Patent Description:
The present invention relates to the field of heating and air conditioning apparatus technologies, and in particular, to an integrated air source heat pump.

Air source heat pumps are either split or integrated. A split air source heat pump, similar to an air conditioner, also includes an indoor unit and an outdoor unit. Components such as a heat exchanger and a water pump are disposed in the indoor unit, and the indoor unit occupies some indoor living space, which affects the user's living experience. In order to solve a problem that the indoor unit occupies the indoor living space, an integrated air source heat pump emerges as the times require, and the integrated air source heat pump integrates the heat exchanger, the water pump and other components in the outdoor unit.

In the modern society where an inch of land is an inch of gold, high requirements are put forward for a maximum utilization of space, a small unit having a large capacity has become a goal pursued by people, and how to achieve a miniaturized design of the integrated air source heat pump is a hot research direction in the industry. With the development trend of miniaturization of the air source heat pump, a size of an electrical box which is an important component of the air source heat pump must be reduced as well, which requires a more compact layout of electrical components in an interior of the electrical box. In addition, while the electrical box is compactly designed, how to achieve efficient heat dissipation of the electrical box is also a technical problem to be solved.

<CIT> discloses a baffle structure, an electronic control box with the baffle structure, an air conditioner outdoor unit with the electronic control box, and an air conditioner with the air conditioner outdoor unit. The baffle structure is applied to the electronic control box. A containing cavity is formed in the electronic control box and comprises at least one air inlet and at least one air outlet. The electronic control box further comprises a control assembly contained in the containing cavity. The baffle structure comprises an installation part arranged in the electronic control box, and a water blocking plate arranged at one end of the installation part in a protruding manner. The water blocking plate is located between the air outlets and the control assembly. At least one cooling hole is formed in the water blocking plate. The air inlets, the cooling holes and the air outlets communicate to form a gas flow channel.

<CIT> discloses an electric control module, an outdoor unit of an air conditioner and the air conditioner. The electric control module is arranged in a shell of the outdoor unit of the air conditioner, and comprises a circuit board, a mounting box, a support box body and a cover plate, wherein an accommodating tank is formed in the mounting box; the circuit board is partially accommodated in the accommodating tank; an accommodating cavity is formed in the support box body, and is provided with an opening; the circuit board and the mounting box are accommodated in the accommodating cavity through the opening; the support box body is provided with at least one exhaust port and at least one intake port communicating with the accommodating cavity; the cover plate covers the opening to close the accommodating cavity; and one side, deviated from the circuit board, of the mounting box butts against the cover plate.

<CIT> discloses an outdoor machine and an air conditioner. The outdoor machine comprises an outdoor shell, a heat exchanger, a partition plate and an electric control device, wherein the outdoor shell is provided with an air inlet and an air outlet; the heat exchanger is located between the air inlet and the air outlet; an accommodating space is defined between the heat exchanger and one side, close to the air outlet, of the outdoor shell; the partition plate is arranged in the accommodating space to partition the accommodating space into a compressor cavity and a fan cavity; the electric control device comprises an electric control box, a circuit board, a heating element and a radiator; the electric control box is located in the compressor cavity and roughly vertically arranged on the side wall of the partition plate; one side, toward the partition plate, of the electric control box is open; the circuit board is roughly vertically arranged in the electric control box and one side, with the heating element, of the circuit board is arranged opposite to the parturition plate through the open side of the electric control box; the radiator is in contact with the heating element; and a cooling fin of the radiator sequentially passes through the side wall of the electric control box and the partition plate to extend into the fan cavity.

The present disclosure provides an integrated air source heat pump , and the integrated air source heat pump is defined by the appended claim <NUM>.

In order to describe technical solutions in embodiments of the present disclosure or in the prior art more clearly, accompanying drawings to be used in the embodiments or the prior art will be briefly introduced below. However, the accompanying drawings to be described below are merely some embodiments of the present disclosure, and a person of ordinary skill in the art may obtain other drawings according to these drawings without paying any creative effort.

In order to make the purpose, technical solutions and advantages of embodiments of the present disclosure clear, technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present disclosure. However, the described embodiments are merely some but not all embodiments of the present disclosure. All other embodiments obtained by a person of ordinary skill in the art on the basis of the embodiments of the present disclosure and falling within the scope of the claims shall be included in the protection scope of the present disclosure.

