Structure of an electric heater

Abstract

In the field of the technology of household electrical appliances, the structure of an electric heating device is provided. [Solution] The device includes a base 100, a heating tube 200, a reflector 300, and a rotary drive unit. The base is provided with a first mounting portion 101, and a rotatable turntable 500 is provided around the first mounting portion. The lower end of the heating tube is attached to the first mounting portion, and the reflector is mounted on the turntable, with the reflector having a reflective surface facing the heating tube. The rotary drive unit drives the turntable, causing the reflector to rotate around the heating tube. By driving the turntable with the rotary drive unit and rotating the reflector around the heating tube, the heat from the heating tube can be radiated over a wider area, and 360° radiation can also be achieved, expanding the radiation range. While the reflector rotates, the heating tube remains fixed, thus avoiding problems such as entanglement of wires connected to the heating tube.

Description

Technical Field

[0001] This invention belongs to the technical field of household electrical appliances, and particularly relates to the structure of an electric heater.

Background Art

[0002] A radiant heater realizes its heat transfer function by radiating infrared rays in a specific direction within a space through an electric heat radiation element and a reflection device. The transmission speed of infrared radiation (i.e., infrared rays) is fast, and the heating effect is remarkable.

[0003] The Chinese utility model document with publication number CN219530976U discloses a stepped oscillating heater, which includes an outer shell, the outer shell is provided with an emitting passage, and a rotating core is provided inside the outer shell, the rotating core includes a reflector and a heating tube provided in front of the reflector, the upper and lower ends of the rotating core are pivotally supported inside the outer shell, and a gear plate is provided at the upper end of the rotating core, the gear plate is driven and rotated by a drive gear, the drive gear is connected to an oscillating motor. A lock button is provided at the upper end of the outer shell, and a ballpoint pen type retractable mechanism equipped with a gear plate regulating rod is connected to the lower end of the lock button, the lock button operates the gear plate regulating rod. The gear plate is provided with an arc-shaped regulating groove, and the gear plate regulating rod can enter the regulating groove to regulate its position or disengage from the regulating groove. The gear plate is further provided with an oscillating stopper block, the oscillating stopper block is located on the path of the drive gear. Under the drive of the oscillating motor, the drive gear drives the turntable to rotate the rotating core. When the drive gear contacts the oscillating stopper block, the oscillating motor switches the direction of rotation, and the rotating core rotates in the opposite direction. This allows the rotating core to reciprocate within a 360-degree range, dissipating the heat and light from the heating tube on the rotating core into the surroundings. Because the rotating core is rotatable, the range of heat radiation is relatively wide. To concentrate heating on the front, pressing the lock button switches the gear plate regulating rod into the regulating groove and fixing hole above the rotating core. In this state, the gear plate regulating rod reciprocates only within the regulating groove, and the rotating core oscillates only within a 120-degree range in front, heating the front.

[0004] In the technical configuration disclosed in the above-mentioned patent document, the heat radiation range is expanded by oscillating, but when oscillating, the heating tube also rotates in accordance with it, causing the wires connected to the heating tube to be pulled, leading to problems such as wire fatigue and even loosening. Furthermore, in order to avoid wire entanglement, rotation at a predetermined angle cannot be achieved, and there are limitations to the radiation range. [Overview of the Initiative]

[0005] The purpose of this invention is to provide a structure for an electric heater, which avoids the problem of entanglement of wires connected to the heating tube and achieves 360° radiation by rotating the reflector while keeping the heating tube in a fixed position.

[0006] To achieve the above objective, the structure of the electric heater according to the embodiment of the present invention includes a base, a heating tube, a reflector, and a rotary drive unit. The base is provided with a first mounting portion, and a rotatable turntable is provided around the first mounting portion. The lower end of the heating tube is attached to the first mounting portion, the reflector is mounted on the turntable, and the reflector has a reflective surface facing the heating tube. The rotary drive unit drives the turntable, causing the reflector to rotate around the heating tube.

[0007] Furthermore, the base is provided with a protrusion, the protrusion is provided with a recessed portion that is recessed downwards, and the lower end of the heating tube is provided in the recess. The rotating disc is fitted to the outside of the protrusion, the inner circumference of the rotating disc is provided with a regulating step, the protrusion is provided with a regulating plate, and the regulating plate has a regulating portion that extends to the upper side of the regulating step.

[0008] Furthermore, a mounting recess is provided on the upper side of the base, the protrusion is provided within the mounting recess, and a cavity is formed between the protrusion and the mounting recess.

