CN202431571U - Wind wheel driving mechanism of box fan - Google Patents
Wind wheel driving mechanism of box fan Download PDFInfo
- Publication number
- CN202431571U CN202431571U CN2012200061482U CN201220006148U CN202431571U CN 202431571 U CN202431571 U CN 202431571U CN 2012200061482 U CN2012200061482 U CN 2012200061482U CN 201220006148 U CN201220006148 U CN 201220006148U CN 202431571 U CN202431571 U CN 202431571U
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- inducer
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- spur gear
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- 230000005540 biological transmission Effects 0.000 claims abstract description 38
- 239000000411 inducer Substances 0.000 claims description 50
- 210000002435 tendon Anatomy 0.000 claims description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 210000000481 breast Anatomy 0.000 claims description 3
- 238000003825 pressing Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011257 shell material Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model relates to an air guide wheel driving mechanism of a box fan, which comprises a main motor, a gear box seat, a gear box cover and a speed change gear set; the automatic transmission is characterized by further comprising a driving straight gear, a driven straight gear, a reset spring, a T-shaped transmission shaft, a self-locking limiting sleeve, a propelling sleeve and a button, wherein the driving straight gear is arranged in the gearbox base and is driven by the speed change gear set; the outer side of the gear box cover is provided with a shaft sleeve, and the propelling sleeve and the self-locking limiting sleeve are axially matched and arranged in the shaft sleeve and can axially move. The main motor driven air guide wheel mechanism of the box fan has the advantages that the driving or stopping state of the air guide wheel by the main motor can be switched by pressing the button, and the main motor driven air guide wheel mechanism of the box fan is noiseless, uniform in speed, low in cost, easy to operate and self-protection.
Description
Technical field
The utility model relates to a kind of inducer driving mechanism of rotary blade fan, belongs to the technical field of electric fan, especially rotary blade fan master motor driving inducer mechanism.
Background technique
The inducer driving mechanism of existing rotary blade fan mainly contains two kinds of driving mode: a kind of is the wind-drive that is produced by rotary blade fan self fan blade; The inducer rotating speed can be regulated through the direct or indirect axial compression inducer of rotation rosette; Simple in structure; But can't the uniform rotation of better controlled inducer, walking around when inducer fastly also can produce tangible friction noise when too fast, influences image product; Another kind is to adopt synchronous machine drives, and through independent switch control inducer uniform rotation or stop, but manufacture cost is higher relatively.Be 03273645.2 in the patent No., name is called the main motor power mentioned in the utility model patent of " rotary blade fan of the main motor direct-drive inducer " mode through three grades of deceleration tooth case gearing down rear driving inducers; Clutch for clutch control knob pulling through rotation is installed on the housing is with declutch lever to control the transmission of power; The shortcoming of this driving mode is that clutch for clutch control knob manufacture process requirement is than higher; Clutch for clutch control knob self-lock force is low; Realized not the gear separation, self-lock force is high, and operation is made troubles.Therefore little product uses in the rotary blade fan product of these two kinds of driving mode on market.
Summary of the invention
The purpose of the utility model be overcome above-mentioned shortcoming and provide a kind of noise free, at the uniform velocity, the inducer driving mechanism of low-cost, easy to operate, rotary blade fan with self-protection function.
