Quick-heating air heater heating core

Abstract

The utility model discloses a quick-heating air heater heating core, which belongs to the technical field of air heaters and comprises a protective tube, a ceramic heating core is arranged in the protective tube, a protective tube is fixed at the top end of the protective tube, and a positioning plate is arranged on the inner wall of the protective tube. The positioning plate is fixedly connected with the top of the ceramic heating core through a bolt, the top of the ceramic heating core is provided with a conductive rod, the bottom end of the conductive rod is provided with a ceramic rod, the outer wall of the ceramic rod is fixedly provided with a threaded pipe, and the top of the ceramic heating core is downwards provided with a mounting hole. After the electric rod is inserted into the mounting hole, the threaded pipe can independently rotate, so that the conductive rod is fixed in the ceramic heating core, the connection strength between the conductive rod and the ceramic heating core is improved, the conductive rod and the ceramic heating core can be continuously and tightly attached, and good contact between the conductive rod and the ceramic heating core is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of hot air heaters, in particular to a heating core of a hot air heater that heats quickly. Background Art

[0002] In modern industrial and household equipment, rapid heating technology plays a vital role. At present, hot air system equipment is usually equipped with a hot air heater. The hot air heater usually uses ceramic materials as the heating core. The ceramic heating core can heat up quickly after being powered on. By connecting the hot air heater to the pipeline, hot air can be continuously output and provided to the target environment.

[0003] After searching, the Chinese publication number is CN117676939A, and the patent name is ceramic heating core and its application equipment. It discloses that when the ceramic heating core and its application equipment are in use, the heating wire is placed in the mounting hole to form an air duct, and the convex ridge in the mounting hole is in point contact with the heating wire, which reduces the contact area between the heating wire and the ceramic heating core and forms a gap between the mounting hole and the heating wire, which is convenient for being carried out by the wind, so that the heat generated by the heating wire is utilized to the maximum extent, and the heat is locked to prevent the heat from being carried away and causing loss, thereby ensuring the heating temperature, reducing the heating time, and improving the heating efficiency. However, when the ceramic heating core is used in practice, the heating structure is directly inserted into the mounting hole inside the ceramic heating core, and there is a lack of a fastening structure between the heating structure and the ceramic heating core. During long-term use, the heating structure and the ceramic tube are prone to loosening and poor contact, resulting in discontinuous heat provided by the heat heater, which is not conducive to heating the target environment. Utility Model Content

[0004] Based on this, it is necessary to provide a fast-heating hot air heater core to address the problem that the heating structure and the ceramic tube are not firmly connected during long-term use during the heating of the target environment.

[0005] A fast-heating heat exchanger heating core comprises a protective tube, a ceramic heating core is arranged inside the protective tube, a protective tube is fixed to the top of the protective tube, a positioning plate is arranged on the inner wall of the protective tube, the positioning plate and the top of the ceramic heating core are fixedly connected by bolts, a conductive rod is arranged on the top of the ceramic heating core, a ceramic rod is arranged on the bottom of the conductive rod, a threaded tube is fixed on the outer wall of the ceramic rod, a mounting hole is opened downwardly from the top of the ceramic heating core, a threaded groove is arranged on the inner wall of the bottom end of the mounting hole, and the threaded tube and the threaded groove cooperate with each other.

[0006] As a further solution of the present invention, the conductive rod is a cylindrical structure, and a plurality of protrusions are provided on the outer wall of the conductive rod.

[0007] As a further solution of the utility model, a plug hole is provided in the middle of the top of the ceramic heating core, a threaded hole is also provided on the top of the ceramic heating core, and a bolt is provided between the positioning plate and the threaded hole.

[0008] As a further solution of the utility model, a connecting pipe is arranged on the top of the protection pipe, and flanges are arranged on the top end of the protection pipe and the bottom end of the connecting pipe.

[0009] As a further solution of the utility model, a wire arrangement hole is opened on the outer surface of one side of the protection tube, and a wiring tube is arranged on one side of the wire arrangement hole, a threaded joint is provided at the end of the wiring tube, and a cable is connected to the top of the conductive rod, and the cable can extend outward through the wire arrangement hole and the wiring tube.

[0010] As a further solution of the utility model, the outer surface of the top end of the ceramic rod is provided with an external thread, the ceramic rod and the conductive rod are screwed together through the thread, and a plurality of ventilation holes are opened on the top of the ceramic heating core.

[0011] When the utility model is in use, a conductive rod is arranged, the outer wall of the conductive rod is provided with a plurality of convex pieces, a mounting hole for accommodating the conductive rod is opened inside the ceramic heating core, and a threaded tube is provided at the bottom of the conductive rod, and a threaded groove is provided on the inner wall of the bottom end of the mounting hole. After the conductive rod is inserted into the mounting hole, the threaded tube can rotate independently, thereby fixing the conductive rod inside the ceramic heating core, improving the connection strength between the conductive rod and the ceramic heating core, and the conductive rod and the ceramic heating core can be continuously and tightly fitted, thereby ensuring that the conductive rod and the ceramic heating core are in good contact, which is beneficial to the continuous power supply of the ceramic heating core to generate heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0014] Figure 3 It is a structural schematic diagram of the ceramic heating core and the conductive rod of the utility model.

