Temperature control power-off device for preventing high-temperature indium melting

Abstract

The invention provides a temperature control power-off device for preventing high-temperature indium melting, and belongs to the technical field of temperature control power-off devices. Comprising a fixed metal plate, a protective cover is arranged at the upper end of the fixed metal plate, a mounting base is arranged below the inner side of the protective cover, a fixed guide rail is arranged at the upper end of the mounting base, a movable guide rail is arranged on the inner side of the upper end of the fixed guide rail, and mechanical relays are arranged on the front sides of the upper ends of the fixed guide rail and the movable guide rail. A mechanical relay is arranged to convert a control signal into a high-voltage signal, then a voltage signal amplifier amplifies the signal and transmits the signal to an alternating-current contactor, then the alternating-current contactor is controlled to be switched on to work, the alternating-current contactor controls a high-temperature air switch of a machine table through a five-core terminal strip, and the working states of all heating rods and heating pieces are changed. Indium melting caused by continuous heating is avoided; meanwhile, the alternating current contactor is connected with the leakage protector, so that the leakage phenomenon possibly generated when high voltage is loaded is prevented, and safety accidents caused by leakage are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of temperature-controlled power-off devices, and in particular to a temperature-controlled power-off device capable of preventing high-temperature molten indium. Background Art

[0002] Current semiconductor testing equipment has a temperature control system with a certain degree of temperature control capability. When the machine power reaches a threshold, it can trigger a power outage to stop heating. However, before reaching the threshold, the temperature is already high enough to easily cause indium to melt in the machine.

[0003] At present, the power-off of the existing temperature control system mainly depends on the output power value. Only when the power reaches the set threshold will the power supply be controlled to cut off to stop heating. If the power-off action is not timely, it is easy to cause frequent indium melting, which further leads to machine downtime, wastes time and manpower and material resources, and affects normal production efficiency; secondly, most of the existing power-off devices rely on programs for intelligent control. There is a risk of power-off failure when the equipment fails, and dangerous situations are prone to damage the equipment. Therefore, the present application provides a temperature-controlled power-off device that can prevent high-temperature indium melting to meet the needs. Summary of the Invention

[0004] (1) Technical problems solved In response to the shortcomings of the existing technology, the present invention provides a temperature-controlled power-off device that can prevent high-temperature molten indium. It solves the problem that during the operation of existing semiconductor testing machines, the temperature control system is not sensitive enough, which may cause continued heating after the temperature reaches the set value. In addition, most existing power-off devices rely on intelligent program control, which may cause power-off failure in the event of equipment failure.

[0005] (2) Technical solution In order to solve the above technical problems, the present invention provides the following technical solutions: A temperature-controlled power-off device for preventing high-temperature molten indium, comprising a fixed sheet metal, a protective cover being provided at the upper end of the fixed sheet metal, a mounting base being provided below the inner side of the protective cover, a fixed guide rail being provided at the upper end of the mounting base, a movable guide rail being provided on the inner side of the upper end of the fixed guide rail, a mechanical relay being provided on the front side of the upper ends of the fixed guide rail and the movable guide rail, an AC contactor being connected to the rear side of the mechanical relay, a leakage protector being connected to the rear side of the AC contactor, a five-core terminal block being connected to the rear side of the leakage protector, a rotating module being provided in the middle of the rear side of the mounting base, an emergency protection module being provided at the front end of the rotating module, a voltage signal amplifier being provided on the left side of the outer end of the mechanical relay, and a short-circuit fault sensor being provided in the middle below the AC contactor.

[0006] Preferably, the mounting base includes a protruding plate, a longitudinal groove, a transverse groove, a chamfered groove and an insertion rod. A longitudinal groove is provided in the middle of the upper end of the protruding plate, transverse grooves are provided on the front and rear sides of the longitudinal groove, chamfered grooves are provided on the front and rear sides of the upper end of the protruding plate, and an insertion rod is provided inside the longitudinal groove.

[0007] Preferably, the movable guide rail includes a left rail, a right rail, a blocking block, a through-hole and a connecting screw. The left side of the left rail is provided with a right rail, and the front and rear sides of the lower ends of the left rail and the right rail are provided with blocking blocks. A through-hole is provided in the middle of the blocking block, and the front and rear sides of the upper ends of the left rail and the right rail are provided with connecting screws.

[0008] Preferably, the rotation module includes an induction motor box, a screw, a bearing, a guide block and a limit plate. The front end of the induction motor box is provided with a screw, and bearings are provided on the front and rear sides of the outer end of the screw. The middle part of the bearing is clamped and installed with a guide block, and a limit plate is provided at the lower rear side of the outer end of the guide block.

[0009] Preferably, the emergency protection module includes a column, a cross bar, an insulating rod, an octagonal screw and a slider, a cross bar is provided above the left and right sides of the outer end of the column, an insulating rod is provided on the front and back sides of the outer end of the cross bar, an octagonal screw is provided at the contact end of the cross bar and the column, and a slider is provided at the lower end of the column.

[0010] Preferably, the fixed sheet metal and the protective cover are assembled into an integrated structure by fixing screws, a semicircular hole is provided at the contact end of the lower end of the protective cover and the fixed sheet metal, the lower end of the mounting base and the upper end of the fixed sheet metal are fitted together, and are reinforced by fixing screws on the left and right sides, the diameter of the lower end of the fixed guide rail is consistent with the diameter of the upper end of the mounting base, a through slot is provided on the inner side of the upper end of the fixed guide rail, and the angle of the through slot is consistent with the angle of the slot opened at the upper end of the mounting base.

[0011] Preferably, the lower end of the movable guide rail passes through the inner side of the fixed guide rail and extends to the inner side of the mounting base. The mechanical relay, AC contactor, leakage protector and five-core terminal block are electrically connected to each other, and the lower ends of the four are provided with a clamping base. The mechanical relay and the voltage signal amplifier are electrically connected to each other, the power input end of the short-circuit fault sensor is electrically connected to the power output end of the mechanical relay, and the power output end of the short-circuit fault sensor is electrically connected to the power input end of the AC contactor.

[0012] Preferably, splicing screw holes are provided at the four corners of the upper end of the protruding plate, the inner side of the lower end of the protruding plate is a rectangular hollow structure, and embedded grooves are provided on the front and rear sides of the outer end of the protruding plate, and the transverse length of the embedded groove is equal to the transverse length of the transverse groove and the chamfered groove, and the transverse grooves are symmetrically distributed.

[0013] Preferably, the installation angles of the left rail and the right rail are exactly opposite, and a card slot is opened at the upper end of the equal side of the left rail and the right rail, there are four card blocks symmetrically distributed, and there are four connecting screws symmetrically distributed, and the lower ends of the four connecting screws all pass through the inner side of the left rail and the right rail and extend to the inner side of the card block.

[0014] Preferably, a servo motor, a signal processing circuit, a control circuit and a drive circuit are installed inside the induction motor box, and the transmission end of the servo motor and the screw are spliced together to form an integrated structure. The front end of the screw passes through the interior of the bearing and the guide block and extends to the rear side. There are two guide blocks and two limit plates symmetrically distributed, and the contact end of the limit plate and the guide block is reinforced by screws.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: In the above scheme, the control signal is converted into a high-voltage signal through the mechanical relay, and then the voltage signal amplifier amplifies the signal and transmits it to the AC contactor, thereby controlling the AC contactor to turn on the work. The AC contactor controls the high-temperature circuit breaker of the machine through the five-core terminal block, changes the working state of each heating rod and heating plate, and avoids the melting of indium caused by continuous heating; at the same time, the AC contactor is connected to the leakage protector to prevent the leakage phenomenon that may occur when the load is high voltage, avoid safety accidents caused by leakage, ensure the safety and reliability of the entire operation process, effectively avoid the melting of indium caused by continuous heating, and at the same time ensure the safety of the operation process, thereby improving the operating efficiency and reliability of the semiconductor testing machine.

[0016] Through the provided rotating module, the emergency protection module can be rotated to drive the emergency protection module to move forward and backward in the longitudinal groove opened on the inner side of the upper end of the mounting base and the fixed guide rail, and a T-shaped blocking structure composed of the column, cross bar and insulating rod in the emergency protection module is located in the area between the mechanical relay and the AC contactor. When the AC contactor controls the high-temperature circuit breaker of the machine through the five-core terminal block and fails to cut off the power, the short-circuit fault sensor will transmit the fault signal to the rotating module, and the servo motor installed inside the induction motor box drives the screw to rotate. The screw and the column in the emergency protection module are installed in a spiral sleeve manner, which will push the slider at the lower end of the column to move backward along the longitudinal groove, allowing the insulating rods installed on the left and right cross bars to contact the mechanical relay and push it backward, so that the mechanical relay and the AC contactor are separated and powered off from the mechanical structure, thereby ensuring mechanical power off when the high-temperature circuit breaker fails and cannot cut off the power, which can significantly improve the safety and reliability of the temperature control system.

[0017] By setting up fixed guide rails and movable guide rails, the lower end block of the movable guide rail passes through the slot opened on the inner side of the fixed guide rail and extends to the horizontal slot opened on the upper end of the mounting base, and the plug rod thread passes through the through hole opened inside the block. Since the threads opened on the left and right sides of the outer end of the plug rod are exactly opposite, the distance between the left rail and the right rail and the side wall of the fixed guide rail can be adjusted by rotating the plug rod. Compared with traditional fixed guide rails, it can adapt to different models of accessories, thereby improving the applicability of use.

[0018] To sum up, the present invention has the advantages of automatically cutting off the power of the heating system when the equipment reaches the high temperature threshold, effectively avoiding the indium melting phenomenon caused by continuous high-temperature heating; at the same time, mechanical power off can be performed when the high-temperature circuit breaker fails and cannot cut off the power, which can significantly improve the safety and reliability of the temperature control system; in addition, a leakage protector is installed on the power supply line of the AC contactor to ensure that leakage can be detected in time and the power supply can be cut off to prevent safety accidents caused by leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the installation position and angle of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 This is an exploded schematic diagram of the three-dimensional structure of the mounting base, fixed guide rail and movable guide rail of the present invention; Figure 4 This is a schematic diagram of the assembly structure of the fixed guide rail, movable guide rail, mechanical relay, AC contactor, leakage protector and five-core terminal block of the present invention; Figure 5 This is a schematic diagram of the three-dimensional assembly structure of the mounting base, rotating module and emergency protection module of the present invention; Figure 6 This is a schematic diagram of the explosion of the three-dimensional structure of the rotating module and the emergency protection module of the present invention; Figure 7 This is a schematic diagram of the three-dimensional installation structure of the mechanical relay and voltage signal amplifier of the present invention; Figure 8 This is a schematic diagram of the three-dimensional installation structure of the AC contactor and the short-circuit fault sensor of the present invention; Figure 9 This is a schematic diagram of the three-dimensional structure of the leakage protector of the present invention; Figure 10 This is a schematic diagram of the three-dimensional structure of a five-core terminal block of the present invention; Figure 11 This is a wiring diagram of the over-temperature protection device of the present invention.

[0020] [Reference Signs] 1. Fixed sheet metal; 2. Protective cover; 3. Mounting base; 4. Fixed guide rail; 5. Moving guide rail; 6. Mechanical relay; 7. AC contactor; 8. Leakage protector; 9. Five-core terminal block; 10. Rotation module; 11. Emergency protection module; 12. Voltage signal amplifier; 13. Short-circuit fault sensor; 301. Raised plate; 302. Longitudinal groove; 303. Horizontal groove; 304. Chamfered groove; 305. Insert rod; 501. Left rail; 502. Right rail; 503. Block; 504. Perforation; 505. Connecting screw; 101. Induction motor box; 102. Screw; 103. Bearing; 104. Guide block; 105. Limit plate; 111. Column; 112. Crossbar; 113. Insulating support rod; 114. Octagonal screw; 115. Slider.

[0021] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the appended claims. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The following describes in detail a temperature-controlled power-off device for protecting against high-temperature molten indium provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, for the sake of completeness, the following embodiments are optimal and preferred embodiments, and those skilled in the art may employ alternative implementations for known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0024] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0025] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0026] It will be understood that the meanings of “on,” “over,” and “above” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes being “on” something with intervening features or layers, and “on” or “over” means not only “on” or “above” something, but also includes being “on” or “above” something with no intervening features or layers.

[0027] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0028] like Figures 1 to 11 As shown, an embodiment of the present invention provides a temperature-controlled power-off device for preventing high-temperature molten indium, including a fixed sheet metal 1, a protective cover 2 is provided at the upper end of the fixed sheet metal 1, a mounting base 3 is provided below the inner side of the protective cover 2, a fixed guide rail 4 is provided at the upper end of the mounting base 3, a movable guide rail 5 is provided on the inner side of the upper end of the fixed guide rail 4, a mechanical relay 6 is provided on the front side of the upper end of the fixed guide rail 4 and the movable guide rail 5, an AC contactor 7 is connected to the rear side of the mechanical relay 6, a leakage protector 8 is connected to the rear side of the AC contactor 7, a five-core terminal block 9 is connected to the rear side of the leakage protector 8, a rotating module 10 is provided in the middle of the rear side of the mounting base 3, an emergency protection module 11 is provided at the front end of the rotating module 10, a voltage signal amplifier 12 is provided on the left side of the outer end of the mechanical relay 6, and a short-circuit fault sensor 13 is provided in the middle below the AC contactor 7.

[0029] The fixed sheet metal 1 is an integrated sheet metal bending molding, and the fixed sheet metal 1 and the protective cover 2 are assembled into an integrated structure by fixing screws. A semicircular line hole is opened at the contact end position of the lower end of the protective cover 2 and the fixed sheet metal 1. The lower end of the mounting base 3 and the upper end of the fixed sheet metal 1 are fitted together and reinforced by fixing screws on the left and right sides. The diameter of the lower end of the fixed guide rail 4 is consistent with the diameter of the upper end of the mounting base 3. A through slot is opened on the inner side of the upper end of the fixed guide rail 4, and the angle of the through slot and the slot opened at the upper end of the mounting base 3 are consistent. The lower end of the movable guide rail 5 passes through the inner side of the fixed guide rail 4 and extends to the inner side of the mounting base 3. The mechanical relay 6, the AC contactor 7, the leakage protector 8 and the five-core terminal block 9 are electrically connected to each other, and the lower ends of the four are provided with a holding base. The mechanical relay 6 and the voltage signal amplifier 12 are electrically connected to each other, the power input end of the short-circuit fault sensor 13 is electrically connected to the power output end of the mechanical relay 6, and the power output end of the short-circuit fault sensor 13 is electrically connected to the power input end of the AC contactor 7; At the beginning of work, the control signal is converted into a high-voltage signal through the set mechanical relay 6, and then the voltage signal amplifier 12 amplifies the signal and transmits it to the AC contactor 7, thereby controlling the AC contactor 7 to turn on the work, and the AC contactor 7 controls the high-temperature circuit breaker switch of the machine through the five-core terminal block 9, changes the working state of each heating rod and heating plate, and avoids the melting of indium caused by continuous heating; at the same time, the AC contactor 7 is connected to the leakage protector 8 to prevent the leakage phenomenon that may be generated when the load is high voltage, avoid safety accidents caused by leakage, ensure the safety and reliability of the entire operation process, effectively avoid the melting of indium caused by continuous heating, and at the same time ensure the safety of the operation process, thereby improving the operating efficiency and reliability of the semiconductor testing machine.

[0030] like Figure 3 As shown, in this embodiment, the mounting base 3 includes a protruding plate 301, a longitudinal groove 302, a transverse groove 303, a chamfered groove 304 and an insertion rod 305. A longitudinal groove 302 is provided in the middle of the upper end of the protruding plate 301, and transverse grooves 303 are provided on the front and rear sides of the longitudinal groove 302. Chamfered grooves 304 are provided on the front and rear sides of the upper end of the protruding plate 301, and an insertion rod 305 is provided inside the longitudinal groove 302; the movable guide rail 5 includes a left rail 501, a right rail 502, a clamping block 503, a through-hole 504 and a connecting screw 505. The left side of the left rail 501 is provided with a right rail 502, and clamping blocks 503 are provided on the front and rear sides of the lower ends of the left rail 501 and the right rail 502. A through-hole 504 is provided in the middle of the clamping block 503, and connecting screws 505 are provided on the front and rear sides of the upper ends of the left rail 501 and the right rail 502.

[0031] The upper ends of the left and right sides of the convex plate 301 are provided with reinforcement holes, the four corners of the upper end of the convex plate 301 are provided with splicing screw holes, the inner side of the lower end of the convex plate 301 is a rectangular hollow structure, the front and rear sides of the outer end of the convex plate 301 are provided with embedded grooves, and the horizontal length of the embedded grooves is equal to the horizontal length of the horizontal grooves 303 and the chamfered grooves 304, the horizontal grooves 303 are symmetrically distributed, and the left and right sides of the outer end of the insertion rod 305 are provided with threads, and the angles of the threads on the left and right sides are completely opposite; the size and shape of the left rail 501 and the right rail 502 are exactly the same, except that the left rail 501 and the right rail 502 are different. The installation angles are completely opposite, and a card slot is provided at the upper ends of the equal sides of the left rail 501 and the right rail 502. There are four symmetrically distributed card blocks 503, of which two are distributed at the lower ends of the left rail 501 and the right rail 502, and the through-hole 504 opened on the inner side of the card block 503 at the lower end of the left rail 501 is opened at an angle completely opposite to the through-hole 504 opened on the inner side of the card block 503 at the lower end of the right rail 502. There are four symmetrically distributed connecting screws 505, and the lower ends of the four connecting screws 505 pass through the inner sides of the left rail 501 and the right rail 502 and extend to the inner side of the card block 503.

[0032] When starting work, the movable guide rail 5 is set. Since the lower end block 503 of the movable guide rail 5 passes through the slot opened on the inner side of the fixed guide rail 4 and extends to the horizontal slot 303 opened on the upper end of the mounting base 3, and the insertion rod 305 is threaded through the through hole 504 opened inside the block 503, since the threads opened on the left and right sides of the outer end of the insertion rod 305 are exactly opposite, it is only necessary to rotate the insertion rod 305 to adjust the distance between the left rail 501 and the right rail 502 and the side wall of the fixed guide rail 4. Compared with traditional fixed guide rails, it can adapt to accessories of different models, thereby improving the applicability of use.

[0033] like Figure 2 、 Figure 5 and Figure 6 As shown, in this embodiment, the rotation module 10 includes an induction motor box 101, a screw 102, a bearing 103, a guide block 104 and a limit plate 105. The front end of the induction motor box 101 is provided with a screw 102, and bearings 103 are provided on the front and rear sides of the outer end of the screw 102. The middle part of the bearing 103 is clamped and installed with a guide block 104, and a limit plate 105 is provided at the rear and lower part of the outer end of the guide block 104; the emergency protection module 11 includes a column 111, a cross bar 112, an insulating support rod 113, an octagonal screw 114 and a slider 115. Cross bars 112 are provided on the upper left and right sides of the outer end of the column 111, and insulating support rods 113 are provided on the front and rear sides of the outer end of the cross bar 112. The contact end of the cross bar 112 and the column 111 is provided with an octagonal screw 114, and the lower end of the column 111 is provided with a slider 115.

[0034] The induction motor box 101 is internally installed with a servo motor, a signal processing circuit, a control circuit and a drive circuit, and the driving end of the servo motor and the screw 102 are spliced together to form an integrated structure. Two guide blocks 104 are symmetrically distributed on the left and right sides of the outer end of the screw 102, and bearings 103 are provided on the front and rear sides of the contact end of the guide block 104 and the screw 102. The lower end of the guide block 104 passes through the fixed guide rail 4 and extends to the horizontal groove 303 opened at the upper end of the mounting base 3. There are two limit plates 105 symmetrically distributed in front and back. The limit plate 1 The contact end of 05 and the guide block 104 is reinforced by screws, and the front side of the lower end of the limit plate 105 extends to the slots opened on the front and rear sides of the outer end of the mounting base 3; the contact end of the column 111 and the screw rod 102 is threadedly connected, and the column 111 and the cross bar 112 are threadedly connected together by an octagonal screw 114. There are two cross bars 112 symmetrically distributed on the left and right, and the overall shape of the cross bar 112 is an inverted L-shape. The insulating support rods 113 are symmetrically distributed front and back with the outer end of the cross bar 112, and the slider 115 is fixed to the column 111 by the bottom mounting screws.

[0035] At the beginning of work, the rotating module 10 is arranged to rotate and drive the emergency protection module 11 to move forward and backward in the longitudinal groove 302 opened on the inner side of the upper end of the mounting base 3 and the fixed guide rail 4, and a T-shaped blocking structure composed of the column 111, the cross bar 112 and the insulating support rod 113 in the emergency protection module 11 is located in the area between the mechanical relay 6 and the AC contactor 7. When the AC contactor 7 controls the high-temperature circuit breaker of the machine through the five-core terminal block 9 and fails to cut off the power, the short-circuit fault sensor 13 will transmit the fault signal to the rotating module 10, and the inductive circuit breaker 13 will stop the emergency protection module 11 from moving forward and backward. The servo motor installed inside the chassis 101 drives the screw 102 to rotate, and the screw 102 and the column 111 in the emergency protection module 11 are installed in a spiral sleeve manner, which will push the slider 115 at the lower end of the column 111 to move backward along the longitudinal groove 302, allowing the insulating support rods 113 installed on the left and right cross bars 112 to contact the mechanical relay 6 and push it backward, so that the mechanical relay 6 and the AC contactor 7 are separated and powered off from the mechanical structure, thereby ensuring mechanical power off when the high-temperature circuit breaker fails and cannot be powered off, which can significantly improve the safety and reliability of the temperature control system.

[0036] The electrical components mentioned in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that performs control such as a computer.

[0037] The working principle of the technical solution provided by the present invention is as follows: the control signal is converted into a high-voltage signal through the set mechanical relay 6, and then the voltage signal amplifier 12 amplifies the signal and transmits it to the AC contactor 7, thereby controlling the AC contactor 7 to turn on the work, and the AC contactor 7 controls the high-temperature circuit breaker of the machine through the five-core terminal block 9, changes the working state of each heating rod and heating plate, and avoids the melting of indium caused by continuous heating; at the same time, the AC contactor 7 is connected to the leakage protector 8 to prevent the leakage phenomenon that may be generated when the load is high voltage, avoids safety accidents caused by leakage, ensures the safety and reliability of the entire operation process, effectively avoids the melting of indium caused by continuous heating, and at the same time ensures the safety of the operation process, and improves the operating efficiency and reliability of the semiconductor test machine; secondly, the rotating module 10 is set, which can rotate and drive the emergency protection module 11 to move forward and backward in the longitudinal groove 302 opened on the inner side of the upper end of the mounting base 3 and the fixed guide rail 4, and the emergency protection A T-shaped blocking structure composed of the column 111, cross bar 112 and insulating support rod 113 in the protection module 11 is located in the area between the mechanical relay 6 and the AC contactor 7. When the AC contactor 7 controls the high-temperature circuit breaker of the machine through the five-core terminal block 9 and fails to cut off the power, the short-circuit fault sensor 13 will transmit the fault signal to the rotation module 10, and the servo motor installed inside the induction motor box 101 drives the screw 102 to rotate. The screw 102 and the column 111 in the emergency protection module 11 are installed in a spiral sleeve manner, which will push the slider 115 at the lower end of the column 111 to move backward along the longitudinal groove 302, allowing the insulating support rods 113 installed on the left and right cross bars 112 to contact the mechanical relay 6 and push it backward, so that the mechanical relay 6 and the AC contactor 7 are separated and powered off from the mechanical structure, thereby ensuring mechanical power off when the high-temperature circuit breaker fails and cannot cut off the power, which can significantly improve the safety and reliability of the temperature control system.

[0038] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

[0040] Finally, it should be noted that the above is only 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 can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A temperature-controlled power-off device for preventing high-temperature molten indium, characterized in that: The invention comprises a fixed sheet metal (1), wherein the upper end of the fixed sheet metal (1) is provided with a protective cover (2), a mounting base (3) is provided below the inner side of the protective cover (2), the upper end of the mounting base (3) is provided with a fixed guide rail (4), the inner side of the upper end of the fixed guide rail (4) is provided with a movable guide rail (5), the front side of the upper ends of the fixed guide rail (4) and the movable guide rail (5) is provided with a mechanical relay (6), the rear side of the mechanical relay (6) is connected to an AC contactor (7), the rear side of the AC contactor (7) is connected to a leakage protector (8), the rear side of the leakage protector (8) is connected to a five-core terminal block (9), a rotating module (10) is provided in the middle of the rear side of the mounting base (3), an emergency protection module (11) is provided at the front end of the rotating module (10), a voltage signal amplifier (12) is provided on the left side of the outer end of the mechanical relay (6), and a short circuit fault sensor (13) is provided in the middle below the AC contactor (7).

2. The temperature-controlled power-off device for preventing high-temperature molten indium according to claim 1, characterized in that: The mounting base (3) comprises a convex plate (301), a longitudinal groove (302), a transverse groove (303), a chamfered groove (304) and an insertion rod (305); the longitudinal groove (302) is provided in the middle of the upper end of the convex plate (301); transverse grooves (303) are provided on the front and rear sides of the longitudinal groove (302); chamfered grooves (304) are provided on the front and rear sides of the upper end of the convex plate (301); and the insertion rod (305) is provided inside the longitudinal groove (302).

3. The temperature-controlled power-off device for preventing high-temperature molten indium according to claim 1, characterized in that: The movable guide rail (5) comprises a left rail (501), a right rail (502), a clamping block (503), a through hole (504) and a connecting screw (505). The left side of the left rail (501) is provided with a right rail (502). The front and rear sides of the lower ends of the left rail (501) and the right rail (502) are both provided with clamping blocks (503). The middle of the clamping block (503) is provided with a through hole (504). The front and rear sides of the upper ends of the left rail (501) and the right rail (502) are both provided with connecting screws (505).

4. The temperature-controlled power-off device for preventing high-temperature molten indium according to claim 1, characterized in that: The rotating module (10) comprises an induction motor box (101), a screw (102), a bearing (103), a guide block (104) and a limit plate (105). The front end of the induction motor box (101) is provided with a screw (102), the front and rear sides of the outer end of the screw (102) are provided with bearings (103), the middle part of the bearing (103) is clamped and mounted with a guide block (104), and the rear lower part of the outer end of the guide block (104) is provided with a limit plate (105).

5. The temperature-controlled power-off device for preventing high-temperature molten indium according to claim 1, characterized in that: The emergency protection module (11) comprises a column (111), a cross bar (112), an insulating support bar (113), an octagonal screw (114) and a slider (115), wherein cross bars (112) are provided above the left and right sides of the outer end of the column (111), insulating support bars (113) are provided on the front and rear sides of the outer end of the cross bar (112), the contact end of the cross bar (112) and the column (111) is provided with an octagonal screw (114), and the lower end of the column (111) is provided with a slider (115).

6. The temperature-controlled power-off device for preventing high-temperature molten indium according to claim 1, characterized in that: The fixed sheet metal (1) and the protective cover (2) are assembled into an integrated structure by fixing screws. A semicircular line hole is provided at the contact position between the lower end of the protective cover (2) and the fixed sheet metal (1). The lower end of the mounting base (3) and the upper end of the fixed sheet metal (1) are fitted together and reinforced by fixing screws on the left and right sides. The diameter of the lower end of the fixed guide rail (4) is consistent with the diameter of the upper end of the mounting base (3). A through slot is provided on the inner side of the upper end of the fixed guide rail (4), and the angle of the through slot is consistent with the angle of the slot provided on the upper end of the mounting base (3).

7. The temperature-controlled power-off device for preventing high-temperature molten indium according to claim 1, characterized in that: The lower end of the movable guide rail (5) passes through the inner side of the fixed guide rail (4) and extends to the inner side of the mounting base (3). The mechanical relay (6), the AC contactor (7), the leakage protector (8) and the five-core terminal block (9) are electrically connected to each other, and the lower ends of the four are all provided with a clamping base. The mechanical relay (6) and the voltage signal amplifier (12) are electrically connected to each other. The power input end of the short-circuit fault sensor (13) is electrically connected to the power output end of the mechanical relay (6), and the power output end of the short-circuit fault sensor (13) is electrically connected to the power input end of the AC contactor (7).

8. The temperature-controlled power-off device for preventing high-temperature molten indium according to claim 2, characterized in that: The four corners of the upper end of the convex plate (301) are provided with splicing screw holes, the inner side of the lower end of the convex plate (301) is a rectangular hollow structure, and the front and rear sides of the outer end of the convex plate (301) are provided with embedded grooves, and the transverse length of the embedded grooves is equal to the transverse length of the transverse grooves (303) and the chamfered grooves (304), and the transverse grooves (303) are symmetrically distributed.

9. The temperature-controlled power-off device for preventing high-temperature molten indium according to claim 3, characterized in that: The installation angles of the left rail (501) and the right rail (502) are exactly opposite, and a card slot is provided at the upper ends of the equal sides of the left rail (501) and the right rail (502), four card blocks (503) are symmetrically distributed, and four connecting screws (505) are symmetrically distributed, and the lower ends of the four connecting screws (505) all pass through the inner sides of the left rail (501) and the right rail (502) and extend to the inner sides of the card blocks (503).

10. The temperature-controlled power-off device for preventing high-temperature molten indium according to claim 4, characterized in that: A servo motor, a signal processing circuit, a control circuit, and a drive circuit are installed inside the induction motor box (101), and the transmission end of the servo motor and the screw (102) are spliced together to form an integrated structure. The front end of the screw (102) passes through the inside of the bearing (103) and the guide block (104) and extends to the rear side. The guide block (104) and the limit plate (105) are both symmetrically distributed in two, and the contact end of the limit plate (105) and the guide block (104) is reinforced by a screw.

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