CN212137065U - Switch cabinet dehumidifying and drying device - Google Patents
Switch cabinet dehumidifying and drying device Download PDFInfo
- Publication number
- CN212137065U CN212137065U CN202021034597.9U CN202021034597U CN212137065U CN 212137065 U CN212137065 U CN 212137065U CN 202021034597 U CN202021034597 U CN 202021034597U CN 212137065 U CN212137065 U CN 212137065U
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- shell
- fixed plate
- loading board
- exhaust fan
- cabinet body
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Abstract
The utility model discloses a cubical switchboard removes damp drying device, including shell, fixed plate, ventilation pipe, loading board, exhaust fan, the cabinet body and the cover body, its characterized in that: the utility model discloses a ventilation cabinet, including shell, ventilation pipe, exhaust fan, cabinet body, the shell top be provided with the stand perpendicularly, be provided with the fresh air inlet at the shell top to be provided with the shutter on shell bottom lateral wall, the fixed plate transversely set up in the shell, the ventilation pipe vertically pass the fixed plate, the loading board transversely set up in the shell of ventilation pipe below, the exhaust fan setting on the locating plate, the cabinet body place on the loading board, the cover body set up on the stand. The utility model discloses in inserting a location section of thick bamboo with the reference column, can fix a position the cabinet body through a location section of thick bamboo, reference column, avoid the cabinet body to take place to rock, improve the stability of cubical switchboard, on the other hand can make to have the certain distance between the cabinet body and the loading board through a location section of thick bamboo, reference column, and the flow of the air current of being convenient for further improves the dehumidification efficiency and the dehumidification effect of cubical switchboard.
Description
Technical Field
The utility model relates to a cubical switchboard processing technology field specifically is a cubical switchboard removes damp drying device.
Background
The switch cabinet is an electric device, the outside line of the switch cabinet firstly enters a main control switch in the cabinet and then enters a branch control switch, and each branch is arranged according to the requirement, such as an instrument, an automatic control, a motor magnetic switch, various alternating current contactors and the like. In pull-out type low-voltage cabinet low-voltage switchgear working process, need regularly remove damp drying to the pull-out type low-voltage cabinet, the moisture of avoiding in the pull-out type low-voltage cabinet causes the malfunctioning condition of electronic components to take place, the patent of application number 201720884855.4 has announced an electrical equipment easily arranges damp-proof switchgear, and it has solved the inconvenient problem of adjusting of dry dehumidification, but it has work efficiency low, remove damp drying effect not good, remove the not good problem of damp drying homogeneity.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a cubical switchboard that structural design is reasonable, work efficiency is high, remove damp drying is effectual, remove damp drying uniformity good removes damp drying device to the work efficiency that current cubical switchboard removed damp device exists low, remove damp drying effect not good, remove the not good problem of damp drying uniformity.
The utility model provides a technical scheme that technical problem taken does:
the utility model provides a cubical switchboard removes damp drying device, includes shell, fixed plate, ventilation pipe, loading board, exhaust fan, the cabinet body and the cover body, its characterized in that: the top of the shell is vertically provided with a vertical column, the top of the shell is provided with an air inlet, the side wall of the bottom of the shell is provided with a shutter, the shell is connected with a vertical column bracket through welding, the connection strength between the shell and the vertical column is enhanced, airflow is prevented from flowing back into the shell through the shutter, the fixed plate is transversely arranged in the shell, the fixed plate is provided with a storage battery and a controller, the back of the fixed plate is provided with a humidity sensor, the fixed plate is connected with the shell through welding, the connection strength between the shell and the fixed plate is enhanced, the stability of the storage battery, the controller and the humidity sensor can also be improved, the ventilation pipe vertically penetrates through the fixed plate, the bearing plate is transversely arranged in the shell below the ventilation pipe, the fixed plate is arranged between the bearing plate and the bottom of the shell, the exhaust fan is arranged on the positioning plate, the exhaust fan is used for discharging air flow in the shell below the bearing plate