Dry-burning-resistant temperature sensor and manufacturing method thereof

Abstract

The invention provides an anti-dry-burning temperature sensor and a manufacturing method thereof, and relates to the technical field of temperature sensors, the anti-dry-burning temperature sensor comprises a thermistor, a fixed support and a mounting piece, pressure silica gel is arranged in the fixed support, a through groove is formed in the fixed support, the thermistor is connected with a wire, the thermistor and the wire are mounted in the through groove, and the mounting piece is connected with the thermistor. The pressure silica gel is contacted with the lower end of the thermistor, the upper end of the thermistor is contacted with a heat-conducting ceramic chip, a metal cover is adhered to the upper end of the heat-conducting ceramic chip, the fixed support is mounted in a mounting part, and the metal cover is matched with the mounting part. The thermistor and the wire are both installed in the through groove, installation can be directly carried out, the wire does not need to be sleeved with an insulating sleeve manually, the working efficiency is high, the cost is low, the insulating sleeve is omitted, and the phenomena of poor voltage resistance and electric leakage caused by the fact that the insulating sleeve is pressed through are avoided; and by arranging the pressure silica gel, the thermistor can be effectively attached to the metal cover, so that the thermal reaction is fast and the thermal reaction consistency is good.

Description

Technical Field

[0001] The present invention relates to the technical field of temperature sensors, and in particular to an anti-dry-burning temperature sensor and a manufacturing method thereof. Background Art

[0002] Temperature is a very critical physical quantity for controlling cooking in smart rice cookers. Smart rice cookers can monitor temperature and judge possible heating defects, and then promptly detect and deal with them to prevent sticking, and run according to the pre-set temperature to ensure the quality of cooking. To achieve this process, the temperature must be collected through the combination of thermistor temperature sensor and single-chip microcomputer. Then digital temperature conversion and output can be realized; the inner pot presses on the top of the sensor, the sensor will move downward, so that the top rod pushes open the short-circuit piece to heat the heating plate, the inner pot is removed, the sensor moves upward, the short-circuit piece leaves the top rod, the thermistor is short-circuited, the heating plate is not heated, and the anti-dry burning effect is achieved;

[0003] The existing temperature sensor device currently used in rice cookers / electric pressure cookers / electric cooking pots is composed of an axial glass-sealed thermistor and an insulating sleeve. Since the insulating sleeve is thermally insulated and there is a gap in the thermistor installed in the sleeve, the axial glass-sealed thermistor cannot be effectively installed close to the metal surface. Therefore, the current product has a slow thermal response and poor thermal response consistency;

[0004] In addition, since the axial glass-sealed thermistor and the axial bipolar wires and the connection points of the wires are all bare, workers are required to add insulating sleeves to the exposed parts, which results in poor work efficiency and high labor costs.

[0005] In addition, since the axial glass-sealed thermistor and the two axial bare electrode wires and wire connection terminals need to be manually covered with insulating sleeves, automated production is not possible. When the thermistor with the insulating sleeve is fixed in the metal cover using the thermistor and a metal fixing bracket, the insulating sleeve is easily pressed through, resulting in poor voltage resistance and leakage. Summary of the invention

[0006] The present invention provides an anti-dry-burning temperature sensor and a manufacturing method thereof to solve at least one of the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the present invention discloses an anti-dry burning temperature sensor, including a thermistor, a fixed support and a mounting piece, wherein pressure silicone is arranged in the fixed support, a through groove is opened on the fixed support, a wire is connected to the thermistor, the thermistor and the wire are installed in the through groove, the pressure silicone is in contact with the lower end of the thermistor, the upper end of the thermistor is in contact with a thermally conductive ceramic sheet, a metal cover is bonded to the upper end of the thermally conductive ceramic sheet, the fixed support is installed in the mounting piece, and the metal cover cooperates with the mounting piece.

[0008] Preferably, a short-circuit plate is connected to the thermistor, a short-circuit plate groove is provided on the fixed support, and the short-circuit plate cooperates with the short-circuit plate groove; an arc groove is provided on the thermal conductive ceramic plate, a positioning part is provided on the fixed support, and the arc groove corresponds to the positioning part.

