CN219154263U - Heat exchange mechanism - Google Patents

Abstract

The embodiment of the application relates to the technical field of charging piles, in particular to a heat exchange mechanism, which comprises a shell, a heat dissipation piece and a cover plate. The shell is provided with a containing cavity, a first diversion trench and a second diversion trench which are communicated are arranged in the containing cavity, and the first diversion trench and the second diversion trench are respectively communicated with the external environment; and a horizontal flow passage is further arranged in the first diversion trench and/or the second diversion trench. The heat dissipation piece is arranged on the first diversion trench and/or the second diversion trench. The cover plate is connected with the accommodating cavity, the cover plate is matched with the first diversion trench to form a first heat dissipation area sealed and isolated from the accommodating cavity, and the cover plate is matched with the second diversion trench to form a second heat dissipation area sealed and isolated from the accommodating cavity. Through the design, the module needing heat dissipation is arranged in the first heat dissipation area and/or the second heat dissipation area and is sealed and isolated from the accommodating cavity, so that impurities such as dust in the external environment are prevented from entering the accommodating cavity, and the heat dissipation efficiency is improved.

Description

Heat exchange mechanism

Technical Field

The embodiment of the application relates to the technical field of charging piles, in particular to a heat exchange mechanism.

Background

In daily life of people, electric energy is used as a main energy source, and is commonly found in various equipment facilities. In the present day, more vehicles use electric energy as an energy source for driving a motor of the vehicle, and the problem that the vehicle driven by the electric energy has to face is a cruising problem.

In the past, when a vehicle driven by electric energy charges a battery, a charging pile is mostly used, and two common charging modes are mainly adopted, namely, charging in a common time period is adopted, and quick charging is adopted. However, either of these two methods suffers from the problem that the charging pile heats up substantially during operation.

The inventors have found in implementing embodiments of the present application that at present: the commonly used charging piles internally comprise modules with different functions, and the heat generating efficiency of the modules is different in the working process. And in the current charging pile, the charging pile comprises a charging pile main body, a power transmission module and an air cooling and heat dissipation module. The power transmission module is arranged in the charging pile body, the air cooling heat dissipation module is in contact with the power transmission module, and the other part of the air cooling heat dissipation module is communicated with the external environment, so that air is fully in contact with the air cooling heat dissipation module to dissipate heat of the power transmission module. However, this approach has the following problems: 1. the radiating effect is poor, is easily influenced by surrounding environment, and is easily caused by dust accumulation after the air-cooled radiating module works for a long time. 2. The air-cooled heat dissipation module has high working noise and is communicated with the external environment, so that dust easily flows into the charging pile due to poor sealing effect, and the working efficiency of the power transmission module is reduced.

Disclosure of Invention

The embodiment of the application provides a heat exchange mechanism to improve the current situation that air-cooled heat dissipation module in the current charging pile is poor in heat dissipation effect, easy to accumulate dust, large in working noise and poor in sealing effect.

In order to solve the technical problems, one technical scheme adopted by the application is as follows: a heat exchange mechanism is provided. The heat exchange mechanism comprises a shell, a heat dissipation piece and a cover plate. The shell is provided with a containing cavity, a first diversion trench and a second diversion trench which are communicated are arranged in the containing cavity, and the first diversion trench and the second diversion trench are respectively communicated with the external environment; and a horizontal flow passage is further arranged in the first diversion trench and/or the second diversion trench. The heat dissipation piece is installed in the first guiding gutter and/or the second guiding gutter. The cover plate is connected with the accommodating cavity, the cover plate is matched with the first diversion trench to form a first heat dissipation area sealed and isolated from the accommodating cavity, and the cover plate is matched with the second diversion trench to form a second heat dissipation area sealed and isolated from the accommodating cavity.

Optionally, the heat dissipation piece includes installation department, main part, first fin and second fin, installation department install in the tank bottom of first guiding gutter, and right the tank bottom of first guiding gutter seals, first fin with the second fin is all through main part with installation department fixed connection, and the extending direction of first fin with the extending direction of second fin is different.

