CN206754108U - A kind of full coat fills compressor ground structure - Google Patents
A kind of full coat fills compressor ground structure Download PDFInfo
- Publication number
- CN206754108U CN206754108U CN201720539012.0U CN201720539012U CN206754108U CN 206754108 U CN206754108 U CN 206754108U CN 201720539012 U CN201720539012 U CN 201720539012U CN 206754108 U CN206754108 U CN 206754108U
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- protective frame
- knife
- ground structure
- relay protective
- earthing screw
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Abstract
The utility model discloses full coat to fill compressor ground structure, including the relay protective frame being located on lower shells of compressors, the relay protective frame is provided with earthing screw hole, and the ground structure includes the earthing screw that enamelled coating in earthing screw hole is squeezed out when being connected with earthing screw hole；The earthing screw includes head and bar portion, and the bar portion is set with plain washer close to the one end on the head, and the other end of the bar portion is provided with the extruding edge of a knife；Also include the lock washer being sleeved in bar portion；The lock washer is arranged between the plain washer and the head, and the plain washer and the relay protective frame are pressed into contact with；Or the lock washer is arranged between the plain washer and the relay protective frame, the lock washer and the relay protective frame are pressed into contact with, and the lock washer realizes that metal connects with the relay protective frame；The utility model can ensure the permanently effective good earth of compressor.
Description
Technical field
It the utility model is related to refrigeration compressor, and in particular to a kind of full coat fills compressor ground structure.
Background technology
Relay protective frame is welded with the lower house of compressor, there is ground connection position to realize compression in relay protective frame
The ground connection of machine.It has been found that after relay protective frame ground connection position is being coated paint, during upper earthing screw,
Though ground connection screw can play a role, it will be painted on to paint in relay protective frame screw hole and squeeze out.But due to present compressor
Outward appearance coating paint typically uses electrophoretic painting, and compressor paint film adhesion is good, even if not using electrophoretic painting, using general water
Property dipping lacquer, when these paint be sprayed onto relay protective frame inner thread hole when, ground connection screw during tightening also it is more difficult will
Luo pits paint is all extruded.Because ground connection screw can not squeeze out enamelled coating in earthing screw hole completely, earthing screw can not be with
Compressor case realizes good earth, and it is very big to contact conducting resistance.It is unexpected if there is electric leakage etc., because grounding resistance is very big,
Leakage current is difficult to again rapidly can be with by electric current by being connected earthing screw and ground wire with protective frame by relay protective frame
Flow to the earth, it is impossible to avoid accidental shock accident completely.
The Chinese patent text of Patent No. " 201320006978.X ", entitled " a kind of cup head square neck earth stud "
Offer, being disclosed on July 10th, 2013 has good grounded continuous ground structure between a kind of sheet metal component.The disclosure skill
In art, the power of lug, nib is painted to puncture when bolt needs increase square neck portion with this to increase floor and lug, nib to be fastened by screw
Layer, and the power of lug, nib also needs another part to scrape the elastic deformation of paint pad to ensure.In the disclosure technology, sheet metal component one is realized
Need to meet three conditions with the ground connection of sheet metal component two：1st, floor lug, nib is more, scrape paint pad elastic force it is sufficiently strong and sharp, screw is tight
Gu power is sufficiently large, and 2, in enough external force effects, lug, nib and floor need to puncture different sheet metal components one and the enamelled coating of sheet metal component two,
It can be grounded, 3, due to scraping paint pad need to ensure enough elastic force and scrape paint power, it is necessary to which the female holdings of Luo are thicker, while also to resist
It is female toward extrapolation Luo to scrape paint pad reaction forces.From these three conditions, it is not difficult to find out, the failure of any condition can not meet
Reliable ground, with the passage of time, the ground structure between this kind of sheet metal component easily fails.Simultaneously as scrape paint pad it is long when
Between toward place push away Luo mothers, and mother Luo is without effective security measure, it is possible to cause fastening force to diminish, finally result in earthing failure, this kind
Ground structure is present because being grounded bad the problem of causing potential safety hazard.It is additionally, since the skill of this kind of cup head square neck earth stud
Art is applied during sheet metal component manufactures switch electric utility, and square neck bolt is frequently as the connector between different sheet metal components.Should
The application of kind technology on the compressor, can not solve the problems, such as compressor reliable ground.
