CN209431719U - A kind of dropping-prevention piece flat flow automobile condenser - Google Patents

Abstract

The utility model relates to a kind of dropping-prevention piece flat flow automobile condensers, comprising: the first header, the second header, flat tube and fin；First header and the second header are arranged in parallel, and flat tube disposed in parallel is connected between the first header and the second header, is provided with fin between two adjacent flat tubes；The repetitive unit of fin is trapezoidal shape, and trapezoidal top is provided with several the first guide grooves of inverted triangle shape, and the starting point of fin and clearing end are not contacted with the first header, the second header；Cylindric runner is provided in flat tube, it is axial respectively on two flat horizontal surfaces of flat tube to be provided with two convex ribs, flat tube is additionally provided with the second guide groove of inverted triangle shape in the bottom of convex ribs opposite side, and the starting point and clearing end of convex ribs and the second guide groove are corresponding with the starting point of fin and termination end position.The utility model provides a kind of dropping-prevention piece flat flow automobile condenser, has the advantages that welding effect is secured, is not easy piece, does not allow to be also easy to produce fin corrode.

Description

A kind of dropping-prevention piece flat flow automobile condenser

Technical field

The utility model relates to air conditioning condenser for vehicle, further to a kind of dropping-prevention piece flat flow automobile condenser.

Background technique

Laminar flow type condenser is technology newer in automobile condenser, before having more development compared to serpentine condenser On the way, it is especially widely used in small passenger car system.

Laminar flow type condenser is mainly made of header, flat tube and fin three-major-items, at work, refrigerant in flat tube and It is flowed in header, the main effect of the fin between flat tube is to carry out heat transfer.

Fin generally uses aluminum material, and no enough leeway is easy to cause after usually fin is inserted between flat tube It smears brazing flux and is therefore easy to cause the bad phenomenon of the welding between fin and flat tube.To solve the above-mentioned problems, the prior art In also have and improved by the way of changing fin shape, specifically, for conventional Wavelike finned, in the wave of fin It is arranged at peak and/or trough towards opposite interior molding fillet, the advantage is that: brazing flux can be contained in the fillet Portion strengthens the effect of welding.

However above-mentioned settling mode brings other problems therewith, specifically, soldering oven is passed to by heat Workpiece makes brazing filler metal melts to be welded, and above-mentioned improved procedure makes to contain excessive solder in fillet instead, causes to weld The temperature for meeting place is excessively high, and the time of contact of fin masterbatch and solder is longer, more fin is easy to cause to generate because of high temperature Corrode is more serious.

Therefore, the welding is not firm for existing in the prior art, is easy piece, the technology for being easy to produce fin corrode is asked Topic, it is necessary to develop a kind of dropping-prevention piece flat flow automobile condenser.

Summary of the invention

The utility model overcomes the deficiencies in the prior art, provides a kind of dropping-prevention piece flat flow automobile condenser, welding Effect is secured, does not allow to be also easy to produce piece, and does not allow to be also easy to produce fin corrode phenomenon.

In order to achieve the above objectives, the technical solution adopted in the utility model are as follows: a kind of dropping-prevention piece flat flow automobile condenser, It include: the first header, the second header, flat tube and fin, first header and the second header are arranged in parallel, described It is connected with several flat tubes disposed in parallel between first header and the second header, is provided with wing between two adjacent flat tubes Piece；The repetitive unit of the fin is trapezoidal shape, and the trapezoidal top is provided with several the first guide grooves of inverted triangle shape, institute The starting point and clearing end for stating fin are not contacted with first header, the second header；It is provided in the flat tube several Cylindric runner, axial respectively on two flat horizontal surfaces of the flat tube to be provided with two convex ribs, the flat tube is in convex ribs opposite one The bottom of side is additionally provided with the second guide groove of inverted triangle shape, the convex ribs, the starting point of second guide groove and clearing end with it is described The starting point of fin is corresponding with end position is terminated.

The first guide groove of inverted triangle shape on the fin can be filled out after brazing filler metal melts through capillary action for accommodating solder It is charged to the inside of first guide groove, and then the secured performance of welding can be promoted.The second guide groove for being arranged on the flat tube with The setting direction of the first guide groove on the fin be it is perpendicular, due to the capillarity of the solder of fusing, extra solder The second guide groove can be gradually spread to from the first guide groove, avoid the fin corrode because of caused by the solder excess in the first guide groove existing As.

