CN211744244U - Dehumidifier motor with liquid braking device - Google Patents
Dehumidifier motor with liquid braking device Download PDFInfo
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- CN211744244U CN211744244U CN202020529016.2U CN202020529016U CN211744244U CN 211744244 U CN211744244 U CN 211744244U CN 202020529016 U CN202020529016 U CN 202020529016U CN 211744244 U CN211744244 U CN 211744244U
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Abstract
The utility model discloses a dehumidifier motor with liquid arresting gear, including motor body, clutch and arresting gear, arresting gear passes through the clutch with motor body and is connected, arresting gear includes liquid reserve tank, transmission shaft and impeller, is equipped with the brake fluid in the liquid reserve tank, and the transmission shaft rotates with the liquid reserve tank to be connected, and transmission shaft one end is connected with the clutch, and the other end of transmission shaft passes the liquid reserve tank setting in the liquid reserve tank, and the impeller setting just is connected with the transmission shaft in the liquid reserve tank. The utility model provides a dehumidifier motor with liquid arresting gear has avoided the friction between solid and the solid, has reduced wearing and tearing, has avoided the impact of rigid braking to the motor simultaneously, and the heat that the braking produced can also avoid the impeller overheated on can transmitting the liquid reserve tank fast through the brake fluid.
Description
Technical Field
The utility model belongs to the technical field of the motor technique and specifically relates to a dehumidifier motor with liquid arresting gear is related to.
Background
In the prior art, the types of braking systems of motor drive systems are mainly: hydraulic braking and disc braking. Hydraulic braking: hydraulic braking is a hydraulic pump that is throttled or flooded to discharge oil under pressure, thereby generating a braking torque on a braking structure coupled to the hydraulic pump. The braking torque can be adjusted by changing the flow and pressure of the discharged oil. The main drawbacks of hydraulic braking systems are: firstly, the braking mode has good low-speed performance, but a set of mechanical brake is still needed for braking and stopping; secondly, the heat energy converted from the hydraulic energy needs to be cooled by a separate cooling system; and the control valves are more, the hydraulic system is complex, and the operation and maintenance are difficult. Disc braking: disc braking is achieved by friction between the brake disc and the brake lining of the disc brake, so that a corresponding braking torque is obtained. The main drawbacks of disc brake systems are: firstly, the brake disc has poor heat dissipation performance; secondly, the brake disc is easy to strike sparks when the linear velocity is high, and has the problem of explosion prevention when used underground. Therefore, there is an urgent need to develop a dehumidifier motor with a liquid braking device, which can realize liquid braking, avoid friction between solids, reduce abrasion, and avoid impact of rigid braking on the motor.
Chinese patent application publication No. CN105715704A, published as 2017, 12 and 05, entitled "liquid damping brake system", discloses a liquid damping brake system including at least a pair of gears engaged with each other in a sealed gear box, a gear shaft penetrating through the gear box and connected with an external driving shaft, circulation pipes respectively disposed at two sides of the gears, a brake fluid circulation channel formed by connecting the gears penetrating through the gear box and a brake fluid reservoir, and at least one brake switch valve disposed on a circulation pipe for feeding the brake fluid reservoir, and achieves the purpose of deceleration braking by controlling the open/close state of the brake switch valve. The utility model discloses a be applied to the braking field after reequiping the gear box structure, the material wearing and tearing of having solved traditional friction braking are big, the braking effect is not good enough, brake with high costs scheduling problem, have effectively avoided the phenomenon of traditional friction braking because of the braking inefficacy that results in generating heat. However, the patent can not be used for motor braking, and the braking effect is not ideal.
Disclosure of Invention
The utility model discloses an overcome among the prior art hydraulic braking and the above-mentioned not enough of disc brake, provide a dehumidifier motor with liquid arresting gear, avoided the friction between solid and the solid, reduced wearing and tearing, avoided the impact of rigid braking to the motor simultaneously, the heat that the braking produced can also avoid the impeller overheated on can transmitting the liquid reserve tank fast through brake fluid.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a dehumidifier motor with liquid arresting gear, includes motor body, clutch and arresting gear, arresting gear passes through the clutch with motor body and is connected, arresting gear includes liquid reserve tank, transmission shaft and impeller, is equipped with the deceleration liquid in the liquid reserve tank, and the transmission shaft rotates with the liquid reserve tank to be connected, and transmission shaft one end is connected with the clutch, and the other end of transmission shaft passes the liquid reserve tank setting in the liquid reserve tank, and the impeller setting just is connected with the transmission shaft in the liquid reserve tank.
