CN109099065A - Weld protective jacket and magnetic-suspension axial bearing - Google Patents
Weld protective jacket and magnetic-suspension axial bearing Download PDFInfo
- Publication number
- CN109099065A CN109099065A CN201811161084.1A CN201811161084A CN109099065A CN 109099065 A CN109099065 A CN 109099065A CN 201811161084 A CN201811161084 A CN 201811161084A CN 109099065 A CN109099065 A CN 109099065A
- Authority
- CN
- China
- Prior art keywords
- protective jacket
- magnetic
- hole
- welding protective
- cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/047—Details of housings; Mounting of active magnetic bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/0474—Active magnetic bearings for rotary movement
- F16C32/0476—Active magnetic bearings for rotary movement with active support of one degree of freedom, e.g. axial magnetic bearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electromagnets (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The present invention provides a kind of welding protective jacket and magnetic-suspension axial bearing.The welding protective jacket includes ontology (1), the cable-through hole (2) drawn for lead-out wire (11) is provided on ontology (1), the leading-out terminal side of cable-through hole (2) is provided with counterbore (3).Welding protective jacket according to the present invention, can overcome lead-out wire and when pcb board is welded and fixed solder excessively caused by electrical safety problems.
Description
Technical field
The invention belongs to technical field of bearings, and in particular to a kind of welding protective jacket and magnetic-suspension axial bearing.
Background technique
Magnetic-suspension axial bearing arrangement uses at present, and lead-out wires of coil is drawn from iron core slot, skeleton and lead-out wire kidney-shaped
Hole uses silicone filler gap, and lead-out wire is with pcb board by being welded together.
When welding lead-out wires of coil and pcb board, during scolding tin, scolding tin time length, tin amount are excessive, and tin can be along PCB
Plate and silicone filler gap, tin are easy that pad can be exceeded, and cause lead-out wire to climb electric insufficient or direct short-circuit, inside scolding tin situation and exist
Outside can not see, bearing the process of operation draw sparking, burn it is black bad.For using the welding structure of other solders,
There are similar problems.
Blind silica gel is easy foaming in dipping lacquer baking process, and subsequent handling can not clear up completely, be easy to cause axis
Hold the pollution of running environment.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that providing a kind of welding protective jacket and magnetic-suspension axial bearing, energy
Enough overcome lead-out wire and when pcb board is welded and fixed solder excessively caused by electrical safety problems.
To solve the above-mentioned problems, the present invention provides a kind of welding protective jacket, including ontology, is provided on ontology for drawing
The cable-through hole that line is drawn, the leading-out terminal side of cable-through hole is provided with counterbore.
Preferably, cable-through hole includes at least two, and counterbore includes at least two, and corresponding cable-through hole setting, two counterbores
Between by spacer portion be spaced apart.
Preferably, the interval trough for being spaced apart two counterbores is provided in spacer portion.
Preferably, it is provided with deep gouge on the ontology of counterbore back side, pillar is provided in deep gouge, cable-through hole runs through pillar.
According to another aspect of the present invention, a kind of magnetic-suspension axial bearing, including winding bobbin and pcb board are provided, also
Including above-mentioned welding protective jacket, welding protection is set between winding bobbin and pcb board, and coiling is wired on winding bobbin
Circle, coil include lead-out wire, and lead-out wire is pierced by rear and pcb board from the cable-through hole of welding protective jacket and welds.
Preferably, winding bobbin includes kidney-shaped boss, and welding protective jacket is set on kidney-shaped boss, and lead-out wire is convex from kidney-shaped
Platform enters welding protective jacket.
Preferably, when welding protective jacket includes interval trough, interval trough is corresponded on pcb board and is provided with strip hole.
Preferably, magnetic-suspension axial bearing further includes bearing iron core, and bearing iron core has mounting groove, and winding bobbin setting exists
In mounting groove, and it is located between bearing iron core and welding protective jacket.
Preferably, silica gel is filled in the gap of winding bobbin and bearing iron core.
Preferably, step groove is provided on bearing iron core, welding protection is set in step groove.
Welding protective jacket provided by the invention, including ontology are provided with the cable-through hole drawn for lead-out wire on ontology, cross line
The leading-out terminal side in hole is provided with counterbore.Counterbore can form solder accommodation space, when lead-out wire pass through cable-through hole and pcb board it
Between when being welded, solder can be flowed into counterbore, will not because solder excessively caused by solder spread toward periphery, avoid that magnetcisuspension occurs
Floating axial bearing improves the electrical safety of magnetic-suspension axial bearing because of short circuit, creepage distance deficiency problem caused by failure welding
Property.
