CN202228823U - Connection tube, pipeline connection structure and dehumidifier - Google Patents
Connection tube, pipeline connection structure and dehumidifier Download PDFInfo
- Publication number
- CN202228823U CN202228823U CN2011203835423U CN201120383542U CN202228823U CN 202228823 U CN202228823 U CN 202228823U CN 2011203835423 U CN2011203835423 U CN 2011203835423U CN 201120383542 U CN201120383542 U CN 201120383542U CN 202228823 U CN202228823 U CN 202228823U
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- China
- Prior art keywords
- section
- pipeline
- connecting tube
- reducing section
- shaped pipe
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- Expired - Lifetime
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Abstract
The utility model provides a connection tube, a pipeline connection structure and a humidifier. The connection tube comprises a middle tube section (10), a first connection tube section (20) and a second connection tube section, wherein the first connection tube section and the second connection tube section are respectively arranged at two ends of the middle tube section. The first connection tube section comprises a first throat necking down section (21) arranged at the outmost end, a second necking down section (22) arranged between the first necking down section (21) and the middle tube section (10), and the diameter of the section necking down section (22) is smaller than that of the middle tube section (10) and larger than that of the first necking down section (21). The connection tube effectively solves the problem that a cup-shaped horn mouth of a U-shaped tube in the prior art is easy to crack and deform.
Description
Technical field
The utility model relates to pipeline interconnection technique field, in particular to a kind of connecting tube, pipeline jointing construction and dehumidifier.
Background technique
Fig. 1 shows connecting tube of the prior art and is connected the schematic representation that cooperates with the U-shaped pipe of fin-tube heat exchanger, and Fig. 2 shows the A place partial enlarged drawing of Fig. 1.In conjunction with referring to Fig. 1 to Fig. 2, the weld into and out of tracheae (U-shaped pipe 2 ') and connecting tube 1 ' of dehumidifier fin-tube heat exchanger of the prior art adopts a reducing.U-shaped pipe 2 ' expands the cup-shaped horn mouth earlier with the cooperation place of the reducing section 20 ' of connecting tube 1 ', and like this, the enlarging expand tube makes that the wall thickness at horn mouth place is quite thin.
And having side plate, do not fix by the heat exchanger of dehumidifier; U-shaped pipe 2 ' cup-shaped horn mouth place causes strength weak because of wall thickness, welding reason such as be heated; Heat exchanger is prone to rock in assembling, check, transportation, running, easy to crack, the distortion in the cup-shaped horn mouth place of U-shaped pipe, and then cause freezing medium leakage.
The model utility content
The utility model aims to provide a kind of connecting tube, pipeline jointing construction and dehumidifier, the problem of, distortion easy to crack with the cup-shaped horn mouth place that solves U-shaped pipe in the existing technology.
To achieve these goals; An aspect according to the utility model; Provide connecting tube to comprise: middle pipeline section with lay respectively in the middle of first being connected pipeline section and being connected pipeline section of pipeline section two ends with second, the first connection pipeline section comprises: the first reducing section is positioned at outermost end; The second reducing section, between the first reducing section and middle pipeline section, the diameter of the second reducing section is less than the diameter of middle pipeline section and greater than the diameter of the first reducing section.
Further, also be connected with the first awl section between the first reducing section and the second reducing section.
Further, also be connected with the second awl section between the second reducing section and the middle pipeline section.
Further, the length of the first reducing section is greater than the length of the second reducing section.
According to the utility model on the other hand, a kind of pipeline jointing construction is provided, has comprised the U-shaped pipe and the connecting tube that is inserted in the U-shaped pipe of fin-tube heat exchanger, connecting tube is above-mentioned connecting tube.
Further, the external diameter of the first reducing section of connecting tube is than the little 0.04mm to 0.20mm of internal diameter of the correspondent section of the U-shaped pipe that is mated.
Further, the external diameter of the second reducing section of connecting tube is than the little 0.04mm to 0.20mm of internal diameter of the correspondent section of the U-shaped pipe that is mated.
Further, the length sum of the second reducing section of the length of the first reducing section of connecting tube and connecting tube is stretched out the outer length of fin of fin-tube heat exchanger greater than the U-shaped pipe.
According to the utility model on the other hand, a kind of dehumidifier is provided, has comprised pipeline jointing construction, pipeline jointing construction is above-mentioned pipeline jointing construction.
Use the technological scheme of the utility model; On the basis of the second reducing section of existing technology, increased by the first reducing section, like this, increased the degree of depth that connecting tube is inserted into the U-shaped pipe; Reduced the pressure at the cup-shaped horn mouth place of U-shaped pipe effectively; Like this, the cup-shaped horn mouth place of U-shaped pipe is not easy to produce distortion and cracking, and the cup-shaped horn mouth place of U-shaped pipe in the existing technology is easy to crack, the problem of distortion thereby solved effectively.
