Illumination and Status Warning Light Device for Electric Hydraulic Pulse Tools

Abstract

The present invention discloses an illumination and status warning signal device for an electric hydraulic pulse tool, which includes a housing and a power supply mechanism, an electric drive mechanism, a hydraulic pulse type torque generating mechanism, a pressure relief mechanism, a trigger switch, a touch switch, a power sensing unit, a temperature sensing unit, a timing unit, an illumination unit, a front-end status warning unit and a control unit assembled in the housing. With the composition of the above components, the control unit selectively outputs illumination signals and first and second warning signals according to the user operation process, so as to feedback and assist the user in operating the electric hydraulic pulse tool.

Description

Technical Field

[0001] The present invention relates to the technical field related to handheld power tools, and in particular to an illumination and status warning signal device for an electric hydraulic pulse tool. Background Art

[0002] In the field of pneumatic or electric tools that can generate impact force, it can be generally divided into two types: direct impact type and hydraulic pulse type; among them, the hydraulic pulse type tools are widely favored by the industrial community due to their longer service life, low noise, and small vibration.

[0003] Traditionally, the operation mode of hydraulic pulse type tools depends on the user's experience, and it is impossible to visually and real-time know whether the operation of the hydraulic pulse type tool is correct and whether there are any abnormalities in the hydraulic pulse type tool itself during the operation process.

[0004] Therefore, in the process of the user operating the hydraulic pulse type tool, it is necessary to timely feedback the correctness of the operation, as well as problems such as operation errors or abnormalities of the hydraulic pulse type tool. The existing structure of the hydraulic pulse type tool really needs to be improved. Summary of the Invention

[0005] In view of the problems and deficiencies of the above prior art, the main purpose of the present invention is to provide an illumination and status warning signal device for an electric hydraulic pulse tool, and solve the deficiencies of the prior art through innovative design of the structure.

[0006] According to the above object of the present invention, an illumination and status warning signal device for an electric hydraulic pulse tool is proposed, including:

[0007] A housing;

[0008] A power supply mechanism, assembled in the housing to provide a power;

[0009] An electric drive mechanism, assembled in the housing and actuated according to an electric drive signal to provide a driving force;

[0010] A hydraulic pulse type torque generating mechanism, connected in series with the electric drive mechanism;

[0011] A pressure relief mechanism, connected to the hydraulic pulse type torque generating mechanism to receive the pressure overflowing from the hydraulic pulse type torque generating mechanism;

[0012] A trigger switch, assembled in the housing to output a trigger signal when triggered;

[0013] A touch switch, arranged in the housing matching the pressure relief mechanism and outputting a touch signal when triggered by the pressure relief mechanism;

[0014] A power sensing unit, electrically coupled to the electric drive mechanism, senses the current value at the input end of the electric drive mechanism and outputs a current signal;

[0015] A temperature sensing unit senses the temperature of the electric drive mechanism and outputs a first temperature sensing signal;

[0016] A timing unit provides a timing signal;

[0017] A lighting unit is provided at the front end of the housing and is actuated according to a lighting signal;

[0018] A front-end status warning unit is provided at the front end of the housing and outputs green light when actuated according to a first warning signal, or outputs red light when actuated according to a second warning signal; and

[0019] A control unit is electrically coupled to the power supply mechanism, the electric drive mechanism, the trigger switch, the touch switch, the power sensing unit, the temperature sensing unit, the timing unit, the lighting unit, and the front-end status warning unit respectively. According to the received touch signal, trigger signal, current signal, first temperature sensing signal, and timing signal, it selectively outputs the lighting signal and the electric drive signal, and outputs the first warning signal when the current signal, the first temperature sensing signal, and the timing signal are less than a set value, or outputs the second warning signal when any one of the current signal, the first temperature sensing signal, and the timing signal is greater than the set value.

[0020] Further, the set value includes a protection temperature value, a protection current value, and an over-time value.

