Infrared irradiation head

Abstract

The utility model relates to the technical field of infrared radiation, and discloses an infrared irradiation head which comprises a rear shell, a heat dissipation assembly, a frequency spectrum heating plate and a front shell assembly which are sequentially arranged from back to front. When the infrared irradiation head is used, the frequency spectrum heating plate emits infrared rays, and the infrared rays irradiate forwards through the irradiation holes in the protective net cover in front of the frequency spectrum heating plate; according to the frequency spectrum heating device, the heat dissipation fan is started, air enters the mounting cavity from the first air inlet and the second air inlet formed in the rear shell and is sucked into the heat dissipation groove through the heat dissipation fan, and gaps are formed between the peripheral wall and the rear side surface of the frequency spectrum heating plate and the heat dissipation groove; air blown out by the cooling fan flows from the rear side surface of the frequency spectrum heating plate to the peripheral wall of the frequency spectrum heating plate, so that heat emitted by the frequency spectrum heating plate is diffused to the periphery, finally crosses the frequency spectrum heating plate and is output outwards through the irradiation holes, and hot air is output to the front end of the infrared irradiation head. Therefore, the problems of local overheating and uneven temperature in front of the infrared irradiation head are solved.

Description

Technical Field

[0001] This utility model relates to the field of infrared radiation technology, and in particular to an infrared irradiation head. Background Technology

[0002] Infrared radiation, also known as infrared light, is an electromagnetic wave that falls between visible light and microwaves. It has significant heating and therapeutic effects and is widely used in industry, medicine, and healthcare.

[0003] An infrared irradiation head is a component that uses infrared rays for heating or physiotherapy. It mainly relies on the conversion of electrical energy into heat energy, which is then transferred to the target object or human body through radiation. To protect the infrared heating element and prevent burns to the user, a protective mesh cover is usually installed at the front end of the irradiation head.

[0004] However, since the heat-generating components are usually located in the center of the infrared irradiation head, this causes heat to concentrate in front of the infrared irradiation head or in other areas directly opposite the heating element, resulting in localized overheating and uneven temperature distribution. Furthermore, the larger the irradiation surface of the heating element and the more downward-facing the heating working surface, the more pronounced these problems of localized overheating and uneven temperature distribution become. Utility Model Content

[0005] The purpose of this invention is to provide an infrared irradiation head that solves the problems of localized overheating and uneven temperature in front of the working face of existing infrared irradiation heads.

[0006] To achieve the above objectives, this utility model provides an infrared irradiation head, which includes a rear shell, a heat dissipation assembly, a spectrum heating plate, and a front shell assembly arranged sequentially from back to front.

[0007] The rear shell is hollow, with a connection opening at the front end and a first air inlet at the rear end. Multiple second air inlets are spaced around the first air inlet.

[0008] The front shell assembly includes a front shell and a protective mesh cover. The front shell is a cylindrical structure with openings at both the front and rear ends. The front shell is connected to the rear shell and encloses it to form an installation cavity. The protective mesh cover is installed at the front end of the installation cavity, and the protective mesh cover has multiple irradiation holes that penetrate its front and rear surfaces.

[0009] The heat dissipation assembly includes a heat dissipation shroud and a cooling fan. The heat dissipation shroud is installed in the mounting cavity and located behind the protective mesh cover. A heat dissipation groove is provided at the front end of the heat dissipation shroud. The heat dissipation shroud also has a mounting hole that penetrates both sides of the heat dissipation shroud in the front-rear direction and communicates with the heat dissipation groove. The cooling fan is installed in the mounting hole.

[0010] The spectrum heating plate is installed in the heat dissipation groove, and the spectrum heating plate is connected to the heat dissipation cover; there are gaps between the peripheral wall and the rear surface of the spectrum heating plate and the heat dissipation groove.

[0011] Furthermore, the rear shell includes a body portion and an extension portion connected sequentially from front to back;

[0012] Both the main body and the extension are hollow with openings at both ends; the extension extends rearward and its diameter gradually decreases from front to back, and the rear opening of the extension is defined as the first air inlet.

[0013] The rear end of the main body is provided with multiple second air inlets.

[0014] Furthermore, the multiple second air inlets are arranged in multiple groups, and the multiple groups of second air inlets are respectively located around the body portion;

[0015] In the same group of second air inlets, each second air inlet is evenly spaced;

[0016] The cross-section of the second air inlet is oblong.

