CN219454591U - Outdoor unit and heat pump dryer - Google Patents

Abstract

The utility model discloses an outdoor unit and a heat pump dryer, which can solve the problems that the outdoor unit of the dryer is poor in tightness and easy to fail when working in a high-humidity environment in the prior art. The outdoor unit comprises a shell, a middle partition plate, a heat exchanger and an electric appliance box, wherein the shell comprises a top cover, a first sealing piece is arranged on the bottom surface of the top cover, the top end of the middle partition plate is abutted against the first sealing piece, and a gap between the top end of the middle partition plate and the top cover is sealed; the electrical box is arranged at the upper part of the second space. Through set up first sealing member on the off-premises station top cap inner wall, the clearance between the top of baffle and the top cap in the seal, the air current when the baffle can be with the heat exchanger heat exchange intercepts and blocks, and then is favorable to preventing that moist air from getting into the second space by the upper portion in first space through the clearance between baffle top and the top cap, reduces the possibility that moist air got into inside the electrical apparatus box to reduce the machine fault rate, improve operational reliability.

Description

Outdoor unit and heat pump dryer

Technical Field

The utility model belongs to the technical field of heat pump drying, and particularly relates to a heat pump dryer outdoor unit and a heat pump dryer comprising the same.

Background

The heat pump dryer uses field Jing Duowei tobacco drying, crop drying, fruit vegetables drying etc. in the industry at present, and according to the condition of planting the plant, the stoving place is in mountain village isothermal humidity big different environment often, and the stoving room environment easily appears the high humidity environment after going through the rainy period.

The basic principle of the tobacco and crop drying process is that the moisture of crops in a drying room is evaporated under the condition of being heated, but the heating temperature, the heating time, the wet bulb temperature and the like must strictly follow the drying process, the evaporated moisture in the process is discharged through a moisture discharge port, and the temperature of the moisture discharge port is usually higher at the moment; in order to improve the heat utilization efficiency, most of the outdoor units of the dryer are arranged at the positions of the dehumidifying ports so as to recycle heat, and at the moment, the humid air is in a high-temperature and high-humidity state and has high density.

According to the analysis, the high humidity condition caused by the use scene of the dryer is one of important problems which need to be solved for the safety influence of an internal electric control system, and the high temperature and high humidity air exhausted in the process of drying most crops contains acidic media, so that the corrosion of an electric control plate can be further aggravated. In addition, when outdoor ambient temperature is lower, relative humidity is great, and when the long-time heating operation of drying-machine off-premises station, off-premises station (evaporation side) electrical apparatus box is in low temperature high humidity environment for a long time, and sealed not tight moist air gets into electrical apparatus box inside, easily causes the inside condensation of electrical apparatus box, and the condensation can cause the device short circuit to damage, takes place quality problem, causes the drying-machine to break down.

Disclosure of Invention

The utility model provides an outdoor unit and a heat pump dryer, which can solve the problems that the outdoor unit of the dryer is poor in tightness and easy to fail when working in a high-humidity environment in the prior art.

In order to solve the above-mentioned technical problems, in some embodiments of the present application, an outdoor unit is provided, including:

the shell comprises a top cover, a bottom plate and a circumferential side plate, wherein an air inlet and an air outlet are formed in the circumferential side plate, and a first sealing piece is arranged on the bottom surface of the top cover;

a middle partition plate which is arranged in the shell and divides the inner space of the shell into a first space and a second space which are adjacent, wherein the top end of the middle partition plate is abutted against the first sealing element so that the first sealing element seals a gap between the top end of the middle partition plate and the top cover;

the heat exchanger is arranged in the first space, and outdoor air flows through the air inlet to enter the first space and is discharged from the air outlet after heat exchange of the heat exchanger;

and an electrical box provided at an upper portion of the second space.

Through set up first sealing member on the off-premises station top cap inner wall, the top of well baffle offsets with first sealing member and leans on, so that the clearance between the top of baffle and the top cap in the first sealing member can seal, the air current when the heat exchanger heat exchange can be blocked to the baffle of median, and then be favorable to preventing in the air current that humid air gets into the second space by the upper portion in first space through the clearance between baffle top and the top cap, improve the leakproofness in the second space that electrical apparatus box was located, and then be favorable to reducing the possibility that humid air got into electrical apparatus box inside, reduce the inside risk that produces the condensation of electrical apparatus box, inside automatically controlled device is corroded, thereby reduce the machine fault rate, improve operational reliability.

In some embodiments of the present application, the first sealing member is in a sheet shape and is adhered to the inner wall of the top cover, one end of the first sealing member extends into the upper space of the first space, and the other end extends into the upper space of the second space.

In some embodiments of the present application, the first seal is a thermal pad having a sealing and insulating effect.

