CN204877859U - Horizontal compressor and subassembly oils thereof - Google Patents
Horizontal compressor and subassembly oils thereof Download PDFInfo
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- CN204877859U CN204877859U CN201520623868.7U CN201520623868U CN204877859U CN 204877859 U CN204877859 U CN 204877859U CN 201520623868 U CN201520623868 U CN 201520623868U CN 204877859 U CN204877859 U CN 204877859U
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Abstract
The utility model discloses a horizontal compressor and subassembly oils thereof, this horizontal compressor's the subassembly that oils includes oil pipe and oils the end cover that the end cover that oils is equipped with the lower flange that is used for with horizontal compressor and forms the last oil groove of going up the oil pocket, upward the tank bottom of oil groove is equipped with the inlet port that feeds through with last oil pipe, goes up the oil groove and includes the oil storage district, and follow direction of height oil storage position in inlet port one side near last oil pipe's import of last oil pipe. The utility model discloses a horizontal compressor's the subassembly that oils, after horizontal compressor shuts down, because this oil storage district is located one side that the inlet port is close to the import of last oil pipe along last oil pipe direction of height, then the lubricating oil in the oil storage district is unable through the inlet port backward flow, storage lubricating oil has been realized, when treating that horizontal compressor starts once more, can realize lubricatedly in advance through the interior lubricating oil in oil storage district, avoided horizontal compressor the phenomenon that the fuel feeding is not enough to appear at the start -up initial stage, the interior moving part's of horizontal compressor wearing and tearing have been reduced, moving part's reliability has been improved.
Description
Technical field
The utility model relates to horizontal compressor lubrication technical field, more particularly, relates to a kind of horizontal compressor and the assembly that oils thereof.
Background technique
At present, horizontal compressor utilizes and is located at the structure that oils of lower bearing, realizes pasta be connected with axle system oil circuit by inlet outlet pressure differential.Concrete, as shown in Figure 1, lubricant oil is stored in the housing 11 of horizontal compressor, the assembly that oils oiled in structure comprises oil pipe 13 and the end cap 14 that oils, and wherein, the end cap 14 that oils has finishing bathtray, after the end cap 14 that oils is fixedly linked with lower flange 12, finishing bathtray and lower flange 12 form upper oil cavitie 15, and one end of upper oil pipe 13 stretches in the lubricant oil in housing 11, and the other end of upper oil pipe 13 is communicated with this upper oil cavitie 15.Under import differential pressure action, lubricant oil enters upper oil cavitie 15 by upper oil pipe 13, thus realizes the lubrication to moving element in horizontal compressor.
Because upper oil pipe 13 is connected with the groove sidewall of finishing bathtray; oil pipe 13 is connected with the bottom of upper oil cavitie 15; then this upper oil cavitie 15 cannot oil storage; after horizontal compressor is shut down, non lubricant oil again in upper oil cavitie 15, when horizontal compressor starts again; the particularly low speed start initial stage; more easily there is the phenomenon that fuel feeding is bad, cause the moving element in horizontal compressor to occur wearing and tearing, make the reliability of moving element low.
In sum, how to avoid horizontal compressor to occur the phenomenon for shortage of oil in initial start stage, to reduce the wearing and tearing of moving element in horizontal compressor, improving the reliability of moving element, is current those skilled in the art's problem demanding prompt solution.
Model utility content
In view of this, the purpose of this utility model is to provide a kind of assembly that oils of horizontal compressor, avoids horizontal compressor to occur the phenomenon for shortage of oil in initial start stage, to reduce the wearing and tearing of moving element in horizontal compressor, improves the reliability of moving element.Another object of the present utility model is to provide a kind of horizontal compressor with the above-mentioned assembly that oils.
In order to achieve the above object, the utility model provides following technological scheme:
The assembly that oils of horizontal compressor, comprising: upper oil pipe and the end cap that oils, described in the end cap that oils be provided with for forming the finishing bathtray of upper oil cavitie with the lower flange of horizontal compressor;
The bottom land of described finishing bathtray is provided with the oil inlet hole be communicated with described upper oil pipe, and described finishing bathtray comprises reserve, and along described upper oil pipe short transverse described in reserve be positioned at the side of described oil inlet hole near the import of described upper oil pipe.