Description of drawings
The Figure of description that constitutes the application's a part is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 shows connecting tube of the prior art and is connected the schematic representation that cooperates with the U-shaped pipe;
Fig. 2 shows the A place partial enlarged drawing of Fig. 1;
Fig. 3 shows the schematic side view according to the embodiment of the connecting tube of the utility model;
The master that Fig. 4 shows the connecting tube among Fig. 3 looks schematic representation;
Fig. 5 shows the schematic side view according to the embodiment of the pipeline jointing construction of the utility model;
Fig. 6 shows the local enlarged diagram in B place of the pipeline jointing construction of Fig. 5; And
Fig. 7 shows the schematic representation that cooperates that is connected of U-shaped pipe and dehumidifier fin.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the utility model.
Fig. 3 shows the schematic side view according to the embodiment of the connecting tube of the utility model, and the master that Fig. 4 shows the connecting tube among Fig. 3 looks schematic representation.In conjunction with referring to Fig. 3 to Fig. 4; As can be seen from the figure; The connecting tube of present embodiment comprises: middle pipeline section 10 with lay respectively in the middle of first being connected pipeline section 20 and being connected pipeline section of pipeline section two ends with second, the first connection pipeline section comprises: the first reducing section 21 and the second reducing section 22, wherein; This first reducing section 21 is positioned at outermost end; The second reducing section 22 is between the first reducing section 21 and middle pipeline section 10, and the diameter of the second reducing section 22 is less than the diameter of middle pipeline section 10 and greater than the diameter of the first reducing section 21.
In conjunction with referring to Fig. 2 and Fig. 5, U-shaped pipe 2 ' cup-shaped horn mouth place stressed is F1 ' when the connecting tube 1 ' of existing technology receives a power F ' who makes progress.The stressed of U-shaped pipe 2 cup-shaped horn mouth places is F1 when the connecting tube 1 of present embodiment receives a power F who makes progress.Wherein, when F '=F, F1 '=F1; (P is a pressure according to mechanics formula P=F/S again; F is stressed size, and S is a lifting surface area) can know that the pressure at the U-shaped pipe 2 cup-shaped horn mouth places of present embodiment is significantly less than the pressure of existing technology; Thereby, solved effectively that the cup-shaped horn mouth place of U-shaped pipe in the existing technology is easy to crack, the problem of distortion.
Preferably, also be connected with between the first reducing section 21 and the second reducing section 22 and also be connected with the second awl section 24 between the first awl section, 23, the second reducing sections 22 and the middle pipeline section 10.On the one hand, the first awl section, 23 and second awl sections 24 is processed win reducing section 21 and the second reducing section 22 more easily, on the other hand; The awl section makes to win and seamlessly transits between reducing section 21, the second reducing section 22 and the middle pipeline section 10; The breaking strain that effectively avoiding suddenlys change causes, in addition, for for connecting tube that the heat exchanger of dehumidifier is connected; Seamlessly transit and help flowing of refrigeration agent, can reduce refrigeration agent mobile resistance in pipe.
The length of the first reducing section 21 and the second reducing section 22 can be adjusted according to size, the setting type of U-shaped pipe.Preferably, the length of the first reducing section 21 is greater than the length of the second reducing section 22.
Fig. 5 shows the schematic side view according to the embodiment of the pipeline jointing construction of the utility model, and Fig. 6 shows the local enlarged diagram in B place of the pipeline jointing construction of Fig. 5.In conjunction with referring to Fig. 5 and Fig. 6, as can be seen from the figure, the pipeline jointing construction of present embodiment comprises the U-shaped pipe 2 and the connecting tube 1 that is inserted in the U-shaped pipe 2 of fin-tube heat exchanger, and connecting tube 1 is above-mentioned connecting tube.The pipeline jointing construction of present embodiment connects stable, and its place of being welded to connect is difficult for deforming or ftractureing.
Preferably, the external diameter of the first reducing section 21 of connecting tube 1 is than the little 0.04mm to 0.2mm of internal diameter of the correspondent section of the U-shaped pipe that is mated.The external diameter of the second reducing section 22 of connecting tube 1 is than the little 0.04mm to 0.2mm of internal diameter of the correspondent section of the U-shaped pipe that is mated.The gap of above-mentioned 0.04mm to 0.2mm is in order to guarantee that the first reducing section and the second reducing section can insert in the U-shaped pipe smoothly, and it is excessive to be unlikely to insert the back matching gap again.