Among the above-mentioned technical scheme, arresting gear can set up the afterbody at motor body, sets up with motor body's output shaft relatively, also can set up in same end with motor body's output shaft, and the output shaft passes through transmission structure and divide into two output, an output power, and another output is connected with the clutch. The clutch can be a clutch commonly used in the prior art. The impeller submergence is in the brake fluid, and when motor or the machinery that the motor drove need brake, closes the clutch, and the motor body drives the transmission shaft and rotates, and then drives the impeller and rotate, and the impeller is at the speed reduction liquid internal rotation, produces the resistance, and then produces braking force and brakies the motor, and the rotational speed is faster, and braking force is big more. The impeller rotates in the speed reducing liquid to brake, so that friction between solids is avoided, abrasion is reduced, impact of rigid braking on the motor is avoided, heat generated by braking can be quickly transferred to the liquid storage tank through the brake liquid, and overheating of the impeller is avoided. The motor is locked in other modes after being decelerated.
Preferably, the brake device further comprises a speed reducer, the speed reducer is arranged between the clutch and the brake device, and one end of the transmission shaft is connected with an output shaft of the speed reducer. The speed reducer can reduce the speed of the power of the motor body, and the problem that the braking device is easy to damage due to overhigh rotating speed is avoided.
Preferably, the braking device comprises two transmission shafts and two impellers, the transmission shafts correspond to the impellers one by one, the impellers are fixed to the corresponding transmission shafts, and the two impellers are oppositely arranged and have opposite rotation directions. The two impellers are oppositely arranged in the liquid storage tank, the liquid driven by the two impellers flows in opposite directions (including radial and axial directions), the fluid is flushed to consume energy, the braking effect is further increased, and the situation that the single impeller enables the liquid to flow in a single direction to enable the braking effect to be reduced is avoided.
Preferably, the speed reducer comprises an input shaft and two output shafts, the output shafts correspond to the transmission shafts one by one, driving gears are arranged on the output shafts, driven gears are arranged on the transmission shafts, and the driving gears are meshed with the driven gears. The structure can transmit the power of the speed reducer to the two transmission shafts, and the output directions of the two output shafts are opposite, so that the rotation directions of the two transmission shafts are opposite.
Preferably, a spoiler is arranged in the liquid storage tank and fixed with the inner side wall of the liquid storage tank; the length direction of the spoiler is parallel to the rotation plane of the impeller. The spoiler can increase the flowing resistance of the deceleration liquid in the liquid storage tank, and further increase the braking effect.
Preferably, a heat dissipation plate is arranged outside the liquid storage tank, and the heat dissipation plate is fixed with the liquid storage tank. The structure can increase the outward heat dissipation effect of the liquid storage tank.
Preferably, the transmission shaft is provided with a cooling fan, the cooling fan is connected with the transmission shaft, and the cooling fan is aligned with the liquid storage tank. The structure can utilize the power on the transmission shaft to dissipate heat, and the heat dissipation effect is improved.
Preferably, the impeller comprises a wheel frame and blades, the blades comprise a connecting part and a body part, the wheel frame is fixed with the transmission shaft, the wheel frame is provided with a containing hole, the containing hole penetrates through the wheel frame and extends into the transmission shaft, and the connecting part is arranged in the containing hole and is in sliding connection with the containing hole; the device also comprises a telescopic driver, a connecting bearing and an adjusting shaft; the regulating spindle sets up in the transmission shaft and with the coaxial setting of transmission shaft, and telescopic link and the regulating spindle of flexible driver are connected and the junction sets up connection bearing, and the one end that the regulating spindle is close to the impeller is equipped with along the T type groove of diametric (al) slope, and the one end of connecting portion is equipped with the sliding part with T type groove adaptation, sliding part and T type groove sliding connection.
