Thermal-pressure-sensitive resistor sintering furnace
By introducing a retaining plate, a protective plate, a rotating wheel, and heat dissipation fins into the furnace door mechanism of the thermostatic varistor sintering furnace, the problem of high-temperature leakage after opening was solved, and a safe and reliable operation process was achieved.
Patent Information
- Application Number
- CN202520068326.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-01-13
AI Technical Summary
When the thermostatic varistor sintering furnace is turned on, the high internal temperature causes rapid leakage of pressure and hot gas, endangering the safety of the operator.
A furnace door mechanism including a clamping plate, a protective plate, a rotating wheel, and heat dissipation fins was designed. The protective plate is stably deployed through the cooperation of the clamping shaft and the fixing frame. Combined with the cooling of the liquid-cooled cavity and the liquid injection pipe, the safety and convenience are enhanced.
It effectively insulates against heat and pressure, reducing the risk of operator injury from heat shock and improving operational safety and convenience.
Smart Images
Figure CN223925396U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sintering furnace technology, specifically to a thermocouple sintering furnace. Background Technology
[0002] A thermostatic pressure-sensitive resistor sintering furnace is a device specifically used for sintering thermistors. At high temperatures, it causes the solid particles of ceramic green bodies to bond together, grow grains, and gradually reduce voids and grain boundaries. Through the transfer of matter, its total volume shrinks, its density increases, and finally it becomes a dense polycrystalline sintered body with a certain microstructure.
[0003] Thermostatic pressure-sensitive resistor sintering furnace is a professional high-temperature sintering equipment. It sinters thermistor materials in a vacuum or protective atmosphere by precisely controlling the temperature and pressure to produce thermistors with excellent performance.
[0004] In the operation of a thermocouple sintering furnace, the ceramic materials silicon carbide and silicon nitride in the thermocouple are sintered at high temperatures, so that the raw material powder for manufacturing the thermocouple body is sintered into a whole so that the thermocouple can perform its due function. During the process of sintering the thermocouple into an independent unit, the sintering furnace needs to provide a large amount of pressure and heat energy, and a certain level of pressure and heat energy needs to be maintained stably inside the sintering furnace for a long time. After the thermocouple is sintered, the furnace door needs to be opened to remove the sintered thermocouple. However, after opening the sintering furnace, the temperature inside the sintering furnace is much higher than the ambient temperature, which can easily cause the pressure and hot gas inside the furnace to pour out quickly from the open furnace door, potentially causing injury to the operator's arms. Therefore, a thermocouple sintering furnace is proposed to address the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a thermostatic varistor sintering furnace to solve the problem that after the thermostatic varistor sintering furnace is opened, the temperature inside the furnace is much higher than the ambient temperature, which easily causes the pressure and hot gas inside the furnace to pour out quickly from the open furnace door, thus easily causing injury to the operator's arm.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A hot press - sensitive resistor sintering furnace, comprising a furnace body, support legs and a control mechanism. The support legs are fixedly connected to the outer side of the furnace body, and the control mechanism is arranged inside the furnace body. A furnace door mechanism is rotatably connected to the outer side of the furnace body. The furnace door mechanism includes a furnace door frame, and a door body is rotatably connected to the outer side of the furnace door frame. A protective component is fixedly connected to the outer side of the door body. The protective component includes a clamping plate, a clamping shaft is rotatably connected to the inner side of the clamping plate, a protective plate is fixedly connected to the outer side of the clamping shaft, a liquid injection pipe is fixedly connected to the inner side of the protective plate, a plug is closely attached to the inner side of the liquid injection pipe, a rotating wheel is slidably connected to the inner side of the protective plate, a fixed frame is closely attached to the inner side of the rotating wheel, a heat - dissipating arc piece is fixedly connected to one side of the protective plate close to the furnace body, a limiting plate is fixedly connected to the other side of the furnace body opposite to the side where the door body is arranged, an elastic air bag is fixedly connected to the outer side of the limiting plate, and a supporting plate is fixedly connected to one side of the furnace body close to the protective plate.