As shown in Figure 7; Preferably; The length sum of the second reducing section 22 of the length of the first reducing section 21 of connecting tube 1 and connecting tube 1 is stretched out the outer length h of fin of fin-tube heat exchanger greater than U-shaped pipe 2; The h value is the distance of U-shaped pipe nose end to the fin place; Just the U-shaped pipe is stayed the outer length of fin, and the length sum of the length of the first reducing section 21 and the second reducing section 22 is in order to guarantee that connecting tube 1 is inserted in the U-shaped pipe in the fin scope, can utilize fin to cushion the stress deformation of connecting tube 1 greater than the h value.
The utility model also provides a kind of dehumidifier, comprises pipeline jointing construction, and pipeline jointing construction is above-mentioned pipeline jointing construction.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (9)
1. connecting tube comprises:
Middle pipeline section (10) with lay respectively at pipeline section (10) two ends, said centre first be connected pipeline section (20) and be connected pipeline section with second,
It is characterized in that said first connects pipeline section comprises:
The first reducing section (21) is positioned at outermost end;
The second reducing section (22), be positioned at the said first reducing section (21) and said in the middle of between pipeline section (10), the diameter of the said second reducing section (22) is less than the diameter of pipeline section (10) in the middle of said and greater than the diameter of the said first reducing section (21).
2. connecting tube according to claim 1 is characterized in that, also is connected with the first awl section (23) between said first reducing section (21) and the said second reducing section (22).
3. connecting tube according to claim 1 and 2 is characterized in that, also is connected with the second awl section (24) between said second reducing section (22) and the said middle pipeline section (10).
4. connecting tube according to claim 3 is characterized in that, the length of the said first reducing section (21) is greater than the length of the said second reducing section (22).
5. a pipeline jointing construction comprises the U-shaped pipe (2) of fin-tube heat exchanger and is inserted into the connecting tube (1) in the said U-shaped pipe (2), it is characterized in that said connecting tube (1) is each described connecting tube in the claim 1 to 4.
6. pipeline jointing construction according to claim 5 is characterized in that, the external diameter of the first reducing section (21) of said connecting tube (1) is than the little 0.04mm to 0.20mm of internal diameter of the correspondent section of the said U-shaped pipe that is mated.
7. according to claim 5 or 6 described pipeline jointing constructions, it is characterized in that the external diameter of the second reducing section (22) of said connecting tube (1) is than the little 0.04mm to 0.20mm of internal diameter of the correspondent section of the said U-shaped pipe that is mated.
8. pipeline jointing construction according to claim 7; It is characterized in that the length sum of the length of the first reducing section (21) of said connecting tube (1) and the second reducing section (22) of said connecting tube (1) is stretched out the outer length (h) of fin of fin-tube heat exchanger greater than said U-shaped pipe (2).
9. a dehumidifier comprises pipeline jointing construction, it is characterized in that, said pipeline jointing construction is each described pipeline jointing construction in the claim 5 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203835423U CN202228823U (en) | 2011-10-10 | 2011-10-10 | Connection tube, pipeline connection structure and dehumidifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203835423U CN202228823U (en) | 2011-10-10 | 2011-10-10 | Connection tube, pipeline connection structure and dehumidifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202228823U true CN202228823U (en) | 2012-05-23 |
Family
ID=46079409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203835423U Expired - Lifetime CN202228823U (en) | 2011-10-10 | 2011-10-10 | Connection tube, pipeline connection structure and dehumidifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202228823U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033085A (en) * | 2011-10-10 | 2013-04-10 | 珠海格力电器股份有限公司 | Connection pipe, pipe line connection structure and dehumidifier |
| CN103982953A (en) * | 2014-05-14 | 2014-08-13 | 李静 | Indoor and outdoor unit connection pipe for splitting type heat pump and refrigeration equipment |
| CN108443625A (en) * | 2018-05-23 | 2018-08-24 | 格力电器（合肥）有限公司 | A kind of pipeline jointing construction and a kind of air-conditioning |
-
2011
- 2011-10-10 CN CN2011203835423U patent/CN202228823U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033085A (en) * | 2011-10-10 | 2013-04-10 | 珠海格力电器股份有限公司 | Connection pipe, pipe line connection structure and dehumidifier |
| CN103982953A (en) * | 2014-05-14 | 2014-08-13 | 李静 | Indoor and outdoor unit connection pipe for splitting type heat pump and refrigeration equipment |
| CN108443625A (en) * | 2018-05-23 | 2018-08-24 | 格力电器（合肥）有限公司 | A kind of pipeline jointing construction and a kind of air-conditioning |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120523 |
|
| CX01 | Expiry of patent term |