FIELD OF THE INVENTION
- BACKGROUND OF THE INVENTION
The present invention relates to opener, and particularly to a high torsion electromotive opener with enhanced power supply ability so as to provide high torque in operation
- SUMMARY OF THE INVENTION
The prior art electric tool uses batteries or wired power supply for supplying power. To be portable easily, batteries are suitable power source for tools needing small torsion. However, batteries cannot provide a larger current for generating a large torsion, especially in transient charging and discharge current. This is because batteries generate power by chemical reaction. Moreover, the batteries store finite charges. In reverse direction of an opener, a larger power is necessary, however, batteries cannot provide such a larger current and thus the lifetime of the batteries is affected. Moreover, chemical reaction will deteriorates the batteries. After using for a longer time, the batteries cannot saturate and thus cannot be used for a long time. Moreover, batteries need longer charge time. This induces inconvenient in use of the tool. Moreover, in general, the prior art tool does not equip with lamp for illumination and thus it is inconvenient when it is used in dark.
Accordingly, the primary object of the present invention is to provide a high torsion electromotive opener comprising a casing, an electrical control unit, a power supply and a lamp. The electrical control unit is formed by a motor and a connecting unit. The motor receives power from the power supply to drive the connecting unit to rotate. The power supply includes at least one battery, an electric dual layer capacitor and a charge seat which are installed in predetermined positions within the casing. The batteries are connected to the electric dual layer capacitor in parallel and the charge seat is conductive to the batteries. The charging and discharging of the electric dual layer capacitor is physical reaction and thus current flow is not limited. The electric dual layer capacitor is charged or discharged transiently. When the power supply drives the electrical control unit to rotate, the electric dual layer capacitor will charge the electrical control unit transiently so as to have a large torsion.
BRIEF DESCRIPTION OF THE DRAWINGS
The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawing.
FIG. 1 is a schematic perspective view of the present invention.
FIG. 2 is a schematic cross sectional view of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
FIG. 3 is an assembled cross sectional view of the present invention.
In order that those skilled in the art can further understand the present invention, a description will be described in the following in details. However, these descriptions and the appended drawings are only used to cause those skilled in the art to understand the objects, features, and characteristics of the present invention, but not to be used to confine the scope and spirit of the present invention defined in the appended claims.
With reference to FIGS. 1 to 3, the high torsion electromotive opener of the present invention is illustrated. The high torsion electromotive tool includes a casing 10, an electrical control unit 20, a power supply 30 and a lamp 40.
The casing 10 is formed by two half-casings. A long groove 11 is installed at a head end of the casing 10 for receiving the electrical control unit 20. Another end of the casing 10 is formed with three receiving grooves 12, 13, and 14 and two lamp grooves 15 and 16. The three receiving grooves 12, 13 and 14 serve for receiving the power supply 30. The lamp groove 15 and 16 serves for receiving the lamp 40 and an indicator light 50. An openable rear cover 17 can be formed on a lower edge of the casing 10. An inserting hole 171 communicating to the third receiving groove 14 is formed on the rear cover 17.
The electrical control unit 20 is formed by a motor 21 and a connecting unit 22. The motor 21 receives power from the power supply 30 to drive the connecting unit 22 to rotate. One end of the connecting unit 22 protrudes from the casing 10 for mounting an opener (not shown). An electric control switch 62 is installed at a connection of the handle and head of the casing 10 so as to control the rotation directions of the electrical control unit 20.
The power supply 30 includes a plurality of batteries 31, an electric dual layer capacitor 32 and a charge seat 33. The batteries 31 are installed in the first receiving groove 12 The electric dual layer capacitor 32 is installed in the second receiving groove 13. The charge seat 33 is installed in the third receiving groove 14. The batteries 31 are connected to the electric dual layer capacitor 32 in parallel. The charge seat 33 is conductive to the batteries 31. The charging and discharging of the electric dual layer capacitor 32 are physical reaction without any chemical reaction. Thereby, the current flow is not limited. Thereby, the electric dual layer capacitor 32 can be charged or discharged transiently. Thereby, when the power supply 30 drive the electrical control unit 20 to rotate, the electric dual layer capacitor 32 will charge the electrical control unit 20 transiently so as to have a large torsion.
The lamp 40 is high illumination LEDs and is mounted in the first lamp groove 15. The lamp is controlled by a driving switch 61 on the casing 10 so as to generate light for illumination. The indicator light 50 is installed in the second lamp groove 16 of the casing 10 so as to indicate the charging condition of the charge seat 33.
Thereby, by above components, the efficiency of the electromotive opener can be improved and power supply is increased. Thereby, efficiency of charging and discharging can be increased.
The details of the present invention will be further described herein. When the power supply 30 is connected to an external device and supplies power to the device, one end (not shown) of the external charger inserts into a receiving hole 171 so as to conduct to the charge seat 33. Then charges will be stored in the dielectric batteries 31 and electric dual layer capacitor 32 at the same time. Since the electric dual layer capacitor 32 can charge and discharge large current transiently, it can saturate at a short time period. Although the batteries 31 do not saturate, if the user desires to use it immediately. The tool can be used by the power from the electric dual layer capacitor 32. Since the current charge and discharge are physical reaction instead of chemical reaction, the charge and discharge time period is long and thus the lifetime of the device is also long.
Moreover, when the present invention is used in a dark area, it is only necessary to open the driving switch 61 for controlling the lamp 40, and then the lamp 40 will light up. In the present invention, super light LEDs are used, which has a power consumption of only 20 mAh with an illumination of over 800 mcd and the lifetime can be as long as 100,000 hours and thus it is more useful than the conventional bulbs.
The electric dual layer capacitor 32 (EDLC) is compared with the batteries. In general, when the batteries are charged, the current is limited based on the Farady law (with the chemical reaction). Therefore, the transient charge and discharge are limited and the thus the current is also limited. Since the charge and discharge of the current has no chemical reaction, it can generate a larger current. Since the charge and discharge of the current has no chemical reaction, the lifetime is prolonged and times for charge and discharge of the current may achieve a value of hundred thousands (the prior art battery is only 300 to 2000 times). Even the EDLC shorted, the present invention can be used. In general, EDLC has the advantages of high power, high energy and compact size and is made of material matching the requirement of environment protection. Thus it can provide a tool with such property.
In the present invention, super light LEDs are used to replace the conventional tungsten light. The super light LEDs only consume a current of 20 mAh with an illumination of 8000 mcd and lifetime of 100,000 hours.
The present invention is thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the present invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.