[0009] Preferably, the mounting part includes a hardware base, a card meson is arranged inside the hardware base, a push rod is also arranged on the hardware base, a hardware outer cup is clamped on the hardware base, a spring is arranged around the side of the hardware outer cup, one end of the spring is in contact with the hardware base, and the other end of the spring is in contact with the metal cover, a bracket sleeve is arranged inside the hardware outer cup, and a fixed support is installed in the bracket sleeve.

[0010] Preferably, a method for manufacturing an anti-dry-burning temperature sensor is used to manufacture an anti-dry-burning temperature sensor as described above, comprising the following steps:

[0011] S1: Install the card meson in the hardware base, and then connect the hardware outer cup to the hardware base;

[0012] S2: Install the thermistor and the wire into the through slot on the fixed support, insert the short-circuit piece into the short-circuit piece slot, and use the pressure silicone to support the thermistor;

[0013] S3: Install the fixed support into the bracket jacket, install the bracket jacket into the hardware outer cup, and install the spring sleeve around the hardware outer cup;

[0014] S4: Apply glue to the thermally conductive ceramic sheet and bond it to the metal cover. Then, fit the thermally conductive ceramic sheet and the thermistor tightly together. After that, the metal cover and the metal outer cup are snapped together.

[0015] Preferably, in step S4, a coating mechanism is used to coat glue on the thermally conductive ceramic sheet, the coating mechanism includes a U-shaped plate, a storage tank is provided on the U-shaped plate, a liquid outlet funnel is fixedly provided inside the U-shaped plate, a connecting pipe is provided on the storage tank, and the other end of the connecting pipe is connected to the liquid outlet funnel.

[0016] Preferably, a mounting block is fixedly provided on the rear side of the liquid discharge funnel, a connecting rod is installed on the mounting block, a driving motor is fixedly provided on the upper end of the connecting rod, a front output end of the driving motor is fixedly connected to a rotating rod, a rotating disk is fixedly connected to the front side of the rotating rod, a circular hole is opened on the rear wall of the liquid discharge funnel, the rotating disk is rotatably connected in the circular hole, an extension rod is fixedly provided at an eccentric position at the front end of the rotating disk, a square frame is matched with the extension rod, a moving rod is fixedly provided at the lower end of the square frame, a moving plate is fixedly provided on the lower side of the moving rod, the moving plate is slidably connected to the inner wall of the liquid discharge funnel, and the connection position between the connecting tube and the liquid discharge funnel is located at the lower side of the moving plate.

[0017] Preferably, a left-right symmetrical gear rod is fixedly provided at the lower end of the movable plate, and a rotating shaft is rotatably connected to the left and right side walls of the liquid outlet funnel. A gear 1 is fixedly provided on the rotating shaft, and the gear 1 is meshedly connected to the gear rod. Blades are also fixedly provided on the rotating shaft.

[0018] Preferably, a left-right symmetrical pushing rod is fixedly provided on the upper end of the movable plate, and a U-shaped knocking rod is also slidably penetrated on the left and right side walls of the liquid outlet funnel, a reset spring is sleeved on the upper horizontal section of the U-shaped knocking rod, a pushing head is provided on the upper side of the pushing rod, the pushing rod cooperates with the pushing head, the pushing head is fixedly provided on the upper horizontal section of the U-shaped knocking rod, one end of the reset spring is fixedly connected to the pushing head, and the other end of the reset spring is fixedly connected to the inner wall of the liquid outlet funnel, a knocking head is fixedly provided on the lower horizontal section of the U-shaped knocking rod, openings are provided on the two side walls of the U-shaped plate, the lower horizontal section of the U-shaped knocking rod corresponds to the opening position, and an exhaust pipe inclined upward is provided on the liquid outlet funnel, and a valve is provided in the exhaust pipe.

[0019] Preferably, a sliding frame is also provided on the rear side wall of the liquid outlet funnel, a sliding block is fixedly provided on the sliding frame, the sliding block is slidably provided on the rear side wall of the liquid outlet funnel, a tooth plate is symmetrically fixedly provided on the upper side of the sliding frame, a half gear is fixedly provided on the rotating rod, the half gear is alternately meshed with the upper and lower tooth plates, a limit rod is fixedly provided at the lower end of the sliding frame, and a stop block is fixedly provided at the lower end of the limit rod.

