CN219317143U - Sealing structure, compressor, refrigerating system and air conditioner - Google Patents
Sealing structure, compressor, refrigerating system and air conditioner Download PDFInfo
- Publication number
- CN219317143U CN219317143U CN202320179713.3U CN202320179713U CN219317143U CN 219317143 U CN219317143 U CN 219317143U CN 202320179713 U CN202320179713 U CN 202320179713U CN 219317143 U CN219317143 U CN 219317143U
- Authority
- CN
- China
- Prior art keywords
- compressor
- cavity
- end cover
- hole
- gasket
- 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.)
- Active
Links
Images
Landscapes
- Compressor (AREA)
Abstract
The utility model particularly discloses a sealing structure, a compressor, a refrigerating system and an air conditioner, wherein the sealing structure is used for the compressor and comprises an end cover, the end cover is fixed at the upper end of the compressor, a first cavity, a clamping groove and a second cavity are formed in the lower end face of the end cover, the first cavity is used for accommodating a binding post of the compressor, the first cavity is communicated with an external space through the clamping groove, and the second cavity is arranged on at least part of the periphery of the first cavity in a surrounding mode.
Description
Technical Field
The utility model relates to the technical field of compressors, in particular to a sealing structure, a compressor, a refrigeration system and an air conditioner.
Background
The upper end of compressor is equipped with terminal and end cover, and the inside of end cover is located to the terminal, and the pencil passes the end cover and is connected with the terminal. However, when the compressor is in operation, the binding post heats up, so that the temperature of the space where the binding post is located in the end cover rises. At this time, the temperature of the end cover is lower than the temperature of the space where the binding post is located under the influence of the external environment, so that the condensation phenomenon can be generated on the inner wall surface of the space where the binding post is located in the end cover, the short circuit is easily generated at the joint of the binding post and the wire harness due to the damp, and the operation of the compressor is influenced.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a sealing structure which can solve the problem that condensation occurs on the inner wall surface of the space where the binding post is located in the end cover.
The utility model also provides a compressor, a refrigeration system and an air conditioner.
According to the sealing structure, the sealing structure comprises an end cover, the end cover is fixed at the upper end of the compressor, a first cavity, a clamping groove and a second cavity are formed in the lower end face of the end cover, the first cavity is used for accommodating a binding post of the compressor, the first cavity is communicated with an external space through the clamping groove, and the second cavity is arranged on at least part of the peripheral side of the first cavity in a surrounding mode.
The sealing structure provided by the embodiment of the utility model has at least the following beneficial effects: because the end cover is fixed in the compressor upper end, the lower terminal surface of end cover is equipped with first cavity, draw-in groove and second cavity, and first cavity is used for holding the terminal of compressor, and first cavity passes through draw-in groove intercommunication outer space, and the second cavity encloses and locates the at least partial week side of first cavity. Therefore, the first cavity is a space where the binding post is located, the second cavity separates the first cavity from the external environment, the inner wall surface of the first cavity is not in direct contact with the external environment, namely when the binding post heats up to enable the temperature of the first cavity to rise, the inner wall surface of the first cavity rises along with the rise of the temperature of the first cavity, and accordingly the problem that condensation occurs on the inner wall surface of the space where the binding post is located in the end cover is solved.
According to one embodiment of the utility model, a plurality of second cavities are arranged, the second cavities are arranged along the circumferential direction of the end cover, and the clamping groove is arranged between two adjacent second cavities.
According to one embodiment of the utility model, two second cavities are provided, and the two second cavities are arc-shaped cavities.
According to one embodiment of the utility model, the sealing arrangement further comprises a seal arranged between the end cover and the compressor.
According to one embodiment of the utility model, the sealing element comprises an integrated gasket and a wire passing part, the gasket is abutted against the lower end face of the end cover, the gasket is provided with a first through hole for a binding post of the compressor to pass through, and the wire passing part extends to the edge of the first through hole and is in sealing clamping connection with the clamping groove.
