CN219876628U - Radiator and air condensing units - Google Patents

Abstract

The utility model relates to the technical field of air conditioning, and discloses a radiator, which comprises a bracket and a radiator, wherein the bracket is provided with a hollowed-out part; the base is embedded in the hollowed-out part and is detachably connected with the bracket; is configured to be in thermally conductive contact with a heat source region of an electronic control board to receive heat; and the heat dissipation piece is detachably connected with the bracket and is in heat conduction connection with the base so as to dissipate heat transferred by the base. The base is fixed through the bracket, and the electric control plate and the radiating piece are connected, so that the overall weight and cost of the radiator are reduced; the base corresponds to the heat source area of the electric control plate and is arranged, heat of the electric control plate is received and then transferred to the radiating piece, air flows through the surface of the radiating piece to conduct air cooling and radiating, radiating efficiency of the radiator is improved, radiating effect of the radiator on the electric control plate is guaranteed, and refrigerating effect of the air conditioner under high-temperature working conditions is further guaranteed. The utility model also discloses an air conditioner outdoor unit.

Description

Radiator and air condensing units

Technical Field

The present utility model relates to the field of air conditioning technology, and for example, to a radiator and an air conditioner outdoor unit.

Background

The variable frequency power module is an important part of the variable frequency air conditioner, a plurality of power chips are integrated in the variable frequency power module, so that the heat flux density is high and the heat is serious when the variable frequency power module works, the larger the refrigerating capacity of the air conditioner is, the higher the weather is, the larger the heating value of the variable frequency power module is when the compressor works, and the compressor has to be reduced by about 50% in order to ensure the normal and safe work of the variable frequency power module, so that the weather is hotter, and the refrigerating power of the air conditioner is not supplied.

The variable frequency air conditioner of the multi-split air conditioner adopts an ejector structural design, an electric control plate and a radiator are arranged in an electric control box, and fins of the radiator extend out of the electric control box to form forced convection air cooling heat dissipation under the air suction effect of a top axial flow fan.

The existing radiator comprises an aluminum extruded radiator, a heat pipe fin radiator, a heat pipe embedded aluminum substrate radiator, an aluminum inflation plate gravity type plate fin phase change radiator and the like, and the heat radiation capacity is improved and mainly optimized around the radiator body, for example, the heat radiation capacity is optimized by changing the thickness of an aluminum substrate, the thickness of aluminum fins, the heights of the aluminum fins, the number of the aluminum fins and the like. However, the disadvantage is that the optimization space of the body is limited by installation space, weight, material usage, cost, etc.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

when the existing radiator is in a high-temperature refrigeration working condition, the whole weight and cost of the radiator cannot be reduced under the precondition of guaranteeing the heat dissipation capacity of the frequency conversion module.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.

The embodiment of the disclosure provides a radiator and an air conditioner outdoor unit, so that the overall weight and cost of the radiator are reduced under the premise of ensuring the radiating capacity of the radiator to a frequency conversion module.

In some embodiments, the heat sink comprises:

the bracket is provided with a hollowed-out part;

the base is embedded in the hollowed-out part and is detachably connected with the bracket; is configured to be in thermally conductive contact with a heat source region of an electronic control board to receive heat;

and the heat dissipation piece is detachably connected with the bracket and is in heat conduction connection with the base so as to dissipate heat transferred by the base.

In some embodiments, the stent comprises:

the first side surface is connected with the electric control board;

the second side surface is arranged opposite to the first side surface and is connected with the heat dissipation piece;

the second side face is provided with a mounting groove at the edge of the hollowed-out part, and the mounting groove is used for accommodating and mounting the edge of the base.

In some embodiments, the base comprises:

the main body part penetrates through the hollowed-out part;

and the fixing part is positioned at the side part of the main body part and is embedded in the mounting groove so that the base is connected with the bracket.

In some embodiments, the fixing portion includes a first fixing block and a second fixing block, the first fixing block and the second fixing block being provided on both sides of the body portion in a width direction, respectively;

wherein, in the case that the base is connected with the bracket, the distance from the first fixing block to the first edge of the bracket is smaller than the distance from the second fixing block to the second edge of the bracket.

