CN218781420U - Air treatment unit - Google Patents

Abstract

The utility model discloses an air handling unit, which relates to the technical field of air conditioning equipment and comprises a box body, a box door, a supporting frame, a fan assembly and an electric control assembly, wherein the box door is detachably arranged on the box body; when the air handling unit is in a normal working state, the electric control box is stored between the fan assembly and the box door, when the fan assembly needs to be maintained, the electric control box is turned to the outside of the box body through the opening of the box body, the blockage of the fan assembly by the electric control box is avoided, after-sales personnel can conveniently maintain the fan assembly, the steps of disassembling the electric control box are reduced, and the maintenance efficiency and the safety are improved.

Description

Air treatment unit

Technical Field

The utility model relates to an air conditioning equipment technical field, in particular to air handling unit.

Background

In the correlation technique, the equal fixed mounting of the hot module is assisted to traditional air treatment unit's automatically controlled box, fan and electricity in the box, and the position overall arrangement is crisscross each other moreover, for example need dismantle automatically controlled box earlier when maintaining the fan, need just can take out after dismantling automatically controlled box earlier when maintaining the electricity and assisting the hot module, leads to the later stage to overhaul and maintain very inconveniently.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an air treatment unit can conveniently realize the maintenance of fan subassembly under the condition of not dismantling automatically controlled box.

According to the utility model discloses air treatment unit, include: the box body is internally provided with an installation cavity, and the peripheral wall of the box body is provided with an opening communicated with the installation cavity; the box door is detachably arranged on the box body and covers the opening; the supporting frame is arranged in the mounting cavity; the fan assembly is arranged on the supporting frame; and the electric control assembly comprises an electric control box and a connecting piece, the connecting piece is connected with the peripheral wall of the box body, and the electric control box is rotationally connected with the box body through the connecting piece, so that the electric control box has a first state of being accommodated between the fan assembly and the box door and a second state of being turned to the outside of the box body through the opening.

According to the utility model discloses air treatment unit has following beneficial effect at least:

by arranging the electric control assembly comprising the electric control box and the connecting piece, the electric control box realizes relative rotation with the box body through the connecting piece connected to the peripheral wall of the box body, so that the electric control box can rotate inside and outside the box body; when the air handling unit is in a normal working state, the electric control box is stored between the fan assembly and the box door, when the fan assembly needs to be maintained, the electric control box is turned to the outside of the box body through the opening of the box body, the blockage of the fan assembly by the electric control box is avoided, after-sales personnel can conveniently maintain the fan assembly, the steps of disassembling the electric control box are reduced, and the maintenance efficiency and the safety are improved.

According to some embodiments of the utility model, the fan subassembly with support frame sliding fit, automatically controlled box is in during the second state, the fan subassembly can pass through the opening roll-off extremely the outside of box.

According to some embodiments of the utility model, the connecting piece includes the fixed part and the rotation portion of rotating the connection, the fixed part with box fixed connection, rotation portion with automatically controlled box fixed connection.

According to the utility model discloses a some embodiments, the fixed part is followed box direction of height's both ends are equipped with first journal stirrup respectively, rotation portion follows box direction of height's both ends are equipped with the second journal stirrup, two respectively the second journal stirrup with correspond through pivot, round pin axle or rivet connection between the first journal stirrup.

According to some embodiments of the utility model, automatically controlled box includes first box body and panel, first box body with connecting piece fixed connection, the panel can be dismantled and locate first box body orientation one side of chamber door.

According to some embodiments of the utility model, automatically controlled box still includes second box body and protective cover, second box body fixed connection in the upper end of first box body, the protective cover can be dismantled and locate the top of second box body.

According to some embodiments of the utility model, the protective cover is equipped with one of first buckle of matched with and first calorie of hole along one side of fore-and-aft direction, the second box body is equipped with another, the protective cover with the second box body passes through bolted connection along the opposite side of fore-and-aft direction.

According to the utility model discloses a some embodiments, automatically controlled box still includes cassette holder and third box body, cassette holder fixed connection in the upper end of first box body, and with the second box body sets up side by side, the third box body can dismantle connect in the cassette holder.

According to some embodiments of the utility model, one side of third box body along the fore-and-aft direction is equipped with one of them in matched with second buckle and the second calorie of hole, the box seat is equipped with another, the third box body with the box seat passes through bolted connection along the opposite side of fore-and-aft direction.