According to one embodiment of the utility model, the wire passing portion includes a groove body and a water blocking piece, the groove body defines a wire passing groove through which the wire harness passes, the water blocking piece is disposed at one end of the groove body away from the first through hole, the wire passing portion is provided with a notch, and the notch extends from the groove body to the water blocking piece.
A compressor according to an embodiment of the present utility model includes a sealing structure of an embodiment of the present utility model.
The compressor according to the utility model has at least the following advantages: the condensation phenomenon of the end cover is reduced, so that the compressor is not easy to break down.
According to one embodiment of the utility model, the compressor comprises a body, a nut, and a stud secured to the body; the sealing structure further comprises a sealing element, wherein the sealing element is arranged between the end cover and the compressor, the sealing element comprises an integrated gasket and a wire passing part, the gasket is abutted to the lower end face of the end cover, the gasket is provided with a second through hole, and the end cover is provided with a third through hole; the stud penetrates through the second through hole and the third through hole and is connected with the nut.
A refrigeration system according to an embodiment of the present utility model includes a compressor according to an embodiment of the present utility model.
The refrigeration system according to the utility model has at least the following advantages: because the compressor is not prone to failure, the refrigeration system is also not prone to failure.
An air conditioner according to an embodiment of the present utility model includes the refrigeration system of the embodiment of the present utility model.
The air conditioner has at least the following beneficial effects: because the refrigerating system is not easy to fail, the air conditioner works stably, and the requirements of users are met better.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The utility model is further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic view of a compressor according to an embodiment of the present utility model;
FIG. 2 is a schematic view of an end cap according to one embodiment of the present utility model;
FIG. 3 is a bottom view of an end cap according to one embodiment of the present utility model;
FIG. 4 is a schematic view of a seal according to one embodiment of the present utility model;
FIG. 5 is a schematic view of another angle of a seal according to one embodiment of the utility model.
Reference numerals:
a compressor 10;
an end cap 100; a first cavity 110; a card slot 120; a second cavity 130; a third through hole 131;
a seal 200; a spacer 210; a second through hole 211; a first through hole 212; a wire passing portion 220; a tank 221; wire passing groove 2211; a water deflector 222; a cutout 223;
a body 300;
a wire harness 400.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that references to orientation, such as the orientation or positional relationship indicated above, below, inside, outside, etc., are based on the orientation or positional relationship shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
In the description of the present utility model, the description of the first and second is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implying the number of technical features indicated or the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
The compressor is an important part of a refrigerating system, a binding post and an end cover are arranged at the upper end of the compressor, the binding post is covered in the end cover, and a wire harness penetrates through the end cover and is connected with the binding post. However, when the compressor is in operation, the binding post heats up, so that the temperature of the space where the binding post is located in the end cover rises. At this time, the temperature of the end cover is lower than the temperature of the space where the binding post is located under the influence of the external environment, so that the condensation phenomenon can be generated on the inner wall surface of the space where the binding post is located in the end cover, the short circuit is easily generated at the joint of the binding post and the wire harness due to the damp, and the operation of the compressor is influenced.
To this end, an embodiment of the present utility model proposes a sealing structure, particularly with reference to fig. 1 to 5 of the drawings of the specification.
Referring to fig. 1, a sealing structure of an embodiment of the present utility model is shown for use with a compressor 10. The sealing structure includes an end cover 100, and the end cover 100 is fixed to the upper end of the compressor 10. Referring to fig. 2 and 3, the end cap 100 has a first cavity 110, a card slot 120, and a second cavity 130. The first cavity 110 is disposed on the lower end surface of the end cap 100, the clamping groove 120 is disposed on the lower end surface of the end cap 100, and the second cavity 130 is disposed on the lower end surface of the end cap 100. It can be understood that the upper end of the first cavity 110 is closed, and the lower end of the first cavity 110 is opened; the upper end of the clamping groove 120 is closed, and the lower end of the clamping groove 120 is opened; the upper end of the second cavity 130 is closed and the lower end of the second cavity 130 is opened. In one embodiment, the end cap 100 is generally cylindrical in shape. The shape of the end cap 100 is not particularly limited here.
