CN203851308U - Vehicle front window glass electric heating device - Google Patents
Vehicle front window glass electric heating device Download PDFInfo
- Publication number
- CN203851308U CN203851308U CN201420223700.2U CN201420223700U CN203851308U CN 203851308 U CN203851308 U CN 203851308U CN 201420223700 U CN201420223700 U CN 201420223700U CN 203851308 U CN203851308 U CN 203851308U
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- Prior art keywords
- front screen
- heating
- extremely cold
- contactor
- vehicle front
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- Expired - Lifetime
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- 238000005485 electric heating Methods 0.000 title abstract description 8
- 239000005357 flat glass Substances 0.000 title abstract 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 140
- 239000011521 glass Substances 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 230000006698 induction Effects 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 3
- 238000010257 thawing Methods 0.000 abstract description 3
- 230000008859 change Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 206010039203 Road traffic accident Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Abstract
The utility model relates to a vehicle front window glass electric heating device. Electric heating wires of front window glass are divided into a plurality of heating areas with the same resistance value; electric heating wires of each heating area are led out by buses so as to be connected with an external power source; the device is provided with a temperature controller for inducting the temperature of the front window glass and an extremely cold mode starting switch; the temperature controller and the extremely cold mode starting switch are connected with the buses of the plurality of heating areas through a series-connection and parallel-connection conversion control circuit, so that series-connection and parallel-connection conversion of the electric heating wires of the plurality of heating areas can be realized. With the vehicle front window glass electric heating device of the utility model adopted, double-power heating of the front window glass can be realized. According to the vehicle front window glass electric heating device, normal power is adopted under a normal low-temperature condition, and the device is switched to extremely cold power under an extremely cold condition, and therefore, fast deicing and defrosting can be realized, and a defect that single heating power cannot satisfy requirements of environment temperature change can be eliminated, and at the same time, damage to the glass which is caused by single heating power when temperature is high can be avoided.
Description
Technical field
The utility model relates to a kind of vehicle front screen, and the front screen electric heater unit of particularly applying on the rail vehicles such as EMU belongs to rail vehicle manufacturing technology field.
Background technology
The rail vehicles such as EMU are in the winter time or in the time of the operation of extremely cold area, capital forms one deck mist or frost or even one deck ice on front screen surface, have a strong impact on driver and passenger's sight line, and driver cannot remove cleaning glass window in the process of moving, thereby cause the inconvenience of travelling, when serious, may cause traffic accident.
Common way is on front screen, to arrange layer of metal heating wire, then accesses 12V or 24V voltage, and the heat heating front screen that utilizes heating wire to produce, with the deicing that defrosts.At present, front screen electric heating generally adopts single power, is set as 500～700w/m2, and the area that this heating power is-25 DEG C in environment minimum temperature is suitable for.But be the extremely cold area of-40 DEG C even lower in environment minimum temperature, above-mentioned heating power reaches the requirement of the deicing that do not defrost at all, and the electrical heating power of front screen should further increase.
Learn according to deicing test, when environment minimum temperature is-40 DEG C, more than the heating power of front screen must reach 2100w, as still adopted single power, in the time that ambient temperature is higher, excessive heating power can affect the optical property of glass, and optical skew phenomenon occurs.
Therefore, need to design a kind of extremely cold environment that had both met-40 DEG C, adapt to again the front screen electric heater unit of normal low temp.
Utility model content
The utility model main purpose is to address the above problem and is not enough, and a kind of glass and vehicle front screen electric heater unit simple in structure of all can heating under utmost point low temperature environment and home cryogenic conditions is provided.
For achieving the above object, the technical solution of the utility model is:
A kind of vehicle front screen electric heater unit, comprise single-glass or compound glass, at glass surface or glass sandwich inside, electrical heating wire is installed, the electrical heating wire of described front screen is divided into multiple heating regions that resistance value is identical, the electrical heating wire of each heating region is drawn with external power source and is connected by bus, this device is also provided with temperature controller and the extremely cold pattern starting switch for responding to front screen temperature, described temperature controller is changed with extremely cold pattern starting switch is connected the electrical heating wire of realizing multiple heating regions with the bus of multiple heating regions connection in series-parallel by connection in series-parallel conversion control circuit, described temperature controller is connected with control power supply respectively with extremely cold pattern starting switch.
Further, the electrical heating wire of described front screen is divided into two heating regions that resistance value is identical, is respectively the first heating region and the second heating region.
Further, described connection in series-parallel conversion control circuit comprises contactor K1, contactor K2 and control relay R1, after the coils from parallel connection of coils of contactor K1 and contactor K2 between the input and temperature controller of access control power supply, the normally open contact R1 ' of control relay R1 connects with contactor K2, the normally closed interlock R1 of control relay R1 " connect with contactor K1, the coil of control relay R1 is connected with extremely cold pattern starting switch, external power source is connected the electrical heating wire of the first heating region and the second heating region through the normally opened contact of contactor K1, between the inlet highway of the input of contactor K1 normally opened contact and the electrical heating wire of output and the second heating region and output bus, access the normally opened contact of contactor K2 simultaneously.
Further, be all connected in series a circuit breaker at the electrode input end of described external power source and control power supply.
Further, described extremely cold pattern starting switch connects a time-delay relay KTD for overtime protection, in the coil series connection entry loop of the normally opened contact of time-delay relay KTD and control relay R1.
Further, described temperature controller is pasted the inner surface that is fixed on described front screen.
Further, described extremely cold pattern starting switch is hand switch or the temperature detect switch (TDS) for induction outdoor temperature.
Further, described extremely cold pattern starting switch is self-resetting switch.
Further, the 220V AC power that described external power source provides for vehicle.
To sum up content, a kind of vehicle front screen electric heater unit described in the utility model, compared with prior art, tool has the following advantages:
(1) front screen has been realized two power heatings, in normal low temp situation, adopt normal power, in extremely cold situation, select to switch extremely cold power by driver, realize quick deicing, defrosting, prevent that single heating power from can not take into account the defect of variation of ambient temperature, can also avoid in the time that temperature is higher, due to the damage that adopts single high-power heating to make pair glass simultaneously.
(2) be provided with time-out protection function, after front screen is with extremely cold power heating 10min, system automatically switches to normal power heating; prevent after the extremely cold switch of driver operation; forget recovery, glass is in very fast heating mode overlong time, the damage of making pair glass.
(3) requirement of the high and cold motor train unit low temperature environment of operation be can meet, high and cold motor train unit operating environment and pattern adapted to, overall performance advanced person, safe and reliable.
Brief description of the drawings
Fig. 1 is the utility model front screen structural representation;
Fig. 2 is the utility model front screen electric heater unit structural representation;
Fig. 3 is the utility model electric heater unit control circuit figure.
As shown in Figure 1 to Figure 3, front screen 1, the first heating region 1a, the second heating region 1b, electrical heating wire 2, bus-bar 3, temperature controller 4, extremely cold pattern starting switch 5.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:
Shown in Fig. 1 and Fig. 2, the utility model provides a kind of vehicle front screen electric heater unit, is specially adapted to the rail vehicles such as the motor train unit moved in the adverse circumstances such as-40 DEG C of extremely cold, high dusts storm, high temperature.The front screen 1 of the rail vehicles such as motor train unit comprises single-glass or compound glass, at glass surface or glass sandwich inside, electrical heating wire 2 is installed, and to heat front screen 1, melts rapidly ice and snow on glass etc.In the middle of front screen 1, it is transparent region, for driver observation car external environment, surrounding one circle is opaque region, bus-bar 3 is set in zone of opacity, 3 of bus-bars are arranged in parallel many wavy electrical heating wires 2, length, spacing by controlling electrical heating wire 2 to be to control the resistance value of heating region, thereby controls the heating power of front screen 1.
Shown in Fig. 1 and Fig. 2, the electrical heating wire of front screen 12 is divided into multiple heating regions that resistance value is identical, ensures overall front screen 1 homogeneous heating.In the present embodiment, ensureing under the prerequisite of heating effect, for simplified structure and control mode, preferably the electrical heating wire of front screen 12 is divided into identical two heating regions, be respectively the first heating region 1a and the second heating region 1b, the first heating region 1a is identical with the resistance value of the second heating region 1b.The first heating region 1a draws 2 bus A, B, and the second heating region 1b draws 2 bus C, D, and bus A, B, C, D are connected with external power source.In the present embodiment, external power source, for the 220V AC power that vehicle provides, can be simplified whole circuit structure, also can simplify control mode simultaneously.
When the electrical heating wire 2 of the first heating region 1a and the second heating region 1b is connected, the heating power of overall electrical heating wire 2 is less, is set as 550w/m
2, when the electrical heating wire 2 of the first heating region 1a and the second heating region 1b is in parallel, the heating power of overall electrical heating wire 2 is larger, is 2200 (4X550) w/m
2.Therefore,, when outdoor environment temperature is greatly when normal low temp situation (25 DEG C of left and right), the electrical heating wire 2 of controlling the first heating region 1a and the second heating region 1b is connected in series, with normal power (550w/m
2) heating front screen 1, and in the time of the low extremely cold low temperature condition (40 DEG C of left and right) of outdoor environment temperature, be in parallel by the electrical heating wire of two heating regions 2 by serial conversion, with extremely cold power (2200w/m
2) heating front screen 1, realize deicing fast, defrosting under utmost point low temperature condition, avoid occurring because sight line is unclear traffic accident.This device makes front screen 1 realize two power heatings, not only can prevent single heating power can not take into account outdoor environment temperature change defect, can also avoid in the time that outdoor environment temperature is higher, only adopt single high-power heating to cause the damage to front screen 1 simultaneously.
As shown in figs. 1 and 3, control in order to realize simply and accurately, this device is also provided with temperature controller 4 and the extremely cold pattern starting switch 5 for responding to front screen 1 temperature.Wherein, temperature controller 5 is pasted and is fixed on the inner surface of front screen 1, and draws 2 bus E, F and be connected with control power supply.Extremely cold pattern starting switch 5 is installed on the operating desk in drivers' cab, facilitates driver operation, and extremely cold pattern starting switch 5 is connected with control power supply too, and controlling power supply is the 220V AC power that drivers' cab operating desk provides.Temperature controller 4 is connected with the electrical heating wire 2 of the first heating region 1a and the second heating region 1b by connection in series-parallel conversion control circuit with extremely cold pattern starting switch 5, realizes the connection in series-parallel conversion of the electrical heating wire 2 of the first heating region 1a and the second heating region 1b.
As shown in Figure 3, connection in series-parallel conversion control circuit comprises contactor K1, contactor K2, a control relay R1 and a time-delay relay KTD, and time-delay relay KTD plays a part overtime protection.After the coils from parallel connection of coils of contactor K1 and contactor K2 between the input of access control power supply and temperature controller 4, the normally open contact R1 ' of control relay R1 connects with the coil of contactor K2, the normally closed interlock R1 of control relay R1 " connect with the coil of contactor K1, in the coil series connection entry loop of the normally opened contact of time-delay relay KTD and control relay R1, the coil of time-delay relay KTD is connected with extremely cold pattern starting switch 5, external power source is connected the electrical heating wire 2 of the first heating region 1a and the second heating region 1b through the normally opened contact of contactor K1, between the input of contactor K1 normally opened contact and the inlet highway C of the electrical heating wire 2 of the second heating region 1b and access the normally opened contact of contactor K2 between the output of contactor K1 normally opened contact and the output bus D of the electrical heating wire 2 of the second heating region 1b simultaneously, all be connected in series respectively again a circuit breaker E1 at external power source and two electrode input ends of controlling power supply, E2, E3.
Extremely cold pattern starting switch 5 can adopt hand switch, according to the frost situation manual operation of front screen 1, start extremely cold heating mode by driver, also can adopt temperature detect switch (TDS), temperature detect switch (TDS) induction outdoor environment temperature, and be switched on or switched off according to the variation of outdoor environment temperature.Extremely cold pattern starting switch 5 adopts self-resetting switch, and to simplify control mode, controlled the heating time of extremely cold pattern by time-delay relay KTD.
As shown in Figure 3, when in normal heating pattern, and when temperature controller 4 is closed, extremely cold pattern starting switch 5 disconnects, control relay R1 dead electricity, contactor K1 obtains electric, the normally opened contact closure of contactor K1, the electrical heating wire 2 of the first heating region 1a and the second heating region 1b is connected in series, and the resistance value of electrical heating wire 2 is larger, heating power is little, and this process is pressed smaller power value (550w/m
2) heating front screen 1.
When driver presses extremely cold pattern starting switch 5, or outdoor environment temperature is while being low to moderate-40 DEG C, extremely cold pattern starting switch 5 is connected, and when temperature controller 4 is closed, time-delay relay KTD must establish beginning timing by cable, control relay R1 obtains electric simultaneously, contactor K1 dead electricity, contactor K2 obtains electric, the normally opened contact of contactor K1 disconnects, the closed connection of normally opened contact of contactor K2, the electrical heating wire 2 of the first heating region 1a and the second heating region 1b is converted to be connected in parallel, the resistance value of electrical heating wire 2 is less, heating power increases, this process is by relatively high power value (2200w/m
2) front screen 1 is carried out to very fast heating.Time-delay relay KTD reaches the time when set point, the present embodiment, through lot of experiments, time set point is made as to 10 minutes, time-delay relay KTD dead electricity after 10 minutes, control relay R1 dead electricity, contactor K2 dead electricity, contactor K1 obtains electric, the electrical heating wire 2 of the first heating region 1a and the second heating region 1b recovers to be connected in series, with normal heating power 550w/m
2front screen 1 is heated.
Temperature controller 4 is responded to the temperature of front screen 1; when front screen 1 temperature is in preset lower limit or when following; temperature controller 4 closures; start front screen 1 to heat; when front screen 1 temperature is in capping value or when above; temperature controller 4 disconnects, and stops front screen 1 to heat, and like this front screen 1 is played to good overheat protective function.Determine through a large amount of tests, the preset lower limit of temperature controller 4 is 15 DEG C, and the capping value of temperature controller 4 is 28 DEG C.
Describe in detail and utilize above-mentioned electric heater unit front screen to be carried out to the method for deicing below, specifically comprise the steps:
1, power on, temperature controller 4 is responded to the temperature of front screen 1, when front screen 1 temperature is in 15 DEG C of preset lower limit or when following, temperature controller 4 is closed to be connected, automatically start normal heating pattern, now, the electrical heating wire 2 of the first heating region 1a and the second heating region 1b is connected in series, by smaller power value (550w/m
2) heating front screen 1, in the time that front screen 1 temperature is raised to 28 DEG C of capping values, temperature controller 4 disconnects, and stops front screen 1 to heat.
2,, when outdoor environment temperature is extremely low, driver artificially judges when front screen 1 needs quick deicing, manually presses extremely cold pattern starting switch 5, starts extremely cold heating mode; Or, induction outdoor environment temperature reaches set point (40 DEG C) the cold pattern starting switch 4 of trigger electrode automatically, start extremely cold heating mode, now, the electrical heating wire 2 of the first heating region 1a and the second heating region 1b by serial conversion for being connected in parallel, by relatively high power value (2200w/m
2) very fast heating front screen 1.
Start while extremely trembling with fear pattern starting switch 5, time-delay relay KTD starts timing, after 10 minutes, automatically switching to normal heating pattern continues front screen 1 to heat, until in the time that front screen 1 temperature continues to be raised to 28 DEG C of capping values, temperature controller 4 disconnects, and stops front screen 1 to heat.
As mentioned above, given scheme content, can derive similar technical scheme by reference to the accompanying drawings.In every case be the content that does not depart from technical solutions of the utility model, any simple modification, equivalent variations and the modification above embodiment done according to technical spirit of the present utility model, all still belong in the scope of technical solutions of the utility model.
Claims (9)
1. a vehicle front screen electric heater unit, comprise single-glass or compound glass, at glass surface or glass sandwich inside, electrical heating wire is installed, it is characterized in that: the electrical heating wire of described front screen is divided into multiple heating regions that resistance value is identical, the electrical heating wire of each heating region is drawn with external power source and is connected by bus, this device is also provided with temperature controller and the extremely cold pattern starting switch for responding to front screen temperature, described temperature controller is changed with extremely cold pattern starting switch is connected the electrical heating wire of realizing multiple heating regions with the bus of multiple heating regions connection in series-parallel by connection in series-parallel conversion control circuit, described temperature controller is connected with control power supply respectively with extremely cold pattern starting switch.
2. vehicle front screen electric heater unit according to claim 1, is characterized in that: the electrical heating wire of described front screen is divided into two heating regions that resistance value is identical, is respectively the first heating region and the second heating region.
3. vehicle front screen electric heater unit according to claim 2, it is characterized in that: described connection in series-parallel conversion control circuit comprises contactor K1, contactor K2 and control relay R1, after the coils from parallel connection of coils of contactor K1 and contactor K2 between the input and temperature controller of access control power supply, the normally open contact R1 ' of control relay R1 connects with contactor K2, the normally closed interlock R1 of control relay R1 " connect with contactor K1, the coil of control relay R1 is connected with extremely cold pattern starting switch, external power source is connected the electrical heating wire of the first heating region and the second heating region through the normally opened contact of contactor K1, between the inlet highway of the input of contactor K1 normally opened contact and the electrical heating wire of output and the second heating region and output bus, access the normally opened contact of contactor K2 simultaneously.