[0009] Furthermore, a mounting plate is provided on the upper side of the rotating disc, the outer circumference of the mounting plate extends outward from the rotating disc and is provided with a plurality of engagement grooves, and an engagement portion that engages with the engagement grooves is provided on the lower side of the reflector.

[0010] Furthermore, a support rod is provided on the base, an upper case is provided on the upper end of the support rod, a second mounting portion and a rotating seat that rotates around the second mounting portion are provided on the lower side of the upper case, the upper end of the heating tube is attached to the second mounting portion, and the upper end of the reflector is fixedly connected to the rotating seat.

[0011] Furthermore, a recessed cavity is provided on the lower side of the upper case, a connecting seat is provided inside the cavity, the rotating seat is rotatably connected to the connecting seat, and the second mounting portion is provided on the connecting seat.

[0012] Furthermore, a circular base portion extending downward is provided on the lower side of the connecting seat, and the rotating seat is fitted onto the outside of the circular base portion. A regulating ring extends from the inner circumference of the rotating seat, and a stopper plate is provided on the lower side of the circular base portion, with the stopper plate extending to the lower side of the regulating ring.

[0013] Furthermore, a connecting plate is provided on the lower side of the rotating seat, and a plurality of second engagement grooves are provided on the connecting plate, and a second engagement portion is provided on the upper side of the reflector that is inserted into the second engagement grooves.

[0014] Furthermore, a driven gear is provided on the outer circumference of the rotating seat. The rotational drive unit includes a motor and a drive gear, the motor is provided in the upper case, and the drive gear is connected to the motor and meshes with the driven gear.

[0015] Furthermore, the upper case includes a case body and a lid plate that covers the top of the case body. The fastening screws penetrate the bottom wall of the case body and are connected to the connecting seat. [Effects of the Invention]

[0016] The one or more technical configurations described above in the structure of the electric heater according to the embodiment of the present invention have at least the following technical effects.

[0017] This electric heater uses a rotary drive unit to drive a rotating disc, which rotates a reflector around the heating tube. This allows the heat from the heating tube to radiate over a wider area, and even achieves 360° radiation, expanding the radiation range. While the reflector rotates, the heating tube remains fixed, thus avoiding problems such as entanglement of the wires connected to the heating tube. [Brief explanation of the drawing]

[0018] To more clearly explain the technical configuration in the embodiments of the present invention, the drawings required in the description of the embodiments or the prior art will be briefly described below. Note that the drawings in the following description are only a part of the embodiments of the present invention, and it is obvious that those skilled in the art can obtain other drawings based on these drawings without creative efforts. [Figure 1] It is a configuration diagram of an electric heater according to an embodiment of the present invention. [Figure 2] It is a cross-sectional view of an electric heater according to an embodiment of the present invention. [Figure 3] It is an internal structure diagram of an electric heater according to an embodiment of the present invention. [Figure 4] It is a cross-sectional view of the internal structure of an electric heater according to an embodiment of the present invention. [Figure 5] It is a configuration diagram of the rotation drive part of an electric heater according to an embodiment of the present invention. [Figure 6] It is a configuration diagram of the pedestal part of an electric heater according to an embodiment of the present invention. [Figure 7] It is a cross-sectional view of the pedestal part of an electric heater according to an embodiment of the present invention. <> [Figure 8] It is a configuration diagram of the upper case part of an electric heater according to an embodiment of the present invention. [Figure 9] It is a cross-sectional view of the upper case part of an electric heater according to an embodiment of the present invention.

Embodiments for Carrying out the Invention

[0019] Hereinafter, the embodiments of the present invention will be described in detail. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals throughout indicate the same or similar components, or components having the same or similar functions. The embodiments described below with reference to the accompanying drawings are merely examples for explaining the embodiments of the present invention and should not be construed as limiting the present invention.

[0020] In the description of the embodiments of the present invention, terms indicating orientation or positional relationship such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientation or positional relationship shown in the attached drawings, and are merely for explaining the embodiments of the present invention and simplifying the description, and do not imply that the indicated device or component must have a specific orientation and be configured and operated in that specific orientation. Therefore, it should not be construed as limiting the present invention.

[0021] Furthermore, terms such as "first" and "second" are merely used for the purpose of description, and do not indicate or imply relative importance, nor do they implicitly indicate the quantity of the indicated technical features. Therefore, the features limited by "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present invention, "plural" means two or more unless there is a clear and specific limitation otherwise.