[0008] As a further optimized content of this utility model, specifically: there are two clamping plates in total. The clamping plates are symmetrically arranged on the upper and lower sides of the door body. The clamping plates are fixed to the door body by bolts. A notch is opened on the inner side of the clamping plate, and the clamping shaft is clamped inside the clamping plate.
[0009] As a further optimized content of this utility model, specifically: two fixed frames are fixedly connected to one side of the furnace body close to the protective plate. The fixed frames form an obtuse angle with the vertical plane of the furnace body. The fixed frames are symmetrically arranged on the upper and lower sides of the protective plate.
[0010] As a further optimized content of this utility model, specifically: the cross - section of the protective plate is in an "L" shape. The protective plate is closely attached to the door body. A sliding groove is opened on the inner side of the protective plate, and a liquid - cooling cavity is opened on the inner side of the protective plate. The liquid - cooling cavity on the inner side of the protective plate is communicated with the outside through the liquid injection pipe.
[0011] As a further optimized content of this utility model, specifically: the outer side of the protective plate is closely attached to the elastic air bag, one side of the protective plate close to the limiting plate is closely attached to the limiting plate, one side of the protective plate close to the limiting plate is in the same vertical plane as the furnace body, and the lower side of the protective plate is closely attached to the supporting plate.
[0012] As a further optimized content of this utility model, specifically: the vertical cross - section of the rotating wheel is in a "king" shape. The rotating wheel slides in the sliding groove opened on the inner side of the protective plate and rotates inside the fixed frame. The two rotating wheels are arranged on the upper and lower sides of the liquid - cooling cavity opened on the inner side of the protective plate.
[0013] As a further optimized content of this utility model, specifically: there are several heat - dissipating arc pieces in total. The heat - dissipating arc pieces are equidistantly distributed on the same side of the protective plate. The major - arc side of the heat - dissipating arc piece is closely attached to the furnace body. The upper and lower ends of the heat - dissipating arc piece are in the same plane as the upper and lower sides of the protective plate respectively.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] In this invention, the design of the thermostatic pressure-sensitive resistor sintering furnace, through the arrangement of the clamping plate, protective plate, rotating wheel, and heat dissipation arc fins, has significant beneficial effects. First, the ingenious design of the clamping plate and clamping shaft makes the unfolding and retraction of the protective plate stable and reliable, and convenient and safe to operate. Second, the obtuse angle design of the fixing frame not only provides stable support for the protective plate but also enhances the protective effect. The "L"-shaped cross-section design of the protective plate, combined with the liquid cooling cavity and liquid injection pipe, effectively improves the thermal energy cooling capacity and reduces the risk of users being impacted by thermal energy. The setting of the elastic air bag increases the buffering effect of the protective plate and improves operational safety. The design of the rotating wheel makes the movement of the protective plate smoother, improving flexibility and stability. The distribution of heat dissipation arc fins further enhances the heat dissipation effect and extends the service life of the protective plate. During the operation, the opening of the door causes the protective plate to unfold automatically, forming an effective protective barrier that effectively blocks heat and pressure. At the same time, the injection of liquid cooling solution further enhances the cooling effect. These designs improve the safety and convenience for operators to open the thermostatic pressure-sensitive sintering furnace and provide good safety protection for operators. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the furnace body structure of this utility model;
[0018] Figure 3 This utility model Figure 2 Schematic diagram of the structure at point A in the middle;
[0019] Figure 4 This is a schematic diagram of the protective component structure of this utility model;
[0020] Figure 5 This is a schematic diagram of the internal structure of the protective plate of this utility model.