[0020] Preferably, a hollow cylinder is fixedly provided on the left vertical section of the U-shaped plate, a slide plate is slidably provided in the hollow cylinder, an air push rod is fixedly provided on one end of the slide plate away from the left vertical section of the U-shaped plate, the air push rod slides and extends out of the hollow cylinder, the other end of the air push rod is fixedly connected to a matching plate, the matching plate is fixedly provided on the stop block, a push spring is also sleeved on the air push rod, one end of the push spring is fixedly connected to the slide plate, the other end of the push spring is fixedly connected to the inner wall of the hollow cylinder, an air pipe is connected to the hollow cylinder, the other end of the air pipe is connected to the liquid outlet funnel, and the penetration position of the air pipe and the liquid outlet funnel is located below the movable plate.

[0021] Compared with the prior art, the present invention provides an anti-dry-burning temperature sensor and a manufacturing method thereof. By installing the thermistor and the wire in a through groove, the installation can be directly carried out without manually using an insulating sleeve on the wire, and automated production can be carried out, with high work efficiency and low cost. Moreover, since the insulating sleeve is eliminated, the insulating sleeve will not be pressed through to cause poor voltage resistance and leakage. By eliminating the insulating sleeve and setting pressure silicone, the thermistor can be effectively and tightly mounted to the metal cover, so the thermal response is fast and the thermal response consistency is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is an explosion schematic diagram of the present invention;

[0024] Figure 2 It is a cross-sectional schematic diagram of the present invention;

[0025] Figure 3 It is a schematic diagram of the appearance of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the coating mechanism of the present invention;

[0027] Figure 5 For the present invention Figure 4 Rear view of

[0028] Figure 6 For the present invention Figure 4 A magnified image of point A;

[0029] Figure 7 For the present invention Figure 4 The enlarged view of point B;

[0030] Figure 8 For the present invention Figure 4 Enlarged view of point C;

[0031] Fig. 9 For the present invention Figure 5 The enlarged view of point D;

[0032] Fig.10 It is a schematic diagram of the connection between the knocking head and the knocking rod of the present invention.

[0033] In the figure: 1. Metal cover; 2. Thermal ceramic sheet; 3. Thermistor; 4. Short-circuit sheet; 5. Wire; 6. Positioning part; 7. Fixed support; 8. Through slot; 9. Short-circuit sheet slot; 10. Bracket jacket; 11. Spring; 12. Hardware outer cup; 13. Ejector rod; 14. Hardware base; 15. Card meson; 16. Pressure silicone; 17. Arc slot; 18. Storage tank; 19. Moving plate; 20. U-shaped knocking rod; 21. Blade; 22. Gear 1; 23. Conveyor belt; 24. Liquid discharge funnel; 25. air pipe; 26. rotating shaft; 27. gear rod; 28. U-shaped plate; 29. ​​connecting pipe; 30. limit rod; 31. block; 32. matching plate; 33. air push rod; 34. hollow cylinder; 35. slide plate; 36. push spring; 37. rotating disk; 38. frame; 39. extending rod; 40. moving rod; 41. pushing head; 42. pushing rod; 43. reset spring; 44. sliding frame; 45. gear plate; 46. rotating rod; 47. knocking head; 48. sliding block; 49. half gear. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 according to specific circumstances.

[0037] Example 1

[0038] An embodiment of the present invention provides an anti-dry-burning temperature sensor, such as Figure 1-3 As shown, it includes a thermistor 3, a fixed support 7 and a mounting piece, a pressure silicone 16 is arranged in the fixed support 7, a through groove 8 is opened on the fixed support 7, a wire 5 is connected to the thermistor 3, the thermistor 3 and the wire 5 are installed in the through groove 8, the pressure silicone 16 is in contact with the lower end of the thermistor 3, the upper end of the thermistor 3 is in contact with a thermally conductive ceramic sheet 2, the upper end of the thermally conductive ceramic sheet 2 is bonded with a metal cover 1, the fixed support 7 is installed in the mounting piece, and the metal cover 1 cooperates with the mounting piece.