from the exhaust fan, the air flow above the bearing plate flows downwards through the vent holes to generate negative pressure in the shell, the air flow outside the shell flows into the shell above the fixed plate through the air inlet holes, the air flow above the fixed plate flows downwards through the vent pipe, the air flow is uniformly discharged through the air discharge grooves on the vent pipe, the dry air flow is uniformly distributed in the shell, the switch cabinet is uniformly dehumidified, the dehumidification efficiency and the dehumidification effect of the switch cabinet are improved, the cabinet body is placed on the bearing plate, the cover body is arranged on the stand column, the solar panel is arranged on the surface of the cover body, the function of blocking wind and rain can be achieved on the switch cabinet through the cover body, rainwater is prevented from entering the shell from the air inlet holes, and the safety of the switch cabinet in the working process is improved, solar energy board absorbs the sunlight, change light energy into the electric energy, carry the electric energy to the battery in through the connecting wire, for the controller, the humidity inductor, the work of exhaust fan provides the electric energy, humidity inductor can sense humidity in the cubical switchboard, when the humidity is great in the cubical switchboard, the work of exhaust fan can be controlled to the controller, make the air current in the shell discharge fast, the air current flow speed in the cubical switchboard accelerates, the efficiency of removing damp and the effect of removing damp of improvement cubical switchboard.
Preferably, the fresh air inlet at shell top in be provided with the filter screen to be provided with vertical structure's drier layer between top and the fixed plate is decided to the shell, adopt the preparation of active carbon material with the filter screen, can carry out filtration treatment to the air current through the fresh air inlet entering shell through the filter screen, adsorb impurity in the air current, the dust of avoiding in the air takes place along with the condition that the air current enters into the interior electronic components of shell pollution, can adsorb the moisture in the air current after filtering through the drier layer, improve the drying degree of air current, remove damp processing to the cubical switchboard, improve the drying degree of cubical switchboard, and then improve the security performance of cubical switchboard in the course of the work.
Preferably, the shell internal fixation board below on the ventilation pipe seted up the exhaust groove, the effect of exhaust fan is discharged the air current in the shell of loading board below from the exhaust fan, the air current of loading board top flows downwards through the ventilation hole, produce the negative pressure in making the shell, the outer air current of shell flows in the shell of fixed plate top through the fresh air inlet, the air current of fixed plate top flows downwards through the ventilation pipe, the exhaust groove on the ventilation pipe makes the air current evenly discharge, make dry air current evenly distributed in the shell, carry out even except that the tide processing to the cubical switchboard, the efficiency of removing the tide and the effect of removing the tide of cubical switchboard have been improved.
Preferably, the loading board on be provided with a location section of thick bamboo, cabinet body bottom be provided with the reference column to in inserting a location section of thick bamboo with the reference column, can fix a position the cabinet body through a location section of thick bamboo, reference column, avoid the cabinet body to take place to rock, improve the stability of cubical switchboard, on the other hand can make to have the certain distance between the cabinet body and the loading board through a location section of thick bamboo, reference column, the flow of the air current of being convenient for further improves the cubical switchboard remove damp efficiency and remove damp effect.
Preferably, the battery pass through the connecting wire with the controller, solar panel is connected to pass through the connecting wire, and pass through the connecting wire with the controller respectively with humidity inductor, the exhaust fan is connected, the sunlight can the board absorb the sunlight, convert light energy into the electric energy, carry the electric energy to the battery in through the connecting wire, for the controller, humidity inductor, the work of exhaust fan provides the electric energy, humidity inductor can sense the interior humidity of cubical switchboard, when the humidity is great in the cubical switchboard, the work of exhaust fan can be controlled to the controller, make the air current in the shell discharge fast, accelerate the air current flow speed in the cubical switchboard, improve the dehumidification efficiency and the dehumidification effect of cubical switchboard.