[0021] In the diagram: 1. Furnace body; 2. Support legs; 3. Control mechanism;
[0022] 4. Furnace door mechanism; 41. Furnace door frame; 42. Door body;
[0023] 43. Protective components; 431. Clamping plate; 432. Clamping shaft; 433. Protective plate; 434. Injection tube; 435. Plug; 436. Rotary wheel; 437. Fixing bracket; 438. Heat dissipation fins;
[0024] 5. Limiting plate; 6. Elastic air bag; 7. Support plate. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0027] Please see Figure 1-5 This utility model provides a technical solution:
[0028] A thermocouple sintering furnace includes a furnace body 1, support legs 2, and a control mechanism 3. The support legs 2 are fixedly connected to the outer side of the furnace body 1, and the control mechanism 3 is installed on the inner side of the furnace body 1. A furnace door mechanism 4 is rotatably connected to the outer side of the furnace body 1. The furnace door mechanism 4 includes a furnace door frame 41, a door body 42 is rotatably connected to the outer side of the furnace door frame 41, and a protective component 43 is fixedly connected to the outer side of the door body 42. The protective component 43 includes a retaining plate 431, a retaining shaft 432 is rotatably connected to the inner side of the retaining plate 431, and a protective plate 4 is fixedly connected to the outer side of the retaining shaft 432. 33. An injection pipe 434 is fixedly connected to the inner side of the protective plate 433. The inner side of the injection pipe 434 is in close contact with the plug 435. A rotating wheel 436 is slidably connected to the inner side of the protective plate 433. The inner side of the rotating wheel 436 is in close contact with the fixing frame 437. A heat dissipation arc fin 438 is fixedly connected to the side of the protective plate 433 near the furnace body 1. A limit plate 5 is fixedly connected to the opposite side of the furnace body 1 where the door 42 is located. An elastic air bag 6 is fixedly connected to the outer side of the limit plate 5. A support plate 7 is fixedly connected to the side of the furnace body 1 near the protective plate 433.
[0029] As a further implementation of this solution, there are two clamping plates 431. The clamping plates 431 are symmetrically arranged on the upper and lower sides of the door body 42. The clamping plates 431 are fixed to the door body 42 by bolts. The inner side of the clamping plate 431 has a notch. The clamping shaft 432 is engaged with the inner side of the clamping plate 431. This design makes the unfolding and retraction of the protective plate 433 more stable and reliable. The design of the clamping shaft 432 also facilitates the movement and positioning of the protective plate 433, improving the convenience and safety of operation.
[0030] As a further implementation of this solution, two fixing brackets 437 are fixedly connected to the side of the furnace body 1 close to the protective plate 433. The fixing brackets 437 form an obtuse angle with the vertical plane of the furnace body 1 and are symmetrically arranged on the upper and lower sides of the protective plate 433. This design not only provides stable support for the protective plate 433 but also enables the protective plate 433 to better fit the furnace body 1 when unfolded through the obtuse angle design of the fixing brackets 437, improving the protection effect and increasing the stability of the protective plate 433 at the same time;
[0031] As a further implementation of this solution, the cross-section of the protective plate 433 is in an "L" shape. The protective plate 433 is closely attached to the door body 42. A chute is provided inside the protective plate 433, and a liquid cooling cavity is provided inside the protective plate 433. The liquid cooling cavity inside the protective plate 433 is connected to the outside through a liquid injection pipe 434. This design enables the protective plate 433 to better fit the door body 42 during use. At the same time, the design of the liquid cooling cavity also improves the heat energy cooling capacity of the protective plate 433, enhances the protection effect, and reduces the risk of the user being injured by heat energy impact;
[0032] As a further implementation of this solution, the outside of the protective plate 433 is closely attached to the elastic air bag 6. The side of the protective plate 433 close to the limiting plate 5 is closely attached to the limiting plate 5. The side of the protective plate 433 close to the limiting plate 5 is in the same vertical plane as the furnace body 1. The lower side of the protective plate 433 is closely attached to the support plate 7. This design enables the protective plate 433 to more stably cooperate with the furnace body 1 and the limiting plate 5 during the unfolding and retracting processes. The design of the elastic air bag 6 also increases the buffering effect of the protective plate 433 and improves the safety of operation;
[0033] As a further implementation of this solution, the vertical section of the runner 436 is in a "king" shape. The runner 436 slides in the chute provided inside the protective plate 433 and rotates inside the fixing bracket 437. Two runners 436 are arranged on the upper and lower sides of the liquid cooling cavity provided inside the protective plate 433. This design makes the movement of the protective plate 433 smoother. At the same time, the rotational connection relationship between the runner 436 and the fixing bracket 437 also improves the flexibility and stability of the protective plate 433, ensuring the smooth movement of the protective plate 433 during use;
[0034] As a further implementation of this solution, there are several heat dissipation arc pieces 438. The heat dissipation arc pieces 438 are evenly distributed on the same side of the protective plate 433. The major arc side of the heat dissipation arc piece 438 is closely attached to the furnace body 1. The upper and lower ends of the heat dissipation arc piece 438 are in the same plane as the upper and lower sides of the protective plate 433 respectively. This design not only enhances the heat dissipation effect of the protective plate 433 but also enables the heat energy to be more evenly dissipated through the distribution of the heat dissipation arc pieces 438, improving the service life of the protective plate 433 and reducing the risk of the user being injured by heat energy impact at the same time.
