CN209578610U - Impeller inner ring welding fixture - Google Patents
Impeller inner ring welding fixture Download PDFInfo
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- CN209578610U CN209578610U CN201920162031.5U CN201920162031U CN209578610U CN 209578610 U CN209578610 U CN 209578610U CN 201920162031 U CN201920162031 U CN 201920162031U CN 209578610 U CN209578610 U CN 209578610U
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- welding
- cover plate
- heat conducting
- impeller
- conducting cover
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Abstract
The utility model discloses a kind of impeller inner ring welding fixtures, including welding pedestal and heat conducting cover plate；One surface of the welding pedestal is equipped with positioning column；The surface cover that the heat conducting cover plate can be equipped with the positioning column with the welding pedestal is closed, it is surrounded between the heat conducting cover plate and the welding pedestal and is formed with impeller accommodating chamber, the side wall of the heat conducting cover plate is equipped with multiple vacancy sections, the heat conducting cover plate position opposite with the positioning column is equipped with welding connecting hole, and the vacancy section and the welding connecting hole are connected with the impeller accommodating chamber；So when being welded to impeller, impeller can be placed on positioning column and be fixed, then it is covered surely by heat conducting cover plate, assembly crewman can carry out inner ring welding to impeller by welding connecting hole at this time, and welding the heat generated will be passed in air by heat conducting cover plate absorption, to avoid leading to demagnetization phenomenon occur because welding generates high temperature.
Description
Technical field
The utility model relates to the technical solution in ventricular assist device assembling field, in particular to a kind of impeller inner ring welding
Fixture.
Background technique
The current mainstream technology in ventricular assist device field is so that impeller is suspended in cavity rotation using magnetic suspension, in order to
It realizes magnetic suspension, needs to be packed into magnet in impeller internal, magnet cap is then lived in into capable welding with cover board, so that magnet is sealed in
Impeller internal.
But since during welding to impeller inner ring, the magnetism of magnet can be influenced by high temperature, so working as temperature
When beyond a certain range (temperature resistant grade of different magnet is different, differs at 50 DEG C to 300 DEG C), magnet will demagnetization, thus
Very big puzzlement is brought for the assembling of impeller.
Utility model content
The purpose of this utility model is to provide a kind of impeller inner ring welding fixtures, to solve the prior art to impeller inner ring
The problem of welding is easy to appear demagnetization phenomenon.
In order to solve the above-mentioned technical problem, the utility model provides a kind of impeller inner ring welding fixture, including, weld bottom
One surface of seat, the welding pedestal is equipped with positioning column；And heat conducting cover plate, the heat conducting cover plate can be set with the welding pedestal
There is the surface cover of the positioning column to close, is surrounded between the heat conducting cover plate and the welding pedestal and be formed with impeller accommodating chamber, institute
The side wall for stating heat conducting cover plate is equipped with multiple vacancy sections, and it is logical that the heat conducting cover plate position opposite with the positioning column is equipped with welding
Hole, the vacancy section and the welding connecting hole are connected with the impeller accommodating chamber.
Wherein, the positioning column is equipped with heat release hole, and the heat release hole penetrates through the positioning column.
Wherein, the section of the heat release hole is meander-like.
Wherein, the surface of the heat conducting cover plate towards the welding pedestal is equipped with more radiating ribs, the more radiating ribs
Around all then arrangeds of the heat conducting cover plate, the vacancy section is formed between every two radiating ribs.
Wherein, the heat conducting cover plate is equipped with installation through-hole, and the installation through-hole penetrates through two opposite tables of the heat conducting cover plate
Face, the installation through-hole is interior to be equipped with bolt；The welding pedestal is equipped with threaded hole, the spiral shell at place opposite with the installation through-hole
Bolt is threadedly coupled with the threaded hole.
Wherein, the material of the welding pedestal is copper alloy or aluminium alloy.
Wherein, the material of the heat conducting cover plate is copper alloy or aluminium alloy.
Wherein, the welding connecting hole is bellmouth, and the narrow end of the welding connecting hole is arranged close to the impeller accommodating chamber.
The beneficial effects of the utility model are as follows:
Since a surface of the welding pedestal is equipped with positioning column, the heat conducting cover plate can be equipped with institute with the welding pedestal
The surface cover for stating positioning column is closed, and is surrounded between the heat conducting cover plate and the welding pedestal and is formed with impeller accommodating chamber, so
When welding to impeller, impeller can be placed on positioning column and be fixed, then be covered surely by heat conducting cover plate；
At this time again since the heat conducting cover plate position opposite with the positioning column is equipped with welding connecting hole, so assembly crewman can pass through
Welding connecting hole carries out inner ring welding to impeller, and welding the heat generated will be passed in air by heat conducting cover plate absorption,
To avoid leading to demagnetization phenomenon occur because welding generates high temperature.