In some embodiments, the heat sink comprises:

the temperature equalizing plate is detachably connected with the bracket and is in heat conduction contact with the base so as to transfer heat;

the fin group is in heat conduction connection with the temperature equalization plate so as to radiate heat transferred by the temperature equalization plate;

the fin group comprises a plurality of fins, and the fins are perpendicular to the temperature equalizing plate.

In some embodiments, the temperature equalization plate comprises a plurality of channels, and a heat transfer working medium is poured into a plurality of channels so as to transfer heat through phase change of the heat transfer working medium;

wherein the channel is arranged obliquely.

In some embodiments, the channel is disposed obliquely in a bottom-up direction from the first fixed block of the base to the second fixed block of the base with the base mounted vertically.

In some embodiments, a capillary structure is disposed within the channel to extend the flow area of the heat transfer medium within the channel.

In some embodiments, the bracket is made of plastic; and/or the number of the groups of groups,

the bracket is configured with a plurality of mounting holes, and the diameters of part of the mounting holes are the same.

In some embodiments, the air conditioner outdoor unit includes: the radiator provided in the foregoing embodiment;

wherein, the top of the base is parallel to the top of the shell of the air conditioner outdoor unit; and/or the included angle between the channel of the heat dissipation piece and the bottom of the casing of the air conditioner outdoor unit is 10-90 degrees.

The radiator and the air conditioner outdoor unit provided by the embodiment of the disclosure can realize the following technical effects:

the base is fixed through the bracket, and the electric control plate and the radiating piece are connected, so that the overall weight and cost of the radiator are reduced; the base corresponds to the heat source area of the electric control plate and is arranged, heat of the electric control plate is received and then transferred to the radiating piece, air flows through the surface of the radiating piece to conduct air cooling and radiating, radiating efficiency of the radiator is improved, radiating effect of the radiator on the electric control plate is guaranteed, and refrigerating effect of the air conditioner under high-temperature working conditions is further guaranteed.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the utility model.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:

FIG. 1 is an exploded schematic view of the heat sink provided by embodiments of the present disclosure;

FIG. 2 is a schematic structural view of the bracket provided by an embodiment of the present disclosure;

FIG. 3 is a schematic view of another view of the bracket provided by an embodiment of the present disclosure;

FIG. 4 is a schematic view of a heat sink according to another embodiment of the present disclosure;

FIG. 5 is a schematic view of a heat sink according to another embodiment of the present disclosure;

fig. 6 is a partial schematic view of the outdoor unit of the air conditioner according to the embodiment of the present disclosure;

fig. 7 is a schematic view of a usage state of the heat sink according to an embodiment of the present disclosure.

Reference numerals:

10: a bracket; 101: a hollowed-out part; 102: a first side; 103: a second side; 104: a first edge; 105: a second edge; 106: a mounting groove; 107: a mounting hole; 20: a base; 201: a main body portion; 202: a first fixed block; 203: a second fixed block; 30: a temperature equalizing plate; 40: a fin group; 401: a fin; 50: a housing; 60: a blower.

Detailed Description

So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.

The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe embodiments of the present disclosure and embodiments thereof and are not intended to limit the indicated device, element, or component to a particular orientation or to be constructed and operated in a particular orientation. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the embodiments of the present disclosure will be understood by those of ordinary skill in the art in view of the specific circumstances.

In addition, the terms "disposed," "connected," "secured" and "affixed" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the embodiments of the present disclosure may be understood by those of ordinary skill in the art according to specific circumstances.

The term "plurality" means two or more, unless otherwise indicated.

In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.

It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.

In the radiator and the air conditioner outdoor unit related to the embodiment of the disclosure, the radiator is arranged aiming at the frequency conversion module of the air conditioner outdoor unit, and radiates heat and cools the frequency conversion module so as to improve the refrigerating effect of the air conditioner in a high-temperature environment. It should be noted that the radiator provided in this embodiment may also be applied to a heat pump outdoor unit.