[0035] Workflow: During the use of this thermocouple sintering furnace, the thermocouple is placed inside the furnace and sintered into a solid block under high temperature and high pressure. When it is necessary to remove the sintered thermocouple from the furnace, the furnace door 42 is slowly opened. The door 42 can rotate within the furnace door frame 41, but when the door 42 opens from the furnace body 1, it can simultaneously rotate the furnace door frame 41, thus achieving stable opening of the door 42. During the gradual opening process of the door 42 from the furnace body 1, the door 42 can act on the clamping shaft 432 fixedly connected to the outside of the protective plate 433 through its fixedly connected clamping plate 431. The moving force causes the locking shaft 432 to rotate within the locking plate 431. Simultaneously, the locking shaft 432 can move along an irregular path following the arc of the locking plate 431. Since the protective plate 433, fixedly connected to the locking shaft 432, is somewhat restricted to the fixed frame 437 via the rotating wheel 436, the protective plate 433 can slide on the outside of the rotating wheel 436 through the connection between its inner groove and the rotating wheel 436 rotatably connected to the inner side of the fixed frame 437. Furthermore, the rotatable connection between the rotating wheel 436 and the fixed frame 437 ensures a relatively smooth connection between the protective plate 433 and the fixed frame 437 via the rotating wheel 436. Meanwhile, the inner fixing bracket 437 of the fixing bracket 437 can provide a certain degree of support and restriction for the protective plate 433. When the protective plate 433 moves, it will exert elastic pressure on the elastic air bag 6 fixedly connected to the inner side of the limiting plate 5, so that the protective plate 433 can break free from the restriction of the limiting plate 5 and the elastic air bag 6. After the door 42 of the sintering furnace is opened to a larger extent, the protective plate 433 will form a protective barrier on the side of the door 42 and the furnace body 1. In this way, the protective plate 433 can block the heat energy and pressure pouring out from the side of the door 42. Moreover, the heat dissipation arc fins 438 fixedly connected to the outer side of the protective plate 433 can enhance the natural dissipation effect of the heat energy and pressure pouring onto the protective plate 433. The liquid cooling solution injected into the inner side of the protective plate 433 by the liquid pipe 434 can give the protective plate 433 a strong thermal cooling capacity, reducing the risk of user injury from thermal shock after the sintering furnace door 42 is opened. After the heat and pressure inside the sintering furnace weaken, the locking shaft 432 fixedly connected to the protective plate 433 can be disengaged from the locking plate 431, and the protective plate 433 can slide in the opposite direction on the outside of the rotating wheel 436 through the inner sliding groove until the lower end of the protective plate 433 is in close contact with the support plate 7, and the protective plate 433 is close to the elastic air bag 6 and enters the inner side of the limiting plate 5, which can temporarily fix and restrict the position of the protective plate 433 so that the operator can take out the sintering heat varistor inside the sintering furnace body 1.