Utility model content
The purpose of this utility model is overcome the deficiencies in the prior art, there is provided can ensure that compressor is permanently effective good
The full coat dress compressor ground structure of ground connection.
To achieve these goals, the technical solution adopted in the utility model is：
This kind of full coat fills compressor ground structure, including the relay protective frame being located on lower shells of compressors, it is described after
Electrical equipment protective frame is provided with earthing screw hole, and the ground structure includes squeezing out in earthing screw hole when connecting with earthing screw hole
The earthing screw of enamelled coating；The earthing screw includes head and bar portion, and the bar portion is set with flat close to the one end on the head
Packing ring, the other end of the bar portion are provided with the extruding edge of a knife；Also include the lock washer being sleeved in bar portion；The lock washer
It is arranged between the plain washer and the head, the plain washer and the relay protective frame are pressed into contact with；It is or described
Lock washer is arranged between the plain washer and the relay protective frame, the lock washer and the relay protective frame
It is pressed into contact with, the lock washer realizes that metal connects with the relay protective frame.
The lock washer is made up of flat shim and the inclined tab projection on the flat shim circumference；The inclined tab is raised
One end be higher by the side plane of flat shim one, the raised other end of the inclined tab is higher by another side plane of the flat shim.
The raised one end of the inclined tab is higher by the 0.2~0.3mm of side plane of flat shim one, raised another of the inclined tab
End is higher by another 0.2~0.3mm of side plane of the flat shim.
The inclined tab projection is uniformly distributed as on the flat shim circumference.
The inclined tab is raised for 12-16.
As a kind of embodiment, the extruding edge of a knife is V-shaped, one end width of the extruding edge of a knife close to the head
Less than the described one end of the extruding edge of a knife away from the head.
The extruding knife edge length is 2~5.0mm.
As another embodiment, the extruding edge of a knife is on the bar portion end, and the extruding edge of a knife is close to institute
The one end for stating head is V-arrangement, and the described one end of the extruding edge of a knife away from the head is rectilinear structure.
The extruding knife edge length is 2~5.0mm.
The utility model has the advantage of：Full coat fills compressor ground structure, when earthing screw rotates, extruding edge of a knife rotation
And under the collective effect of earthing screw rotation, the protective paint layer for being attached to earthing screw hole is scraped, and relay protective frame and is connect
Floor screw realizes that metal connects, and forms good contact, realizes reliable ground.After earthing screw is rotated in place simultaneously, lock washer
The reliable locking of screw can be grounded, ensures that ground connection screw after screw-in, does not release, can ensure the length of relay protective frame
Phase good earth.
Further, lock washer blows the paint film on relay protective frame surface off during locking, further protects
Card relay protective frame realizes that more preferable metal connects with earthing screw, forms more preferable contact；Form the minimum relay of grounding resistance
Device protective frame ground structure, realizes compressor reliable ground.Earthing screw is during screw-in simultaneously, after being rotated in place, locking
Packing ring can be grounded the reliable locking of screw, make reliable ground permanently effective.
Brief description of the drawings
Mark in the content and figure expressed below each width accompanying drawing of the utility model specification is briefly described：
Fig. 1 is that the utility model full coat fills the lower house of compressor and the schematic diagram of ground structure.
Fig. 2 is that the utility model full coat fills a kind of structural representation of embodiment of compressor ground structure.
Fig. 3 is the structural representation for the relay protective frame that the utility model full coat fills compressor ground structure.
Fig. 4 is the structural representation for the ground wire that the utility model full coat fills compressor ground structure.
Fig. 5 is the structural representation for another embodiment that the utility model full coat fills compressor ground structure.