The present disclosure provides an integrated air source heat pump. As shown in <FIG>, the integrated air source heat pump includes a housing <NUM>. The housing <NUM> forms an accommodating space <NUM>.

An electrical box <NUM> is disposed at a top of the accommodating space <NUM>. The electrical box <NUM> is disposed at the top, so that the accommodating space <NUM> may be fully utilized, which helps to reduce a volume of a whole machine and achieve a miniaturization design of the whole machine.

<FIG> is a diagram showing a structure of the electrical box, in accordance with some embodiments of the present disclosure; and <FIG> is an exploded view showing a structure of the electrical box, in accordance with some embodiments of the present disclosure. Referring to <FIG> and <FIG>, the electrical box <NUM> includes a main body of the electrical box. The main body of the electrical box includes a box body <NUM> and a box cover <NUM>. The box body <NUM> and the box cover <NUM> are enclosed to form an inner space of the electrical box for installing components.

The box body <NUM> includes a bottom side plate <NUM>, and a left side plate <NUM>, a right side plate <NUM>, a front side plate <NUM> and a rear side plate <NUM> that are disposed around the bottom side plate <NUM> and extend toward a direction of the box cover <NUM>.

A bracket <NUM> is fixedly connected to the bottom side plate <NUM> by means of screws or the like. The bracket <NUM> includes a first bracket <NUM> and a second bracket <NUM>. The first bracket <NUM> and the second bracket <NUM> provide support for installations of other components.

A driving board <NUM> is fixedly connected to a side of the first bracket <NUM> facing the box cover <NUM>, and a radiator <NUM> is fixedly connected to a side of the first bracket <NUM> facing the bottom side plate <NUM> by means of screws or the like.

A main control board <NUM> is fixedly connected to a side of the second bracket <NUM> facing the box cover <NUM>, and the main control board <NUM> is connected to a debugging board <NUM>.

The driving board <NUM> generally integrates heat-generating components such as a central processing unit (CPU), a compressor driving chip, a fan driving chip and a silicon bridge. The main control board <NUM> generally integrates heat-generating components such as an electrolytic capacitor and a switching power chip. An operating current of the driving board <NUM> is high. An amount of heat generated by the driving board <NUM> is higher than an amount of heat generated by the main control board <NUM>.

The first bracket <NUM> is located in a middle region of the inner space of the electrical box <NUM>. The second bracket <NUM> is located in a right region, of the inner space of the electrical box <NUM>, proximate to the right side plate <NUM>. An opening <NUM> for the radiator <NUM> to protrude is disposed on the bottom side plate <NUM>, and the radiator <NUM> protrudes from the opening <NUM>.

Thus, in the inner space of the electrical box <NUM>, the middle region in which the driving board <NUM> is disposed is a high heat region (marked as X1), and the right region in which the main control board <NUM> is disposed is a medium heat region (marked as X2).

The bottom side plate <NUM> is further provided with an inductance coil <NUM>, which is located in a left region, of the inner space of the electrical box <NUM>, proximate to the left side plate <NUM>, and the left region is a low heat region (marked as X3).

A plurality of first air inlet holes <NUM> are disposed on the right side plate <NUM>, a plurality of second air inlet holes <NUM> are disposed on the rear side plate <NUM>, and a plurality of air outlet holes <NUM> are disposed on the left side plate <NUM>.

The air enters inside the electrical box <NUM> from the first air inlet holes <NUM> and the second air inlet holes <NUM>, sequentially flows through the medium heat region X2, the high heat region X1 and the low heat region X3, and then flows out from the air outlet holes <NUM>, so that ventilation and heat dissipation of electrical components such as the main control board <NUM>, the driving board <NUM> and the inductance coil <NUM> are achieved, energy consumption is low, and a heat dissipation effect is good.

Meanwhile, the radiator <NUM> performs synchronous heat dissipation on the driving board <NUM> with a high temperature, that is, double heat dissipation is performed on the driving board <NUM> by using the radiator <NUM> and natural wind, which may effectively and rapidly reduce a temperature of the high heat region X1.

