CN217591441U

CN217591441U - Screen projection box

Info

Publication number: CN217591441U
Application number: CN202221364288.7U
Authority: CN
Inventors: 王洁; 李平
Original assignee: Shenzhen Tianqu Xingkong Technology Co ltd
Current assignee: Shenzhen Tianqu Xingkong Technology Co ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-10-14
Anticipated expiration: 2032-06-02

Abstract

The utility model discloses a screen projection box, which comprises a shell, a circuit unit and a mounting bracket, wherein the shell is provided with a holding bin, the circuit unit is arranged in the holding bin, the mounting bracket is fixed in the shell, and the circuit unit is mounted on the mounting bracket; the circuit unit is accommodated in the accommodating bin and is arranged at intervals with the accommodating bin, and at least one heat dissipation hole is formed in the bottom of the accommodating bin. The utility model discloses a heat dispersion is good.

Description

Screen projection box

Technical Field

The utility model belongs to the technical field of the smart machine and specifically relates to a throw screen box is related to.

Background

In the prior art, the information can be rapidly shared through the screen projection box, in the screen projection process, a user sends screen projection information needing to be shared to screen projection receiving equipment such as intelligent glasses through the screen projection box, and screen projection content is displayed through the screen projection receiving equipment. The same content can be presented in different presentations through different media.

The screen projection box is used as a transfer device for data transmission, and can generate larger heat in the operation process, so that the screen projection box needs to have better heat dissipation performance to ensure stable operation of the screen projection box, and the heat dissipation of the screen projection box is improved under the reason.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a throw screen box is provided, its heat dispersion is good.

Solve above-mentioned technical problem, the utility model discloses a technical scheme as follows:

a screen projection box, comprising:

a housing provided with a receiving bin;

the circuit unit is arranged in the accommodating bin;

the mounting bracket is fixed inside the shell, and the circuit unit is mounted on the mounting bracket;

the circuit unit is accommodated in the accommodating bin and is arranged at intervals with the accommodating bin, and at least one heat dissipation hole is formed in the bottom of the accommodating bin.

Optionally, the circuit unit and the bottom of the accommodating bin are separated by a preset distance to form a gap, and the gap is communicated with the heat dissipation hole.

Optionally, the number of the heat dissipation holes is two, the two heat dissipation holes are respectively located at two ends of the bottom of the accommodating bin, which are far away from each other, and the two heat dissipation holes are communicated with the gap.

Optionally, the louvers are louvres.

Optionally, two sides of the lower surface of the shell are respectively provided with an arc surface which is tilted upwards, and the heat dissipation holes are formed in the arc surface.

Optionally, the screen projection box comprises a dust screen, and the dust screen is covered on the heat dissipation holes.

Optionally, the circuit unit includes a battery, the battery is located at the bottom of the accommodating bin and forms a gap with the bottom of the accommodating bin, the heat dissipation holes are close to two ends of the battery, and the heat dissipation holes are communicated with the gap, so that an air duct is formed at the bottom of the battery.

Optionally, the battery is attached to the bottom surface of the accommodating chamber.

Optionally, the circuit unit includes a circuit board, the circuit board and the battery are respectively disposed on the upper and lower sides of the mounting bracket, a heat dissipation space is disposed between the circuit board and the mounting bracket, and the heat dissipation space communicates with the heat dissipation holes and the gap.

Optionally, the housing comprises an upper housing and a lower housing, the upper housing and the lower housing are buckled, and the heat dissipation holes are formed in the side edge of the lower housing.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses a circuit unit passes through the installing support and installs in the holding storehouse in the casing for can do the interval setting between circuit unit and the holding storehouse, when circuit unit produced the heat, the air temperature in the above-mentioned interval will rise, and form the convection current through louvre and outside air, thereby take away the heat that circuit unit distributed out fast, improved the heat dispersion of throwing the screen box.

Drawings

Fig. 1 is a schematic perspective view of a second embodiment of the present invention;

fig. 2 is a second perspective view of a second embodiment of the present invention;

fig. 3 is an exploded view of a second embodiment of the present invention;

fig. 4 is a schematic perspective view illustrating a dust screen according to a second embodiment of the present invention fixed inside a lower case;

fig. 5 is a schematic perspective view of the circuit board, the mounting bracket and the battery of the second embodiment of the present invention when mounted in the lower case;

fig. 6 is a schematic perspective view of a circuit board and a battery according to a second embodiment of the present invention when mounted on a mounting bracket;

fig. 7 is a schematic cross-sectional view of a second embodiment of the present invention.