[0039] The working principle and beneficial effects of the above technical solution are as follows: the thermistor 3 and the wire 5 are installed in the through groove 8 on the fixed support 7, the pressure silicone 16 is pressed against the lower end of the thermistor 3, and then the fixed support 7 is installed in the mounting part, the thermal conductive ceramic sheet 2 is abutted against the upper end of the thermistor 3, and the metal cover 1 is connected to the mounting part, thereby forming a temperature sensor; by installing the thermistor 3 and the wire 5 in the through groove 8, the installation can be carried out directly without manually using an insulating sleeve on the wire, and automated production can be carried out, with high work efficiency and low cost; and since the insulating sleeve is eliminated, the insulating sleeve will not be pressed through, resulting in poor voltage resistance and leakage; the insulating sleeve is eliminated, and by setting the pressure silicone 16, the thermistor 3 can be effectively and tightly mounted on the metal cover 1, so the thermal response is fast and the thermal response consistency is good.

[0040] Example 2

[0041] On the basis of the above-mentioned embodiment 1, Figure 1-3 As shown, a short-circuit plate 4 is also connected to the thermistor 3, a short-circuit plate groove 9 is provided on the fixed support 7, and the short-circuit plate 4 cooperates with the short-circuit plate groove 9; an arc groove 17 is provided on the thermal conductive ceramic plate 2, and a positioning portion 6 is provided on the fixed support 7, and the arc groove 17 corresponds to the positioning portion 6.

[0042] Among them, preferably, the mounting part includes a hardware base 14, a card meson 15 is arranged in the hardware base 14, a push rod 13 is also arranged on the hardware base 14, a hardware outer cup 12 is clamped on the hardware base 14, a spring 11 is arranged on the side of the hardware outer cup 12, one end of the spring 11 is in contact with the hardware base 14, and the other end of the spring 11 is in contact with the metal cover 1, a bracket sleeve 10 is arranged in the hardware outer cup 12, and a fixed support 7 is installed in the bracket sleeve 10.

[0043] The working principle and beneficial effects of the above technical solution are as follows: through the cooperation between the short-circuit plate 4 and the short-circuit plate groove 9, and the correspondence between the arc groove 17 and the positioning portion 6, the assembly of the thermistor 3 and the fixed support 7 can be quickly completed, and the installation is faster; and the arc groove 17 is provided on the thermal conductive ceramic plate 2, and the thermistor 3 is close to the arc groove 17, so that the thermistor 3 is heated over a wider area and faster; and the fixed support 7 is installed in the bracket jacket 10, and the bracket jacket 10 is installed in the hardware outer cup 12, and the spring 11 is sleeved on the side of the hardware outer cup 12, so that the assembly work of the temperature sensor can be quickly completed, the structure is simple, the use is convenient, and the practicability is strong.

[0044] Example 3

[0045] A method for manufacturing a dry-burning prevention temperature sensor, such as Figure 1-10 As shown, the method for manufacturing the anti-dry-burning temperature sensor as described above includes the following steps:

[0046] S1: Install the card meson 15 in the hardware base 14, and then snap the hardware outer cup 12 onto the hardware base 14;

[0047] S2: Install the thermistor 3 and the wire 5 into the through slot 8 on the fixed support 7, insert the short-circuit plate 4 into the short-circuit plate slot 9, and the pressure silicone 16 supports the thermistor 3;

[0048] S3: Install the fixed support 7 into the bracket jacket 10, install the bracket jacket 10 into the hardware outer cup 12, and sleeve the spring 11 around the side of the hardware outer cup 12;

[0049] S4: Apply glue to the thermally conductive ceramic sheet 2 and bond it to the metal cover 1 , then closely attach the thermally conductive ceramic sheet 2 to the thermistor 3 , and then snap the metal cover 1 to the metal outer cup 12 .

[0050] The working principle and beneficial effects of the above technical solution are as follows: the first step is to install the card meson 15 in the hardware base 14, and then snap the hardware outer cup 12 onto the hardware base 14; the second step is to install the thermistor 3 and the wire 5 into the through slot 8 on the fixed support 7, insert the short-circuit plate 4 into the short-circuit plate slot 9, and the pressure silicone 16 supports the thermistor 3; the third step is to install the fixed support 7 into the bracket jacket 10, install the bracket jacket 10 into the hardware outer cup 12, and sleeve the spring 11 around the hardware outer cup 12; the fourth step is to apply glue on the thermal conductive ceramic sheet 2 and bond it to the metal cover 1, and then the thermal conductive ceramic sheet 2 is tightly attached to the thermistor 3, and then the metal cover 1 is snapped onto the hardware outer cup 12;

[0051] Through the above steps, the assembly operation of the temperature sensor can be quickly completed, and the thermistor 3 and the wire 5 are both installed in the through groove 8, and can be directly installed without manually using an insulating sleeve on the wire. Automatic production can be carried out with high work efficiency.