Second main cause of fin corrode phenomenon is that the redundant brazing filler metal at header is guided at fin and is caused, because This, the starting point of the fin and clearing end can not be contacted with first header, the second header, it is preferred that described The spare bits of 2-3 fin repetitive unit size are set between beginning and clearing end and first header, the second header It sets, avoids so that the redundant brazing filler metal at header is flowed directly on fin and leads to fin corrode.Further, the convex ribs, The starting point of second guide groove and clearing end are corresponding with the starting point of the fin and termination end position, also corresponding far from afflux Pipe, avoids that redundant brazing filler metal is caused to flow to fin.

More specifically, the distance between two convex ribs are equal to the width of fin, and the main function of two convex ribs is to push down The two sides of fin, prevent piece, and the qualification rate of welding can be improved.

In the utility model one preferred technical solution, limit card block is also vertically installed on the flat tube, it is described The position of limit card block is set at the convex ribs, the starting point of the second guide groove and clearing end.The limit card block purport of such setting Lead to fin corrode further preventing at header redundant brazing filler metal to flow to fin.

In the utility model one preferred technical solution, inlet and outlet is additionally provided on first header.

In the utility model one preferred technical solution, it is arranged between import and export in first header There are first partition and second partition, is provided with third partition at center in second header.By the way that partition is arranged, can be formed Heat exchange is reinforced in snakelike reflux.

In the utility model one preferred technical solution, the two sides of first header and second header It is provided with the installation sheet being easily installed.

In the utility model one preferred technical solution, the trapezoidal top is arranged in parallel with three inverted triangle shapes First guide groove, the depth of inverted triangle is 0.5 times -1 times of the fin thickness in first guide groove.It is conventional in the prior art Fin thickness depth of inverted triangle in 0.1mm or so, first guide groove is preferably 0.5 times.Guide groove will lead to very much receiving deeply Solder it is excessive, guide groove is shallowly easy to cause very much solder insufficient.The fin can be made by punch forming.

In the utility model one preferred technical solution, the depth of the depth of second guide groove and first guide groove It spends identical.First guide groove and the second guide groove Relative vertical setting, second guide groove, which is mainly used for receiving first, leads The solder of extra spilling in slot.

The utility model solves defect present in background technique, and the beneficial effects of the utility model are as follows:

1, the utility model is relative to conventional fin, to be brazed stronger by the way that the first guide groove is arranged, is not easy pine De- deformation, the ability of resistance to compression antidetonation are stronger；By two convex ribs of setting, fin is pressed from two sides, prevents piece phenomenon, The qualification rate of welding can be improved.

2, the guide groove of inverted triangle is used in the utility model, for rounded corner, the cross-sectional area of inverted triangle wants small, Excessive solder will not be accommodated and lead to fin corrode phenomenon；The guide groove processing of inverted triangle is also more convenient, can pass through punching press one Secondary molding, it is more convenient to process for rounded corner.

3, the second guide groove is provided in the utility model on flat tube, second guide groove is in contact with first guide groove And it is arranged in a mutually vertical manner, even if the solder in the first guide groove is excessive, also can through capillary action be directed at excessive solder In second guide groove, avoid generating fin corrode phenomenon.

4, it further is provided with limit card block in the starting point of fin and clearing end in the utility model, avoided because of collection Redundant brazing filler metal at flow tube is guided to the fin corrode caused at fin.

5, it is combined by a variety of complementary structures, on the basis of reinforcing fin strength and solder yield, also Fin corrode is not generated and can guarantee, and there is excellent market application prospect.

Detailed description of the invention

The present invention will be further described with reference to the accompanying drawings and examples.

Fig. 1 is the structural schematic diagram of the preferred embodiment of the utility model；

Fig. 2 is the enlarged diagram of fin in the preferred embodiment of the utility model；

Fig. 3 is the side view of flat tube in the preferred embodiment of the utility model；

Fig. 4 is the strabismus sectional view of the preferred embodiment of the utility model；

In figure: 1- condenser, the first header of 11-, 111- import, 112- outlet, 113- first partition, 114- second every Plate, the second header of 12-, 121- third partition, 13- flat tube, 131- runner, 132- convex ribs, the second guide groove of 133-, 134- limit Fixture block, 14- fin, the first guide groove of 141-, 15- installation sheet, the starting point a-, b- clearing end.

Specific embodiment

The utility model is described in further detail presently in connection with drawings and examples, these attached drawings are simplified Schematic diagram only illustrates the basic structure of the utility model in a schematic way, therefore it only shows structure related with the utility model At the quantity such as flat tube, fin, runner for illustrating in figure are not actual quantity.