With continued reference to fig. 2 and 3, it should be noted that the clamping groove 120 communicates the first cavity 110 with the external space. In addition, the second cavity 130 is disposed around at least a portion of the circumference of the first cavity 110 to isolate the first cavity 110 from the external environment, i.e., the second cavity 130 surrounds the first cavity 110 around the circumference of the first cavity 110, such that the sidewall of the first cavity 110 contacts the second cavity 130, but not the external environment.
In one embodiment, the first cavity 110 is a cylindrical cavity and the second cavity 130 is an arcuate cavity. The shapes of the first cavity 110, the clamping groove 120, and the second cavity 130 are not specifically limited herein. The first cavity 110 is for receiving a terminal post of the compressor 10. It should be noted that, when the end cover 100 is fixed to the upper end of the compressor 10, the terminal is located in the first cavity 110, i.e., the terminal is covered in the end cover 100, so that the terminal is located in a relatively airtight space. Meanwhile, after the end cover 100 is fixed to the upper end of the compressor 10, the wire harness 400 is inserted into the clamping groove 120 and connected with the binding post, so that the compressor 10 can work normally.
It will be appreciated that with the above arrangement, the terminal post heats up when the compressor 10 is in operation, and the temperature in the first chamber 110 gradually increases as the terminal post is located in the first chamber 110. Since the second cavity 130 separates the first cavity 110 from the external environment, the sidewall of the first cavity 110 is in contact with the second cavity 130, but not with the external environment, so that the wall surface of the first cavity 110 is not affected by the temperature of the external environment. Generally, the outside environment is cooler, and structures in the end cap 100 that are in direct contact with the outside environment will remain at a lower temperature under the influence of the outside environment. In the compressor 10 according to an embodiment of the present utility model, the temperature of the inner wall surface of the first cavity 110 increases with the increase of the temperature of the first cavity 110, that is, the temperature difference between the first cavity 110 and the inner wall surface of the first cavity 110 is not present or is small during the temperature rising process, so as to solve the problem of condensation on the inner wall surface of the first cavity 110.
With continued reference to fig. 2 and 3, in one embodiment, the second cavities 130 are provided in a plurality, the plurality of second cavities 130 being arranged in a circumferential array along the end cap 100. Specifically, the plurality of second cavities 130 are arranged in the circumferential direction of the end cap 100 at intervals. It should be noted that the plurality of second cavities 130 are not communicated with each other. It should be noted that the card slot 120 is disposed between two adjacent second cavities 130. It can be appreciated that by providing a plurality of second cavities 130, the clamping groove 120 can be avoided in structure, so that the end cover 100 can more conveniently provide the clamping groove 120. Meanwhile, after the plurality of second cavities 130 are arranged, if a certain part of the end cover 100 is damaged, only one second cavity 130 is affected, other second cavities 130 are not affected, and the capability of the end cover 100 for solving the problem of condensation on the inner wall surface of the first cavity 110 is not obviously weakened. Referring to fig. 2 and 3, in one embodiment, two second cavities 130 are provided, and the two second cavities 130 are arc-shaped cavities. It should be noted that the number of the second cavities 130 may be one, three, four, five, six, etc., which is not particularly limited herein.