In order to achieve the above object; The technological scheme of the utility model is: a kind of inducer driving mechanism of rotary blade fan; Comprise main motor, tooth block, tooth case lid and speed change gear group, wherein said speed change gear group is located in the tooth block and by main driven by motor, and said tooth case lid is installed on the tooth block; Said tooth block is installed on the main motor, and said main motor is installed on the fore shell of rotary blade fan; It is characterized in that also comprising initiatively spur gear, driven spur gear, Returnning spring, T shape transmission shaft, self-locking stop collar, propelling cover and button; Wherein said active spur gear is located in the tooth block and by the speed change gear group and drives; Said driven spur gear and initiatively spur gear engagement; Driven spur gear is installed in the inboard of tooth case lid, on the wall of the inner chamber of driven spur gear, is provided with more than two the axisymmetric chute around the center; The outside at said tooth case lid is provided with axle sleeve, and said propelling cover and self-locking stop collar axially cooperate is located in the axle sleeve and can moves axially, advance cover can promote the self-locking stop collar fall from the axial fit area of axle sleeve; The end of the rotating shaft of said T shape transmission shaft pass the self-locking stop collar successively and advance cover and with the button snap fit; The rotating shaft of T shape transmission shaft is with the self-locking stop collar and advance the cover gap to cooperate; The both sides at the T shape position of T shape transmission shaft are provided with flexible positioning piece; Be provided with more than two the axisymmetric locking groove around the center in the inboard of axle sleeve bottom, flexible positioning piece can cooperate with chute and locking groove respectively; Said button is installed on the inducer and can axially promotes to advance cover; Said Returnning spring is installed in the inner chamber of driven spur gear, and the one of which end is resisted against the bottom of inner chamber, and the other end is resisted against the T shape position of T shape transmission shaft.
Said speed change gear group comprises one-level rotating shaft, first-stage worm gear, driven worm screw, second-stage worm gear and secondary rotating shaft; Wherein said one-level rotating shaft is the rotating shaft of first-stage worm gear and driven worm screw; The one-level rotating shaft is installed on the tooth block, the worm meshing in the rotating shaft of said first-stage worm gear and main motor; Said secondary rotating shaft is installed on the tooth block, and said second-stage worm gear and active spur gear are installed in the secondary rotating shaft second-stage worm gear and driven worm meshing.
Said flexible positioning piece comprises clutch spring and steel ball; T shape position at said T shape transmission shaft is provided with cross through hole; The part of said clutch spring and steel ball is positioned at cross through hole, and another part of steel ball can stretch out cross through hole and also can cooperate with chute and locating slot respectively outward.
Convex tendon and centre that said self-locking stop collar cylindrical is provided with more than two are provided with through hole, and also there is the tip on the surface of convex tendon top protrusion through hole, and bit point is on a convex tendon left side or right side; Said propelling cover cylindrical is provided with plural boss, and the centre is provided with through hole, and the bottom has the isoceles triangle shape most advanced and sophisticated; Be provided with first coaxial chute that cooperates with convex tendon and the plural second coaxial chute that cooperates with boss more than two in the axle sleeve of said tooth case lid, the midfeather that two coaxial chutes form is provided with transitional slope.
Said button bosom is provided with and advances tube, and cylindrical is provided with one or above convex tendon; The end of the rotating shaft of said T shape transmission shaft passes and advances tube and clamping above that; Clamping is equipped with the inducer rosette on said inducer, and 1 or above chute are set on the intermediate hole of inducer rosette, and button is arranged in intermediate hole and convex tendon is arranged in chute.
The utility model advantage compared with prior art does; Can switch inducer by main motor driving or arrested state through pressing button, be a kind of noise free, at the uniform velocity, low-cost, easy to operate, rotary blade fan master motor driving inducer mechanism with self-protection function.
Description of drawings
Fig. 1 is the plan view of the utility model;
Fig. 2 be among Fig. 1 be in the inducer arrested state time A-A show structural representation to cuing open;
Fig. 3 is the enlarged view of local B among Fig. 2;
Fig. 4 be among Fig. 1 be in the inducer rotary state time A-A show structural representation to cuing open;
Fig. 5 is the enlarged view of the Local C among Fig. 4;
Fig. 6 is the decomposing schematic representation of the utility model;
Fig. 7 is a decomposing schematic representation of deleting fore shell, inducer, inducer rosette among Fig. 6;
Fig. 8 is the enlarged view at speed change gear group position among Fig. 7;
Fig. 9 is driven spur gear perspective view;
Figure 10 is the transmission shaft perspective view;
Figure 11 is a self-locking stop collar perspective view;
Figure 12 advances the cover perspective view;
Figure 13 is a tooth case lid perspective view;
Figure 14 is the button perspective view;
Figure 15 is an inducer rosette perspective view.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.