Optionally, the first diversion trench comprises a first accommodation trench, a first communication trench and a second accommodation trench, one end of the first accommodation trench is communicated with the external environment, and the other end of the first accommodation trench is communicated with the second accommodation trench through the first communication trench and is communicated with the second diversion trench through the second accommodation trench; the first accommodating groove and the second accommodating groove are internally provided with the heat dissipation piece.

Optionally, the notch of the first accommodating groove and the notch of the second accommodating groove are respectively provided with a clamping groove, the cover plate is provided with a protrusion, the protrusion extends into the clamping groove and abuts against one end of the heat dissipation piece, which is far away from the mounting part, and the heat conduction medium circulates in the gaps among the fins.

Optionally, the second diversion trench includes first water conservancy diversion passageway, third intercommunication groove and second water conservancy diversion passageway, the one end of first water conservancy diversion passageway through the second intercommunication groove with the second accepting groove intercommunication, the other end of first water conservancy diversion passageway through the third intercommunication groove with the one end intercommunication of second water conservancy diversion passageway, the other end and the external environment intercommunication of second water conservancy diversion passageway.

Optionally, at least one horizontal flow channel is arranged between the first flow guiding channel and the second flow guiding channel, and two ends of the horizontal flow channel are respectively communicated with the first flow guiding channel and the second flow guiding channel.

Optionally, the horizontal flow channel is curved to increase its flow area.

Optionally, the horizontal flow channel is provided with a backflow preventing protrusion, and the backflow preventing protrusion is located at a communication position of the horizontal flow channel and the second diversion channel.

Optionally, the width of the first diversion channel is smaller than the width of the second diversion channel.

Optionally, the shell is provided with at least one heat exchange protrusion, the heat exchange protrusion is arranged in the second diversion channel, and the extending direction of the heat exchange protrusion is the same as the extending direction of the second diversion channel.

The beneficial effects of the embodiment of the application are that: unlike the prior art, embodiments of the present application provide a heat exchange mechanism that includes a housing, a heat sink, and a cover plate. The shell is provided with a containing cavity, a first diversion trench and a second diversion trench which are communicated are arranged in the containing cavity, and the first diversion trench and the second diversion trench are respectively communicated with the external environment; and a horizontal flow passage is further arranged in the first diversion trench and/or the second diversion trench. The heat dissipation piece is installed in the first guiding gutter and/or the second guiding gutter. The cover plate is connected with the accommodating cavity, the cover plate is matched with the first diversion trench to form a first heat dissipation area sealed and isolated from the accommodating cavity, and the cover plate is matched with the second diversion trench to form a second heat dissipation area sealed and isolated from the accommodating cavity. Through the design, the module needing heat dissipation is mounted in the first heat dissipation area and/or the second heat dissipation area, and the first heat dissipation area and/or the second heat dissipation area are/is sealed and isolated from the accommodating cavity, so that impurities such as dust in the external environment are prevented from flowing into the accommodating cavity, and heat dissipation efficiency is improved.

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 the figures of the drawings are not to scale, unless expressly stated otherwise.

FIG. 1 is a schematic diagram of a powered device according to one embodiment of the present application;

FIG. 2 is a perspective view of a heat exchange mechanism provided in one embodiment of the present application;

FIG. 3 is a cross-sectional view of the A-plane of FIG. 2 provided in one embodiment of the present application;

FIG. 4 is an exploded view of a heat exchange mechanism provided in one embodiment of the present application;

FIG. 5 is an enlarged view of portion B of FIG. 4 provided in one embodiment of the present application;

FIG. 6 is a schematic diagram of a heat exchange mechanism provided in one embodiment of the present application;

FIG. 7 is an enlarged view of portion C of FIG. 6 provided in one embodiment of the present application;

fig. 8 is a schematic view of a cover plate according to an embodiment of the present application.

