Resistance adjusting device for surface-mounted ceramic PTC (Positive Temperature Coefficient) thermistor and use method thereof

Abstract

The invention relates to the technical field of heat-sensitive material processing, in particular to a patch type ceramic PTC thermistor resistance adjusting device and a using method thereof.The patch type ceramic PTC thermistor resistance adjusting device comprises a workbench, a liquid storage tank and a muffle furnace are arranged at the top of the workbench, and a liquid guide assembly is arranged at the top of the liquid storage tank and the top of the muffle furnace and comprises a liquid guide shell; the liquid guide shell is fixedly installed on the top of the liquid storage tank and the top of the muffle furnace, two fixing plates are symmetrically arranged in the liquid guide shell, a plurality of touch blocks are fixedly arranged on the corresponding faces of the two fixing plates, and a support is fixedly installed on the rear side of the top of the workbench. The device has the advantages that by arranging the liquid guide assembly and the touch wheel, when the hoisting tool moves towards the liquid storage tank or the muffle furnace, the rotating shaft can drive the hoisting tool to be switched back and forth between clockwise rotation and anticlockwise rotation, so that redundant liquid on a heat-sensitive material is thrown out, and then the thrown-out liquid can be guided into the liquid storage tank by utilizing the inclined plane; and the processing efficiency of the heat-sensitive material is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of heat-sensitive material processing, in particular to a chip-type ceramic PTC thermistor resistance adjustment device and a use method thereof. Background Art

[0002] SMD ceramic PTC thermistor is a thermistor commonly used for temperature control and overcurrent protection. Its characteristic is that within a certain temperature range, the resistance value changes rapidly. This characteristic makes it possible to use it in circuits to achieve temperature-sensitive control. PTC is the abbreviation of positive temperature coefficient, which means that as the temperature increases, the resistance value increases.

[0003] In terms of resistance adjustment, the SMD ceramic PTC thermistor can adjust the resistance of the circuit by adjusting the operating temperature point. This makes it flexible in different application scenarios, such as preventing overheating and current limiting in electronic devices.

[0004] A thermistor resistance adjustment device and a resistance adjustment method thereof are disclosed in Chinese patent HYPERLINK "https: / / www.ip.top / patentDetail?q=64677cf5bce1d11a841c28de" \o "Publication (Announcement) No.: CN116130186A" \t "https: / / www.ip.top / _blank" CN116130186A (Announcement No.), the thermistor resistance adjustment device and the resistance adjustment method thereof, the device comprises a skid-mounted base, on which a liquid tank and a muffle furnace are symmetrically arranged along its length direction; further comprising a lifting tool, which is arranged under a top cover; a transfer mechanism is arranged between the top cover and the skid-mounted base, for transferring the top cover and the lifting tool under the top cover from the liquid tank to the muffle furnace. The set transfer mechanism can realize the automatic transfer of the hanging tool under the top cover from the liquid tank to the muffle furnace, and always keep the hanging tool vertical during the whole transfer process; before immersion, the reagent liquid in the liquid tank can be stirred in advance with the help of the cooperation of the ball and the spiral track to prevent the reagent liquid from settling and stratification; after the immersion is completed, the reverse cooperation of the ball and the spiral track can drive the hanging tool to rotate, and use centrifugal force to throw out the excess reagent liquid adhered to the hanging tool and the heat-sensitive material on it, thereby improving the drying rate.

[0005] However, compared with the existing technologies in related fields, when the lifting tool is moved from the liquid tank to the muffle furnace, it needs to remain still in the air to throw out the excess liquid. Therefore, this working method wastes a certain amount of time and has low processing efficiency. Summary of the invention

[0006] The object of the present invention is to solve at least one of the technical drawbacks.

[0007] The purpose of the present invention is to overcome the shortcomings of the prior art, solve the problems mentioned in the background technology, and provide a chip-type ceramic PTC thermistor resistance adjustment device.

