CN115781600A - Electric tool provided with abnormal state warning device - Google Patents
Electric tool provided with abnormal state warning device Download PDFInfo
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- CN115781600A CN115781600A CN202111064645.8A CN202111064645A CN115781600A CN 115781600 A CN115781600 A CN 115781600A CN 202111064645 A CN202111064645 A CN 202111064645A CN 115781600 A CN115781600 A CN 115781600A
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- power tool
- warning device
- warning
- abnormal state
- display
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C3/00—Registering or indicating the condition or the working of machines or other apparatus, other than vehicles
Abstract
An electric tool equipped with an abnormal state warning device comprises a controller, an abnormal detector, a warning device and a warning device, wherein the controller is used for detecting the abnormal state of the electric tool and generating detection data; and an alert device operatively connected to the controller for emitting an alert signal. The controller is operatively connected to the anomaly detector and the alert device, wherein the controller determines whether the power tool is in a predefined anomaly state based on the detection data, the controller instructs the alert device to issue the alert signal and trigger the power tool to turn off protection when the power tool is in the predefined anomaly state, the alert device being configured to provide a sensory alert signal to a user. The power tool may further comprise display means for displaying one or more predefined anomaly signals.
Description
Technical Field
The invention relates to an electric tool provided with an abnormal state warning device.
Background
In the field of power tools, devices for displaying the operating state or the like, such as the rotation speed, temperature, voltage or electric quantity of the power tool, are generally provided. These conditions may be derived from data collected by various sensors in the power tool during normal operation of the power tool. Although the conventional power tool has advanced to some extent compared to the conventional power tool, in order to make the operation of the power tool safer, more reliable and durable, the power tool needs to be provided with a device for monitoring the operation state thereof, and particularly, when the power tool is in an abnormal state, it is important if the power tool allows a user to know the abnormal state thereof and prevents the power tool from continuing to operate in the abnormal state. In addition, because the electric tool in the prior art has a complicated structure, if the electric tool is in an abnormal state, many reasons may be involved. Accordingly, there is a need for an electric power tool that effectively alerts a user when an abnormal condition exists so that the user is aware that the electric power tool is operating abnormally and/or is not suitable for further use.
Disclosure of Invention
The present invention is intended to provide a safer work environment or equipment and to make the electric power tool more reliable and durable, and to achieve the above-mentioned object by providing an electric power tool equipped with an abnormal state warning device. The electric tool includes:
a controller;
an abnormality detector for detecting an abnormal state of the electric tool and generating detection data; and
an alert device operatively connected to the controller for emitting an alert signal, the controller operatively connected to the anomaly detector and the alert device, wherein the controller determines whether the power tool is in a predefined abnormal state based on the detection data, the controller instructs the alert device to emit the alert signal and trigger turn-off protection of the power tool when the power tool is in the predefined abnormal state, the alert device configured to provide a sensory alert signal to a user.
According to one embodiment, the power tool further comprises: a display device for displaying one or more predefined anomaly signals,
the controller instructs the abnormality display device to display an abnormality signal associated with a predefined abnormal state when determining that the electric power tool is in the predefined abnormal state based on the detection data.
According to one embodiment, the power tool further comprises: the shell, warning device is arranged on the shell and is used for providing warning signals for users.
According to one embodiment, the power tool further comprises: the handle, warning device is arranged in the place ahead of or behind the handle for providing optical warning signal to the user.
According to one embodiment, the power tool further comprises: the warning device comprises a main body connected with the handle and a working part positioned at the front end of the main body, wherein the warning device is arranged on the working part and is used for irradiating an optical warning signal on a working surface.
According to one embodiment, the power tool further comprises: a housing, the warning device being disposed within the housing for providing a non-optical warning signal to a user.
According to one embodiment, the non-optical warning signal is an acoustic or tactile signal.
According to one embodiment, the alert signal comprises a flashing light, which may be intermittent or continuous.
According to one embodiment, the flashes of light comprise light of different colors.
According to one embodiment, the warning device is arranged on the outer surface of the electric tool and comprises at least one LED unit.
According to one embodiment, the LED unit of at least one of the warning devices is arranged to illuminate in a direction towards the working end of the power tool.
