CN1277668A

CN1277668A - Evaporator

Info

Publication number: CN1277668A
Application number: CN98810558A
Authority: CN
Inventors: A·朗
Original assignee: Bosch Siemens Hausgerate GmbH
Current assignee: BSH Hausgeraete GmbH
Priority date: 1997-11-11
Filing date: 1998-11-09
Publication date: 2000-12-20
Anticipated expiration: 2018-11-09
Also published as: EP1031002A1; RU2204091C2; CN1155789C; TR200001339T2; WO1999024770A1; PL340363A1; EP1031002B1; BR9814019A; DE29720004U1; ES2194363T3; DE59807495D1; PL186946B1

Abstract

In an evaporator with a coolant channel structure and a suction pipe interface, the suction pipe is connected to the evaporator and fluid-tightly fixed to the evaporator. The suction pipe is inserted into the suction pipe interface, and the suction pipe interface is machined to at least largely conform to the outer contour of the suction pipe through a chip-free process.

Description

Evaporator

本发明涉及带有冷却剂通道结构和吸入管接口的蒸发器，其中吸入管与蒸发器连通并流体密封地固定在蒸发器上。The invention relates to an evaporator with a coolant channel structure and a suction pipe connection, wherein the suction pipe communicates with the evaporator and is fixed on the evaporator in a fluid-tight manner.

在现有的蒸发器中，在吸入管接口处用焊接的方式将吸入管与蒸发器流体密封地连接在一起。其中采用的焊接方法是所谓的钨-惰性气体保护-焊接(Wolfram-innertgas-Schweisse)，此时特别是由于因借助于膨胀进行吸入管连接时会在蒸发器板上出现误差和材料厚度变化，所以无法将以焊接两个部件为基础焊接过程作为自动操作过程进行控制。由于用人工完成的将吸入管与蒸发器的吸入管接口焊到一起的焊接过程会因完成焊接过程的工人的原因而使焊接接头出现空隙，这些空隙的修补通常要花费昂贵的费用。In the existing evaporator, the suction pipe and the evaporator are connected together in a fluid-tight manner by welding at the interface of the suction pipe. The welding method used here is the so-called tungsten-inert gas-shield welding (Wolfram-innertgas-Schweisse), in this case especially due to tolerances and material thickness changes on the evaporator plate due to the connection of the suction pipe by means of expansion, Therefore, it is not possible to control the welding process as an automatic operation process based on the welding of two components. Since the manual welding process of welding the suction pipe to the suction pipe connection of the evaporator can cause gaps in the welded joint due to the workers performing the welding process, these gaps are usually expensive to repair.

本发明的目的是，在权利要求1前序部分所述的蒸发器中用简单的结构措施克服已有技术中的缺点，自动实现吸入管和吸入管接口之间的连接。The object of the invention is to overcome the disadvantages of the prior art with simple constructional measures in the evaporator according to the preamble of claim 1 and to automatically realize the connection between the suction pipe and the suction pipe connection.

本发明的目的是通过以下方式实现的，即，将吸入管插入吸入管接口中，并且通过无切屑加工至少在很大程度上使吸入管接口适应吸入管的外形，再通过焊接将吸入管与吸入管接口连接在一起。The object of the invention is achieved in that the suction pipe is inserted into the suction pipe connection and the suction pipe connection is at least largely adapted to the shape of the suction pipe by chip-free machining, and the suction pipe is joined to the suction pipe by welding. The suction pipe ports are connected together.

通过本发明所述的方案，在将吸入管接口与吸入管连接时工人可以自己控制自动生产过程，由于在两个部件之间形成确定和均匀的焊缝，所以通过毛细作用可以在连接口上自动地吸取将两个连接部件连在一起而需要的焊料。用这种方式可以确保吸入管接口与吸入管无缩孔缺陷并实现流体密封地相连，所以两个部件之间的连接具有较高的过程安全性。此外，通过本发明所述的方案，在吸入管和吸入管接口之间形成了成本很低但具有极高密封性的连接。Through the solution according to the invention, the worker can control the automatic production process when connecting the suction pipe interface with the suction pipe. Since a defined and uniform weld seam is formed between the two parts, it can be automatically welded on the connection port by capillary action. effectively absorbs the solder required to join the two connected parts together. In this way it is ensured that the suction line connection and the suction line are connected in a fluid-tight manner without shrinkage defects, so that the connection between the two components has a high degree of process reliability. Furthermore, the solution according to the invention produces a very cost-effective but extremely leak-tight connection between the suction line and the suction line connection.

