Combined radiator and electrical equipment

Abstract

The utility model provides a combined radiator and electrical equipment, and relates to the technical field of heat dissipation elements, the combined radiator comprises a plurality of first radiators, and the plurality of first radiators are in contact cooperation to form at least one heat conduction part; part of the heat conduction structure is arranged in the heat conduction part, and part of the heat conduction structure is located outside the heat conduction part; and the second radiator is connected with the heat conduction structure located outside the heat conduction part. According to the combined radiator, the multiple first radiators are matched to form a first heat transmission path, meanwhile, the heat conduction structure arranged in the heat conduction part formed by contact between the first radiators can absorb heat accumulated due to contact thermal resistance, and the heat conduction structure extends to the exterior of the heat conduction part to be connected with the second radiator; therefore, through the cooperation of the two heat transmission paths, the heat exchange amount of the combined radiator is increased, and the heat dissipation effect can be effectively improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of heat dissipation elements, and in particular to a combined heat sink and electrical equipment. Background Art

[0002] Functional components in electrical equipment will generate heat and heat up during operation, causing the entire electrical equipment to accumulate a large amount of heat during use, resulting in an increase in the ambient temperature of the electrical equipment. The use of functional components has certain requirements for the ambient temperature. Therefore, airflow driving components such as turbulent fans and a combination of radiators and airflow driving components are usually added to the electrical equipment to effectively adjust the ambient temperature by exchanging heat with the environment in which the functional components are located.

[0003] With the increase of functional components inside electrical equipment or the replacement of functional components, the heat dissipation demand of electrical equipment is constantly increasing. At present, multiple heat sinks are generally combined and installed on electrical equipment, such as a double-sided skived heat sink formed by two skived heat sinks. However, contact thermal resistance is easy to be generated in the combined heat sink, which will hinder the transfer of heat in the combined heat sink, reduce the thermal conductivity of the combined heat sink, and then lead to a decrease in the heat exchange of the combined heat sink, weaken the heat dissipation efficiency of the combined heat sink, and have an adverse effect on the working stability of the electrical equipment. Utility Model Content

[0004] The problem solved by the present disclosure is how to increase the heat exchange capacity of the combined radiator to improve the heat dissipation effect of the combined radiator.

[0005] In order to solve the above problems, the present disclosure provides a combined radiator and electrical equipment.

[0006] In a first aspect, the present disclosure provides a combined heat sink, comprising:

[0007] A first heat sink, wherein the first heat sink has a plurality of first heat sinks, and the plurality of first heat sinks are in contact with each other to form at least one heat conducting portion;

[0008] a heat-conducting structure, part of which is disposed inside the heat-conducting portion and part of which is disposed outside the heat-conducting portion;

[0009] A second heat sink is connected to the heat conducting structure outside the heat conducting portion.

[0010] Optionally, a plurality of the first heat sinks are arranged in sequence along a first direction, and the second heat sink is located on one side of the first heat sink along a second direction, the first direction is perpendicular to the second direction, and the second direction is a flow direction of the heat dissipation airflow.

[0011] Optionally, the heat-conducting structure includes a heat pipe, one end of which is embedded in the heat-conducting part, and the other end of which is connected to the second radiator. There are multiple heat pipes, and the multiple heat pipes are arranged at intervals along a third direction, and the third direction is perpendicular to the first direction and the second direction in pairs.

[0012] Optionally, the second heat sink includes a heat sink, and there are a plurality of the heat sinks, the plurality of the heat sinks are arranged at intervals along the first direction, and the heat conduction structure located outside the heat conduction portion passes through the heat sink.

[0013] Optionally, the second heat sink further includes a corrugated sheet, wherein the corrugated sheet is located between two adjacent heat sinks, and the heat conducting structure passes through the corrugated sheet.

[0014] Optionally, the heat-conducting structure located inside the heat-conducting portion is extended along the second direction, and the heat-conducting structure located outside the heat-conducting portion is bent and extended toward the first direction.