As shown in connection with fig. 1-5, embodiments of the present disclosure provide a heat sink. The heat sink includes a bracket 10, a base 20, and a heat sink. A bracket 10 configured with a hollowed-out portion 101; the base 20 is embedded in the hollowed-out part 101 and is detachably connected with the bracket 10; is configured to be in thermally conductive contact with a heat source region of an electronic control board to receive heat; the heat dissipation member is detachably connected with the bracket 10 and is in heat conduction connection with the base 20 so as to dissipate heat transferred by the base 20.

By adopting the radiator provided by the embodiment of the disclosure, the base 20 is fixed through the bracket 10 and plays a role of connecting the electric control plate and the radiating piece, so that the overall weight and cost of the radiator are reduced; the base 20 corresponds to the heat source area of the electric control plate and is arranged to receive heat of the electric control plate and then transmit the heat to the radiating piece, air flows through the surface of the radiating piece to perform air cooling and radiating, so that the radiating efficiency of the radiator is improved, the radiating effect of the radiator on the electric control plate is guaranteed, and the refrigerating effect of the air conditioner under the high-temperature working condition is further guaranteed.

The support 10 may be a frame structure or a hollow structure. Next, the bracket 10 is made of a lightweight material. Such as plastic, wood, or highly thermally conductive insulating materials, etc. The bracket 10 made of plastic is light in weight, and can effectively reduce the weight of the whole radiator. In addition, the bracket 10 is made of plastic, and the production cost of the radiator can be reduced. The bracket 10 and the base 20 can be connected by fasteners or by bonding.

The base 20 is embedded in the hollow part 101 of the bracket 10 and is fixedly arranged. The base 20 includes a heat conducting surface and a heat radiating surface, wherein the heat conducting surface and the heat radiating surface of the base 20 are flush with the surface of the bracket 10 or protrude from the surface of the bracket 10. In this way, it is ensured that the heat conducting surface of the base 20 is in heat conducting contact with the electric control board, and that the heat radiating surface of the base 20 is in heat conducting contact with the heat radiating member, so as to perform heat transfer.

The base 20 is made of metal to transfer heat. In addition, the size of the base 20 is smaller and is only arranged for the heat source area of the electric control plate, so that on one hand, weight increase caused by oversized size of the base 20 is reduced, on the other hand, the heat source area of the electric control plate is quickly cooled, the local heat of the electric control plate is reduced, and the electric control plate is prevented from being burnt out to influence use.

The heat sink is detachably connected to the support 10 and is in heat conductive contact with the base 20. The heat sink receives heat transferred from the base 20, wherein a size of a contact surface of the heat sink with the base 20 is larger than a size of a heat dissipating surface of the base 20. Heat is transferred from the base 20 to the heat sink for dispersion, and air-cooled heat dissipation is performed when the air flow flows through the surface of the heat sink, so that the heat dissipation efficiency of the heat sink to the electric control board can be improved.

Optionally, the stand 10 includes: the first side surface 102 is connected with the electric control board; the second side 103 is opposite to the first side 102 and is connected with the heat dissipation element; the second side 103 has a mounting groove 106 at an edge of the hollow portion 101, and the mounting groove 106 is used for accommodating an edge of the mounting base 20.

The bracket 10 not only can be used for connecting and fixing the radiator and the electric control board, but also can be used for connecting and fixing all radiating components of the radiator, namely, the integral radiator is fixed. The bracket 10 can be connected with the electric control plate and the heat dissipation piece by adopting fasteners, so that the disassembly and assembly are facilitated. In addition, the bracket 10, the electric control board and the heat dissipation member can be bonded, wherein, heat-conducting glue can be used in bonding. So, not only can realize the connection between every two fixed, but also can improve heat transfer efficiency through the heat conduction glue, and then improve the radiating effect of radiator to automatically controlled board.

The base 20 is arranged in the hollowed-out part 101 of the support 10, and for better mounting and fixing of the base 20, the mounting groove 106 is formed in the second side 103 of the support 10, so that the edge of the base 20 is embedded in the mounting groove 106 under the condition of penetrating through the hollowed-out part 101, and a superposition area exists between the base 20 and the support 10, and the base 20 and the support 10 can be connected and fixed through a fastener.

