CN117781389A - Linear furred ceiling electrical apparatus - Google Patents

Abstract

The invention discloses a linear ceiling electrical appliance which fully sucks indoor air and does not suck air above a ceiling plate. A linear ceiling electric appliance comprises a shell, a blowing module and a ventilation module; the two blowing modules and the ventilation module are spliced and arranged in the shell for fixation; the shell is long, the front surface and the rear surface of the shell are communicated, and air holes are formed in the bottom surface of the shell; one side of the bottom of the blowing module is used for sucking indoor gas, and the other side of the bottom of the blowing module is used for blowing out the gas to the indoor; the bottom of the ventilation module sucks in indoor air, and one side surface of the ventilation module blows out air to the outside.

Description

Linear furred ceiling electrical apparatus

Technical Field

The invention belongs to the technical field of bathroom heaters, and particularly relates to a linear ceiling electric appliance.

Background

The integrated ceiling electric appliance comprises three modules of an illumination electric appliance, a ventilator and a warmer in a broad sense, namely a lamp for illumination, a ventilator for ventilation and a bathroom heater for heating (comprising a lamp heater and a fan heater).

The prior integrated ceiling electric appliance adopts a panel and box combined assembly structure, the panel is embedded and installed below the triangular joist, the box is placed above the triangular joist, and a gap exists between the panel and the box. When the existing box body needs to suck air, the air above the ceiling plate is sucked, so that the air below the ceiling plate (indoor) is not sufficiently sucked, the air suction efficiency of the box body is lost, and the ventilation or heating effect is influenced.

Disclosure of Invention

In view of the above-mentioned drawbacks of the background art, an object of the present invention is to provide a linear ceiling electrical appliance that sufficiently sucks in the air in the room, not sucking in the air above the ceiling panel.

In order to solve the technical problems, the aim of the invention is realized as follows:

a linear ceiling electric appliance comprises a shell, a blowing module and a ventilation module; the two blowing modules and the ventilation module are spliced and arranged in the shell for fixation; the shell is long, the front surface and the rear surface of the shell are communicated, and air holes are formed in the bottom surface of the shell;

one side of the bottom of the blowing module is used for sucking indoor gas, and the other side of the bottom of the blowing module is used for blowing out the gas to the indoor; the bottom of the ventilation module sucks in indoor air, and one side surface of the ventilation module blows out air to the outside.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the screw penetrates through the top wall of the shell and is fixedly connected with a blowing module and a ventilation module;

two parallel first slots are formed in the outer surface of the bottom wall of the shell in a protruding mode; a first barrier strip is oppositely protruded at the bottom opening of the first slot;

the utility model also comprises a keel connecting strip; the keel connecting strip comprises a first inserting strip inserted into the first slot, a first bent clamping strip is protruded from the bottom surface of the first inserting strip, and one end part of the first clamping strip is used for being embedded into the triangular keel opening for fixation;

the air outlet grille is arranged on the air outlet strip; the bolt passes through the air outlet strip and is connected with the bottom wall of the shell.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the blowing module comprises a blowing bottom shell and a blowing upper cover;

the blowing bottom shell comprises a blowing bottom plate, a vertical blowing motor is fixed on the blowing bottom plate, and a blowing impeller is arranged on the blowing motor; a first impeller baffle plate is protruded on the blowing bottom plate and is arranged around one side of the blowing impeller; the air blowing bottom shell further comprises an air blowing upper plate, an air blowing front plate and an air blowing rear plate which are connected with the air blowing bottom plate;

two first T-shaped clamping blocks are protruded from the edges of one side of the air blowing front plate and one side of the air blowing rear plate, and two first clamping grooves are formed in the edges of the other side of the air blowing front plate and the other side of the air blowing rear plate; the first T-shaped clamping block is inserted into the first clamping groove for fixing;

the upper blowing cover comprises a blowing cover plate; a first air inlet hole is formed in one side of the air blowing cover plate, the periphery of the first air inlet hole on the air blowing cover plate is bent to form a first impeller cover plate, and the first impeller cover plate is spliced with the first impeller baffle plate;