[0021] Further, the temperature sensing unit senses the internal temperature of the housing and outputs a second temperature sensing signal to the control unit, and the control unit selectively outputs the second warning signal.

[0022] Further, a rear-end status warning unit is provided at the rear end of the housing, electrically coupled to the control unit and the electric mechanism, and is actuated according to the first warning signal and the second warning signal.

[0023] Further, the power sensing unit senses the remaining power of the power supply mechanism and then outputs a power signal to the control unit, and the control unit selectively outputs a third warning signal to the rear-end status warning unit to make it actuate and output yellow light.

[0024] Advantages of the present invention:

[0025] By the composition of the above components, the control unit selectively outputs the lighting signal and the first and second warning signals according to the user's operation process, and feeds back and assists the user in operating the electric hydraulic pulse tool. Description of the Drawings

[0026] Figure 1 It is a schematic diagram of an embodiment of the electric oil pressure pulse tool of the present invention;

[0027] Figure 2 It is a block schematic diagram of an embodiment of the present invention;

[0028] Figure 3 It is a partial front view schematic diagram of an embodiment of the electric oil pressure pulse tool of the present invention;

[0029] Figure 4 It is a partial rear view schematic diagram of an embodiment of the electric oil pressure pulse tool of the present invention.

[0030] The names corresponding to the marks in the figure:

[0031] 11: Power supply mechanism

[0032] 12: Electric drive mechanism

[0033] 13: Oil pressure pulse type torque generating mechanism

[0034] 131: Impact shaft

[0035] 14: Pressure relief mechanism

[0036] 15: Trigger switch

[0037] 21: Tactile switch

[0038] 22: Power sensing unit

[0039] 23: Temperature sensing unit

[0040] 24: Timing unit

[0041] 25: Lighting unit

[0042] 30: Front-end status warning unit

[0043] 31: Front-end monochromatic LED lamp

[0044] 40: Rear-end status warning unit

[0045] 41: Rear-end monochromatic LED lamp

[0046] 26: Sound warning unit

[0047] 27: Control unit

[0048] 271: Display interface

[0049] 272: Operation interface

[0050] B: Housing Detailed implementation manner

[0051] Please refer to the relevant drawings below to further illustrate the embodiment of the lighting and status warning light device of the electric oil pressure pulse tool of the present invention. The various objects in the embodiments are depicted according to the proportions, sizes, deformations or displacements suitable for the description, rather than being drawn according to the proportions of the actual components, which should be explained first. And the components with the same and symmetrical configurations in the remaining embodiments are all represented by the same numbers. In addition, the directional terms such as "front, back, left, right, up, down, inside, outside" in the description of each embodiment listed below are expressed according to the specified viewing direction and cannot be interpreted as limiting the present invention.

[0052] See also Figures 1 to 4 As shown, the lighting and status warning light device of the electric oil pressure pulse tool of the present invention includes a shell B and a power supply mechanism 11, an electric drive mechanism 12, an oil pressure pulse torque generating mechanism 13, a pressure relief mechanism 14, a trigger switch 15, a light touch switch 21, a power sensing unit 22, a temperature sensing unit 23, a timing unit 24, a lighting unit 25, a front state warning unit 30, a rear state warning unit 40, a sound warning unit 26 and a control unit 27.

[0053] The power supply mechanism 11 (prior art) is used to provide electric power. In practice, the power supply mechanism 11 can be a lithium battery or other replaceable batteries, or a transformer with a power cord directly connected to the mains.

[0054] The electric drive mechanism 12 (prior art) is actuated by an electric drive signal to provide a driving force, and may be a brushless DC motor or other equivalent electric drive motors.

[0055] The hydraulic pulse torque generating mechanism 13 (prior art) is connected in series with the electric drive mechanism 12 and driven by the electric drive mechanism 12 to generate power, and the striking shaft 131 outputs torque and repeated impacts. During implementation, a tool head assembly (such as a sleeve, a screwdriver head) is provided at the end of the striking shaft 131.