Referring to fig. 1, the sealing structure according to an embodiment of the present utility model further includes a sealing member 200, and the sealing member 200 is disposed between the end cover 100 and the compressor 10 to achieve sealing of the end cover 100 and the compressor 10. It will be appreciated that after the end cover 100 and the compressor 10 are sealed by the sealing member 200, the outside humid air is not easy to enter the first cavity 110, so that the connection between the terminal and the wire harness 400 is not easy to be short-circuited. The seal member 200 is made of a rubber material. The rubber material has a certain elasticity, and when the end cover 100 is fixed to the upper end of the compressor 10 and is located between the compressor 10 and the end cover 100, the sealing member 200 made of the rubber material is elastically deformed to a certain extent, so that the end cover 100 and the compressor 10 are better sealed.
Referring to fig. 4, the seal 200 includes a gasket 210 and a wire passing portion 220. Wherein the pad 210 is integrally formed with the wire passing portion 220. It will be appreciated that since the gasket 210 is integrally formed with the wire passing portion 220, the production of the seal member 200 is simpler and the production efficiency of the seal member 200 is improved. The spacer 210 is provided with a first through hole 212 through which the terminal of the compressor 10 passes, and the wire passing portion 220 is provided with a wire passing groove 2211 through which the wire harness 400 passes. In addition, the gasket 210 abuts against the lower end surface of the end cap 100, and the wire passing portion 220 extends to the edge of the first through hole 212 and is in sealing engagement with the clamping groove 120. It will be appreciated that by the above arrangement, the wire passing portion 220 is capable of sealing the clamping groove 120 of the end cover 100, preventing outside moist air from entering the first cavity 110 from the clamping groove 120 along the wire harness 400. In actual installation, the end cap 100 presses the gasket 210. It will be appreciated that the end cap 100 may compress the gasket 210 by its own weight, or may further compress the gasket 210 by fasteners, thereby improving the sealing effect. In one embodiment, the first through hole 212 is a circular hole. The first through hole 212 may be a square hole, and the like, and is not particularly limited herein.
In one embodiment, the gasket 210 is generally circular in shape, and in particular, the gasket 210 may not be generally circular in shape, so long as it generally exhibits a circular-like shape. In another embodiment, the gasket 210 may appear square in overall, and in particular, the gasket 210 may not be regular square, so long as it appears square-like in overall. In another embodiment, the gasket 210 may appear as a triangle as a whole, and in particular, the gasket 210 may not be a regular triangle as long as it appears as a triangle as a whole. The shape of the spacer 210 is not particularly limited here.
Referring to fig. 4 and 5, in one embodiment, the wire passing portion 220 includes a groove 221 and a water blocking piece 222. The slot 221 defines a wire passing slot 2211 through which the wire harness 400 passes. It should be noted that the cross section of the wire passing groove 2211 may be square, circular, or irregular, and is not particularly limited herein. The entire groove 221 has a long cylindrical shape. The length of the groove 211 is not particularly limited here. It can be appreciated that, when the length of the slot 211 is longer, the length of the wire passing slot 2211 is longer, and the wire harness 400 can better support the wire harness 400 after passing through the wire passing slot 2211, so that the connection between the wire harness 400 and the wire post is more stable.
Further, as shown in fig. 5, the water blocking piece 222 is disposed at an end of the groove 221 away from the first through hole 212. In one embodiment, the water deflector 222 is integrally formed with the tank 221. It will be appreciated that the water deflector 222 is integrally formed with the groove 221, so that the sealing member 200 is simpler to manufacture, and the productivity of the sealing member 200 is improved. It should be noted that, after the sealing member 200 and the end cap 100 are installed, the water blocking piece 222 is located outside the end cap 100, so as to prevent the outside humid air from entering the first cavity 110 along the wire harness 400 from the wire passing groove 2211, thereby avoiding a short circuit at the junction between the wire harness 400 and the terminal post. As shown in fig. 4 and 5, the line passing portion 220 is provided with a slit 223, and the slit 223 extends from the groove 221 to the water blocking piece 222. It will be appreciated that by providing the slit 223, the harness 400 can be routed from the slit 223 through the wire slot 2211 and into the first cavity 110 for connection with the post. In addition, after the notch 223 is formed, the wire passing portion 220 can be deformed more, and the size of the wire harness 400 can be adapted to different sizes. With continued reference to fig. 4 and 5, in one embodiment, the cutouts 223 are disposed parallel to the gasket 210. It should be noted that the notch 223 should not be too large, so that the sealing effect of the wire passing portion 220 on the card slot 120 is not affected by the too large notch 223.
