CN219533402U - Radar sensor sealing structure and geomagnetism - Google Patents
Radar sensor sealing structure and geomagnetism Download PDFInfo
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- CN219533402U CN219533402U CN202320367301.2U CN202320367301U CN219533402U CN 219533402 U CN219533402 U CN 219533402U CN 202320367301 U CN202320367301 U CN 202320367301U CN 219533402 U CN219533402 U CN 219533402U
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- antenna
- isolation frame
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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Abstract
The utility model provides a radar sensor sealing structure and geomagnetism, which relate to the technical field of sensor structural design, and comprise: the device comprises a shell, an isolation frame and a wire; a mounting structure matched with the isolation frame is arranged in the shell; a containing groove is arranged in the isolation frame, and the isolation frame is connected with the mounting structure to seal the notch of the containing groove and form a sealed cavity; the wire is arranged on the isolation frame, and two ends of the wire are respectively arranged in and out of the groove of the holding groove. The radar sensor and the antenna need be sealed and need keep away from parts setting of steam in holding the groove, hold the inside sealed cavity that forms of groove, and outside the sealed cavity was located to electrical components, radar sensor and antenna accessible wire were connected with electrical components outside the sealed cavity, and the pouring sealant seals to realize sealing to electrical components, further promote the leakproofness of sealed cavity simultaneously, easy operation, consuming time are short, can effectually effectively promote the production rate of earth magnetism.
Description
Technical Field
The utility model relates to the technical field of sensor structure design, in particular to a radar sensor sealing structure and geomagnetism.
Background
Geomagnetism is a product installed outdoors and used for detecting whether vehicles exist in parking spaces and timing and billing, and a radar sensor and an antenna are arranged in the geomagnetism and connected with a circuit board so as to collect, process and transmit data.
In order to ensure the waterproofness and reliability of the circuit board in the geomagnetic production and manufacturing process, electrical components such as the circuit board and the like need to be glued to realize glue sealing, meanwhile, the radar sensor and the antenna are very sensitive to liquid, and if the radar sensor and the antenna are in contact with the liquid, the detection precision of the radar sensor and the antenna is reduced, and communication is failed, so that the radar sensor and the antenna need to be avoided when the electronic components in geomagnetism are glued, but the radar sensor and the antenna also need to be sealed to protect the radar sensor and the antenna.
In the prior art, electrical appliances such as a circuit board and the like are required to be filled with glue firstly, a radar sensor and an antenna are connected after the electrical appliances are filled with glue and fixed, and the radar sensor and the antenna are sealed by winding sealing strips, raw material strips and the like after connection is completed, so that the working procedure is complicated, the time consumption is long, and the geomagnetic production rate is low.
Disclosure of Invention
The utility model aims to provide a radar sensor sealing structure so as to solve the technical problems that in the prior art, the process for sealing a radar sensor and an antenna is complicated and the time consumption is long.
The utility model provides a radar sensor sealing structure, which comprises a shell, an isolation frame and a wire; a mounting structure matched with the isolation frame is arranged in the shell; a containing groove is formed in the isolation frame, and the isolation frame is connected with the mounting structure to seal the notch of the containing groove and form a sealing cavity; the wire is arranged on the isolation frame, and two ends of the wire are respectively arranged in and out of the groove of the containing groove.
Further, the mounting structure is a baffle; the baffle is arranged at the bottom of the shell; the side wall of the notch of the holding groove is attached to the side wall of the closed groove body formed by the baffle plate.
Further, a gap between the groove wall of the containing groove and the outer wall of the baffle plate is smaller than 0.05mm.
Optionally, the notch of the holding groove is in interference fit with the notch of the closed groove body formed by the baffle.
Optionally, a sealing ring is arranged on the side wall of the containing groove; the side wall of the sealing ring is attached to the side wall of the baffle.
Further, the isolation frame is provided with a wire guide; the wire is arranged in the wire guide hole; the clearance between the hole wall of the wire guide hole and the outer wall of the wire is smaller than 0.05mm.