Has the advantages that: the utility model discloses be provided with the filter screen in the fresh air inlet, and be provided with vertical structure's drier layer between top and fixed plate is decided to the shell, adopt the preparation of activated carbon material with the filter screen, can carry out filtration treatment to the air current through in the fresh air inlet gets into the shell through the filter screen, adsorb impurity in the air current, the condition of avoiding dust in the air to enter into in the shell along with the air current pollutes electronic components takes place, can adsorb the moisture in the air current after filtering through the drier layer, improve the drying degree of air current, remove damp processing to the cubical switchboard, improve the drying degree of cubical switchboard, and then improve the security performance of cubical switchboard in the course of the work.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of a part of the structure of the present invention, illustrating the connection structure of the fixing plate and the ventilation pipe.
Fig. 3 is a schematic view of a part of the structure of the present invention, illustrating the connection structure of the bearing plate and the vent hole.
Fig. 4 is a schematic diagram of a part of the structure of the present invention, illustrating a connection structure of the controller and the battery.
Fig. 5 is a schematic diagram of another embodiment of the present invention.
In the figure: 1. the solar energy storage cabinet comprises a shell, 2 parts of a fixing plate, 3 parts of a ventilation pipe, 4 parts of a bearing plate, 5 parts of an exhaust fan, 6 parts of a cabinet body, 7 parts of a cover body, 8 parts of a stand column, 9 parts of an air inlet hole, 10 parts of a shutter, 11 parts of a filter screen, 12 parts of a storage battery, 13 parts of a controller, 14 parts of a humidity sensor, 15 parts of a drying agent layer, 16 parts of an exhaust groove, 17 parts of a positioning cylinder, 18 parts of a ventilation hole, 19 parts of a positioning plate, 20 parts of a positioning column, 21 parts of a solar panel, 22 parts.
Detailed Description
The present invention will be described in more detail with reference to the accompanying drawings.
The first embodiment is as follows:
as shown in the attached figures 1-4, the switch cabinet dehumidifying and drying device comprises a shell 1, a fixing plate 2, a ventilation pipe 3, a bearing plate 4, an exhaust fan 5, a cabinet body 6 and a cover body 7, and is characterized in that: the top of the shell 1 is vertically provided with a vertical column 8, the top of the shell 1 is provided with an air inlet 9, the side wall of the bottom of the shell 1 is provided with a shutter 10, a bracket of the shell 1 and the vertical column 8 is connected through welding, the connection strength between the shell 1 and the vertical column 8 is enhanced, airflow is prevented from flowing back into the shell 1 through the shutter 10, the fixed plate 2 is transversely arranged in the shell 1, the fixed plate 2 is provided with a storage battery 12 and a controller 13, the back of the fixed plate 2 is provided with a humidity sensor 14, the fixed plate 2 is connected with the shell 1 through welding, the connection strength between the shell 1 and the fixed plate 2 is enhanced, the stability of the storage battery 12, the controller 13 and the humidity sensor 14 can also be improved, the vent pipe 3 vertically penetrates through the fixed plate 2, the bearing plate 4 is transversely arranged in the shell 1 below the vent pipe 3, a fixed plate 2 is arranged between the bottom of the bearing plate 4 and the bottom of the shell 1, a vent hole 18 is arranged on the bearing plate 4, the exhaust fan 5 is arranged on a positioning plate 19, the air flow in the shell 1 below the bearing plate 4 is discharged from the exhaust fan 5 under the action of the exhaust fan 5, the air flow above the bearing plate 4 flows downwards through the vent hole 18 to generate negative pressure in the shell 1, the air flow outside the shell 1 flows into the shell 1 above the fixed plate 2 through an air inlet 9, the air flow above the fixed plate 2 flows downwards through a vent pipe 3, an air discharge groove 16 on the vent pipe 3 enables the air flow to be uniformly discharged, the dry air flow is uniformly distributed in the shell 1 to perform uniform dehumidification treatment on the switch cabinet, the dehumidification efficiency and the dehumidification effect of the switch cabinet are improved, the cabinet body 6 is arranged on the bearing plate 4, the cover body 7 is arranged on the stand column 8, and a solar panel 21 is arranged on the surface of the cover body 7, can play the effect that blocks wind and rain to the cubical switchboard through the cover body 7, avoid the rainwater to enter into in the shell 1 from the fresh air inlet 9, improve the security of cubical switchboard in the course of the work, the sunlight can absorb the sunlight by the board, convert light energy into the electric energy, carry the electric energy to battery 12 in through connecting wire 22, for controller 13, humidity inductor 14, exhaust fan 5's work provides the electric energy, humidity inductor 14 can sense humidity in the cubical switchboard, when humidity is great in the cubical switchboard, controller 13 can control exhaust fan 5 work, make the air current in the shell 1 discharge fast, accelerate the air current velocity of flow in the cubical switchboard, improve the dehumidification efficiency and the dehumidification effect of cubical switchboard.