Detailed description of the invention
Fig. 1 is the first axonometric drawing of the welding protective jacket of the embodiment of the present invention；
Fig. 2 is the second axonometric drawing of the welding protective jacket of the embodiment of the present invention；
Fig. 3 is the schematic cross-sectional view of the welding protective jacket of the embodiment of the present invention；
Fig. 4 is the schematic perspective view of the circuit board of the magnetic-suspension axial bearing of the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the bearing iron core of the magnetic-suspension axial bearing of the embodiment of the present invention；
Fig. 6 is the half section structure diagram of the bearing iron core of the magnetic-suspension axial bearing of the embodiment of the present invention；
Fig. 7 is the structural schematic diagram of the winding bobbin of the magnetic-suspension axial bearing of the embodiment of the present invention；
Fig. 8 is the half section structure diagram of the winding bobbin of the magnetic-suspension axial bearing of the embodiment of the present invention；
Fig. 9 is the assembly structure diagram of the magnetic-suspension axial bearing of the embodiment of the present invention；
Figure 10 is the half section structure diagram of the magnetic-suspension axial bearing of the embodiment of the present invention；
Figure 11 is the half-sectional structure partial enlarged drawing of the magnetic-suspension axial bearing of the embodiment of the present invention.
Appended drawing reference indicates are as follows:
1, ontology；2, cable-through hole；3, counterbore；4, spacer portion；5, interval trough；6, deep gouge；7, pillar；8, winding bobbin；9,
Pcb board；10, coil；11, lead-out wire；12, kidney-shaped boss；13, bearing iron core；14, mounting groove；15, strip hole；16, step
Slot.
Specific embodiment
In conjunction with referring to shown in Fig. 1 to Figure 11, according to an embodiment of the invention, welding protective jacket includes ontology 1, on ontology 1
It is provided with the cable-through hole 2 drawn for lead-out wire 11, the leading-out terminal side of cable-through hole 2 is provided with counterbore 3.
Counterbore 3 can form solder accommodation space, when lead-out wire 11 is welded across cable-through hole 2 and pcb board 9
When, counterbore 3 can form enough solder spaces in 9 bottom of pcb board, and solder can be flowed into counterbore 3, will not be because bottom is without sky
Between cause weld interval long, will not because solder excessively caused by solder toward periphery diverging flow, avoid that magnetic-suspension axial bearing occurs
Because of short circuit, creepage distance deficiency problem caused by failure welding, the electrical security of magnetic-suspension axial bearing is improved.Solder is for example
For scolding tin.
In the present embodiment, cable-through hole 2 includes at least two, and counterbore 3 includes at least two, and corresponding cable-through hole 2 is arranged,
It is spaced apart between two counterbores 3 by spacer portion 4.Cable-through hole 2 can be arranged in a one-to-one correspondence with counterbore 3.Preferably, cable-through hole 2
It is two.In general, there are two lead-out wires 11 for a coil, therefore two are set by cable-through hole 2, each cable-through hole 2 is right
Answer a lead-out wire 11, enough cable-through holes 2 can be provided for being pierced by for lead-out wire 11, while it is possible to prevente effectively from lead-out wire 11 it
Between occur short circuit.It is spaced apart due to passing through spacer portion 4 between two counterbores 3, between being capable of increasing between two cable-through holes 2
Away from, and limit isolation can be formed to solder when being welded, more efficiently avoid solder from spreading toward periphery.
Preferably, it is provided with the interval trough 5 for being spaced apart two counterbores 3 in spacer portion 4, is capable of increasing two lead-out wires 11
The creepage distance being formed by between pad further increases the electrical security of magnetic-suspension axial bearing.
It is provided with deep gouge 6 on the ontology 1 of 3 back side of counterbore, pillar 7 is provided in deep gouge 6, cable-through hole 2 runs through pillar 7.?
Deep gouge 6 is set on ontology 1, can facilitate to form socket space, it is solid to be easy to implement installation of the welding protective jacket on winding bobbin 8
It is fixed.Pillar 7 can form location fit between winding bobbin 8, guarantee to realize between welding protective jacket and winding bobbin 8 good
Location fit.