[0015] Optionally, the first heat sink includes heat dissipation teeth and a substrate, the heat dissipation teeth are installed on the substrate, and an embedding groove is provided on the end surface of the substrate facing away from the heat dissipation teeth. The substrate of one first heat sink is attached to the substrate of another first heat sink so that the two embedding grooves cooperate to form a mounting hole for embedding and installing the heat-conducting structure.

[0016] Optionally, the heat-conducting structure is a hollow structure, and a heat exchange medium is injected into the interior of the heat-conducting structure.

[0017] In a second aspect, the present disclosure provides an electrical device, comprising the combined heat sink as described above.

[0018] Optionally, the electrical equipment also includes a closed cabinet and a partition located in the closed cabinet, the combined radiator is located in the closed cabinet, the partition divides the closed cabinet into a first chamber and a second chamber, a portion of a first radiator of the combined radiator is located in the first chamber, and the other portion passes through the partition and is attached to the other first radiator in the second chamber to form a heat-conducting portion, and the heat-conducting structure of the combined radiator and the second radiator are located in the second chamber.

[0019] The combined heat sink of the present invention has the following beneficial effects: a plurality of first heat sinks are arranged to contact and cooperate with each other to form a heat conducting portion; after one first heat sink absorbs heat through heat exchange, heat exchange can be performed with another first heat sink through the heat conducting portion, and the heat is transferred to the other first heat sink through the heat conducting portion, so that heat is sequentially transferred from one position to another position through at least two first heat sinks, forming a first heat transfer path; on this basis, a heat conducting structure is arranged, part of the heat conducting structure is placed inside the heat conducting portion, and part of the heat conducting structure is also located outside the heat conducting portion, so that when heat is transferred from one first heat sink to another first heat sink through the heat conducting portion, part of the heat flowing through the heat conducting portion can be transferred to the heat conducting structure located outside the heat conducting portion through the heat conducting structure located inside the heat conducting portion. The heat accumulated at the heat conducting part due to the contact resistance at the heat conducting part is conducted to the outside of the heat conducting part, effectively weakening the limiting effect of the contact resistance at the heat conducting part on the heat exchange of the combined heat exchanger, thereby effectively improving the heat exchange of the combined radiator. At the same time, a second radiator connected to the heat conducting structure outside the heat conducting part is also provided. When the heat accumulated at the heat conducting part is transmitted to the outside of the heat conducting part through the heat conducting structure, heat exchange can be performed with the second radiator, further improving the heat exchange of the combined radiator. The second radiator can absorb the heat through heat exchange and then dissipate it, forming a second heat transfer path from the first radiator to the second radiator through the heat conducting part and the heat conducting structure, which can cooperate with the first heat transfer path to effectively improve the heat dissipation effect of the combined radiator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a combined heat sink in a closed cabinet in an embodiment of the present disclosure;

[0021] Figure 2 It is a structural explosion diagram of the combined heat sink in the embodiment of the present disclosure;

[0022] Figure 3 for Figure 2 An enlarged schematic diagram of A shown in FIG.

[0023] Figure 4 A partial structural schematic diagram of a combined heat sink from one perspective in an embodiment of the present disclosure;

[0024] Figure 5 It is a structural schematic diagram of the combined radiator in another perspective in the embodiment of the present disclosure;

[0025] Figure 6 It is a structural schematic diagram of the combined heat sink in another perspective in the embodiment of the present disclosure.

[0026] Description of reference numerals:

[0027] 1. First radiator; 11. Heat-conducting part; 12. Heat-dissipating teeth; 13. Base plate; 131. Embedding groove; 2. Heat-conducting structure; 21. Heat pipe; 3. Second radiator; 31. Heat sink; 32. Corrugated sheet; 4. Closed cabinet; 41. Partition; 42. First chamber; 43. Second chamber. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present disclosure more obvious and easy to understand, the specific embodiments of the present disclosure are described in detail below in conjunction with the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be interpreted as being limited to the embodiments described herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0029] The Z axis in the drawings represents the vertical direction, that is, the up and down position, and the positive direction of the Z axis represents the top, and the reverse direction of the Z axis represents the bottom; the X axis in the drawings represents the horizontal direction, and is designated as the front and back position, and the positive direction of the X axis represents the front side, and the reverse direction of the X axis represents the back side; the Y axis in the drawings represents the left and right position, and the positive direction of the Y axis represents the right side, and the reverse direction of the Y axis represents the left side. It should also be noted that the aforementioned Z axis, Y axis, and X axis are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0030] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to"; the term "based on" means "based at least in part on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in this disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0031] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0032] In the related art, the radiator in the electrical equipment first exchanges heat with the internal environment or functional elements of the electrical equipment, absorbs the heat generated in the internal environment or the functional elements, thereby reducing the internal environment temperature of the electrical equipment or the temperature of the functional elements. After absorbing the heat, the radiator exchanges heat with the external environment of the electrical equipment by contact or airflow driving parts driving the airflow to move through the radiator to the external environment, and then dissipates the heat to the external environment, forming a stable heat dissipation path. However, the combined radiator is composed of multiple radiators, and the heat of the internal environment needs to be transferred from one radiator to another radiator, and finally transferred to the external environment. This requires contact between the radiators, and the contact part will generate contact thermal resistance due to the existence of the gap. Although thermal conductive materials such as thermal conductive silicone grease are generally coated on the contact part to fill the gap to reduce the contact thermal resistance, the thermal conductivity between the contact parts of the radiators is still poor, so that when the heat flows between multiple radiators, the heat will be blocked in the contact part and accumulate in large quantities, so that the heat that can be transferred to the external environment through multiple radiators is reduced, resulting in poor heat dissipation effect of the combined radiator, which is not conducive to the stable operation of the electrical equipment.

[0033] In view of the problems existing in the above-mentioned related technologies, this embodiment provides a combined heat sink and electrical equipment.

[0034] like Figure 1 As shown, a combined heat sink provided by an embodiment of the present disclosure includes: a first heat sink 1, wherein the first heat sink 1 has a plurality of first heat sinks 1, and the plurality of first heat sinks 1 are in contact with each other to form at least one heat-conducting portion 11; a heat-conducting structure 2, wherein a portion of the heat-conducting structure 2 is disposed inside the heat-conducting portion 11, and a portion of the heat-conducting structure 2 is disposed outside the heat-conducting portion 11; and a second heat sink 3, wherein the second heat sink 3 is connected to the heat-conducting structure 2 disposed outside the heat-conducting portion 11.

[0035] Specifically, the first heat sink 1 can be arranged in an even number or in an odd number, and two or more first heat sinks 1 can be contacted and matched to form a heat conducting portion 11. For example, the first heat sink 1 is arranged in an even number, and two are grouped together, and the two first heat sinks 1 in each group are relatively fitted to form a heat conducting portion 11. After one first heat sink 1 completes heat exchange, the heat can be transferred to the other first heat sink 1 through heat exchange, and thermal conductive silicone grease is coated on the end surfaces of the two first heat sinks 1 that can be relatively fitted; a portion of the heat conducting structure 2 is placed inside the heat conducting portion 11, which means that the heat conducting structure 2 is taken as an integral structure, and a portion of it can be located The heat conducting structure 2 is located inside any of the first heat sinks 1, or between the relatively fitted end surfaces of the two first heat sinks 1, and part of the heat conducting structure 2 is located outside the heat conducting portion 11, which means that the heat conducting structure 2 is an integral structure, and in addition to a part being located inside the heat conducting portion 11, another part is located outside the heat conducting portion 11, that is, the two parts of the heat conducting structure 2 located inside and outside the heat conducting portion 11 belong to the same integral structure; the heat conducting structure 2 can be a hollow structure or a solid structure, and can be made of materials with good thermal conductivity such as copper or silver; the second heat sink 3 can be a heat dissipation element of the same type or different from the first heat sink 1.