In some embodiments of the present application, the electrical box comprises:

the bottom plate of the electric appliance box body is provided with a through wiring hole;

the second sealing piece is in a cylindrical shape with two through ends, the second sealing piece is inserted into the wiring hole, the outer peripheral surface of the second sealing piece is in sealing fit with the wiring hole, the second sealing piece extends downwards out of the electric appliance box body, and a wiring channel of an electric appliance box wire harness is formed in a cylindrical space of the second sealing piece;

and a fastener provided on the protruding portion of the second sealing member, the fastener hooping the second sealing member and the electrical box harness together.

In some embodiments of the present application, the electrical box body includes an electrical box cover body and an electrical box frame body, the electrical box cover body is detachably mounted on the electrical box frame body, and a third sealing member is disposed between the electrical box cover body and the electrical box frame body.

In some embodiments of the present application, a dehumidification module is disposed in the electrical box.

In some embodiments of the present application, the dehumidifying module is disposed on an inner wall of the cover of the electrical appliance box, and an accommodating portion with an upward opening is disposed on the inner wall of the cover of the electrical appliance box, and the dehumidifying module is disposed in the accommodating portion and can be taken and placed through the opening of the accommodating portion.

In some embodiments of the present application, the dehumidification module includes an outer housing with a plurality of through holes formed therein, and a molecular sieve module and an activated carbon module housed within the outer housing.

In some embodiments of the present application, an electrical device mounting board is mounted in the electrical box frame, the electrical device mounting board includes a main body mounting portion and a connecting portion, the connecting portion is located at the periphery of the main body mounting portion and is in spot welding connection with the back plate of the electrical box frame, and the main body mounting portion protrudes towards the side where the electrical box cover is located relative to the connecting portion, so that an avoidance space for avoiding electrical device mounting is formed between the main body mounting portion and the back plate of the electrical box frame.

In some embodiments of the present application, a heat pump dryer is further provided, including an outdoor unit, where the outdoor unit is the above-mentioned outdoor unit.

Drawings

Fig. 1 shows a front view of an outdoor unit of a side outlet heat pump dryer according to an embodiment of the present application;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a right side view of FIG. 1;

fig. 4 is a front view of the outdoor unit of the side outlet heat pump dryer according to the first embodiment of the present application, with a front panel omitted;

fig. 5 is a schematic diagram showing a bottom view assembly structure of a heat exchanger, a middle partition plate and a top cover of an outdoor unit of a middle-side air-out heat pump dryer according to an embodiment of the present application;

fig. 6 is an enlarged view of a portion a of fig. 5;

fig. 7 is a partial schematic view showing a bottom view assembly structure of a middle partition plate and a top cover of an outdoor unit of a middle-side air-out heat pump dryer according to an embodiment of the present application;

fig. 8 shows a front view of an electrical box of an outdoor unit of a side outlet heat pump dryer according to an embodiment of the present application;

FIG. 9 is an exploded view of FIG. 8;

fig. 10 is a perspective view showing a second sealing member of an electrical box of an outdoor unit of a side outlet heat pump dryer according to the first embodiment of the present application;

FIG. 11 is a front view of an electrical box cover of an outdoor unit of a side outlet heat pump dryer according to an embodiment of the present application;

FIG. 12 is an exploded view of FIG. 11;

fig. 13 shows a front view of an outdoor unit of an top-outlet heat pump dryer in a second embodiment of the present application;

FIG. 14 is a left side view of FIG. 13;

FIG. 15 is a right side view of FIG. 13;

fig. 16 is a perspective view of an outdoor unit of an top-outlet heat pump dryer according to a second embodiment of the present disclosure, with a front panel and a top cover omitted;

FIG. 17 is a front view of FIG. 16;

fig. 18 shows an electrical box front view of an outdoor unit of an top-outlet heat pump dryer in a second embodiment of the present application;

FIG. 19 is an exploded view of FIG. 18;

fig. 20 is a perspective view showing a second sealing member of an electrical box of an outdoor unit of an top-outlet heat pump dryer in a second embodiment of the present application;

fig. 21 is an exploded view of an electrical box of an outdoor unit of an top-outlet heat pump dryer according to a second embodiment of the present application;

fig. 22 is a schematic diagram showing an assembly structure of an electrical box body and an electrical device mounting plate of an outdoor unit of an top-outlet heat pump dryer in a second embodiment of the present application;

FIG. 23 is a B-B cross-sectional view of FIG. 22;

fig. 24 shows a front view of an electrical box cover of an outdoor unit of an top-outlet heat pump dryer in a second embodiment of the present application;

fig. 25 is an exploded view of fig. 24.