Wherein in one embodiment, a deep gouge 6, the deep gouge 6 can be only set on the ontology 1 of 3 back side of counterbore
It is arranged corresponding to all cable-through holes 2, all pillars 7 are respectively positioned in the deep gouge 6.
In another embodiment, right in each deep gouge 6 it is also possible that deep gouge 6 is arranged in a one-to-one correspondence with cable-through hole 2
A pillar 7 should be provided with.
When deep gouge 6 is arranged, deep gouge 6 can also be divided into it is multiple, each deep gouge 6 correspond at least two cable-through holes 2 set
It sets, the quantity of cable-through hole 2 corresponding to each deep gouge 6 may be the same or different, and can be set according to the actual needs
It is fixed.
In conjunction with referring to shown in Fig. 1 to Figure 11, according to an embodiment of the invention, magnetic-suspension axial bearing includes winding bobbin 8
It further include above-mentioned welding protective jacket with pcb board 9, welding protection is set between winding bobbin 8 and pcb board 9, coiling bone
Coil 10 is wound on frame 8, coil 10 includes lead-out wire 11, and lead-out wire 11 is pierced by rear and PCB from the cable-through hole 2 of welding protective jacket
Plate 9 welds.
By the way that welding protective jacket is arranged between winding bobbin 8 and pcb board 9, product scolding tin quality can be improved, while can
Solve because the scolding tin time is long, soldering tin amount is excessive, caused by electrical safety problems.
Winding bobbin 8 includes kidney-shaped boss 12, and welding protective jacket is set on kidney-shaped boss 12, and lead-out wire 11 is convex from kidney-shaped
Platform 12 enters welding protective jacket.In the present embodiment, the shape of kidney-shaped boss 12 matches with deep gouge 6, and in kidney-shaped boss 12
It is provided with cylindrical hole, the shape of cylindrical hole and the shape of pillar 7 match, and are mounted on winding bobbin that will weld protective jacket
When on 8, pillar 7 can be inserted into the cylindrical hole of kidney-shaped boss 12, so that butt welding takes over control sheath on kidney-shaped boss 12
Installation be oriented to and limited, when kidney-shaped boss 12 reach 6 position of deep gouge when, kidney-shaped boss 12 snaps onto deep gouge 6,
So that forming good secure fit between welding protective jacket and winding bobbin 8.
When welding protective jacket includes interval trough 5, interval trough 5 is corresponded on pcb board 9 and is provided with strip hole 15.Due to strip
The corresponding interval trough 5 in hole 15 is arranged, thus can from pcb board 9 the welding position of two lead-out wires 11 be formed by pad it
Between form isolation, and matched with interval trough 5, further guarantee the creepage distance between two pads, improve magnetic suspension
The electrical security of axial bearing.
Silica gel is filled in the gap of winding bobbin 8 and bearing iron core 13.
Magnetic-suspension axial bearing further includes bearing iron core 13, and bearing iron core 13 has mounting groove 14, and the setting of winding bobbin 8 exists
In mounting groove 14, and it is located between bearing iron core 13 and welding protective jacket.Since winding bobbin 8 is soldered protective jacket and bearing iron
Core 13 is included, therefore the silica gel filled in the gap of winding bobbin 8 and bearing iron core 13 is not in obscission, will not
Pollute compressor running environment.
Step groove 16 is provided on bearing iron core 13, welding protection is set in step groove 16.Preferably, when welding is anti-
When sheath is mounted on winding bobbin 8, welding protective jacket is flushed with the top surface of step groove 16, can be avoided welding protective jacket height
It is insufficient and the problem of effective support can not be formed to pcb board 9, cause 9 underbraced of pcb board, while can be to avoid welding protection
Set protrudes from the mounting surface of bearing iron core 13 and leads to not the problem of effectively being installed to pcb board 9.
When carrying out the assembling of magnetic-suspension axial bearing, around coil 10 is made on present winding bobbin 8, then soaked
Paint, will wind line and completes the winding bobbin 8 of dipping lacquer and be fitted into bearing iron core 13, while with silicone filler winding bobbin 8 and axis
The gap between iron core 13 is held, the kidney-shaped boss 12 and outlet hole of the deep gouge 6 and winding bobbin 8 that weld protective jacket bottom are filled
With in place, pcb board 9 is installed later, finally welds together lead-out wire 11 and pcb board 9.