Alternatively, the mounting groove 106 is communicated with the hollowed-out portion 101 and is located in a local area on one side of the hollowed-out portion 101. That is, it can be understood that the size of the communication opening between the mounting groove 106 and the hollowed-out portion 101 is smaller than the length of the hollowed-out portion 101 on the side. In addition, the thickness of the region of the base 20 embedded in the mounting groove 106 is smaller than the thickness of the through-hole 101 of the base 20. In this way, the weight influence due to the connection and fixation of the base 20 and the bracket 10 is reduced as much as possible.

In this embodiment, the mounting groove 106 is configured on the second side 103 of the bracket 10. Under the condition that the whole assembly of the radiator is completed, the installation groove 106 faces the side of the radiating piece, so that the contact area between the base 20 and the radiating piece is increased, and the heat transfer efficiency of the base 20 to the radiating piece is improved, and the heat dissipation efficiency of a heat source area of the electric control plate is improved.

Optionally, the base 20 includes: a main body 201 penetrating through the hollow portion 101; and a fixing portion located at a side portion of the main body portion 201, the fixing portion being fitted into the mounting groove 106 so that the base 20 is coupled with the bracket 10.

The main body 201 of the base 20 penetrates through the hollow portion 101 of the bracket 10, and is mainly used for transferring heat generated in a heat source region of the electric control board to the heat dissipation member to dissipate heat and cool, so as to avoid overhigh local temperature of the electric control board. The fixing portion of the base 20 is embedded in the mounting groove 106, so that on one hand, the base 20 and the support 10 are convenient to mount and fix, and on the other hand, the fixing portion of the base 20 is clamped between the support 10 and the heat dissipation member, and the base 20 can be effectively prevented from falling off from the support 10.

Illustratively, the base 20 and the bracket 10 may not be connected by fasteners or may not be bonded. The main body 201 of the base 20 directly penetrates through the hollow portion 101, the fixing portion is embedded in the mounting groove 106, and under the condition that the bracket 10 is fixedly connected with the heat dissipation member, the mounting groove 106, the hollow portion 101 and the heat dissipation member of the bracket 10 jointly limit the base 20 to be relatively fixed and cannot fall off.

Alternatively, the main body 201 and the fixing portion of the base 20 may be integrally formed. Alternatively, the main body 201 and the fixing portion of the base 20 may be separate components, which are connected to form the base 20.

Alternatively, the fixing portion includes a first fixing block 202 and a second fixing block 203, the first fixing block 202 and the second fixing block 203 being provided on both sides of the width direction of the main body portion 201, respectively; wherein, in the case that the base 20 is connected with the bracket 10, the distance from the first fixing block 202 to the first edge 104 of the bracket 10 is smaller than the distance from the second fixing block 203 to the second edge 105 of the bracket 10.

The first fixing block 202 and the second fixing block 203 are provided on both sides of the main body 201, which contributes to an improvement in connection stability and firmness between the base 20 and the bracket 10 when the base 20 is connected to the bracket 10. Wherein the number and size of the mounting slots 106 of the bracket 10 are adapted to the number and size of the fixing blocks.

Here, "the distance from the first fixing block 202 to the first edge 104 of the bracket 10 is smaller than the distance from the second fixing block 203 to the second edge 105 of the bracket 10" is that the first edge 104 of the bracket 10 is disposed opposite to the second edge 105. It will be appreciated herein that the base 20 is disposed offset to one side of the support frame 10, i.e., the base 20 is disposed proximate the first edge 104 of the support frame 10 to correspond to the heat source area of the electronic control panel.

Optionally, the heat sink includes: the temperature equalizing plate 30 is detachably connected with the bracket 10 and is in heat conduction contact with the base 20 to transfer heat; the fin group 40 is in heat conduction connection with the temperature equalization plate 30 so as to radiate heat transferred by the temperature equalization plate 30; the fin group 40 includes a plurality of fins 401, which are disposed perpendicular to the temperature equalizing plate 30.