[0052] Example 4

[0053] Based on the above embodiment 3, Figure 4-8 As shown, in step S4, a coating mechanism is used to apply glue to the thermally conductive ceramic sheet 2, and the coating mechanism includes a U-shaped plate 28, on which a storage tank 18 is provided, and a liquid outlet funnel 24 is fixedly provided inside the U-shaped plate 28, and a connecting pipe 29 is provided on the storage tank 18, and the other end of the connecting pipe 29 is connected to the liquid outlet funnel 24.

[0054] Among them, preferably, a mounting block is fixedly provided on the rear side of the liquid discharge funnel 24, a connecting rod is installed on the mounting block, a driving motor is fixedly provided on the upper end of the connecting rod, the front output end of the driving motor is fixedly connected to the rotating rod 46, the front side of the rotating rod 46 is fixedly connected to the rotating disk 37, a circular hole is opened on the rear side wall of the liquid discharge funnel 24, the rotating disk 37 is rotatably connected in the circular hole, an extension rod 39 is fixedly provided at an eccentric position at the front end of the rotating disk 37, a square frame 38 is cooperated with the extension rod 39, a moving rod 40 is fixedly provided at the lower end of the square frame 38, a moving plate 19 is fixedly provided on the lower side of the moving rod 40, the moving plate 19 is slidably connected to the inner wall of the liquid discharge funnel 24, and the connection position between the connecting tube 29 and the liquid discharge funnel 24 is located at the lower side of the moving plate 19.

[0055] A conveyor belt 23 is provided below the liquid outlet funnel 24 , and can convey the thermally conductive ceramic sheet 2 to be coated with glue to the bottom of the liquid outlet funnel 24 .

[0056] The working principle and beneficial effects of the above technical solution are as follows: glue liquid is stored in the storage tank 18, and the connecting pipe 29 transports the glue liquid in the storage tank 18 to the liquid outlet funnel 24, and the glue liquid is only located below the movable plate 19, and the driving motor is started, and the driving motor drives the rotating rod 46 to rotate, and the rotating rod 46 drives the rotating disk 37 to rotate, and the rotating disk 37 drives the extending rod 39 to revolve around the center point of the rotating disk 37, so that the square frame 38 moves up and down, and the square frame 38 drives the moving rod 40 to move up and down, and the moving rod 40 drives the moving plate 19 to move up and down. When the moving plate 19 descends, the glue liquid in the liquid outlet funnel 24 will be squeezed out, so that it falls onto the thermal conductive ceramic sheet 2; adopting the above method, the glue liquid extrusion operation can be completed quickly, the structure is simple, and it is convenient to use, which effectively improves the practicality of the device.

[0057] Example 5

[0058] On the basis of the above-mentioned embodiment 4, Figure 4-10As shown, a left-right symmetrical gear rod 27 is fixedly provided at the lower end of the movable plate 19, and a rotating shaft 26 is rotatably connected to the left and right side walls of the liquid outlet funnel 24. A gear 22 is fixedly provided on the rotating shaft 26, and the gear 22 is meshedly connected to the gear rod 27. A blade 21 is also fixedly provided on the rotating shaft 26.

[0059] Among them, preferably, a left-right symmetrical pushing rod 42 is fixedly provided on the upper end of the movable plate 19, and a U-shaped knocking rod 20 is also slidably penetrated on the left and right side walls of the liquid outlet funnel 24, a reset spring 43 is sleeved on the upper horizontal section of the U-shaped knocking rod 20, a pushing head 41 is provided on the upper side of the pushing rod 42, the pushing rod 42 cooperates with the pushing head 41, the pushing head 41 is fixedly provided on the upper horizontal section of the U-shaped knocking rod 20, one end of the reset spring 43 is fixedly connected to the pushing head 41, and the other end of the reset spring 43 is fixedly connected to the inner wall of the liquid outlet funnel 24, a knocking head 47 is fixedly provided on the lower horizontal section of the U-shaped knocking rod 20, and openings are provided on the two side walls of the U-shaped plate 28, and the lower horizontal section of the U-shaped knocking rod 20 corresponds to the opening position.

