CN218443907U

CN218443907U - Laser marking tool capable of adjusting laser line brightness

Info

Publication number: CN218443907U
Application number: CN202222675636.9U
Authority: CN
Inventors: 徐忠鑫; 于健; 徐平
Original assignee: Jiangsu Mingyang Measuring Tools Co ltd
Current assignee: Jiangsu Mingyang Measuring Tools Co ltd
Priority date: 2022-10-11
Filing date: 2022-10-11
Publication date: 2023-02-03
Anticipated expiration: 2032-10-11

Abstract

The utility model discloses a can adjust laser marking instrument of laser line luminance, it includes the casing to and set up the laser emission subassembly in the casing, PCB control assembly, power supply unit, laser emission subassembly and power supply unit are connected with PCB control assembly electricity, PCB control assembly is including the luminance regulating circuit who is used for adjusting the laser line luminance of laser emission subassembly, luminance regulating circuit includes the silicon controlled rectifier, installation adjustting of the lighteness knob on the casing, it is connected with luminance regulating circuit, supply the user to adjust the laser line luminance of laser emission subassembly. This laser marking instrument can compromise the life of laser line luminance and machine, convenient to use, and experience and feel better.

Description

Laser marking tool capable of adjusting laser line brightness

Technical Field

The utility model relates to a laser marking instrument field especially relates to a can adjust laser marking instrument of laser line luminance.

Background

The laser marking tool is a common tool in the fields of decoration and fitment, and the purpose of measurement is finally realized by emitting laser beams and enabling the laser beams to form a laser surface through a prism light guide system so as to project horizontal and vertical laser lines on a target object.

The brightness of the laser line projected by the laser line tool is a very important parameter for the user experience. In the safety regulation allowed range, the higher the laser line brightness, the more use scenes can be covered, for example, under the condition that the external illumination intensity is higher, if the laser line brightness is lower, the laser line is not clear or even invisible, and inconvenience is brought to use. Therefore, the existing laser line tool can not take account of both the brightness of the laser line and the service life of the machine.

Disclosure of Invention

For solving the not enough of prior art existence, the utility model provides a can adjust laser marking instrument of laser line luminance, its life that can compromise laser line luminance and machine.

In order to realize the above object, the utility model discloses a can adjust laser marking instrument of laser line luminance, which comprises a housing, and set up the laser emission subassembly in the casing, PCB control assembly, power supply unit, laser emission subassembly and power supply unit are connected with PCB control assembly electricity, and PCB control assembly is including the luminance regulating circuit who is used for adjusting the laser line luminance of laser emission subassembly, and luminance regulating circuit includes the silicon controlled rectifier, installs the adjustting of the lighteness knob on the casing, and it is connected with luminance regulating circuit, supplies the user to adjust the laser line luminance of laser emission subassembly.

In one embodiment, the brightness adjusting circuit further includes a potentiometer, a capacitor, a first resistor, and a second resistor, two fixed pins of the potentiometer are respectively connected to the positive electrode and the negative electrode of the brightness adjusting circuit, one end of the capacitor is connected to a movable pin of the potentiometer, and the other end of the capacitor is connected to the negative electrode of the brightness adjusting circuit.

In one embodiment, the anode and the cathode of the controllable silicon are respectively connected with the anode and the cathode of the brightness adjusting circuit, the control electrode of the controllable silicon is connected with two branch circuits, one branch circuit is connected with a first resistor in series and is connected with a movable pin of the potentiometer, and the other branch circuit is connected with a second resistor in series and is connected with the cathode of the brightness adjusting circuit.

In one embodiment, the laser lamp of the brightness adjusting circuit is connected between the anode of the brightness adjusting circuit and the anode of the thyristor.

In one embodiment, the thyristor is a one-way thyristor.

In one embodiment, the capacitance is a 10uF electrolytic capacitance.

In one embodiment, the PCB control assembly is disposed above the laser emitting assembly, and the brightness adjustment knob is mounted on the top of the housing directly above the PCB control assembly.

Has the advantages that:

the utility model discloses a laser marking instrument that can adjust laser line luminance adds the luminance control circuit in PCB control assembly for laser marking instrument has the function of laser line luminance control, and the user can freely adjust laser line luminance according to the illumination intensity of work scene, has solved the problem that current laser marking instrument can't compromise laser line luminance and the life of machine; additionally, the utility model discloses a laser line brightness control circuit adopts the silicon controlled rectifier, its make full use of the advantage of silicon controlled rectifier for this brightness control circuit has the reaction fast, no spark, noiselessness, with low costs, and can be with the powerful advantage of low-power control.