Those skilled in the art will readily recognize that above-mentioned each advantageous manner can be free under the premise of not conflicting
Ground combination, superposition.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.Above only
It is the preferred embodiment of the present invention, it is noted that for those skilled in the art, do not departing from this hair
Under the premise of bright technical principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as guarantor of the invention
Protect range.
Claims (10)
1. a kind of welding protective jacket, which is characterized in that including ontology (1), be provided on the ontology (1) and draw for lead-out wire (11)
The leading-out terminal side of cable-through hole (2) out, the cable-through hole (2) is provided with counterbore (3).
2. welding protective jacket according to claim 1, which is characterized in that the cable-through hole (2) includes at least two, described
Counterbore (3) includes at least two, and corresponding cable-through hole (2) setting, passes through spacer portion (4) between two counterbores (3)
It is spaced apart.
3. welding protective jacket according to claim 2, which is characterized in that be provided on the spacer portion (4) by two institutes
State counterbore (3) interval trough (5) spaced apart.
4. welding protective jacket according to any one of claim 1 to 3, which is characterized in that the institute of counterbore (3) back side
It states and is provided on ontology (1) deep gouge (6), is provided with pillar (7) in the deep gouge (6), the cable-through hole (2) runs through the pillar
(7)。
5. a kind of magnetic-suspension axial bearing, which is characterized in that further include claim 1 including winding bobbin (8) and pcb board (9)
To welding protective jacket described in any one of 4, the welding protection is set on the winding bobbin (8) and the pcb board (9)
Between, it is wound with coil (10) on the winding bobbin (8), the coil (10) includes lead-out wire (11), the lead-out wire
(11) rear and the pcb board (9) are pierced by from the cable-through hole (2) of the welding protective jacket to weld.
6. magnetic-suspension axial bearing according to claim 5, which is characterized in that the winding bobbin (8) includes that kidney-shaped is convex
Platform (12), the welding protective jacket are set on the kidney-shaped boss (12), and the lead-out wire (11) is from the kidney-shaped boss
(12) enter the welding protective jacket.
7. magnetic-suspension axial bearing according to claim 5, which is characterized in that when the welding protective jacket includes interval trough
(5) when, the interval trough (5) is corresponded on the pcb board (9) and is provided with strip hole (15).
8. magnetic-suspension axial bearing according to claim 5, which is characterized in that the magnetic-suspension axial bearing further includes axis
It holds iron core (13), the bearing iron core (13) has mounting groove (14), and the winding bobbin (8) is arranged in the mounting groove (14)
It is interior, and between the bearing iron core (13) and the welding protective jacket.
9. magnetic-suspension axial bearing according to claim 8, which is characterized in that the winding bobbin (8) and the bearing
Silica gel is filled in the gap of iron core (13).
10. magnetic-suspension axial bearing according to claim 8, which is characterized in that be provided on the bearing iron core (13)
Step groove (16), the welding protection are set in the step groove (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811161084.1A CN109099065B (en) | 2018-09-30 | 2018-09-30 | Welding protective sleeve and magnetic suspension axial bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811161084.1A CN109099065B (en) | 2018-09-30 | 2018-09-30 | Welding protective sleeve and magnetic suspension axial bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109099065A true CN109099065A (en) | 2018-12-28 |
| CN109099065B CN109099065B (en) | 2020-02-18 |
Family
ID=64868101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811161084.1A Active CN109099065B (en) | 2018-09-30 | 2018-09-30 | Welding protective sleeve and magnetic suspension axial bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109099065B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882504A (en) * | 2019-04-16 | 2019-06-14 | 珠海格力电器股份有限公司 | Magnetic-suspension axial bearing assembly and motor with it |
| CN109973525A (en) * | 2019-04-22 | 2019-07-05 | 珠海格力电器股份有限公司 | Rotor frame, magnetic-suspension axial bearing, motor and compressor |
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| WO2009152545A1 (en) * | 2008-06-19 | 2009-12-23 | Technische Universität Wien | Actuator system |
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| CN109973525A (en) * | 2019-04-22 | 2019-07-05 | 珠海格力电器股份有限公司 | Rotor frame, magnetic-suspension axial bearing, motor and compressor |
| CN109973525B (en) * | 2019-04-22 | 2024-04-19 | 珠海格力电器股份有限公司 | Stator frame, magnetic suspension axial bearing, motor and compressor |
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| Publication number | Publication date |
|---|---|
| CN109099065B (en) | 2020-02-18 |
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