An embodiment of the present utility model contemplates a compressor 10 that includes the sealing structure of an embodiment of the present utility model.
According to the compressor 10 of the present utility model, since the condensation phenomenon of the end cover 100 of the compressor 10 is reduced, the compressor 10 is less likely to malfunction.
Referring to fig. 1, the compressor 10 includes a body 300, a nut, and a stud fixed to the body 300. Wherein, the upper end of the body 300 is provided with a binding post. The binding post is fixedly connected to the body 300. The sealing structure further includes a sealing member 200, and the sealing member 200 is disposed between the end cover 100 and the compressor 10 to achieve sealing of the end cover 100 and the compressor 10. Seal 200 includes a gasket 210 and a wire passing portion 220. Wherein the pad 210 is integrally formed with the wire passing portion 220. The gasket 210 abuts against the lower end surface of the end cap 100. The description of the sealing structure according to the embodiments of the present utility model may be referred to specifically, and will not be described herein.
Referring to fig. 3 and 4, the gasket 210 is provided with a second through hole 211, and the end cap 100 is provided with a third through hole 131. The position of the second through hole 211 is not particularly limited here, and may be located in the spacer 210. The position of the third through hole 131 is not particularly limited here, and may be located in the end cap 100. It should be noted that, the stud passes through the second through hole 211 and the third through hole 131 and is connected with the nut to fix the end cap 100 to the body 300. It will be appreciated that by the arrangement described above, the end cap 100 can be secured to the body 300 simultaneously with the seal member 200. In one embodiment, the third through hole 131 is provided at a top wall of the second cavity 130. The second through hole 211 and the third through hole 131 may be circular holes, square holes, or the like, and are not particularly limited herein. In one embodiment, the second through holes 211 are provided in plurality, the third through holes 131 are provided in plurality, the nuts are provided in plurality, the studs are provided in plurality, and the number of the second through holes 211, the third through holes 131, the nuts and the studs are the same.
One embodiment of the present utility model contemplates a refrigeration system including the compressor 10 of one embodiment of the present utility model.
According to the refrigeration system of the present utility model, since the compressor 10 is not prone to malfunction, the refrigeration system is also not prone to malfunction. Since the refrigeration system adopts all the technical solutions of the compressor 10 in the above embodiments, at least all the beneficial effects brought by the technical solutions in the above embodiments are provided, and will not be described in detail herein.
An embodiment of the present utility model provides an air conditioner including the refrigeration system of an embodiment of the present utility model.
According to the air conditioner disclosed by the utility model, as the refrigerating system is not easy to fail, the air conditioner works stably and meets the requirements of users better. Because the air conditioner adopts all the technical schemes of the refrigerating system in the above embodiments, the air conditioner has at least all the beneficial effects brought by the technical schemes in the above embodiments, and the description thereof is omitted.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, and finally, it should be described that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. A sealing structure for a compressor, comprising:
the end cover is fixed in the compressor upper end, the lower terminal surface of end cover is equipped with first cavity, draw-in groove and second cavity, first cavity is used for holding the terminal of compressor, first cavity passes through draw-in groove intercommunication outer space, the second cavity encloses to be located at least partial week side of first cavity.
2. The sealing structure according to claim 1, wherein a plurality of second cavities are provided, the plurality of second cavities are arranged along the circumferential direction of the end cover, and the clamping groove is provided between two adjacent second cavities.
3. The sealing structure according to claim 2, wherein two second cavities are provided, and the two second cavities are arc-shaped cavities.