The reference numerals are as follows:

first oneDirection	F1	Second communicating groove	16
				Second direction	F2	Heat exchange protrusion	17
Electric equipment	1	Second inclined plane	18
				Charging pile	1000	Through hole	19
Heat exchange mechanism	100	Heat dissipation piece	30
				Outer casing	10	Mounting part	31
Accommodating cavity	11	Main body part	32
				First diversion trench	12	First fin	33
First accommodating groove	121	Second fin	34
				First communicating groove	122	Third fin	35
Second accommodating groove	123	Cover plate	40
				Second diversion trench	13	First heat dissipation region	41
Third communicating groove	131	Second heat dissipation region	42
				First diversion channel	132	Protrusions	43
Second diversion channel	133	First inclined plane	431
				Horizontal runner	134	Third region	44
Anti-backflow bump	1341	Mounting platform	45
				Clamping groove	14	Heat dissipation channel	46

Detailed Description

In order to facilitate an understanding of the present application, the present application will be described in more detail below with reference to the accompanying drawings and specific examples. It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application in this description is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, a schematic diagram of a powered device 1 according to one embodiment of the present application is shown. The electric equipment 1 comprises a charging pile 1000, the charging pile 1000 comprises a charging module and a heat exchange mechanism 100, the charging module and the heat exchange mechanism 100 are all installed in the charging pile 1000, the heat exchange mechanism 100 is installed on the charging module, and the heat exchange mechanism 100 is used for radiating heat for the charging module. Accordingly, the electric device 1 in the embodiment of the present application includes, but is not limited to, the charging pile 1000, which may be other electric devices, and the structure of the heat exchange mechanism 100 will be further described below.

For the foregoing heat exchange mechanism 100, please refer to fig. 2 to 4, which respectively show a perspective view of the heat exchange mechanism 100 provided in one embodiment of the present application, an a-plane cross-sectional view of fig. 2 provided in one embodiment of the present application, and an exploded view of the heat exchange mechanism 100 provided in one embodiment of the present application, and in combination with other drawings. The heat exchange mechanism 100 includes a housing 10, a heat transfer medium (not shown), a heat sink 30, and a cover plate 40. The housing 10 is provided with a housing cavity 11, a first diversion trench 12 and a second diversion trench 13 which are communicated are arranged in the housing cavity 11, the first diversion trench 12 and the second diversion trench 13 are respectively communicated with the external environment, and the first diversion trench 12 and/or the second diversion trench 13 are also provided with a horizontal runner 134, and optionally, the horizontal runner 134 is bent to increase the flow area. It should be noted that, the horizontal flow channel 134 described in the embodiment of the present application refers to a fluid flow channel on a plane perpendicular to the thickness direction of the heat exchange mechanism 100 and flowing along the plane, and the horizontal flow channel 134 is used for flowing a heat conducting medium. The heat transfer medium flows in the first and second diversion trenches 12 and 13. The heat dissipation element 30 is installed in the first diversion trench 12 and/or the second diversion trench 13, and the heat dissipation element 30 is used for improving the heat dissipation efficiency in the first diversion trench 12 and/or the second diversion trench 13. The cover plate 40 is connected with the accommodating cavity 11, the cover plate 40 and the first diversion trench 12 are matched to form a first heat dissipation area 41 sealed and isolated from the accommodating cavity 11, and the cover plate 40 and the second diversion trench 13 are matched to form a second heat dissipation area 42 sealed and isolated from the accommodating cavity 11.

