Abstract
A portable electric heating ice scraper with an elongated housing, configured to remove ice from a windshield. The housing includes: a front housing portion including a front housing end and a scraper disposed at the front housing end, and a rear housing portion including a handle and a rear housing end. An electric-powered fan that generates an airflow in a direction of the scraper and at least one electric-powered heating element configured to heat the airflow are disposed in the housing. The front housing portion and the rear housing portion approximately extend on a plane in a longitudinal direction of the housing or the front housing portion is curved at an angle not greater than 35 relative to the rear housing portion in the longitudinal direction of the housing.
Claims
1. A portable electric heating ice scraper with an elongated housing, configured to remove ice from a windshield, wherein the housing comprises: a front housing portion comprising a front housing end and a scraper blade disposed at the front housing end, and a rear housing portion comprising a handle and a rear housing end; an electric-powered fan that generates an airflow in a direction of the scraper blade and at least one electric-powered heating element configured to heat the air flow are disposed in the housing; and the front housing portion and the rear housing portion approximately extend on a plane in a longitudinal direction of the housing or the front housing portion is curved at an angle not greater than 35 relative to the rear housing portion in the longitudinal direction of the housing.
2. The portable electric heating ice scraper according to claim 1, wherein the front housing portion is curved at an angle not greater than 30 relative to the rear housing portion.
3. The portable electric heating ice scraper according to claim 1, wherein the front housing portion extends to the scraper blade in a direction transverse to the longitudinal direction of the housing.
4. The portable electric heating ice scraper according to claim 1, wherein a ratio of the total length of the housing to the height of the housing at the rear housing portion need to be in a range of 5.
5. The portable electric heating ice scraper according to claim 1, wherein the scraper blade comprises multiple ventilation ducts configured to discharge the airflow.
6. The portable electric heating ice scraper according to claim 1, wherein the fan is a centrifugal fan.
7. The portable electric heating ice scraper according to claim 1, wherein the at least one heating element is a PTC heating element.
8. The portable electric heating ice scraper according to claim 1, wherein the fan and the at least one heating element are electrically connected to at least one battery disposed in the housing.
9. The portable electric heating ice scraper according to claim 1, wherein the fan and the at least one heating element are electrically connected to a cable, and the cable can be connected to a vehicle power port by using a plug.
10. The portable electric heating ice scraper according to claim 1, wherein an electronic control apparatus configured to electronically control the fan and/or the at least one heating element is disposed in the housing.
11. The portable electric heating ice scraper according to claim 1, wherein a guide apparatus is disposed in the housing for guiding the airflow onto the scraper blade.
12. The portable electric heating ice scraper according to claim 1, wherein a block that prevents the scraper blade from being penetrated by water is disposed between the at least one heating element and the scraper blade in the housing.
13. The portable electric heating ice scraper according to claim 1, wherein an indication apparatus is disposed at a top housing portion, and the indication apparatus indicates a sufficient temperature of the at least one heating element.
14. The portable electric heating ice scraper according to claim 1, wherein the scraper blade is detachably connected to the front housing.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The following describes the present invention in detail with reference to exemplary embodiments only for the purpose of illustration.
[0026] FIG. 1 is an oblique top view of an implementation of an ice scraper according to the present invention, where A is a schematic diagram without a top housing portion, and B is a schematic diagram with a top housing portion;
[0027] FIG. 2 is an exploded view of the implementation of the ice scraper according to the present invention in FIG. 1;
[0028] FIG. 3 is a top view (A), a side sectional view (B) and a bottom view (C) of the implementation of the ice scraper according to the present invention in FIG. 1;
[0029] FIG. 4 is a side sectional view (as shown in FIG. 3B) of the implementation of the ice scraper according to the present invention in FIG. 1; and
[0030] FIG. 5 is an exploded view of another implementation of an ice scraper according to the present invention.