The interior of the temperature equalization plate 30 is filled with a heat transfer medium. The heat transfer medium may be a medium that can undergo changes in gaseous and liquid states, such as a refrigerant. Optionally, the heat transfer medium is filled into the temperature equalization plate 30 by vacuum pumping, pouring and the like. Alternatively, the temperature equalization plate 30 is integrally formed. The temperature equalization plate 30 may be made of aluminum or aluminum alloy.

The heat of the base 20 is transferred to the first plate surface of the temperature equalization plate 30, the liquid heat transfer working medium at the first plate surface side of the temperature equalization plate 30 is changed into a gas state after being heated and changed into a phase, and flows to the second plate surface side of the temperature equalization plate 30, and is transferred to the fin group 40 for heat dissipation and temperature reduction, the temperature is reduced, the heat transfer working medium at the second plate surface side of the temperature equalization plate 30 is changed into a liquid state, and flows back to the first plate surface side of the temperature equalization plate 30 for the next phase change heat dissipation cycle.

The fins of the fin group 40 are vertically arranged on the temperature equalizing plate 30, and the joints of the fins and the temperature equalizing plate are tightly attached. The fan of the outdoor unit of the air conditioner rotates to make the air flow through the surfaces of the temperature equalizing plate 30 and the fins to perform air cooling and heat dissipation, thereby improving the heat dissipation efficiency of the radiator.

The radiator provided by the embodiment can simultaneously perform phase-change heat radiation and air-cooling heat radiation, so that the heat radiation capacity of the electric control plate is improved, and the refrigerating capacity of the air conditioner under the high-temperature condition with higher outdoor environment temperature is further improved.

Optionally, the temperature equalization plate 30 includes a plurality of channels therein, and a heat transfer medium is poured into the plurality of channels to transfer heat through phase change of the heat transfer medium. Wherein the channel is arranged obliquely.

The inclined arrangement of the channels in this embodiment can be understood as not only the inclined arrangement in the plate 30 of the channels Yu Junwen, i.e. the extending direction of the channels intersects the temperature equalizing plate 30; it can be further understood that the extending direction of the channel is parallel to the temperature equalizing plate 30, and the temperature equalizing plate 30 is obliquely arranged in the use process, so that the channel is obliquely arranged, the heat transfer working medium is convenient to flow back, and the heat dissipation efficiency is accelerated.

The heat transfer working medium in the channels is heated for phase change, so that the effect of rapid heat transfer can be achieved, the temperature uniformity of the temperature uniformity plate 30 and the base 20 can be ensured, and the purpose of improving the heat dissipation efficiency of the radiator is achieved.

The channel includes opposite bottom and top ends. The liquid heat transfer working medium is collected at the bottom end of the channel, and is changed into the gaseous heat transfer working medium after being heated and changed into the gaseous heat transfer working medium, and the gaseous heat transfer working medium flows along the channel to the top end for radiating according to dynamics and brings heat away from the bottom end of the channel. The gaseous heat transfer working medium near the top end and located at the top end is changed into liquid heat transfer working medium after condensation, and the liquid heat transfer working medium can quickly flow back to the bottom end near the channel to perform the next thermal cycle through the inclined arrangement of the channel under the action of gravity.

In practical application, the base 20 is close to the bottom end of the channel and in heat conduction contact, so that heat exchange is carried out between the heat transfer working medium stored in the bottom end of the channel and the base 20, the liquid heat transfer working medium is heated, the temperature is increased and becomes gaseous heat transfer working medium, the gaseous heat transfer working medium moves upwards, namely moves to the top end of the channel to dissipate heat, and brings heat to the bottom end of the channel, so that the base 20 can quickly dissipate heat and cool, the base 20 can continuously receive heat from the electric control board, and the frequency conversion module is prevented from being burnt out due to overhigh temperature.

Alternatively, in the case of the vertical installation of the base 20, the channel is inclined in the bottom-up direction from the first fixing block 202 of the base 20 to the second fixing block 203 of the base 20.

The channel is inclined from the first fixed block 202 to the second fixed block 203 of the base 20 in a bottom-up direction, it being understood that the first fixed block 202 is disposed near the bottom end of the channel and the second fixed block 203 is disposed near the top end of the channel.