The reference numerals in the drawings mean:

1-an upper shell; 2-a lower shell; 2.1-heat dissipation holes; 2.2-arc surface; 3, accommodating a bin; 4-dust screen; 5-a battery; 6, mounting a bracket; 6.1-struts; 6.2-baffle; 6.3-through holes; 7-a circuit board; 8-clearance; 9-a first screw; 10-a second screw; 11-heat dissipation space.

Detailed Description

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If there is a description of first and second for the purpose of distinguishing technical features only, this is not to be understood as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

The present invention will be further described with reference to the following examples.

The first embodiment is as follows:

the screen projecting box of the first embodiment comprises a shell, a circuit unit and a mounting bracket.

The shell is internally provided with a containing bin, the bottom of the containing bin is provided with at least one heat dissipation hole, the heat dissipation hole is used for forming convection between air in the containing bin and outside air, and the number of the heat dissipation holes is designed according to a convection effect.

The mounting bracket is fixed inside the shell, the circuit unit is mounted on the mounting bracket, and the circuit unit is accommodated in the accommodating bin and arranged at intervals with the accommodating bin. The interval sets up and makes can have sufficient inside air in the space between circuit unit and the holding storehouse, and the heat that circuit unit produced when using can transmit to above-mentioned inside air, and the temperature variation of inside air will make inside air pass through the louvre and form the convection current with the outside air to take away the heat that circuit unit produced fast, provide heat dispersion.

When a heat dissipation hole is designed, the air flows on the heat dissipation hole; when two heat dissipation holes are designed, convection can be performed between the two heat dissipation holes, so that the convection effect can be further enhanced, and the heat dissipation performance can be enhanced; more heat dissipation holes can be arranged under the condition that the strength and the safety permit.

Example two:

fig. 1 to 7 show a projection screen box according to a second embodiment, which includes an upper case 1, a lower case 2, a battery 5, a circuit board 7, a dust screen 4, and a mounting bracket 6. The upper shell 1 and the lower shell 2 are buckled to form a shell of the screen projection box, and the battery 5 and the circuit board 7 are circuit units of the screen projection box.

Wherein, the shell is internally provided with a containing bin 3, and the inner side of the lower shell 2 is the bottom of the containing bin 3. As shown in fig. 6 and 7, the battery 5 and the circuit board 7 are respectively disposed on the upper and lower sides of the mounting bracket 6, the mounting bracket 6 is fixed inside the lower housing 2, the battery 5 and the circuit board 7 are located in the accommodating chamber 3, and the battery 5 and the circuit board 7 are spaced from the accommodating chamber 3, and a gap 8 is formed between the battery 5 and the accommodating chamber 3 by a predetermined distance, and the gap 8 stores internal air. As shown in fig. 7, the battery 5 is located at the bottom of the accommodating chamber 3, a gap is formed between the battery 5 and the bottom of the accommodating chamber 3, and the heat generated by the battery 5 can be transferred to the air in the gap 8.

This embodiment is equipped with louvre 2.1 respectively in the both sides of casing 2 down, and the louvre 2.1 symmetry setting of both sides is located the both ends that 3 bottoms in holding storehouse kept away from each other respectively, and louvre 2.1 closes on the both ends of battery 5, and as shown in fig. 5, two louvres 2.1 all communicate clearance 8 to form the wind channel in battery 5 bottom. In the operation process of the screen projection box, heat generated by the battery 5 and the circuit board 7 is transferred to the internal air in the gap 8, the temperature of the internal air in the gap 8 is increased, and convection with the external air is formed through the heat dissipation holes 2.1. The air duct formed by the communication of the two heat dissipation holes 2.1 and the gap 8 can better form convection so as to better control the temperature in the screen projection box and improve the heat dissipation performance.

