove, fixture block and installation foot, the entrance guard's card reader that uses the plastic shell is at the in-process of installation, can install fixed back through utilizing the fixed four group's in both sides installation feet in backplate to install earlier, again through utilizing the plastic shell body bottom mounting two sets ofly, correspond from the front end of installation backplate, the inside back of draw-in groove is gone into to the card, can fix the use with the plastic shell body, the later stage is when overhauing the inside subassembly of plastic shell body and maintaining, can through utilize the plastic shell body the fixture block follow the inside roll-off of draw-in groove dismantle can, facilitate the use.

Drawings

FIG. 1 is a schematic view of the front cross-sectional structure of the present invention;

FIG. 2 is a side view of the air filter screen of the present invention showing an enlarged structure of a partial cross-section;

fig. 3 is a schematic side view of a storage box according to the present invention;

fig. 4 is an enlarged schematic view of the overlooking partial section of the clamping groove of the present invention.

In the figure: 1. mounting a back plate; 2. a plastic outer shell; 3. a ventilation slot; 4. a threaded hole; 5. fixing the screw rod; 6. a top cover; 7. a heat radiation fan; 8. storing the box; 9. a card slot; 10. a clamping block; 11. disassembling and assembling screws; 12. an air screen sheet; 13. a fixed leg; 14. cutting; 15. a through hole; 16. calcium chloride particles; 17. and (7) mounting the feet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1: referring to fig. 1-4, a thermoplastic plastic housing comprises a plastic housing body 2 and a top cover 6, wherein a mounting back plate 1 is arranged at the bottom end of the plastic housing body 2, the top end of the plastic housing body 2 is provided with the top cover 6, fixing screws 5 are respectively arranged in four corners at the top end of the top cover 6 in a penetrating manner, threaded holes 4 are respectively arranged in four corners at the top end of the plastic housing body 2, ventilation grooves 3 are respectively vertically arranged in the two sides of each threaded hole 4, storage boxes 8 are respectively arranged on the two sides of the interior of the plastic housing body 2, and clamping grooves 9 are respectively arranged on the two sides of the top end of the mounting back plate 1;

air filter screens 12 are respectively arranged on two sides of the plastic outer shell 2, fixing pins 13 are respectively fixed at the middle positions of two ends of each air filter screen 12, dismounting screws 11 are arranged on one side of each fixing pin 13 in a penetrating manner, screw holes are respectively arranged in the two ends of the plastic outer shell 2, a heat dissipation fan 7 is fixed at the middle position of the rear end of the plastic outer shell 2, ventilating grooves 3 penetrate one side of the plastic outer shell 2, the ventilating grooves 3 are communicated with the inside of the plastic outer shell 2, and six groups of ventilating grooves 3 are respectively arranged in the two sides of the plastic outer shell 2 at equal intervals;

specifically, as shown in fig. 1 and fig. 2, the cooling fan 7 at the rear end of the plastic outer casing 2 can be controlled to start, and by utilizing the multiple sets of ventilation slots 3 arranged inside the two sides of the plastic outer casing 2, external air is sucked in and heat generated when components such as a circuit board and the like mounted inside the plastic outer casing 2 work is dissipated, heat is extracted and removed by the cooling fan 7 through heat exchange, the inside of the casing can be cooled, meanwhile, the two sides outside the plastic outer casing 2 are respectively arranged in the heat dissipation process, an air filter screen 12 is arranged outside the ventilation slots 3, impurities such as floatables and dust entering the air inside the ventilation slots 3 can be filtered, dust brought into the inside of the plastic outer casing 2 by air is reduced, and the inside of the casing and electronic components mounted inside are prevented from dust.

Example 2: through holes 15 are respectively formed in the inner parts of two sides of the storage box 8, calcium chloride particles 16 are arranged in the storage box 8, inserting strips 14 are respectively fixed at two ends of the storage box 8, and inserting grooves are respectively formed in two sides of two ends in the plastic shell 2;

specifically, as shown in fig. 1 and fig. 3, can be in the both sides on plastic shell body 2 top, utilize the inside that the fixed cutting 14 in both ends of storage box 8 corresponds to insert to the slot respectively, fix two sets of storage boxes 8 respectively behind the inside both sides of plastic shell body 2, at the in-process of plastic shell internally mounted's entrance guard's card reader circuit board subassembly in outdoor use, can lead to plastic shell body 2's inside moisture to increase because of outside overcast and rainy weather, it adsorbs the absorption to set up the inside moisture that produces when calcium chloride granule 16 can use plastic shell body 2 through utilizing outside through-hole 15, keep the inside drying of plastic shell body 2, it strains to reduce the trouble that shell internal assembly wets the appearance.