an air inlet chamber is formed between the first impeller cover plate and the blowing front plate, the air inlet chamber is communicated with the chamber, and an air outlet chamber is formed between the blowing upper cover and the blowing bottom plate.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the PTC heater is also included; the PTC heater is positioned at one side of the blowing impeller and is fixed between the blowing bottom shell and the blowing upper cover;

the PTC heater comprises a PTC bracket and a PTC heating block; the PTC bracket comprises a bracket bottom plate, and a plurality of grille air holes are formed in the bracket bottom plate; the two side edges of the bracket bottom plate are respectively provided with a bracket side plate, and the inner surface of each bracket side plate is protruded with a bracket clamping block;

the PTC heating block is inserted into the two bracket side plate brackets, and the bracket clamping block is abutted against the PTC heating block for fixing.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: wing-shaped spoilers are protruded on the blowing bottom plate; the wing-shaped spoiler is arranged on the blowing side of the blowing impeller; the wing-shaped spoiler is outwards bent to be arc-shaped from the blowing impeller, and the upper surface of one end part of the wing-shaped spoiler, which is close to the blowing impeller, is outwards protruded to form a convex surface.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: a plurality of wing-shaped spoilers are arranged on the blowing bottom plate; the lengths of the wing-shaped spoilers are increased from bottom to top.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: one side of the blowing bottom plate is sunken to form a first pit; a PCB is arranged in the first pit;

the inner surface of the blowing bottom plate, the inner surface of the blowing upper plate and the inner surface of the blowing front plate are all adhered with sound absorbing cotton.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the upper blowing cover is provided with a raised reinforcing strip; the bolts penetrate through the blowing front plate and are connected with the reinforcing bars, and the reinforcing bars are arranged in a staggered manner;

the upper blowing plate is provided with a steady flow hole;

the two blowing modules are spliced, and the two PTC heaters are adjacently arranged.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the ventilation module comprises a ventilation bottom shell and a ventilation upper cover;

the ventilation bottom shell comprises a ventilation bottom plate, a ventilation upper plate, a ventilation lower plate and a ventilation front plate; a vertical ventilation motor is arranged on the ventilation bottom plate, and a ventilation wind wheel is arranged on the ventilation motor; a second impeller baffle is protruded on the ventilation bottom plate and is arranged around one side of the ventilation impeller; the ventilation lower plate is provided with a first air suction hole; two second T-shaped clamping blocks are protruded from the edge of one side of the ventilation front plate, and two second clamping grooves are formed in the edge of the other side of the ventilation front plate;

one side of the ventilation upper cover is bent to form a second impeller cover plate, and a second air inlet hole is formed in the second impeller cover plate; the bolts penetrate through the ventilation upper cover and are fixedly connected with the ventilation bottom shell, and the second impeller cover plate is spliced with the second impeller baffle plate;

a plurality of arc spoilers which are parallel to each other are protruded on the ventilation bottom plate, and the arc spoilers are arranged on the air outlet side of the ventilation impeller.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: noise reduction holes are formed in the ventilation upper plate.

Compared with the prior art, the invention has the following outstanding and beneficial technical effects:

compared with the prior art, the linear ceiling electric appliance comprises a shell, wherein the shell is long and is different from the existing box body; the shell is internally provided with a blowing module and a ventilation module, and the two modules can be spliced with each other;

the shell is arranged between the two triangular keels, the air blowing module only sucks indoor air, the air suction is not performed above the suspended ceiling plate, the air is blown into the room, and the air is circulated only through the room below the suspended ceiling plate; the gas in the sucked room is sufficient, and the circulation and ventilation effects are high.

Drawings

Fig. 1 is a schematic view of the overall explosive structure of the present invention.

Fig. 2 is a schematic diagram of the overall use structure of the present invention.

Fig. 3 is a schematic view of the overall assembly structure of the present invention.

Fig. 4 is a schematic overall structure of the present invention.

Fig. 5 is a schematic view of the overall explosive structure of the present invention.

Fig. 6 is a schematic diagram of a blower module structure according to the present invention.

Fig. 7 is an exploded view of the blower module according to the present invention.

FIG. 8 is a schematic diagram of a ventilation module according to the present invention.

FIG. 9 is an exploded view of the ventilation module of the present invention.

Fig. 10 is a schematic view of the PTC heater installation structure of the present invention.