Detailed description of the invention
It, below will be to attached needed in embodiment in order to illustrate more clearly of the technical solution of the utility model
Figure is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the utility model, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the dismantling status architecture schematic diagram that the utility model impeller inner ring welding fixture preferred embodiment provides；
Fig. 2 is the assembled state structural schematic diagram that the utility model impeller inner ring welding fixture preferred embodiment provides.
Appended drawing reference is as follows:
1, pedestal is welded；11, positioning column；12, heat release hole；13, threaded hole；
2, heat conducting cover plate；21, vacancy section；22, welding connecting hole；23, radiating ribs；24, installation through-hole；25, bolt；
3, impeller；31, mesoporous.
Specific embodiment
Below in conjunction with the attached drawing in the utility model embodiment, to the technical solution in the utility model embodiment
It is clearly and completely described.
From Fig. 1 to Fig. 2 it is found that impeller inner ring welding fixture described in the utility model embodiment, including, pedestal 1 is welded,
One surface of the welding pedestal 1 is equipped with positioning column 11；And heat conducting cover plate 2, the heat conducting cover plate 2 can be with the welding pedestals
1 surface cover for being equipped with the positioning column 11 is closed, and is surrounded between the heat conducting cover plate 2 and the welding pedestal 1 and is formed with impeller appearance
Chamber of receiving (is placed in the space of welding pedestal 1 and the encirclement of heat conducting cover plate 2, therefore impeller accommodating chamber is not in the drawings because of impeller accommodating chamber
Show), the side wall of the heat conducting cover plate 2 is equipped with multiple vacancy sections 21, the heat conducting cover plate 2 portion opposite with the positioning column 11
Position is equipped with welding connecting hole 22, and the vacancy section 21 and the welding connecting hole 22 are connected with the impeller accommodating chamber.
When being applied, can by positioning column 11 pass through impeller 3 mesoporous 31 (welding position is hollow 31 close
The position of welding connecting hole 22), to realize the location and installation of impeller 3, heat conducting cover plate 2 and welding pedestal 1 are then subjected to lid conjunction, with
Impeller 3 is set to be fixed in impeller accommodating chamber；3 inner ring of impeller needs the position welded will be in welding connecting hole 22 at this time
Appear, so that inner ring of the assembly crewman to impeller 3 welds；Since heat conducting cover plate 2 can be abutted with impeller 3, so impeller 3 welds
The heat generated when connecing will be transferred in heat conducting cover plate 2, and heat conducting cover plate 2 is avoided and being transferred to heat in air rapidly
3 temperature of impeller is excessively high, and the setting of vacancy section 21 can also accelerate scattering and disappearing for 3 heat of impeller, to avoided conscientiously because of welding
Generating high temperature leads to demagnetization phenomenon occur.
It may be noted that welding pedestal 1 and heat conducting cover plate 2 for fixing impeller 3, are held as long as being capable of forming impeller between the two
Chamber of receiving carries out location and installation to impeller 3, i.e., is not intended to limit to the shape of welding pedestal 1 and heat conducting cover plate 2；But in order to mention
High cooling efficiency and reduce fixture volume, as shown in Figure 1, can will welding pedestal 1 and heat conducting cover plate 2 be set as and 3 shape of impeller
The size of the circular configuration to match, welding pedestal 1 and heat conducting cover plate 2 surround at this time impeller accommodating chamber and impeller 3 matches,
It ensure that welding pedestal 1 and heat conducting cover plate 2 can be bonded abutting with impeller 3, not only make heat transfer more rapid, also avoid
Fixture volume is excessive.
Preferably, positioning column 11 is used to fix the installation site of impeller 3, but due to positioning column 11 also can by with impeller 3
It contacts and radiates, so in order to improve the radiating efficiency to impeller 3, it can be real by increasing the heat dissipation area of positioning column 11
This existing purpose, as shown in Figure 1, a kind of preferred embodiment, which can be the positioning column 11, is equipped with heat release hole 12, it is described to dissipate
Hot hole 12 penetrates through the positioning column 11.
The inside of positioning column 11 becomes hollow structure at this time, not only the hole wall of heat release hole 12 can serve as radiating surface carry out it is scattered
Heat, and the hollow structure of positioning column 11 is also convenient for air circulation, and the heat that welding process is generated passes through heat release hole
12 are expelled to outside, to substantially increase radiating efficiency.