According to some embodiments of the invention, the third box body orientation one side of connecting piece is equipped with the fin, the fin extends along the fore-and-aft direction.

According to some embodiments of the utility model, the air treatment unit still includes the electric heating element of assisting, the electric heating element of assisting demountable installation in the support frame.

According to some embodiments of the utility model, the air treatment unit still includes the support, support fixed connection in the upper end of support frame, the support is formed with and is used for dodging the space of automatically controlled box, the electricity assist the heat subassembly install in the support, and with automatically controlled subassembly is followed the direction of height interval of box sets up.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention will be further described with reference to the following drawings and examples, in which:

fig. 1 is a schematic front view of an air handling unit according to an embodiment of the present invention, in which a door is removed and an electrical control box is in a first state;

FIG. 2 is a schematic perspective view of the air handling unit of FIG. 1 with a panel of the electronic control assembly removed;

fig. 3 is a schematic perspective view of an air handling unit according to an embodiment of the present invention, wherein the electrical control box is in a second state;

FIG. 4 is a schematic illustration of the fan assembly of the air handling unit shown in FIG. 3 as it is being withdrawn from the housing;

FIG. 5 is an enlarged, fragmentary view of the attachment of the air handling unit shown in FIG. 3;

fig. 6 is an enlarged schematic view of an electric control assembly of an air handling unit according to an embodiment of the present invention;

fig. 7 is a schematic view of the electronic control assembly of fig. 6 with the panel and the cover removed;

fig. 8 is a schematic view of a protective cover of the electronic control assembly shown in fig. 6;

fig. 9 is a schematic view of another perspective of the protective cover of the electronic control assembly shown in fig. 6;

fig. 10 is a structural diagram illustrating a view angle when the third cover of the electronic control assembly shown in fig. 6 is installed;

fig. 11 is a schematic structural diagram of another view angle when the third cover of the electronic control assembly shown in fig. 6 is installed.

Reference numerals:

a fan case 1000;

a case 100; a mounting cavity 110; an opening 120;

a fan assembly 200; a volute 210; a mounting edge 220;

an electronic control assembly 300; an electronic control box 310; a first case 311; a threading hole 3111; a line card 3112; a panel 312; a second container 313; a first card hole 3131; a first connection tab 3132; a shield cover 314; a first clasp 3141; a screw seat 3142; a cartridge holder 315; a second chucking hole 3151; a third connecting piece 3152; a third container 316; a second snap 3161; a second connecting piece 3162; heat dissipation fins 317; a connecting member 320; a fixed portion 321; a rotating portion 322; a first lug 323; a second lug 324; a main control board 330; a transformer 340; a reactor 350;

a support frame 400;

an electrically assisted thermal assembly 500;

a stent 600.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper and lower directions, is the orientation or positional relationship shown on 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 in a specific orientation, and be operated, and therefore should not be construed as limiting the present invention.

In the description of the present invention, a plurality means two or more. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the 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 air handling unit is generally installed in an attic or basement, and is generally assembled by assembling a plurality of module cases due to a complicated installation environment and a narrow installation space. The utility model relates to an air handling unit of embodiment, including heat exchange box (not shown in the figure) and fan case 1000. Heat exchange box and fan case 1000 structure are two independent module box, and heat exchange box and fan case 1000 can dismantle the connection, and heat exchange box and fan case 1000 can be dismantled the back and carry respectively, carry out fast assembly again during the installation to be convenient for installer installs in constrictive installation space, has reduced the degree of difficulty of installation, has improved the efficiency of installation. It can be understood that, since the installation space is narrow, when the air handling unit needs to be maintained or cleaned, the convenience of maintenance can be improved by adopting a structure in which the heat exchange box and the fan box 1000 are detachable.

Referring to fig. 1 and 2, a fan box 1000 according to an embodiment of the present invention includes a box body 100 and a box door (not shown). The box 100 forms a mounting cavity 110 therein, and one side wall surface of the peripheral wall of the box 100 is provided with an opening 120, and the opening 120 is communicated with the mounting cavity 110. The box door is detachably mounted at the opening 120 of the box body 100, and the box door is used for covering the opening 120, so that the opening 120 can be opened or closed, and when the fan box 1000 needs to be maintained or cleaned, the box door can be conveniently detached.