[0022] In the embodiments of the present invention, unless there are clear regulations and limitations otherwise, terms such as "attach", "connect", "couple" and "fix" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral formation. Also, it may be a mechanical connection or an electrical connection. Furthermore, it may be a direct connection, an indirect connection through an intermediate medium, a communication relationship inside two components, or an interaction relationship between two components. A person skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention according to the specific situation.

[0023] An embodiment of the structure of the electric heater of the present invention will now be described. Please refer to Figures 1 to 5. The electric heater of this embodiment comprises a base 100, a heating tube 200, a reflector 300, and a rotary drive unit 400. The base 100 is provided with a first mounting portion 101, and a rotatable turntable 500 is provided around the first mounting portion 101. The lower end of the heating tube 200 is attached to the first mounting portion 101. The reflector 300 is mounted on the turntable 500 and has a reflective surface facing the heating tube 200. The rotary drive unit 400 drives the turntable 500, causing the reflector 300 to rotate around the heating tube 200. The electric heater of this embodiment generates heat when the heating tube 200 is energized, and the reflector 300 focuses and reflects the heat radiation from the heating tube 200. When wide-area radiation is required, the rotary drive unit 400 drives the turntable 500, rotating the reflector 300 around the heating tube 200. This allows the heat from the heating tube 200 to be radiated over a wider area, and even 360° radiation can be achieved, expanding the radiation range. While the reflector 300 rotates, the heating tube 200 remains fixed, thus avoiding problems such as entanglement of wires connected to the heating tube 200.

[0024] Furthermore, referring to Figures 2, 4, and 7, the base 100 is provided with a protrusion 600, the protrusion 600 is provided with a recessed portion 601 that is recessed downwards, and the lower end of the heating tube 200 is mounted inside the recessed portion 601. The rotating disc 500 is fitted to the outside of the protrusion 600, the inner circumference of the rotating disc 500 is provided with a regulating step 501, and the protrusion 600 is provided with a regulating plate 610, the regulating plate 610 has a regulating portion that extends to the upper side of the regulating step 501. The regulating portion restricts the rotating disc 500 to the outside of the protrusion 600, preventing the rotating disc 500 from coming off the protrusion 600.

[0025] Furthermore, referring to Figures 2, 4, and 7, a mounting recess 101 is provided on the upper side of the base 100, the protrusion 600 is provided within the mounting recess 101, and a cavity 102 is formed between the protrusion 600 and the mounting recess 101. Components such as control circuits can be provided within the cavity 102.

[0026] Furthermore, referring to Figures 2, 4, and 7, a mounting plate 510 is provided on the upper side of the rotating disc 500, and the outer circumference of the mounting plate 510 extends outward from the rotating disc 500 and is provided with a plurality of engagement grooves 502, and an engagement part that engages with the engagement grooves 502 is provided on the lower side of the reflector 300, thereby fixing the reflector 300 to the rotating disc 500.

[0027] Furthermore, referring to Figures 1 to 5, a support rod 110 is provided on the base 100, and an upper case 700 is provided at the upper end of the support rod 110. A second mounting portion 701 and a rotating seat 800 that rotates around the second mounting portion 701 are provided on the lower side of the upper case 700. The upper end of the heating tube 200 is attached to the second mounting portion 701, and the upper end of the reflector 300 is connected to the rotating seat 800. In this embodiment, a support rod 110 is provided, the upper case 700 is provided on the support rod 110, the rotating seat 800 is provided at the bottom of the upper case 700, and the upper end of the reflector 300 is connected to the rotating seat 800, so the rotational stability of the reflector 300 can be increased.

[0028] Furthermore, a recessed cavity is provided on the lower side of the upper case 700, a connecting seat 710 is provided inside the cavity, the rotating seat 800 is rotatably connected to the connecting seat 710, and the second mounting portion 701 is provided on the connecting seat 800.

[0029] Furthermore, referring to Figures 2, 4, 8, and 9, a circular base portion 711 extending downward is provided on the lower side of the connecting seat 710, and the rotating seat 800 is fitted to the outside of the circular base portion 711. A regulating ring 801 extends from the inner circumference of the rotating seat 800, and a stopper plate 712 is provided on the lower side of the circular base portion 711. The stopper plate 712 extends to the lower side of the regulating ring 801, thereby regulating and holding the rotating seat 800 in place of the upper case 700.