Preferably, the area of 12 inner wall of heat release hole is the main heat sink area of positioning column 11, so in order to further increase
The radiating efficiency of positioning column 11 can be realized by further increasing the area of 12 inner wall of heat release hole, as shown in Figure 1, a kind of excellent
The section that the embodiment of choosing can be the heat release hole 12 is meander-like.
It may be noted that the section of heat release hole 12 is that meander-like refers to that the section of heat release hole 12 has many places concaveconvex structure, such as
Five-pointed star, hexagon or flower-shape shown in FIG. 1 etc., compared to general circular hole, such mode enables to dissipating for heat release hole 12
Heat area is significantly increased, to obtain the heat dissipation effect for being much better than circular hole.
Preferably, vacancy section 21 can be formed by punching in the side wall of heat conducting cover plate 2, but thermally conductive in order to further increase
The radiating efficiency of cover board 2 can be used to the side of vacancy section 21, as shown in Figure 1, a kind of preferred embodiment can be with
Being the heat conducting cover plate 2 is equipped with more radiating ribs 23 towards the surface of the welding pedestal 1, and the more radiating ribs 23 surround institute
All then arrangeds of heat conducting cover plate 2 are stated, form the vacancy section 21 between every two radiating ribs 23.
Vacancy section 21 can be used in accelerating air circulation at this time, and to improve radiating efficiency, and radiating ribs 23 can then pass through
Increase heat dissipation area and improve radiating efficiency, by being carried out while two kinds of radiating modes, so that heat conducting cover plate 2 is by limited
Design space obtains more preferably heat dissipation effect；And compared to the processing method for forming vacancy section 21 by punching, setting heat dissipation
The processing method that muscle 23 forms vacancy section 21 is more simple and convenient, also provides help to reduce production cost.
Wherein, radiating ribs 23 can also be appropriately extended toward the inside of impeller accommodating chamber, by radiating ribs 23 and impeller 3 into
Row contact, so that radiating ribs 23 draw heat can be discharged faster.
Preferably, it realizes heat conducting cover plate 2 and welds pedestal 1 and multiplicity there are many fixed modes is installed, as shown in Figure 1, one
Kind preferred embodiment can be the heat conducting cover plate 2 equipped with installation through-hole 24, and the installation through-hole 24 penetrates through described thermally conductive
Two opposite surfaces of cover board 2, the installation through-hole 24 is interior to be equipped with bolt 25；The welding pedestal 1 with the installation through-hole 24
Opposite place is equipped with threaded hole 13, and the bolt 25 is threadedly coupled with the threaded hole 13.
After impeller 3, which is placed into, to be fixed on positioning column 11, heat conducting cover plate 2 and the welding lid of pedestal 1 can be closed,
Then bolt 25 is screwed into threaded hole 13, can realizes gripping to impeller 3；Similarly, need to remove impeller 3 when
It waits, as long as bolt 25 is unscrewed, heat conducting cover plate 2 can be separated with welding pedestal 1, in order to take out impeller 3；Such fixation side
Formula is not only simple and convenient, and can tighten dynamics control to the chucking power of impeller 4, even if impeller by adjusting bolt 25
3 sizes are excessive there are deviation, can also guarantee to provide suitable chucking power to impeller 3.
Preferably, welding pedestal 1 with impeller 3 due to can directly be contacted, so using the preferable material of heating conduction
Production welding pedestal 1 can provide safeguard for radiating efficiency, and a kind of preferred embodiment can be the material of the welding pedestal 1
Matter is copper alloy or aluminium alloy.
Copper alloy and aluminium alloy have preferable heating conduction, so welding pedestal 1 is made using copper alloy or aluminium alloy
It can guarantee that the transmitting of heat is dissipated rapidly, and copper alloy and aluminium alloy all have preferably combustion hot property, it is not easy to because
The high temperature of welding and generate variation, more can for welding pedestal 1 service life provide a strong guarantee.
Preferably, heat conducting cover plate 2 with impeller 3 due to can directly be contacted, so using the preferable material of heating conduction
Production heat conducting cover plate 2 can provide safeguard for radiating efficiency, and a kind of preferred embodiment can be the material of the heat conducting cover plate 2
Matter is copper alloy or aluminium alloy.