In the technical scheme, the body part is arranged in the accommodating hole, and when the body part rotates, the body part positioned outside the accommodating hole can drive liquid to flow. The telescopic driver can adopt driving devices such as a cylinder, an oil cylinder, a push rod motor, a motor-driven screw nut structure and the like, and can generate telescopic motion. The telescopic rod and the adjusting shaft of the telescopic driver can rotate relatively, and the adjusting shaft moves together with the telescopic rod of the telescopic driver. When the extension length of the blade needs to be adjusted, the extension length of the telescopic driver is changed, the adjusting shaft moves along with the extension length, and due to the fact that the sliding portion of the blade is connected with the T-shaped groove in a sliding mode, when the adjusting shaft moves, the blade extends out or retracts along with the adjusting shaft, the length of the extending accommodating hole is changed, the effective contact surface of the blade and liquid is changed, the generated resistance is changed, and the adjustment of the size of the braking force is achieved through adjustment of the extension length of the telescopic rod.
Preferably, a sliding groove is formed in the side wall of the accommodating hole, and a sliding piece matched with the sliding groove is arranged on the side wall of the connecting portion. The spout quantity is 2, 2 spout symmetric arrangement. The structure can ensure the reliability of the connection of the blade and the wheel frame.
Preferably, the slide groove is inclined in the circumferential direction of the accommodation hole. The structure can make the blade rotate along with the angle of inclination of spout when the blade stretches out, and then adjusts the orientation of blade, changes the resistance of liquid, and then realizes the adjustment of braking force, when making the blade stretch out, has both changed the effective area of contact of blade, has changed the angle of blade again, has reached dual regulation effect, has increased the regulating effect of braking force.
Preferably, the wheel carrier comprises an inner ring and an outer ring, the inner ring and the outer ring are fixed, the inner ring is fixed with the transmission shaft, the blade further comprises a supporting portion, the body portion is arranged between the connecting portion and the supporting portion, a supporting hole is formed in the outer ring, and the supporting portion is matched with the supporting hole and is in sliding connection with the supporting hole. The structure can support the two ends of the blade, and the connection strength of the impeller blade is guaranteed.
The utility model has the advantages that: (1) the liquid is used for braking, so that friction between solids is avoided, abrasion is reduced, impact of rigid braking on a motor is avoided, heat generated by braking can be quickly transferred to the liquid storage tank through brake fluid, and overheating of an impeller is avoided; (2) the two impellers are oppositely arranged in the liquid storage tank, the rotating liquid flow directions of the two impellers are opposite, and the energy is consumed by the fluid through opposite flushing, so that the braking effect is further increased, and the situation that the braking effect is reduced due to the unidirectional flow of the liquid by the single impeller is avoided; (3) the power on the transmission shaft is utilized for heat dissipation, so that the heat dissipation effect is improved; (4) the adjustment of the braking force can be realized; (5) when the braking force is adjusted, the effective contact area of the blades is changed, the angle of the blades is changed, the double adjusting effect is achieved, and the adjusting effect of the braking force is increased.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural diagram of an impeller adjusting mechanism in the present invention;
FIG. 3 is a schematic structural view of a blade according to the present invention;
fig. 4 is a schematic structural view of the accommodating hole of the present invention;
fig. 5 is a schematic structural view of the middle adjusting shaft of the present invention.
In the figure: the motor comprises a motor body 1, a clutch 2, a braking device 3, a liquid storage tank 3.1, a transmission shaft 3.2, an impeller 3.3, a wheel carrier 3.3.1, an inner ring 3.3.1.1, an outer ring 3.3.1.2, blades 3.3.2, a connecting part 3.3.2.1, a body part 3.3.2.2, a supporting part 3.3.2.3, a sliding part 3.3.2.4, a sliding part 3.3.2.5, a spoiler 3.4, a heat dissipation plate 3.5, an accommodating hole 3.6, a sliding groove 3.7, a supporting hole 3.8, a speed reducer 4, a driving gear 5, a driven gear 6, a heat dissipation fan 7, a telescopic driver 8, a connecting bearing 9, an adjusting shaft 10 and a T-shaped groove 10.1.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments.