Example 3: mounting pins 17 are respectively fixed inside two ends of the mounting backboard 1, clamping blocks 10 are respectively fixed on two sides of the bottom end of the plastic outer shell 2, the front end of the clamping groove 9 penetrates through the front end of the mounting backboard 1, and the clamping grooves 9 are symmetrically arranged about the vertical center line of the mounting backboard 1;

specifically, as shown in fig. 1 and 4, when using the entrance guard's card reader of plastic shell when the installation, can install 1 installation backplate earlier and utilize four fixed group's in both sides both ends installation foot 17 to install fixed back, the rethread utilizes plastic shell body 2 two sets of bottom mounting, correspond from the front end of installation backplate 1, go into the inside back of draw-in groove 9, can fix the use with plastic shell body 2, the later stage is when overhauing the inside subassembly of plastic shell body 2 and maintaining, can dismantle through utilizing the inside roll-off of fixture block 10 from draw-in groove 9 with plastic shell body 2.

The working principle is as follows: when the utility model is used, the entrance guard card reader using the plastic shell can firstly mount and fix the mounting backboard 1 by four groups of mounting feet 17 fixed at two ends of two sides, then correspondingly clamp the plastic shell 2 into the clamping groove 9 from the front end of the mounting backboard 1 by two groups of bottom fixing, then fix the plastic shell 2 for use, later when the components in the plastic shell 2 are maintained, the plastic shell 2 can slide out and disassemble from the clamping groove 9 by the clamping block 10, meanwhile, when the plastic shell is used, the heat dissipation fan 7 can be started, and the external air is pumped in and the heat generated when the components such as the circuit board and the like mounted in the plastic shell 2 work can be dissipated by utilizing the plurality of ventilation grooves 3 arranged in the two sides of the plastic shell 2, heat exchange is carried out to extract heat from the heat radiating fan 7 to remove the heat, the inside of the housing is radiated, air filter screens 12 are respectively arranged outside the ventilation slots 3 in the process of radiating the heat to filter impurities such as floc and dust in the air entering the ventilation slots 3, the dust brought into the inside of the plastic shell 2 by the air is reduced, the inside of the housing and the outside of electronic components mounted inside are dustproof, in the process of using the plastic shell, storage boxes 8 can be respectively inserted into the inside of the slots by using insertion strips 14 fixed at two ends at two sides of the top end of the plastic shell 2, after the two groups of storage boxes 8 are respectively fixed at two sides of the inside of the plastic shell 2, in the process of using the entrance guard card reader mounted by the plastic shell outdoors, the moisture in the inside of the plastic shell 2 is increased due to the overcast and rainy weather outside, at this time, the calcium chloride particles 16 are respectively arranged in the storage boxes 8 at the two sides, and the calcium chloride particles 16 can adsorb and absorb moisture generated inside when the plastic shell 2 is used through the external through holes 15, so that the inside of the plastic shell 2 is kept dry.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A thermoplastic shell, includes plastic shell body (2) and top cap (6), its characterized in that: the bottom of plastic shell body (2) is provided with installation backplate (1), the top of plastic shell body (2) is provided with top cap (6), the inside of four corners on top of top cap (6) is run through respectively and is provided with clamping screw (5), the inside of four corners on top of plastic shell body (2) is provided with screw hole (4) respectively, the inside of screw hole (4) both sides is vertical ventilation groove (3) that is provided with respectively, the inside both sides of plastic shell body (2) are provided with storage box (8) respectively, the both sides on installation backplate (1) top are provided with draw-in groove (9) respectively.

2. The thermoplastic housing of claim 1, wherein: the plastic shell body (2) is characterized in that air filter screens (12) are arranged on two sides of the plastic shell body (2) respectively, fixing pins (13) are fixed to the middle positions of two ends of the air filter screens (12) respectively, dismounting screws (11) are arranged on one sides of the fixing pins (13) in a penetrating mode, screw holes are formed in the two ends of two sides of the plastic shell body (2) respectively, and cooling fans (7) are fixed to the middle positions of the rear end of the plastic shell body (2).

3. The thermoplastic housing of claim 1, wherein: ventilating groove (3) run through one side of plastic shell body (2), ventilating groove (3) are linked together with the inside of plastic shell body (2), ventilating groove (3) are provided with six groups at the equidistant inside of plastic shell body (2) both sides respectively.

4. The thermoplastic housing of claim 1, wherein: the inside of storage box (8) both sides is provided with through-hole (15) respectively, the inside of storage box (8) is provided with calcium chloride granule (16).

5. The thermoplastic housing of claim 1, wherein: the both ends of storage box (8) are fixed with cutting (14) respectively, the both sides at the inside both ends of plastic shell body (2) are provided with the slot respectively.

6. The thermoplastic housing of claim 1, wherein: the installation backplate (1) is fixed with installation foot (17) respectively in the inside at both ends of both sides, the both sides of plastic shell body (2) bottom are fixed with fixture block (10) respectively.

7. The thermoplastic housing of claim 1, wherein: the front end of the clamping groove (9) penetrates through the front end of the mounting back plate (1).

8. The thermoplastic housing of claim 1, wherein: the clamping grooves (9) are symmetrically arranged relative to the vertical center line of the mounting backboard (1).