CN204404608U - Cooling device - Google Patents
Cooling device Download PDFInfo
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- CN204404608U CN204404608U CN201420814554.0U CN201420814554U CN204404608U CN 204404608 U CN204404608 U CN 204404608U CN 201420814554 U CN201420814554 U CN 201420814554U CN 204404608 U CN204404608 U CN 204404608U
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Abstract
The utility model provides a kind of cooling device, and it comprises header and multiple flat tube be communicated with header, is provided with fin between adjacent flat tube; Described cooling device also comprises dividing plate, and described dividing plate comprises flat main part, and the length of described main part is less than the half of the length of described header; It is inner that described dividing plate is installed in described header regularly, and described main part is arranged obliquely relative to the axis of described header, at a certain angle with the axis shape of described header; Described main part offers throughly multiple flow-disturbing through hole, the aperture of described flow-disturbing through hole is less than or equal to 6 millimeters, and the circulation area sum of described multiple flow-disturbing through hole and the ratio of the captured area of described main part in described header are greater than 0.2, are less than 0.5.
Description
Technical field
The utility model relates to a kind of cooling device, belongs to air-condition heat exchanger field.
Background technology
Cooling device generally comprises at least two headers and multiple flat tube be connected between two headers, and the plurality of flat tube is arranged in parallel, and the inside of flat tube is provided with the microchannel be communicated with header, is provided with fin between adjacent flat tube.When heat exchanger works, the cold-producing medium of fluid state is flowed between two headers by the microchannel in flat tube, and by flat tube and fin and extraneous heat-shift.
Flowing to the process of another header by flat tube from a header at cold-producing medium, in order to obtain preferably heat exchange efficiency, should guarantee that cold-producing medium can by multiple flat tubes of being assigned to comparatively fifty-fifty between two headers.But in existing most cooling device, cold-producing medium is generally gas-liquid two-phase, and easily there is lamination in the cold-producing medium of gas-liquid two-phase in header, the gaseous refrigerant oxidant layer that namely gaseous refrigerant and liquid refrigerant are gathered into all respectively or the overwhelming majority is gaseous state with all or the overwhelming majority be liquid liquid refrigeration oxidant layer.This lamination can hinder cold-producing medium to be assigned to fifty-fifty in multiple flat tube, causes the heat exchange property of heat exchanger to reduce.
Therefore, be necessary to improve existing technology, to solve above technical problem.
Utility model content
The purpose of this utility model is to provide one can prevent cold-producing medium from header, occurring gas-liquid two-phase lamination, thus obtains the cooling device of better heat exchange property.
For achieving the above object, the utility model adopts following technical scheme: a kind of cooling device, comprises header and multiple flat tube be communicated with header, is provided with fin between adjacent flat tube; Described cooling device also comprises dividing plate, and described dividing plate comprises flat main part, and the length of described main part is less than the half of the length of described header; It is inner that described dividing plate is installed in described header regularly, and described main part is arranged obliquely relative to the axis of described header, at a certain angle with the axis shape of described header; Described main part offers throughly multiple flow-disturbing through hole, the aperture of described flow-disturbing through hole is less than or equal to 6 millimeters, and the circulation area sum of described multiple flow-disturbing through hole and the ratio of the captured area of described main part in described header are greater than 0.2, are less than 0.5.
Preferably, the axis of described main part and described header forms the angle being greater than 0 degree, being less than or equal to 60 degree.
Preferably, described header offers the punching that the described flat tube of multiple confession inserts, and the section tubular wall be positioned at around described punching of described header protrudes from the inwall of described header, the inwall of described header is formed the lug boss that multiple middle part is provided with opening, and the opening of one end in the middle part of described lug boss of described flat tube inserts in described header; Described dividing plate also comprises flat location division, and described location division and described main part form the angle being greater than 90 degree, being less than or equal to 120 degree, and described location division is inserted between two adjacent above-mentioned lug bosses; Described main part and/or location division are fixed on the inwall of described header by welding manner.
Preferably, described header is separated into inflow segment and flows out section by described dividing plate, described inflow segment is communicated with from different flat tubes respectively with described outflow section, described cooling device pours into cold-producing medium by the flat tube be communicated with described inflow segment to described inflow segment, to be assigned to by cold-producing medium in the flat tube be communicated with described outflow section by described outflow section.
Preferably, described multiple flow-disturbing through hole is arranged in matrix shape on described main part, and in the matrix that described multiple flow-disturbing arrays of openings becomes, flow-disturbing through hole arranges in machine and transverse direction all equally spacedly.
Preferably, the axis of described main part and described header forms the angle being greater than 0 degree, being less than or equal to 20 degree.