According to one embodiment, the display device is disposed remotely from the warning device.
According to one embodiment, the warning device and the display device are arranged to be located adjacent to each other.
According to one embodiment, the display device comprises a segment code display comprising a plurality of LED units arranged in a substantially linear array, and the gradually illuminated portions form a display of a bar graph.
According to one embodiment, the display device is configured to display the power tool in the predefined abnormal state by the segment code type display in a plurality of different bright light modes and corresponding to the plurality of abnormal signals.
According to one embodiment, said plurality of different bright light patterns comprises a plurality of said LED units emitting a flash of light, which flash of light may be intermittent or continuous.
According to one embodiment, the plurality of bright light patterns comprises individual ones of the LED units emitting a flash of light, which may be intermittent or continuous.
According to one embodiment, the abnormal signal sent by the display device is synchronized with the warning signal sent by the warning device.
According to one embodiment, the display device is accompanied by a function of displaying at least one normal operating state of the electric power tool.
According to one embodiment, the display device is arranged to display the level of the rotational speed of the power tool.
According to one embodiment, the abnormal state warning device is configured to operate synchronously when the power tool is in operation.
According to one embodiment, the warning device is a buzzer that sounds.
According to one embodiment, the warning device is a shock generating device.
Drawings
The technical solution of the present invention is further illustrated below according to a preferred embodiment, wherein:
FIG. 1a illustrates a perspective view of a power tool configured with an abnormal state warning device in accordance with one embodiment of the present invention;
FIG. 1b shows a flow chart of the abnormal state alert device according to FIG. 1 a; and
fig. 2 to 6 show different combinations of lights of the warning device and the display device of the electric tool according to fig. 1a to correspond to different abnormal states.
Detailed Description
Before any embodiments of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The invention is capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. General terms, terms of degree, such as "substantially" or "about," are understood to refer to a reasonable range outside of the stated value, such as the general tolerances associated with manufacturing, assembly, and use of the described embodiments. Moreover, the use of "including," "comprising," or "having" and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items.
Fig. 1a and 1b show a power tool equipped with an abnormal state warning device according to an embodiment of the present invention. The power tool 1 shown in the figure is a hand-held power impact wrench. The electric tool can be other hand-held electric tools, such as hand-held electric drills, electric saws or electric screwdrivers. Specifically, the electric power tool 1 shown in fig. 1a is an electric impact wrench provided with an abnormal state warning device. The power tool 1 is provided with at least one abnormality detector 2 for detecting an abnormal state of the power tool 1 and generating detection data. The abnormality detector may be at least one detector provided in the housing of the power tool, such as a temperature sensor for detecting temperature, an electric sensor for measuring a rotational speed, an electric sensor for measuring voltage and/or current, and the like. These anomaly detectors are each operatively connected to a controller 3. The controller 3 may be a synthesis circuit for comparing and analyzing the data collected from the abnormality detector 2 to determine whether the power tool 1 is in a predefined abnormal state. The controller has stored therein parameters relating to predefined abnormal conditions. The parameters refer to values or ranges of values associated with the power tool 1 in normal operating conditions. For example, the normal operating temperature of the power tool is-20 to 70 ℃, the operating current is 0.5 to 200A, the operating voltage is 12.0 to 22.0V, and values outside the above-mentioned range are defined as being associated with an abnormal state. The controller 3 compares the values of these predefined abnormal states with the data collected from the abnormality detector 2, and if the values of the data collected from the abnormality detector 2 exceed the parameters or parameter ranges of the predefined abnormal states, the controller 3 determines that the electric tool is in an abnormal state and instructs the warning device 4 to emit a warning signal. Preferably, the controller 3 can also trigger a switch-off protection provided in the power tool 1 in response to individual predefined abnormal conditions, in order to protect the motor and associated electronic components from damage, while at the same time avoiding the risk of safety for the user.