Preferably, the fresh air inlet 9 at the top of the shell 1 is internally provided with a filter screen 11, a drying agent layer 15 of a vertical structure is arranged between the top of the shell 1 and the fixed plate 2, the filter screen 11 is made of an activated carbon material, the air flow entering the shell 1 through the fresh air inlet 9 can be filtered through the filter screen 11, impurities in the air flow are adsorbed, the situation that dust in the air enters the shell 1 along with the air flow to pollute electronic components is avoided, the moisture in the filtered air flow can be adsorbed through the drying agent layer 15, the drying degree of the air flow is improved, the dehumidifying treatment is carried out on the switch cabinet, the drying degree of the switch cabinet is improved, and the safety performance of the switch cabinet in the working process is further improved.
Preferably, shell 1 internal fixation board 2 below ventilation pipe 3 on seted up exhaust groove 16, exhaust fan 5's effect is discharged the air current in the shell 1 of loading board 4 below from exhaust fan 5, the air current of loading board 4 top flows down through ventilation hole 18, produce the negative pressure in making shell 1, the air current outside shell 1 flows into in the shell 1 of fixed plate 2 top through fresh air inlet 9, the air current of fixed plate 2 top flows down through ventilation pipe 3, exhaust groove 16 on the ventilation pipe 3 makes the air current evenly discharge, make dry air current evenly distributed in shell 1, carry out even except that the tide processing to the cubical switchboard, the efficiency and the effect of removing the tide of cubical switchboard have been improved.
Preferably, loading board 4 on be provided with a location section of thick bamboo 17, 6 bottoms of the cabinet body be provided with reference column 20 to insert a location section of thick bamboo 17 with reference column 20 in, can fix a position the cabinet body 6 through a location section of thick bamboo 17, reference column 20, avoid the cabinet body 6 to take place to rock, improve the stability of cubical switchboard, on the other hand can make the cabinet body 6 and have the certain distance between the loading board 4 through a location section of thick bamboo 17, reference column 20, the flow of the air current of being convenient for further improves the cubical switchboard remove damp efficiency and remove damp effect.
Preferably, the storage battery 12 is connected with the controller 13 and the solar panel 21 through a connecting line 22, the controller 13 is respectively connected with the humidity sensor 14 and the exhaust fan 5 through the connecting line 22, the solar panel absorbs sunlight and converts light energy into electric energy, the electric energy is transmitted into the storage battery 12 through the connecting line 22, electric energy is provided for the work of the controller 13, the humidity sensor 14 and the exhaust fan 5, the humidity sensor 14 can sense the humidity in the switch cabinet, when the humidity in the switch cabinet is high, the controller 13 can control the work of the exhaust fan 5, air flow in the shell 1 is rapidly exhausted, the air flow flowing speed in the switch cabinet is accelerated, and the dehumidifying efficiency and the dehumidifying effect of the switch cabinet are improved.