A diagram showing a structure of the first bracket <NUM> may refer to <FIG>. A plurality of support portions <NUM> are disposed on side plates around the first bracket <NUM> and in a middle region of the first bracket <NUM>, and are used for abutting against the driving board <NUM>, which enhances strength of the first bracket <NUM>, and supports the driving board <NUM> to avoid a deformation of the driving board <NUM>.

A plurality of claws <NUM> are also disposed on the side plates around the first bracket <NUM>, and the plurality of claws <NUM> are used for being snapped with the driving board <NUM> to further enhance connection reliability of the driving board <NUM> and prevent the driving board <NUM> from tilting.

Similarly, the plurality of support portions <NUM> and the plurality of claws <NUM> are also disposed on the second bracket <NUM>, which are used to enhance connection reliability of the main control board <NUM> and reduce a deformation of the main control board <NUM>.

Apertures of the first air inlet holes <NUM>, the second air inlet holes <NUM> and the air outlet holes <NUM> are preferably less than <NUM>, so that in a case where the ventilation is ensured, foreign matters such as insects may be prevented from entering inside the electrical box <NUM> to cause an accidental short circuit.

As shown in <FIG>, the box cover <NUM> has a turn-up plate <NUM> bent downwards, and there is an air outlet gap <NUM> between the turn-up plate <NUM> and the air outlet holes <NUM>. In a case where the ventilation is ensured, the turn-up plate <NUM> may prevent rainwater from entering inside the electrical box <NUM> to cause the short circuit, and improve reliability of the electrical box <NUM>.

As shown in <FIG>, a plurality of wiring holes <NUM> are disposed on the front side plate <NUM> and the rear side plate <NUM>, and are used for wiring of internal electrical components. Wire binding brackets <NUM> are also disposed at positions proximate to the wiring holes <NUM>. The wire binding brackets <NUM> are used for wire binding, so that the wiring is reliable, neat and orderly.

The electrical box <NUM> is applied to the integrated air source heat pump. In order to further enhance the heat dissipation effect of the electrical box <NUM>, improve compactness of an internal structure of the air source heat pump, and reduce the volume of the whole machine, in the present disclosure, innovative improvements are made on an arrangement position of the electrical box <NUM>, an assembled structure between the electrical box <NUM> and the air source heat pump, and an internal structure layout of the air source heat pump.

For the diagrams showing a structure of the integrated air source heat pump disclosed by the embodiments, reference may be made to <FIG>. <FIG> is a diagram showing a structure of the whole machine of the integrated air source heat pump. <FIG> is an exploded view showing a structure of the integrated air source heat pump. <FIG> and <FIG> are diagrams showing layout structures of the internal components of the integrated air source heat pump, and in <FIG>, the housing <NUM> is omitted for convenience of showing the internal structure.

Referring to <FIG> and <FIG>, the integrated air source heat pump includes the housing <NUM>. The housing <NUM> includes a bottom plate <NUM>, a top plate <NUM>, a left side wall, a right side wall <NUM>, and a rear plate, and a front portion of the housing <NUM> is composed of a fan panel <NUM> and a maintenance plate <NUM>.

As shown in <FIG>, the fan panel <NUM> is disposed on a left side, and air outlets <NUM> are disposed on the fan panel <NUM> for air to go out. The maintenance plate <NUM> is disposed on a right side. In a case where the components inside the housing <NUM> need to be repaired, the maintenance plate <NUM> is detached.

Referring to <FIG>, a partition plate <NUM> and a support plate <NUM> extending along a vertical direction that are arranged separately are disposed on the bottom plate <NUM>. The partition plate <NUM> divides the inner space of the housing <NUM> into a first installation space <NUM> and a second installation space <NUM> disposed on a left side and a right side. The support plate <NUM> is located in the second installation space <NUM> and is directly opposite to the partition plate <NUM>.

A first heat exchanger <NUM> is disposed in the first installation space <NUM>, a fan bracket <NUM> is disposed on the first heat exchanger <NUM>, and fans <NUM> are disposed on the fan bracket <NUM>.

A compressor <NUM>, a refrigeration system container <NUM>, a water pump <NUM>, a second heat exchanger <NUM>, wiring and tubes or the like are disposed in the second installation space <NUM>.