According to fig. 1a, the power tool comprises a warning device 4. The warning device 4 is operatively connected to the anomaly detector 2 and the controller 3. The warning device 4 is configured to send a warning signal when the power tool 1 is in an abnormal state, so that a user perceives that the power tool 1 is abnormal and cannot continue to use the power tool. In particular, the warning device 4 is arranged to provide a sensory warning signal to the user. For example, the warning device 4 may be a device that emits an optical warning signal or a light device that emits light or flashes light to make the user aware of the warning. In addition, the power tool comprises a handle portion 5, and a warning device 4 may be disposed in front of the handle portion 5 for providing an optical warning signal to a user. The warning device 4 can be disposed at the front end of the main body 6 of the electric tool 1 connected to the handle 5, and can be used to irradiate the optical signal onto the working surface, which can be easily detected by the user during operation. The optical warning signal emitted by the warning device 4 may include a flashing light and may be intermittent or continuous. Further, the flashing light may also comprise different colored light and sequentially flash. Specifically, the warning device 4 is disposed on an outer surface of the power tool 1, and the warning device 4 includes at least one LED unit. Preferably, the LED unit of at least one of the warning devices 4 is arranged to illuminate in the direction of the working end 7 of the power tool 1. As shown in fig. 1a, the front end of the power tool 1 is provided with a working light 8 consisting of three sets of LED units in the direction of the working end 7. The three sets of LED units are arranged to provide illumination to the work surface but also serve as warning means 4 for alerting the user when the power tool 1 is in a predefined abnormal condition. Since the working end 7 is generally a working surface facing forward when the power tool 1 is in use, even if the LED unit is not disposed in a direction toward the user, the user can easily see the reflection from the working surface or the periphery to perceive the warning signal. The warning device 4 composed of the three groups of LED units can provide illumination for the working surface at the same time, and can send out warning signals which are easy to perceive to the user when the electric tool 1 is in an abnormal state, so that the user can be ensured to know that the electric tool is abnormal.
Alternatively, the warning device 4 may be provided within the housing for providing a non-optical warning signal to the user. The non-optical alert signal may be an audible or tactile signal. Specifically, the warning device 4 may be a sound emitting device, such as a buzzer, which emits sound to make the user know the warning. The warning device 4 may also be a vibration generating device, which makes the user know the warning by touch by vibrating the handle 5 of the power tool 1.
As shown in fig. 1a and 1b, the power tool 1 may further comprise a display device 9 for displaying one or more predefined abnormality signals to a user. The one or more predefined abnormal signals are respectively correlated with the predefined abnormal state, so that the user can know the predefined abnormal state of the electric tool 1 through the signal displayed by the display device 9. Basically, after the controller 3 determines that the electric power tool 1 is in a predefined abnormal state based on the detection data collected from the abnormality detector 2, the display device 9 is instructed to display an abnormality signal associated with the predefined abnormal state, and the user can know from the display device 9 which predefined abnormal state the electric power tool 1 is in. Furthermore, the warning device 4 of the power tool 1 can be operated in synchronization with the display device 9. The display device 9 may be disposed away from the warning device 4 so that either the display device 9 or the warning device 4 may be more easily perceived by a user when operated. However, the warning device 4 and the display device 9 may also be arranged compactly, for example, the warning device 4 and the display device 9 may be located adjacent to each other, or both may even be arranged on the same display device. The display means 9 may be provided as a segment code display comprising a plurality of LED units arranged in a substantially linear array and capable of forming a display of a bar graph in progressively lit portions and producing a plurality of different light patterns. The display device 9 may be configured to display different bright patterns corresponding to different abnormal signals through the segment code display, so as to display that the electric tool 1 is currently in a certain predefined abnormal state.
Typically, the alerting means 4 and the display means 9 are arranged to operate synchronously in a predefined abnormal state. Depending on the requirements of different states, the controller 3 can trigger a switch-off protection provided in the power tool 1. For example, as shown in the tables of fig. 2 to 6, the warning device 4 is a work light, and the display device 9 is a segment display having four LED units arranged in an array.
Fig. 2 shows that in a first predefined abnormal state, the controller 3 instructs the working light used as warning means 4 to continuously flash. Moreover, the four LED units arranged in an array in the segment code display of the display device 9 may flash simultaneously and continuously in synchronization with the flashing of the working light of the warning device 4. The above bright light pattern represents a first predefined abnormal state of the power tool 1. For example, the first predefined abnormal state may refer to the abnormal state in which the electric power tool 1 is in an excessively high current.