Fig. 6 and Fig. 7 is the structural representation for the earthing screw that the utility model full coat fills compressor ground structure.
Fig. 8 and Fig. 9 is the structural representation for the lock washer that the utility model full coat fills compressor ground structure.
Mark in above-mentioned figure is：1st, lower house, 2, relay protective frame, 3, lock washer, 4, ground connection screw, 5, flat
Packing ring, 6, ground wire, 7, the extruding edge of a knife, 8, earth terminal screw hole, 9, flat shim, 10, linear incision, 11, angular cut, 12, tiltedly
Piece double wedge.
Embodiment
Below against accompanying drawing, by the description to optimum embodiment, specific embodiment of the present utility model is made into one
Step detailed description.
As shown in Fig. 1, Fig. 3 and Fig. 4, this kind of full coat fills compressor ground structure, including is located on the lower house 1 of compressor
Relay protective frame 2, relay protective frame 2 is welded in the plane of lower house 1, and relay protective frame 2 is provided with earthing screw
Hole 8, in dipping lacquer, the earthing screw hole 8 in relay protective frame 2 is directly immersed in paint compressor, earthing screw hole 8
Upper formation protective paint layer.The ground connection spiral shell of enamelled coating in earthing screw hole 8 is squeezed out when the ground structure includes and earthing screw hole 8 connects
Nail 4；Earthing screw 4 includes head and bar portion, and bar portion is set with plain washer 5 close to the one end on head, and ground wire 6 is connected to plain cushion
On circle 5, the other end of bar portion is provided with the extruding edge of a knife 7；Also include the lock washer 3 being sleeved in bar portion；As the first reality
Scheme is applied, as shown in Fig. 2 lock washer 3 is arranged between plain washer 5 and head, plain washer 5 and relay protective frame 2 compress
Contact；Or be used as second of embodiment, as shown in figure 5, lock washer 3 be arranged on plain washer 5 and relay protective frame 2 it
Between, lock washer 3 and relay protective frame 2 are pressed into contact with, and lock washer 3 squeezes out the paint on the surface of relay protective frame 2 when locking
Layer, lock washer 3 realize that metal connects with relay protective frame 2.
In the first above-mentioned embodiment, earthing screw 4 is provided with the extruding edge of a knife 7, during upper earthing screw 4, connects
Floor screw 4 is due to rotating, and the extruding edge of a knife 7 is also rotating, and the extruding edge of a knife 7 of rotation can will be attached to relay protective frame 2
Earthing screw hole 8 paint wipe off.The screw-in of one side earthing screw 4 will be painted on earthing screw hole 8 in relay protective frame 2
Interior paint squeezes out a part, recycles the constantly screw-in finishing of the extruding edge of a knife 7 more preferably to be painted in the screw hole of relay protective frame 2 and scrapes
Walk, such relay protective frame 2 and the good contact of earthing screw 4, realize metal and metal good contact.Lock washer 3 simultaneously
It is arranged between plain washer 5 and head, can be grounded the reliable locking of screw 4, the abundant locking function of lock washer 3,
Ensure that earthing screw 4 after screw-in, does not release, can ensure the long-term good earth of relay protective frame 2.The He of earthing screw 4
Lock washer 3 is used as one group of sub-assembly, under the collective effect of the two, although relay protective frame 2 is painted completely, be grounded
After screw 4 fastens, conducting resistance very little is contacted, grounding resistance also very little is unexpected if there is electric leakage etc., due to grounding resistance very
Small, electric current rapidly may be used by leakage current by being connected earthing screw 4 and ground wire 6 with protective frame again by relay protective frame 2
To flow to the earth, accidental shock accident is also avoided.