4. vehicle front screen electric heater unit according to claim 3, is characterized in that: the electrode input end at described external power source and control power supply is all connected in series a circuit breaker.
5. vehicle front screen electric heater unit according to claim 3; it is characterized in that: described extremely cold pattern starting switch connects a time-delay relay KTD for overtime protection, in the coil series connection entry loop of the normally opened contact of time-delay relay KTD and control relay R1.
6. vehicle front screen electric heater unit according to claim 1, is characterized in that: described temperature controller is pasted the inner surface that is fixed on described front screen.
7. vehicle front screen electric heater unit according to claim 1, is characterized in that: described extremely cold pattern starting switch is hand switch or the temperature detect switch (TDS) for induction outdoor temperature.
8. vehicle front screen electric heater unit according to claim 7, is characterized in that: described extremely cold pattern starting switch is self-resetting switch.
9. vehicle front screen electric heater unit according to claim 1, is characterized in that: the 220V AC power that described external power source provides for vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420223700.2U CN203851308U (en) | 2014-05-04 | 2014-05-04 | Vehicle front window glass electric heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420223700.2U CN203851308U (en) | 2014-05-04 | 2014-05-04 | Vehicle front window glass electric heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203851308U true CN203851308U (en) | 2014-09-24 |
Family
ID=51564273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420223700.2U Expired - Lifetime CN203851308U (en) | 2014-05-04 | 2014-05-04 | Vehicle front window glass electric heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203851308U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104144534A (en) * | 2014-05-04 | 2014-11-12 | 南车青岛四方机车车辆股份有限公司 | Vehicle front window electric heating device and method for deicing by means of electric heating device |
| CN104470011A (en) * | 2014-11-06 | 2015-03-25 | 无锡科思电子科技有限公司 | Automobile foreside windshield anti-fog system |
| CN109032206A (en) * | 2018-08-07 | 2018-12-18 | 中国原子能科学研究院 | A kind of automatic temperature-controlled circuit based on jump type temperature switch |
| CN112783234A (en) * | 2020-12-31 | 2021-05-11 | 航天重型工程装备有限公司 | Control box temperature control system |
-
2014
- 2014-05-04 CN CN201420223700.2U patent/CN203851308U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104144534A (en) * | 2014-05-04 | 2014-11-12 | 南车青岛四方机车车辆股份有限公司 | Vehicle front window electric heating device and method for deicing by means of electric heating device |
| CN104144534B (en) * | 2014-05-04 | 2016-02-10 | 南车青岛四方机车车辆股份有限公司 | Vehicle front screen electric heater unit and utilize the method for electric heater unit deicing |
| CN104470011A (en) * | 2014-11-06 | 2015-03-25 | 无锡科思电子科技有限公司 | Automobile foreside windshield anti-fog system |
| CN109032206A (en) * | 2018-08-07 | 2018-12-18 | 中国原子能科学研究院 | A kind of automatic temperature-controlled circuit based on jump type temperature switch |
| CN112783234A (en) * | 2020-12-31 | 2021-05-11 | 航天重型工程装备有限公司 | Control box temperature control system |
| CN112783234B (en) * | 2020-12-31 | 2022-06-17 | 航天重型工程装备有限公司 | Control box temperature control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88 Patentee after: CRRC QINGDAO SIFANG CO., LTD. Address before: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88 Patentee before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160517 Address after: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88 Patentee after: CRRC QINGDAO SIFANG CO., LTD. Patentee after: CHINA RAILWAY CORPORATION Address before: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88 Patentee before: CRRC QINGDAO SIFANG CO., LTD. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| CU03 | Correction of utility model patent gazette |
Correction item: Patentee|Address|Patentee Correct: CRRC QINGDAO SIFANG CO., LTD.|Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88 False: CRRC QINGDAO SIFANG CO., LTD.|Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88|CHINA RAILWAY CORPORATION Number: 23 Volume: 32 |
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| ERR | Gazette correction | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160614 Address after: 100844 Fuxing Road, Beijing, Haidian District, No. 10 Patentee after: CHINA RAILWAY CORPORATION Patentee after: CRRC QINGDAO SIFANG CO., LTD. Address before: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88 Patentee before: CRRC QINGDAO SIFANG CO., LTD. |