与本发明主题相应的优选实施例设置了通过无屑加工形成的两个塑性材料变形件，所述变形件至少大致上在吸入管接口处相对。A preferred embodiment corresponding to the subject matter of the invention provides for two plastics material deformations formed by chip-free machining, said deformations at least substantially facing each other at the suction pipe connection.

因此可以用特别简单的技术和方式形成由确定的制造工艺造成的吸入管接口对吸入管外轮廓的适当限制。A suitable limitation of the suction pipe connection to the suction pipe outer contour resulting from a defined manufacturing process can thus be produced in a particularly simple manner.

要是根据本发明主题的另一个优选实施例将蒸发器板平面内的塑性材料变形件设置成使之彼此相对的话，塑性材料变形件对带有在两个彼此相连的板之间延伸的冷却剂通道结构的蒸发器带来的影响特别微小，而且对生产工艺造成的影响特别小。If, according to another preferred embodiment of the subject of the present invention, the plastics material deformations in the plane of the evaporator plates are arranged so as to face each other, the pair of plastics material deformations carries the coolant extending between the two mutually connected plates The influence brought by the evaporator of the channel structure is particularly small, and the influence on the production process is particularly small.

要是本发明主题的另一个优选实施例通过冲压形成塑性材料变形件的话，特别简单的是，例如可在铸模中形成通过无屑成型而导致的变窄的吸入管接口。If a further preferred embodiment of the subject matter of the invention forms the plastics material deformation by stamping, it is particularly simple, for example, to form the suction connection which is narrowed by chip-free forming in a mold.

如果按照本发明主题的又一个优选实施例用滚压接合(Rollbond)或Z形接合(Z-Bond)方法制做板式蒸发器的话，则可以制成特别合适的板式蒸发器。A particularly suitable plate evaporator can be produced if the plate evaporator is produced according to a further preferred embodiment of the subject matter of the invention by roll bonding (Rollbond) or Z-bond (Z-bond) method.

下面通过结合附图对实施例所作的简要说明进一步描述本发明。The present invention is further described below through a brief description of the embodiments in conjunction with the accompanying drawings.

图中所示：As shown in the figure:

图1是蒸发器的局部正视图，图中示出的区域是朝着吸入管的入口扩径的吸入管接口，Figure 1 is a partial front view of the evaporator, the area shown in the figure is the suction pipe interface that expands towards the inlet of the suction pipe,

图2是图1所示蒸发器的局部俯视图，Fig. 2 is a partial top view of the evaporator shown in Fig. 1,

图3是图2所示蒸发器的局部正视图，蒸发器上带有对流体密封地固定在与吸入管口相适应的吸入管接口中的节流管，和Fig. 3 is a partial front view of the evaporator shown in Fig. 2 with the throttle tube fixed fluid-tightly in the suction pipe connection adapted to the suction nozzle, and

图4是沿图3中剖开线III-III的局部放大的蒸发器局部图。Fig. 4 is a partially enlarged partial view of the evaporator along section line III-III in Fig. 3 .