Reference numerals in fig. 1 to 12:

100-a shell; 110-top cover; 120-a bottom plate; 130-left side plate; 140-right side plate; 150-a back plate; 160-a front panel; 170-an air inlet; 180-an air outlet; 190-a first space; 1100-a second space; 200-middle separator; 300-heat exchanger; 400-electrical box; 410-an electrical box; 411-electric appliance box bottom plate; 412-routing holes; 413-an electrical box cover; 414-electrical box frame; 415-a third seal; 416-an electric appliance box cover fixing plate; 417-an electrical device mounting plate; 417A-a body mount; 417B-a connection; 420-a second seal; 421-ring connection; 422-annular clamping groove; 423-shrapnel; 424-slit; 430-a dehumidification module; 440-housing part; 500-compressors; 600-an outdoor fan; 700-first seal.

Reference numerals in fig. 13 to 25:

100-a shell; 110-top cover; 120-a bottom plate; 130-left side plate; 140-right side plate; 150-a back plate; 160-a front panel; 170-an air inlet; 180-an air outlet; 200-an outdoor fan; 300-heat exchanger; 400-electrical box; 410-a box; 411-electric appliance box bottom plate; 412-routing holes; 413-inner box; 414-an outer box; 415-a heat insulation layer; 416-avoidance space; 417-an electrical device mounting plate; 417A-a body mount; 417B-a connection; 420-cover; 421-circumferential flanging; 430-a dehumidification module; 440-housing part; 450—a first seal; 451-annular connection; 452-annular clamping groove; 453-shrapnel; 454-slit; 460-a second seal; 500-compressor.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

The heat pump dryer is a heat lifting device, a high-temperature heat pump dryer unit utilizes the inverse Carnot principle to absorb heat from the surrounding environment and transfer the heat to a material to be dried, and the heat pump dryer is mainly applied to the drying and dehydration processes of foods, medicinal materials, wood, agricultural and sideline products, industrial products and the like.

The heat pump dryer unit mainly comprises a fin type evaporator (outer machine), a compressor, a fin type condenser (inner machine) and an expansion valve, and the heat pump dryer unit transfers the heat in the external low-temperature environment to the drying room by continuously completing the thermodynamic cycle process of evaporation (absorbing heat in the outdoor environment), compression, condensation (releasing heat in the indoor drying room), throttling and re-evaporation through air, and the refrigerant circularly flows in the system under the action of the compressor. When the heat pump drying unit works, like a common air conditioner and a heat pump unit, energy in a low-temperature environment medium is absorbed in the evaporator, and heat is released when the heat pump drying unit passes through the working medium circulation system in the condenser.

The heat pump drying unit comprises an outdoor unit and an indoor unit, the outdoor unit is a part comprising a compressor of a working medium circulating system and an outdoor heat exchanger, the part is positioned outside a drying room, the indoor unit comprises an indoor heat exchanger of the working medium circulating system, the part is positioned inside the drying room, and an expansion valve can be arranged in the indoor unit or the outdoor unit.

Example 1

Referring to fig. 1 to 7, an outdoor unit according to an embodiment of the present disclosure, specifically, a side air-out heat pump dryer outdoor unit, also referred to as a cross air-out heat pump dryer outdoor unit, includes a casing 100, a middle partition 200, a heat exchanger 300, and an electrical box 400, and of course includes other necessary structural components that constitute the side air-out heat pump dryer outdoor unit, such as a compressor 500, an outdoor fan 600, and the like.

The casing 100 is in a cuboid shape, the vertical dimension of the casing is greater than the horizontal dimension of the casing, the horizontal dimension of the casing is greater than the longitudinal dimension of the casing, the casing comprises a top cover 110, a bottom plate 120 and a circumferential side plate, the circumferential side plate comprises a left side plate 130, a right side plate 140, a rear back plate 150 and a front panel 160, an air inlet 170 is specifically arranged on the left side plate 130 and the rear back plate 150, an air outlet 180 is specifically arranged on the front panel 160, and a first sealing member 700 is arranged on the inner wall (namely, the wall surface opposite to the bottom plate 120) of the top cover 110.

The middle partition 200 is provided in the cabinet 100, and divides the interior space of the cabinet 100 into a first space 190 and a second space 1100 adjacent to each other, in this embodiment, left and right, and the top end of the middle partition 200 abuts against the first seal 700 so that the first seal 700 seals a gap between the top end of the middle partition 200 and the top cover 110.