Example two:
as shown in fig. 5: the utility model provides a cubical switchboard removes damp drying device, includes shell 1, fixed plate 2, ventilation pipe 3, loading board 4, exhaust fan 5, the cabinet body 6 and the cover body 7, its characterized in that: the top of the shell 1 is vertically provided with a vertical column 8, the top of the shell 1 is provided with an air inlet 9, the side wall of the bottom of the shell 1 is provided with a shutter 10, a bracket of the shell 1 and the vertical column 8 is connected through welding, the connection strength between the shell 1 and the vertical column 8 is enhanced, airflow is prevented from flowing back into the shell 1 through the shutter 10, the fixed plate 2 is transversely arranged in the shell 1, the fixed plate 2 is provided with a storage battery 12 and a controller 13, the back of the fixed plate 2 is provided with a humidity sensor 14, the fixed plate 2 is connected with the shell 1 through welding, the connection strength between the shell 1 and the fixed plate 2 is enhanced, the stability of the storage battery 12, the controller 13 and the humidity sensor 14 can also be improved, the vent pipe 3 vertically penetrates through the fixed plate 2, the bearing plate 4 is transversely arranged in the shell 1 below the vent pipe 3, a fixed plate 2 is arranged between the bottom of the bearing plate 4 and the bottom of the shell 1, a vent hole 18 is arranged on the bearing plate 4, the exhaust fan 5 is arranged on a positioning plate 19, the air flow in the shell 1 below the bearing plate 4 is discharged from the exhaust fan 5 under the action of the exhaust fan 5, the air flow above the bearing plate 4 flows downwards through the vent hole 18 to generate negative pressure in the shell 1, the air flow outside the shell 1 flows into the shell 1 above the fixed plate 2 through an air inlet 9, the air flow above the fixed plate 2 flows downwards through a vent pipe 3, an air discharge groove 16 on the vent pipe 3 enables the air flow to be uniformly discharged, the dry air flow is uniformly distributed in the shell 1 to perform uniform dehumidification treatment on the switch cabinet, the dehumidification efficiency and the dehumidification effect of the switch cabinet are improved, the cabinet body 6 is arranged on the bearing plate 4, the cover body 7 is arranged on the stand column 8, and a solar panel 21 is arranged on the surface of the cover body 7, can play the effect that blocks wind and rain to the cubical switchboard through the cover body 7, avoid the rainwater to enter into in the shell 1 from the fresh air inlet 9, improve the security of cubical switchboard in the course of the work, the sunlight can absorb the sunlight by the board, convert light energy into the electric energy, carry the electric energy to battery 12 in through connecting wire 22, for controller 13, humidity inductor 14, exhaust fan 5's work provides the electric energy, humidity inductor 14 can sense humidity in the cubical switchboard, when humidity is great in the cubical switchboard, controller 13 can control exhaust fan 5 work, make the air current in the shell 1 discharge fast, accelerate the air current velocity of flow in the cubical switchboard, improve the dehumidification efficiency and the dehumidification effect of cubical switchboard.
Preferably, the fresh air inlet 9 at the top of the shell 1 is internally provided with a filter screen 11, a drying agent layer 15 of a vertical structure is arranged between the top of the shell 1 and the fixed plate 2, the filter screen 11 is made of an activated carbon material, the air flow entering the shell 1 through the fresh air inlet 9 can be filtered through the filter screen 11, impurities in the air flow are adsorbed, the situation that dust in the air enters the shell 1 along with the air flow to pollute electronic components is avoided, the moisture in the filtered air flow can be adsorbed through the drying agent layer 15, the drying degree of the air flow is improved, the dehumidifying treatment is carried out on the switch cabinet, the drying degree of the switch cabinet is improved, and the safety performance of the switch cabinet in the working process is further improved.
Preferably, shell 1 internal fixation board 2 below ventilation pipe 3 on seted up exhaust groove 16, exhaust fan 5's effect is discharged the air current in the shell 1 of loading board 4 below from exhaust fan 5, the air current of loading board 4 top flows down through ventilation hole 18, produce the negative pressure in making shell 1, the air current outside shell 1 flows into in the shell 1 of fixed plate 2 top through fresh air inlet 9, the air current of fixed plate 2 top flows down through ventilation pipe 3, exhaust groove 16 on the ventilation pipe 3 makes the air current evenly discharge, make dry air current evenly distributed in shell 1, carry out even except that the tide processing to the cubical switchboard, the efficiency and the effect of removing the tide of cubical switchboard have been improved.