[0008] The object of the present invention is achieved by the following technical scheme: a patch type ceramic PTC thermistor resistance adjustment device, comprising a workbench, a liquid storage tank and a muffle furnace are arranged on the top of the workbench, and a liquid guide component is arranged on the top of the liquid storage tank and the muffle furnace; The liquid guide assembly includes a liquid guide shell, which is fixedly installed on the top of the liquid storage tank and the muffle furnace. Two fixed plates are symmetrically arranged inside the liquid guide shell, and a plurality of touch blocks are fixedly arranged on the corresponding sides of the two fixed plates. A bracket is fixedly installed on the rear side of the top of the workbench, and a hydraulic cylinder is provided on the side of the bracket close to the liquid storage tank for horizontal sliding. A driving assembly for controlling the reciprocating sliding of the hydraulic cylinder is provided on the bracket. A top cover is fixedly installed on the output end of the hydraulic cylinder, and a rotating shaft is rotatably connected to the center of the bottom of the top cover. A trigger wheel that cooperates with the trigger block is fixedly provided at the bottom of the rotating shaft, and a lifting tool is provided on the outer surface of the rotating shaft.

[0009] Preferably, the lifting tool comprises a disc, which is fixedly mounted on the outer surface of the rotating shaft, and a plurality of elastic telescopic rods are fixedly provided at the bottom of the disc, and brackets are fixedly provided at the bottom ends of the plurality of elastic telescopic rods.

[0010] By adopting the above technical solution, the specific structure and connection relationship of the lifting tool are introduced.

[0011] Preferably, both sides of the interior of the liquid guiding housing are inclined surfaces, and an operation port is provided in the middle of the front side of the liquid guiding housing.

[0012] By adopting the above technical solution, the ejected liquid can be guided to the inside of the liquid storage tank or the muffle furnace by utilizing the inclined surface.

[0013] Preferably, the trigger block is a rack, the multiple trigger blocks on the two fixed plates are staggered, and the trigger wheel is a gear.

[0014] By adopting the above technical solution, the contact between the gear and the rack can be used to make the rotating shaft rotate, and then the staggered trigger blocks can be used to cooperate with the trigger wheel when the trigger wheel passes between the two fixed plates, causing the rotating shaft to switch back and forth between clockwise rotation and counterclockwise rotation.

[0015] Preferably, the cross sections of the two fixing plates are both triangular.

[0016] By adopting the above technical solution and utilizing the triangular fixing plate, it is possible to prevent the liquid from adhering to the top of the fixing plate for a long time.

[0017] Preferably, a rotation hole is opened at the center of the bottom of the top cover, and the rotating shaft is connected to the rotation hole through a bearing.

[0018] By adopting the above technical solution and utilizing the above bearing, the friction force during the rotation of the shaft can be reduced and the stability of the rotation of the shaft can be improved.

[0019] Preferably, the drive assembly includes a motor, which is fixedly mounted on the side of the bracket, a screw is fixedly mounted on the output end of the motor, a slider is threadedly connected to the outer surface of the screw, a hydraulic cylinder is fixedly mounted on the bottom of the slider, and a slide groove is opened at the position of the bracket corresponding to the slider.

[0020] By adopting the above technical solution, the specific structure and connection relationship of the drive component are introduced.