Shown in Fig. 1 to 15; A kind of inducer driving mechanism of rotary blade fan; Comprise main motor 1, tooth block 2, tooth case lid 16 and speed change gear group, wherein said speed change gear group is located in the tooth block 2 and by main motor 1 and drives, and said tooth case lid 16 is installed on the tooth block 2; Said tooth block 2 is installed on the main motor 1, and said main motor 1 is installed on the fore shell 18 of rotary blade fan; The utility model characteristics are also to comprise initiatively spur gear 8, driven spur gear 9, Returnning spring 10, T shape transmission shaft 13, self-locking stop collar 14, propelling cover 15 and button 17; Wherein said active spur gear 8 is located in the tooth block 2 and by the speed change gear group and drives; Said driven spur gear 9 and initiatively spur gear 8 engagements; Driven spur gear 9 is installed in the inboard of tooth case lid 16; On the wall of the inner chamber 91 of driven spur gear 9, be provided with more than two the axisymmetric chute 92 around the center, the chute quantity that is provided with in the present embodiment is 12, also chute quantity can be set according to actual needs; Be provided with axle sleeve 161 in the outside of said tooth case lid 16, said propelling cover 15 and self-locking stop collar 14 axially cooperate is located in the axle sleeve 161 and can moves axially, and advances cover 15 can promote the axial fit area of 14 disengagings of self-locking stop collar and axle sleeve 161; The end of the rotating shaft 131 of said T shape transmission shaft 13 pass self-locking stop collar 14 successively and advance cover 15 and with button 17 snap fit; The rotating shaft 131 of T shape transmission shaft 13 is with self-locking stop collar 14 and advance cover 15 Spielpassung also rotatable; The both sides at the T shape position of T shape transmission shaft 13 are provided with flexible positioning piece; Be provided with more than 2 axisymmetric locking groove 166 around the center in the inboard of axle sleeve 161 bottoms; The locking groove quantity that is provided with in the present embodiment is 12, also locking groove quantity can be set according to actual needs, and flexible positioning piece can cooperate with chute 92 and locking groove 166 respectively; Said button 17 is installed on the inducer 19 and can axially promotes to advance cover 15; Said Returnning spring 10 is installed in the inner chamber 91 of driven spur gear 9, and the one of which end is resisted against the bottom of inner chamber 91, and the other end is resisted against the T shape position of T shape transmission shaft 13, and self-locking stop collar 14 can be got back to the axial fit area of axle sleeve again under the effect of Returnning spring 10.
In the present embodiment; Said speed change gear group comprises one-level rotating shaft 3, first-stage worm gear 4, driven worm screw 5, second-stage worm gear 6 and secondary rotating shaft 7; Wherein said one-level rotating shaft 3 is the rotating shaft of first-stage worm gear 4 and driven worm screw 5; One-level rotating shaft 3 is installed on the tooth block 2, worm screw 101 engagements in the rotating shaft of said first-stage worm gear 4 and main motor 1; Said secondary rotating shaft 7 is installed on the tooth block 2, and said second-stage worm gear 6 and active spur gear 8 are installed in the secondary rotating shaft 7, second-stage worm gear 6 and driven worm screw 5 engagements.
In the present embodiment; Said flexible positioning piece comprises clutch spring 11 and steel ball 12; T shape position at said T shape transmission shaft 13 is provided with cross through hole 133; The part of said clutch spring 11 and steel ball 12 is positioned at cross through hole 133, and another part of steel ball 12 can stretch out outside the cross through hole 133 and can cooperate with chute 92 and locking groove 166 respectively.
Convex tendon 141 and centre that said self-locking stop collar 14 cylindricals are provided with more than two are provided with through hole 143, are provided with three convex tendons 141 in the present embodiment, and also there is tip 142 on the surface of convex tendon 141 tops protrusion through hole 143, and most advanced and sophisticated 142 are in a convex tendon left side or right side; Said propelling is overlapped 15 cylindricals plural boss 151 is set, and is provided with six boss 151 in the present embodiment, and the centre is provided with through hole 153, and isoceles triangle shape most advanced and sophisticated 152 is arranged at the bottom; The midfeather 163 that is provided with three first coaxial chutes 161 that cooperate with convex tendon 141 and six second coaxial chute 162, two coaxial chutes formation that cooperate with boss 151 in the axle sleeve 161 of said tooth case lid 16 is provided with transitional slope 164.
In the present embodiment, said button 17 bosoms are provided with and advance tube 171, and cylindrical is provided with one or above convex tendon 172; The end of the rotating shaft 131 of said T shape transmission shaft 13 is passed and is advanced tube 171 and clamping above that; Clamping is equipped with inducer rosette 20 on said inducer 19, and 1 or above chute 202 are set on the intermediate hole 201 of inducer rosette 20, and button 17 is arranged in intermediate hole 201 and convex tendon 172 is arranged in chute 202.
During installation; Main motor 1 is fixed on the fore shell 18 through screw, and first-stage worm gear 4, driven worm screw 5 are installed on the tooth block 2 through one-level rotating shaft 3, and second-stage worm gear 6, active spur gear 8 are installed on the tooth block 2 through secondary rotating shaft 7; Tooth block 2 is fixed on the main motor 1 through screw; Driven spur gear 9 is installed on the dome 167 of tooth case lid 16, and tooth case lid 16 is fixed on the tooth block 2 through screw, and self-locking stop collar 14 is installed on the axle sleeve 161 of tooth case lid 16 with advancing cover 15; The convex tendon 141 of self-locking stop collar 14 is arranged in the first coaxial chute 165; Advance the boss 151 of cover 15 to be arranged in the second coaxial chute 162, the through hole 143 and the through hole 153 that advances cover 15 of self-locking stop collar 14 passed in the rotating shaft 131 of T shape transmission shaft 13, and button 17 is connected with T shape transmission shaft 13 through the elasticity button 132 on the T shape transmission shaft 13; Convex tendon 172 alignment on the button 17 are inserted in the chute 202 on the inducer rosette 20; Clutch spring 11 is installed in the through hole 133 of transmission shaft 13 settings, and two steel balls 12 are placed on clutch spring 11 two ends, and Returnning spring 10 is installed between T shape transmission shaft 13 and the driven spur gear 9.Inducer 19 is installed on the fore shell 18, and inducer rosette 20 is fixed on the inducer 20 through elasticity button 203.
When inducer is asked to be in arrested state, like Fig. 2, shown in 3, the convex tendon 141 on the self-locking stop collar 14 is stuck in the first coaxial chute 165 in the axle sleeve 161 of tooth case lid 16; T shape transmission shaft 13 is in away from driven spur gear 9 outer fixs; T shape transmission shaft 13 and driven spur gear 9 are contactless, and two steel balls 12 receive 11 effects of clutch spring force, are stuck on the locking groove 166 of tooth case lid 16; Make T shape transmission shaft 13 be locked and to rotate; Also be locked indirectly and can not rotate with the inducer 19 of its associated, when inducer 19 is rotated by artificial external force, drive T shape transmission shaft 13 indirectly and rotate; Two steel ball 12 stressed back compression clutch spring 11 automatic adjustable ranges slide in other locking groove of tooth case lid 16, up to forces.