Drawings

The present invention will be further described and illustrated with reference to the accompanying drawings.

Fig. 1 is a perspective view of a laser marking tool according to a preferred embodiment of the present invention.

Fig. 2 is an exploded view of the laser striping tool of fig. 1.

Fig. 3 is a circuit diagram of brightness adjustment for a laser line marking tool.

Reference numerals:

100. a laser marking tool; 1. a housing; 2. a laser emitting assembly; 3. a PCB control assembly; 4. a power supply section; 5. a brightness adjusting circuit; 10. a brightness adjusting knob; r1, a potentiometer; c1, capacitance; r2, a first resistor; r3 and a second resistor; MCR and controllable silicon; A. a silicon controlled anode; K. a thyristor cathode; G. a silicon controlled control electrode; l, laser lamp.

Detailed Description

The technical solution of the present invention will be more clearly and completely explained by the description of the preferred embodiments of the present invention with reference to the accompanying drawings.

The utility model provides a can adjust laser marking instrument of laser beam luminance, it includes the casing, and set up the laser emission subassembly in the casing, PCB control assembly, power supply unit, laser emission subassembly and power supply unit are connected with PCB control assembly electricity, PCB control assembly is including the adjustting of the lighteness circuit that is used for adjusting the laser beam luminance of laser emission subassembly, adjustting of the lighteness circuit includes the silicon controlled rectifier, install adjustting of the lighteness knob on the casing, it is connected with adjustting of the lighteness circuit, the laser beam luminance that supplies the user to adjust the laser emission subassembly.

Above-mentioned the utility model discloses a laser marking instrument is owing to set up the adjustting of lighteness circuit, therefore has the function of adjusting the laser line luminance, and the user can adjust the luminance of laser line according to the light shade of job scene to solved the defect that current laser line luminance unadjustable laser marking instrument exists, namely, if laser line luminance is on the low side, then under the higher circumstances of illumination intensity, the laser line is clear inadequately, influences the use; if the laser line brightness is too high, the energy loss of the battery is affected. Additionally, the utility model discloses a brightness control circuit adopts the silicon controlled rectifier to adjust luminance, the advantage of make full use of silicon controlled rectifier to make brightness control circuit have the reaction fast, do not have spark, noiselessness, with low costs, and can be with the powerful advantage of low-power control.

As shown in fig. 1 and 2, in a preferred embodiment, a laser marking tool 100 capable of adjusting the brightness of a laser line comprises a housing 1, a laser emitting assembly 2, a PCB control assembly 3, and a power supply portion 4 disposed in the housing 1, wherein the laser emitting assembly 2 and the power supply portion 4 are electrically connected to the PCB control assembly 3, the PCB control assembly 3 comprises a brightness adjusting circuit 5 for adjusting the brightness of the laser line of the laser emitting assembly 2, the brightness adjusting circuit 5 comprises a silicon controlled rectifier 50, and a brightness adjusting knob 10 is mounted on the housing 1 and connected to the brightness adjusting circuit 5 for a user to adjust the brightness of the laser line of the laser emitting assembly 2.

Specifically, the housing 1 is assembled by left and right housing halves, and a cavity for accommodating components is formed inside. The laser emission component 2 is arranged in the middle of the cavity, the power supply part 4 is arranged on the back of the laser emission component 2, the back is the surface opposite to the emission surface of the laser emission component 2, and the PCB control component 3 is arranged above the laser emission component 2, namely the top of the cavity. The brightness adjusting knob 10 is installed on the top of the casing 1 at a position above the PCB control assembly 3 and close to the PCB control assembly 3, thereby facilitating the connection of the brightness adjusting knob 10 with the brightness adjusting circuit 5.