The electrical box <NUM> is disposed at tops of the first installation space <NUM> and the second installation space <NUM>. A left end of the electrical box <NUM> is fixedly connected to the fan bracket <NUM>, a right end of the electrical box <NUM> is fixedly connected to the support plate <NUM>, and the bottom side plate <NUM> of the electrical box <NUM> abuts against an upper end of the partition plate <NUM>.

Both the radiator <NUM> and the debugging board <NUM> are located in the inner space of the housing <NUM>.

<FIG> is a front view of the integrated air source heat pump (with the housing and components in the second installation space omitted), in accordance with some embodiments of the present disclosure. <FIG> shows a flow direction of air inside the air source heat pump when the fans <NUM> are operating. A part of outside air flows inside the electrical box <NUM> from the first air inlet holes <NUM> and the second air inlet holes <NUM> of the electrical box <NUM> due to wind pressure, and then flows out from the air outlet holes <NUM> of the electrical box <NUM>.

Another part of the outside air enters the second installation space <NUM> from air inlets <NUM> on the housing <NUM> and flows upwards due to the wind pressure, then enters inside the electrical box <NUM> through the opening <NUM> on the bottom side plate <NUM> of the electrical box <NUM>, and finally flows out from the air outlet holes <NUM>. Air flows into the electrical box <NUM> from a rear side, a right side and a bottom side of the electrical box <NUM>, and flows from the right end of the electrical box <NUM> to the left end of the electrical box <NUM>, so as to dissipate the heat of the electrical components inside the electrical box <NUM>, the heat dissipation effect is good and there is no space that cannot be dissipated heat.

In the present disclosure, the electrical box <NUM> is disposed at the top, so that the inner space of the housing <NUM> is fully utilized, which helps to reduce the volume of the whole machine and achieve the miniaturization design of the whole machine.

In a possible embodiment, as shown in <FIG>, the first heat exchanger <NUM> is an L-shaped fin heat exchanger. The first heat exchanger <NUM> is fixedly connected to the bottom plate <NUM>. A long side portion of the first heat exchanger <NUM> is located on a rear side of the first installation space <NUM>, and a short side portion of the first heat exchanger <NUM> is located on a left side of the first installation space <NUM>.

The fan bracket <NUM> extends along a height direction of the first heat exchanger <NUM>. The fans <NUM> are located in a space enclosed by the L-shaped first heat exchanger <NUM> to improve a heat exchange efficiency. A side edge of the partition plate <NUM> proximate to the first heat exchanger <NUM> is fixedly connected to the first heat exchanger <NUM>.

As shown in <FIG>, the fan bracket <NUM> has a fan bracket vertical portion <NUM> and a fan bracket lateral portion <NUM>. The fan bracket vertical portion <NUM> is fixedly connected to the first heat exchanger <NUM>, and the fan bracket lateral portion <NUM> is located above the fans <NUM>.

The fans <NUM> are fixedly connected to the fan bracket vertical portion <NUM>, and the bottom side plate <NUM> of the electrical box <NUM> is fixedly connected to the fan bracket lateral portion <NUM> to fix the left end of the electrical box <NUM>.

In some embodiments of the present disclosure, as shown in <FIG>, the partition plate <NUM> has an L-shaped structure. The partition plate <NUM> includes a partition plate body <NUM> and a partition plate flange <NUM>. The partition plate body <NUM> is fixedly connected to the first heat exchanger <NUM>, and the partition plate flange <NUM> is connected to a front side wall of the housing <NUM>.

The fan panel <NUM> located on the front side wall of the housing <NUM> is fixedly connected to the partition plate flange <NUM>, and the maintenance plate <NUM> is detachably and fixedly connected to the partition plate flange <NUM>.

Compared with a common C-shaped partition plate in the prior art, a length of the L-shaped first heat exchanger <NUM> is shortened, and the L-shaped first heat exchanger <NUM> is fixedly connected to the L-shaped partition plate <NUM>, which helps to reduce an internal occupied space of the partition plate <NUM>, and further helps to reduce the volume of the whole machine.