DETAILED DESCRIPTION
[0031] FIG. 1 is an oblique top view that shows a preferred implementation of an ice scraper according to the present invention with or without a top housing portion 17 (also as shown in FIG. 2). The ice scraper includes, for example, a housing 2 that is made of thermoset plastic and includes a front housing end 5, a rear housing end 6, a bottom housing portion 18 and a top housing portion 17. The housing 2 includes a front housing portion 3 including a scraper blade 7, and a rear housing portion 4 constructed as a handle 8. The front housing portion 3 extends in a conical shape to the scraper blade 7. A fan 9 is provided at the bottom housing portion 18, and fan herein is constructed as a centrifugal fan and is horizontally mounted to make a structure as flat as possible. The bottom housing portion 18 is further provided with a guide apparatus 14 that extends in a conical shape from an air outlet connector of the fan 9 in a direction of the scraper blade 7. The guide apparatus 14 is configured to guide an airflow generated by the fan 9 towards the direction of the scraper blade 7. A support 20 of a heating element 10 is disposed in the guide apparatus 14 constructed as a profile, and the heating element is disposed between the fan 9 and the scraper blade 7. The support 20 leans at an angle of, for example, 45 to extend a surface of the support, and the heating element 10 constructed as a PTC heating element on the support is disposed at a corresponding angle. During operation, the airflow that is generated by the fan 9 and that is guided by the guide apparatus 14 flows onto the scraper blade 7 by using the inclined PTC heating element. The PTC heating element 10 heats the airflow that passes through the PTC heating element, so that the warm or hot airflow flows onto the scraper blade 7. An ice scraper 1 in the implementation shown herein is powered by a battery and has a rechargeable battery 12 in the rear housing portion 4. The ice scraper 1 may be connected to a charging cable by using a charge socket 21 and may be recharged by using a vehicle power port by using the cable battery 12. The ice scraper 1 may be powered on and run by directly using the power port by using the cable. An electronic control apparatus 13 controls the fan 9 and/or the heating elements 10. The electronic control apparatus 13 should be set in such as way that after the heating elements 10 reaches a sufficient temperature, for example, 195 C., an airflow is generated when the fan is on. Therefore, a temperature sensor 33 is connected to the electronic control apparatus 13. The temperature sensor measures a temperature of the heating element 10 and transmits a measurement result to the electronic control apparatus 13. The ice scraper 1 includes a switch 22 that has a safety lock 23 and that can be manually switched on by using an manipulation member 29 located on a side surface of the housing. An indication apparatus 16 is disposed at the top housing portion 17. In this implementation (not shown in the figure of this implementation), the indication apparatus includes two indicator lights 31 and 32 covered by transparent covers 24 and 25. The red indicator light 31 (under the cover 24) indicates, for example, whether the ice scrape is powered on or whether a voltage supply is sufficient. The green indicator light 32 (under the cover 25) indicates, for example, whether the heating elements 10 reaches a sufficiently high temperature and whether the ice scraper 1 is ready.
[0032] FIG. 2 is an exploded view of the implementation of the ice scraper according to the present invention in FIG. 1, thereby omitting detailed descriptions again of this point. For meanings of numerals, refer to FIG. 1. It can be learned from FIG. 2 that the indication apparatus 16 constructed as a profile is, if necessary, covered by an appropriate cover 27 construct as a profile, an airflow flows in a separately sealed channel. To support and supply power to the PTC heating element 10 and if necessary, for a data cable and/or controlling the heating element, a frame 30 including frame portions 26 and 28 is disposed.
[0033] FIG. 3 is a top view (A), a side sectional view (B) and a bottom view (C) of the implementation of the ice scraper according to the present invention in FIG. 1 and FIG. 2. For meanings of numerals herein, also refer to FIG. 1. The sectional view (B) is enlarged again in FIG. 4, and reappears by rotating 90 in a clockwise direction. In this implementation of the ice scraper 1, the total length of the ice scraper 1 is 240.4 millimeters, the width a in a range of the front housing end 5 including the scraper blade 7 is 128.1 millimeters, the width c at the rear housing end 6 is 62.1 millimeters, the height e at the rear housing end 6 is 26.8 millimeters, and the height d measured between highest points of the top housing portion 17 in a range between the indication apparatus 16 and a lower side of the scraper blade 7 is 39.3 millimeters. FIG. 3B (also as shown in FIG. 4) is a side sectional view showing that in the implementation shown herein, the bottom housing portion 18 is arch-shaped in the direction of the scraper blade. In addition, a cross sectional view further shows that the front housing portion 3 is curved or is bent relative to the rear housing portion 4 to the bottom housing portion 18 or in the direction of the scraper blade 7, and an angle herein is probably 15 (FIG. 4).
[0034] FIG. 5 is an exploded view of an implementation of a cable operation of an ice scraper according to the present invention. Same numerals in FIG. 5 and in the foregoing figures indicate same device functions, thereby emitting new explanations regarding components in the foregoing descriptions of the implementation of supplying power by the battery of the ice scraper 1 according to the present invention. To replace the battery 12 with a power source, a socket 34 is disposed in the rear housing portion 4 for a connector 35, the socket is connected to a plug 37 by using a cable 36, and the plug may be connected to a vehicle power port. The vehicle power port herein refers to a 12 V power port. The figure of this implementation further shows the indicator lights 31 and 32 of the indication apparatus 16.