[0015] Figure 4 It is a cross-sectional view of the protection tube and the protective tube of the utility model.

[0016] Figure 5 It is a three-dimensional diagram of the conductive rod of the utility model.

[0017] Figure 6 for Figure 5 Enlarged view of part A in the middle.

[0018] Figure 7 It is a cross-sectional view of the ceramic heating core of the utility model.

[0019] Figure 8 for Figure 7 Enlarged view of part B in the middle.

[0020] In the figure: 1. connecting tube; 2. protective tube; 3. wiring tube; 4. protective tube; 5. conductive rod; 51. threaded tube; 52. ceramic rod; 6. cable; 7. positioning plate; 8. ceramic heating core; 9. threaded hole; 10. ventilation hole; 11. socket; 12. mounting hole; 13. threaded groove. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0022] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does 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 a limitation on the present application.

[0023] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0024] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0027] The technical solution provided by the embodiments of the present application is described below in conjunction with the accompanying drawings.

[0028] like Figure 1-Figure 8As shown, the present application provides a fast-heating hot air heater heating core, including a protective tube 4, a ceramic heating core 8 is arranged inside the protective tube 4, a protective tube 2 is fixed to the top of the protective tube 4, a positioning plate 7 is arranged on the inner wall of the protective tube 2, the positioning plate 7 and the top of the ceramic heating core 8 are fixedly connected by bolts, a conductive rod 5 is arranged on the top of the ceramic heating core 8, a ceramic rod 52 is arranged on the bottom end of the conductive rod 5, a threaded tube 51 is fixed on the outer wall of the ceramic rod 52, a mounting hole 12 is downwardly opened on the top of the ceramic heating core 8, a threaded groove 13 is arranged on the inner wall of the bottom end of the mounting hole 12, the threaded tube 51 and the threaded groove 13 cooperate with each other, specifically, the working principle of the ceramic heating core 8 is mainly based on the resistance heating effect, the ceramic heating core 8 is a device that generates heat by passing electric current through a specific material, and this material usually has a high resistivity. When current passes through, due to the effect of resistance, electrical energy is converted into thermal energy, thereby generating high temperature.

[0029] The conductive rod 5 is a cylindrical structure, and the outer wall of the conductive rod 5 is provided with a plurality of protrusions. Specifically, a groove body matching with the protrusion is provided inside the ceramic heating core 8 near the outer edge of the mounting hole 12, and the groove body is communicated with the mounting hole 12 to facilitate the insertion of the conductive rod 5 and the protrusion. By providing the protrusion, the connection stability between the conductive rod 5 and the ceramic heating core 8 is improved.

[0030] A socket 11 is provided in the middle of the top of the ceramic heating core 8, and a threaded hole 9 is also provided on the top of the ceramic heating core 8. A bolt is provided between the positioning plate 7 and the threaded hole 9. Specifically, a temperature sensor can be inserted into the socket 11, and the data cable connected to the head of the temperature sensor can pass through the cable hole and the wiring tube 3, and then extend to the outside and be connected to an external controller. The temperature of the ceramic heating core 8 is monitored by the temperature sensor to facilitate monitoring and control of the temperature of the heat exchanger.

[0031] A connecting pipe 1 is provided on the top of the protection pipe 2, and flanges are provided at the top end of the protection pipe 2 and the bottom end of the connecting pipe 1. Specifically, the protection pipe 4, the connecting pipe 1 and the protection pipe 2 can be connected by flanges, and a sealing gasket can be provided between two adjacent flanges to ensure the sealing between the pipes and avoid air leakage.

[0032] A wire arrangement hole is provided on the outer surface of one side of the protection tube 2, and a wiring tube 3 is provided on one side of the wire arrangement hole. A threaded joint is provided at the end of the wiring tube 3. A cable 6 is connected to the top of the conductive rod 5. The cable 6 can extend outward through the wire arrangement hole and the wiring tube 3. Specifically, a plastic tube can be connected to the end of the wiring tube 3. The cable 6 passes through the wiring tube 3 and then through the plastic tube. A thread is provided at the end of the plastic tube, which can be screwed together with the threaded joint at the end of the wiring tube 3. The cable 6 is protected by the plastic tube to prevent the cable 6 from being corroded by foreign objects.