It can be appreciated that the fan box 1000 of an embodiment of the present invention further includes a fan assembly 200, an electronic control assembly 300, and a support frame 400. The supporting frame 400 is installed in the installation cavity 110, the supporting frame 400 is fixedly connected with the box body 100, the supporting frame 400 may be fixedly connected with the box body 100 through fasteners such as screws, rivets, and the like, or integrally manufactured with the box body 100, and the specific installation manner is not limited herein. The blower assembly 200 is supported by the support bracket 400 to be coupled to the casing 100. Moreover, the blower assembly 200 may be detachably connected to the supporting bracket 400, so that the blower assembly 200 may be detached to the outside of the box 100 when maintenance is required.

Referring to fig. 2 and 3, it can be appreciated that the electronic control assembly 300 includes an electronic control box 310 and a connector 320. It is understood that the connecting member 320 may be a hinge, or the like, which enables the two members to rotate relative to each other. The connecting member 320 is fixedly connected to a wall surface of the peripheral wall of the box 100 on a side close to the opening 120, and the connecting member 320 can be stably connected to the box 100 by screwing, riveting or welding. The electrical control box 310 is mounted on the connecting member 320, and the electrical control box 310 can rotate relative to the box 100 through the connecting member 320.

Referring to fig. 1 and 2, when the air handling unit is in a normal working state, the electrical control box 310 is accommodated between the blower assembly 200 and the box door, and at this time, the electrical control box 310 is in a first state, and the installation position of the electrical control box 310 can effectively utilize the space of the installation cavity 110, thereby improving the space utilization rate of the box body 100. Referring to fig. 3 and 4, when the blower assembly 200 needs to be maintained, the electronic control box 310 may be turned over to the outside of the box body 100 through the opening 120 of the box body 100, at this time, the electronic control box 310 is in the second state, the electronic control box 310 and the blower assembly 200 are staggered with each other, the electronic control box 310 does not block the blower assembly 200, the blower assembly 200 is completely exposed to after-sales personnel, the after-sales personnel can conveniently maintain the blower assembly 200, and the operation of rotating the electronic control box 310 is simple and convenient. Therefore, after the box door is detached, maintenance personnel can conveniently maintain or clean the fan assembly 200 and the electronic control assembly 300.

When the fan assembly 200 needs to be maintained, the maintenance personnel do not need to disassemble the electric control box 310, so that the difficulty of maintenance in a narrow installation environment can be reduced, and the maintenance efficiency and safety are improved; in addition, the steps of assembling and disassembling the electronic control box 310 are reduced, the failure rate of the electronic control assembly 300 can be effectively reduced, and the stability of the electronic control assembly 300 is improved.

Referring to fig. 3 and 4, it can be understood that the fan assembly 200 is slidably engaged with the support bracket 400, thereby achieving the detachable connection of the fan assembly 200 with the casing 100. The fan assembly 200 includes a volute 210, a wind wheel (not shown) disposed in the volute 210, and a motor (not shown) for driving the wind wheel to rotate. The one end that the spiral case 210 is located air outlet department outwards extends and is formed with installation limit 220, and the left and right sides of spiral case 210 can be located to installation limit 220, and two installation limits 220 are sliding fit respectively with the both sides of support frame 400, and the spiral case 210 can pass through opening 120 cartridge in support frame 400 and slidable mounting to installation cavity 110 promptly, can also be through the outside of support frame 400 roll-off opening 120 to box 100 to realize quick installation and the dismantlement of fan subassembly 200. When the maintenance personnel rotate the electric control box 310 to the second state, the fan assembly 200 and the electric control box 310 are staggered, the fan assembly 200 cannot be blocked by the electric control box 310, and therefore the fan assembly 200 can directly slide out of the box body 100 from the opening 120, the maintenance personnel can conveniently disassemble and assemble the fan assembly 200, and the maintenance efficiency of the fan assembly 200 is further improved.

Referring to fig. 3 and 5, it can be understood that the connection member 320 includes a fixed portion 321 and a rotating portion 322. The fixing portion 321 is fixedly connected to the peripheral wall of the case 100, and the fixing portion 321 may be fixed to the case 100 by screws, rivets, welding, or the like. The rotating portion 322 is rotatably connected to the fixing portion 321, the rotating portion 322 is fixedly connected to the electronic control box 310, and the rotating portion 322 can be fixed to the electronic control box 310 through screws, rivets or welding, so that the electronic control box 310 and the box 100 can rotate relative to each other and the connection is reliable. It can be understood that one side of the electrical control box 310 is connected to the rotating portion 322, and the other side of the electrical control box 310 is suspended, so that the electrical control box 310 can rotate into the box 100 and can rotate out of the box 100. It is understood that, as one embodiment, the connection member 320 may be installed at the left side of the box 100 in the left-right direction, so that the electrical control box 310 is turned to the left; as another embodiment, the connection member 320 may be installed at the right side of the casing 100 in the left-right direction, so that the electronic control box 310 is turned to the right.