When inducer is asked to switch to negative load condition from arrested state; Like Fig. 4, shown in 5; Press the button 17, the propelling tube 171 on the button 17 promotes to advance cover 15, advances cover 15 to promote self-locking stop collar 14; Self-locking stop collar 14 pushes T shape transmission shaft 13 in the inner chamber 91 of driven spur gear 9, and self-locking stop collar 14 can skid off from the first coaxial chute 165 in the axle sleeve on the tooth case lid 16 161 and rotate after being advanced to certain position; When release button 17, T shape transmission shaft 13 return and promote self-locking stop collar 14 outward under Returnning spring 10 elastic force effects, self-locking stop collar 14 tip 142 on convex tendon 141 tops is in this course withstood by the root of the second coaxial chute 162; Two steel balls 12 receive the power effect of clutch spring 11; Be stuck in the chute 91 in the driven spur gear 9, make T shape transmission shaft 13 driven, also driven indirectly with the inducer 19 of its associated by driven spur gear 9; When inducer 19 during by artificial external force stop; T shape transmission shaft 13 is also by stop, and driven spur gear 9 rotates two steel balls, 12 extruding continued at rotation process convexity wall 92, up to forces.
When inducer switches to arrested state from negative load condition; Only need to unclamp behind the pressing button 17 once more; Convex tendon 141 on the self-locking stop collar 14 is stuck in the first coaxial chute 165 in the axle sleeve of tooth case lid 16 again in this course, and inducer 19 is in arrested state.
Claims (5)
1. the inducer driving mechanism of a rotary blade fan; Comprise main motor (1), tooth block (2), tooth case lid (16) and speed change gear group; Wherein said speed change gear group is located in the tooth block (2) and by main motor (1) and drives; Said tooth case lid (16) is installed on the tooth block (2), and said tooth block (2) is installed on the main motor (1), and said main motor (1) is installed on the fore shell (18) of rotary blade fan; It is characterized in that also comprising initiatively spur gear (8), driven spur gear (9), Returnning spring (10), T shape transmission shaft (13), self-locking stop collar (14), propelling cover (15) and button (17); Wherein said active spur gear (8) is located in the tooth block (2) and by the speed change gear group and drives; Said driven spur gear (9) and initiatively spur gear (8) engagement; Driven spur gear (9) is installed in the inboard of tooth case lid (16), on the wall of the inner chamber (91) of driven spur gear (9), is provided with more than two the axisymmetric chute (92) around the center; Be provided with axle sleeve (161) in the outside of said tooth case lid (16); Said propelling cover (15) and self-locking stop collar (14) axially cooperate is located in the axle sleeve (161) and can moves axially, advance cover (15) can promote self-locking stop collar (14) fall from the axial fit area of axle sleeve (161); The end of the rotating shaft (131) of said T shape transmission shaft (13) pass self-locking stop collar (14) successively and advance cover (15) and with button (17) snap fit; The rotating shaft (131) of T shape transmission shaft (13) is with self-locking stop collar (14) and advance cover (15) Spielpassung; The both sides at the T shape position of T shape transmission shaft (13) are provided with flexible positioning piece; Be provided with more than two the axisymmetric locking groove (166) around the center in the inboard of axle sleeve (161) bottom, flexible positioning piece can cooperate with chute (92) and locking groove (166) respectively; Said button (17) is installed in inducer (19) and goes up and can axially promote to advance cover (15); Said Returnning spring (10) is installed in the inner chamber (91) of driven spur gear (9), and the one of which end is resisted against the bottom of inner chamber (91), and the other end is resisted against the T shape position of T shape transmission shaft (13).
2. the inducer driving mechanism of rotary blade fan according to claim 1; It is characterized in that said speed change gear group comprises one-level rotating shaft (3), first-stage worm gear (4), driven worm screw (5), second-stage worm gear (6) and secondary rotating shaft (7); Wherein said one-level rotating shaft (3) is the rotating shaft of first-stage worm gear (4) and driven worm screw (5); One-level rotating shaft (3) is installed on the tooth block (2), worm screw (101) engagement in the rotating shaft of said first-stage worm gear (4) and main motor (1); Said secondary rotating shaft (7) is installed on the tooth block (2), and said second-stage worm gear (6) and active spur gear (8) are installed in the secondary rotating shaft (7), second-stage worm gear (6) and driven worm screw (5) engagement.