The heat exchanger 300 is arranged in the first space 190, in particular to an L-shaped fin type heat exchanger, the left side of the heat exchanger 300 is attached to the left side plate 130 of the casing 100 to correspond to the air inlet 170 on the left side plate 130, the right side of the heat exchanger 300 is attached to the back plate 150 of the casing 100 to correspond to the air inlet 170 on the back plate 150, outdoor air flow enters the first space 190 through the air inlet 170 and exchanges heat through the heat exchanger 300, and the air flow after heat exchange is discharged through the air outlet 180 on the front panel 160;

the outdoor fan 600 is disposed in the first space 190, and is configured to drive an outdoor air flow to enter the first space 190 through the air inlet 170, so as to exchange heat with the heat exchanger 300, and drive the air flow after heat exchange to be discharged from the air outlet 180 on the front panel 160, because in the embodiment, the vertical dimension of the outdoor unit, that is, the height dimension, is large, and accordingly, the vertical dimension of the heat exchanger 300 is large, in the embodiment, two outdoor fans 600 that are disposed up and down are adopted to work together, so as to improve the heat exchange efficiency, and further improve the drying efficiency.

The compressor 500 and its related piping are disposed in the second space 1100, and in particular, in the lower portion of the second space 1100, the low-temperature low-pressure refrigerant enters the refrigerant gas compressed into a high-temperature high-pressure state by the compressor 500 and discharges the compressed refrigerant gas, the discharged refrigerant gas flows into a condenser (for the heat pump dryer, an indoor heat exchanger), the condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment, i.e., the drying room through the condensation process, to dry and dry the material to be dried.

The electric box 400 is provided at an upper portion of the second space 1100, i.e., near the top cover 110, and the electric box 400 is used to house electric devices of the outdoor unit, such as an electric control board.

In this embodiment, by disposing the first sealing member 700 on the inner wall of the top cover 110 of the outdoor unit, the top end of the middle partition board 200 abuts against the first sealing member 700, specifically, the first sealing member 700 is sandwiched between the top end of the middle partition board 200 and the inner wall of the top cover 110 in an interference manner, so that the first sealing member 700 can seal the gap between the top end of the middle partition board 200 and the top cover 110, thereby enabling the middle partition board 200 to intercept and block the air flow generated during the heat exchange of the heat exchanger 300, further facilitating preventing the humid air in the air flow from entering the second space 1100 from the upper portion of the first space 190 through the gap between the top end of the middle partition board 200 and the top cover 110, improving the tightness of the second space 1100 in which the electrical box 400 is located, further facilitating reducing the possibility that the humid air enters the interior of the electrical box 400, reducing the risk of condensation and corrosion of internal electrical devices inside the electrical box 400, thereby reducing the failure rate of the unit and improving the reliability of operation.

In this embodiment, the first sealing member 700 is in a sheet shape, and is adhered and fixed on the inner wall of the top cover 110 by gluing, one end of the first sealing member 700 extends into the upper space of the first space 190, and the other end extends into the upper space of the second space 1100, as shown in fig. 5 to 7. The first sealing member 700 covers a portion of the inner wall of the top cover 110 in the lateral direction (i.e., the length direction of the top cover 110 of the present embodiment) and completely covers the inner wall of the top cover 110 in the longitudinal direction (i.e., the width direction of the top cover 110 of the present embodiment) so as to be able to completely fill the fitting gap between the top end of the middle spacer 200 and the top cover 110.

The material of the first sealing member 700 may specifically be one of PE (polyethylene), XPE (chemically cross-linked polyethylene foam), EPDM (ethylene propylene diene monomer), NBR (nitrile rubber), and the like, and is a heat insulation pad having sealing and heat insulation effects.

Referring to fig. 8 to 12, and simultaneously referring to fig. 4, the electrical box 400 includes an electrical box body 410, a second sealing member 420 and a fastening member, the overall profile of the electrical box body 410 is in a rectangular parallelepiped shape, the electrical box body 410 is vertically installed in the upper portion of the second space 1100 of the outdoor unit casing 100, the left and right sides of the electrical box body 410 are respectively fixedly connected to the middle partition 200 and the right side plate 140 of the casing 100, and a routing hole 412 penetrating through the bottom plate is formed in the bottom plate of the electrical box body 410, so that wires (abbreviated as an electrical box harness) of electrical devices inside the electrical box 400 are routed.

The second sealing member 420 is in a cylindrical shape with two through ends, the second sealing member 420 is inserted into the wiring hole 412, the outer peripheral surface of the second sealing member 420 is in sealing fit with the wiring hole 412, meanwhile, the second sealing member 420 extends downwards out of the electrical box body 410, and the cylindrical space of the second sealing member 420 forms a wiring channel of the electrical box wire harness, namely, the electrical box wire harness passes through the cylindrical space of the second sealing member 420 and out of the electrical box 400.