As shown in fig. 3, the brightness adjusting circuit 5 further includes a potentiometer R1, a capacitor C1, a first resistor R2, and a second resistor R3, two fixed pins of the potentiometer R1 are respectively connected to the positive electrode and the negative electrode of the brightness adjusting circuit 5, one end of the capacitor C1 is connected to a movable pin of the potentiometer R1, and the other end is connected to the negative electrode of the brightness adjusting circuit 5. An anode A and a cathode K of the silicon controlled rectifier MCR are respectively connected to the positive electrode and the negative electrode of the brightness adjusting circuit 5, a control electrode G of the silicon controlled rectifier MCR is connected with two branch circuits, one branch circuit is connected with a first resistor R2 in series and is connected with a movable pin of the potentiometer R1, and the other branch circuit is connected with a second resistor R3 in series and is connected with the negative electrode of the brightness adjusting circuit 5. The laser lamp L of the brightness adjusting circuit 5 is connected between the positive pole of the brightness adjusting circuit 5 and the anode A of the silicon controlled rectifier MCR. Preferably, the silicon controlled rectifier MCR is a one-way silicon controlled rectifier, the capacitor C1 is a 10uF electrolytic capacitor, the first resistor R2 and the second resistor R3 are current limiting resistors with the resistance value of 1K, and the potentiometer R1 is a variable resistor with the resistance value of 20K.

The working principle of the brightness adjusting circuit is as follows:

the current charges an electrolytic capacitor C1 through a potentiometer R1, the electrolytic capacitor C1 is connected to a control electrode G of the unidirectional silicon controlled rectifier through a branch circuit where a current-limiting resistor R2 is located after being charged to a certain degree, and positive trigger voltage is provided for the control electrode G, so that the unidirectional silicon controlled rectifier MCR is triggered, the circuit is conducted, and a laser lamp L is lighted; the time of the charging and discharging process of the electrolytic capacitor C1 is controlled by regulating the current value of the potentiometer R1 to limit the current flowing to the electrolytic capacitor C1, the charging current is larger, the charging and discharging speed of the electrolytic capacitor is higher, the frequency of the signal for starting the one-way silicon controlled rectifier MCR is high, the frequency for lighting the laser lamp L is high, after the high-frequency lighting superposition, the brightness of the laser lamp is observed by naked eyes, and otherwise, the brightness is dark.

The brightness adjusting knob 10 is connected with a movable pin of the potentiometer R1, and the brightness of the laser lamp L can be adjusted by rotating the brightness adjusting knob 10, so that the aim of adjusting the brightness of the laser line is fulfilled.

The above detailed description merely describes the preferred embodiments of the present invention and does not limit the scope of the present invention. Without departing from the design concept and spirit scope of the present invention, the ordinary skilled in the art should belong to the protection scope of the present invention according to the present invention provides the text description and drawings to the various modifications, replacements and improvements made by the technical solution of the present invention. The scope of protection of the present invention is determined by the claims.

Claims

1. The utility model provides a can adjust laser marking instrument of laser line luminance, includes the casing, and sets up laser emission subassembly, PCB control assembly, the power part in the casing, laser emission subassembly and power part with PCB control assembly electricity is connected, its characterized in that, PCB control assembly is including being used for adjusting the luminance control circuit of the laser line luminance of laser emission subassembly, luminance control circuit includes the silicon controlled rectifier, installation luminance adjust knob on the casing, it with luminance control circuit connects, supplies the user to adjust the laser line luminance of laser emission subassembly.

2. The laser marking tool capable of adjusting the brightness of the laser line as claimed in claim 1, wherein the brightness adjusting circuit further comprises a potentiometer, a capacitor, a first resistor and a second resistor, two fixed pins of the potentiometer are respectively connected to the anode and the cathode of the brightness adjusting circuit, one end of the capacitor is connected with the movable pin of the potentiometer, and the other end of the capacitor is connected with the cathode of the brightness adjusting circuit.

3. The laser marking tool capable of adjusting the brightness of the laser beam as claimed in claim 2, wherein the anode and the cathode of the thyristor are respectively connected to the anode and the cathode of the brightness adjusting circuit, the control electrode of the thyristor is connected to two branch circuits, one branch circuit is connected in series to the first resistor and is connected to the active pin of the potentiometer, and the other branch circuit is connected in series to the second resistor and is connected to the cathode of the brightness adjusting circuit.

4. The laser marking tool capable of adjusting the brightness of a laser beam as claimed in claim 3, wherein the laser lamp of the brightness adjusting circuit is connected between the anode of the brightness adjusting circuit and the anode of the thyristor.

5. The laser striping tool of claim 1, wherein the thyristor is a one-way thyristor.

6. The laser marking tool capable of adjusting the brightness of a laser line as claimed in claim 2, wherein the capacitor is a 10uF electrolytic capacitor.

7. The laser striping tool of claim 1, wherein the PCB control assembly is disposed above the laser emitting assembly and the brightness adjustment knob is mounted on top of the housing directly above the PCB control assembly.