[0021] A method for using a surface-mount ceramic PTC thermistor resistance adjustment device comprises the following steps: a. When in use, the motor controls the screw to rotate, and then the slider can slide back and forth horizontally inside the slide slot, thereby using the slider to drive the hydraulic cylinder to move to one side of the operating port; b. by placing the heat-sensitive materials into a plurality of brackets in sequence; c. After placement, the motor controls the screw to rotate, and then the slider can slide back and forth in the slide slot, so that the slider drives the hydraulic cylinder to move to one side of the liquid storage tank. At this time, the hydraulic cylinder controls the top cover to move downward, so that the lifting tool with the heat-sensitive material is immersed in the liquid storage tank, and then it is left to stand for a period of time; d. When the time is up, the top cover is first controlled by the hydraulic cylinder to move upward, and then the motor controls the screw to rotate, and then the slider can slide back and forth horizontally inside the slide slot, so that the slider drives the hydraulic cylinder to move to one side of the muffle furnace; e. When the trigger wheel passes between the two fixed plates, the staggered trigger blocks will cooperate with the trigger wheel to cause the rotating shaft to switch back and forth between clockwise and counterclockwise rotation, thereby driving the lifting tool to rotate through the rotating shaft to throw out the excess liquid on the heat-sensitive material. At the same time, the inclined surface can be used to guide the thrown liquid into the liquid storage tank; f. When the hydraulic cylinder corresponds to the muffle furnace, the top cover is controlled by the hydraulic cylinder to move downward, so that the lifting tool with the heat-sensitive material is immersed in the muffle furnace, and then left to stand for a period of time; g. When the time is up, the top cover is first controlled by the hydraulic cylinder to move upward, and then the motor controls the screw to rotate, and then the slider can slide back and forth horizontally inside the slide slot, so that the slider drives the hydraulic cylinder to move to one side of the operation port; h. When the trigger wheel passes between the two fixed plates, the staggered trigger blocks will cooperate with the trigger wheel, causing the rotating shaft to switch back and forth between clockwise and counterclockwise rotation, thereby driving the hanging tool to rotate through the rotating shaft to throw out the excess liquid on the heat-sensitive material. At the same time, the inclined surface can be used to guide the thrown liquid into the muffle furnace.

[0022] Compared with the prior art, the present invention has the following advantages: The chip-type ceramic PTC thermistor resistance adjustment device and the use method thereof are provided with a liquid guiding component and a trigger wheel. When the lifting tool moves toward the liquid storage tank or the muffle furnace, the rotating shaft can drive the lifting tool to switch back and forth between clockwise rotation and counterclockwise rotation, thereby throwing out the excess liquid on the thermosensitive material, and then using the inclined surface to guide the thrown-out liquid into the liquid storage tank, effectively improving the processing efficiency of the thermosensitive material. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 It is a schematic diagram of the structure when the lifting tool of the present invention is immersed in the liquid storage tank; Figure 2 It is a schematic diagram of the structure of the lifting tool of the present invention when it is taken out of the liquid storage tank; Figure 3 It is a structural schematic diagram of the hoisting tool of the present invention when it reaches the operation port; Figure 4 It is a schematic diagram of the structure when the lifting tool of the present invention is immersed in the muffle furnace; Figure 5 It is a schematic diagram of the structure of the driving assembly of the present invention; Figure 6 It is a structural schematic diagram of the lifting tool of the present invention; Figure 7 This is a schematic structural diagram of the liquid-conducting housing of the present invention from a first viewing angle; Figure 8 Schematic diagram of the structure of the liquid-conducting shell of the present invention from a second viewing angle.

[0025] In the figure: 1. workbench; 2. liquid storage tank; 3. muffle furnace; 4. liquid guide assembly; 401. liquid guide shell; 4011. operation port; 402. fixing plate; 403. trigger block; 5. bracket; 501. slide; 6. hydraulic cylinder; 7. drive assembly; 701. motor; 702. screw; 703. slider; 8. top cover; 9. rotating shaft; 901. trigger wheel; 10. lifting tool; 1001. disc; 1002. elastic telescopic rod; 1003. bracket. DETAILED DESCRIPTION

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0028] Additional aspects and advantages of the present invention will be further given in the following description in conjunction with the accompanying drawings, and in part will become apparent from the following description, or may be learned through practice of the present invention.

[0029] like Figure 1-8 As shown, a chip-type ceramic PTC thermistor resistance adjustment device comprises a workbench 1, a liquid storage tank 2 and a muffle furnace 3 are arranged on the top of the workbench 1, and a liquid guide component 4 is arranged on the top of the liquid storage tank 2 and the muffle furnace 3.