Specifically, the second sealing member 420 is made of an elastic material, as shown in fig. 10, the top end of the second sealing member is provided with an annular connecting portion 421 protruding outwards in the radial direction, an annular clamping groove 422 is formed on the outer circumferential surface of the annular connecting portion 421, and the inner wall of the wire hole 412 is clamped in the annular clamping groove 422, so that sealing fit between the second sealing member 420 and the wire hole 412 is achieved. A plurality of elastic pieces 423 are circumferentially distributed on the top end inner wall of the second sealing piece 420, gaps 424 are formed between the adjacent elastic pieces 423, so that an electrical box wire harness passes through, 4 elastic pieces 423 are taken as an example shown in fig. 10, cross-shaped gaps 424 are formed between the 4 elastic pieces 423, and on the basis that the electrical box wire harness passes through smoothly, the sealing performance of the second sealing piece 420 is further improved.

Fasteners are provided on the protruding portions of the second seal 420, the fasteners hooping the second seal 420 with the electrical box harness. Specifically, the fastener can be a binding belt, a rope or a clip, and the like, and after the electrical box wire harness is routed in place, the fastener acts on the extending part of the second sealing member 420, so that the second sealing member 420 and the electrical box wire harness are fastened together in a binding, clamping and clamping mode, wet air is prevented from entering the electrical box 400 through the cylinder space of the second sealing member 420, condensation or corrosion of internal electrical devices in the electrical box 400 is avoided, and safe use of the electrical box 400 is ensured.

As shown in fig. 9, the electrical box body 410 includes an electrical box cover 413 and an electrical box frame 414, the electrical box cover 413 is detachably mounted on the electrical box frame 414, and a third seal 415 is provided between the electrical box cover 413 and the electrical box frame 414. Specifically, the electrical box cover 413 has a flange turned towards the side where the electrical box frame 414 is located, the third sealing member 415 is attached to the inner wall of the flange, and after the electrical box cover 413 is buckled on the electrical box frame 414, the third sealing member 415 is compressed to seal an assembly gap between the electrical box cover 413 and the electrical box frame 414, so that the sealing effect of the electrical box 400 is further improved. The material of the third sealing member 415 may be specifically one of PE (polyethylene), XPE (chemically cross-linked polyethylene foam), EPDM (ethylene propylene diene monomer), NBR (nitrile butadiene rubber), and the like, and is fixed on the inner wall of the flange of the electrical box cover 413 by an adhesive manner.

For the installation of the electrical box cover 413 on the electrical box frame 414, a mode of screw fixation and buckle fixation is specifically adopted, as shown in fig. 9, an electrical box cover fixing plate 416 extending vertically is fixedly arranged on the inner wall of a vertical side plate of the electrical box frame 414, a plurality of screw holes are arranged on the electrical box cover fixing plate 416 at intervals up and down, screw holes are also arranged on the corresponding side of the electrical box cover 413, the side of the electrical box cover 413 is fixed with the electrical box cover fixing plate 416 through screws, and the opposite side is fixed through the cooperation of a buckle structure.

In this embodiment, a dehumidifying module 430 is further disposed in the electrical box 410, and if humid air enters the electrical box 410, the humid air can be removed by the dehumidifying module 430.

Specifically, as shown in fig. 11 and 12, the dehumidification module 430 is disposed on an inner wall of the electrical box cover 413, and a storage portion 440 with an upward opening is disposed on the inner wall of the electrical box cover 413, and the dehumidification module 430 is disposed in the storage portion 440 and can be taken out and placed into the dehumidification module 430 through the opening of the storage portion 440. The accommodating portion 440 is specifically formed by welding a metal plate on the inner wall of the electrical box cover 413, the accommodating portion 440 protrudes toward the inner space of the electrical box 400, such that a space is formed between the accommodating portion and the inner wall of the electrical box cover 413 by flashing, and the metal plate is provided with a hollow structure to reduce the obstruction to air circulation as much as possible. The dehumidifying module 430 is directly placed in the accommodating portion 440 through the opening of the accommodating portion 440, so as to facilitate taking and placing.

The dehumidifying module 430 includes an outer case, and a molecular sieve module and an activated carbon module accommodated in the outer case, wherein a plurality of through holes are formed in the outer case to ensure air circulation. The molecular sieve module and the activated carbon module have the functions of dehumidifying and adsorbing acidic media in humid air, and can be arranged in a form of molecular sieve package or activated carbon package. The shell body is an injection molding piece, and a plurality of through holes of the shell body are of a micropore ventilation structure, so that ventilation is guaranteed.