Example 1:
as shown in fig. 1, a dehumidifier motor with a liquid braking device comprises a motor body 1, a clutch 2, a braking device 3 and a speed reducer 4, wherein the clutch 2 is connected with an output shaft at the tail part of the motor body 1, and the speed reducer 4 is arranged between the clutch 2 and the braking device 3; arresting gear 3 includes liquid reserve tank 3.1, two transmission shafts 3.2 and two impellers 3.3, is equipped with the brake fluid in the liquid reserve tank 3.1, and transmission shaft 3.2 rotates with liquid reserve tank 3.1 to be connected, and the one end of transmission shaft 3.2 is passed liquid reserve tank 3.1 and is set up in liquid reserve tank 3.1, and impeller 3.3 sets up in liquid reserve tank 3.1 and is connected with transmission shaft 3.2. The transmission shafts 3.2 correspond to the impellers 3.3 one by one, the impellers 3.3 are fixed with the corresponding transmission shafts 3.2, and the two impellers 3.3 are oppositely arranged and have opposite rotation directions.
The speed reducer 4 comprises an input shaft and two output shafts, the output shafts correspond to the transmission shafts 3.2 one by one, driving gears 5 are arranged on the output shafts, driven gears 6 are arranged on the transmission shafts 3.2, and the driving gears 5 are meshed with the driven gears 6;
among the above-mentioned technical scheme, arresting gear 3 can set up at motor body 1's afterbody, sets up with motor body 1's output shaft relatively, also can be in same end with motor body 1's output shaft setting, and the output shaft passes through transmission structure and divide into two outputs, and an output exports power, and another output is connected with clutch 2. The clutch 2 can be a clutch 2 commonly used in the prior art. Impeller 3.3 submergence is in the brake fluid, and when the machinery that motor or motor drove need brake, closes clutch 2, and motor body 1 drives transmission shaft 3.2 and rotates, and then drives impeller 3.3 and rotates, and impeller 3.3 is at the deceleration liquid internal rotation, produces the resistance, and then produces braking force and brakies the motor, and the rotational speed is faster, and braking force is big more. The impeller 3.3 rotates in the speed reducing liquid for braking, so that friction between solids is avoided, abrasion is reduced, impact of rigid braking on the motor is avoided, heat generated by braking can be quickly transferred to the liquid storage tank 3.1 through the brake liquid, and overheating of the impeller 3.3 is avoided. The motor is locked in other modes after being decelerated. The two impellers 3.3 are oppositely arranged in the liquid storage tank 3.1, the liquid driven by the two impellers 3.3 has opposite flow directions (including radial and axial directions), the fluid carries out hedging to consume energy, the braking effect is further increased, and the situation that the single impeller 3.3 enables the liquid to flow in a single direction to enable the braking effect to be reduced is avoided.
Example 2:
as shown in fig. 1, on the basis of embodiment 1, a spoiler 3.4 is arranged in the liquid storage tank 3.1, and the spoiler 3.4 is fixed with the inner side wall of the liquid storage tank 3.1; the length direction of the spoiler 3.4 is parallel to the rotation plane of the impeller 3.3. The liquid storage tank 3.1 is externally provided with a heat dissipation plate 3.5, and the heat dissipation plate 3.5 is fixed with the liquid storage tank 3.1. The transmission shaft 3.2 is provided with a heat radiation fan 7, the heat radiation fan 7 is connected with the transmission shaft 3.2,
the spoiler 3.4 can increase the resistance of the flow of the deceleration liquid in the reservoir 3.1, thereby increasing the braking effect. The power on the transmission shaft 3.2 can be utilized for heat dissipation, and the heat dissipation effect is improved.