3. the inducer driving mechanism of rotary blade fan according to claim 1; It is characterized in that said flexible positioning piece comprises clutch spring (11) and steel ball (12); T shape position at said T shape transmission shaft (13) is provided with cross through hole (133); The part of said clutch spring (11) and steel ball (12) is positioned at cross through hole (133), and another part of steel ball (12) can stretch out outside the cross through hole (133) and can cooperate with chute (92) and locating slot (166) respectively.
4. the inducer driving mechanism of rotary blade fan according to claim 1; It is characterized in that convex tendon (141) and centre that said self-locking stop collar (14) cylindrical is provided with more than two are provided with through hole (143); Also there is tip (142) on the surface of convex tendon top protrusion through hole (143), and bit point is on a convex tendon left side or right side; Said propelling cover (15) cylindrical is provided with plural boss (151), and the centre is provided with through hole (153), and isoceles triangle shape most advanced and sophisticated (152) is arranged at the bottom; Be provided with first coaxial chute (161) that cooperates with convex tendon (141) and the plural second coaxial chute (162) that cooperates with boss (151) more than two in the axle sleeve (161) of said tooth case lid (16), the midfeather (163) that two coaxial chutes form is provided with transitional slope (164).
5. the inducer driving mechanism of rotary blade fan according to claim 1 is characterized in that said button (17) bosom is provided with propelling tube (171), and cylindrical is provided with one or above convex tendon (172); The end of the rotating shaft (131) of said T shape transmission shaft (13) passes and advances tube (171) and clamping above that; Go up clamping at said inducer (19) inducer rosette (20) is installed; 1 or above chute (202) are set on the intermediate hole (201) of inducer rosette (20), and button (17) is arranged in intermediate hole (201) and convex tendon (172) is arranged in chute (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200061482U CN202431571U (en) | 2012-01-09 | 2012-01-09 | Wind wheel driving mechanism of box fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200061482U CN202431571U (en) | 2012-01-09 | 2012-01-09 | Wind wheel driving mechanism of box fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202431571U true CN202431571U (en) | 2012-09-12 |
Family
ID=46781022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200061482U Expired - Lifetime CN202431571U (en) | 2012-01-09 | 2012-01-09 | Wind wheel driving mechanism of box fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202431571U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896613A (en) * | 2015-06-25 | 2015-09-09 | 珠海格力电器股份有限公司 | Air condensing units and air conditioning unit |
| CN106224277A (en) * | 2016-08-30 | 2016-12-14 | 珠海格力电器股份有限公司 | Blade-rotating fan cap structure and blade-rotating fan |
| CN107725439A (en) * | 2017-11-09 | 2018-02-23 | 广东美的环境电器制造有限公司 | Fan |
-
2012
- 2012-01-09 CN CN2012200061482U patent/CN202431571U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896613A (en) * | 2015-06-25 | 2015-09-09 | 珠海格力电器股份有限公司 | Air condensing units and air conditioning unit |
| CN106224277A (en) * | 2016-08-30 | 2016-12-14 | 珠海格力电器股份有限公司 | Blade-rotating fan cap structure and blade-rotating fan |
| CN107725439A (en) * | 2017-11-09 | 2018-02-23 | 广东美的环境电器制造有限公司 | Fan |
| CN107725439B (en) * | 2017-11-09 | 2023-04-25 | 广东美的环境电器制造有限公司 | Fan with fan body |
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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 |
Owner name: MIDEA GROUP CO., LTD. Free format text: FORMER NAME: MEIDI GROUP CO. LTD. |
|
| CP03 | Change of name, title or address |
Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Patentee after: MIDEA GROUP Co.,Ltd. Address before: 528311 Beijiao, Foshan, Shunde District, the town of Guangdong, the United States Avenue, No. 6 Patentee before: Midea Group |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: GD MIDEA ENVIRONMENT APPLIANCES MFG Co.,Ltd. Assignor: MIDEA GROUP Co.,Ltd. Contract record no.: 2013440000205 Denomination of utility model: Air guiding wheel driving mechanism of box fan Granted publication date: 20120912 License type: Exclusive License Record date: 20130520 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120912 |