For the installation of the electric device in the electric box body 410, as shown in fig. 9, an electric device installation plate 417 is installed in the electric box frame 414, the electric device installation plate 417 includes a main body installation portion 417A and a connection portion 417B, the connection portion 417B is located at the periphery of the main body installation portion 417A and is in a flanging shape, and is in spot welding connection with the back plate of the electric box frame 414, the main body installation portion 417A protrudes towards the side of the electric box cover 413 opposite to the connection portion 417B, so that an avoidance space for avoiding the installation of the electric device is formed between the main body installation portion 417A and the back plate of the electric box frame 414, that is, a clearance is formed between the main body installation portion 417A and the bottom plate of the electric box 410, instead of the main body installation portion 417A being tightly attached to the back plate of the electric box frame 414, so that avoidance can be performed when the electric device is installed, for example, screws are guaranteed not to penetrate the back plate of the electric box frame 414 when the electric device needs to be screwed, and sealing of the electric box 400 is guaranteed.

Example two

Referring to fig. 13 to 25, the outdoor unit in the second embodiment of the present application is specifically an outdoor unit of an top-outlet heat pump dryer, which includes a casing 100, a heat exchanger 300, and an electrical box 410, and of course includes other necessary structural components, such as a compressor 500, an outdoor fan 200, and the like, that constitute the outdoor unit of the top-outlet heat pump dryer.

The casing 100 is in a cuboid shape, the vertical dimension of the casing is greater than the horizontal dimension of the casing, the horizontal dimension of the casing is greater than the longitudinal dimension of the casing, the casing comprises a top cover 110, a bottom plate 120 and a circumferential side plate, the circumferential side plate comprises a left side plate 130, a right side plate 140, a rear back plate 150 and a front panel 160, an air inlet 170 is specifically arranged on the left side plate 130, the right side plate 140 and the rear back plate 150, and an air outlet 180 is specifically arranged on the top cover 110.

The heat exchanger 300 is disposed in the inner space of the casing 100, specifically, a U-shaped fin heat exchanger, the left side of the heat exchanger 300 is attached to the left side plate 130 of the casing 100 to correspond to the air inlet 170 on the left side plate 130, the right side of the heat exchanger 300 is attached to the right side plate 140 of the casing 100 to correspond to the air inlet 170 on the right side plate 140, the rear side of the heat exchanger 300 is attached to the rear back plate 150 of the casing 100 to correspond to the air inlet 170 on the rear back plate 150, outdoor air flows into the casing 100 through the air inlet 170 and exchanges heat through the heat exchanger 300, the air flow after heat exchange is discharged through the air outlet 180 on the top cover 110, and the top cover 110 is provided with an air outlet grille.

The outdoor fan 200 is disposed in the internal space of the casing 100, specifically disposed at the air outlet 180, and has an axial direction vertical, and the outdoor fan 200 is used for driving outdoor air flow into the casing 100 through the air inlet 170 to exchange heat with the heat exchanger 300, and driving the air flow after heat exchange to be discharged from the air outlet 180 on the top cover 110.

The compressor 500 and its related piping are disposed in the inner space of the cabinet 100, and are specifically mounted on the bottom plate 120 of the cabinet 100, the low-temperature low-pressure refrigerant enters the refrigerant gas compressed into a high-temperature high-pressure state by the compressor 500 and is discharged, the discharged refrigerant gas flows into a condenser (an indoor heat exchanger for a heat pump dryer), the condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment, i.e., a drying room through the condensation process, to dry and dry the material to be dried.

The electrical box 410 is disposed in the inner space of the cabinet 100 and is adjacent to the top cover 110, and the electrical box 410 is used for accommodating electrical devices of the outdoor unit, such as an electric control board. The electrical box 410 comprises a box body 410 and a cover body 420, the cover body 420 is in sealing fit with the box body 410, and the box body 410 comprises an inner box body 413, an outer box body 414 and a heat insulation layer 415 which is clamped between the inner box body 413 and the box body 410.

Through the box body 410 and the lid 420 sealing fit of electrical apparatus box 410, the box body 410 includes interior box body 413, outer box body 414 and presss from both sides the insulating layer 415 of establishing between interior box body 413 and box body 410 simultaneously, can improve the sealed effect and the insulating effect of electrical apparatus box 410, and outside air is isolated effectively, reduces and even avoids the inside condensation that forms of wet cooling air entering electrical apparatus box 410, simultaneously can also prevent effectively that wet cooling air from corroding inside electrical apparatus to reduce the unit fault rate, improve operational reliability.

Specifically, the heat insulation layer 415 is made of polyurethane, and plays a role in heat insulation. The heat insulating layer 415 is formed in a sheet shape, and as shown in fig. 21, a plurality of heat insulating layers are bonded and fixed to the inner walls of the outer case 414 or the inner case 413 by gluing, and gaps between the outer case 414 and the inner case 413 are filled.

As shown in fig. 16 and fig. 18 to fig. 20, the overall outline of the electrical box 410 is rectangular, and is vertically installed in the outdoor unit casing 100, and a wiring hole 412 penetrating through the bottom plate is formed on the bottom plate 411 of the electrical box body, so that wires (abbreviated as electrical box wire bundles) of electrical devices inside the electrical box 410 are wired.

