CN217064369U - Heat pump unit with electric appliance box and bottom for heat convection - Google Patents

Abstract

An electrical box is arranged in a heat pump unit and comprises a box cover and a side plate, wherein the side plate extends and is connected to a chassis of the heat pump unit to form an accommodating cavity, and a variable frequency drive plate is arranged in the accommodating cavity; the lid extends to the chassis certain distance department apart from heat pump set along the curb plate, covers the upper portion in holding chamber, reserves the opening that is used for the radiating in holding chamber lower part. The utility model provides a bottom convection heat pump set, includes quick-witted case, extends along the first side, the second side and the third side of quick-witted incasement wall and is the fin of semi-enclosed structure, is located the electrical apparatus box of the fourth side outside the fin surrounds and sets up the fan at fin and electrical apparatus box top, and the air inlet has been seted up to machine bottom of the case portion, forms the wind chamber between the fan at top. The air inlet hole is formed in the bottom of the heat pump unit case, negative pressure is formed between the heat pump unit case and the fan at the top, and then convection is achieved, so that air flows into the case from the bottom and does not pass through the fins and is directly blown to the radiating fins of the variable frequency drive plate, and the radiating capacity of the variable frequency drive plate is improved.

Description

Heat pump unit with electric appliance box and bottom for heat convection

Technical Field

The utility model relates to a swimming pool machine heat pump set field, more specifically relates to an electrical apparatus box and bottom convection heat dissipation's heat pump set.

Background

The air-cooled driving frequency conversion module used by the traditional frequency conversion heat pump unit generally takes away heat on the heat dissipation plate through air. However, in the conventional variable frequency heat pump unit with the upper air outlet, when the heat pump unit is used for making cold water, the temperature of the fins is higher, and the ambient air can be heated, so that the temperature difference between the radiating fins of the variable frequency plate and the air is reduced, the heat dissipation of the driving plate is influenced, the temperature rise of the variable frequency plate is further influenced, and finally the heat pump unit can only ensure that the temperature of components is within a safe range by reducing the frequency of the compressor, and the refrigerating capacity of the heat pump unit is reduced. The mode of side air inlet has been adopted among traditional variable frequency heat pump set, and the air of flow direction variable frequency drive plate at first need be through around the fin around the variable frequency drive plate, receives on the fin heating after blow the fin of variable frequency drive plate, consequently has the defect that the fin heat transfer temperature difference of variable frequency drive plate is not enough for the heat-sinking capability of variable frequency drive plate worsens.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the not enough defect of frequency conversion drive plate fin heat transfer difference in temperature, through ensureing to blow to the air of frequency conversion drive plate fin not through the fin heating, and then increase the heat transfer difference in temperature, improve the heat-sinking capability of frequency conversion drive plate to improve heat pump set's refrigerating capacity.

In order to realize the purpose, the utility model discloses realize according to following technical scheme:

the electrical box is arranged in a heat pump unit and comprises a box cover and a side plate, wherein the side plate extends and is connected to a chassis of the heat pump unit to form an accommodating cavity, and a variable-frequency driving plate is arranged in the accommodating cavity; the box cover extends to a position away from a chassis of the heat pump unit by a certain distance along the side plate, covers the upper part of the accommodating cavity, and leaves an opening for heat dissipation at the lower part of the accommodating cavity.

Preferably, the bottom of the variable frequency drive plate is provided with a plurality of radiating fins, and the radiating fins are positioned in an opening at the lower part of the electrical box.

Preferably, a partition board is arranged between the variable frequency drive board and the radiating fins, two ends of the partition board extend to the side plates of the electrical appliance box to form a closed space with the box cover, and insects, mice and the like are prevented from entering the closed space.

Preferably, the side plates are uniformly distributed with heat dissipation holes.

Preferably, a water baffle is arranged on the side plate, and the electric control line is connected into the electric appliance box through the water baffle.

Preferably, the side plate is further provided with a needle valve bracket protruding from the side plate, and the needle valve bracket is used for placing a needle valve for filling the refrigerant.

The utility model provides a heat pump set of bottom convection heat dissipation, includes foretell electrical apparatus box, still includes quick-witted case, extends along first side, second side and the third side of quick-witted incasement wall and is the fin that semi-enclosed structure and sets up the fan at fin and electrical apparatus box top, the electrical apparatus box is located the fourth side beyond the fin surrounds, the fresh air inlet has been seted up to the bottom of quick-witted case, and the top form the wind chamber between the fan.

Preferably, a frequency conversion driving plate is installed in the electric appliance box, a plurality of radiating fins are arranged at the bottom of the frequency conversion driving plate, and the radiating fins are arranged in parallel to the air inlet holes at the bottom of the case.

Preferably, the fan is an axial fan.

Preferably, the top of the fan is provided with an air guide ring.

The utility model discloses an air inlet is seted up in the bottom of heat pump set machine case, and form negative pressure and then convection current between the fan at top, make the air flow into quick-witted case from the bottom and do not pass through the fin, directly blow to the fin of frequency conversion drive plate, and then increase the heat transfer difference in temperature, improve the heat-sinking capability of frequency conversion drive plate to improve heat pump set's refrigerating capacity.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

Fig. 1 is an exploded schematic view of an embodiment according to the present invention;

fig. 2 is a schematic perspective view of a base for dismounting according to an embodiment of the present invention.