Fig. 3 shows that in a second predefined abnormal situation, the controller 3 will instruct the working light used as warning device 4 to continuously flash. Moreover, the controller 3 instructs only one of the LED units arranged in the array in the segment display of the display device 9 to flash next, and then sequentially instructs the LED unit adjacent to the LED unit to flash next until the next cycle starts after the last LED unit flashes. In this way, the display device 4 is able to display a second light combination, i.e. a predefined abnormal state, which represents a second one of the power tools 1. For example, the second predefined abnormal state may refer to the abnormal state in which the power tool 1 is in an excessively high temperature.
Fig. 4 shows that in a third predefined abnormal situation, the controller 3 will instruct the working light used as warning device 4 to continuously flash. Moreover, the controller 3 instructs only a first combination of two of the LED units arranged in the array in the segment code display of the display device 9 to flash next, and then a second combination of another two LED units to flash next. As shown in the table, there are essentially six combinations of light flashing two of the four LED units. That is, until after the sixth combination flashes, the next cycle begins. In this way, the display device 9 can display a third light combination, which represents a third predefined abnormal state of the power tool 1. For example, the third predefined abnormal state may refer to the power tool 1 being in an abnormal state of too low voltage.
Fig. 5 shows that in a fourth predefined abnormal state, likewise, the controller 3 will instruct the working light used as warning device 4 to continuously flash. Moreover, the controller 3 instructs the first combination of three LED units arranged in an array in the segment code display of the display device 9 to flash at once, i.e. one of the LED units is in an off state. Then a second combination of another group of three of the LED units emits the next flash. As shown in the table, there are essentially four combinations of light flashing from three of the four LED units. That is, until after the fourth combination flashes, the next cycle begins. In this way, the display device 9 is able to display a fourth light combination, which represents a fourth predefined abnormal state of the power tool 1. For example, the fourth predefined abnormal state may refer to an abnormal state in which the power tool 1 is in a shutdown state or is misused.
Fig. 6 shows that in a fifth predefined abnormal situation, the controller 3 will instruct the working light used as warning device 4 to continuously flash. Furthermore, the controller 3 instructs the LED units arranged in an array in the segment code display of the display device 9 to flash in a specific order. This combination of lights represents a fifth predefined abnormal state of the power tool 1. For example, the fifth predefined abnormal state may refer to an abnormal state in which the electric power tool 1 is in communication failure. Based on the above different lighting patterns and/or light combinations, the display device 9 can display five or more different light combinations, which can represent five or more predefined abnormal states of the power tool 1.
Preferably, the different bright light patterns may include individual or multiple LED units emitting flashes of light, which may be intermittent or continuous. The abnormal signal emitted by the display device 9 is substantially synchronized with the warning signal emitted by the warning device 4. The display device 9 may also be generally accompanied by a function of displaying at least one operating state of the power tool 1. For example, the display device 9 may be configured to display the rotation speed of the power tool or the remaining amount of power. Advantageously, the abnormal state warning device is configured to operate synchronously when the power tool 1 is in operation, so as to make the user know in time when the power tool 1 is abnormal, thereby ensuring the safety of the user and protecting the power tool.
As described above, the present invention provides an electric power tool equipped with an abnormal state warning device, which provides an improvement over known electric power tools. When the electric tool is in an abnormal state, the abnormal state warning device may issue a warning to the user to warn the user that the electric tool is in the abnormal state, or further display that the electric tool is in some kind of abnormal state.
It will be appreciated by persons skilled in the art that numerous variations and/or modifications may be made to the invention as shown in the specific embodiments without departing from the spirit or scope of the invention as broadly described. The described embodiments of the invention are, therefore, to be considered in all respects as illustrative and not restrictive.