The first sealing member 450 is installed in the wiring hole 412, the first sealing member 450 is in a cylindrical shape with two through ends, the first sealing member 450 is inserted into the wiring hole 412, the outer peripheral surface of the first sealing member is in sealing fit with the wiring hole 412, meanwhile, the first sealing member 450 downwards extends out of the box body 410, a wiring channel of an electrical box wire harness is formed by a cylindrical space of the first sealing member 450, namely the electrical box wire harness passes through the outer part of the electrical box 410 through the cylindrical space of the first sealing member 450.

The protruding portion of the first sealing member 450 is provided with a fastener (not shown) for coupling the first sealing member 450 to the electrical box harness.

Specifically, the first sealing member 450 is made of elastic material, the fastening member can be a binding belt, a rope or a clip, etc., and after the electrical box wire harness is routed in place, the fastening member acts on the extending part of the first sealing member 450, so that the first sealing member 450 and the electrical box wire harness are fastened together in a binding, clamping and clamping manner, the moist air is prevented from entering the electrical box 410 through the cylinder space of the first sealing member 450, the formation of condensation or the corrosion of internal electrical devices in the electrical box 410 is avoided, and the safe use of the electrical box 410 is ensured.

As shown in fig. 20, the top end of the first sealing member 450 has an annular connecting portion 451 protruding radially outward, an annular clamping groove 452 is formed on the outer peripheral surface of the annular connecting portion 451, and the inner wall of the wiring hole 412 is clamped in the annular clamping groove 452, so that sealing engagement between the first sealing member 450 and the wiring hole 412 is realized.

The annular connecting portion 451 has a plurality of elastic pieces 453 formed on an inner circumferential surface thereof, the plurality of elastic pieces 453 are circumferentially arranged, and gaps 454 are formed between adjacent elastic pieces 453 to ensure the penetration of the first sealing member 450, so that the electrical box wire harness passes through, and when the electrical box wire harness passes through the gaps 454 between the elastic pieces 453, the elastic pieces 453 are driven to elastically deform, and 4 elastic pieces 453 are used as an example, and a cross-shaped gap is formed between the 4 elastic pieces 453, so that the tightness of the first sealing member 450 is further improved on the basis that the electrical box wire harness passes smoothly.

As shown in fig. 19 and 25, the cover 420 is detachably mounted on the case 410, and a second sealing member 460 is provided between the cover 420 and the case 410 to achieve sealing engagement of the cover 420 and the case 410.

Specifically, the cover 420 has a circumferential flange 421 turned towards the side of the box 410, the second sealing member 460 is annular and is attached to the inner wall of the circumferential flange 421, the cover 420 is buckled on the box 410, and the second sealing member 460 is in a compressed state to fully seal the assembly gap between the cover 420 and the box 410. After the cover 420 is fastened to the case 410, the cover and the case may be further firmly connected by screwing on the side or the front. The material of the second sealing member 460 may specifically be one of PE (polyethylene), XPE (chemically crosslinked polyethylene foam), EPDM (ethylene propylene diene monomer), NBR (nitrile butadiene rubber), and the like, and is fixed on the inner wall of the circumferential flange 421 of the cover 420 by an adhesive manner.

In this embodiment, a dehumidifying module 430 is further disposed in the electrical box 410, and if humid air enters the electrical box 410, the humid air can be further removed by the dehumidifying module 430.

Specifically, as shown in fig. 24 and 25, the dehumidifying module 430 is disposed on an inner wall of the cover 420 of the electrical box 410, an upwardly open accommodating portion 440 is disposed on the inner wall of the cover 420, and the dehumidifying module 430 is disposed in the accommodating portion 440 and can be taken out and put into the dehumidifying module 430 through the opening of the accommodating portion 440. The accommodating portion 440 is specifically formed by welding a metal plate on the inner wall of the cover 420, the accommodating portion 440 protrudes toward the inner space of the electrical box 410, i.e. toward the side of the box 410, so that a space is formed between the accommodating portion and the inner wall of the cover 420 by flashing, and a hollow structure is formed on the metal plate to reduce the obstruction to air circulation as much as possible. The dehumidifying module 430 is directly placed in the accommodating portion 440 through the opening of the accommodating portion 440, so as to facilitate taking, placing and replacing.

The dehumidifying module 430 includes an outer case, and a molecular sieve module and an activated carbon module accommodated in the outer case, wherein a plurality of through holes are formed in the outer case to ensure air circulation. The molecular sieve module and the activated carbon module have the functions of dehumidifying and adsorbing acidic media in humid air, and can be arranged in a form of molecular sieve package or activated carbon package. The shell body is an injection molding piece, and a plurality of through holes of the shell body are of a micropore ventilation structure, so that ventilation is guaranteed.