As shown in fig. 2, two lower sides of the lower housing 2 of this embodiment are respectively provided with an arc-shaped surface 2.2 tilted upward, and the heat dissipation holes 2.1 are formed in the arc-shaped surface 2.2. The arcwall face 2.2 makes when this throws the screen box and places on the plane, louvre 2.1 can not sheltered from, and can be better with the air formation convection current on outside limit. The heat dissipation holes 2.1 of the present embodiment are louver heat dissipation holes, and are provided with a plurality of parallel strip holes.

Wherein, the heat dissipation holes 2.1 are respectively covered with a dust screen 4, as shown in fig. 4, the dust screen 4 is fixed on the inner wall of the lower casing 2, and the dust screen 4 can block external dust from entering the screen projection box.

In the embodiment, the battery 5 abuts against the bottom surface of the accommodating chamber 3, that is, the battery 5 abuts against the bottom surface of the lower casing 2, and part of the heat of the battery 5 is transferred to the lower casing 2 to be dissipated to the outside more rapidly.

The installing support 6 joint of this embodiment is in casing 2 down to through first screw 9 and casing 2 fixed connection down, battery 5 then fixes between the bottom surface of installing support 6 and casing 2 down, and the bottom of embedding installing support 6 is inlayed at the top of battery 5. A support 6.1 is arranged on the upper surface of the mounting bracket 6, and the circuit board 7 is supported on the support 6.1, limited by a baffle 6.2 on the upper surface of the mounting bracket 6 and fixed by a second screw 10. As shown in fig. 6 and 7, the support 6.1 is disposed such that a heat dissipation space 11 is formed between the circuit board 7 and the mounting bracket 6, the heat dissipation space 11 is communicated with the heat dissipation holes 2.1 and the gap 8, a part of heat generated by the circuit board 7 is transferred to the air in the heat dissipation space 11, and the air in the heat dissipation space 11 is also convected with the outside air through the heat dissipation holes 2.1, thereby quickly taking away the heat of the circuit board 7.

In this embodiment, the mounting bracket 6 is provided with the through hole 6.3, the through hole 6.3 is communicated with the upper side and the lower side of the mounting bracket 6, and part of heat of the battery 5 can be rapidly transferred to the heat dissipation space 11.

The above embodiments of the present invention are not right the utility model discloses the limited protection scope, the utility model discloses an embodiment is not limited to this, all kinds of basis according to the above-mentioned of the utility model discloses an under the above-mentioned basic technical thought prerequisite of the utility model, right according to ordinary technical knowledge and the conventional means in this field the modification, replacement or the change of other multiple forms that above-mentioned structure made all should fall within the protection scope of the utility model.

Claims

1. A screen projection box, comprising:

a housing provided with a receiving bin;

the circuit unit is arranged in the accommodating bin;

2. The projection screen box of claim 1,

the circuit unit and the bottom of the accommodating bin are separated by a preset distance to form a gap, and the gap is communicated with the heat dissipation hole.

3. The projection screen box of claim 2,

the number of the heat dissipation holes is two, the two heat dissipation holes are respectively located at two ends, far away from each other, of the bottom of the accommodating bin, and the two heat dissipation holes are communicated with the gap.

4. The projection screen box of claim 3,

the heat dissipation holes are blind window heat dissipation holes.

5. The projection screen box of claim 1,

the two sides of the lower surface of the shell are respectively provided with an arc surface which is tilted upwards, and the heat dissipation holes are formed in the arc surfaces.

6. The projection screen box of claim 1,

the screen projection box comprises a dust screen, and the dust screen is covered on the heat dissipation holes.

7. The projection screen box of claim 3,

the circuit unit comprises a battery, the battery is located at the bottom of the accommodating bin and forms a gap with the bottom of the accommodating bin, the heat dissipation holes are close to two ends of the battery, and the heat dissipation holes are communicated with the gap, so that an air channel is formed at the bottom of the battery.

8. The projection screen box of claim 7,

the battery is attached to the bottom surface of the accommodating bin.

9. The projection screen box of claim 7 or 8,

the circuit unit comprises a circuit board, the circuit board and the battery are respectively arranged on the upper side and the lower side of the mounting bracket, a heat dissipation space is arranged between the circuit board and the mounting bracket, and the heat dissipation space is communicated with the heat dissipation holes and the gap.

10. The projection screen box of claim 1,

the shell comprises an upper shell and a lower shell, the upper shell and the lower shell are buckled, and the heat dissipation holes are formed in the side edge of the lower shell.