The base 20 is vertically installed, the temperature equalizing plate 30 is also vertically arranged, and the channels in the temperature equalizing plate 30 are obliquely arranged. Therefore, the liquid heat transfer working medium at the bottom end of the channel is convenient to move upwards after being heated and changed into the gaseous heat transfer working medium, and the liquid heat transfer working medium is also beneficial to the next thermal cycle after being condensed.

In addition, the first fixing block 202 of the base 20 is disposed near the heat source region of the electric control plate, and thus, the bottom ends of the channels of the temperature equalizing plate 30 are also disposed near the heat source region of the electric control plate. Thus, heat can be quickly taken away from the base 20 through the heat transfer medium in the channel, and the heat dissipation effect on the heat source area of the electric control plate is improved.

Optionally, a capillary structure is provided in the channel to extend the flow area of the heat transfer medium in the channel.

Through set up the capillary structure in the channel, can extend the flow area of the heat transfer working medium in the channel, for example, liquid heat transfer working medium passes through the capillary structure, can have as much time as possible and carry out the heat exchange with base 20, guarantee to take away more heat of base 20 as far as possible for base 20 can accept more heat that comes from the automatically controlled board and produce, thereby promotes the radiating effect to the automatically controlled board.

Similarly, the gaseous heat transfer working medium expands the heat dissipation area of the heat transfer working medium through the capillary structure, so that the heat exchange efficiency between the heat transfer working medium, the fins and the air flow can be accelerated, and the heat dissipation efficiency of the radiator is further improved.

Alternatively, the capillary structure may be a mesh, a fiber, a metal powder, or an rugged structure. For example, a plurality of micro fins are arranged on the inner side wall of the channel, and a fine hair groove is formed between two adjacent micro fins.

Alternatively, the bracket 10 is configured with a plurality of mounting holes 107, with portions of the mounting holes 107 having the same diameter.

The bracket 10 is fixedly connected with the radiating piece and the electric control box where the electric control plate is located through the mounting holes 107 with various different apertures by the fastening pieces, so that the connection firmness of the radiator is ensured, and the connection firmness between the radiator and the outdoor unit is also ensured.

Optionally, the fin surface of the fin 401 is configured with a raised structure to enlarge the contact area of the fin with the air flow, increase the disturbance to the air flow boundary layer, and enhance heat exchange.

Through the protruding structure of the fin surface structure of the fin, the fin surface area of the fin is increased, and the contact area with the fin can be enlarged under the condition that the air flow flows through the fin surface, so that the heat exchange area and the heat exchange efficiency of the air flow and the fin are enlarged, and the heat dissipation efficiency of the fin is improved.

Alternatively, the raised structures may be corrugated or punctiform raised.

Optionally, part or all of the area of the fin 401 is configured with a raised structure. Some or all of the fins of the fin group 40 are configured with a convex structure. In this way, the fin surface area of the fin is increased, and the contact area with the fin and the heat exchange area between the fin group 40 and the air flow can be enlarged under the condition that the air flow flows through the fin surface, so that the heat dissipation efficiency of the fin group 40 is improved.

As shown in fig. 1 to 7, an embodiment of the present disclosure provides an air conditioner outdoor unit, including the radiator provided in the above embodiment; wherein, the top of the base 20 is parallel to the top of the casing 50 of the outdoor unit of the air conditioner; and/or, the included angle between the channel of the heat sink and the bottom of the casing 50 of the outdoor unit of the air conditioner is 10-90 degrees. The heat sink includes a bracket 10, a base 20, and a heat sink. A bracket 10 configured with a hollowed-out portion 101; the base 20 is embedded in the hollowed-out part 101 and is detachably connected with the bracket 10; is configured to be in thermally conductive contact with a heat source region of an electronic control board to receive heat; the heat dissipation member is detachably connected with the bracket 10 and is in heat conduction connection with the base 20 so as to dissipate heat transferred by the base 20.