Referring to fig. 5, it can be understood that the fixing portion 321 is provided with two first lugs 323, the two first lugs 323 are spaced apart in the up-down direction (i.e., the height direction of the case 100), and the two first lugs 323 are respectively located on the upper end surface and the lower end surface of the fixing portion 321. Correspondingly, the rotating portion 322 is provided with two second supporting lugs 324, the two second supporting lugs 324 are arranged at intervals along the vertical direction, and the two second supporting lugs 324 are respectively located on the upper end face and the lower end face of the rotating portion 322. It is understood that, as one embodiment, the first lug 323 and the second lug 324 at the upper end of the connection member 320 are connected by a pin or a rivet, and the first lug 323 and the second lug 324 at the lower end of the connection member 320 are connected by a pin or a rivet, so that the fixed part 321 and the rotating part 322 are stably rotated relative to each other. In another embodiment, a rotating shaft (not shown) is inserted between the two first lugs 323 and the two second lugs 324, and the fixed portion 321 and the rotating portion 322 rotate relative to each other through the rotating shaft. Therefore, the connecting member 320 having the above structure has higher connecting strength and stronger structural stability.

Referring to fig. 2, 6 and 7, it can be understood that the electronic control box 310 includes a first box member 311 and a panel 312. A space for accommodating the main control board 330 is formed between the first case 311 and the panel 312. The first box 311 is fixedly connected to the connector 320, an opening is formed in the front of the first box 311, the panel 312 is detachably mounted in the front of the first box 311, and the main control panel 330 is disposed towards the front of the box 100. When the box door is removed, the panel 312 is located at one side facing the opening 120, and after the panel 312 is removed, the main control board 330 faces the opening 120, i.e. faces maintenance personnel, so that the maintenance personnel can conveniently detect and maintain, the detection difficulty of the main control board 330 is reduced, and the maintenance efficiency of the electronic control assembly 300 is improved.

Referring to fig. 5 and 6, it can be understood that one side wall of the first box 311 facing the rotating portion 322 is provided with one or more threading holes 3111, and the threading holes 3111 are used for leading out the wiring harnesses in the electronic control box 310, so that the situation that the wiring harnesses are pinched off and damaged in the rotating process of the electronic control box 310 is effectively avoided, and the protection of the wiring harnesses is improved. Referring to fig. 7, a plurality of wire clips 3112 are arranged in the first box body 311, the plurality of wire clips 3112 are arranged along the extending direction of the threading holes 3111, the plurality of wire clips 3112 are divided into a plurality of groups, and each threading hole 3111 is correspondingly provided with one group of wire clips 3112, so that the wire harness of the main control panel 330 is more tidy, the maintenance and fault removal are facilitated, and the short circuit probability is reduced.

Referring to fig. 7 and 8, it can be understood that the electronic control box 310 further includes a second box body 313 and a protective cover 314. An accommodating space is formed between the second box body 313 and the protective cover 314, and the transformer 340 and the reactor 350 can be installed in the accommodating space. The second case 313 is fixedly connected to the upper end of the first case 311, and the second case 313 extends toward the rear of the case 100, so that a concave space formed at a tongue of the scroll 210 is effectively used, and the space inside the case 100 is maximally used. The protective cover 314 is detachably provided above the second case 313 to protect the transformer 340 and the reactor 350. The protective cover 314 can be made of plastic materials, so that the weight of the fan box 1000 is reduced, and the cost is reduced.

Referring to fig. 8 and 9, it can be understood that the protective cover 314 of the present embodiment is detachably coupled to the second case 313 in order to facilitate maintenance of the transformer 340 and the reactor 350. One side of the protecting cover 314 along the front-back direction is provided with a first buckle 3141, the second box body 313 is correspondingly provided with a first snap 3131, and the first buckle 3141 can rotate along the first snap 3131, so that the protecting cover 314 can be rotated and opened along the second box body 313, and the protecting cover is convenient to detach. In order to improve the stability of the connection between the protecting cover 314 and the second box 313, a screw seat 3142 is provided on the other side of the protecting cover 314 in the front-rear direction, a first connecting tab 3132 is correspondingly provided on the second box 313, and a screw hole (not shown) is correspondingly provided on the first connecting tab 3132 and the screw seat 3142, and the first connecting tab and the screw seat 3142 are fastened by screws. Moreover, after the screws are disassembled, the protective cover 314 is rotated and opened relative to the second box body 313, so that the operation is convenient, and maintenance personnel can conveniently overhaul the transformer 340 and the reactor 350.