Preferably, described oil inlet hole be positioned at described in oil the center line of end cap away from the side of the import of described upper oil pipe.
Preferably, the end cap that oils described in comprises: one end is used for the side plate be connected with described lower flange, the end plate be connected with the other end of described side plate; Described oil inlet hole is arranged on described end plate.
Preferably, the above-mentioned assembly that oils also comprises: oil described in being located at end cap, the check valve sheet of upper oil pipe and described finishing bathtray described in the one-way conduction of direction and edge oils.
Preferably, one end of described check valve sheet and the bottom land of described finishing bathtray are fixedly linked, and the other end of described check valve sheet is suspended from described finishing bathtray.
Preferably, one end that described oil inlet hole is communicated with described finishing bathtray is provided with and can seals the seal boss of fitting with described check valve sheet, and described seal boss ringwise.
Preferably, the above-mentioned assembly that oils also comprises: be positioned at described finishing bathtray and the aperture limiting described check valve sheet is greater than the baffle plate of default aperture, and described baffle plate is positioned at the side of described check valve sheet away from described oil inlet hole.
Preferably, the bottom land of described finishing bathtray is fixed in one end of described baffle plate, and the other end of described baffle plate is to the lopsidedness away from described check valve sheet.
Preferably, described baffle plate and described check valve sheet are fixed on the bottom land of described finishing bathtray by same a connection piece.
Preferably, described baffle plate is provided with lightening hole.
Based on the assembly that oils of the above-mentioned horizontal compressor provided, the utility model additionally provides a kind of horizontal compressor, and this horizontal compressor comprises: housing, is positioned at the lower flange of described housing, is positioned at described housing and the assembly that oils be connected with described lower flange; Wherein, assembly is oiled described in for the assembly that oils described in above-mentioned any one.
The assembly that oils of the horizontal compressor that the utility model provides, arranges by the bottom land at finishing bathtray the oil inlet hole be communicated with upper oil pipe, increases the link position of oil pipe, makes finishing bathtray have the reserve storing lubricant oil.After horizontal compressor is shut down; because this reserve is positioned at the side of oil inlet hole near upper oil pipe import along upper oil pipe short transverse; lubricant oil then in reserve cannot be refluxed by oil inlet hole; thus achieve storage lubricant oil; when horizontal compressor starts again; pre-lubrication can be realized by the lubricant oil in reserve; avoid shortage of oil appears supplying in horizontal compressor phenomenon in initial start stage; thus reduce the wearing and tearing of moving element in horizontal compressor, improve the reliability of moving element.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The structural representation of the horizontal compressor that Fig. 1 provides for prior art;
A kind of structural representation of the assembly that oils of the horizontal compressor that Fig. 2 provides for the utility model embodiment;
The another kind of structural representation of the assembly that oils of the horizontal compressor that Fig. 3 provides for the utility model embodiment;
The structural representation of the horizontal compressor that Fig. 4 provides for the utility model embodiment.
In upper Fig. 1-Fig. 4:
11 be housing, 12 be lower flange, 13 for upper oil pipe, 14 be the end cap that oils, 15 be upper oil cavitie, 21 for upper oil pipe, 22 be the end cap that oils, 221 be finishing bathtray, 222 be oil inlet hole, 223 be reserve, 23 be link, 24 be baffle plate, 241 be lightening hole, 25 be check valve sheet, 26 be upper oil cavitie, 27 be lower flange, 28 for housing.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figures 2 and 3, the assembly that oils of the horizontal compressor that the utility model embodiment provides, comprising: upper oil pipe 21 and the end cap 22 that oils, and the end cap 22 that oils is provided with for forming the finishing bathtray 221 of upper oil cavitie 26 with the lower flange 27 of horizontal compressor; The bottom land of finishing bathtray 221 is provided with the oil inlet hole 222 be communicated with upper oil pipe 21, and finishing bathtray 221 comprises reserve 223, and is positioned at the side of oil inlet hole 222 near the import of upper oil pipe 21 along the short transverse reserve 223 of upper oil pipe 21.