[0056] The pressure relief mechanism 14 (prior art) is used to set the upper limit of the pressure (torque) when the hydraulic pulse torque generating mechanism 13 is actuated and to receive the overflowing pressure. When implemented, the pressure relief mechanism 14 can be a piston type structure.

[0057] The trigger switch 15 (prior art) is provided for the user to press to trigger the output of a trigger signal.

[0058] The touch switch 21 is matched with the pressure relief mechanism 14 and is selectively triggered by the pressure relief mechanism 14 to output a touch signal in response.

[0059] The above-mentioned power sensing unit 22 is electrically coupled to the power supply mechanism 11 and the electric drive mechanism 12 respectively, and is used to sense the remaining power of the power supply mechanism 11 and the current value at the input end of the electric drive mechanism 12, and output a power signal and a current signal respectively.

[0060] The above-mentioned temperature sensing unit 23 senses the operating temperature of the electric drive mechanism 12 and outputs a first temperature sensing signal. Further, it can also sense the internal temperature of the housing B and output a second temperature sensing signal to monitor the temperature of the overall motor (electronic) components.

[0061] The above-mentioned timing unit 24 provides a timing signal.

[0062] The above-mentioned lighting unit 25 is arranged at the default position at the front end of the housing B and is actuated according to a lighting signal to provide a lighting source, such as white light.

[0063] The above-mentioned front-end status warning unit 30 is arranged at the default position at the front end of the housing B and is actuated according to a first warning signal or a second warning signal, and outputs a preset colored light source. In implementation, the colored light source is selected from one of green light or red light; the first warning signal matches green light, and the second warning signal matches red light.

[0064] The aforementioned front-end status warning unit 30 includes at least one multi-color LED lamp (not shown in the figure) or a front-end single-color LED lamp 31.

[0065] The above-mentioned rear-end status warning unit 40 is arranged at the default position at the rear end of the housing B and is actuated according to a first warning signal, a second warning signal or a third warning signal, and outputs a preset colored light. In implementation, the colored light source is selected from one of green light, red light and yellow light; the first warning signal matches green light, the second warning signal matches red light, and the third warning signal matches yellow light.

[0066] The aforementioned rear-end status warning unit 40 includes at least one multi-color LED lamp (not shown in the figure) or a rear-end single-color LED lamp 41.

[0067] The above-mentioned sound warning unit 26 is arranged at the default position of the housing B and is actuated according to a sound signal to output a warning sound. In implementation, the presentation of the warning sound can be continuous or intermittent.

[0068] The above control unit 27 is electrically coupled to the power supply mechanism 11, the electric drive mechanism 12, the trigger switch 15, the touch switch 21, the power sensing unit 22, the temperature sensing unit 23, the timing unit 24, the lighting unit 25, the front-end status warning unit 30, the rear-end status warning unit 40, and the sound warning unit 26 respectively. According to the received touch signal, trigger signal, power signal, current signal, first and second temperature sensing signals, and timing signal, it selectively outputs lighting signals, electric drive signals, first warning signals, second warning signals, third warning signals, and sound signals.

[0069] The control unit 27 further includes a display interface 271 and an operation interface 272 provided at the default position of the housing B. It enables the user to input relevant set values through the display interface 271 and the operation interface 272.

[0070] The control unit 27 further includes set values default or set by the user for judging the abnormal locking state, such as protection temperature value, protection current value, timeout value, and low battery value.

[0071] The above is the lighting and status warning signal device of the electric oil pressure pulse tool provided by the present invention, and the introduction of each component and the assembly method. Now, the operating characteristics of the embodiment of the present invention are introduced as follows.

[0072] In the normal locking state, the values of the current signal, the first and second temperature sensing signals, and the timing signal obtained above are all less than or equal to the set values; conversely, in the abnormal locking state, the value of any one or a combination of the current signal, the first and second temperature sensing signals, and the timing signal is greater than the set value, and these abnormalities are used as a basis to prompt the user.