Description of the reference numerals:

1-a chassis;

2-a fin;

3-an electrical box; 31-a variable frequency drive board; 32-box cover; 33-a heat sink; 34-side plates; 35-a first water baffle; 36-a second water baffle; 37-a third water baffle; 38-needle valve holder;

4-a fan; 41-wind guide ring;

5-a base;

6-air inlet.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention, and the technical effects achieved by the present invention clearer, it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments, and the technical solutions of the embodiments of the present invention are further described in detail below. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 2, the utility model provides a bottom convection heat pump set, including quick-witted case 1, along the first side of quick-witted case 1 inner wall, second side and third side extend be half surround structure fin 2, be located the electrical apparatus box 3 of the fourth side beyond fin 2 surrounds and set up fan 4 at fin 2 and electrical apparatus box 3 top, fin 2 is used for exchanging the heat with the ambient air. Electrical apparatus box 3 still is equipped with lid 32 and curb plate 34, and curb plate 34 extends and is connected to heat pump set's chassis, forms the holding chamber, and holding intracavity installation frequency conversion drive plate 31, frequency conversion drive plate 31 bottom are equipped with a plurality of fin 33, and lid 32 extends to the certain distance department apart from heat pump set's chassis along the curb plate, and from this, lid 32 covers the upper portion of electrical apparatus box 3, exposes a plurality of fin 33 of frequency conversion drive plate 31 bottom. The frequency conversion driving plate 31 is positioned in the upper closed space of the electric appliance box 3 covered by the box cover 32, so that the water resistance is facilitated; the heat sink 33, which requires little water resistance and has a large heat capacity, is located in an opening in the lower portion of the electrical box 3. A partition plate is arranged between the variable frequency drive plate 31 and the radiating fins 33, two ends of the partition plate extend to side plates of the electric appliance box, and a closed space is formed between the partition plate and the box cover and used for preventing insects and mice from entering. The side plate 34 is further provided with a first water baffle 35, a second water baffle 36 and a third water baffle 37, and the electric control line is connected into the electric appliance box through the first water baffle 35, the second water baffle 36 and the third water baffle 37. A needle holder 38 is also provided on one side of the side plate 34 for holding a needle for filling with refrigerant.

An air inlet hole 6 is formed in the bottom of the case, an air cavity is formed between the case and the top fan 4, the radiating fins are farther away from the top fan than the radiating fins are away from the air inlet hole in the bottom, and the distance between the radiating fins and the top fan is about 2-5 times of the distance between the radiating fins and the air inlet hole in the bottom. After the fan 4 is started, negative pressure is formed in the air cavity, the air pressure in the case 1 is low, the air pressure outside the case 1 is high, air is sucked through the bottom vent holes 6, heat exchange is carried out through the variable frequency drive plate radiating fins 33, and finally heat is discharged from the top of the case 1 and taken away. The top of the case 1 is further provided with a wind guide ring 41 for guiding the flow. The heat sink 33 is disposed parallel to the bottom air inlet 6, so that the air flow enters the chassis 1 through the bottom air inlet 6 and then blows onto the heat sink 33 in a vertical direction, so that the contact area with the air flow is maximized, thereby achieving the best heat dissipation.

The bottom of the case 1 is provided with an insulated wooden base 5, and the case 1 is fixed on the wooden base 5 through screws.

In the description herein, it is to be understood that the terms "upper," "lower," "left," "right," and the like are used merely for convenience in description and simplicity in operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

Furthermore, it should be understood that although the specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it will be understood by those skilled in the art that the specification as a whole and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and is not to be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive step, and these embodiments are all intended to fall within the scope of the present invention.

Claims (10)

1. An electrical box is characterized in that the electrical box is installed in a heat pump unit and comprises a box cover and a side plate, the side plate extends and is connected to a chassis of the heat pump unit to form an accommodating cavity, and a variable frequency driving plate is installed in the accommodating cavity; the lid extends to the chassis certain distance department apart from heat pump set along the curb plate, covers the upper portion in holding chamber, reserves the opening that is used for the radiating in holding chamber lower part.

2. The electrical box of claim 1, wherein a plurality of heat dissipation fins are disposed on the bottom of the variable frequency driving board, and the heat dissipation fins are disposed in the opening of the lower portion of the accommodating cavity.

3. The electrical box of claim 2, wherein a partition is arranged between the variable frequency driving board and the heat sink, and two ends of the partition extend to the side plates of the electrical box to form a closed space with the box cover.

4. The electrical box of claim 1, wherein the side plates are uniformly distributed with heat dissipation holes.

5. The electrical box of claim 1, wherein a water baffle is disposed on the side plate, and the electrical control line is connected to the electrical box through the water baffle.

6. The electrical box of claim 1, wherein the side plate further comprises a needle valve bracket protruding from the side plate.

7. A heat pump unit with bottom convection heat dissipation is characterized by comprising the electric appliance box of any one of claims 1 to 5, a case, fins extending along the first side, the second side and the third side of the inner wall of the case to form a semi-surrounding structure, and a fan arranged on the fins and the top of the electric appliance box, wherein the electric appliance box is arranged on the fourth side outside the surrounding of the fins, an air inlet hole is formed in the bottom of the case, and an air cavity is formed between the electric appliance box and the fan on the top.

8. The heat pump unit with bottom convection heat dissipation as recited in claim 7, wherein a variable frequency drive board is installed in the electrical box, and a plurality of heat dissipation fins are installed at the bottom of the variable frequency drive board and arranged parallel to the air inlet holes at the bottom of the cabinet.

9. The bottom convective heat pump unit of claim 7, wherein the fan is an axial fan.

10. The bottom-convection heat-radiation heat pump unit according to claim 7 or 9, wherein a wind guiding ring is arranged at the top of the fan.

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