Optionally, the hole wall of the wire guide hole is in interference fit with the outer wall of the wire.
The utility model also aims to provide geomagnetism, which comprises a radar sensor, an antenna, a circuit board and a radar sensor sealing structure; the radar sensor and the antenna are arranged in a containing groove of the radar sensor sealing structure; the circuit board is arranged in the shell and is positioned outside the containing groove; the circuit board is connected with the radar sensor and the antenna through the lead wire of the radar sensor sealing structure.
Further, the wire and the antenna are of an integrated structure.
Further, the geomagnetism also comprises pouring sealant; and the pouring sealant is filled in the shell and is positioned outside the containing groove, so that the circuit board is glued and sealed.
The beneficial effects are that:
the utility model provides a radar sensor sealing structure, comprising: the device comprises a shell, an isolation frame and a wire; a mounting structure matched with the isolation frame is arranged in the shell; a containing groove is arranged in the isolation frame, and the isolation frame is connected with the mounting structure to seal the notch of the containing groove and form a sealed cavity; the wire is arranged on the isolation frame, and two ends of the wire are respectively arranged in and out of the groove of the holding groove.
Specifically, when using, with parts such as radar sensor and antenna need sealed and need keep away from steam set up in holding the groove, and hold holding the groove and erect in mounting structure down towards mounting structure's direction, mounting structure meets with holding the notch of groove and seals the notch of holding the groove, thereby seal and hold the groove, make the inside that holds the groove after sealed, moisture, the impurity can't get into and hold in the groove, radar sensor and antenna are all arranged in this sealed cavity, the electrical apparatus part can be located outside the sealed cavity, radar sensor and antenna accessible wire are connected with the electrical apparatus part outside the sealed cavity, when encapsulating to electrical apparatus part, can directly encapsulating to the casing in, the encapsulating is to sealing cavity, the space in the casing is glued and is sealed, thereby realize the glue to electrical apparatus part need not, and the encapsulating can't get into in the sealed cavity, realize carrying out the sealing to radar sensor and antenna to the inside of electronic part, carry out earlier sealing to the electrical apparatus, the radar is carried out, the efficient production of radar sensor and antenna through the sensor and other simple and the sealed mode of promotion of other, the geomagnetic sensor is effective, time consuming time can be effectively operated.
The utility model also provides geomagnetism, which comprises a radar sensor, an antenna, a circuit board and the radar sensor sealing structure, and has the advantages compared with the prior art, and the geomagnetism is not repeated here.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a sealing structure of a radar sensor according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of geomagnetism according to an embodiment of the present utility model;
FIG. 3 is a schematic view of the cross-sectional structure in the direction A-A in FIG. 2.
Icon:
100-a housing;
110-mounting structure;
200-isolating frames;
210-a holding tank; 220-wire guides;
300-conducting wire;
400-radar sensor;
500-antennas;
600-pouring sealant.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model will now be described in further detail with reference to specific examples thereof in connection with the accompanying drawings.
The radar sensor sealing structure provided in this embodiment, as shown in fig. 1 and 2, includes a housing 100, an isolation frame 200, and a wire 300; a mounting structure 110 which is matched with the isolation frame 200 is arranged in the shell 100; the isolation frame 200 is internally provided with a containing groove 210, and the isolation frame 200 is connected with the mounting structure 110 to seal the notch of the containing groove 210 and form a sealed cavity; the wire 300 is disposed on the isolation frame 200, and two ends of the wire 300 are disposed in and out of the accommodating groove 210 respectively.