[0073] <Normal locking state>

[0074] The user assembles a tool head (not shown in the figure) on the striking shaft 131 of the oil pressure pulse type torque generating mechanism 13, and after sleeving the locking assembly (not shown in the figure) to be rotated, by pressing the trigger switch 15, a trigger signal is sent to the control unit 27. The control unit 27, according to the trigger signal and synchronously receiving the timing signal of the timing unit 24, selectively outputs a lighting signal and an electric drive signal to the lighting unit 25 and the electric drive mechanism 12.

[0075] The lighting unit 25 activates and outputs a lighting source according to the lighting signal, and the electric drive mechanism 12 activates according to the electric drive signal, driving the oil pressure pulse type torque generating mechanism 13, so that the tool head assembled on the striking shaft 131 pulls the locking assembly to rotate and screw into the default position.

[0076] After the component to be locked and fixed rotates and screws into the default position, a reaction force will be generated on the hydraulic pressure pulse type torque generating mechanism 13. When the torque output by the hydraulic pressure pulse type torque generating mechanism 13 is greater than the upper limit of the torque value set by the pressure relief mechanism 14, the pressure relief mechanism 14 will be triggered to act on the hydraulic pressure pulse type torque generating mechanism 13 to form pressure relief, causing the hydraulic pressure pulse type torque generating mechanism 13 to lose the driving force for rotating the component to be locked and fixed. (This action is the prior art)

[0077] During the actuation process of the above-mentioned pressure relief mechanism 14, the touch switch 21 will be triggered to act synchronously, and a touch signal will be output to the control unit 27. After receiving the touch signal, the control unit 27 selectively outputs a first warning signal to the front (rear) end status warning unit, causing the front (rear) end status warning unit to output a default colored light (such as green light), so that the user can visually know that the locking has been completed. During implementation, the control unit 27 can control the actuation time of the front (rear) end status warning unit, for example, it will be turned off after 2 seconds.

[0078] After the user sees the green light and releases the trigger switch 15, when the control unit 27 loses the trigger signal, it also stops outputting the lighting signal and the electric drive signal, causing the electric drive mechanism 12 and the lighting unit 25 to stop operating.

[0079] In addition to providing visual warnings through the front (rear) end status warning unit, the control unit 27 can also output a sound signal to the sound warning unit 26 to make it actuate and output a sound.

[0080] <Abnormal locking state>

[0081] When the user presses the trigger switch 15 and the hydraulic pressure pulse type torque generating mechanism 13 pulls the component to be locked and fixed to rotate and screw into the default position, if any of the following situations occurs, the control unit 27 outputs a second warning signal to the front (rear) end status warning unit, causing the front (rear) end status warning unit to output a default colored light (such as red light), so that the user can visually know and pause the operation. During implementation, the control unit 27 can control the actuation time of the front (rear) end status warning unit, for example, it will be turned off after 2 seconds.

[0082] In addition to providing visual warnings through the front (rear) end status warning unit, the control unit 27 can also output a sound signal to the sound warning unit 26 to make it actuate and output a sound.

[0083] The abnormal states include:

[0084] 1. The temperature sensing unit 23 senses the temperature of the electric drive mechanism 12 and outputs a first temperature sensing signal to the control unit 27. After comparison, if the control unit 27 is higher than the protection temperature value, it outputs a second warning signal.

[0085] 2. The temperature sensing unit 23 senses the temperature inside the housing B (generally referring to the overall temperature generated when the electronic components operate on the circuit board), and outputs a second temperature sensing signal to the control unit 27. When the control unit 27 compares and finds that it is higher than the protection temperature value, it outputs a second warning signal.

[0086] 3. The power sensing unit 22 should sense the current value at the input end of the electric drive mechanism 12, and output a current signal to the control unit 27. When the control unit 27 compares and finds that it is higher than the protection current value, it outputs a second warning signal.