Example 3:
as shown in fig. 2 and 3, based on embodiment 1, the impeller 3.3 includes a wheel frame 3.3.1 and a blade 3.3.2, the blade 3.3.2 includes a connecting portion 3.3.2.1 and a body portion 3.3.2.2, the wheel frame 3.3.1 is fixed with the transmission shaft 3.2, the wheel frame 3.3.1 is provided with a receiving hole 3.6, the receiving hole 3.6 penetrates through the wheel frame 3.3.1 and extends into the transmission shaft 3.2, and the connecting portion 3.3.2.1 is disposed in the receiving hole 3.6 and is slidably connected with the receiving hole 3.6; the device also comprises a telescopic driver 8, a connecting bearing 9 and an adjusting shaft 10; adjusting shaft 10 sets up in transmission shaft 3.2 and with the coaxial setting of transmission shaft 3.2, the telescopic link of flexible driver 8 is connected and the junction sets up connection bearing 9 with adjusting shaft 10, and the one end that adjusting shaft 10 is close to impeller 3.3 is equipped with along the T type groove 10.1 of diametric (al) slope, and the one end of connecting portion 3.3.2.1 is equipped with the sliding part 3.3.2.4 with T type groove 10.1 adaptation, sliding part 3.3.2.4 and T type groove 10.1 sliding connection. As shown in fig. 4, the side wall of the accommodating hole 3.6 is provided with 2 sliding grooves 3.7, the 2 sliding grooves 3.7 are symmetrically arranged, and the side wall of the connecting portion 3.3.2.1 is provided with a sliding member 3.3.2.5 adapted to the sliding grooves 3.7. The slide groove 3.7 is inclined in the circumferential direction of the receiving bore 3.6.
In the above technical solution, the body 3.3.2.2 is partially disposed in the accommodating hole 3.6, and when the body 3.3.2.2 located outside the accommodating hole 3.6 rotates, the liquid can be driven to flow. The telescopic driver 8 can adopt driving devices such as a cylinder, an oil cylinder, a push rod motor, a motor-driven screw nut structure and the like, and can generate telescopic motion. The telescopic rod of the telescopic driver 8 and the adjusting shaft 10 can rotate relatively, and the adjusting shaft 10 moves along with the telescopic rod of the telescopic driver 8. When the extension length of the blade 3.3.2 needs to be adjusted, the extension length of the telescopic driver 8 is changed, the adjusting shaft 10 moves along with the extension length, the sliding part 3.3.2.4 of the blade 3.3.2 is in sliding connection with the T-shaped groove 10.1, when the adjusting shaft 10 moves, the blade 3.3.2 extends out or retracts along with the adjustment shaft, the length of the extension accommodating hole 3.6 is changed, the effective contact surface of the blade 3.3.2 and liquid is changed, the generated resistance is changed, and the adjustment of the size of the braking force is realized by adjusting the extension length of the telescopic rod. The spout 3.7 of slope can be when the blade 3.3.2 stretches out, make blade 3.3.2 rotate along with the angle of inclination of spout 3.7, and then adjust the orientation of blade 3.3.2, change the resistance of liquid, and then realize the adjustment of braking force, when making blade 3.3.2 stretch out, both changed blade 3.3.2's effective area of contact, changed blade 3.3.2's angle again, reached dual regulation effect, the regulating effect of braking force has been increased.
Example 4:
as shown in fig. 2, based on embodiment 3, the wheel carrier 3.3.1 includes an inner ring 3.3.1.1 and an outer ring 3.3.1.2, the inner ring 3.3.1.1 and the outer ring 3.3.1.2 are fixed, the inner ring 3.3.1.1 is fixed with the transmission shaft 3.2, the blade 3.3.2 further includes a supporting portion 3.3.2.3, the body portion 3.3.2.2 is disposed between the connecting portion 3.3.2.1 and the supporting portion 3.3.2.3, the outer ring 3.3.1.2 is provided with a supporting hole 3.8, and the supporting portion 3.3.2.3 is adapted to and slidably connected with the supporting hole 3.8. The structure can form two-end support for the blade 3.3.2, and ensures the connection strength of the blade 3.3.3.2 of the impeller 3.3.
The utility model has the advantages that: the liquid is used for braking, so that friction between solids is avoided, abrasion is reduced, impact of rigid braking on a motor is avoided, heat generated by braking can be quickly transferred to the liquid storage tank through brake fluid, and overheating of an impeller is avoided; the two impellers are oppositely arranged in the liquid storage tank, the rotating liquid flow directions of the two impellers are opposite, and the energy is consumed by the fluid through opposite flushing, so that the braking effect is further increased, and the situation that the braking effect is reduced due to the unidirectional flow of the liquid by the single impeller is avoided; the power on the transmission shaft is utilized for heat dissipation, so that the heat dissipation effect is improved; the adjustment of the braking force can be realized; when the braking force is adjusted, the effective contact area of the blades is changed, the angle of the blades is changed, the double adjusting effect is achieved, and the adjusting effect of the braking force is increased.