It can be understood that the heat dissipation member 30 is disposed in the first diversion trench 12 to improve the heat dissipation efficiency of the first diversion trench 12, so that the heat dissipation efficiency of the first heat dissipation area 41 is greater than that of the second heat dissipation area 42, and therefore, the electronic components with larger heat generation efficiency in the charging pile 1000 can be mounted at the first heat dissipation area 41, and the electronic components with smaller heat generation efficiency can be mounted at the second heat dissipation area 42; alternatively, the heat dissipation member 30 is disposed in the second diversion trench 13 to improve the heat dissipation efficiency of the second diversion trench 13, so that the heat dissipation efficiency of the second heat dissipation area 42 is greater than that of the first heat dissipation area 41, so that the electronic component with greater heat generation efficiency in the charging pile 1000 can be mounted at the second heat dissipation area 42, and the electronic component with smaller heat generation efficiency can be mounted at the first heat dissipation area 41; or, the heat dissipation members 30 are disposed in the first and second diversion trenches 12 and 13, so as to improve the overall heat dissipation efficiency of the heat exchange mechanism 100, and adapt to the charging pile 1000 with various electronic elements and modules. Optionally, the heat conducting medium includes water, a cooling liquid, and the like. It is understood that the first and second diversion trenches 12 and 13 and the cover 40 are disposed in the housing 10, that is, the first and second heat dissipation areas 41 and 42 are exposed in the housing cavity 11, and the surfaces of each of them exposed in the housing cavity 11 can be used for mounting electronic components or modules for heat dissipation.

It should be noted that the cover plate 40 is connected to the housing 10 by friction stir welding. Friction stir welding refers to the process of locally melting a welded material by heat generated by friction between a welding tool rotating at a high speed and the cover plate 40 and the shell 10, wherein when the welding tool moves forward along a welding interface, the plasticized cover plate 40 and the shell 10 flow from the front part to the rear part of the welding tool under the action of the rotating friction force of the welding tool, and a compact solid-phase welding seam is formed under the extrusion of the welding tool. The welding mode has the advantages that: 1. the microstructure of the weld joint heat affected zone has little change, the residual stress is relatively low, and the welded cover plate 40 and the shell 10 are not easy to deform. 2. The welding of longer welds, large cross sections, and different locations can be accomplished at one time to accommodate the long welds of the cover 40 and the housing 10 in the embodiments of the present application. 3. The operation process of friction stir welding is convenient to realize mechanization and automation, and the friction stir welding equipment is simple, low in energy consumption and high in efficiency, thereby facilitating batch production and improving production efficiency. 4. Welding media such as welding wires and the like are not needed, shielding gas is not needed, and the safety and the cost are low. 5. The welding process is safe, pollution-free, smoke-free, radiation-free and the like.

For the heat sink 30, please refer to fig. 5, which shows an enlarged view of the portion B of fig. 4 according to one embodiment of the present application, and the enlarged view is combined with other drawings. The heat sink 30 includes a mounting portion 31, a main body portion 32, a first fin 33, and a second fin 34. The mounting portion 31 is mounted to the bottom of the first diversion trench 12 and seals the bottom of the first diversion trench 13. Alternatively, the mounting portion 31 is in sealing connection with the bottom of the first diversion trench 12 by adopting a friction stir welding process. The first fin and the second fin are each fixedly connected to the mounting portion 31 through the main body portion 32, and the extending direction of the first fin 34 and the extending direction of the second fin 35 are different. Specifically, the main body portion 32 is disposed perpendicular to the mounting portion 31, the first fin 33 extends from the main body portion 32, the first fin 33 is perpendicular to the main body portion 32, the second fin 34 extends from the main body portion 32, and the second fin 34 is perpendicular to the first fin 33. It should be noted that, the mounting portion 31, the main portion 32, the first fins 33 and the second fins 34 are all in a strip shape, and the mounting portion 31 is used for mounting the heat dissipation element 30 in the first diversion trench 12, the main portion 32 is vertically disposed on the mounting portion 31, and the main portion 32 is disposed in the middle of the mounting portion 31, so that the first fins 33 can be symmetrically disposed on two sides of the main portion 32, and the second fins 34 are perpendicular to the first fins 33, and it can be understood that the second fins 34 in the present application are disposed on one side of the first fins 33 away from the mounting portion 31.