It can be understood that, as another embodiment, one side of the protective cover 314 along the front-back direction is provided with a first snap 3131, the second box 313 is correspondingly provided with a first snap 3141, and the other side of the protective cover 314 and the second box 313 along the front-back direction is connected by a screw, so that the protective cover 314 and the second box 313 can be assembled and disassembled quickly, and the maintenance efficiency is improved.

Referring to fig. 10 and 11, it can be understood that the electronic control box 310 further includes a box holder 315 and a third box body 316. The cartridge holder 315 is fixedly coupled to an upper end of the first cartridge body 311. The third box 316 is detachably connected to the box holder 315, and a driving board (not shown) can be installed in the third box 316, so that the driving board in the third box 316 can be easily repaired. The third casing 316 and the second casing 313 are arranged side by side, and the third casing 316 extends to the rear of the casing 100, so that a concave space formed at a volute tongue of the volute 210 is effectively utilized, and the space inside the casing 100 is maximally utilized.

Referring to fig. 10 and 11, it can be understood that the third case 316 and the socket 315 of the present embodiment are detachably coupled to facilitate the maintenance of the driving board. One side of third box body 316 along the fore-and-aft direction is equipped with second buckle 3161, and cassette holder 315 corresponds and is equipped with second calorie of hole 3151, and second buckle 3161 can follow second calorie of hole 3151 rotatoryly to make third box body 316 rotate along cassette holder 315 and open convenient to detach. In order to improve the connection stability of the third box 316 and the box base 315, a second connecting piece 3162 is disposed on the other side of the third box 316 along the front-back direction, a third connecting piece 3152 is correspondingly disposed on the box base 315, and a screw hole (not shown) is correspondingly disposed on the third connecting piece 3152 and the second connecting piece 3162, and the third connecting piece 3152 and the second connecting piece 3162 are fastened and connected by a screw. Moreover, after the screws are disassembled, the third box body 316 can be rotated and opened relative to the box base 315, so that the operation is convenient, and a maintenance worker can maintain the driving plate conveniently.

It can be understood that, as another embodiment, one side of the third box body 316 in the front-back direction is provided with a second clamping hole 3151, the box base 315 is correspondingly provided with a second clamping buckle 3161, and the other side of the third box body 316 and the box base 315 in the front-back direction is connected through a screw, so that the third box body 316 and the box base 315 can be quickly disassembled and assembled, and the maintenance efficiency is improved.

Referring to fig. 1 and 11, it can be understood that the heat generation amount of the drive board in the third box 316 is relatively large, so in order to achieve effective heat dissipation of the drive board, the third box 316 may be made of a sheet metal material, a heat dissipation fin 317 is disposed on a side of the third box 316 facing the connector 320, the heat dissipation fin 317 is located between a side wall of the volute 210 on the side of the air inlet and a side wall of the box 100 on the side of the volute 210 facing the air inlet, the heat dissipation fin 317 extends in a front-back direction, that is, arranged along the airflow direction, the heat dissipation fins 317 are provided with a plurality of fins, the fins 317 are spaced apart from each other, an airflow channel for allowing an airflow to pass is formed between the heat dissipation fins 317, and when the air passes through the airflow channel, heat is taken away, so that heat dissipation is achieved. In addition, the air flow rate at the position where the heat sink 317 is disposed is high, which is the optimal position of the wind field, so that the heat sink 317 is disposed most favorably for heat dissipation, thereby improving the heat dissipation effect of the third case 316.

Referring to fig. 1, it will be appreciated that the air handling unit also includes an electrical auxiliary heating assembly 500, the electrical auxiliary heating assembly 500 being mounted within the mounting chamber 110. In order to facilitate the electric auxiliary heating assembly 500 to be overhauled, the electric auxiliary heating assembly 500 is detachably mounted on the support frame 400, the electric auxiliary heating assembly 500 can adopt a mode of being in sliding connection with the support frame 400, when the electric control box 310 is in the second state, namely, the electric control box 310 rotates to the outside of the box body 100, the electric auxiliary heating assembly 500 can be quickly dismounted and mounted through the opening 120, and the maintenance efficiency of the electric auxiliary heating assembly 500 is improved.