When sealed installation is carried out, parts such as radar sensor 400 and antenna 500 needing to be sealed and needing to be far away from water vapor are arranged in accommodating groove 210, and isolation frame 200 is arranged in installing structure 110 under the direction of keeping accommodating groove 210 towards installing structure 110, installing structure 110 is connected with the notch of accommodating groove 210 so as to seal the notch of accommodating groove 210, thereby sealing accommodating groove 210, the inside of accommodating groove 210 forms a sealed cavity after sealing is carried out, water vapor and impurities cannot enter into accommodating groove 210, and radar sensor 400 and antenna 500 are all arranged in the sealed cavity, electrical parts can be arranged outside the sealed cavity, radar sensor 400 and antenna 500 can be connected with electrical parts outside the sealed cavity through wires 300, when the electrical parts are filled with glue, glue can be directly filled into shell 100, and pouring glue 600 seals the space outside the sealed cavity and in shell 100, so that glue can not enter into the sealed cavity, radar sensor 400 and antenna 500 can be sealed by electronic devices, and the time-consuming operation of radar sensor 400 and antenna 500 can be carried out, and the antenna 500 can be effectively improved by the method of sealing the antenna 500, and the time-consuming operation of the device is not required.
The mounting structure 110 may adopt a structure of a mounting groove, the mounting groove is matched with a notch of the accommodating groove 210 on the isolation frame 200, specifically, a groove matched with the notch form of the accommodating groove 210 is formed in the housing 100, and when the mounting structure is mounted, the isolation frame 200 is arranged on the mounting groove, so that a side wall at the notch of the accommodating groove 210 enters the mounting groove, the bottom of the mounting groove seals the accommodating groove 210, and a sealing cavity is formed between the accommodating groove 210 and the bottom of the mounting groove.
As an embodiment, the mounting structure 110 may be disposed on a side wall of the interior of the housing 100, specifically, a boss may be disposed on an inner wall of the side wall of the housing 100, the boss is disposed along a circumferential direction of the inner wall of the housing 100, a hollow annular mounting table is formed on the side wall of the housing 100, the isolation frame 200 is disposed on an upper surface of the mounting table, and an edge of the isolation frame 200 is connected with the upper surface of the annular mounting table, so that a space below the isolation frame 200 in the housing 100 forms a sealed cavity.
In this embodiment, the mounting structure 110 is a baffle; the baffle is arranged at the bottom of the shell 100; the side walls of the notch of the holding groove 210 are attached to the side walls of the closed groove body formed by the baffle plates.
In this embodiment, the baffle is an annular baffle, and the outer diameter of the annular baffle is the same as the inner diameter of the notch of the containing groove 210, so when the isolation frame 200 is placed in the housing 100, the notch of the containing groove 210 is attached to the outer wall of the annular baffle and slides to the bottom of the housing 100, the setting of the isolation frame 200 is completed after the top surface of the notch of the containing groove 210 is attached to the bottom surface of the housing 100, and the notch of the containing groove 210 is sealed by the mounting seat formed by the annular baffle, so that the containing groove 210 forms a sealed cavity, and the external pouring sealant 600 or gas cannot enter the containing groove 210.
As an embodiment, the baffle may be configured to have an inner diameter equal to an outer diameter of the notch of the accommodating groove 210, and when the spacer 200 is installed, an outer wall of the notch of the accommodating groove 210 is attached to an inner wall of the baffle, and after the spacer 200 is installed, the notch of the accommodating groove 210 is attached to the bottom surface of the housing 100, and the annular baffle is located outside the accommodating groove 210, so that the accommodating groove 210 may be sealed, and a sealed cavity is formed in the accommodating groove 210.
In this embodiment, the gap between the groove wall of the accommodating groove 210 and the outer wall of the annular barrier is less than 0.05mm.