4. The seal structure of claim 1, further comprising a seal disposed between the end cover and the compressor.
5. The sealing structure according to claim 4, wherein the sealing member comprises an integrated gasket and a wire passing portion, the gasket is abutted against the lower end face of the end cover, the gasket is provided with a first through hole for a binding post of the compressor to pass through, and the wire passing portion extends to the edge of the first through hole and is in sealing clamping connection with the clamping groove.
6. The seal structure of claim 5, wherein the wire passing portion includes a groove body defining a wire passing groove through which the wire harness passes, and a water blocking piece provided at an end of the groove body remote from the first through hole, the wire passing portion being provided with a slit extending from the groove body to the water blocking piece.
7. A compressor, wherein a sealing structure according to any one of claims 1 to 3 is connected to an upper end of the compressor.
8. The compressor of claim 7, wherein the compressor includes a body, a nut, and a stud secured to the body; the sealing structure further comprises a sealing element, wherein the sealing element is arranged between the end cover and the compressor, the sealing element comprises an integrated gasket and a wire passing part, the gasket is abutted to the lower end face of the end cover, the gasket is provided with a second through hole, and the end cover is provided with a third through hole; the stud penetrates through the second through hole and the third through hole and is connected with the nut.
9. A refrigeration system comprising a compressor as claimed in claim 7 or 8.
10. An air conditioner comprising the refrigeration system of claim 9.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202320179713.3U CN219317143U (en) | 2023-02-07 | 2023-02-07 | Sealing structure, compressor, refrigerating system and air conditioner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202320179713.3U CN219317143U (en) | 2023-02-07 | 2023-02-07 | Sealing structure, compressor, refrigerating system and air conditioner |
Publications (1)
Publication Number | Publication Date |
---|---|
CN219317143U true CN219317143U (en) | 2023-07-07 |
Family
ID=87021033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202320179713.3U Active CN219317143U (en) | 2023-02-07 | 2023-02-07 | Sealing structure, compressor, refrigerating system and air conditioner |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN219317143U (en) |
-
2023
- 2023-02-07 CN CN202320179713.3U patent/CN219317143U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10784475B2 (en) | Cap assembly for a second battery and second battery | |
US9398710B2 (en) | Enclosure for an electronic control unit and electronic control unit | |
CN107946515B (en) | Battery pack and sealing mechanism thereof | |
CN219317143U (en) | Sealing structure, compressor, refrigerating system and air conditioner | |
US20240208279A1 (en) | Tire pressure sensor and automobile tire | |
CN203375615U (en) | Air conditioner, electric control box and installation structure of electric control box | |
KR101181245B1 (en) | Drain plug for car | |
KR20230011246A (en) | Housing cap and housing for an electrical connection assembly as well as electrical connection assembly | |
CN216213102U (en) | Be used for modified ZW32 casing stop device | |
CN216112427U (en) | Solenoid valve, pilot valve and four-way valve | |
CN217036914U (en) | Plastic packaging motor and refrigeration equipment | |
CN215930084U (en) | Water plug cover and air conditioner | |
CN218352308U (en) | Special inverter motor of waterproof dustproof poultry fan | |
CN221080166U (en) | Cover plate assembly and battery cell | |
CN219435632U (en) | Junction box cover gasket for fixing thermistor and compressor | |
CN220475499U (en) | Outer rotor fan rotor cover | |
CN220065779U (en) | Battery pack and power device with same | |
CN221664469U (en) | Panel component of intelligent door lock, intelligent door lock and intelligent door | |
CN219493035U (en) | Sealing element | |
CN216279369U (en) | Sealing element and socket with same | |
CN211119888U (en) | Air conditioner | |
CN215896204U (en) | Device for preventing condensation inside vacuum switch | |
CN215861704U (en) | Sealing washer and submersible pump thereof | |
CN216794541U (en) | Compressor junction box | |
KR102524448B1 (en) | Motor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |