Brake induction device for protecting personnel safety based on single crystal furnace

Abstract

The utility model relates to the technical field of single crystal furnaces, in particular to a brake induction device for protecting personnel safety based on a single crystal furnace, which comprises a power supply for providing electric energy required by work for each device; the infrared sensor is arranged on the single crystal furnace and is used for acquiring the distance between an operator and the single crystal furnace; a first-level safety distance threshold value and a second-level safety distance threshold value are preset in the controller, and the controller is electrically connected with the infrared sensor and used for receiving and analyzing signals output by the infrared sensor and sending out related instructions according to the output signals; the alarm is electrically connected with the controller and is used for warning an operator; the brake sensing device is arranged in the working area, so that the auxiliary furnace chamber can make a judgment of stopping action or starting action according to the surrounding environment in the lifting or rotating process, and the personal injury of the auxiliary furnace chamber to operators is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of single crystal furnaces, in particular to a brake induction device based on single crystal furnaces to protect personnel safety. Background Art

[0002] A single crystal furnace is a device that uses a graphite heater to melt polycrystalline materials such as polysilicon in an inert gas (such as nitrogen, helium) environment and grows dislocation-free single crystals through the Czochralski method. Figure 5 As shown, the furnace body primarily consists of a main furnace chamber 6 and a secondary furnace chamber 7, connected by an isolation valve 8. The main furnace chamber 6 is configured for heating and melting silicon material, introducing seed crystals, and growing crystals, and is primarily composed of a furnace cover, a furnace barrel, and a furnace chassis. The secondary furnace chamber 7 is located above the main furnace chamber 6. An opening and closing mechanism enables the secondary furnace chamber 7 to be raised, lowered, and rotated, allowing for precise alignment with the isolation valve 8, thereby connecting the secondary furnace chamber 7 to the main furnace chamber 6. The secondary furnace chamber 7 is configured to provide a stable, pure growth environment for the single crystal. When the crystal grows to a certain length, the opening and closing mechanism precisely aligns the secondary furnace chamber 7 with the isolation valve 8. The isolation valve 8 is then opened, and the crystal is pulled from the main furnace chamber 6 and placed into the secondary furnace chamber 7 for further processing and protection.

[0003] In actual operation, the lifting and rotation actions of the auxiliary furnace chamber 7 are usually automated by a control program. Since the auxiliary furnace chamber 7 cannot make a judgment on whether to stop or start the action according to the surrounding environment during the lifting or rotation of the auxiliary furnace chamber 7, when the auxiliary furnace chamber 7 is in the process of lifting or rotating, and there is an operator manually operating the single crystal furnace, the movement of the auxiliary furnace chamber 7 will cause a great safety hazard to the operator. For example, at a single crystal production pulling site in 2024, during the descent of the auxiliary furnace chamber 7, the operator's head was pressed between the isolation valve 8 and the auxiliary furnace chamber 7, resulting in a fatal accident. Utility Model Content

[0004] The purpose of the utility model is to provide a brake induction device based on a single crystal furnace to protect personnel safety, so as to solve the problems raised in the above background technology.

[0005] The technical solution adopted in this utility model is:

[0006] A brake sensing device for protecting personnel safety based on a single crystal furnace, comprising:

[0007] Power supply, used to provide the power required for the operation of each device;

[0008] An infrared sensor is installed on the single crystal furnace to obtain the distance between the operator and the single crystal furnace;

[0009] a controller having a first-level safety distance threshold and a second-level safety distance threshold preset therein, the controller being electrically connected to the infrared sensor and configured to receive and analyze a signal output by the infrared sensor and issue relevant instructions based on the output signal;

[0010] an alarm, electrically connected to the controller, for alerting an operator;

[0011] in,

[0012] When the controller analyzes and finds that the output signal of the infrared sensor is within the first-level safety distance threshold range, the controller issues a warning command through the alarm;

[0013] When the controller analyzes and determines that the output signal of the infrared sensor is within the second-level safety distance threshold range, the controller issues a stop instruction to the auxiliary furnace chamber of the single crystal furnace.

[0014] Optionally, the second-level safety distance threshold is smaller than the first-level safety distance threshold.

[0015] Optionally, a filter is provided in the infrared sensor.

[0016] Optionally, the power source includes a battery.

[0017] Optionally, an automatic following component is also included, and the automatic following component is arranged on the single crystal furnace.

[0018] Optionally, the automatic following component includes:

[0019] A base, fixedly mounted on the single crystal furnace;

[0020] An upper shell is fixedly arranged on the base;

[0021] a lower housing, rotatably disposed at the lower end of the upper housing, on which the infrared sensor is mounted;

[0022] A circuit control device is arranged in the upper housing;

[0023] The motor is arranged in the upper housing and is electrically connected to the circuit control device.

[0024] Optionally, the circuit control device includes:

[0025] A single chip microcomputer sends a rotation or stop signal to the motor according to an output signal of the infrared sensor;

[0026] a wireless charging transmitter, electrically connected to the power source, for converting electrical energy into a magnetic field;

[0027] The wireless charging receiver is used to receive the magnetic field energy transmitted by the wireless charging transmitter and convert it into electrical energy to provide electrical energy for the single chip microcomputer.

[0028] Optionally, the base includes:

[0029] A fixing portion, fixedly arranged on the single crystal furnace;

[0030] The connecting portion has one end integrally formed with the fixing portion and the other end fixedly connected to the upper shell.

[0031] Optionally, the fixing portion is a plate-shaped structure.

[0032] Optionally, the connecting portion is a "Γ"-shaped structure.

[0033] Compared with the prior art, the beneficial effects of the present invention are:

[0034] In the present invention, a brake sensing device is provided in the working area, so that the auxiliary furnace chamber can make a judgment on whether to stop or start the action according to the surrounding environment during the process of lifting or rotating; when the auxiliary furnace chamber is in the process of lifting or rotating and an operator is manually operating the single crystal furnace, the auxiliary furnace chamber will automatically stop moving, thereby reducing the personal injury of the auxiliary furnace chamber to the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0036] Figure 1 This is a schematic diagram of the brake sensing device structure in this application;

[0037] Figure 2 This is a schematic diagram of the automatic following component structure;

[0038] Figure 3 This is a schematic diagram of the structure of an embodiment of the present application;

[0039] Figure 4 for Figure 3 A schematic diagram of the structure at center A;

[0040] Figure 5 It is a schematic diagram of the existing technology structure.

[0041] Reference numerals:

[0042] 1. Power supply; 2. Infrared sensor; 3. Controller; 4. Alarm;

[0043] 5. Automatic following assembly; 51. Base; 511. Fixing portion; 512. Connecting portion; 52. Upper housing; 53. Lower housing; 531. Mounting slot;

[0044] 6. Main furnace chamber; 7. Auxiliary furnace chamber; 8. Isolation valve. DETAILED DESCRIPTION

[0045] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0046] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but a person of ordinary skill in the art will recognize the application of other processes and / or the use of other materials.

[0047] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0048] Combine Figure 1 and Figure 5 As shown in the accompanying drawings, in order to solve the problem that the auxiliary furnace chamber 7 cannot judge whether to stop or start the action according to the surrounding environment during the lifting or rotation process, thereby causing casualties to operators, the present utility model provides a brake sensing device based on the single crystal furnace to protect personnel safety, including: a power supply 1, an infrared sensor 2, a controller 3, and an alarm 4.

[0049] The power supply 1 supplies power to the various devices in this embodiment. More specifically, the power supply 1 may be a battery, such as a rechargeable lithium battery. For ease of removal and replacement, a dry cell battery may also be used. Of course, in other embodiments, a power supply 1 plug with a power supply 1 adapter may also be used. This embodiment does not limit the form of the power supply 1; the power supply 1 may be any type that can provide the power required for operation of the various devices.

[0050] The infrared sensor 2 is disposed on the outer surface of the single crystal furnace and is configured to obtain the distance between the single crystal furnace and the operator or distance-related information.

[0051] The controller 3 is electrically connected to the infrared sensor 2 and is configured to determine whether the distance between the operator and the single crystal furnace is within a safe range based on the distance between the single crystal furnace and the operator. When the distance between the operator and the single crystal furnace is not within a safe range, a request signal is generated. The request signal is used to control the start and stop of the lifting or rotation action of the auxiliary furnace chamber 7, or to control the start and stop of the alarm 4.

[0052] The alarm 4 is electrically connected to the controller 3 and is configured to attract the operator's attention through some color or sound reminders.

[0053] Specifically, if Figure 1 As shown, a safety distance threshold is preset in the controller 3. The safety distance threshold is the safety distance between the operator and the single crystal furnace. The safety distance threshold can be set according to the actual application scenario. As a preferred embodiment, the safety distance threshold includes a first-level safety distance threshold and a second-level safety distance threshold, and the second-level safety distance threshold is less than the first-level safety distance threshold. The infrared sensor 2 sends the information of the distance between the single crystal furnace and the operator to the controller 3, and the controller 3 determines whether the distance between the operator and the single crystal furnace is within the first-level safety distance threshold or the second-level safety distance threshold. When the distance between the operator and the single crystal furnace is within the first-level safety distance threshold, the controller 3 sends a signal to the alarm 4, and the alarm 4 uses some colors or sound reminders to attract the operator's attention and warn the operator that there is a safety hazard here; when the distance between the operator and the single crystal furnace is within the second-level safety distance threshold, the controller 3 controls the auxiliary furnace chamber 7 to stop moving to ensure the personal safety of the operator.

[0054] Furthermore, in order to ensure full coverage of the detection of the working area, in this embodiment, the number of the infrared sensors 2 can be multiple, and the location of the infrared sensors 2 can be adjusted according to the actual application scenario.

[0055] Furthermore, a normally closed intermediate relay can be configured in the circuit for the controller 3 to control the auxiliary furnace chamber 7 to stop operation. The controller 3 outputs an electrical signal to the normally closed intermediate relay, the normally closed intermediate relay is energized and attracted, the normally closed contact is disconnected, the auxiliary furnace chamber 7 is not energized, and the auxiliary furnace chamber 7 stops operating.

[0056] Furthermore, in order to improve the accuracy and stability of the infrared sensor 2, a filter (not shown in the figure) is provided inside the infrared sensor 2. The filter ensures that the infrared sensor 2 only senses infrared rays within the wavelength range of infrared rays radiated by the human body, and does not sense infrared rays in other ranges.

[0057] Furthermore, in order to enable the infrared sensor 2 to achieve 360° all-round detection function, the brake sensing device also includes an automatic following component 5. Figure 2As shown, it includes: a base 51, an upper shell 52, a lower shell 53, a circuit control device (not shown in the figure) and a motor (not shown in the figure).

[0058] Among them, the base 51 is fixedly set on the outer surface of the single crystal furnace; the upper shell 52 is fixedly set on the base 51, and is configured as a carrier to carry other components; the lower shell 53 is rotatably set at the lower end of the upper shell 52, and is provided with a placement groove 531, and the infrared sensor 2 is placed in the placement groove 531; the circuit control device is set in the upper shell 52; the motor is set in the upper shell 52, and is electrically connected to the circuit control device, and the motor is configured to drive the lower shell 53 to rotate.

[0059] More specifically, the circuit control device includes several parts such as a single chip microcomputer, a wireless charging transmitter and a wireless charging receiver.

[0060] The microcontroller sends a signal to the motor to start or stop based on the output signal from the infrared sensor. The wireless charging transmitter is electrically connected to a power source and converts electrical energy into a magnetic field. The wireless charging receiver receives the magnetic field energy transmitted by the wireless charging transmitter and converts it into electrical energy to power the microcontroller. Both the wireless charging receiver and the wireless charging transmitter, as components of wireless charging technology, utilize existing technologies and are not specifically described in this embodiment.