Preferably, described dividing plate also comprises flat support sector, and described support sector perpendicular to described main part, and is connected with the side of described main part or is connected; The exterior lateral sides of described support sector and the inwall of described header form interference fit or are welded on the inwall of described header, thus it is inner described dividing plate to be fixed on described header.
Preferably, described cooling device also comprises the end of being located at described header and by the end plate of the end-enclosed of described header, one end of described dividing plate is fixed on the inwall of described end plate by welding manner.
Preferably, described flow-disturbing number of openings is multiple, and described multiple flow-disturbing through hole forms a line equally spacedly along the length direction of described main part on described main part.
Preferably, the aperture of described flow-disturbing through hole is less than or equal to 4 millimeters.
In the cooling device that the utility model discloses, be provided with in header and there is certain angle of inclination and the dividing plate offering flow-disturbing through hole, when the cold-producing medium of fluid state flows in header, its flow direction can be changed by dividing plate, and flow-disturbing through hole then can make the flow regime of cold-producing medium become comparatively disorderly simultaneously.The cold-producing medium of gas-liquid two-phase so just can be made to be mixed to get in flow process more abundant, effectively prevent cold-producing medium from header, occurring gas-liquid two-phase lamination, be conducive to, by cold-producing medium mean allocation in multiple flat tube, obtaining preferably heat transfer effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the cooling device that first better embodiment of the present utility model provides.
Fig. 2 is the cross-sectional schematic of the cooling device shown in Fig. 1.
Fig. 3 is the structural representation of the dividing plate of the cooling device shown in Fig. 1.
Fig. 4 is the partial cutaway view schematic of the cooling device that second better embodiment of the present utility model provides.
Fig. 5 is the cross-sectional schematic of the 3rd cooling device that better embodiment provides of the present utility model.
Fig. 6 is the structural representation of the dividing plate of the cooling device shown in Fig. 4.
Fig. 7 is the cross-sectional schematic of the 4th cooling device that better embodiment provides of the present utility model.
Detailed description of the invention
Refer to Fig. 1 and Fig. 2, first better embodiment of the present utility model provides a kind of cooling device 100, and it can be applied in refrigeration system (such as air-conditioning) as evaporimeter.This cooling device 100 comprise four shapes be straight tube-like and the header 3 be parallel to each other, 4,5,6, multiple flat tube 7, multiple fin 8 and side plate 9.The concrete shape of header 3,4,5,6 can be cylindrical straight pipe, prismatic straight tube etc., is preferably the straight tube of four prism type in present embodiment; Wherein header 3,5 is arranged close to each other, and header 4,6 is arranged close to each other.Between header 3 and 4, be connected with one group be parallel to each other and between the flat tube 7 arranged equally spacedly, header 5 and 6, be connected with another group and be parallel to each other and the flat tube 7 arranged equally spacedly.The concrete grammar be connected to by flat tube 7 on corresponding header is: form multiple punching corresponding with the shape of flat tube 7 in the same side of header, such as, punching 34 shown in Fig. 2 and punching 44, these punchings arrange equally spacedly along the length direction of header; In the multiple flat tubes 7 corresponding with this header, one end of each flat tube 7 to be inserted on this header in a corresponding punching.Be provided with in flat tube 7 and be communicated with corresponding header, for the microchannel of cold-producing medium circulation, the fin 10 of shutter shape is provided with (herein in order to make diagram comparatively simple and clear between adjacent flat tube 7 in every one deck of this heat exchanger 100, illustrate only part fin 10), for improving heat exchange efficiency.Like this, header 3 and 4 and flat tube 7 therebetween and fin 8 form the ground floor of this cooling device 100, and header 5 and 6 and flat tube 7 therebetween and fin 8 form the second layer of this cooling device 100.
This cooling device 100 also comprises inlet tube 1, outlet 2, first shim 33 and the second shim 53.Wherein the first shim 33 is arranged on the middle part of header 3, header 3 is separated into two pipeline sections be not directly interconnected 31 and 32.In the utility model, the concrete meaning of " not directly being interconnected " refers to the adjacent pipeline section of two of header and is completely isolated in the structure of header self and comes, and any a part of inner space not by header realizes being interconnected; To make fluid circulate between these two adjacent tubular segments, can only by being arranged on outside header, the outside currency structure be communicated with respectively with these two pipeline sections realizes, and does not realize by any structure of header self.Second shim 53 is arranged on the middle part of header 5, header 5 is separated into two pipeline sections be not directly interconnected 51 and 52.Wherein pipeline section 31 and pipeline section 52 are arranged in parallel to each other, and pipeline section 32 and pipeline section 51 are arranged in parallel to each other, and pipeline section 32 and pipeline section 51 are interconnected.The concrete mode of communicating of pipeline section 32 and pipeline section 51 can be the prior art of field of heat exchangers, such as, on pipeline section 32 and pipeline section 51 side respect to one another, offer intercommunicating pore to be interconnected, here without the need to repeating.Inlet tube 1 is arranged on pipeline section 31 end, and outlet 2 is arranged on pipeline section 52 end.Inlet tube 1 and outlet 2 can be the bend pipes of aluminum, and its concrete shape can be adjusted according to the concrete environment for use of cooling device 100.