Reference numerals: a housing 01; air holes 010; a first slot 011; a first barrier 0110; a keel connecting bar 02; a first slip 020; a first snap bar 0200; a blowing module 03; a blowing bottom case 030; a blowing floor 0300; first impeller baffle 03000; airfoil spoilers 03001; convexity 03002; first pit 03003; a blowing upper plate 0301; a steady flow orifice 03010; a blowing front plate 0302; a first T-shaped clip 03020; a first slot 03021; a blowing back plate 0303; a blowing upper cover 031; a blowing cover plate 0310; a first air inlet 03100; a first impeller cover plate 03101; an air inlet chamber 0311; reinforcement bars 0312; a stiffener 03120; a blowing motor 032; a blower impeller 033; a PTC heater 04; PTC holder 040; a bracket bottom plate 0400; grid air holes 0401; a bracket side plate 0402; a bracket clamping block 0403; PTC heating block 041; a PCB 05; a sound absorbing cotton 06; a ventilation module 07; a ventilation bottom shell 070; a ventilation floor 0700; a second impeller baffle 07000; arc spoiler 07001; a ventilation upper plate 0701; noise reduction aperture 07010; a ventilation lower plate 0702; a first suction hole 07020; a ventilation front plate 0703; a second T-shaped clamp block 07030; a second clamping groove 07031; a ventilation motor 071; a ventilation wind wheel 072; a ventilation upper lid 073; a second impeller cover plate 0730; a second air inlet 07300; an air outlet strip 08; an outlet grille 080;

Detailed Description

The invention will be further described with reference to the following specific examples in conjunction with the accompanying drawings;

the embodiment provides a linear ceiling electric appliance, which comprises a shell 01, a blowing module 03 and a ventilation module 07; the two blowing modules 03 and one ventilation module 07 are spliced and arranged in the shell 01 for fixation; alternatively, a blowing module 03 and a ventilation module 07 can be spliced and installed in the shell 01; in order to achieve better blowing effect, in this embodiment, two blowing modules 03 and one ventilation module 07 are selected;

the shell 01 is long, the front surface and the rear surface of the shell are communicated, and the bottom surface of the shell is provided with air holes 010; the shell is made of metal plates through a sheet metal process and is strip-shaped, and is different from the box shape of the existing box body, so that the volume is reduced, the use of a panel is eliminated, and the functional effect is more direct and concise;

one side of the bottom of the blowing module 03 sucks in indoor gas, and the other side of the bottom of the blowing module 03 blows out the gas into the room; the bottom of the ventilation module 07 sucks in indoor air, and one side surface of the ventilation module 07 blows out air to the outside.

As described above, the blowing module 03 directly sucks the indoor gas (below the ceiling board) through the air hole 010, and then blows the indoor gas through treatment, so as to achieve the effects of indoor gas flow and circulation, namely the effect similar to the internal circulation of automobile gas; the air suction efficiency is high, and the air suction amount is sufficient;

similarly, the ventilation module 07 only sucks in indoor air and blows the air to the outside to achieve efficient ventilation effect;

the production process comprises the following steps:

s1, preparing a shell by bending, punching and welding a metal plate; the shell is long, the front surface and the rear surface of the shell are communicated, and air holes are formed in the bottom surface of the shell;

the shell is made of metal plates through a sheet metal process and is strip-shaped, and is different from the box shape of the existing box body, so that the volume is reduced, the use of a panel is eliminated, and the functional effect is more direct and concise;

s2, assembling a blowing module and an air exchanging module; the two blowing modules are spliced, and the ventilation module and the blowing module are spliced into a strip shape; inserting into the shell for fixing;

s3, the shell is arranged between the triangular keel suspended ceilings; one side of the bottom of the blowing module is used for sucking indoor gas, and the other side of the bottom of the blowing module is used for blowing out the gas to the indoor; the bottom of the ventilation module sucks in indoor air, and one side surface of the ventilation module blows out air to the outside.