By adopting the air conditioner outdoor unit provided by the embodiment of the disclosure, the base 20 is fixed through the bracket 10 and plays a role of connecting the electric control plate and the radiating piece, so that the overall weight and cost of the radiator are reduced; the base 20 corresponds to the heat source area of the electric control plate and is arranged to receive heat of the electric control plate and then transmit the heat to the radiating piece, air flows through the surface of the radiating piece to perform air cooling and radiating, so that the radiating efficiency of the radiator is improved, the radiating effect of the radiator on the electric control plate is guaranteed, and the refrigerating effect of the air conditioner under the high-temperature working condition is further guaranteed.

In addition, the top of the base 20 is parallel to the top of the casing 50 of the outdoor unit; and/or, the included angle between the channel of the heat sink and the bottom of the casing 50 of the outdoor unit of the air conditioner is 10-90 degrees. In this way, it can be ensured that the channels of the temperature equalizing plate 30 are inclined in the use state after the temperature equalizing plate 30 is assembled with the base 20. The liquid heat transfer medium in the channel is accumulated in the bottom end of the channel near the first fixed block 202 of the base 20 under the action of gravity. The liquid heat transfer working medium is heated and phase-changed into the gaseous heat transfer working medium, the gaseous heat transfer working medium moves upwards, namely moves to the top end of the channel for heat dissipation, heat is carried away from the bottom end of the channel and the base 20, the gaseous heat transfer working medium is condensed and then becomes the liquid heat transfer working medium, and the liquid heat transfer working medium is obliquely arranged through the channel under the action of gravity and can quickly flow back to the bottom end of the channel for next heat cycle.

The angle between the channel and the bottom of the casing 50 of the outdoor unit is 10 ° to 90 °, which is understood to be 10 ° to 90 °. In the case of the air conditioner outdoor unit being installed, the placement surface of the air conditioner outdoor unit cannot be guaranteed to be a horizontal surface, and in this case, if the air conditioner outdoor unit is inclined due to uneven placement surface, the channel is inclined due to the inclination of the air conditioner outdoor unit in the case that the channel is horizontally arranged. If the heat source area of the electric control plate with high heat generation is positioned at the upper part of the inclined channel, the liquid heat transfer working medium cannot flow back to the upper part, so that the heat transfer efficiency of the heat transfer working medium and the frequency conversion module is reduced, and the heat dissipation efficiency of the frequency conversion module is further reduced. By adopting the air conditioner outdoor unit provided by the embodiment of the disclosure, whether the placement surface of the air conditioner outdoor unit is flat or not, the problems of low heat dissipation efficiency and poor heat dissipation effect caused by uneven placement surface of the air conditioner outdoor unit can be reduced through the inclined channel and the arrangement of the frequency conversion module and the position of the base 20; and the requirement of flatness of the placement surface of the existing air conditioner outdoor unit is overcome, and the application occasion of the air conditioner outdoor unit is enlarged. In practical application, under the condition that the included angle between the channel and the placing surface of the air conditioner outdoor unit is not zero, the heat transfer wages in the channel can be quickly refluxed by utilizing the action of gravity, so that the heat transfer and heat dissipation rates are accelerated. The "angle between the channel and the bottom of the casing 50 of the outdoor unit of the air conditioner" is understood as: the channel is inclined relative to the bottom of the casing 50 of the air conditioner outdoor unit, and the center line of the channel forms an included angle with the bottom of the casing 50 of the air conditioner outdoor unit along the length direction of the channel. In practical application, when the base 20 is vertically installed, the top of the base 20 is parallel to the top of the casing 50 of the outdoor unit of the air conditioner, and the channel is inclined, the inclination angle of the channel may be understood as the angle between the channel and the top of the casing 50 of the outdoor unit of the air conditioner, and may also be understood as the angle between the channel and the top surface of the base 20.

Alternatively, the fins in the fin group 40 of the radiator are perpendicular to the top of the outdoor unit of the air conditioner.

The air inlet air flow of the outdoor unit enters from the bottom of the gaps between the adjacent fins of the fin group 40, flows out from the top of the gaps after flowing through the surfaces of the fins, blows heat away from the fin group 40, and cools the fins in the fin group 40 by air cooling. The fins in the fin group 40 passing through the radiator are vertical to the top of the air conditioner outdoor unit, namely, the fins are vertical to the plane where the fan 60 at the top of the air conditioner outdoor unit is located, so that air flows through the fin group 40 of the radiator under the action of the fan 60 and fully contacts with the surface of each fin in the fin group 40, and the heat dissipation efficiency of the fin group 40 is improved.