[0030] like Figure 7 and Figure 8As shown, the liquid guiding component 4 includes a liquid guiding shell 401, which is fixedly installed on the top of the liquid storage tank 2 and the muffle furnace 3. Both sides of the interior of the liquid guiding shell 401 are inclined surfaces. The inclined surfaces can be used to guide the ejected liquid to the inside of the liquid storage tank 2 or the muffle furnace 3. An operation port 4011 is opened in the middle of the front side of the liquid guiding shell 401. The operation port 4011 can facilitate the staff to place or remove heat-sensitive materials. Two fixed plates 402 are symmetrically arranged inside the liquid guiding shell 401. The cross-sections of the two fixed plates 402 are both triangular. The triangular fixed plates 402 can be used to prevent the liquid from adhering to the top of the fixed plates 402 for a long time. A plurality of trigger blocks 403 are fixedly arranged on the corresponding sides of the two fixed plates 402.

[0031] like Figure 3 , Figure 5 , Figure 6 and Figure 7 As shown, a bracket 5 is fixedly installed on the rear side of the top of the workbench 1, and a hydraulic cylinder 6 is horizontally slidably provided on one side of the bracket 5 close to the liquid storage tank 2. A driving component 7 for controlling the reciprocating sliding of the hydraulic cylinder 6 is provided on the bracket 5. A top cover 8 is fixedly installed on the output end of the hydraulic cylinder 6. A rotating shaft 9 is rotatably connected to the center of the bottom of the top cover 8. A rotating hole is opened at the center of the bottom of the top cover 8. The rotating shaft 9 is matched with the rotating hole through a bearing. By using the above-mentioned bearing, the friction force of the rotating shaft 9 during rotation can be reduced, and the stability of the rotating shaft 9 during rotation can be improved. A contact block 403 is fixedly provided at the bottom end of the rotating shaft 9. The cooperating trigger wheel 901, the trigger block 403 is a rack, and the multiple trigger blocks 403 on the two fixed plates 402 are staggered. The trigger wheel 901 is a gear. The contact between the gear and the rack can make the rotating shaft 9 rotate, and then the staggered trigger blocks 403 (rack) can be used to make the trigger wheel 901 (gear) pass between the two fixed plates 402. The staggered trigger blocks 403 (rack) will cooperate with the trigger wheel 901 (gear), causing the rotating shaft 9 to switch back and forth between clockwise rotation and counterclockwise rotation. The outer surface of the rotating shaft 9 is provided with a lifting tool 10.

[0032] like Figure 6 As shown, the lifting tool 10 includes a disc 1001, which is fixedly mounted on the outer surface of the rotating shaft 9. A plurality of elastic telescopic rods 1002 are fixedly provided at the bottom of the disc 1001, and a bracket 1003 is fixedly provided at the bottom ends of the plurality of elastic telescopic rods 1002. The specific structure and connection relationship of the lifting tool 10 are introduced, and the lifting tool 10 is a well-known technology in the technical field, so its detailed structure and working principle are not described in detail.

[0033] like Figure 4 and Figure 5As shown, the drive assembly 7 includes a motor 701, which is fixedly mounted on the side of the bracket 5, a screw 702 is fixedly mounted on the output end of the motor 701, a slider 703 is threadedly connected to the outer surface of the screw 702, and the hydraulic cylinder 6 is fixedly mounted on the bottom of the slider 703. The bracket 5 is provided with a slide groove 501 at the position corresponding to the slider 703. The specific structure and connection relationship of the drive assembly 7 are introduced, and the drive assembly 7 is a well-known technology in this technical field, so its detailed structure and working principle are not described in detail. By using the drive assembly 7, when the motor 701 controls the screw 702 to rotate, the slider 703 can slide back and forth horizontally inside the slide groove 501, so that the slider 703 can drive the hydraulic cylinder 6 to move.