As shown in <FIG>, a layout of the components in the second installation space <NUM> is as follows. The compressor <NUM> and the refrigeration system container <NUM> are fixedly connected to the bottom plate <NUM>, the second heat exchanger <NUM> is fixedly connected to the support plate <NUM>. The water pump <NUM> is located above the compressor <NUM> and the refrigeration system container <NUM>, and the water pump <NUM> is fixedly disposed on a water pump bracket <NUM>. An end of the water pump bracket <NUM> is fixedly connected to the partition plate <NUM>, and another end of the water pump bracket <NUM> is fixedly connected to the support plate <NUM>. The components are compact in layout and occupy small space.

The second heat exchanger <NUM> may be a water-fluorine plate heat exchanger, a shell-and-tube heat exchanger, a double pipe heat exchanger, or the like. The refrigeration system container <NUM> may be a liquid storage tank or the like.

As shown in <FIG> and <FIG>, a support beam <NUM> is also disposed in the second installation space <NUM>. An end of the support beam <NUM> is fixedly connected to the partition plate <NUM>, and another end of the support beam <NUM> is fixedly connected to the second heat exchanger <NUM>.

The debugging board <NUM> is fixedly connected to the support beam <NUM>, so as to achieve a fixed installation of the debugging board <NUM> and prevent the debugging board <NUM> from shaking.

The support plate <NUM>, preferably, has an L-shaped structure. A lower end of the support plate <NUM> is fixedly installed on a right side edge and a rear side edge of the bottom plate <NUM>, that is, the lower end of the support plate <NUM> is fixedly installed at a right rear corner of the bottom plate <NUM>. Meanwhile, an upper end of the support plate <NUM> is fixedly connected to the right side plate <NUM> and the rear side plate <NUM> of the electrical box <NUM>, so as to fix the right end of the electrical box <NUM>.

So far, through a fixed connection between the left end of the electrical box <NUM> and the fan bracket lateral portion <NUM>, a fixed connection between the right end of the electrical box <NUM> and the support plate <NUM>, an abutting relationship between the bottom side plate <NUM> and the partition plate <NUM>, and a fixed connection between the debugging board <NUM> and the support beam <NUM>, a fixed installation of the electrical box <NUM> is achieved, so that the electrical box <NUM> is reliably and stably installed at a top of the air source heat pump, an existing structure of the air source heat pump is fully used for installation support, and small space is occupied.

The debugging board <NUM> is preferably located in the second installation space <NUM>. During maintenance, the debugging board <NUM> may be repaired by detaching the maintenance plate <NUM> at the front portion, which is easy to operate.

A plurality of through holes (not shown) for ventilation are disposed both on the partition plate <NUM> and the support plate <NUM>, so as to improve fluidity of air in the first installation space <NUM> and the second installation space <NUM>, which facilitates the heat dissipation.

In a case where the bottom side plate <NUM> of the electrical box <NUM> abuts against the partition plate <NUM>, in order to enhance an abutting firmness between the bottom side plate <NUM> of the electrical box <NUM> and the partition plate <NUM>, and to enhance the heat dissipation effect of the radiator <NUM>, a structure of the radiator <NUM> is also improved in the present disclosure.

For a diagram showing the structure of the radiator <NUM>, reference may be made to <FIG>. The radiator <NUM> includes a first heat dissipation fin group <NUM> and a second heat dissipation fin group <NUM> with a gap <NUM> therebetween.

The partition plate <NUM> is inserted in the gap <NUM> between the first heat dissipation fin group <NUM> and the second heat dissipation fin group <NUM>, and abuts against the bottom side plate <NUM>. The first heat dissipation fin group <NUM> is located in the first installation space <NUM>, and the second heat dissipation fin group <NUM> is located in the second installation space <NUM>.

The gap <NUM> between the first heat dissipation fin group <NUM> and the second heat dissipation fin group <NUM> has a limiting effect on the upper end of the partition plate <NUM>, so as to prevent the upper end of the partition plate <NUM> from tilting or shaking.

Meanwhile, the radiator <NUM> designed in this way can make full use of top spaces of the first installation space <NUM> and the second installation space <NUM>, so that the radiator <NUM> is made as large as possible to improve the heat dissipation efficiency.

In some embodiments of the present disclosure, the first heat dissipation fin group <NUM> is proximate to the left side plate <NUM>, there is a slope portion <NUM> on a side of the first heat dissipation fin group <NUM> proximate to the fans <NUM>. The slope portion <NUM> is used to provide a space for the fan bracket lateral portion <NUM>, so as to facilitate the installation of the electrical box <NUM>.