[0060] The liquid outlet funnel 24 is provided with an exhaust pipe inclined upward, and a valve is provided in the exhaust pipe so that only gas can pass through the exhaust pipe;

[0061] The working principle and beneficial effects of the above technical solution are as follows: when the movable plate 19 moves up and down, the movable plate 19 drives the gear 22 to rotate, the gear 22 drives the rotating shaft 26 to rotate, the rotating shaft 26 drives the blade 21 to rotate, and the blade 21 will stir the glue in the liquid outlet funnel 24, thereby reducing the possibility of the glue solidifying; at the same time, the up and down movement of the movable plate 19 will drive the push rod 42 to move up and down, and when the push rod 42 moves upward, it will push the push head 41 to move, and the push head 41 will drive the U-shaped knocking rod 20 to move. When the push rod 42 moves downward, the U-shaped knocking rod 20 is reset under the action of the reset spring 43, and the knocking head 47 will knock on the liquid outlet funnel 24, thereby exhausting the liquid outlet funnel 24, and the gas is discharged through the exhaust pipe, reducing the gas in the glue, which can effectively improve the bonding effect of the glue, and has strong practicality.

[0062] Example 6

[0063] On the basis of the above-mentioned embodiment 5, Figure 4-10 As shown, a sliding frame 44 is also provided on the rear side wall of the liquid outlet funnel 24, and a sliding block 48 is fixedly provided on the sliding frame 44. The sliding block 48 is slidably provided on the rear side wall of the liquid outlet funnel 24. A tooth plate 45 is symmetrically fixedly provided on the upper inner side of the sliding frame 44, and a half gear 49 is fixedly provided on the rotating rod 46. The half gear 49 is alternately meshed with the upper and lower tooth plates 45. A limit rod 30 is fixedly provided at the lower end of the sliding frame 44, and a stopper 31 is fixedly provided at the lower end of the limit rod 30.

[0064] Among them, preferably, a hollow cylinder 34 is fixedly provided on the left vertical section of the U-shaped plate 28, and a slide plate 35 is slidably provided in the hollow cylinder 34. An air pushing rod 33 is fixedly provided on one end of the slide plate 35 away from the left vertical section of the U-shaped plate 28, and the air pushing rod 33 slides and extends out of the hollow cylinder 34, and the other end of the air pushing rod 33 is fixedly connected to a matching plate 32, and the matching plate 32 is fixedly set on the stop block 31. A pushing spring 36 is also sleeved on the air pushing rod 33, and one end of the pushing spring 36 is fixedly connected to the slide plate 35, and the other end of the pushing spring 36 is fixedly connected to the inner wall of the hollow cylinder 34, and an air pipe 25 is connected to the hollow cylinder 34, and the other end of the air pipe 25 is connected to the liquid outlet funnel 24, and the penetration position of the air pipe 25 and the liquid outlet funnel 24 is located below the movable plate 19.

[0065] An air inlet hole is provided in the hollow cylinder 34, and a one-way valve is provided in both the air pipe 25 and the air inlet hole.

[0066] The working principle and beneficial effects of the above technical solution are as follows: after the driving motor is started, the rotating rod 46 starts to rotate, the rotating rod 46 drives the half gear 49 to rotate, and the half gear 49 is alternately meshed with the two tooth plates 45, so that the sliding frame 44 moves left and right, and the left and right movement of the sliding frame 44 drives the limit rod 30 to move left and right, and the limit rod 30 drives the stopper 31 to move left and right. When the moving plate 19 descends, the stopper 31 will leave the lower end of the liquid outlet funnel 24, and when the moving plate 19 rises, the stopper 31 just blocks the outlet end of the liquid outlet funnel 24; when the stopper 31 leaves the outlet end of the liquid outlet funnel 24, , the stopper 31 pushes the matching plate 32 to move, the matching plate 32 drives the air pushing rod 33 to move, the air pushing rod 33 drives the slide plate 35 to move, the slide plate 35 pushes the hollow cylinder 34 into the air pipe 25, and then enters the liquid outlet funnel 24, blows and stirs the glue liquid in the liquid outlet funnel 24, further reduces the possibility of the glue liquid solidifying, and at the same time, with the cooperation of the knocking head 47 and the exhaust pipe, the gas in the glue liquid can also be discharged more effectively; when the stopper 31 blocks the outlet end of the liquid outlet funnel 24, the slide plate 35 will be reset under the action of the push spring 36, so that the hollow cylinder 34 is re-inflated;