[0034] A method for using a chip-type ceramic PTC thermistor resistance adjustment device is as follows: S1. When in use, the motor 701 controls the screw rod 702 to rotate, and then the slider 703 can slide reciprocatingly inside the slide groove 501, so that the slider 703 drives the hydraulic cylinder 6 to move to one side of the operating port 4011; S2, placing the heat-sensitive materials into the multiple brackets 1003 in sequence; S3. After placement is completed, the motor 701 controls the screw rod 702 to rotate, and then the slider 703 can slide back and forth in the slide groove 501, so that the slider 703 drives the hydraulic cylinder 6 to move to one side of the liquid storage tank 2. At this time, the hydraulic cylinder 6 controls the top cover 8 to move downward, so that the lifting tool 10 with the heat-sensitive material is immersed in the liquid storage tank 2, and then it is left to stand for a period of time; S4, when the time is up, the top cover 8 is first controlled by the hydraulic cylinder 6 to move upward, and then the screw 702 is controlled to rotate by the motor 701, and then the slider 703 can slide reciprocatingly inside the slide groove 501, so that the slider 703 drives the hydraulic cylinder 6 to move to one side of the muffle furnace 3; S5. When the trigger wheel 901 passes between the two fixed plates 402, the staggered trigger blocks 403 cooperate with the trigger wheel 901 to cause the rotating shaft 9 to switch back and forth between clockwise rotation and counterclockwise rotation, thereby driving the hanging tool 10 to rotate through the rotating shaft 9 to throw out the excess liquid on the heat-sensitive material. At the same time, the tilted surface can be used to guide the thrown liquid into the liquid storage tank 2; S6, when the hydraulic cylinder 6 corresponds to the muffle furnace 3, the top cover 8 is controlled by the hydraulic cylinder 6 to move downward, so that the lifting tool 10 with the heat-sensitive material is immersed in the muffle furnace 3, and then left to stand for a period of time; S7, when the time is up, the top cover 8 is first controlled by the hydraulic cylinder 6 to move upward, and then the screw 702 is controlled by the motor 701 to rotate, and then the slider 703 can slide reciprocatingly inside the slide groove 501, so that the slider 703 drives the hydraulic cylinder 6 to move to one side of the operation port 4011; S8. When the trigger wheel 901 passes between the two fixed plates 402, the staggered trigger blocks 403 will cooperate with the trigger wheel 901, causing the rotating shaft 9 to switch back and forth between clockwise rotation and counterclockwise rotation, thereby driving the hanging tool 10 to rotate through the rotating shaft 9 to throw out the excess liquid on the heat-sensitive material. At the same time, the inclined surface can be used to guide the thrown liquid into the muffle furnace 3.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A chip-type ceramic PTC thermistor resistance adjustment device, characterized in that: It comprises a workbench, a liquid storage tank and a muffle furnace are arranged on the top of the workbench, and a liquid guide assembly is arranged on the top of the liquid storage tank and the muffle furnace; The liquid guide assembly comprises a liquid guide shell, which is fixedly mounted on the top of the liquid storage tank and the muffle furnace, and two fixed plates are symmetrically arranged inside the liquid guide shell, and a plurality of trigger blocks are fixedly arranged on corresponding sides of the two fixed plates; A bracket is fixedly installed on the rear side of the top of the workbench, and a hydraulic cylinder is provided on the side of the bracket close to the liquid storage tank for transverse sliding. A driving assembly for controlling the reciprocating sliding of the hydraulic cylinder is provided on the bracket, and a top cover is fixedly installed on the output end of the hydraulic cylinder. A rotating shaft is rotatably connected to the center of the bottom of the top cover, and a trigger wheel matching the trigger block is fixedly provided at the bottom end of the rotating shaft, and a lifting tool is provided on the outer surface of the rotating shaft.