Preferably, loading board 4 on be provided with a location section of thick bamboo 17, 6 bottoms of the cabinet body be provided with reference column 20 to insert a location section of thick bamboo 17 with reference column 20 in, can fix a position the cabinet body 6 through a location section of thick bamboo 17, reference column 20, avoid the cabinet body 6 to take place to rock, improve the stability of cubical switchboard, on the other hand can make the cabinet body 6 and have the certain distance between the loading board 4 through a location section of thick bamboo 17, reference column 20, the flow of the air current of being convenient for further improves the cubical switchboard remove damp efficiency and remove damp effect.
Preferably, the storage battery 12 is connected with the controller 13 and the solar panel 21 through a connecting line 22, the controller 13 is respectively connected with the humidity sensor 14 and the exhaust fan 5 through the connecting line 22, the solar panel absorbs sunlight and converts light energy into electric energy, the electric energy is transmitted into the storage battery 12 through the connecting line 22, electric energy is provided for the work of the controller 13, the humidity sensor 14 and the exhaust fan 5, the humidity sensor 14 can sense the humidity in the switch cabinet, when the humidity in the switch cabinet is high, the controller 13 can control the work of the exhaust fan 5, air flow in the shell 1 is rapidly exhausted, the air flow flowing speed in the switch cabinet is accelerated, and the dehumidifying efficiency and the dehumidifying effect of the switch cabinet are improved.
Preferably, the top of the enclosure 1 is provided with a blocking net 23, the blocking net 23 covers the air inlet 9, and the blocking net 23 can block small animals and insects from entering the enclosure 1, so that the safety of the switch cabinet is further improved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.
Claims (5)
1. The utility model provides a cubical switchboard removes damp drying device, includes shell, fixed plate, ventilation pipe, loading board, exhaust fan, the cabinet body and the cover body, its characterized in that: the shell top be provided with the stand perpendicularly, be provided with the fresh air inlet at the shell top to be provided with the shutter on shell bottom lateral wall, the fixed plate transversely set up in the shell, be provided with battery, controller on the fixed plate to be provided with the humidity inductor on the fixed plate back, the ventilation pipe vertically pass the fixed plate, the horizontal shell that sets up in the ventilation pipe below of loading board in, be provided with the locating plate between loading board and shell bottom to be provided with the ventilation hole on the loading board, the exhaust fan setting on the locating plate, the cabinet body place on the loading board, the cover body set up on the stand to at the cover body on the surface be provided with solar panel.
2. The switch cabinet dehumidifying and drying device according to claim 1, wherein: a filter screen is arranged in the air inlet hole at the top of the shell, and a drying agent layer with a vertical structure is arranged between the top of the shell and the fixed plate.
3. The switch cabinet dehumidifying and drying device according to claim 1, wherein: and a vent groove is formed on the vent pipe below the fixed plate in the shell.
4. The switch cabinet dehumidifying and drying device according to claim 1, wherein: the bearing plate is provided with a positioning cylinder, the bottom of the cabinet body is provided with a positioning column, and the positioning column is inserted into the positioning cylinder.
5. The switch cabinet dehumidifying and drying device according to claim 1, wherein: the storage battery is connected with the controller and the solar panel through connecting wires, and the controller is respectively connected with the humidity sensor and the exhaust fan through the connecting wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021034597.9U CN212137065U (en) | 2020-06-08 | 2020-06-08 | Switch cabinet dehumidifying and drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021034597.9U CN212137065U (en) | 2020-06-08 | 2020-06-08 | Switch cabinet dehumidifying and drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212137065U true CN212137065U (en) | 2020-12-11 |
Family
ID=73685730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021034597.9U Expired - Fee Related CN212137065U (en) | 2020-06-08 | 2020-06-08 | Switch cabinet dehumidifying and drying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212137065U (en) |
-
2020
- 2020-06-08 CN CN202021034597.9U patent/CN212137065U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201211 |
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| CF01 | Termination of patent right due to non-payment of annual fee |