根据图1，其示出了蒸发器板10的局部视图，蒸发器板10是通过焊接两个相同面积的薄铝板11、12构成的，在此情况下，在上述薄板中有一个通过所谓的滚压接合法(rollbond)形成的冷却剂通道13。冷却剂通道上设有吸入管接口14，该接口通过一个胀口，例如通过用滚压接合法制成的冷却剂通道13上的所谓局部扩径形成在蒸发器板10的边缘区域上，其中形成的吸入管接口14具有类似于透镜的截面。吸入管接口14设有从蒸发器板10自由端返回一定距离的深度限制件15，该深度为冷却剂通道13朝着毛细管接口14形成扩径处的长度L，而且该深度可用于插入由铝制成的毛细管16，图中仅示出了一段吸入管。在吸入管接口14中的插入深度由深度限制件15限定的吸入管16通过焊接固定在蒸发器板10上，其中在焊接工序之前，原本在扩径工序后具有椭圆截面的吸入管接口14通过冲压与吸入管16的外轮廓相适应。因此，通过用铸模构成的工件将原本具有类似透镜截面的吸入管接口14无屑加工成使之在吸入管16当前的圆形外轮廓和通过对吸入管接口14加工形成的内轮廓之间形成空气隙，所述空气隙可用于在用焊剂浸润的连接部件之间象毛细管一样地吸取为在吸入管16和吸入管接口14之间进行焊接而使用的焊料17，因此避免了在吸入管16和吸入管接口14之间的连接区域上出现收缩现象。通过借助于冲压进行的无屑加工在吸入管接口14上塑性成形出铝板11和12，其中在蒸发器板10的平面内形成塑性材料变形件。According to FIG. 1 , which shows a partial view of an evaporator plate 10 , which is constructed by welding two thin aluminum plates 11 , 12 of equal area, in this case one of the above-mentioned thin plates by means of a so-called The coolant channel 13 is formed by roll bonding. The coolant channel is provided with a suction pipe connection 14, which is formed on the edge region of the evaporator plate 10 by means of an expansion, for example by a so-called partial expansion on the coolant channel 13 produced by roll bonding, wherein The suction pipe interface 14 is formed to have a lens-like cross-section. The suction pipe interface 14 is provided with a depth limiter 15 that returns a certain distance from the free end of the evaporator plate 10. The depth is the length L of the enlarged diameter of the coolant channel 13 toward the capillary interface 14, and this depth can be used to insert The capillary 16 is made, only a section of suction pipe is shown in the figure. The suction pipe 16 whose insertion depth in the suction pipe connection 14 is limited by the depth limiter 15 is fixed on the evaporator plate 10 by welding, wherein before the welding process, the suction pipe connection 14 which originally had an elliptical cross-section after the diameter expansion process is passed through The stamping is adapted to the outer contour of the suction pipe 16 . Thus, the suction pipe connection 14 , which originally has a lens-like cross-section, is machined chip-free by means of a molded workpiece in such a way that it is formed between the current circular outer contour of the suction pipe 16 and the inner contour formed by machining the suction pipe connection 14 The air gap, which can be used to absorb the solder 17 used for soldering between the suction pipe 16 and the suction pipe connection 14 between the connection parts wetted with solder like a capillary, thus avoiding the solder 17 between the suction pipe 16 Constriction occurs in the connection area with the suction pipe connection 14 . The aluminum plates 11 and 12 are plastically formed on the suction pipe connection 14 by chip-free machining by means of stamping, wherein the plastic material deformations are formed in the plane of the evaporator plate 10 .

除了用滚压接合法生产蒸发器的实例之外，为了将吸入管16与吸入管接口14流体密封地连在一起，本发明还可以采用利用Z接合法生产的蒸发器以及盘管式蒸发器。In addition to the example of producing the evaporator by the rolling joint method, in order to connect the suction pipe 16 and the suction pipe connection 14 in a fluid-tight manner, the present invention can also use an evaporator produced by the Z-joint method and a coiled tube evaporator .

Claims

1. the vaporizer that has coolant channel structure and suction pipe interface, wherein suction pipe be communicated with vaporizer and fluid-tight be fixed on the vaporizer, it is characterized in that, suction pipe (16) is inserted in the suction pipe interface (14), and make the suction pipe interface adapt to the profile of suction pipe (16) at least to a great extent by chipless processing, again by welding with suction pipe (16) and suction pipe interface (14) fluid-tight link together.

2. vaporizer according to claim 1 is characterized in that, forms two plastic material deformable members by chipless machining, and described deformable member is located at suction pipe interface (14) at least haply relatively.

3. vaporizer according to claim 1 and 2 has a coolant channel structure of extending between two continuous plates, it is characterized in that the plastic material deformable member in the board plane of vaporizer (10) toward each other.

4. according to claim 2 or 3 described vaporizers, it is characterized in that the plastic material deformable member forms by punching press.

5. vaporizer according to claim 3 is characterized in that, plate type evaporator (10) is to form with roll extrusion bonding method or Z bonding method.