Referring to fig. 1 and 3, it will be appreciated that the air handling unit further includes a bracket 600, the bracket 600 is fixedly coupled to the upper end of the support frame 400, and the electric supplementary heating assembly 500 is mounted to the upper end of the bracket 600. The support 600 is formed with the space that is used for dodging automatically controlled box 310, thereby make the electricity assist the thermal subassembly 500 with automatically controlled box 310 along upper and lower direction interval setting, when making automatically controlled box 310 be in the first state, when automatically controlled box 310 is located the place ahead of fan subassembly 200 promptly, the electricity is assisted the thermal subassembly 500 and can be directly torn open from the opening 120 of box 100, and need not overturn automatically controlled box 310 or demolish automatically controlled subassembly 300, it is more convenient to operate, the maintainability of the electrical heat of assisting subassembly 500 has been improved, the maintenance efficiency of the electrical heat of assisting subassembly 500 has been promoted.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (12)

1. Air treatment unit, its characterized in that includes:

the box body is internally provided with an installation cavity, and the peripheral wall of the box body is provided with an opening communicated with the installation cavity;

the box door is detachably arranged on the box body and covers the opening;

the supporting frame is arranged in the mounting cavity;

the fan assembly is arranged on the supporting frame;

and the electric control assembly comprises an electric control box and a connecting piece, the connecting piece is connected with the peripheral wall of the box body, and the electric control box is rotatably connected with the box body through the connecting piece so as to enable the electric control box to have a first state of being accommodated between the fan assembly and the box door and a second state of being turned to the outside of the box body through the opening.

2. The air handling unit of claim 1, wherein: the fan assembly is in sliding fit with the supporting frame, and when the electric control box is in the second state, the fan assembly can slide out to the outside of the box body through the opening.

3. An air handling unit according to claim 1 or claim 2, characterised in that: the connecting piece includes fixed part and the rotation portion of rotation connection, the fixed part with box fixed connection, the rotation portion with automatically controlled box fixed connection.

4. An air handling unit according to claim 3, characterised in that: the fixed part is followed box direction of height's both ends are equipped with first journal stirrup respectively, the rotation portion is followed box direction of height's both ends are equipped with the second journal stirrup respectively, two the second journal stirrup with correspond through pivot, round pin axle or rivet connection between the first journal stirrup.

5. The air handling unit of claim 1, wherein: the electric control box comprises a first box body and a panel, the first box body is fixedly connected with the connecting piece, and the panel is detachably arranged on one side of the box door, and the first box body faces towards the box door.

6. The air handling unit of claim 5, wherein: automatically controlled box still includes second box body and protective cover, second box body fixed connection in the upper end of first box body, the protective cover can be dismantled and locate the top of second box body.

7. The air handling unit of claim 6, wherein: the protective cover is equipped with one of them in first buckle of matched with and the first card hole along one side of fore-and-aft direction, the second box body is equipped with another, the protective cover with the second box body passes through the screw connection along the opposite side of fore-and-aft direction.

8. The air handling unit of claim 6, wherein: the electric control box further comprises a box seat and a third box body, the box seat is fixedly connected to the upper end of the first box body and arranged side by side with the second box body, and the third box body is detachably connected to the box seat.

9. The air handling unit of claim 8, wherein: one side of the third box body in the front-back direction is provided with one of a second buckle and a second buckle hole which are matched with each other, the box seat is provided with the other side, and the other side of the third box body in the front-back direction is connected with the other side of the box seat through a screw.

10. The air handling unit of claim 8, wherein: and a radiating fin is arranged on one side of the third box body, which faces the connecting piece, and extends along the front-back direction.

11. The air handling unit of claim 1, wherein: the air handling unit further comprises an electric auxiliary heating assembly, and the electric auxiliary heating assembly is detachably mounted on the supporting frame.

12. An air handling unit according to claim 11, characterised in that: the air handling unit further comprises a support, the support is fixedly connected to the upper end of the support frame, a space for avoiding the electric control box is formed in the support, and the electric auxiliary heating assembly is installed on the support and arranged at intervals in the height direction of the box body along with the electric control assembly.

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