[0036] In this embodiment, a plurality of first heat sinks 1 are provided to contact and cooperate to form at least one heat conducting portion 11. After one first heat sink 1 absorbs heat through heat exchange, heat exchange can be performed with another first heat sink 1 through the heat conducting portion 11, and the heat can be transferred to the other first heat sink 1 through the heat conducting portion 11, so that heat is transferred from one position to another position through at least two first heat sinks 1 in sequence, forming a first heat transfer path. On this basis, a heat conducting structure 2 is provided, and part of the heat conducting structure 2 is placed inside the heat conducting portion 11, while part of the heat conducting structure 2 is also located outside the heat conducting portion 11. In this way, when heat is transferred from one first heat sink 1 to another first heat sink 1 through the heat conducting portion 11, part of the heat flowing through the heat conducting portion 11 can be transferred to the heat conducting structure 2 located outside the heat conducting portion 11 through the heat conducting structure 2 located inside the heat conducting portion 11. At the same time, a second radiator 3 connected to the heat-conducting structure 2 outside the heat-conducting part 11 is provided. When the heat accumulated in the heat-conducting part 11 is transferred to the outside of the heat-conducting part 11 via the heat-conducting structure 2, the heat can be exchanged with the second radiator 3 to further increase the heat exchange of the combined radiator. The second radiator 3 can absorb the heat through heat exchange and then dissipate it, thereby forming a second heat transfer path from the first radiator 1 to the second radiator 3 via the heat-conducting part 11 and the heat-conducting structure 2, which can cooperate with the first heat transfer path to effectively improve the heat dissipation effect of the combined radiator.

[0037] like Figure 1 As shown, a plurality of first radiators 1 are sequentially arranged along a first direction, and a second radiator 3 is located on one side of the first radiator 1 along a second direction. The first direction is perpendicular to the second direction, and the second direction is the flow direction of the heat dissipation airflow.

[0038] Specifically, the first direction is the Z-axis direction, and the second direction is the Y-axis direction. The heat dissipation airflow can be generated by disturbing the air by airflow driving parts such as spoiler fans. The flow direction of the heat dissipation airflow referred to here refers to the overall flow direction of the heat dissipation airflow. During the flow of the heat dissipation airflow, the flow direction of the heat dissipation airflow passing through a certain position can change freely. For example, the direction of the heat dissipation airflow deviates from the second direction due to the collision with the second radiator 3, but the overall flow direction is along the second direction, that is, the generation position of the heat dissipation airflow points to the dissipation position of the heat dissipation airflow as the second direction. When the combined radiator is applied to electrical equipment, the heat dissipation airflow can flow from the functional element setting to the non-functional element setting, and can also flow from the inside of the electrical equipment where the functional element is installed to the outside of the electrical equipment.

[0039] In this optional embodiment, multiple first radiators 1 are arranged in sequence along the first direction, so that heat can be transmitted along the first direction, and the second direction perpendicular to the first direction is the flow direction of the heat dissipation airflow, so that the heat dissipation airflow can flow through each first radiator 1, and while the heat is transmitted along the multiple first radiators 1, it can also be dissipated through the first radiator 1, and the dissipated heat can be taken away by the heat dissipation airflow in time, avoiding heat accumulation around the first radiator 1, thereby facilitating continuous heat exchange and heat dissipation of the first radiator 1, and effectively improving the heat exchange and heat dissipation effects of the combined radiator; on this basis, the second radiator 3 is arranged on one side of the first radiator 1 along the second direction. In this way, when the heat dissipation airflow flows, it can flow through the first radiator 1 and the second radiator 3 at the same time, and the heat received by the second radiator 3 and transmitted and dissipated by the heat conductive structure 2 can be taken away by the heat dissipation airflow, facilitating continuous heat exchange and heat dissipation of the second radiator 3, and further improving the heat exchange and heat dissipation effects of the combined radiator.

[0040] like Figure 2 and Figures 4 to 6 As shown, the heat-conducting structure 2 includes a heat pipe 21, one end of the heat pipe 21 is embedded in the heat-conducting part 11, and the other end of the heat pipe 21 is connected to the second radiator 3. There are multiple heat pipes 21, and the multiple heat pipes 21 are arranged at intervals along a third direction, and the third direction is perpendicular to the first direction and the second direction in pairs.