2. The chip-type ceramic PTC thermistor resistance adjustment device according to claim 1, characterized in that: The lifting tool comprises a disc, which is fixedly mounted on the outer surface of the rotating shaft. A plurality of elastic telescopic rods are fixedly arranged at the bottom of the disc, and brackets are fixedly arranged at the bottom ends of the plurality of elastic telescopic rods.

3. The chip-type ceramic PTC thermistor resistance adjustment device according to claim 2, characterized in that: Both sides of the interior of the liquid guiding housing are inclined surfaces, and an operation port is opened in the middle of the front side of the liquid guiding housing.

4. The chip-type ceramic PTC thermistor resistance adjustment device according to claim 3, characterized in that: The trigger block is a rack, the multiple trigger blocks on the two fixed plates are staggered, and the trigger wheel is a gear.

5. The chip-type ceramic PTC thermistor resistance adjustment device according to claim 1, characterized in that: The cross sections of the two fixing plates are both triangular.

6. The chip-type ceramic PTC thermistor resistance adjustment device according to claim 1, characterized in that: A rotation hole is opened at the center of the bottom of the top cover, and the rotating shaft is matched and connected with the rotation hole through a bearing.

7. The chip-type ceramic PTC thermistor resistance adjustment device according to claim 4, characterized in that: The driving assembly includes a motor, which is fixedly mounted on the side of the bracket, a screw is fixedly mounted on the output end of the motor, a slider is threadedly connected to the outer surface of the screw, the hydraulic cylinder is fixedly mounted on the bottom of the slider, and a slide groove is provided on the bracket at a position corresponding to the slider.

8. The method for using the chip-type ceramic PTC thermistor resistance adjustment device according to claim 7, characterized in that: It includes the following steps: a. When in use, the motor controls the screw to rotate, and then the slider can slide back and forth horizontally inside the slide slot, thereby using the slider to drive the hydraulic cylinder to move to one side of the operating port; b. by placing the heat-sensitive materials into a plurality of brackets in sequence; c. After placement, the motor controls the screw to rotate, and then the slider can slide back and forth in the slide slot, so that the slider drives the hydraulic cylinder to move to one side of the liquid storage tank. At this time, the hydraulic cylinder controls the top cover to move downward, so that the lifting tool with the heat-sensitive material is immersed in the liquid storage tank, and then it is left to stand for a period of time; d. When the time is up, the top cover is first controlled by the hydraulic cylinder to move upward, and then the motor controls the screw to rotate, and then the slider can slide back and forth horizontally inside the slide slot, so that the slider drives the hydraulic cylinder to move to one side of the muffle furnace; e. When the trigger wheel passes between the two fixed plates, the staggered trigger blocks will cooperate with the trigger wheel to cause the rotating shaft to switch back and forth between clockwise and counterclockwise rotation, thereby driving the lifting tool to rotate through the rotating shaft to throw out the excess liquid on the heat-sensitive material. At the same time, the inclined surface can be used to guide the thrown liquid into the liquid storage tank; f. When the hydraulic cylinder corresponds to the muffle furnace, the top cover is controlled by the hydraulic cylinder to move downward, so that the lifting tool with the heat-sensitive material is immersed in the muffle furnace, and then left to stand for a period of time; g. When the time is up, the top cover is first controlled by the hydraulic cylinder to move upward, and then the motor controls the screw to rotate, and then the slider can slide back and forth horizontally inside the slide slot, so that the slider drives the hydraulic cylinder to move to one side of the operation port; h. When the trigger wheel passes between the two fixed plates, the staggered trigger blocks will cooperate with the trigger wheel, causing the rotating shaft to switch back and forth between clockwise and counterclockwise rotation, thereby driving the hanging tool to rotate through the rotating shaft to throw out the excess liquid on the heat-sensitive material. At the same time, the inclined surface can be used to guide the thrown liquid into the muffle furnace.

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