[0033] The outer surface of the top end of the ceramic rod 52 is provided with an external thread, and the ceramic rod 52 is screwed together with the conductive rod 5 by threads. A plurality of ventilation holes 10 are provided on the top of the ceramic heating core 8. Specifically, an internal threaded hole is provided at the bottom of the conductive rod 5, and the internal threaded hole is screwed together with the ceramic rod 52 by threads. The top end of the ceramic rod 52 has a sufficient length to ensure that the top end of the ceramic rod 52 will not be separated from the conductive rod 5 during the screwing process of the threaded tube 51 and the threaded groove 13, thereby ensuring the stable connection between the threaded tube 51 and the ceramic rod 52 and the conductive rod 5.

[0034] The working principle of the utility model is:

[0035] Before use, first install it. During the installation process, insert the ceramic heating core 8 from the bottom of the protective tube 4 upward into the interior of the protective tube 4, and the top of the ceramic heating core 8 fits with the bottom of the positioning plate 7. By turning the ceramic heating core 8 by hand, the position between the threaded hole 9 at the top of the ceramic heating core 8 and the positioning plate 7 is adjusted to ensure that the screw hole at the top of the positioning plate 7 is aligned with the threaded hole 9 at the top of the ceramic heating core 8. Then manually operate the screwdriver to tighten the positioning plate 7 and the ceramic heating core 8 with bolts to ensure that the ceramic heating core 8 will not fall off the protective tube 4. Then tie the end of the cable 6 to the top of the conductive rod 5 and fix it by welding. Then, insert the conductive rod 5 downward from the top of the ceramic heating core 8 and insert it into the mounting hole 12 at the top of the ceramic heating core 8. After releasing the hand, pinch the ceramic rod 52 from the bottom of the ceramic heating core 8 and rotate the ceramic rod 52 counterclockwise. The ceramic rod 52 drives the threaded tube 51 to rotate. The threaded tube 51 is screwed with the thread groove 13 below the mounting hole 12. During the screwing process, the conductive rod 5 moves vertically downward, and the threaded tube 51 also moves downward. Then, the cable 6 connected to the top of the conductive rod 5 passes through the cable arrangement hole of the protective tube 2 and the wiring tube 3, and then extends outward, and finally connects to the external wiring seat, so as to energize the conductive rod 5.

[0036] During specific use, the ceramic heating core 8 of the present application can be placed horizontally for use. At the same time, the protective tube 4 and the connecting tube 1 are also in a horizontally placed state, and the end of the protective tube 4 can be connected to the indoor hot air system pipeline, and the end of the connecting tube 1 is connected to a fan. After the conductive rod 5 is energized, the current is transmitted to the ceramic heating core 8. The ceramic heating core 8 is energized to quickly dissipate heat. The fan draws air and passes through the connecting tube 1, the protective tube 2, and the ventilation hole 10 of the ceramic heating core 8, and then passes through the indoor hot air system pipeline, and finally delivered into the room.

[0037] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A fast-heating hot air heater core, comprising a protective tube (4), characterized in that: A ceramic heating core (8) is arranged inside the protective tube (4); a protective tube (2) is fixed to the top of the protective tube (4); a positioning plate (7) is arranged on the inner wall of the protective tube (2); the positioning plate (7) and the top of the ceramic heating core (8) are fixedly connected by bolts; a conductive rod (5) is arranged on the top of the ceramic heating core (8); a ceramic rod (52) is arranged at the bottom of the conductive rod (5); a threaded tube (51) is fixed to the outer wall of the ceramic rod (52); a mounting hole (12) is opened downward at the top of the ceramic heating core (8); a threaded groove (13) is arranged on the inner wall of the bottom end of the mounting hole (12); the threaded tube (51) and the threaded groove (13) cooperate with each other.

2. A fast heating air heater heating core according to claim 1, characterized in that: The conductive rod (5) is a cylindrical structure, and the outer wall of the conductive rod (5) is provided with a plurality of protrusions.

3. The fast heating air heater core according to claim 1, characterized in that: A plug hole (11) is provided in the middle of the top of the ceramic heating core (8), a threaded hole (9) is also provided on the top of the ceramic heating core (8), and a bolt is provided between the positioning plate (7) and the threaded hole (9).

4. The fast heating air heater core according to claim 1, characterized in that: A connecting pipe (1) is arranged on the top of the protection pipe (2), and flanges are arranged on the top end of the protection pipe (2) and the bottom end of the connecting pipe (1).

5. A fast heating air heater core according to claim 4, characterized in that: A wire arrangement hole is provided on the outer surface of one side of the protection tube (2), and a wiring tube (3) is provided on one side of the wire arrangement hole. A threaded joint is provided at the end of the wiring tube (3). A cable (6) is connected to the top end of the conductive rod (5), and the cable (6) can pass through the wire arrangement hole and the wiring tube (3) to extend outward.

6. The fast heating air heater core according to claim 1, characterized in that: The outer surface of the top end of the ceramic rod (52) is provided with an external thread, the ceramic rod (52) and the conductive rod (5) are screwed together via the thread, and a plurality of ventilation holes (10) are provided on the top of the ceramic heating core (8).

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