[0041] Specifically, the third direction is the X-axis direction, the heat pipe 21 is a hollow structure, usually a copper structure, and a heat exchange medium such as water or ethylene glycol is injected into the interior of the heat pipe 21; when the area difference between the heat source and the contact surface is relatively large, the thermal resistance formed by the heat diffusion from the center of the heat source to the edge is called diffusion thermal resistance.

[0042] In this optional embodiment, a heat pipe 21 is provided as the heat conducting structure 2, and one end of the heat pipe 21 is embedded in the heat conducting part 11, so that the outer wall of the heat pipe 21 and the heat conducting part 11 are well fitted, avoiding the appearance of a gap between the outside of the heat pipe 21 and the heat conducting part 11, which increases the contact thermal resistance. At the same time, the thermal conductivity of the tube wall of the heat pipe 21 is relatively high. With this arrangement, the heat transmitted from the first radiator 1 to the heat conducting part 11 can be transmitted from the heat conducting part 11 to the heat pipe 21, and since the contact thermal resistance is small and the thermal conductivity of the heat pipe 21 is good, the heat exchange efficiency between the heat conducting part 11 and the heat pipe 21 can be relatively high, which effectively improves the heat exchange efficiency of the combined radiator and avoids the accumulation of heat at the heat conducting part 11. At the same time, the other end of the heat pipe 21 is located outside the heat conducting part 11 and is connected to the second radiator 3, so that the heat can be transmitted to the second radiator 3 through the heat pipe 21 for dissipation. The heat dissipation effect of the combined radiator is effectively improved; on this basis, a plurality of heat pipes 21 are arranged, and the plurality of heat pipes 21 are arranged at intervals along the third direction, and the third direction is perpendicular to the first direction and the second direction in pairs, so that the heat dissipation airflow flowing along the second direction can flow through all the heat pipes 21, and while the heat pipes 21 are transmitting heat, the heat dissipation airflow can also take away the heat dissipated by the heat pipes 21, effectively improving the heat exchange and heat dissipation effect of the combined radiator; in addition, the heat pipes 21 are hollow structures, so that a cavity can be formed inside the heat conducting part 11, which can effectively reduce the diffusion thermal resistance between the two first radiators 1, and after the heat at the heat conducting part 11 is transmitted to the inside of the heat pipe 21 through the pipe wall of the heat pipe 21, it can be absorbed by the heat exchange medium in the heat pipe 21, and the heat exchange medium transmits the heat to the second radiator 3 for heat exchange by flowing in the heat pipe 21, thereby ensuring stable heat dissipation of the second radiator 3.

[0043] like Figure 2 , Figure 3 and Figure 5 As shown, the second heat sink 3 includes a plurality of heat sinks 31 , and the plurality of heat sinks 31 are arranged at intervals along the first direction. The heat conducting structure 2 located outside the heat conducting portion 11 penetrates the heat sink 31 .

[0044] Specifically, the heat sink 31 is a sheet-like structure, and the largest end surface of the heat sink 31 is parallel to the XY plane.

[0045] In this optional embodiment, a heat sink 31 is provided as the second heat sink 3, wherein there are multiple heat sinks 31, and the heat dissipation area of ​​the second heat sink 3 available for heat dissipation can be effectively increased by increasing the number of heat sinks 31, and the multiple heat sinks 31 are arranged at intervals along the first direction, and the flow direction of the heat dissipation airflow is a second direction perpendicular to the first direction, so that the heat dissipation airflow can flow through all the heat sinks 31, and the heat dissipation airflow can take away the heat dissipated by the heat sink 31, thereby effectively improving the overall heat dissipation effect of the combined heat sink; on this basis, the heat-conducting structure 2 located outside the heat-conducting part 11 is arranged through the heat sink 31, so that the heat-conducting structure 2 can contact with multiple heat sinks 31, which is convenient for the heat-conducting structure 2 to fully exchange heat with the heat sink 31, so that the heat on the heat-conducting structure 2 is transferred to the heat sink 31 for dissipation, thereby further improving the overall heat exchange and heat dissipation effect of the combined heat sink.