Further, the screw penetrates through the top wall of the shell 01 to be fixedly connected with a blowing module 03 and a ventilation module 07; the screw is used for fixation, so that the maintenance can be disassembled;

two parallel first slots 011 are formed on the outer surface of the bottom wall of the shell 01 in a protruding manner; the first slot 011 is disposed along the housing; a first barrier rib 0110 is relatively protruded at the bottom opening of the first slot 011; the two first blocking strips 0110 narrow the opening of the first slot 011 for limiting;

the utility model also comprises a keel connecting strip 02; the keel connecting strip 02 is made of metal strips; the keel connecting strip 02 comprises a first inserting strip 020 inserted into a first slot 011, a first bending clamping strip 0200 is protruded from the bottom surface of the first inserting strip 020, and one end part of the first clamping strip 0200 is used for being embedded into the triangular keel opening for internal fixation.

As described above, the first cutting 020 of the keel connecting bar 02 is inserted into the first slot 011 of the housing 01 to be fixed therein, and then the other end of the keel connecting bar 02 is embedded into the triangular keels to be fixed therein, i.e. the housing 01 is mounted between two triangular keels.

The length of the shell 01 can be matched with the specification and the size of a single ceiling plate (aluminum buckle plate), so that the shell 01 is used when being disassembled and assembled;

further, the blowing module 03 includes a blowing bottom case 030 and a blowing upper cover 031; the blowing bottom shell 030 and the blowing upper cover 031 are integrally formed by adopting plastic materials;

as shown in fig. 6 and 7, the blowing bottom shell 030 includes a blowing bottom plate 0300, a vertical blowing motor 032 is fixed on the blowing bottom plate 0300, and a blowing impeller 033 is mounted on the blowing motor 032; the blowing motor 032 drives the blowing impeller 033 to rotate, and the blowing motor 032 is vertically arranged, so that the whole tiled volume is reduced;

a first impeller baffle 03000 protrudes from the blowing baseplate 0300, and the first impeller baffle 03000 is arranged around one side of the blowing impeller 033; the first impeller baffle 03000 separates the blowing bottom plate 0300 and also shields the blowing impeller 033;

the blowing bottom shell 030 further comprises a blowing upper plate 0301, a blowing front plate 0302 and a blowing rear plate 0303 which are connected with the blowing bottom plate 0300; the front blowing plate 0302 and the rear blowing plate 0303 are encircled to form a box shape;

two first T-shaped clamping blocks 03020 are protruded at the edges of one side of the front blowing plate 0302 and one side of the rear blowing plate 0303, and two first clamping grooves 03021 are formed at the edges of the other side of the front blowing plate 0302 and the other side of the rear blowing plate 0303; the first T-shaped clamping block 03020 is inserted into the first clamping groove 03021 for fixation;

the front and back adjacent blowing modules 03 are inserted through the first T-shaped blocks and the first clamping grooves 03021 to realize splicing; the splicing number is arbitrary according to different design requirements;

the blowing upper cover 031 includes a blowing cover plate 0310; a first air inlet 03100 is formed in one side of the air blowing cover plate 0310, the periphery of the first air inlet 03100 on the air blowing cover plate 0310 is bent to form a first impeller cover plate 03101, and the first impeller cover plate 03101 is spliced with a first impeller baffle 03000; the first impeller cover plate 03101 shields the blade side surfaces of the blowing impeller 033, reduces the generation of blowing back flow, and enables the air blown into the room to pass through the blowing cover plate 0310;

an air inlet chamber 0311 is formed between the first impeller cover plate 03101 and the blowing front plate 0302, the air inlet chamber 0311 is communicated with the room, and an air outlet chamber is formed between the blowing upper cover 031 and the blowing bottom plate 0300. After the product is spliced, the shell 01 is used as a part of a volute air duct;

as described above, as shown in fig. 6, the blower module 03 is placed in the housing, and the housing becomes the housing of the blower module 03, that is, the air inlet chamber 0311 is a space with an opening at the bottom and closed at other places; the first impeller cover plate 03101 is stepped in a staggered manner, and a gap is formed between the first impeller cover plate and the casing so as to be capable of sucking gas. Meanwhile, a space is reserved for the blowing impeller 033, so that impeller airflow circulation is facilitated;

the shell is used for installation and also used as a shell, so that the width of the blowing module 03 is reduced, and the effect of multiple purposes is achieved;

further, the PTC heater 04 is also included; the PTC heater 04 is positioned at one side of the blowing impeller 033, and the PTC heater 04 is fixed between the blowing bottom shell 030 and the blowing upper cover 031; the PTC heater 04 heats the passing gas, and blows hot air into the room.