[0061] When using, Figure 3-Figure 4 As shown, first fix the base 51 on the single crystal furnace and start the power supply. When the infrared sensor 2 located on the lower shell 53 detects the infrared signal of the human body, the infrared sensor 2 will send an electrical signal to the microcontroller. Through the program setting in the microcontroller, the microcontroller controls the motor, and the motor drives the lower shell 53 to rotate in the direction of the detected human infrared signal, thereby enabling the infrared sensor 2 to achieve 360° all-round detection function.

[0062] Furthermore, the base 51 further includes a fixing portion 511 and a connecting portion 512. The fixing portion 511 is provided on the single crystal furnace, and its shape is adapted to the shape of the single crystal furnace. As a preferred embodiment, as shown in the figure, the fixing portion 511 is a plate-like structure, and threads are provided through the four corners near the edge, and the fixing portion 511 is fixedly connected to the single crystal furnace through the threads. One end of the connecting portion 512 is integrally formed with the fixing portion 511, and the other end is fixedly connected to the upper shell 52. Figure 2 A specific structure of the connecting portion 512 is shown, and the connecting portion 512 is generally in a "Γ" structure.

[0063] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A brake induction device for protecting personnel safety based on a single crystal furnace, characterized in that: include: Power supply, used to provide the power required for the operation of each device; An infrared sensor is installed on the single crystal furnace to obtain the distance between the operator and the single crystal furnace; A controller having a first-level safety distance threshold and a second-level safety distance threshold preset therein, the controller being electrically connected to the infrared sensor, and being used to receive and analyze the signal output by the infrared sensor and to issue relevant instructions based on the output signal; an alarm being electrically connected to the controller, and being used to alert an operator; wherein, when the controller analyzes and concludes that the output signal of the infrared sensor is within the first-level safety distance threshold, the controller issues a warning instruction through the alarm; and when the controller analyzes and concludes that the output signal of the infrared sensor is within the second-level safety distance threshold, the controller issues a stop instruction to the auxiliary furnace chamber of the single crystal furnace.

2. The brake induction device for protecting personnel safety based on a single crystal furnace according to claim 1 is characterized in that: The second-level safety distance threshold is smaller than the first-level safety distance threshold.

3. The braking induction device for protecting personnel safety based on a single crystal furnace according to claim 1 is characterized in that: A filter is arranged in the infrared sensor.

4. The brake sensing device for protecting personnel safety based on a single crystal furnace according to claim 1 is characterized in that: The power source includes a battery.

5. The brake sensing device for protecting personnel safety based on a single crystal furnace according to claim 1 is characterized in that: It also includes an automatic following component, which is arranged on the single crystal furnace.

6. The braking induction device for protecting personnel safety based on a single crystal furnace according to claim 5 is characterized in that: The automatic following component includes: a base, fixedly set on the single crystal furnace; an upper shell, fixedly set on the base; a lower shell, rotatably set at the lower end of the upper shell, on which the infrared sensor is placed; a circuit control device, set in the upper shell; a motor, set in the upper shell, and electrically connected to the circuit control device.

7. The brake induction device for protecting personnel safety based on a single crystal furnace according to claim 6 is characterized in that: The circuit control device includes: a single-chip microcomputer, which sends a rotation or stop signal to the motor according to the output signal of the infrared sensor; a wireless charging transmitter, which is electrically connected to the power supply and is used to convert electrical energy into a magnetic field; and a wireless charging receiver, which is used to receive the magnetic field energy transmitted by the wireless charging transmitter and convert it into electrical energy to provide electrical energy for the single-chip microcomputer.

8. The brake induction device for protecting personnel safety based on a single crystal furnace according to claim 6, characterized in that: The base includes: a fixing portion fixedly arranged on the single crystal furnace; and a connecting portion, one end of which is integrally formed with the fixing portion and the other end of which is fixedly connected to the upper shell.

9. The braking induction device for protecting personnel safety based on a single crystal furnace according to claim 8, characterized in that: The fixing portion is a plate-shaped structure.

10. The brake induction device for protecting personnel safety based on a single crystal furnace according to claim 8, characterized in that: The connecting portion is a "Γ"-shaped structure.

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