Patent Application
20100077632
1. Field of the Invention
The present invention relates to a dryer, and particularly relates to a dryer that prevents droplets of condensed water that form on the inner wall of the dryer from dropping onto the dried objects in the dryer.
2. Description of the Related Art
Dryers are used for vaporizing water in the object that is placed in the dryer. Therefore, the dryer generates large amounts of vapor during the drying process.
Generally, the more sealed the space is, the faster the drying speed is. Because the sealed space doesn't release heat easily, the temperature in the inner part of the dryer rises rapidly and stays high. However, in the sealed space, when the vapor contacts the inner wall of the dryer, the vapor condenses on the inner wall and forms water droplets. The water droplets on the inner wall will drop onto the dried objects due to gravity. Therefore, the drying time becomes longer and the power is wasted.
The dryer of the prior art usually has a ventilating channel 11 (as shown in
One particular aspect of the present invention is to provide a dryer. The dryer can exhaust water droplets condensed on the inner wall to prevent the water droplets from dropping onto dried objects, reduces required power, can be operated at a high temperature to achieve a disinfecting effect, and prevents poisonous air from polluting the environment.
In order to achieve the above-mentioned aspects, the present invention provides a dryer including: a dryer body, a driving device, a control device, an upper cover, and a heat-insulating element. The dryer body has an upward opening and a groove located around the opening. The driving device is connected with the dryer body. The control device is connected with the dryer body. The upper cover has a cone shape, and an angle of the cone end is larger than 0 degrees and is less than or equal to 35˜60 degrees. The heat-insulating element encloses a bottom side of the upper cover in order to prevent the upper cover from contacting with the dryer body, so that the heat generated by the dryer body insulated from the upper cover. The bottom rim of the upper cover and the heat-insulating element are located in the groove of the dryer body.
When the dryer is operating, vapor rises and condenses to water droplets on the inner wall of the upper cover. The angle of the upper cover makes the water droplets slide downward along the inner wall of the upper cover as to prevent the water droplets from dropping onto the dried objects. The groove is used for collecting the condensed water droplets and preventing the water droplets from dropping onto the dried objects when the water droplets slide downward along the inner wall of the upper cover.
For further understanding of the invention, reference is made to the following detailed description illustrating the embodiments and examples of the invention. The description is only for illustrating the invention and is not intended to be considered limiting of the scope of the claim.
The drawings included herein provide a further understanding of the invention. A brief introduction of the drawings is as follows:
Reference is made to
The upper cover 24a is located at the opening 211 of the dryer body 21 so as to make the inner part of the dryer body 21 sealed so as to increase the drying effect. The upper cover 24a has a cone shape. The angle of the cone end 241 is larger than 0 degrees and is less than or equal to 35˜60 degrees. The preferred angle is 30 degrees. When the dryer 2 is operating, vapor condenses on the inner wall of the upper cover 24a to form water droplets, and make the water droplets slide downward along the inner wall of the upper cover 24a so as to prevent the water droplets from dropping onto the dried objects. The edge 242a of the bottom of the upper cover 24a is located at the groove 23a. Therefore, the water droplets sliding along the upper cover 24a collect in the groove 23a to prevent the water droplets from dropping onto the dried objects. The exhausting water pipe 231 connected with the groove 23a is used for exhausting the water collected in the groove 23a.
When the dryer 2 is operating, the drying object generates vapor. The vapor rises and toughs the inner wall of the upper cover 24a to form water droplets on the inner wall of the upper cover 24a. The water droplets slide along the inner wall of the upper cover 24a and drop into the groove 23a and are colleted in the groove 23a. Therefore, the drying process is executed in a sealed space and prevents the dried objects from being rewet. The drying time is shortened and the required power is decreased. Because the drying process is executed in a sealed space and the vapor condenses on the inner wall of the upper cover 24a, the dryer 2 is kept at a high temperature to achieve the disinfecting effect, and prevents poisonous air or the odor of the dried objects from exhausting out of the dryer 2 and polluting the environment.
The groove 23a can be integrated with the dryer body 21 into one piece, or is locked or welded with the opening 211 of the dryer body 21. The shape of the groove 23a corresponds to the shape of the opening 211 of the dryer body 21. For example, when the shape of the opening is quadrilateral, a pentagon, a circle, or an irregular-shape, the shape of the groove 23a is quadrilateral-frame shaped, pentagon-frame shaped, circle-frame shaped, or an irregular-frame shaped. Similarly, the shape of the edge 242a of the bottom of the upper cover 24a also corresponds to the shape of the opening 211 of the dryer body 21, such as a quadrilateral, a pentagon, a circle, or an irregular-shape. The upper cover 24a can be triangle column-shaped as shown in
Reference is made to
Reference is made to
The description above only illustrates specific embodiments and examples of the invention. The invention should therefore cover various modifications and variations made to the herein-described structure and operations of the invention, provided they fall within the scope of the invention as defined in the following appended claims.