Because the error easily occurs between the accommodating groove 210 and the annular baffle during manufacturing, a fit gap easily occurs between the side wall of the annular baffle and the side wall of the notch of the accommodating groove 210, and because the pouring sealant 600 needs to be filled outside the isolation frame 200 to realize glue sealing, in order to ensure that the pouring sealant 600 cannot flow into the accommodating groove 210 from the gap between the annular baffle and the accommodating groove 210, the fit gap between the side wall of the annular baffle and the side wall of the notch of the accommodating groove 210 needs to be smaller than the glue inflow gap, when the fit gap between the side wall of the annular baffle and the side wall of the notch of the accommodating groove 210 is 0.05mm, the pouring sealant 600 cannot flow in, and correspondingly, the smaller the gap between the side wall of the annular baffle and the side wall of the notch of the accommodating groove 210 is, the more difficult the pouring sealant 600 flows into the accommodating groove 210 along the gap is, and the tightness in the accommodating groove 210 is excellent.
As an implementation manner, the notch of the accommodating groove 210 is in interference fit with the notch of the closed groove body formed by the baffle.
When the manufacturing process is difficult to achieve that the gap between the groove wall of the accommodating groove 210 and the outer wall of the groove body formed by the baffle is smaller than 0.05mm, an interference fit structure can be adopted, so that the outer diameter of the side wall of the groove opening of the accommodating groove 210 is slightly larger than the inner diameter of the ring body formed by the annular baffle, when the isolation frame 200 is installed, the side wall of the accommodating groove 210 is pressed to enable the groove opening of the accommodating groove 210 to be deformed slightly by elastic deformation, the accommodating groove 210 is inserted into the ring body formed by the annular baffle, after the accommodating groove 210 is completely inserted into the ring body formed by the annular baffle, the side wall of the accommodating groove 210 generates a reaction force under the action of elastic deformation to restore the original shape, and therefore the outer wall of the groove opening of the accommodating groove 210 is attached to the inner wall of the ring body formed by the annular baffle to finish sealing the accommodating groove 210, and a sealing cavity is formed in the accommodating groove 210.
As an implementation manner, a sealing ring is arranged on the side wall of the accommodating groove 210; the side wall of the sealing ring is attached to the side wall of the closed groove body formed by the baffle plate.
The side wall of the containing groove 210 can be provided with a groove body for containing a sealing ring, the sealing ring is arranged in the groove body so as to be sleeved on the side wall of the containing groove 210, after the containing groove 210 is spliced and installed with the closed groove body formed by the baffle, the side wall of the sealing ring is attached to the side wall of the closed groove body formed by the baffle, so that the sealing of the containing groove 210 is realized, a sealing cavity is formed in the containing groove 210, and the pouring sealant 600 cannot enter the containing groove 210 from between the containing groove 210 and the annular baffle.
As an embodiment, to ensure the tightness of the accommodating groove 210, the wire 300 may be directly inserted into the spacer 200 during injection molding of the spacer 200, and after the spacer 200 is solidified, the wire 300 is fixedly disposed on the spacer 200, and no gap exists between the wire 300 and the spacer 200, so that the tightness of the sealed cavity formed in the accommodating groove 210 can be ensured.
In the present embodiment, the spacer 200 is provided with a wire guide 220; the wire 300 is arranged in the wire hole 220; the gap between the hole wall of the wire guide 220 and the outer wall of the wire 300 is less than 0.05mm.
The wire 300 is led in by the wire hole 220 on the isolation frame 200 and then passes out, two ends of the wire 300 are respectively arranged at two sides of the isolation frame 200, so that the wire 300 can be connected with the parts inside and outside the groove of the containing groove 210, compared with the wire 300 fixedly embedded on the isolation frame 200, the wire 300 can be led in by the wire hole 220, when the wire 300 breaks and cannot be used, the wire 300 can be drawn out for replacement without replacing the isolation frame 200, and in order to ensure that the pouring sealant 600 cannot flow into the containing groove 210 through the gap between the outer wall of the wire 300 and the hole wall of the wire hole 220, the fit gap between the outer wall of the wire 300 and the hole wall of the wire hole 220 is smaller than the glue inflow gap, specifically, in the embodiment, the fit gap is 0.05mm, and when the single-side gap between the hole wall of the wire hole 220 and the outer wall of the wire 300 is 0.05mm, the pouring sealant 600 can be prevented from entering the containing groove 210 through the wire hole 220 and damaging the electronic components in the containing groove 210 which cannot be contacted with water.