[0067] Through the above structure, under the action of a driving motor, the extrusion of the glue liquid, the mechanical stirring of the glue liquid, the gas stirring of the glue liquid are realized, and the exhaust effect is also achieved at the same time. The structure has a high degree of coordination and strong practicality.

[0068] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

Claims

1. A dry-burning prevention temperature sensor, characterized in that: The invention comprises a thermistor (3), a fixed support (7) and a mounting piece. The fixed support (7) is provided with a pressure silicone rubber (16). The fixed support (7) is provided with a through groove (8). The thermistor (3) is connected with a wire (5). The thermistor (3) and the wire (5) are mounted in the through groove (8). The pressure silicone rubber (16) is in contact with the lower end of the thermistor (3). The upper end of the thermistor (3) is in contact with a heat-conducting ceramic sheet (2). The upper end of the heat-conducting ceramic sheet (2) is bonded with a metal cover (1). The fixed support (7) is mounted in the mounting piece. The metal cover (1) matches the mounting piece.

2. The anti-dry-burning temperature sensor according to claim 1, characterized in that: A short-circuit plate (4) is also connected to the thermistor (3); a short-circuit plate groove (9) is provided on the fixed support (7); the short-circuit plate (4) matches the short-circuit plate groove (9); an arc-shaped groove (17) is provided on the thermal conductive ceramic plate (2); a positioning portion (6) is provided on the fixed support (7); the arc-shaped groove (17) corresponds to the positioning portion (6).

3. The anti-dry-burning temperature sensor according to claim 1, characterized in that: The mounting part comprises a hardware base (14), a card meson (15) is arranged in the hardware base (14), a push rod (13) is also arranged on the hardware base (14), a hardware outer cup (12) is clamped on the hardware base (14), a spring (11) is sleeved on the peripheral side of the hardware outer cup (12), one end of the spring (11) contacts the hardware base (14), and the other end of the spring (11) contacts the metal cover (1), a bracket outer sleeve (10) is arranged in the hardware outer cup (12), and a fixed support (7) is installed in the bracket outer sleeve (10).

4. A method for manufacturing an anti-dry-burning temperature sensor, used to manufacture an anti-dry-burning temperature sensor as claimed in any one of claims 1 to 3, characterized in that: The following steps are included: S1: Install the card meson (15) in the hardware base (14), and then snap the hardware outer cup (12) onto the hardware base (14); S2: Install the thermistor (3) and the wire (5) into the through groove (8) on the fixed support (7), insert the short-circuit plate (4) into the short-circuit plate groove (9), and use the pressure silicone rubber (16) to support the thermistor (3); S3: Install the fixed support (7) into the bracket outer sleeve (10), install the bracket outer sleeve (10) into the hardware outer cup (12), and sleeve the spring (11) around the side of the hardware outer cup (12); S4: Apply glue to the thermally conductive ceramic sheet (2) and bond it to the metal cover (1), then tightly attach the thermally conductive ceramic sheet (2) to the thermistor (3), and then snap the metal cover (1) to the metal outer cup (12).

5. The method for manufacturing a dry-burning prevention temperature sensor according to claim 4, characterized in that: In step S4, glue is applied to the thermally conductive ceramic sheet (2) using a coating mechanism, the coating mechanism comprising a U-shaped plate (28), a storage tank (18) being arranged on the U-shaped plate (28), a liquid outlet funnel (24) being fixedly arranged inside the U-shaped plate (28), a connecting pipe (29) being arranged on the storage tank (18), and the other end of the connecting pipe (29) being connected to the liquid outlet funnel (24).