[0046] like Figure 2 , Figure 3 and Figure 5 As shown, the second heat sink 3 further includes a corrugated sheet 32 ​​. The corrugated sheet 32 ​​is located between two adjacent heat sinks 31 , and the heat conducting structure 2 passes through the corrugated sheet 32 ​​.

[0047] Specifically, the corrugated sheet 32 ​​is a plate-like structure as a whole and is parallel to the XY plane. The plate surface of the corrugated sheet 32 ​​has a corrugated structure that undulates up and down along the Z-axis direction. The corrugated structure on the plate surface of the corrugated sheet 32 ​​extends along the X-axis direction. The upper end face and the lower end face of the corrugated sheet 32 ​​along the Z-axis direction are respectively attached to the two adjacent heat sinks 31.

[0048] In this optional embodiment, a heat sink 31 and a corrugated sheet 32 ​​are provided to form a second heat sink 3, wherein, when the maximum size is the same as the maximum size of the heat sink 31, the surface area of ​​the corrugated sheet 32 ​​is much larger than the surface area of ​​the heat sink 31, and the corrugated sheet 32 ​​is provided between two adjacent heat sinks 31, and the stable installation of the corrugated sheet 32 ​​is ensured by clamping the heat sink 31, and the heat conducting structure 2 runs through the corrugated sheet 32, so that the contact area between the heat conducting structure 2 and the second heat sink 3 is increased, and the heat exchange efficiency between the heat conducting structure 2 and the second heat sink 3 is effectively improved. At the same time, the total area of ​​the second heat sink 3 to achieve heat dissipation is greatly increased due to the provision of the corrugated sheet 32, and then the heat dissipation effect of the second heat sink 3 is effectively improved by the provision of the corrugated sheet 32, thereby effectively improving the heat exchange effect and heat dissipation effect of the combined heat sink.

[0049] like Figure 1 As shown, the heat-conducting structure 2 located inside the heat-conducting portion 11 is extended along the second direction, and the heat-conducting structure 2 located outside the heat-conducting portion 11 is bent and extended toward the first direction.

[0050] Specifically, the heat-conducting structure 2 has a first section extending along the second direction and a second section extending along the first direction. The first section and the second section are perpendicular to each other and the ends are connected to form an L-shaped structure. It can also be a T-shaped structure formed by connecting the middle of the first section to the end of the second section or connecting the middle of the second section to the end of the first section. It is only necessary to ensure that the first section is placed inside the heat-conducting part 11 and extends to the outside, and the second section is connected to the second heat sink 3.

[0051] In this optional embodiment, a portion of the heat-conducting structure 2 is extended along the second direction, so that the heat-conducting structure 2 placed inside the heat-conducting part 11 can extend out of the heat-conducting part 11, and then while realizing heat exchange between the heat-conducting part 11 and the heat-conducting structure 2, the heat absorbed by the heat exchange with the heat-conducting part 11 is transferred to the outside of the heat-conducting part 11, and the heat-conducting structure 2 extending out of the heat-conducting part 11 can be bent and extended toward the first direction, and the second heat sink 3 is located on one side of the first heat sink 1 along the second direction, and the heat-conducting structure 2 is located between the two first heat sinks 1 at this time. The setting of the heat-conducting structure 2 bending and extending toward the first direction can facilitate the connection between the heat-conducting structure 2 outside the heat-conducting part 11 and the second heat sink 3, thereby ensuring the structural stability of the entire combined heat sink, and realizing heat exchange and heat dissipation through two heat transfer paths.

[0052] like Figure 2 and Figures 4 to 6 As shown, the first heat sink 1 includes a heat dissipation tooth 12 and a base plate 13, the heat dissipation tooth 12 is installed on the base plate 13, and an embedding groove 131 is provided on the end surface of the base plate 13 away from the heat dissipation tooth 12. The base plate 13 of one first heat sink 1 is fitted with the base plate 13 of another first heat sink 1 so that the two embedding grooves 131 cooperate to form a mounting hole for embedding and installing the heat-conducting structure 2.

[0053] Specifically, the heat dissipation teeth 12 are tooth-shaped structures formed by directly cutting and processing the plate. For example, the first heat sink 1 is a skived-tooth heat sink, and two skived-tooth heat sinks are relatively fitted to form a double-sided skived-tooth heat sink; the embedded groove 131 is a groove body extending along the first direction, and at least one end of the embedded groove 131 along the first direction passes through the substrate 13; the edge of the substrate 13 is provided with a plurality of connecting holes at intervals along the circumferential direction. When the two substrates 13 are fitted correspondingly, the connecting holes on the two substrates 13 correspond coaxially, and the connection of the two substrates 13 can be achieved by a connecting piece that sequentially passes through the corresponding two connecting holes along the axial direction.

[0054] In this optional embodiment, a heat dissipation tooth 12 and a substrate 13 are provided to form a first heat sink 1, wherein the heat dissipation tooth 12 is mounted on the substrate 13, and the mating contact of the two first heat sinks 1 can be achieved by bonding the substrate 13 of one first heat sink 1 with the substrate 13 of another first heat sink 1, and an embedding groove 131 is provided on the end surface of the substrate 13 away from the heat dissipation tooth 12, and when the two substrates 13 are relatively bonded, the two embedding grooves 131 can form a mounting hole for embedding and installing the heat-conducting structure 2, at this time, the heat-conducting structure 2 can be embedded in an embedding groove 131 between the two substrates 13 being relatively bonded, and then the two substrates 13 can be relatively bonded, and of course, the heat-conducting structure 2 can also be embedded in the formed mounting hole after the two substrates 13 are relatively bonded.

[0055] It should be noted that, in other embodiments of the present disclosure, the mounting hole for embedding and mounting the heat-conducting structure 2 may be placed on any substrate 13 .

[0056] Optionally, the heat-conducting structure 2 is a hollow structure, and a heat exchange medium is injected into the heat-conducting structure 2 .

[0057] Specifically, the heat-conducting structure 2 may be a hollow plate-like structure, a tubular structure or a block-like structure, and the heat exchange medium may be water or ethylene glycol, etc.

[0058] In this optional embodiment, the heat-conducting structure 2 is set as a hollow structure, so that the heat exchange medium can be injected into the interior of the heat-conducting structure 2. After the heat-conducting structure 2 located in the heat-conducting part 11 exchanges heat with the heat-conducting part 11, the heat can be transferred to the interior of the heat-conducting structure 2 and absorbed by the heat exchange medium. The heat exchange medium can flow in the heat-conducting structure 2 to realize heat transfer, and can also realize heat transfer through heat exchange between two parts with different temperatures of the heat exchange medium. Finally, the heat is stably transferred from the heat-conducting part 11 to the second radiator 3 through the heat-conducting structure 2, thereby effectively improving the heat dissipation effect of the combined radiator.

[0059] An electrical device provided by an embodiment of the present disclosure includes the combined heat sink as described above.

[0060] The beneficial effects of the electrical device of this embodiment relative to the prior art are the same as those of the above-mentioned combined radiator, which will not be described in detail here.

[0061] like Figure 1 As shown, the electrical equipment also includes a closed cabinet 4 and a partition 41 located in the closed cabinet 4. The combined radiator is located in the closed cabinet 4. The partition 41 divides the closed cabinet 4 into a first chamber 42 and a second chamber 43. A portion of a first radiator 1 of the combined radiator is located in the first chamber 42, and another portion passes through the partition 41 and is attached to another first radiator 1 in the second chamber 43 to form a heat conducting portion 11. The heat conducting structure 2 and the second radiator 3 of the combined radiator are located in the second chamber 43.

[0062] Specifically, in the use of electrical equipment such as charging cabinets, the electrical equipment needs to be placed outdoors for use. Considering that the harsh outdoor environment may have an adverse effect on the functional components of the electrical equipment, the electrical equipment is usually equipped with a closed cabinet 4; a sealing ring and other structures are added between the partition 41 of the closed cabinet 4 and the first radiator 1 that passes through the partition for sealing.