For the installation of the electrical device in the electrical box 410, as shown in fig. 19, 22 and 23, an electrical device installation plate 417 is installed in the box 410 (specifically, the inner box 413) of the electrical box 410, the electrical device installation plate 417 includes a main body installation portion 417A and a connection portion 417B, the connection portion 417B is located at the periphery of the main body installation portion 417A and is in spot welding connection with the back plate of the box 410, and the main body installation portion 417A protrudes toward the side of the cover 420 opposite to the connection portion 417B, so that an avoidance space 416 for avoiding the installation of the electrical device is formed between the main body installation portion 417A and the back plate of the box 410, that is, a clearance is formed between the main body installation portion 417A and the back plate of the box 410, instead of the main body installation portion 417A being in close contact with the back plate of the box 410, so that avoidance can be performed when the electrical device is installed, for example, when the electrical device needs to be screwed, the screw is guaranteed not to penetrate the back plate of the box 410, which is beneficial to guarantee the sealing of the electrical box 410.

Example III

The present embodiment provides a heat pump dryer, including an outdoor unit, where the structure of the outdoor unit is referred to in the first embodiment and the second embodiment of the outdoor unit, and is not described herein.

In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (10)

1. An outdoor unit, comprising:

the shell comprises a top cover, a bottom plate and a circumferential side plate, wherein an air inlet and an air outlet are formed in the circumferential side plate, and a first sealing piece is arranged on the inner wall of the top cover;

a middle partition plate which is arranged in the shell and divides the inner space of the shell into a first space and a second space which are adjacent, wherein the top end of the middle partition plate is abutted against the first sealing element so that the first sealing element seals a gap between the top end of the middle partition plate and the top cover;

the heat exchanger is arranged in the first space, and outdoor air flows through the air inlet to enter the first space and is discharged from the air outlet after heat exchange of the heat exchanger;

and an electrical box provided at an upper portion of the second space.

2. The outdoor unit of claim 1, wherein,

the first sealing piece is in a sheet shape and is stuck on the inner wall of the top cover, one end of the first sealing piece stretches into the upper space of the first space, and the other end of the first sealing piece stretches into the upper space of the second space.

3. The outdoor unit of claim 1, wherein,

the first sealing element is a heat preservation pad with sealing and heat insulation functions.

4. The outdoor unit of any one of claims 1 to 3, wherein,

the electrical box comprises:

the bottom plate of the electric appliance box body is provided with a through wiring hole;

the second sealing piece is in a cylindrical shape with two through ends, the second sealing piece is inserted into the wiring hole, the outer peripheral surface of the second sealing piece is in sealing fit with the wiring hole, the second sealing piece extends downwards out of the electric appliance box body, and a wiring channel of an electric appliance box wire harness is formed in a cylindrical space of the second sealing piece;

and a fastener provided on the protruding portion of the second sealing member, the fastener hooping the second sealing member and the electrical box harness together.

5. The outdoor unit of claim 4, wherein,

the electric appliance box body comprises an electric appliance box cover body and an electric appliance box frame body, the electric appliance box cover body is detachably arranged on the electric appliance box frame body, and a third sealing piece is arranged between the electric appliance box cover body and the electric appliance box frame body.

6. The outdoor unit of claim 5, wherein,

and a dehumidification module is arranged in the electrical box body.

7. The outdoor unit of claim 6, wherein,

the dehumidification module is arranged on the inner wall of the cover body of the electric appliance box, an accommodating part with an upward opening is arranged on the inner wall of the cover body of the electric appliance box, and the dehumidification module is arranged in the accommodating part and can be taken and placed through the opening of the accommodating part.

8. The outdoor unit of claim 7, wherein,

the dehumidifying module comprises an outer shell, a molecular sieve module and an activated carbon module, wherein the molecular sieve module and the activated carbon module are accommodated in the outer shell, and a plurality of through holes are formed in the outer shell.

9. The outdoor unit of claim 5, wherein,

the electric appliance box comprises an electric appliance box body, and is characterized in that an electric appliance device mounting plate is mounted in the electric appliance box body, the electric appliance device mounting plate comprises a main body mounting part and a connecting part, the connecting part is located at the periphery of the main body mounting part and is in spot welding connection with a back plate of the electric appliance box body, and the main body mounting part protrudes towards the side where the electric appliance box cover body is located relative to the connecting part, so that an avoidance space for avoiding electric appliance mounting is formed between the main body mounting part and the back plate of the electric appliance box body.

10. A heat pump dryer comprising an outdoor unit, wherein the outdoor unit is the outdoor unit according to any one of claims 1 to 9.