6. The method for manufacturing a dry-burning prevention temperature sensor according to claim 5, characterized in that: A mounting block is fixedly arranged at the rear side of the liquid discharge funnel (24), a connecting rod is installed on the mounting block, a driving motor is fixedly arranged at the upper end of the connecting rod, a front output end of the driving motor is fixedly connected to a rotating rod (46), a rotating disk (37) is fixedly connected to the front side of the rotating rod (46), a circular hole is opened on the rear side wall of the liquid discharge funnel (24), the rotating disk (37) is rotatably connected in the circular hole, a protruding rod (39) is fixedly arranged at the eccentric position of the front end of the rotating disk (37), a square frame (38) is matched with the protruding rod (39), a moving rod (40) is fixedly arranged at the lower end of the square frame (38), a moving plate (19) is fixedly arranged at the lower side of the moving rod (40), the moving plate (19) is slidably connected to the inner wall of the liquid discharge funnel (24), and the connection position of the connecting pipe (29) and the liquid discharge funnel (24) is located at the lower side of the moving plate (19).

7. The method for manufacturing an anti-dry-burning temperature sensor according to claim 6, characterized in that: A left-right symmetrical gear rod (27) is fixedly provided at the lower end of the movable plate (19); a rotating shaft (26) is rotatably connected to the left and right side walls of the liquid outlet funnel (24); a gear 1 (22) is fixedly provided on the rotating shaft (26); the gear 1 (22) is meshedly connected to the gear rod (27); and a blade (21) is also fixedly provided on the rotating shaft (26).

8. The method for manufacturing an anti-dry-burning temperature sensor according to claim 7, characterized in that: A left-right symmetrical push rod (42) is fixedly arranged on the upper end of the movable plate (19), and a U-shaped knock rod (20) is also slidably penetrated on the left and right side walls of the liquid outlet funnel (24). A return spring (43) is sleeved on the upper horizontal section of the U-shaped knock rod (20), and a push head (41) is arranged on the upper side of the push rod (42). The push rod (42) cooperates with the push head (41), and the push head (41) is fixedly arranged on the upper horizontal section of the U-shaped knock rod (20). One end of the return spring (43) is fixedly connected to the push head (41), and the other end of the return spring (43) is fixedly connected to the inner wall of the liquid outlet funnel (24). A knocking head (47) is fixedly arranged on the lower horizontal section of the U-shaped knocking rod (20). Openings are arranged on the two side walls of the U-shaped plate (28), and the lower horizontal section of the U-shaped knocking rod (20) corresponds to the position of the openings; an exhaust pipe obliquely upward is arranged on the liquid outlet funnel (24), and a valve is arranged in the exhaust pipe.

9. The method for manufacturing an anti-dry-burning temperature sensor according to claim 6, characterized in that: A sliding frame (44) is also provided on the rear side wall of the liquid outlet funnel (24), a sliding block (48) is fixedly provided on the sliding frame (44), and the sliding block (48) is slidably provided on the rear side wall of the liquid outlet funnel (24), a tooth plate (45) is symmetrically fixedly provided on the upper inner side of the sliding frame (44), a half gear (49) is fixedly provided on the rotating rod (46), and the half gear (49) is alternately meshed with the upper and lower tooth plates (45), and a limit rod (30) is fixedly provided on the lower end of the sliding frame (44), and a stopper (31) is fixedly provided on the lower end of the limit rod (30).

10. The method for manufacturing an anti-dry-burning temperature sensor according to claim 9, characterized in that: A hollow cylinder (34) is fixedly provided on the left vertical section of the U-shaped plate (28), a slide plate (35) is slidably provided in the hollow cylinder (34), an end of the slide plate (35) away from the left vertical section of the U-shaped plate (28) is fixedly provided with a push rod (33), the push rod (33) slides and extends out of the hollow cylinder (34), the other end of the push rod (33) is fixedly connected with a matching plate (32), and the matching plate (32) is fixedly provided on the stopper (31) The air push rod (33) is also sleeved with a push spring (36), one end of the push spring (36) is fixedly connected to the slide plate (35), the other end of the push spring (36) is fixedly connected to the inner wall of the hollow cylinder (34), the hollow cylinder (34) is connected with an air pipe (25), the other end of the air pipe (25) is connected to the liquid outlet funnel (24), and the connecting position of the air pipe (25) and the liquid outlet funnel (24) is located below the movable plate (19).

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