[0087] 4. The power sensing unit 22 should sense the current value at the input end of the electric drive mechanism 12, and output a current signal to the control unit 27. The control unit 27 cooperates with the timing unit 24 to accumulate the time of the current signal (i.e., the cumulative time of the power supply mechanism 11 supplying power to the electric drive mechanism 12). When the cumulative time is greater than the time of the over-time value, it outputs a second warning signal.

[0088] <Power Abnormal State>

[0089] After the power sensing unit 22 senses the remaining power of the power supply mechanism 11, it outputs a power signal to the control unit 27. The control unit 27 compares the default low power value. If it is lower than the default value, it outputs a third warning signal to the backend status warning unit 40, so that the backend status warning unit 40 outputs yellow light, allowing the user to visually know the low power.

[0090] The above description is only a preferred embodiment of the present invention, intended to clarify the features of the present invention, and is not used to limit the scope of the embodiments of the present invention. The equivalent changes made by those of ordinary skill in the art according to the present invention, as well as the changes well-known to those skilled in the art, should still fall within the scope covered by the present invention.

Claims

1. An illumination and status warning signal device for an electric hydraulic pulse tool, characterized in that, it includes: a housing; a power supply mechanism assembled in the housing to provide a power supply; an electric drive mechanism assembled in the housing and actuated according to an electric drive signal to provide a driving power; a hydraulic pulse type torque generating mechanism connected in series with the electric drive mechanism; a pressure relief mechanism connected to the hydraulic pulse type torque generating mechanism to receive the pressure overflowing from the hydraulic pulse type torque generating mechanism; a trigger switch assembled in the housing to output a trigger signal when triggered; a touch switch arranged in the housing matching the pressure relief mechanism and outputting a touch signal when triggered by the pressure relief mechanism; a power sensing unit electrically coupled to the electric drive mechanism to sense the current value at the input end of the electric drive mechanism, outputting a current signal; a temperature sensing unit to sense the temperature of the electric drive mechanism and output a first temperature sensing signal; a timing unit to provide a timing signal; an illumination unit arranged at the front end of the housing and actuated according to an illumination signal; a front-end status warning unit arranged at the front end of the housing and actuating to output green light according to a first warning signal, or actuating to output red light according to a second warning signal; and a control unit electrically coupled to the power supply mechanism, the electric drive mechanism, the trigger switch, the touch switch, the power sensing unit, the temperature sensing unit, the timing unit, the illumination unit, and the front-end status warning unit respectively, and selectively outputting the illumination signal and the electric drive signal according to the received touch signal, trigger signal, current signal, first temperature sensing signal, and timing signal, and outputting the first warning signal when the current signal, the first temperature sensing signal, and the timing signal are less than a set value, or outputting the second warning signal when any one of the current signal, the first temperature sensing signal, and the timing signal is greater than the set value.

2. The illumination and status warning signal device for an electric hydraulic pulse tool according to claim 1, characterized in that, the set value includes a protection temperature value, a protection current value, and an over-time value.

3. The illumination and status warning signal device for an electric hydraulic pulse tool according to claim 1, characterized in that, the temperature sensing unit senses the internal temperature of the housing and outputs a second temperature sensing signal to the control unit, and the control unit selectively outputs the second warning signal.

4. The illumination and status warning signal device for an electric hydraulic pulse tool according to claim 1, characterized in that, a rear-end status warning unit is arranged at the rear end of the housing, electrically coupled to the control unit and the electric mechanism, and actuated according to the first warning signal and the second warning signal.

5. The illumination and status warning signal device for an electric hydraulic pulse tool according to claim 4, characterized in that, the power sensing unit senses the remaining power of the power supply mechanism and then outputs a power signal to the control unit, and the control unit selectively outputs a third warning signal to the rear-end status warning unit to make it actuate and output yellow light.

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