[0063] In this optional embodiment, in order to facilitate the installation of the combined radiator in the closed cabinet 4, the closed cabinet 4 can be divided into a first chamber 42 and a second chamber 43 inside the closed cabinet 4, wherein a part of a first radiator 1 of the combined radiator is located in the first chamber 42, and the other part passes through the partition 41 and fits with another first radiator 1 located in the second chamber 43 to form a heat conducting part 11, and the second radiator 3 and the heat conducting structure 2 are located in the second chamber 43, so that the installation of the combined radiator in the closed cabinet 4 only requires sealing between the partition 41 and the first radiator 1 passing through the partition. This not only ensures the sealing effect inside the closed cabinet 4 without adding sealing elements, but also improves the existing closed cabinet 4 by adding the second radiator 3 inside it, thereby improving the heat exchange and heat dissipation effects of the combined radiator.

[0064] Although the disclosure is disclosed as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the disclosure.

Claims

1. A combined radiator, characterized in that: include: A first heat sink (1), the first heat sink (1) comprising a plurality of first heat sinks (1), the plurality of first heat sinks (1) being in contact with each other to form at least one heat conducting portion (11); A heat-conducting structure (2), part of which is placed inside the heat-conducting portion (11), and part of which is located outside the heat-conducting portion (11); A second heat sink (3), the second heat sink (3) is connected to the heat conducting structure (2) located outside the heat conducting part (11).

2. The combined radiator according to claim 1, characterized in that: A plurality of the first heat sinks (1) are arranged in sequence along a first direction, and the second heat sink (3) is located on one side of the first heat sink (1) along a second direction, the first direction is perpendicular to the second direction, and the second direction is the flow direction of the heat dissipation airflow.

3. The combined radiator according to claim 2, characterized in that: The heat-conducting structure (2) comprises a heat pipe (21), one end of the heat pipe (21) is embedded in the heat-conducting portion (11), and the other end of the heat pipe (21) is connected to the second heat sink (3). There are a plurality of heat pipes (21), and the plurality of heat pipes (21) are arranged at intervals along a third direction, and the third direction is perpendicular to the first direction and the second direction in pairs.

4. The combined radiator according to claim 2, characterized in that: The second heat sink (3) comprises a heat sink (31), the heat sink (31) being multiple, the multiple heat sinks (31) being arranged at intervals along the first direction, and the heat conduction structure (2) located outside the heat conduction portion (11) passing through the heat sink (31).

5. The combined radiator according to claim 4, characterized in that: The second heat sink (3) further comprises a corrugated sheet (32), wherein the corrugated sheet (32) is located between two adjacent heat sinks (31), and the heat conducting structure (2) passes through the corrugated sheet (32).

6. The combined radiator according to any one of claims 2 to 5, characterized in that: The heat-conducting structure (2) located inside the heat-conducting portion (11) is extended along the second direction, and the heat-conducting structure (2) located outside the heat-conducting portion (11) is bent and extended toward the first direction.

7. The combined radiator according to claim 1, characterized in that: The first heat sink (1) comprises a heat sink tooth (12) and a base plate (13); the heat sink tooth (12) is mounted on the base plate (13); an embedding groove (131) is provided on the end surface of the base plate (13) facing away from the heat sink tooth (12); the base plate (13) of one first heat sink (1) is fitted with the base plate (13) of another first heat sink (1) so that the two embedding grooves (131) cooperate to form a mounting hole for embedding and mounting the heat conducting structure (2).

8. The combined radiator according to claim 1, characterized in that: The heat-conducting structure (2) is a hollow structure, and a heat exchange medium is injected into the interior of the heat-conducting structure (2).

9. An electrical device, characterized in that: Comprising the combined radiator according to any one of claims 1 to 8.

10. The electrical device according to claim 9, characterized in that The invention also comprises a sealed cabinet (4) and a partition (41) located in the sealed cabinet (4); the combined radiator is located in the sealed cabinet (4); the partition (41) divides the sealed cabinet (4) into a first chamber (42) and a second chamber (43); a portion of a first radiator (1) of the combined radiator is located in the first chamber (42); another portion passes through the partition (41) and is attached to another first radiator (1) in the second chamber (43) to form a heat conduction portion (11); and the heat conduction structure (2) and the second radiator (3) of the combined radiator are located in the second chamber (43).

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