Further, the heat dissipation element 30 further includes a third fin 35, the third fin 35 is disposed on the main body portion 32, the third fin 35 is perpendicular to the main body portion 32, the third fin 35 is disposed parallel to the first fin 33, and the width of the third fin 35 is smaller than the width of the first fin 33. It will be appreciated that the third fin 35 is disposed between the mounting portion 31 and the first fin 33, and that the width referred to herein is the length of the first fin 33, the second fin 34, and the third fin 35 protruding from the main body portion 32. Through the design, the heat dissipation element 30 is forked in a tree shape, the heat dissipation element 30 can be fully contacted with the heat dissipation element 30, and the contact area between the heat dissipation element 30 and the heat dissipation element 30 is increased by the first fins 33, the second fins 34 and the third fins 35, so that heat exchange is facilitated. It should be noted that, the width and thickness of the first fin 33 and the third fin 35 are smaller than those of the mounting portion 31, and the portion of the main body portion 32 near the mounting portion 31 is wider than the portion of the main body portion far from the mounting portion 31, but since the width of the third fin 35 is smaller than that of the first fin 33, the third fin 35 in the embodiment of the present application is flush with the first fin 33, and in other embodiments, the relationship between the width of the third fin 35 and the width of the first fin 33 may be gradually increased or gradually decreased. It should be noted that, the heat dissipating member 30 is manufactured by using an aluminum extrusion process, and the manufacturing process can manufacture the heat dissipating member 30 having the first fin 33, the second fin 34 and the third fin 35 with a high density, wherein the high density refers to that the first fin 33, the second fin 34 and the third fin 35 have a larger number in a certain space, so that the heat exchanging area is increased in a limited space to improve the heat dissipating efficiency.

In the embodiment of the present application, please refer to fig. 3, 4 and 6, wherein fig. 6 shows a schematic diagram of a heat exchange mechanism 100 according to one embodiment of the present application, and other figures are combined. The first diversion trench 12 comprises a first accommodation trench 121, a first communication trench 122 and a second accommodation trench 123, one end of the first accommodation trench 121 is communicated with the external environment, and the other end of the first accommodation trench 121 is communicated with the second accommodation trench 123 through the first communication trench 122 and is communicated with the second diversion trench 13 through the second accommodation trench 123; the heat sink 30 is disposed in each of the first and second receiving grooves 121 and 123. The other end of the first accommodating groove 121 extends along a first direction F1, the first communicating groove 122 extends along a second direction F2, two ends of the first communicating groove 122 are respectively communicated with the first accommodating groove 121 and the second accommodating groove 123, the second accommodating groove 123 extends along the first direction F1, and two ends of the second accommodating groove 123 are respectively communicated with the first communicating groove 122 and the second diversion groove 13; the first direction F1 is perpendicular to the second direction F2. It should be noted that, the bottoms and walls of the first and second receiving grooves 121 and 123 are engaged with the heat dissipation member 30, that is, the first and third fins 33 and 35 are recessed relative to the mounting portion 31, and the walls of the first and second receiving grooves 121 and 123 have protrusions, so that the first and second receiving grooves 121 and 123 can be engaged with the heat dissipation member 30. It should be noted that, the width of the first communicating groove 122 is smaller than the widths of the first receiving groove 121 and the second receiving groove 123, so that the flow rate of the heat-conducting medium in the communicating groove 122 is increased by the pressurizing form due to the structural change, and the heat transfer is facilitated.

Further, the notch of the first accommodating groove 121 and the notch of the second accommodating groove 123 are respectively provided with a clamping groove 14, the cover plate 40 is provided with a protrusion 43, the clamping grooves 14 are arranged around the notch of the first guiding groove 12, the protrusion 43 extends into the clamping grooves 14 and abuts against one end of the heat dissipation member away from the mounting portion 31, and the heat conduction medium circulates in the gaps between the fins. Note that the fins described herein refer to at least one of the first fin 33, the second fin 34, and the third fin 35 described above. Further, the protrusion 43 is disposed at the first heat dissipation area 41, the cover 40 is connected to the clamping groove 14, the protrusion 43 extends toward the first diversion trench 12, and a side of the protrusion 43 away from the cover 40 abuts against the heat dissipation element 30. Specifically, the side of the protrusion 43 away from the cover plate 40 abuts against the side of the second fin 34 away from the mounting portion 31, so that the heat-conducting medium must pass through the heat sink 30 to improve the heat dissipation efficiency.

Further, the protrusion 43 of the cover 40 is further provided with a first inclined plane 431, and correspondingly, the housing 10 is provided with a second inclined plane 18 and two through holes 19, one of the two through holes 19 is disposed at a position where the first diversion trench 12 communicates with the outside, and the other is disposed at a position where the second diversion trench 13 communicates with the outside. One of the two through holes 19 is used for introducing the heat transfer medium and the other is used for guiding out the heat transfer medium. The second inclined surface 18 is disposed near the through hole 19 of the first diversion trench 12, and correspondingly, the first inclined surface 431 is disposed at the first area 41, so as to facilitate the heat-conducting medium to flow in or out.

In the embodiment of the present application, please refer to fig. 3, fig. 4 and fig. 6, in combination with other drawings. The housing 10 is provided with a second communication groove 16, the second communication groove 16 extending in the second direction F2, one end of the second communication groove 16 communicating with the second receiving groove 123. The second diversion trench 13 includes a third communication groove 131, a first diversion channel 132 and a second diversion channel 133, one end of the first diversion channel 132 is communicated with the second containing groove 123 through the second communication groove 16, the other end of the first diversion channel 132 is communicated with one end of the second diversion channel 133 through the third communication groove 131, the third communication groove 131 extends along the second direction F2, the other end of the third communication groove 131 is communicated with the second diversion channel 133, the other end of the second diversion channel 133 is communicated with the external environment, wherein the other end of the second diversion channel 133 refers to one end of the second diversion channel 133 far away from the third communication groove 131. The first diversion channel 132 and the second diversion channel 133 both extend along the first direction F1; the flow rate of the heat conducting medium in the first diversion channel 132 is greater than the flow rate of the heat conducting medium in the second diversion channel 133. Alternatively, the width of the first diverting channel 132 is smaller than the width of the second diverting channel 133, so that the reduction of the width of the first diverting channel 132 can be utilized to reduce the cross-sectional area of the diverting channel, thereby increasing the pressure on the heat conducting medium to increase the flow rate.

Further, at least one horizontal flow channel 134 is arranged between the first flow guiding channel 132 and the second flow guiding channel 133, and two ends of the horizontal flow channel 134 are respectively communicated with the first flow guiding channel 132 and the second flow guiding channel 133. Thereby facilitating the mounting of some electronic components or modules that are less efficient in generating heat. Specifically, the width of the first diversion channel 132 is smaller than the width of the second diversion channel 133, and the first diversion channel 132 and the second communication groove 16 increase the pressure of the first diversion channel 132 and the second communication groove 16 on the heat transfer medium by reducing the size of the cross section, so as to increase the flow rate of the heat transfer medium. Meanwhile, since the housing 10 is formed by die casting, the first guide channel 132 can be minimized in the case of satisfying the die casting process, thereby improving the space utilization of the heat exchange mechanism 100.

Alternatively, the horizontal flow channels 134 may be curved in such a way that a larger flow area may be obtained over a certain length. The flow area described in the embodiment of the present application refers to an area through which the heat transfer medium flows in the horizontal flow channel 134.