Claims (9)
1. The utility model provides a dehumidifier motor with liquid arresting gear, characterized by includes motor body, clutch and arresting gear, and arresting gear passes through the clutch with motor body and is connected, arresting gear includes liquid reserve tank, transmission shaft and impeller, is equipped with the brake fluid in the liquid reserve tank, and the transmission shaft rotates with the liquid reserve tank to be connected, and transmission shaft one end is connected with the clutch, and the other end of transmission shaft passes the liquid reserve tank and sets up in the liquid reserve tank, and the impeller setting is in the liquid reserve tank and is connected with the transmission shaft.
2. The dehumidifier motor with liquid braking device according to claim 1, further comprising a speed reducer, wherein the speed reducer is arranged between the clutch and the braking device, and one end of the transmission shaft is connected with an output shaft of the speed reducer.
3. The motor of claim 2, wherein the brake unit comprises two transmission shafts and two impellers, the transmission shafts and the impellers correspond to each other, the impellers are fixed to the corresponding transmission shafts, and the two impellers are opposite and rotate in opposite directions.
4. The motor of claim 3, wherein the reducer comprises an input shaft and two output shafts, the output shafts correspond to the transmission shafts one by one, the output shafts are provided with driving gears, the transmission shafts are provided with driven gears, and the driving gears are meshed with the driven gears.
5. The motor of claim 1, 2, 3 or 4, wherein a flow blocking plate is arranged in the liquid storage tank and fixed with the inner side wall of the liquid storage tank; the length direction of the spoiler is parallel to the rotation plane of the impeller.
6. The motor of claim 1, 2, 3 or 4, wherein the liquid braking unit is provided with a heat dissipating plate outside the liquid storage tank, and the heat dissipating plate is fixed to the liquid storage tank.
7. The motor of claim 1, 2, 3 or 4, wherein the impeller comprises a wheel frame and a blade, the blade comprises a connecting part and a body part, the wheel frame is fixed with the transmission shaft, the wheel frame is provided with a receiving hole, the receiving hole penetrates through the wheel frame and extends into the transmission shaft, and the connecting part is arranged in the receiving hole and is in sliding connection with the receiving hole; the device also comprises a telescopic driver, a connecting bearing and an adjusting shaft; the regulating spindle sets up in the transmission shaft and with the coaxial setting of transmission shaft, and telescopic link and the regulating spindle of flexible driver are connected and the junction sets up connection bearing, and the one end that the regulating spindle is close to the impeller is equipped with along the T type groove of diametric (al) slope, and the one end of connecting portion is equipped with the sliding part with T type groove adaptation, sliding part and T type groove sliding connection.
8. The motor of claim 7, wherein the receiving hole has a sliding groove on a sidewall thereof, and the connecting portion has a sliding member on a sidewall thereof, the sliding member being adapted to the sliding groove.
9. The motor of claim 8, wherein the number of the sliding grooves is 2, and the 2 sliding grooves are symmetrically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020529016.2U CN211744244U (en) | 2020-04-10 | 2020-04-10 | Dehumidifier motor with liquid braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020529016.2U CN211744244U (en) | 2020-04-10 | 2020-04-10 | Dehumidifier motor with liquid braking device |
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| Publication Number | Publication Date |
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| CN211744244U true CN211744244U (en) | 2020-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020529016.2U Active CN211744244U (en) | 2020-04-10 | 2020-04-10 | Dehumidifier motor with liquid braking device |
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| CN (1) | CN211744244U (en) |
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2020
- 2020-04-10 CN CN202020529016.2U patent/CN211744244U/en active Active
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Effective date of registration: 20220411 Address after: 311401 Building 2, No.12, No.6 Road, Dongzhou industrial functional zone, Dongzhou street, Fuyang District, Hangzhou City, Zhejiang Province Patentee after: Zhejiang Xinli Electrical Technology Co.,Ltd. Address before: 311400 Minlian village, Dongzhou street, Fuyang District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU AOTAI ELECTRICAL Co.,Ltd. |
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