As one embodiment, the walls of the wire guide 220 are an interference fit with the outer walls of the wire 300.
When the manufacturing process cannot meet the requirement that the unilateral gap between the hole wall of the wire guide 220 and the outer wall of the wire 300 is 0.05mm, the wire guide 220 with the hole diameter slightly smaller than the outer diameter of the wire 300 can be arranged, so that the wire guide 220 and the wire guide 300 are in interference fit, the tightness of a sealing cavity formed in the containing groove 210 can be effectively ensured, and the situation that the potting adhesive 600 enters the containing groove 210 through the wire guide 220, so that an electronic element in the sealing cavity cannot be used due to water damage is avoided.
The geomagnetism provided by the embodiment, as shown in fig. 3, includes a radar sensor 400, an antenna 500, a circuit board and a radar sensor sealing structure provided; the radar sensor 400 and the antenna 500 are disposed in the accommodating groove 210 of the radar sensor sealing structure; the circuit board is arranged in the shell 100 and is positioned outside the containing groove 210; the circuit board is connected to the radar sensor 400 and the antenna 500 through the wires 300 of the radar sensor sealing structure, respectively.
When installing geomagnetism, with parts such as radar sensor 400 and antenna 500 need be sealed and need keep away from the part setting up in the holding groove 210 in radar sensor seal structure of steam to hold holding groove 210 and locate the mounting structure 110 with the isolation frame 200 down towards mounting structure 110, mounting structure 110 meets with holding groove 210's notch in order to seal holding groove 210, holding groove 210 forms sealed cavity after the sealing, steam, in unable entering holding groove 210 of impurity, radar sensor 400 and antenna 500 all are arranged in this sealed cavity, the circuit board is located outside the sealed cavity, radar sensor 400 and antenna 500 are connected with the circuit board outside the sealed cavity through radar sensor seal structure's wire 300, can carry out the encapsulating to the circuit board after the connection, thereby realize the encapsulation to holding the circuit board outside the groove 210, when carrying out the sealing to holding groove 210's circuit board, the encapsulating glue 600 can't get into holding groove 210, can further promote the leakproofness of sealed cavity, need not to carry out the sealing to the circuit board earlier, through the radar sensor 400 and other simple mode of sealing, the production efficiency can be improved by other short time consuming time effectively, the sealed operation of antenna 500.
In this embodiment, the wire 300 and the antenna 500 are an integrated structure.
The wire 300 and the antenna 500 are of an integrated structure, so that the structure is firmer, the wire 300 and the antenna 500 are not required to be connected during installation, the geomagnetism installation and assembly are more convenient, and the geomagnetic production efficiency is further improved.
In this embodiment, geomagnetism further comprises a pouring sealant 600; the potting adhesive 600 fills the housing 100 and is located outside the receiving groove 210, thereby sealing the circuit board.
The potting adhesive 600 can strengthen the integrity of the circuit board and each electronic element, and improve the resistance to external impact and vibration; the insulation between the internal elements and the circuits is improved, which is beneficial to the miniaturization and the weight reduction of the device; the direct exposure of elements and circuits is avoided, the waterproof and dampproof performances of the device are improved, and the service performance and stability parameters are improved.