According to above-mentioned assembling mode, in the ground floor of this cooling device 100 and the second layer, four flow processs for allowing cold-producing medium circulate can be formed altogether.Concrete flow process structure is, in ground floor, this part body of pipeline section 31, flat tube 7 between pipeline section 31 and a part of body of header 4 and header 4 forms the first pass of cooling device 100, and another part body of header 4, the flat tube 7 between this another part body and pipeline section 32 of header 4 and pipeline section 32 form the second flow process of cooling device 100; In the second layer, this part body of pipeline section 51, flat tube 7 between pipeline section 51 and a part of body of header 6 and header 6 forms the 3rd flow process of cooling device 100, and another part body of header 6, the flat tube 7 between this another part body and pipeline section 52 of header 6 and pipeline section 52 form the 4th flow process of cooling device 100.Above-mentioned first pass correspond to the order of the 4th flow process the order that cooling device 100 work schedule cryogen flows through these four flow processs.When using this cooling device 100, be connected by inlet tube 1 with the throttle part (such as expansion valve) of refrigeration system (such as air-conditioning system), liquid reservoir or the compressor of outlet 2 and refrigeration system are connected.The cold-producing medium being in fluid state, after throttle part adjust flux, flows into from inlet tube 1, flows through above-mentioned first to fourth flow process successively, finally flows out from outlet 2, enters the liquid reservoir of refrigeration system or compressor to circulate.When cold-producing medium flows through flat tube 7 each time, extraneous heat can be absorbed by flat tube 7 and fin 8.
Cooling device 100 also comprises and is arranged in its header, for the dividing plate preventing the cold-producing medium in header from occurring gas-liquid two-phase lamination.What this dividing plate was arranged on cooling device 100 is not separated in the header of the pipeline section be not directly interconnected by shim, that is can be arranged in header 4 and/or header 6.See also Fig. 2 and Fig. 3, be described in detail for the feature of dividing plate 43 to described dividing plate be arranged in header 4 below.
As shown in Figure 3, described dividing plate 43 comprises main part 431 and location division 432.Main part 431 is the flat board be roughly rectangle, and has two shorter edge 431a be parallel to each other and two and is parallel to each other and the longer edges 431b vertical with above-mentioned shorter edge 431a.In present embodiment, in order to coordinate with the header 4 of four prism type (namely square), shorter edge 431a and longer edges 431b is arranged to straight; Be appreciated that, if header 4 adopts other shapes such as pipe, then also shorter edge 431a and/or longer edges 431b can be arranged to other shapes such as arc, so that mutually corresponding with the inner wall shape of header 4, make dividing plate 43 stably, seamlessly be arranged in header 4.The width of main part 432 (namely two as in Fig. 2 the distance W2 that indicates) with the width of header 4 (as in Fig. 1 the distance W1 that indicates) mutually corresponding, it can be such as the width being slightly less than header 4, therefore dividing plate 43 can be loaded header 4 inner, make the width of dividing plate 43 keep vertical with the length direction of header 4 simultaneously, namely make the shorter edge 431a of main part 431 keep vertical with the length direction of header 4.In addition, the length (i.e. the length of its any longer edges 431b) of main part 431 is less than the half of the length of header 4.The main part 431 of dividing plate 43 also offers multiple flow-disturbing through hole 433.In the present embodiment, flow-disturbing through hole 433 is manhole, the surface that two of through main part 431 are relative, and its aperture is less than or equal to 6 millimeters, is more preferably less than or equal to 4 millimeters.The plurality of flow-disturbing through hole 433 arranges in the matrix form on main part 431, and the transverse direction of matrix of flow-disturbing through hole 433 formation and the shorter edge 431a of main part 431 are parallel to each other, the longitudinal direction of matrix that flow-disturbing through hole 433 is formed and the longer edges 431b of main part 431 are parallel to each other.Flow-disturbing through hole 433 formed matrix horizontal and vertical on, flow-disturbing through hole 433 arranges all equally spacedly.In addition, the ratio offering the surperficial area of of the plurality of flow-disturbing through hole 433 of the circulation area sum of the plurality of flow-disturbing through hole 433 and main part 431 was preferably greater than for 0.2 (not comprising 0.2), was less than for 0.5 (not comprising 0.5) simultaneously.In other embodiments, the shape of flow-disturbing through hole 433, aperture and arrangement mode also can adopt other schemes, depending on concrete environment for use, are not subject to the restriction of present embodiment.Location division 432 is the bending laths formed relative to other parts bending certain angle of main part 431 side at main part 431 shorter edge 431a place.In the present embodiment, the angular range that location division 432 bends relative to main part 431 is for being equal to or greater than 60 degree, being less than 90 degree (not comprising 90 degree), that is, the scope of the angle b formed between location division 432 and main part 431 is greater than 90 degree (not comprising 90 degree), is less than or equal to 120 degree.