As shown in fig. 10, the PTC heater 04 includes a PTC bracket 040 and a PTC heating block 041; the PTC heating block 041 is a conventional ceramic heating block in a long strip shape; the PTC bracket 040 comprises a bracket bottom plate 0400, and a plurality of grid air holes 0401 are formed in the bracket bottom plate 0400; the edges of two sides of the bracket bottom plate 0400 are respectively provided with a bracket side plate 0402, and the inner surface of the bracket side plate 0402 is protruded with a bracket clamping block 0403;

the PTC heating block is inserted into the two support side plates 0402, and the support clamping block 0403 is abutted against the PTC heating block for fixing.

As described above, in the specific use process, the PTC heating block 041 is inserted between the side plates 0402 of the bracket, and is propped and fixed by the clamping blocks 0403 of the bracket, so that the PTC heating block is not easy to separate; the PTC bracket 040 is arranged between the blowing bottom shell 030 and the blowing upper cover 031, and a self-tapping screw penetrates through the two to be fixedly connected;

further, an airfoil spoiler 03001 protrudes from the blowing bottom plate 0300; the wing spoiler 03001 is arranged on the blowing side of the blowing impeller 033; the wing spoiler 03001 is curved outwards from the blowing impeller 033 to form an arc shape, and the upper surface of one end part of the wing spoiler 03001 close to the blowing impeller 033 protrudes outwards to form a convex surface 03002.

As described above, the wing spoiler 03001 separates the blown air, so that the air flow uniformly reaches the surface or the air outlet of the PPTC heater 04, the human body feel is more comfortable, and the feeling that one side is concentrated and the other side is windless is avoided;

the convex face 03002 (i.e., windward face) of airfoil spoiler 03001 is designed so that, to reduce gas turbulence,

further, a plurality of wing-shaped spoilers 03001 are arranged on the blowing bottom plate 0300; the length of the plurality of airfoil spoilers 03001 increases from bottom to top.

As described above, in order to achieve the optimal air-out uniformity effect, a plurality of airfoil spoilers 03001 may be provided; the length and the radian of the liquid are increased one by one, and the liquid is drained to an outlet;

further, a first pit 03003 is formed on one side of the blowing bottom plate 0300 in a recessed manner; a PCB 05 is arranged in the first pit 03003; one side part of the plate body of the blowing bottom plate 0300 is offset towards the middle of the blowing upper plate 0301 to form a first pit 03003 on two sides, and the PCB 05 to be installed is fixed in the first pit 03003, so that the space utilization rate is increased;

the inner surface of the blowing bottom plate 0300, the inner surface of the blowing upper plate 0301 and the inner surface of the blowing front plate 0302 are all adhered with sound absorbing cotton 06.

As described above, according to the demand, the sound absorbing cotton 06 can be attached to the vacant place, thereby reducing noise.

Further, the blowing upper cover 031 is provided with a protruding reinforcing bar 0312; the bolts penetrate through the blowing front plate 0302 and are connected with the reinforcing bars 0312, and the reinforcing bars 0312 are internally provided with reinforcing bars 03120 which are staggered; the reinforcement bars 0312 are connected with the blowing front plate 0302, so that shaking is avoided, and damage is reduced.

The upper blowing plate 0301 is provided with a steady flow hole 03010.

As described above, the steady flow hole 03010 can reduce airflow noise to the maximum extent and increase airflow flow; after the product is spliced, the shell 01 is used as a part of a volute air duct;

further, the ventilation module 07 includes a ventilation bottom shell 070 and a ventilation upper cover 073; the ventilation bottom shell 070 and the ventilation upper cover 073 are also integrally formed by plastic materials;

as shown in fig. 8 and 9, the ventilation bottom shell 070 includes a ventilation bottom plate 0700, a ventilation upper plate 0701, a ventilation lower plate 0702, and a ventilation front plate 0703; the ventilation bottom shell 070 is box-shaped; a vertical ventilation motor 071 is arranged on the ventilation bottom plate 0700, and a ventilation wind wheel 072 is arranged on the ventilation motor 071; a second impeller baffle 07000 is protruded on the ventilation baseplate 0700, and the second impeller baffle 07000 is arranged around one side of the ventilation impeller; a first air suction hole 07020 is formed in the ventilation lower plate 0702; two second T-shaped clamping blocks 07030 are protruded from the edge of one side of the ventilation front plate 0703, and two second clamping grooves 07031 are formed in the edge of the other side of the ventilation front plate 0703;