[0030] Furthermore, referring to Figures 8 and 9, a connecting plate 810 is provided on the lower side of the rotating seat 800, and a plurality of second engagement grooves 811 are provided on the connecting plate 810, and a second engagement part is provided on the upper side of the reflector 300 that is inserted into the second engagement grooves 811.

[0031] Furthermore, referring to Figure 5, a driven gear 820 is provided on the outer circumference of the rotating seat 800. The rotary drive unit 400 includes a motor 410 and a drive gear 420. The motor 410 is housed inside the upper case 700, and the drive gear 420 is connected to the motor 410 and meshes with the driven gear 820. In this embodiment, since the rotary drive unit 400 is housed inside the upper case 700, the reflector 300 can be rotated more effectively.

[0032] Furthermore, referring to Figures 2, 4, and 9, the upper case 700 includes the case body 720 and a cover plate 730 that covers its upper part. Fastening screws penetrate the bottom wall of the case body 720 and are connected to the connecting seat 710. During assembly, opening the cover plate 730 allows the integrated structure consisting of the connecting seat 710, the rotary drive unit 400, and the rotary seat 800 to be connected to the upper case 700, making assembly easier.

[0033] Furthermore, referring to Figure 1, a protective net 120 is provided between the base 100 and the upper case 700 to prevent contact with the heating tube 200.

[0034] The foregoing describes only preferred embodiments of the present invention and does not limit it. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are all covered by the protection of the present invention.

Claims

1. The structure of an electric heater comprising a base, heating tube, reflector, and rotary drive unit, The base is provided with a first mounting portion, a rotatable disc is provided around the first mounting portion, the lower end of the heating tube is attached to the first mounting portion, the reflector is mounted on the disc, the reflector has a reflective surface facing the heating tube, and the rotation drive unit drives the disc to rotate the reflector around the heating tube. A structure of an electric heater characterized by the following features.

2. The base is provided with a protrusion, the protrusion is provided with a recessed portion located below it, the lower end of the heating tube is located within the recess, the rotating disc is fitted to the outside of the protrusion, the inner circumference of the rotating disc is provided with a regulating step, the protrusion is provided with a regulating plate, and the regulating plate has a regulating portion that extends above the regulating step. The structure of the electric heating device according to feature 1.

3. A mounting recess is provided on the upper side of the base, the protrusion is provided within the mounting recess, and a cavity is formed between the protrusion and the mounting recess. The structure of the electric heating device according to feature 2.

4. A mounting plate is provided on the upper side of the rotating disc, and the outer circumference of the mounting plate extends outward from the rotating disc and is provided with a plurality of engagement grooves, and an engagement portion that engages with the engagement grooves is provided on the lower side of the reflector The structure of the electric heating device according to feature 1.

5. The base is further provided with a support rod, an upper case is provided at the upper end of the support rod, a second mounting portion and a rotating seat that rotates around the second mounting portion are provided on the lower side of the upper case, the upper end of the heating tube is attached to the second mounting portion, and the upper end of the reflector is fixedly connected to the rotating seat. The structure of an electric heating appliance according to any one of claims 1 to 4.

6. A recessed cavity is provided on the lower side of the upper case, a connecting seat is provided inside the cavity, the rotating seat is rotatably connected to the connecting seat, and the second mounting portion is provided on the connecting seat. The structure of the electric heating device according to feature 5.

7. A circular base portion extending downward is provided on the lower side of the connecting seat, the rotating seat is fitted to the outside of the circular base portion, a regulating ring extends from the inner circumference of the rotating seat, a stopper plate is provided on the lower side of the circular base portion, and the stopper plate extends to the lower side of the regulating ring. The structure of the electric heating device according to feature 6.

8. A connecting plate is provided on the lower side of the rotating seat, and the connecting plate is provided with a plurality of second engagement grooves, and a second engagement part is provided on the upper side of the reflector that is inserted into the second engagement grooves. The structure of the electric heating device according to feature 6.

9. A driven gear is provided on the outer circumference of the rotating seat, and the rotational drive unit includes a motor and a drive gear, the motor is provided in the upper case, and the drive gear is connected to the motor and meshes with the driven gear. The structure of the electric heating device according to feature 6.

10. The upper case includes a case body and a lid plate that covers the top of the case body, and the fastening screws penetrate the bottom wall of the case body and are connected to the connecting seat. The structure of the electric heating device according to feature 6.

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