Further, the housing 10 is provided with at least one heat exchanging protrusion 17, the heat exchanging protrusion 17 is arranged in the second diversion channel 133, and the extending direction of the heat exchanging protrusion 17 is the same as the extending direction of the second diversion channel 133. Specifically, the heat exchanging protrusions 17 extend in the first direction F1. The heat exchanging protrusions 17 are provided in the second guide channels 133 to serve as heat exchanging fins to increase a heat exchanging area. In this embodiment, the width of the second diversion channel 133 is greater than that of the first diversion channel 132, and the number of the two heat exchanging protrusions 17 is two, and the two heat exchanging protrusions 17 extend parallel to the wall surface of the second diversion channel 133.

For the horizontal flow channel 134, please refer to fig. 3, 4, 6 and 7, wherein fig. 7 shows an enlarged view of the portion C of fig. 6 in combination with other drawings provided in one embodiment of the present application. The horizontal flow passage 134 is provided with a backflow preventing protrusion 1341, and the backflow preventing protrusion 1341 is located at a communication position between the horizontal flow passage 134 and the second diversion passage 133. When the heat conducting medium flows to the connection part of the horizontal flow channel 134 and the second flow guiding channel 133, the heat conducting medium can be separated by the wall surface of the backflow preventing protrusion 241, so that the flowing directions of the heat conducting medium in the horizontal flow channel 134 and the heat conducting medium in the second flow guiding channel 133 are the same when the heat conducting medium flows to the backflow preventing protrusion 241, and the heat conducting medium is prevented from flowing back to the horizontal flow channel 134 from the second flow guiding channel 133, so that the flowing of the heat conducting medium is facilitated, and the heat radiating efficiency is improved.

In the embodiment of the present application, please refer to fig. 2 and 8, wherein fig. 8 shows a schematic view of a cover plate 40 according to one embodiment of the present application, and other drawings are combined. The cover plate 40 is further provided with a third region 44, the third region 44 is disposed at the second region 42 near the through hole 19, at the third region 44: the cover plate 40 is provided with a protruding mounting platform 45 for mounting electronic components towards one side of the accommodating cavity 11, a heat dissipation channel 46 is arranged on one side of the cover plate 40 away from the accommodating cavity 11, and the heat dissipation channel 46 and the mounting platform 45 are correspondingly arranged on two sides of the cover plate 40 and are both arranged at the third area 44. The heat dissipation channel 46 communicates with the first and/or second flow guide channels 132, 133, so that a heat transfer medium may flow in the heat dissipation channel 46, so that the third region 44 may dissipate heat from an electronic component or module disposed on the mounting platform 45. It should be noted that the heat dissipation channel 46 is concavely disposed toward the cover plate 40, and a plurality of protruding structures are disposed in the heat dissipation channel 46, so as to increase the heat exchange area.

The embodiment of the application provides a heat exchange mechanism 100, wherein the heat exchange mechanism 100 comprises a shell 10, a heat conducting medium, a heat dissipation member 30 and a cover plate 40. The shell 10 is provided with a containing cavity 11, a first diversion trench 12 and a second diversion trench 13, the containing cavity 11 is communicated with the first diversion trench 12 and the second diversion trench 13, one end of the first diversion trench 12 penetrates through the shell 10 to be communicated with the external environment, the other end of the first diversion trench 12 is communicated with the second diversion trench 13, and the other end of the second diversion trench 13 is communicated with the external environment. The heat transfer medium flows in the first and second diversion trenches 12 and 13. The heat dissipation element 30 is installed in the first diversion trench 12, and the heat dissipation element 30 is used for improving the heat dissipation efficiency in the first diversion trench 12. The cover plate 40 is provided with a first area 41 and a second area 42, the first area 41 is covered on the first diversion trench 12, the first area 41 and the first diversion trench 12 are jointly enclosed to form a first heat dissipation area, the second area 42 is covered on the second diversion trench 13, the second area 42 and the second diversion trench 13 are jointly enclosed to form a second heat dissipation area, the first heat dissipation area is sealed with the accommodating cavity 11, and the second heat dissipation area is sealed with the accommodating cavity 11. Through the above design, in the process of using the heat exchange mechanism 100, the electronic component with larger heat generation amount is installed in the first area 41, and the electronic component with smaller heat generation amount is installed in the second area 42, so as to meet different heat dissipation requirements of different modules in the charging pile 1000.