In above-mentioned second of embodiment, earthing screw 4 is provided with the extruding edge of a knife 7, during upper earthing screw 4, connects
Floor screw 4 is due to rotating, and the extruding edge of a knife 7 is also rotating, and the extruding edge of a knife 7 of rotation can will be attached to protective frame earthing screw
The paint of hole 8 is wiped off.The screw-in of one side earthing screw 4 will be painted on to paint in earthing screw hole 8 in relay protective frame 2 and squeeze out
A part, recycling the extruding edge of a knife 7 constantly to screw in finishing will more preferably paint in the screw hole of relay protective frame 2 and blows off, so after
Electrical equipment protective frame 2 and the good contact of earthing screw 4, realize metal and metal good contact.Lock washer 3 is arranged on plain washer 5
Between relay protective frame 2, when earthing screw 4 screws in, the rotation of lock washer 3 produces to the surface of relay protective frame 2 scrapes
Effect is squeezed, the ground terminal plane paint film of the position of earthing screw hole 8 in relay protective frame 2 is scraped and squeezed away, lock washer 3
Realize that metal connects with the ground terminal in relay protective frame 2.It is further to ensure earthing screw 4 and relay protective frame 2
Metal connection, realize the reliable ground of relay, be grounded line 6 and the almost nil grounding resistance of relay protective frame 2.
Lock washer 3, which can play fastening effect, simultaneously prevents earthing screw 4 from releasing, and makes relay ground connection permanently effective.Earthing screw 4,
Plain washer 5, lock washer 3 are used as one group of sub-assembly, under the collective effect of three, reach ground wire 6 and relay protective frame more than 2
The grounding resistance for being zero, due to grounding resistance very little, leakage current passes through the He of earthing screw 4 again by relay protective frame 2
Ground wire 6 can flow to electric current rapidly on the earth, also avoid accidental shock accident.
As can be seen from figures 8 and 9, lock washer 3 is made up of flat shim 9 and the inclined tab double wedge 12 on the circumference of flat shim 9；
One end of inclined tab double wedge 12 is higher by the side plane of flat shim 9 one, and the other end of inclined tab double wedge 12 is higher by 9 another side plane of flat shim.
Plane domain of the flat shim 9 as lock washer 3, inclined tab double wedge 12 and flat shim 9 are integral type structure.On lock washer 3
The both ends of inclined tab double wedge 12 and the both sides of flat shim 9 are in a fixed inclination, and for such earthing screw 4 during screw-in, each inclined tab is convex
Paint film in relay protective frame 2 can be marked a pit by tooth 12, so as to fully squeeze away paint film, realize compressor reliable ground.
Lock washer 3 with inclined tab double wedge 12 simultaneously, also abundant locking function, ensure that ground connection screw after screw-in, is not released, ensured
Long-term good earth, due to grounding resistance very little, leakage current passes through earthing screw 4 and ground connection again by relay protective frame 2
Line 6 can flow to electric current rapidly on the earth, also avoid accidental shock accident.
It is preferred that one end of inclined tab double wedge 12 is higher by the 0.2~0.3mm of side plane of flat shim 9 one, the other end of inclined tab double wedge 12
It is higher by another 0.2~0.3mm of side plane of flat shim 9.Inclined tab double wedge 12 is higher by 0.2~0.3mm, inclined tab double wedge 12 than flat shim 9
While can scrape off the paint layer from surface of relay protective frame 2, ensure that inclined tab double wedge 12 also has elasticity well, to ensure
Good locking effect.
It is preferred that inclined tab double wedge 12 is 12-16.Inclined tab double wedge 12 is evenly distributed on the circumference of flat shim 9.The suitable number of selection
The inclined tab double wedge 12 of amount, and inclined tab double wedge 12 is uniformly distributed, using the teaching of the invention it is possible to provide reliable and stable coupling mechanism force, and can be good at scraping off
The paint layer from surface of relay protective frame 2, the reliable metal for being grounded screw 4 with relay protective frame 2 connect.
As a kind of embodiment, as shown in Fig. 2 the extruding edge of a knife 7 is V-shaped, one end width of the extruding edge of a knife 7 close to head
Less than the one end of the extruding edge of a knife 7 away from head.Extrude the sword that the introducing port of the edge of a knife 7 is big, and top is small, is formed on the extruding edge of a knife 7 both sides
Mouth can play a part of scraping off enamelled coating in earthing screw hole 8, to be further ensured that earthing screw 4 and earthing screw hole 8 are realized
Effective metal connection.It is preferred that the extruding length of the edge of a knife 7 is 2~5mm.
As another embodiment, as shown in FIG. 6 and 7, on bar portion end, the extruding edge of a knife 7 leans on the extruding edge of a knife 7
The one end on nearly head is V-arrangement, and the extruding edge of a knife 7 is oblique line shape close to the one end on head, forms angular cut 11, and the extruding edge of a knife 7 is remote
The one end on head is rectilinear structure, forms linear incision 10.It is 2~5mm to extrude the length of the edge of a knife 7.It is linear to extrude the edge of a knife 7
Type, top connect a slant edge, and the cutting edge formed on the slant edge of V-arrangement can play a part of scraping off enamelled coating in earthing screw hole 8, to enter
One step ensures that earthing screw 4 realizes that effective metal connects with earthing screw hole 8.It is preferred that the extruding length of the edge of a knife 7 is 2~5mm.
The earthing mode of this kind of full coat dress compressor ground structure is：Compressor is in dipping lacquer, in relay protective frame 2
Earthing screw hole 8 is directly immersed in paint, and protective paint layer is formed on earthing screw hole 8；
After the bar portion of earthing screw 4 is set with lock washer 3 and plain washer 5 successively, the bar portion of earthing screw 4 penetrates ground connection
In screw hole 8, firmly earthing screw 4 is screwed in earthing screw hole 8, earthing screw 4 is during rotation, earthing screw 4
On the extruding edge of a knife 7 rotate；Earthing screw 4 squeezes out a part when rotated, by paint in earthing screw hole 8, while extrudes knife
Mouth 7 constantly screws in finishing, is blown off being painted in earthing screw hole 8；The common work that the extruding edge of a knife 7 rotates and earthing screw 4 rotates
Under, the protective paint layer for being attached to earthing screw hole 8 is scraped, and relay protective frame 2 realizes that metal connects with earthing screw 4,
Form good contact；After earthing screw 4 is rotated in place, lock washer 3 can be grounded the reliable locking of screw 4, form ground connection
The minimum ground structure of relay protective frame 2 of resistance, realizes compressor reliable ground；
Or after the bar portion of earthing screw 4 is set with plain washer 5 and lock washer 3 successively, the bar portion of earthing screw 4 penetrates
In earthing screw hole 8, firmly earthing screw 4 is screwed in earthing screw hole 8, earthing screw 4 is grounded spiral shell during rotation
The extruding edge of a knife 7 on nail 4 rotates；Earthing screw 4 squeezes out a part when rotated, by paint in earthing screw hole 8, extrudes simultaneously
The edge of a knife 7 constantly screws in finishing, and paint in earthing screw hole 8 is blown off；The rotation of the extruding edge of a knife 7 and earthing screw 4 rotate common
Under effect, the protective paint layer for being attached to earthing screw hole 8 is scraped, and relay protective frame 2 and earthing screw 4 realize that metal connects
Connect, form good contact；Lock washer 3 blows the paint film on the surface of relay protective frame 2 off during locking, lock washer 3
Realize that metal connects with relay protective frame 2, further ensure that relay protective frame 2 and earthing screw 4 realize more preferable metal
Connection, form more preferable contact；After earthing screw 4 is rotated in place simultaneously, lock washer 3 can be grounded the reliable locking of screw 4,
The minimum ground structure of relay protective frame 2 of grounding resistance is formed, realizes compressor reliable ground.
This kind of full coat fills compressor ground structure, passes through the improvement to the structure of earthing screw 4, and earthing screw 4 and lock
The use of the component of tight packing ring 3, can realize the good contact of relay protective frame 2 and earthing screw 4, realize metal and metal
Good contact, realize the reliable ground of relay.Lock washer 3 also has abundant locking function simultaneously, ensures that ground connection screw is revolving
After entering relay protective frame 2, do not release, further ensure long-term good earth, due to grounding resistance very little, leakage current leads to
Crossing relay protective frame 2 can flow to electric current rapidly on the earth by being connected earthing screw 4 and ground wire 6 with protective frame again,
Avoid accidental shock accident.
Obvious the utility model specific implementation is not subject to the restrictions described above, as long as employing method of the present utility model
The improvement for the various unsubstantialities that design and technical scheme are carried out, within the scope of protection of the utility model.
Claims (9)
1. a kind of full coat fills compressor ground structure, including the relay protective frame being located on lower shells of compressors, the relay
Device protective frame is provided with earthing screw hole, it is characterised in that：The ground structure, which includes squeezing out when connecting with earthing screw hole, to be connect
The earthing screw of enamelled coating in Floor screw hole；The earthing screw includes head and bar portion, the bar portion close to the head one
End is set with plain washer, and the other end of the bar portion is provided with the extruding edge of a knife；Also include the lock washer being sleeved in bar portion；Institute
State lock washer to be arranged between the plain washer and the head, the plain washer and the relay protective frame are compressed and connect
Touch；Or the lock washer is arranged between the plain washer and the relay protective frame, the lock washer and described
Relay protective frame is pressed into contact with, and the lock washer realizes that metal connects with the relay protective frame.
2. full coat as claimed in claim 1 fills compressor ground structure, it is characterised in that：The lock washer by flat shim and
The raised composition of inclined tab on the flat shim circumference；The raised one end of the inclined tab is higher by the side plane of flat shim one,
The raised other end of the inclined tab is higher by another side plane of the flat shim.
3. full coat as claimed in claim 2 fills compressor ground structure, it is characterised in that：The raised one end of the inclined tab is higher by
0.2~the 0.3mm of side plane of flat shim one, the raised other end of the inclined tab are higher by another side plane 0.2 of the flat shim
~0.3mm.
4. full coat as claimed in claim 2 fills compressor ground structure, it is characterised in that：The inclined tab projection is evenly distributed on
On the flat shim circumference.
5. full coat as claimed in claim 2 fills compressor ground structure, it is characterised in that：The inclined tab is raised for 12-16.
6. the full coat dress compressor ground structure as described in claim 1 or 2 or 3 or 4 or 5, it is characterised in that：The extruding knife
Mouth is V-shaped, and one end width of the extruding edge of a knife close to the head is less than the described one end of the extruding edge of a knife away from the head.
7. full coat as claimed in claim 6 fills compressor ground structure, it is characterised in that：It is described extruding knife edge length be 2~
5.0mm。
8. the full coat dress compressor ground structure as described in claim 1 or 2 or 3 or 4 or 5, it is characterised in that：The extruding knife
Mouth is on the bar portion end, and the extruding edge of a knife is V-arrangement close to the one end on the head, and the extruding edge of a knife is away from described in
The one end on head is rectilinear structure.
9. full coat as claimed in claim 8 fills compressor ground structure, it is characterised in that：It is described extruding knife edge length be 2~
5.0mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720539012.0U CN206754108U (en) | 2017-05-16 | 2017-05-16 | A kind of full coat fills compressor ground structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720539012.0U CN206754108U (en) | 2017-05-16 | 2017-05-16 | A kind of full coat fills compressor ground structure |
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| Publication Number | Publication Date |
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| CN206754108U true CN206754108U (en) | 2017-12-15 |
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ID=60617126
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996410A (en) * | 2017-05-16 | 2017-08-01 | 芜湖欧宝机电有限公司 | A kind of full coat dress compressor ground structure and earthing method |
-
2017
- 2017-05-16 CN CN201720539012.0U patent/CN206754108U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996410A (en) * | 2017-05-16 | 2017-08-01 | 芜湖欧宝机电有限公司 | A kind of full coat dress compressor ground structure and earthing method |
| CN106996410B (en) * | 2017-05-16 | 2023-02-21 | 芜湖欧宝机电有限公司 | Grounding structure and grounding method of full-coating compressor |
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