Meanwhile, the first heat dissipation fin group <NUM> is proximate to the fans <NUM>, which also facilitates airflow at the fans <NUM> to dissipate heat from the first heat dissipation fin group <NUM>, thereby improving the heat dissipation efficiency.

In some embodiments of the present disclosure, the second heat dissipation fin group <NUM> is proximate to the right side plate <NUM>. At least one ventilation passage <NUM> for ventilation is disposed on the second heat dissipation fin group <NUM>. In this embodiment, there are two ventilation passages <NUM>. The ventilation passages <NUM> are perpendicular to fins of the second heat dissipation fin group <NUM>.

Airflow flowing upwards from a bottom of the second installation space <NUM> will flow through an interior of the second heat dissipation fin group <NUM> through the ventilation passages <NUM>, which helps to improve the heat dissipation efficiency of the second heat dissipation fin group <NUM>.

<FIG> is an exploded view showing a structure of the electrical box, in accordance with some embodiments of the present disclosure. In a possible embodiment, referring to <FIG>, the rear side plate <NUM> of the electrical box <NUM> includes a first rear side plate portion <NUM>, a second rear side plate portion <NUM> and a third rear side plate portion <NUM> that are sequentially connected to form a stepped structure. A distance between the first rear side plate portion <NUM> and the front side plate <NUM> is greater than a distance between the third rear side plate portion <NUM> and the front side plate <NUM>. The second air inlets holes <NUM> are disposed on the first rear side plate portion <NUM>.

The rear side plate <NUM> is designed into the stepped structure, which is mainly to enable the electrical box <NUM> to be well matched and be connected with the internal components such as the first heat exchanger <NUM> and to reduce the occupied space.

Claim 1:
An integrated air source heat pump, comprising:
a housing (<NUM>), the housing (<NUM>) being used to form an accommodating space (<NUM>); and
an electrical box (<NUM>), the electrical box (<NUM>) being disposed in the accommodating space (<NUM>);
characterized in that, the electrical box (<NUM>) includes:
a main body of the electrical box (<NUM>), an interior of the main body of the electrical box (<NUM>) forming an inner space of the electrical box (<NUM>);
a bracket (<NUM>), the bracket (<NUM>) being used as an installation carrier for components, and the bracket (<NUM>) being disposed in the inner space of the electrical box (<NUM>);
a driving board (<NUM>), the driving board (<NUM>) being disposed on the bracket (<NUM>), the driving board (<NUM>) being located at a middle position of the inner space of the electrical box (<NUM>);
a radiator (<NUM>), the radiator (<NUM>) being used to dissipate heat from the inner space of the electrical box (<NUM>), the radiator (<NUM>) being disposed on the bracket (<NUM>), and the radiator (<NUM>) and the driving board (<NUM>) being disposed on two opposite sides of the bracket (<NUM>), respectively;
a plurality of first air inlet holes (<NUM>), the first air inlet holes (<NUM>) being disposed on a right side of the main body of the electrical box (<NUM>);
a plurality of second air inlet holes (<NUM>), the second air inlet holes (<NUM>) being disposed on a rear side of the main body of the electrical box (<NUM>);
a plurality of air outlet holes (<NUM>), the air outlet holes (<NUM>) being disposed on a left side of the main body of the electrical box (<NUM>);
a main control board (<NUM>), the main control board (<NUM>) being disposed on the bracket (<NUM>), and the main control board (<NUM>) being located at a right position of the inner space of the electrical box (<NUM>);
an inductance coil (<NUM>), the inductance coil (<NUM>) being located at a left position of the inner space of the electrical box (<NUM>);
a debugging board (<NUM>), the debugging board (<NUM>) being disposed on the main control board (<NUM>);
the main body of the electrical box (<NUM>) includes a box body (<NUM>) and a box cover (<NUM>), and the inner space of the electrical box (<NUM>) is formed between the box body (<NUM>) and the box cover (<NUM>); and
the box cover (<NUM>) has a turn-up plate (<NUM>) bent downwards, and an air outlet gap (<NUM>) is disposed between the turn-up plate (<NUM>) and the air outlet holes (<NUM>).