Claims (23)
1. An electric tool equipped with an abnormal state warning device, comprising:
a controller;
an abnormality detector for detecting an abnormal state of the electric tool and generating detection data; and
a warning device operatively connected to the controller for issuing a warning signal, the controller operatively connected to the anomaly detector and the warning device, wherein the controller determines whether the power tool is in a predefined abnormal state based on the detection data, the controller instructs the warning device to issue the warning signal and triggers a cut-off protection of the power tool when the power tool is in the predefined abnormal state, the warning device configured to provide a sensory warning signal to a user.
2. The power tool of claim 1, further comprising: a display device for displaying one or more predefined anomaly signals,
the controller instructs the abnormality display device to display an abnormality signal associated with a predefined abnormal state when determining that the electric power tool is in the predefined abnormal state based on the detection data.
3. The power tool of claim 1, further comprising: the shell, warning device is arranged on the shell and is used for providing warning signals for users.
4. The power tool of claim 3, further comprising: the handle, warning device is arranged in the place ahead of or behind the handle for providing optical warning signal to the user.
5. The power tool of claim 4, further comprising: the warning device comprises a main body connected with the handle and a working part positioned at the front end of the main body, wherein the warning device is arranged on the working part and is used for irradiating an optical warning signal on a working surface.
6. The power tool of claim 1, further comprising: a housing, the warning device being disposed within the housing for providing a non-optical warning signal to a user.
7. The power tool of claim 5, wherein the non-optical warning signal is an audible or tactile signal.
8. The power tool of claim 4, wherein the warning signal comprises a flashing light, which may be intermittent or continuous.
9. The power tool of claim 8, wherein the flashing light comprises a different color of light.
10. The power tool of claim 1, wherein the warning device is disposed on an outer surface of the power tool, the warning device including at least one LED unit.
11. The power tool of claim 10, wherein the LED unit of at least one of the warning devices is configured to illuminate in a direction toward the working end of the power tool.
12. The power tool according to claim 2, wherein the display device is provided remote from the warning device.
13. The power tool according to claim 2, wherein the warning device and the display device are provided so as to be located adjacent to each other.
14. The power tool of claim 2, wherein the display device comprises a segment code display comprising a plurality of LED units arranged in a substantially linear array, and the progressively illuminated portions form a display of a bar graph.
15. The power tool of claim 14, wherein the display device is configured to display the power tool in the predefined abnormal state by displaying a plurality of different bright light patterns on the segment code display and corresponding to the plurality of abnormal signals.
16. The power tool of claim 14, wherein the plurality of different bright light patterns includes a plurality of the LED units emitting a flash of light, which may be intermittent or continuous.
17. The power tool of claim 14, wherein the plurality of bright light patterns includes individual ones of the LED units emitting a flash of light, which may be intermittent or continuous.
18. The electric tool according to claim 2, wherein the abnormality signal is synchronized with a warning signal from the warning device.
19. The electric tool according to claim 2, wherein the display device is attached with a function of displaying at least one normal operation state of the electric tool.
20. The power tool according to claim 2, wherein the display means is configured to display the level of the rotation speed of the power tool.
21. The power tool of claim 1, wherein the abnormal state alert device is configured to operate synchronously while the power tool is in operation.
22. The electric tool according to claim 1, wherein the warning device 4 is a buzzer that emits sound.
23. The electric tool according to claim 1, wherein the warning device 4 is a vibration generating device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111064645.8A CN115781600A (en) | 2021-09-09 | 2021-09-09 | Electric tool provided with abnormal state warning device |
| DE202022104622.0U DE202022104622U1 (en) | 2021-09-09 | 2022-08-15 | Power tool having an abnormal condition warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111064645.8A CN115781600A (en) | 2021-09-09 | 2021-09-09 | Electric tool provided with abnormal state warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115781600A true CN115781600A (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111064645.8A Pending CN115781600A (en) | 2021-09-09 | 2021-09-09 | Electric tool provided with abnormal state warning device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115781600A (en) |
| DE (1) | DE202022104622U1 (en) |
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2021
- 2021-09-09 CN CN202111064645.8A patent/CN115781600A/en active Pending
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2022
- 2022-08-15 DE DE202022104622.0U patent/DE202022104622U1/en active Active
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| Publication number | Publication date |
|---|---|
| DE202022104622U1 (en) | 2022-08-25 |
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