Optionally, the fin group 40 of the heat sink is located directly below the fan 60. In this way, the air cooling heat dissipation effect of the air flow on the fin group 40 can be improved, the heat dissipation efficiency of the radiator is improved, and the heat dissipation effect of the radiator on the frequency conversion module is further improved.

Alternatively, as shown in fig. 6, the air conditioning outdoor unit is a multi-split air conditioning outdoor unit, and fig. 6 shows a partial structure in a rear view projection of the air conditioning outdoor unit. And the top of the air conditioner outdoor unit is provided with air and the air is circumferentially provided with air. Airflow entering from the periphery of the air conditioner outdoor unit flows through the frequency conversion module and the radiator connected with the frequency conversion module in a heat conduction way, and the airflow and the radiator are subjected to heat dissipation and temperature reduction.

The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may include structural and other modifications. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A heat sink, comprising:

the bracket is provided with a hollowed-out part;

the base is embedded in the hollowed-out part and is detachably connected with the bracket; is configured to be in thermally conductive contact with a heat source region of an electronic control board to receive heat;

and the heat dissipation piece is detachably connected with the bracket and is in heat conduction connection with the base so as to dissipate heat transferred by the base.

2. The heat sink of claim 1, wherein the bracket comprises:

the first side surface is connected with the electric control board;

the second side surface is arranged opposite to the first side surface and is connected with the heat dissipation piece;

the second side face is provided with a mounting groove at the edge of the hollowed-out part, and the mounting groove is used for accommodating and mounting the edge of the base.

3. The heat sink of claim 2, wherein the base comprises:

the main body part penetrates through the hollowed-out part;

and the fixing part is positioned at the side part of the main body part and is embedded in the mounting groove so that the base is connected with the bracket.

4. The heat sink of claim 3 wherein the heat sink is configured to be mounted to the heat sink,

the fixing part comprises a first fixing block and a second fixing block, and the first fixing block and the second fixing block are respectively arranged on two sides of the main body part;

wherein, in the case that the base is connected with the bracket, the distance from the first fixing block to the first edge of the bracket is smaller than the distance from the second fixing block to the second edge of the bracket.

5. The heat sink of claim 1, wherein the heat sink comprises:

the temperature equalizing plate is detachably connected with the bracket and is in heat conduction contact with the base so as to transfer heat;

the fin group is in heat conduction connection with the temperature equalization plate so as to radiate heat transferred by the temperature equalization plate;

the fin group comprises a plurality of fins, and the fins are perpendicular to the temperature equalizing plate.

6. The heat sink of claim 5 wherein the heat sink is configured to be mounted to the heat sink,

the inner part of the temperature equalization plate comprises a plurality of channels, and heat transfer working media are filled in the channels so as to transfer heat through phase change of the heat transfer working media;

wherein the channel is arranged obliquely.

7. The heat sink of claim 6 wherein the heat sink is configured to be mounted to the heat sink,

under the condition that the base is vertically installed, the channel is obliquely arranged from the first fixed block of the base to the second fixed block of the base along the direction from bottom to top.

8. The heat sink of claim 6 wherein the heat sink is configured to be mounted to the heat sink,

and a capillary structure is arranged in the channel to extend the flow area of the heat transfer working medium in the channel.

9. The heat sink according to any one of claims 1 to 8, wherein,

the bracket is made of plastic; and/or the number of the groups of groups,

the bracket is configured with a plurality of mounting holes, and the diameters of part of the mounting holes are the same.

10. An outdoor unit of an air conditioner, comprising the radiator according to any one of claims 1 to 9;

wherein, the top of the base is parallel to the top of the shell of the air conditioner outdoor unit; and/or the included angle between the channel of the heat dissipation piece and the bottom of the casing of the air conditioner outdoor unit is 10-90 degrees.