one side of the ventilation upper cover 073 is bent to form a second impeller cover 0730, and a second air inlet 07300 is formed in the second impeller cover 0730; bolts penetrate through the ventilation upper cover 073 and are fixedly connected with the ventilation bottom shell 070, and the second impeller cover plate 0730 is spliced with the second impeller baffle 07000.

As described above, the ventilation module 07 is also configured such that the ventilation module 07 sucks in indoor air by a vertically arranged ventilation impeller and blows the sucked indoor air to the outside; the ventilation module 07 is wrapped by the shell 01, and the first air suction holes 07020 are used for sucking air, so that the ventilation effect of indoor air is improved;

further, a plurality of arc spoilers 07001 parallel to each other are protruded on the ventilation bottom plate 0700, and the arc spoilers 07001 are arranged on the air outlet side of the ventilation impeller.

As described above, as shown in fig. 9, the arc-shaped spoilers 07001 are arranged in parallel up and down; when fast air-out, arc spoiler 07001 can reduce the vibrations of taking a breath module 07, makes its air-out steady.

Further, the air outlet strip 08 is made of plastic strips or metal strips, and the air outlet strip 08 is long and matched with the 01 specification of the shell; an air outlet grille 080 is arranged on the air outlet strip 08; the air outlet grille 080 is opposite to the air hole 010 of the shell 01; the bolts penetrate through the air outlet strips 08 and are connected with the bottom wall of the shell 01.

As described above, the air outlet strip 08 can be used as a decorative strip to cover the bottom surface of the casing 01, and is matched with the decoration of the side ceiling board, so that two purposes are achieved;

further, the two blowing modules 03 are spliced, and the two PTC heaters 04 are adjacently arranged. Increasing the air quantity of the hot air;

the two blowing modules 03 are placed in the front and back directions so that the air outlet directions can be spliced together. If the two sets of fans are not placed in the opposite directions, the rotation directions of the impellers of the two sets of fans are opposite, and the same impeller cannot be used.

Further, the ventilation upper plate 0701 is provided with a noise reduction hole 07010. The long-strip-shaped shell 01 is used as a part of the volute air duct to reduce airflow noise.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships conventionally put in place when the inventive product is used, or the directions or positional relationships conventionally understood by those skilled in the art are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected;

the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention in this way, therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.

Claims (10)

1. A linear ceiling electrical appliance, characterized in that: comprises a shell, a blowing module and a ventilation module; the two blowing modules and the ventilation module are spliced and arranged in the shell for fixation; the shell is long, the front surface and the rear surface of the shell are communicated, and air holes are formed in the bottom surface of the shell;

one side of the bottom of the blowing module is used for sucking indoor gas, and the other side of the bottom of the blowing module is used for blowing out the gas to the indoor; the bottom of the ventilation module sucks in indoor air, and one side surface of the ventilation module blows out air to the outside.

2. The linear ceiling appliance of claim 1, wherein: the screw penetrates through the top wall of the shell and is fixedly connected with a blowing module and a ventilation module;

two parallel first slots are formed in the outer surface of the bottom wall of the shell in a protruding mode; a first barrier strip is oppositely protruded at the bottom opening of the first slot;

the utility model also comprises a keel connecting strip; the keel connecting strip comprises a first inserting strip inserted into the first slot, a first bent clamping strip is protruded from the bottom surface of the first inserting strip, and one end part of the first clamping strip is used for being embedded into the triangular keel opening for fixation;

the air outlet grille is arranged on the air outlet strip; the bolt passes through the air outlet strip and is connected with the bottom wall of the shell.