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A hot-pressing resistance sintering furnace comprising a furnace body (1), supporting legs (2) and a control mechanism (3), characterized in that: The outside of the furnace body (1) is fixedly connected with supporting legs (2), the inside of the furnace body (1) is provided with a control mechanism (3), the outside of the furnace body (1) is rotatably connected with a furnace door mechanism (4), the furnace door mechanism (4) comprises a furnace door frame (41), the outside of the furnace door frame (41) is rotatably connected with a door body (42), the outside of the door body (42) is fixedly connected with a protection assembly (43), the protection assembly (43) comprises a clamping plate (431), the inside of the clamping plate (431) is rotatably connected with a clamping shaft (432), the outside of the clamping shaft (432) is fixedly connected with a protection plate (433), the inside of the protection plate (433) is fixedly connected with a liquid injection pipe (434), the inside of the liquid injection pipe (434) is in close contact with a plug (435), the inside of the protection plate (433) is slidably connected with a rotating wheel (436), the inside of the rotating wheel (436) is in close contact with a fixed frame (437), the side, close to the furnace body (1), of the protection plate (433) is fixedly connected with a heat dissipation arc piece (438), the side, opposite to the side provided with the door body (42), of the furnace body (1) is fixedly connected with a limiting plate (5), the outside of the limiting plate (5) is fixedly connected with an elastic air bag (6), and the side, close to the protection plate (433), of the furnace body (1) is fixedly connected with a supporting plate (7).
2. The hot pressed thermistor sintering furnace according to claim 1, characterized in that: The number of the clamping plates (431) is two, the clamping plates (431) are symmetrically arranged on the upper and lower sides of the door body (42), the clamping plates (431) are fixed on the door body (42) through bolts, the inside of each clamping plate (431) is provided with a notch, and the clamping shaft (432) is clamped in the inside of each clamping plate (431).
3. The hot pressed thermistor sintering furnace according to claim 1, characterized in that: The side, close to the protection plate (433), of the furnace body (1) is fixedly connected with two fixed frames (437), the fixed frames (437) form obtuse angles with the vertical plane of the furnace body (1), and the fixed frames (437) are symmetrically arranged on the upper and lower sides of the protection plate (433).
4. The hot pressed thermistor sintering furnace of claim 1, wherein: The cross section of the protection plate (433) is in the shape of "L", the protection plate (433) is in close contact with the door body (42), the inside of the protection plate (433) is provided with a sliding groove, the inside of the protection plate (433) is provided with a liquid cooling cavity, and the liquid cooling cavity in the inside of the protection plate (433) is in communication with the outside through the liquid injection pipe (434).
5. The hot pressed thermistor sintering furnace of claim 1, wherein: The outside of the protection plate (433) is in close contact with the elastic air bag (6), the side, close to the limiting plate (5), of the protection plate (433) is in close contact with the limiting plate (5), the side, close to the limiting plate (5), of the protection plate (433) is in the same vertical plane as the furnace body (1), and the lower side of the protection plate (433) is in close contact with the supporting plate (7).
6. The hot pressed thermistor sintering furnace of claim 1, wherein: The vertical section of the rotating wheel (436) is in the shape of "Wang", the rotating wheel (436) slides in the sliding groove in the inside of the protection plate (433), the rotating wheel (436) rotates in the inside of the fixed frame (437), and two rotating wheels (436) are arranged on the upper and lower sides of the liquid cooling cavity in the inside of the protection plate (433).
7. The hot pressed thermistor sintering furnace of claim 1, wherein: The number of the heat dissipation arc pieces (438) is several, the heat dissipation arc pieces (438) are equidistantly distributed on the same side of the protection plate (433), the heat dissipation arc piece (438) is close to the furnace body (1) on the side of the arc, and the upper and lower ends of the heat dissipation arc piece (438) are on the same plane with the upper and lower sides of the protection plate (433).