Be understandable that, because oil inlet hole 222 is located at the bottom land of finishing bathtray 221, then adjust the shape of oil inlet hole 222 at the position of the bottom land of finishing bathtray 221 and finishing bathtray 221, namely finishing bathtray 221 possesses reserve 223.Reserve 223 is the section store space of finishing bathtray 221.The short transverse of upper oil pipe 21, is vertical direction, then on this short transverse of oil pipe 21 perpendicular to the depth direction of finishing bathtray 221.
The assembly that oils of the horizontal compressor that the utility model embodiment provides, by the bottom land at finishing bathtray 221, the oil inlet hole 222 be communicated with upper oil pipe 21 is set, increase the height of oil inlet hole 222, namely increase the link position of oil pipe 21, make finishing bathtray 221 have the reserve 223 storing lubricant oil.After horizontal compressor is shut down; because this reserve 223 is positioned at the side of oil inlet hole 222 near the import of upper oil pipe 21 along the short transverse of upper oil pipe 21; lubricant oil then in reserve 223 cannot be refluxed by oil inlet hole 222; thus achieve reserve 223 and store lubricant oil; when horizontal compressor starts again; pre-lubrication can be realized by the lubricant oil in reserve 223; avoid shortage of oil appears supplying in horizontal compressor phenomenon in initial start stage; thus reduce the wearing and tearing of moving element in horizontal compressor, improve the reliability of moving element.
Be understandable that the height of oil inlet hole 222 is the height of oil inlet hole 222 on vertical direction, namely the short transverse of this oil inlet hole 222 is consistent with the short transverse of upper oil pipe 21.
Above-mentioned horizontal compressor oil in assembly, under the prerequisite that end cap 22 size that oils is certain, increase the height of oil inlet hole 222, can effectively increase reserve 223, thus increase oil reserve.In order to effectively prevent horizontal compressor in the phenomenon of initial start stage appearance for shortage of oil, prioritizing selection oil inlet hole 222 is positioned at the side of center line away from the import of upper oil pipe 21 of the end cap 22 that oils, as shown in Figure 2.Arrow in Fig. 2 in upper oil pipe 21 represents the flow direction of lubricant oil.
It should be noted that, the end cap 22 that oils fills feeling at ease with lower flange 27, the center line of the end cap 22 that namely oils and the centerline collineation of lower flange 27.The size of lower oily end cap 22 depends on the size of lower flange 27.
Certainly, oil inlet hole 222 also can be selected to be positioned at the center line of the end cap 22 that oils near the side of the import of upper oil pipe 21, as shown in Figure 3.Arrow in Fig. 3 in upper oil pipe 21 represents the flow direction of lubricant oil.For the particular location of oil inlet hole 222, design according to actual needs, as long as ensure that the lubricant oil stored in reserve 223 meets lubricating requirement.
Preferably, above-mentioned horizontal compressor oil in assembly, the end cap 22 that oils comprises: one end is used for the side plate that is connected with lower flange 27, the end plate be connected with the other end of side plate; Oil inlet hole 222 is arranged on end plate.Like this, the structure of the end cap 22 that oils is comparatively simple, convenient production and manufacture.Certainly, end cap 22 of also can selecting to oil is other comparatively complicated structures, is not limited thereto.
The above-mentioned end cap 22 that oils, in rectangular-shaped, also can be cylindrical shape.Further, end plate and side plate are integral type structure, convenient production and manufacture.Certainly, end plate also can be selected to be connected with plate-side plate welding, to be not limited to said structure.