Specifically, when geomagnetism is assembled, firstly, the radar sensor 400 and the antenna 500 should be connected with the lead 300 in the radar sensor sealing structure, after connection, the isolation frame 200 is placed on the mounting structure 110, so that the radar sensor 400 and the antenna 500 are placed in a sealing cavity formed in the mounting groove, then the opening of the housing 100 is upwards, the radar sensor 400 and the antenna 500 are positioned in the sealing cavity below the isolation frame 200, the circuit board is placed above the isolation frame 200, at this time, the liquid pouring sealant 600 is poured, so that the pouring sealant 600 can wrap the circuit board, after the liquid pouring sealant 600 is solidified, the adhesive connection is formed between the components, no glue exists in the sealing cavity formed by the containing groove 210, and meanwhile, the periphery of the containing groove 210 is glued and sealed, so that the sealing effect is further enhanced, the radar sensor 400 and the antenna 500 are both positioned in the sealing cavity, and moisture can be prevented from entering the containing groove 210 when the device is used for a long time.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; 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 with equivalents; such modifications and substitutions do not depart from the spirit of the technical solutions according to the embodiments of the present utility model.
Claims (10)
1. A radar sensor sealing structure, characterized by comprising: a housing (100), a spacer (200) and a wire (300);
a mounting structure (110) matched with the isolation frame (200) is arranged in the shell (100);
the isolation frame (200) is provided with a containing groove (210), and the opening end of the containing groove (210) is connected with the mounting structure (110) so as to seal the notch of the containing groove (210) and form a sealing cavity;
the wire (300) is arranged on the isolation frame (200), one end of the wire (300) is positioned in the accommodating groove (210), and the other end of the wire is positioned outside the accommodating groove (210).
2. The radar sensor sealing structure according to claim 1, wherein the mounting structure (110) comprises a baffle;
the baffle is arranged at the bottom of the shell (100);
the side wall of the notch of the containing groove (210) is attached to the side wall of the closed groove body formed by the baffle plate.
3. The radar sensor sealing structure according to claim 2, characterized in that a gap between a groove wall of the containing groove (210) and an outer wall of the baffle is smaller than a gap into which the potting adhesive flows.
4. The radar sensor sealing structure according to claim 2, wherein an interference fit is provided between an inner wall of the accommodating groove (210) and a notch of a closed groove body formed by the baffle plate.
5. The radar sensor sealing structure according to claim 2, characterized in that a sealing ring is provided on a side wall of the accommodating groove (210);
the side wall of the sealing ring is attached to the side wall of the closed groove body formed by the baffle plate.
6. The radar sensor sealing structure according to claim 1, characterized in that the spacer (200) is provided with wire guides (220);
-within the wire guide (220) in the middle of the wire (300);
the gap between the hole wall of the wire guide (220) and the outer wall of the wire (300) is smaller than the gap into which the pouring sealant flows.
7. The radar sensor sealing structure according to claim 6, characterized in that the hole wall of the wire guide (220) is an interference fit with the outer wall of the wire (300).
8. Geomagnetism, characterized by comprising a radar sensor (400), an antenna (500), a circuit board and a radar sensor (400) sealing structure according to any of claims 1 to 7;
the radar sensor (400) and the antenna (500) are arranged in the accommodating groove (210) of the radar sensor sealing structure;
the circuit board is arranged in the shell (100) and is positioned outside the containing groove (210);
the circuit board is respectively connected with the radar sensor (400) and the antenna (500) through the lead (300) of the radar sensor sealing structure.
9. Geomagnetism according to claim 8, wherein the wire (300) and the antenna (500) are of an integrated structure.
10. The geomagnetism of claim 8, wherein the geomagnetism further comprises a potting adhesive (600);
the pouring sealant (600) is filled in the shell (100) and is positioned outside the containing groove (210), so that the circuit board is glued and sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320367301.2U CN219533402U (en) | 2023-02-27 | 2023-02-27 | Radar sensor sealing structure and geomagnetism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320367301.2U CN219533402U (en) | 2023-02-27 | 2023-02-27 | Radar sensor sealing structure and geomagnetism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219533402U true CN219533402U (en) | 2023-08-15 |
Family
ID=87629376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320367301.2U Active CN219533402U (en) | 2023-02-27 | 2023-02-27 | Radar sensor sealing structure and geomagnetism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219533402U (en) |
-
2023
- 2023-02-27 CN CN202320367301.2U patent/CN219533402U/en active Active
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