Specific structure is as shown in Figs 1-4, is a kind of dropping-prevention piece flat flow automobile condenser 1 of the utility model, comprising: First header 11, the second header 12, flat tube 13 and fin 14, first header 11 and the second header 12 are relatively flat Row setting, is connected with several flat tubes disposed in parallel 13 between first header 11 and the second header 12, and adjacent two Fin 14 is provided between root flat tube 13；The repetitive unit of the fin 14 is trapezoidal shape, the trapezoidal top setting Have several the first guide grooves of inverted triangle shape 141, the starting point a and clearing end b of the fin 14 not with first header 11, The contact of two headers 12；It is provided with several cylindric runners 131 in the flat tube 13, divides on two flat horizontal surfaces of the flat tube 13 Not axial to be provided with two convex ribs 132, the flat tube 13 is additionally provided with inverted triangle shape second in the bottom of 132 opposite side of convex ribs Guide groove 133, the starting point a of the convex ribs 132, the starting point a of second guide groove 133 and clearing end b and the fin 14 and The position clearing end b is corresponding.

Specifically, being additionally provided with limit card block 134 on the flat tube 13, the position of the limit card block 134 is set to institute At the starting point a and clearing end b for stating convex ribs 132, the second guide groove 133.

More specifically, the distance between two convex ribs 132 are equal to the width of fin 14.

More specifically, import 111 and outlet 112 are additionally provided on first header 11.First header 11 First partition 113 and second partition 114, center in second header 12 are provided between inherent import 111 and outlet 112 Place is provided with third partition 121.Also, the two sides of first header 11 and second header 12 are provided with installation sheet 15。

More specifically, the trapezoidal top is arranged in parallel with three the first guide grooves of inverted triangle shape 141, first guide groove The depth of inverted triangle is 0.5 times of 14 thickness of fin in 141.

More specifically, the depth of second guide groove 133 is identical as the depth of first guide groove 141.

It is above enlightenment according to the desirable embodiment of the utility model, through the above description, related personnel is complete Various changes and amendments can be carried out in the range of without departing from the utility model technical idea.This item utility model Technical scope is not limited to the contents of the specification, it is necessary to be determined the technical scope according to the scope of the claims.

Claims (8)

1. a kind of dropping-prevention piece flat flow automobile condenser, comprising: the first header, the second header, flat tube and fin, feature Be: first header and the second header are arranged in parallel, and are connected between first header and the second header Several flat tubes disposed in parallel are provided with fin between two adjacent flat tubes；

The repetitive unit of the fin is trapezoidal shape, and trapezoidal top is provided with several the first guide grooves of inverted triangle shape, fin Starting point and clearing end do not contacted with first header, the second header；

Be provided with several cylindric runners in the flat tube, on two flat horizontal surfaces of the flat tube respectively it is axial be provided with two it is convex Muscle, the flat tube are additionally provided with the second guide groove of inverted triangle shape, the convex ribs, second guide groove in the bottom of convex ribs opposite side Starting point and clearing end and the starting point of the fin and to terminate end position corresponding.

2. dropping-prevention piece flat flow automobile condenser as described in claim 1, it is characterised in that: the distance between two convex ribs are equal to The width of fin.

3. dropping-prevention piece flat flow automobile condenser as described in claim 1, it is characterised in that: be additionally provided with limiting card on flat tube Block, the position of the limit card block are set at the convex ribs, the starting point of the second guide groove and clearing end.

4. dropping-prevention piece flat flow automobile condenser as described in claim 1, it is characterised in that: be additionally provided on the first header into Mouth and outlet.

5. dropping-prevention piece flat flow automobile condenser as claimed in claim 4, it is characterised in that: in import and out in the first header It is provided with first partition and second partition between mouthful, is provided with third partition at center in second header.

6. dropping-prevention piece flat flow automobile condenser as described in claim 1, it is characterised in that: the first header and second collection The two sides of flow tube are provided with installation sheet.

7. dropping-prevention piece flat flow automobile condenser as described in claim 1, it is characterised in that: trapezoidal top is arranged in parallel with three The first guide groove of item, the depth of inverted triangle is 0.5 times -1 times of the fin thickness in first guide groove.

8. dropping-prevention piece flat flow automobile condenser as claimed in claim 7, it is characterised in that: the depth of the second guide groove is led with first The depth of slot is identical.