Horizontal compressor can be applicable to fixed equipment, such as air-conditioning etc., also can be applicable on mobile device, such as automobile etc.In equipment carrying or moving process, if horizontal compressor tilts, then oil assembly also run-off the straight, more easily makes the lubricant oil in reserve 223 be refluxed by oil inlet hole 222, affect horizontal compressor and again start.Oil return in reserve 223, the assembly that oils of above-mentioned horizontal compressor also comprises: be located at the end cap 22 that oils, and along the check valve sheet 25 of oil oil pipe 21 and finishing bathtray 221 on the one-way conduction of direction.Like this, lubricant oil only can flow to finishing bathtray 221 from upper oil pipe 21, can not flow to upper oil pipe 21, thus avoid backflow from finishing bathtray 221.
It should be noted that, oil direction, is the horizontal compressor direction that oils under normal circumstances, and namely lubricant oil flows to the direction of finishing bathtray 221 from upper oil pipe 21.
Above-mentioned check valve sheet 25 can be located in oil inlet hole 222, also can be located at outside oil inlet hole 222, conveniently realize one-way conduction, prioritizing selection check valve sheet 25 is located at outside oil inlet hole 222, concrete, one end of check valve sheet 25 and the bottom land of finishing bathtray 221 are fixedly linked, and the other end of check valve sheet 25 is suspended from finishing bathtray 221.Be understandable that, check valve sheet 25 can one-way sealing oil inlet hole 222, and concrete, from finishing bathtray 221 to upper oil pipe 21, check valve sheet 25 can be sealed into oilhole 222.
Be understandable that, above-mentioned check valve sheet 25 realizes one-way conduction by the pressure reduction of its both sides.Concrete, if the upper oil pipe side pressure of check valve sheet 25 is greater than finishing bathtray side pressure, then both sides pressure reduction promotes check valve sheet 25 to finishing bathtray inclination tiltedly, realizes oiling; If the upper oil pipe side pressure of check valve sheet 25 is less than finishing bathtray side pressure, then upwards oil pipe inclination is oblique for both sides pressure reduction promotion check valve sheet 25, but the interference of the bottom land due to finishing bathtray 221, restriction check valve sheet 25 tilts, thus prevents from finishing bathtray 221 to the conducting of upper oil pipe 21.For the ease of oiling, above-mentioned check valve sheet 25 is spring sheet, such as tinsel etc.
Adopt the horizontal compressor of the above-mentioned assembly that oils, during normal operation, the oil level when reserve 223 declines, and controls check valve sheet 25 open by pressure reduction, and lubricant oil supplements to reserve 223 from upper oil pipe 21.And when shutting down, check valve sheet 25 is closed automatically, the oil level simultaneously maintaining reserve 223, at suitable height, in order to starting running next time, particularly during low speed start, can provide enough lubricant oil for initial operating stage.
Realize one-way conduction for the ease of check valve sheet 25, one end that prioritizing selection oil inlet hole 222 is communicated with finishing bathtray 221 is provided with and can seals the seal boss of fitting with check valve sheet 25, and seal boss ringwise.Like this, sealed by check valve sheet 25 and seal boss and fit, realize the sealing to oil inlet hole 222, this sealing more easily realizes, thus facilitates production and manufacture.
Above-mentioned seal boss can be located on the hole wall of oil inlet hole 222, also can be located at the periphery of oil inlet hole 222.Conveniently arrange, seal boss is located at the periphery of oil inlet hole 222 by prioritizing selection.Further, the center line of seal boss and the centerline collineation of oil inlet hole 222.For the size of seal boss, can design according to actual needs, the utility model is embodiment do not limit this.
Because check valve sheet 25 tilts to realize the unlatching of oil inlet hole 222, then check valve sheet 25 more yielding, even rupture, cause the working life of check valve sheet 25 shorter.In order to improve the life-span of check valve sheet 25, the assembly that oils of above-mentioned horizontal compressor also comprises: be positioned at finishing bathtray 221 and the aperture of restriction check valve sheet 25 is greater than the baffle plate 24 of default aperture, and this baffle plate 24 is positioned at the side of check valve sheet 25 away from oil inlet hole 222.Like this, after check valve sheet 25 tilts to default aperture, check valve sheet 25 abuts with baffle plate 24, then baffle plate 24 pairs of check valve sheet 25 produce and interfere, thus restriction check valve sheet 25 continues to tilt, and the aperture of the check valve sheet 25 namely limited continues to increase.The assembly that oils of above-mentioned horizontal compressor, by limiting the aperture of check valve sheet 25, thus limits the angle of inclination of check valve sheet 25, thus improves its working life.
Be understandable that, default aperture designs according to actual needs, and the utility model is embodiment do not limit this.Baffle plate 24 need be fixedly installed.Preferably, the bottom land of finishing bathtray 221 is fixed in one end of baffle plate 24, and the other end of baffle plate 24, to the lopsidedness away from check valve sheet 25, is convenient to the position-limiting action realizing baffle plate like this, is also convenient to install.Concrete, baffle plate 24 can be straight plate, arc plate etc., and the utility model embodiment does not limit the shape of baffle plate 24, as long as meet spacing requirement.Certainly, also realize spacing to check valve sheet 25 by other structures, be not limited to above-described embodiment.
Conveniently fixed dam 24 and check valve sheet 25, prioritizing selection baffle plate 24 and check valve sheet 25 are by being fixed on the bottom land of finishing bathtray 221 with a connection piece 23.Like this, also save connected element, accelerate packaging efficiency.Conveniently change, prioritizing selection baffle plate 24 and check valve sheet 25 are all removably fixedly installed.Preferably, baffle plate 24 and check valve sheet 25 connect by screw thread the bottom land that part is fixed on finishing bathtray 221.
In order to reduce the heavy burden of the end cap 22 that oils, meet requirement of strength, prioritizing selection baffle plate 24 is provided with lightening hole 241.For size and the number of lightening hole 241, arrange according to actual needs, the utility model is embodiment do not limit this.Further, lightening hole 241 is positioned at baffle plate 24 one end away from its fixed end.Like this, weight loss effect is better, is convenient to meet requirement of strength.
Based on the assembly that oils of the horizontal compressor that above-described embodiment provides, the utility model embodiment still provides a kind of horizontal compressor, and as shown in Figure 4, this horizontal compressor comprises: housing 28, be positioned at the lower flange 27 of housing 28, be positioned at housing 28 and the assembly that oils be connected with lower flange 27; Wherein, assembly is oiled for the assembly that oils described in above-described embodiment.
Be understandable that, the end cap 22 that oils of the assembly that oils is fixedly linked with lower flange 27, and finishing bathtray 221 and lower flange 27 surround upper oil cavitie 26.Conveniently mount and dismount, oil end cap 22 of prioritizing selection is removably fixedly linked with lower flange 27.
The assembly that oils of the horizontal compressor provided due to above-described embodiment has above-mentioned technique effect, the horizontal compressor that the utility model embodiment provides has the assembly that oils of above-mentioned horizontal compressor, the horizontal compressor that then the utility model embodiment provides also has corresponding technique effect, repeats no more herein.
To the above-mentioned explanation of the disclosed embodiments, those skilled in the art are realized or uses the utility model.To be apparent for a person skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (11)
1. the assembly that oils of a horizontal compressor, comprise: upper oil pipe (21) and the end cap that oils (22), described in the end cap (22) that oils be provided with for forming the finishing bathtray (221) of upper oil cavitie (26) with the lower flange (27) of horizontal compressor; It is characterized in that,
The bottom land of described finishing bathtray (221) is provided with the oil inlet hole (222) be communicated with described upper oil pipe (21), described finishing bathtray (221) comprises reserve (223), and along described upper oil pipe (21) short transverse described in reserve (223) be positioned at the side of import of described oil inlet hole (222) near described upper oil pipe (21).
2. the assembly that oils according to claim 1, is characterized in that, the center line of the end cap (22) that oils described in described oil inlet hole (222) is positioned at is away from the side of the import of described upper oil pipe (21).
3. the assembly that oils according to claim 1, is characterized in that, described in the end cap (22) that oils comprising: one end is used for the side plate be connected with described lower flange (27), the end plate be connected with the other end of described side plate; Described oil inlet hole (222) is arranged on described end plate.
4. according to the assembly that oils in claim 1-3 described in any one, it is characterized in that, also comprise: the end cap that oils described in being located at (22), the check valve sheet (25) of upper oil pipe (21) and described finishing bathtray (221) described in the one-way conduction of direction and edge oils.
5. the assembly that oils according to claim 4, it is characterized in that, one end of described check valve sheet (25) and the bottom land of described finishing bathtray (221) are fixedly linked, and the other end of described check valve sheet (25) is suspended from described finishing bathtray (221).
6. the assembly that oils according to claim 5, it is characterized in that, one end that described oil inlet hole (222) is communicated with described finishing bathtray (221) is provided with and can seals the seal boss of fitting with described check valve sheet (25), and described seal boss ringwise.
7. the assembly that oils according to claim 5, it is characterized in that, also comprise: be positioned at described finishing bathtray (221) and the aperture limiting described check valve sheet (25) is greater than the baffle plate (24) of default aperture, described baffle plate (24) is positioned at the side of described check valve sheet (25) away from described oil inlet hole (222).
8. the assembly that oils according to claim 7, it is characterized in that, the bottom land of described finishing bathtray (221) is fixed in one end of described baffle plate (24), and the other end of described baffle plate (24) is to the lopsidedness away from described check valve sheet (25).
9. the assembly that oils according to claim 8, is characterized in that, described baffle plate (24) and described check valve sheet (25) are fixed on the bottom land of described finishing bathtray (221) by same a connection piece (23).
10. the assembly that oils according to claim 7, is characterized in that, described baffle plate (24) is provided with lightening hole (241).
11. 1 kinds of horizontal compressors, comprise: housing (28), be positioned at the lower flange (27) of described housing (28), be positioned at described housing (28) and the assembly that oils be connected with described lower flange (27); It is characterized in that, described in oil assembly for as the assembly that oils in claim 1-10 as described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520623868.7U CN204877859U (en) | 2015-08-18 | 2015-08-18 | Horizontal compressor and subassembly oils thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520623868.7U CN204877859U (en) | 2015-08-18 | 2015-08-18 | Horizontal compressor and subassembly oils thereof |
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| Publication Number | Publication Date |
|---|---|
| CN204877859U true CN204877859U (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520623868.7U Active CN204877859U (en) | 2015-08-18 | 2015-08-18 | Horizontal compressor and subassembly oils thereof |
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| CN (1) | CN204877859U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979159A (en) * | 2017-04-10 | 2017-07-25 | 珠海凌达压缩机有限公司 | The oil return method of compressor and compressor |
| CN109058078A (en) * | 2018-08-07 | 2018-12-21 | 青岛海尔智能技术研发有限公司 | A kind of compressor and refrigeration equipment |
| CN114810553A (en) * | 2022-06-28 | 2022-07-29 | 山东宏泰电器有限公司 | Oil supply mechanism of variable frequency compressor |
-
2015
- 2015-08-18 CN CN201520623868.7U patent/CN204877859U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979159A (en) * | 2017-04-10 | 2017-07-25 | 珠海凌达压缩机有限公司 | The oil return method of compressor and compressor |
| CN106979159B (en) * | 2017-04-10 | 2018-12-07 | 珠海格力电器股份有限公司 | The oil return method of compressor and compressor |
| CN109058078A (en) * | 2018-08-07 | 2018-12-21 | 青岛海尔智能技术研发有限公司 | A kind of compressor and refrigeration equipment |
| CN109058078B (en) * | 2018-08-07 | 2021-03-23 | 青岛海尔智能技术研发有限公司 | Compressor and refrigeration plant |
| CN114810553A (en) * | 2022-06-28 | 2022-07-29 | 山东宏泰电器有限公司 | Oil supply mechanism of variable frequency compressor |
| CN114810553B (en) * | 2022-06-28 | 2022-09-13 | 山东宏泰电器有限公司 | Oil supply mechanism of variable frequency compressor |
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