It should be noted that the description and drawings of the present application show preferred embodiments of the present application, but the present application may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, which are not to be construed as additional limitations on the content of the present application, but are provided for the purpose of providing a more thorough understanding of the present disclosure. The above-described features are further combined with each other to form various embodiments not listed above, and are considered to be the scope described in the present specification; further, modifications and variations of the present utility model may occur to those skilled in the art in light of the foregoing teachings, and all such modifications and variations are intended to be within the scope of the appended claims.

Claims (10)

1. A heat exchange mechanism, comprising:

the shell is provided with a containing cavity, a first diversion trench and a second diversion trench which are communicated are arranged in the containing cavity, and the first diversion trench and the second diversion trench are respectively communicated with the external environment; a horizontal flow channel is further arranged in the first diversion trench and/or the second diversion trench;

the heat dissipation piece is arranged on the first diversion trench and/or the second diversion trench;

the cover plate is connected with the accommodating cavity, the cover plate is matched with the first diversion trench to form a first heat dissipation area sealed and isolated from the accommodating cavity, and the cover plate is matched with the second diversion trench to form a second heat dissipation area sealed and isolated from the accommodating cavity.

2. The heat exchange mechanism according to claim 1, wherein,

the heat dissipation piece comprises a mounting part, a main body part, a first fin and a second fin, wherein the mounting part is mounted at the bottom of the first diversion trench and seals the bottom of the first diversion trench, the first fin and the second fin are fixedly connected with the mounting part through the main body part, and the extending direction of the first fin is different from the extending direction of the second fin.

3. The heat exchange mechanism according to claim 2, wherein the first flow guiding groove comprises a first accommodating groove, a first communicating groove and a second accommodating groove, one end of the first accommodating groove is communicated with the external environment, and the other end of the first accommodating groove is communicated with the second accommodating groove through the first communicating groove and is communicated with the second flow guiding groove through the second accommodating groove;

the first accommodating groove and the second accommodating groove are internally provided with the heat dissipation piece.

4. The heat exchange mechanism according to claim 3, wherein the notch of the first accommodating groove and the notch of the second accommodating groove are respectively provided with a clamping groove, the cover plate is provided with a protrusion, the protrusion extends into the clamping groove and abuts against one end of the heat dissipation member away from the mounting portion, and the heat conduction medium circulates in the gaps between the fins.

5. The heat exchange mechanism of claim 3, wherein the second diversion trench comprises a first diversion trench, a third communication trench and a second diversion trench, one end of the first diversion trench is communicated with the second containing trench through the second communication trench, the other end of the first diversion trench is communicated with one end of the second diversion trench through the third communication trench, and the other end of the second diversion trench is communicated with the external environment.

6. The heat exchange mechanism according to claim 5, wherein at least one horizontal flow passage is provided between the first flow guide passage and the second flow guide passage, and both ends of the horizontal flow passage are respectively communicated with the first flow guide passage and the second flow guide passage.

7. The heat exchange mechanism of claim 6 wherein the horizontal flow channels are curved to increase their flow area.

8. The heat exchange mechanism of claim 6, wherein the horizontal flow channel is provided with a backflow prevention protrusion, and the backflow prevention protrusion is located at a communication position between the horizontal flow channel and the second flow guiding channel.

9. The heat exchange mechanism of claim 6, wherein the width of the first flow directing channel is less than the width of the second flow directing channel.

10. The heat exchange mechanism of claim 7, wherein the housing is provided with at least one heat exchange protrusion, the heat exchange protrusion is disposed in the second flow guiding channel, and an extension direction of the heat exchange protrusion is the same as an extension direction of the second flow guiding channel.

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