3. The linear ceiling appliance of claim 1, wherein: the blowing module comprises a blowing bottom shell and a blowing upper cover;

the blowing bottom shell comprises a blowing bottom plate, a vertical blowing motor is fixed on the blowing bottom plate, and a blowing impeller is arranged on the blowing motor; a first impeller baffle plate is protruded on the blowing bottom plate and is arranged around one side of the blowing impeller; the air blowing bottom shell further comprises an air blowing upper plate, an air blowing front plate and an air blowing rear plate which are connected with the air blowing bottom plate;

two first T-shaped clamping blocks are protruded from the edges of one side of the air blowing front plate and one side of the air blowing rear plate, and two first clamping grooves are formed in the edges of the other side of the air blowing front plate and the other side of the air blowing rear plate; the first T-shaped clamping block is inserted into the first clamping groove for fixing;

the upper blowing cover comprises a blowing cover plate; a first air inlet hole is formed in one side of the air blowing cover plate, the periphery of the first air inlet hole on the air blowing cover plate is bent to form a first impeller cover plate, and the first impeller cover plate is spliced with the first impeller baffle plate;

an air inlet chamber is formed between the first impeller cover plate and the blowing front plate, the air inlet chamber is communicated with the chamber, and an air outlet chamber is formed between the blowing upper cover and the blowing bottom plate.

4. The linear ceiling appliance of claim 3, wherein: the PTC heater is also included; the PTC heater is positioned at one side of the blowing impeller and is fixed between the blowing bottom shell and the blowing upper cover;

the PTC heater comprises a PTC bracket and a PTC heating block; the PTC bracket comprises a bracket bottom plate, and a plurality of grille air holes are formed in the bracket bottom plate; the two side edges of the bracket bottom plate are respectively provided with a bracket side plate, and the inner surface of each bracket side plate is protruded with a bracket clamping block;

the PTC heating block is inserted into the two bracket side plate brackets, and the bracket clamping block is abutted against the PTC heating block for fixing.

5. The linear ceiling appliance of claim 3, wherein: wing-shaped spoilers are protruded on the blowing bottom plate; the wing-shaped spoiler is arranged on the blowing side of the blowing impeller; the wing-shaped spoiler is outwards bent to be arc-shaped from the blowing impeller, and the upper surface of one end part of the wing-shaped spoiler, which is close to the blowing impeller, is outwards protruded to form a convex surface.

6. The linear ceiling appliance of claim 5, wherein: a plurality of wing-shaped spoilers are arranged on the blowing bottom plate; the lengths of the wing-shaped spoilers are increased from bottom to top.

7. The linear ceiling appliance of claim 3, wherein: one side of the blowing bottom plate is sunken to form a first pit; a PCB is arranged in the first pit;

the inner surface of the blowing bottom plate, the inner surface of the blowing upper plate and the inner surface of the blowing front plate are all adhered with sound absorbing cotton.

8. The linear ceiling appliance of claim 3, wherein: the upper blowing cover is provided with a raised reinforcing strip; the bolts penetrate through the blowing front plate and are connected with the reinforcing bars, and the reinforcing bars are arranged in a staggered manner;

the upper blowing plate is provided with a steady flow hole.

9. The linear ceiling appliance of claim 1, wherein: the ventilation module comprises a ventilation bottom shell and a ventilation upper cover;

the ventilation bottom shell comprises a ventilation bottom plate, a ventilation upper plate, a ventilation lower plate and a ventilation front plate; a vertical ventilation motor is arranged on the ventilation bottom plate, and a ventilation wind wheel is arranged on the ventilation motor; a second impeller baffle is protruded on the ventilation bottom plate and is arranged around one side of the ventilation impeller; the ventilation lower plate is provided with a first air suction hole; two second T-shaped clamping blocks are protruded from the edge of one side of the ventilation front plate, and two second clamping grooves are formed in the edge of the other side of the ventilation front plate;

one side of the ventilation upper cover is bent to form a second impeller cover plate, and a second air inlet hole is formed in the second impeller cover plate; the bolts penetrate through the ventilation upper cover and are fixedly connected with the ventilation bottom shell, and the second impeller cover plate is spliced with the second impeller baffle plate;

a plurality of arc spoilers which are parallel to each other are protruded on the ventilation bottom plate, and the arc spoilers are arranged on the air outlet side of the ventilation impeller.

10. The linear ceiling appliance of claim 9, wherein: noise reduction holes are formed in the ventilation upper plate.