Copper alloy and aluminium alloy have preferable heating conduction, so heat conducting cover plate 2 is made using copper alloy or aluminium alloy
It can guarantee that the transmitting of heat is dissipated rapidly, and copper alloy and aluminium alloy all have preferably combustion hot property, it is not easy to because
The high temperature of welding and generate variation, can more be provided a strong guarantee for the service life of heat conducting cover plate 2.
Preferably, since welding process needs to carry out in welding connecting hole 22, so can welding connecting hole 22 carry out rapidly
Heat dissipation is particularly important, as shown in Figure 1, it is bellmouth, institute that a kind of preferred embodiment, which can be the welding connecting hole 22,
The narrow end for stating welding connecting hole 22 is arranged close to the impeller accommodating chamber.
It is shown reference by location with Fig. 1, the upper end of welding connecting hole 22 is wide at this time, lower end is small, and this structure is not only able to just
Enter in welding connecting hole 22 in soldering appliance and be subjected to, and relative to cylindrical through-hole, the wall surface of the hole of bellmouth
Product essence is to be increased, to increase the heat dissipation area of welding connecting hole 22, the heat that welding is generated is able to fast
Speed dissipates.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these are improved and profit
Decorations are also considered as the protection scope of the utility model.
Claims (8)
1. a kind of impeller inner ring welding fixture, which is characterized in that including,
Pedestal is welded, a surface of the welding pedestal is equipped with positioning column；
And heat conducting cover plate, the surface cover that the heat conducting cover plate can be equipped with the positioning column with the welding pedestal is closed, described to lead
It is surrounded between hot cover board and the welding pedestal and is formed with impeller accommodating chamber, the side wall of the heat conducting cover plate is equipped with multiple hollow outs
Area, the heat conducting cover plate position opposite with the positioning column are equipped with welding connecting hole, and the vacancy section and the welding connecting hole are equal
It is connected with the impeller accommodating chamber.
2. impeller inner ring welding fixture according to claim 1, which is characterized in that the positioning column is equipped with heat release hole,
The heat release hole penetrates through the positioning column.
3. impeller inner ring welding fixture according to claim 2, which is characterized in that the section of the heat release hole is complications
Shape.
4. impeller inner ring welding fixture according to claim 1, which is characterized in that the heat conducting cover plate is towards the welding
The surface of pedestal is equipped with more radiating ribs, more radiating ribs around the heat conducting cover plate week then arranged, every two
The vacancy section is formed between the radiating ribs.
5. impeller inner ring welding fixture according to claim 1, which is characterized in that
The heat conducting cover plate is equipped with installation through-hole, and the installation through-hole penetrates through two opposite surfaces of the heat conducting cover plate, the peace
It fills and is equipped with bolt in through-hole；
The welding pedestal is equipped with threaded hole at place opposite with the installation through-hole, and the bolt and the threaded hole screw thread connect
It connects.
6. impeller inner ring welding fixture according to claim 1, which is characterized in that the material of the welding pedestal is copper conjunction
Gold or aluminium alloy.
7. impeller inner ring welding fixture according to claim 1, which is characterized in that the material of the heat conducting cover plate is copper conjunction
Gold or aluminium alloy.
8. impeller inner ring welding fixture according to claim 1, which is characterized in that the welding connecting hole is bellmouth, described
The narrow end of welding connecting hole is arranged close to the impeller accommodating chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920162031.5U CN209578610U (en) | 2019-01-29 | 2019-01-29 | Impeller inner ring welding fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920162031.5U CN209578610U (en) | 2019-01-29 | 2019-01-29 | Impeller inner ring welding fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209578610U true CN209578610U (en) | 2019-11-05 |
Family
ID=68381553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920162031.5U Active CN209578610U (en) | 2019-01-29 | 2019-01-29 | Impeller inner ring welding fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209578610U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113732583A (en) * | 2021-10-21 | 2021-12-03 | 西安航天动力研究所 | Welding auxiliary assembly and welding method for sensitive element of temperature sensor |
-
2019
- 2019-01-29 CN CN201920162031.5U patent/CN209578610U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113732583A (en) * | 2021-10-21 | 2021-12-03 | 西安航天动力研究所 | Welding auxiliary assembly and welding method for sensitive element of temperature sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518000 1601, building D3, Nanshan Zhiyuan, No. 1001, Xueyuan Avenue, Changyuan community, Taoyuan Street, Nanshan District, Shenzhen, Guangdong Patentee after: Shenzhen Core Medical Technology Co.,Ltd. Address before: 518000 room 1106, Pioneer Park, Lishan road University Town, Taoyuan Street, Nanshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN CORE MEDICAL TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address |