Referring to Fig. 2, when dividing plate 43 is arranged on header 4 inside, is the side being connected with flat tube 7 supported location division 432 at header 4, such as, in Fig. 2 upside of header 4.Concrete assembly structure as shown in Figure 2, according to above-mentioned method flat tube 7 is connected on corresponding header, the upside of header 4 offers multiple punching 44, and the plurality of punching 44 arranges equally spacedly along the length direction of header 4, and the end for flat tube 7 is inserted.Owing to when forming punching 44 being generally the mode of employing punching press, look outside header 4, header tube wall around punching 44 is sagging, accordingly, on the inwall of header 4, header tube wall around punching 44 is protruding, make being positioned on section tubular wall around punching 44 inwall on the upside of header 4 of header 4 form the lug boss 44a that middle part is provided with opening (i.e. the opening of described punching on header 4 inwall) accordingly, the end of inserting the flat tube 7 of this punching 44 is stretched in header 4 from this lug boss 44a.(" vertically " herein refers to is vertical state to the end of location division 432 in fig. 2 vertically, namely perpendicular to the length direction of header 4) be inserted between selected two adjacent lug boss 44a, lug boss 44a so just can be utilized to clamp location division 432 and locate to a certain extent, prevent location division 432 along the inwall slip of header 4 or the end blocking contiguous flat tube 7.Main part 431 extends out from bottom, location division 432, is blocked in the inside of header 4.
Because main part 431 and location division 432 form above-mentioned angle b, and location division 432 vertically arranges, and all structure is at a certain angle for the inwall of the therefore axis of main part 431 and header 4 and header 4.Due to the square tube that header in present embodiment 4 is four prism types, its sidewall is axially parallel with it, therefore the angle that the angle that forms of main part 431 and the axis of header 4 and main part 431 and the inwall on the downside of header 4 are formed is identical, all represent with a in present embodiment, as shown in Figure 2.Corresponding to the above-mentioned concrete structure of dividing plate 43, can learn that the scope of this angle a is for being greater than 0 degree (not comprising 0 degree), is less than or equal to 60 degree.Another shorter edge 431a of main part 431, is namely in the shorter edge 431a of main part 431 side relative with location division 432, supports on the inwall (the downside inwall of the header 4 such as shown in Fig. 2) of the opposite side at header 4.Afterwards, under the prerequisite of above-mentioned assembling mode keeping dividing plate 43, dividing plate 43 is fixed on header 4 inner.Concrete fixed form can be directly contact the means such as cooperation (such as interference fit) or welding (such as spot welding).According to welding manner stationary barrier 43, then can the main part 431 of dividing plate 43 and/or location division 432 be welded on the inwall of header 4, that is, whole four sides of dividing plate 43 (two above-mentioned shorter edge 431a and two longer edges 431b) can be welded on respectively the inside of four sidewalls of header 4 during welding, also only the part side of dividing plate 43 can be welded on the interior contiguous with this part side of header 4, such as only two of dividing plate 43 longer edges 431b are welded on the inside of two sidewalls be close to these longer edges 431b of header 4.Obviously, according to above-mentioned assembling mode, now the area on the surface (the surperficial 431c in such as Fig. 3) offering the plurality of flow-disturbing through hole 433 of main part 431 is just equivalent to the captured area of main part 431 in header 4, that is, now the scope of the circulation area sum of the plurality of flow-disturbing through hole 433 and the ratio of the captured area of main part 431 in header 4 was greater than for 0.2 (not comprising 0.2), was less than for 0.5 (not comprising 0.5) simultaneously.
In the present embodiment, location division 432 is plugged between two lug boss 44a closest to the intermediate point of header 4, and the end in the vertical direction of location division 432 is aimed at mutually with the first shim 33 being arranged on header 3 inside.Like this, dividing plate 43 is separated into inflow segment 41 header 4 and flows out section 42.The other end that the flat tube 7 of inflow segment 41 is stretched in one end all stretches into the pipeline section 31 of header 3, and that is, this part flat tube 7 all belongs to above-mentioned first pass, and in the course of the work, the cold-producing medium in this part flat tube 7 is all flow into header 4 from pipeline section 31.The flat tube 7 flowing out section 42 is stretched in one end has one end to stretch into the pipeline section 32 of header 3, and that is, this part flat tube 7 all belongs to above-mentioned second flow process, and in the course of the work, the cold-producing medium in this part flat tube 7 is all flow into pipeline section 32 from header 4.
According to above-mentioned using method, (being generally gas-liquid two-phase) cold-producing medium of fluid state is from after inlet tube 1 enters cooling device 100, inflow segment 41 is entered through pipeline section 31 and the flat tube 7 be connected between pipeline section 31 and inflow segment 41, then dividing plate 43 is arrived, enter through the flow-disturbing through hole 433 on dividing plate 43 and flow out section 42, then enter the flat tube that is connected to and flows out between section 42 and pipeline section 32 from flowing out section 42 and enter pipeline section 32.Because main part 431 has above-mentioned pre-determined tilt angle relative to the length direction of header 4, therefore when the refrigerant contact flowed is to main part 431, its flow direction can change because of the obstruction of main part 431, and correspondingly produces backflow and/or eddy current.These backflows and/or eddy current can allow comparatively close to the cold-producing medium bottom header 4 with comparatively mutually mix close to the cold-producing medium at header 4 top, prevent cold-producing medium from occurring obvious lamination.On the other hand, when cold-producing medium is by flow-disturbing through hole 433, multiple flow-disturbing through hole 433 also can upset the liquid stream of cold-producing medium further, is suppressed the layering tendency of cold-producing medium.Like this, when cold-producing medium enters outflow section 42, there will not be obvious lamination, just can be assigned to comparatively equably in multiple flat tubes 7 of the second flow process at the cold-producing medium flowing out flowing in section 42 like this, obtain preferably heat transfer effect.In addition, test verified, the area offering the surperficial 431c of the plurality of flow-disturbing through hole 433 of the above-mentioned pore diameter range of flow-disturbing through hole 433 and the circulation area sum of multiple flow-disturbing through hole 433 and main part 431 (as mentioned above, the namely now captured area of main part 431 in header 4) above-mentioned ratio range all contribute to suppressing better the layering of cold-producing medium to be inclined to, the flow velocity of cold-producing medium can not be affected significantly simultaneously.
Being appreciated that in header 4 and also can the auxiliary location structure such as reinforcement, pit being set in addition, for coordinating with dividing plate 43, to the location that dividing plate 43 is assisted, making dividing plate 43 more stablely and accurate assembled at header 4.In header 6, also the dividing plate similar to aforementioned barriers 43 can be set, for suppressing the layering tendency of the cold-producing medium of gas-liquid two-phase in header 6.The architectural feature of this dividing plate and assemble method all can refer to dividing plate 43 and the assemble method in header 4 thereof, therefore repeat without the need to repeating.
Compared with the existing cooling device of majority, this cooling device 100 is owing to restrained effectively the lamination of cold-producing medium in header of gas-liquid two-phase, therefore cold-producing medium can be made to distribute more even when being assigned to from header in multiple flat tube, thus obtain preferably heat transfer effect.
Refer to Fig. 4, second better embodiment of the present utility model provides a kind of cooling device.Most of feature of this cooling device all can refer to above-mentioned cooling device 100, therefore illustrate only the partial cutaway view schematic of this cooling device in Fig. 4, wherein includes the difference part of this cooling device and above-mentioned cooling device 100.Specifically, the difference of this cooling device that second better embodiment of the present utility model provides and above-mentioned cooling device 100 is, the inwall of the header 4 of this cooling device is formed with the auxiliary section 45 of protrusion; In present embodiment, the formation method of this auxiliary section 45 is by carrying out punching press to the outer wall of header 4, makes the outer wall of header 4 forms depressed part, thus on the inwall of header 4, forms the auxiliary section 45 of protrusion accordingly.In other embodiments I, this auxiliary section 45 also can use additive method to be formed, as long as can form projective structure on header 4 inwall.A shorter edge 431a (being such as positioned at the shorter edge 431a not forming one end of location division 432 of main part 431) of the main part 431 of dividing plate 43 is connected on auxiliary section 45, and is fixed on auxiliary section 45 by welding manner such as soldering.Dividing plate 43 can be made like this to obtain more stable at header 4 assembled inside.
Refer to Fig. 5, the 3rd better embodiment of the present utility model provides a kind of cooling device 200.Most of feature of this cooling device 200 all can refer to above-mentioned cooling device 100, and the dividing plate (such as aforementioned barriers 43) that itself and the difference of cooling device 100 are to be arranged in this cooling device 200 dividing plate in header 4 and/or header 6 and cooling device 100 is different.Below to be arranged on the dividing plate 44 in the header 4 of this cooling device 200, the feature of the dividing plate of this cooling device 200 is described.
See also Fig. 6, dividing plate 44 comprises main part 441 and Liang Ge support sector 442, wherein main part 441 is elongated rectangular flat, its width is slightly less than the width of the inner space of header 4, namely the distance between the inner surface being slightly less than the sidewall of the inner surface of the sidewall towards header 6 of header 4 and the header dorsad 6 of header 4, makes dividing plate 44 can be inserted into header 4 inner.Main part 441 offers multiple flow-disturbing through hole 443, in the present embodiment, this flow-disturbing through hole 443 is manhole, the surface that two of through main part 441 are relative, and its aperture is less than or equal to 6 millimeters, is more preferably less than or equal to 4 millimeters.Multiple flow-disturbing through hole 443 forms a line equally spacedly along the length direction of main part 441.In addition, the ratio of the area on the circulation area sum of the plurality of flow-disturbing through hole 443 and the surface (the surperficial 441c in such as Fig. 6) offering the plurality of flow-disturbing through hole 443 of main part 441 was preferably greater than for 0.2 (not comprising 0.2), was less than for 0.5 (not comprising 0.5) simultaneously.In other embodiments, the shape of flow-disturbing through hole 443, aperture and arrangement mode also can adopt other schemes, depending on concrete environment for use, are not subject to the restriction of present embodiment.
Support sector 442 is flat boards of strip, and relative with two of the main part 441 respectively side of Liang Ge support sector 442 connects or is connected; This Liang Ge support sector 442 is parallel to each other, and all mutually vertical with main part 441.Be appreciated that, these support sectors 442 adopt the modes such as such as welding to be connected on main part 441 after can being formed in addition independent of main part 441, also can be by bending the two side portions of same plate and main part 441 is formed simultaneously, that is, make the mid portion of this plate form main part 441 by bending, both sides form two support sectors 442 be connected with main part 441 respectively.This dividing plate 44 comprises relative first end 44a and the second end 44b, and in the present embodiment, the distance (that is length of main part 441) between first end 44a and the second end 44b is less than the half of header 4 length; But in other embodiments, the distance between first end 44a and the second end 44b also can be adjusted according to specific needs, is not subject to the restriction of present embodiment.The width of Liang Ge support sector 442 is all increase gradually from first end 44a to the second end 44b, makes the shape of support sector 442 become elongated trapezoidal.In present embodiment, in order to coordinate with the header 4 of four prism type (namely square), the external margin of main part 441 and support sector 442 is all arranged to straight; Be appreciated that, if header 4 adopts other shapes such as pipe, then also the external margin of main part 441 and/or support sector 442 can be arranged to other shapes such as arc, so that mutually corresponding with the inner wall shape of header 4, dividing plate 44 is made stably, to be seamlessly arranged in header 4.
During assembling, the first end 44a of this dividing plate 44 is aimed at one end of header 4 (for header 4 belongs to one end of above-mentioned second flow process in present embodiment, the right-hand member of the header 4 namely shown in Fig. 5), whole dividing plate 44 is all inserted in header 4, whole dividing plate 44 is made all to be placed in header 4 inner, first end 44a is towards the inside of header 4, and the second end 44b is outside towards header 4, and close to one end of header 4.Like this, the main part 441 of dividing plate 44 is in the tilted setting of header 4, specifically, from header 4 inside on the direction of header 4 outside, main part 441 is the relative other sides (downside of the header 4 namely shown in Fig. 5) moving closer to header 4 from the side (upside of the header 4 namely shown in Fig. 5) being plugged with flat tube 7 of header 4.In the present embodiment, the angular range that the axis of main part 441 and header 4 is formed is greater than 0 degree (not comprising 0 degree), is less than or equal to 20 degree.After dividing plate 44 being arranged in header 41 according to aforesaid way, under the prerequisite of above-mentioned assembling mode keeping dividing plate 43, dividing plate 44 is fixed on position as shown in Figure 5, header 4 inside.Concrete fixed form can be directly contact the means such as cooperation (such as interference fit) or welding (such as spot welding).Obviously, according to above-mentioned assembling mode, now the area offering the surperficial 441c of the plurality of flow-disturbing through hole 443 of main part 441 is just equivalent to the captured area of main part 441 in header 4, that is, now the scope of the circulation area sum of the plurality of flow-disturbing through hole 443 and the ratio of the captured area of main part 441 in header 4 was greater than for 0.2 (not comprising 0.2), was less than for 0.5 (not comprising 0.5) simultaneously.Because the distance between first end 44a and the second end 44b is less than the half of header 4 length, and the contiguous header 4 of the second end 44b is in the one end in the second flow process, therefore within the half length belonging to the second flow process just header 4 being all plugged on to all flat tubes 7 of main part 441 (such as, according to the visual angle of Fig. 5, just all be plugged on header 4 to all flat tubes 7 of main part 441 to belong within half section, the right side of the second flow process), namely all belong to the second above-mentioned flow process.
When using this cooling device 200, (being generally gas-liquid two-phase) cold-producing medium of fluid state is from after inlet tube 1 enters cooling device 100, enter header 4 through pipeline section 31 and the flat tube 7 be connected between pipeline section 31 and inflow segment 41, in header 4, enter the second above-mentioned flow process from above-mentioned first pass.Enter the process of the second flow process at cold-producing medium from first pass, the opening of most of flat tube 7 in header 4 due to the second flow process is blocked by the main part 441 of dividing plate 44, therefore in the pipeline section (visual angle according to Fig. 4 is in half section, the right side of header 4) belonging to the second flow process of header 4, major part cold-producing medium can first be stopped by main part 441 and change flow direction, and then via flow-disturbing through hole 443 through dividing plate 44, be then assigned to opening just in multiple flat tubes 7 of main part 441.The cold-producing medium of flowing correspondingly can produce backflow and/or eddy current when being stopped by main part 441 and change flow direction.These backflows and/or eddy current can allow comparatively close to the cold-producing medium bottom header 4 with comparatively mutually mix close to the cold-producing medium at header 4 top, prevent cold-producing medium from occurring obvious lamination.On the other hand, when cold-producing medium is by flow-disturbing through hole 443, multiple flow-disturbing through hole 443 also can upset the liquid stream of cold-producing medium further, is suppressed the layering tendency of cold-producing medium.Like this, the cold-producing medium be assigned in multiple flat tubes 7 of the second flow process through dividing plate 44 just can be assigned with more even, obtains preferably heat transfer effect.In addition, test verified, the area offering the surperficial 441c of the plurality of flow-disturbing through hole 443 of the above-mentioned pore diameter range of flow-disturbing through hole 443 and the circulation area sum of multiple flow-disturbing through hole 443 and main part 441 (as mentioned above, the namely now captured area of main part 441 in header 4) above-mentioned ratio range all contribute to suppressing better the layering of cold-producing medium to be inclined to, the flow velocity of cold-producing medium can not be affected significantly simultaneously.
Being appreciated that in header 4 and also can the auxiliary location structure such as reinforcement, pit being set in addition, for coordinating with dividing plate 44, to the location that dividing plate 43 is assisted, making dividing plate 43 more stablely and accurate assembled at header 4; According to concrete shape and the size of header 4 inwall, the Liang Ge support sector 442 of dividing plate 44 also inwardly or outwards can bend certain angle, to be formed more stable with the inwall of header 4 and to coordinate accurately.In header 6, also the dividing plate similar to aforementioned barriers 44 can be set, for suppressing the layering tendency of the cold-producing medium of gas-liquid two-phase in header 6.The architectural feature of this dividing plate and assemble method all can refer to dividing plate 44, therefore repeat without the need to repeating.
Refer to Fig. 7, the 4th better embodiment of the present utility model provides a kind of cooling device.Most of feature of this cooling device all can refer to above-mentioned cooling device 200, the difference of itself and above-mentioned cooling device 200 is then, in this cooling device that the 4th better embodiment of the present utility model provides, the end of header 4 is provided with the end plate 45 of the end-enclosed of header 4, dividing plate 44 be fixed on the inwall of an end plate 45 towards the one end (i.e. above-mentioned the second end 44b) outside header 4 by welding manner such as soldering, contribute to like this making dividing plate 44 obtain more stable at header 4 assembled inside.
Compared with the existing cooling device of majority, this cooling device 200 is owing to restrained effectively the lamination of cold-producing medium in header of gas-liquid two-phase, therefore cold-producing medium can be made to distribute more even when being assigned to from header in multiple flat tube, thus obtain preferably heat transfer effect.
It should be noted that: the technical scheme of above embodiment only for illustration of the utility model and described by unrestricted the utility model, above about " on ", the description in the orientation such as D score, "left", "right" just for the ease of understanding content of the present utility model, not to restriction of the present utility model.Although this description has been described in detail the utility model with reference to the above embodiments, but, those of ordinary skill in the art is to be understood that, person of ordinary skill in the field still can modify to the utility model or equivalent replacement, and all do not depart from technical scheme and the improvement thereof of spirit and scope of the present utility model, all should be encompassed in right of the present utility model.
Claims (10)
1. a cooling device, comprises header and multiple flat tube be communicated with header, is provided with fin between adjacent flat tube; It is characterized in that: described cooling device also comprises dividing plate, described dividing plate comprises flat main part, and the length of described main part is less than the half of the length of described header; It is inner that described dividing plate is installed in described header regularly, and described main part is arranged obliquely relative to the axis of described header, at a certain angle with the axis shape of described header; Described main part offers throughly multiple flow-disturbing through hole, the aperture of described flow-disturbing through hole is less than or equal to 6 millimeters, and the circulation area sum of described multiple flow-disturbing through hole and the ratio of the captured area of described main part in described header are greater than 0.2, are less than 0.5.
2. cooling device as claimed in claim 1, is characterized in that: the axis of described main part and described header forms the angle being greater than 0 degree, being less than or equal to 60 degree.
3. cooling device as claimed in claim 2, it is characterized in that: described header offers the punching that the described flat tube of multiple confession inserts, and the section tubular wall be positioned at around described punching of described header protrudes from the inwall of described header, the inwall of described header is formed the lug boss that multiple middle part is provided with opening, and the opening of one end in the middle part of described lug boss of described flat tube inserts in described header; Described dividing plate also comprises flat location division, and described location division and described main part form the angle being greater than 90 degree, being less than or equal to 120 degree, and described location division is inserted between two adjacent above-mentioned lug bosses; Described main part and/or location division are fixed on the inwall of described header by welding manner.
4. cooling device as claimed in claim 2, it is characterized in that: described header is separated into inflow segment and flows out section by described dividing plate, described inflow segment is communicated with from different flat tubes respectively with described outflow section, described cooling device pours into cold-producing medium by the flat tube be communicated with described inflow segment to described inflow segment, to be assigned to by cold-producing medium in the flat tube be communicated with described outflow section by described outflow section.
5. as the cooling device in claim 1-4 as described in any one, it is characterized in that: described multiple flow-disturbing through hole is arranged in matrix shape on described main part, in the matrix that described multiple flow-disturbing arrays of openings becomes, flow-disturbing through hole arranges in machine and transverse direction all equally spacedly.
6. cooling device as claimed in claim 1, is characterized in that: the axis of described main part and described header forms the angle being greater than 0 degree, being less than or equal to 20 degree.
7. cooling device as claimed in claim 6, it is characterized in that: described dividing plate also comprises flat support sector, described support sector perpendicular to described main part, and is connected with the side of described main part or is connected; The exterior lateral sides of described support sector and the inwall of described header form interference fit or are welded on the inwall of described header, thus it is inner described dividing plate to be fixed on described header.
8. cooling device as claimed in claim 6, is characterized in that: described cooling device also comprises the end of being located at described header and by the end plate of the end-enclosed of described header, one end of described dividing plate is fixed on the inwall of described end plate by welding manner.
9. as the cooling device in claim 6-8 as described in any one, it is characterized in that: described flow-disturbing number of openings is multiple, described multiple flow-disturbing through hole forms a line equally spacedly along the length direction of described main part on described main part.
10. cooling device as claimed in claim 1, is characterized in that: the aperture of described flow-disturbing through hole is less than or equal to 4 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420814554.0U CN204404608U (en) | 2014-12-19 | 2014-12-19 | Cooling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420814554.0U CN204404608U (en) | 2014-12-19 | 2014-12-19 | Cooling device |
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| CN204404608U true CN204404608U (en) | 2015-06-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017223399A (en) * | 2016-06-14 | 2017-12-21 | 株式会社デンソー | Cooling system |
| CN111912283A (en) * | 2020-09-04 | 2020-11-10 | 浙江盾安热工科技有限公司 | Liquid separation structure and heat exchanger |
-
2014
- 2014-12-19 CN CN201420814554.0U patent/CN204404608U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017223399A (en) * | 2016-06-14 | 2017-12-21 | 株式会社デンソー | Cooling system |
| CN111912283A (en) * | 2020-09-04 | 2020-11-10 | 浙江盾安热工科技有限公司 | Liquid separation structure and heat exchanger |
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