[0017] Furthermore, the heat sink includes a heat dissipation section and a mounting section connected sequentially from front to back;

[0018] The heat dissipation part has a heat dissipation groove at its front end, and the bottom of the heat dissipation groove has an opening. The mounting part is connected to the opening. The mounting part is hollow with openings at both ends, and the inner wall of the mounting part defines the mounting hole.

[0019] Furthermore, several connecting portions are fixedly provided on the upper and lower surfaces of the spectrum heating plate;

[0020] The connecting part extends in the front-to-back direction, and a connecting hole is provided in the connecting part that penetrates its front and rear surfaces.

[0021] The spectrum heating plate is detachably connected to the heat sink through the connection hole.

[0022] Furthermore, the protective mesh cover includes a frame, connecting strips, spacers, and fixing rings; the fixing rings are located at the center of the frame and are fixedly connected to the frame by four spaced-apart connecting strips; two of the connecting strips extend horizontally, and the other two extend vertically.

[0023] Multiple spacer strips are provided between two adjacent connecting strips and the inner wall of the frame; the multiple spacer strips define the illumination hole.

[0024] Furthermore, the front shell and the rear shell are connected to form a shell, and the projection of the shell in the horizontal direction is an arc shape that is concave to the rear.

[0025] Furthermore, a connecting protrusion extends forward from the front edge of the rear shell;

[0026] The rear edge of the front shell is recessed inward and has a connecting groove, which is adapted to the connecting protrusion;

[0027] The connecting protrusion is inserted into the connecting groove.

[0028] Compared with the prior art, the infrared irradiation head provided by this utility model has the following advantages:

[0029] This utility model provides an infrared irradiation head, which includes a rear shell, a heat dissipation assembly, a spectrum heating plate, and a front shell assembly arranged sequentially from back to front. When the infrared irradiation head is in use, the spectrum heating plate emits infrared rays, which are irradiated forward through the irradiation hole on the protective mesh cover in front of it. When the cooling fan is activated, air enters the mounting cavity from the first and second air inlets opened in the rear shell, and is drawn into the heat dissipation groove by the cooling fan. Since there are gaps between the peripheral wall and the rear surface of the spectrum heating plate and the heat dissipation groove, the air blown out by the cooling fan will flow from the rear surface of the spectrum heating plate to the peripheral wall of the spectrum heating plate, thereby diffusing the heat emitted by the spectrum heating plate to the surroundings. Finally, the air passes over the spectrum heating plate and is output outward through the irradiation hole, thereby outputting hot air to the front end of the infrared irradiation head, thus solving the problems of local overheating and uneven temperature in front of the working face of the infrared irradiation head. In addition, the first air inlet and multiple second air inlets spaced around the first air inlet allow the heat accumulated by the spectral heating plate to be carried away when air is introduced, so that the heat can be transported to the front end of the infrared irradiation head through the irradiation hole at the front end. Attached Figure Description

[0030] Figure 1 This is an explosion diagram of an infrared irradiation head according to an embodiment of the present invention;

[0031] Figure 2 This is a cross-sectional structural schematic diagram of an infrared irradiation head according to an embodiment of the present utility model;

[0032] Figure 3 yes Figure 2 Enlarged view of region A in the middle;

[0033] Figure 4 This is a three-dimensional structural schematic diagram of an infrared irradiation head according to an embodiment of the present utility model;

[0034] Figure 5This is a three-dimensional structural diagram of a protective mesh cover in an infrared irradiation head according to an embodiment of this utility model.

[0035] In the figure, 100 is the infrared irradiation head; 1 is the rear shell; 101 is the first air inlet; 102 is the second air inlet; 11 is the main body; 12 is the extension; 13 is the connecting protrusion; 2 is the heat dissipation assembly; 21 is the heat dissipation cover; 210 is the heat dissipation groove; 211 is the heat dissipation part; 212 is the mounting part; 22 is the cooling fan; 3 is the spectrum heating plate; 31 is the connecting part; 310 is the connecting hole; 4 is the front shell assembly; 41 is the front shell; 410 is the connecting groove; 42 is the protective mesh cover; and 420 is the irradiation hole. Detailed Implementation

[0036] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0037] In the description of this utility model, it should be understood that the term "spectrum heating plate" used in this utility model is a device that uses electrothermal conversion technology to emit a spectrum of a specific wavelength (such as infrared) through its own nano-carbon crystal or carbon fiber material. The spectrum heating plate is prior art and will not be described in detail here.

[0038] like Figures 1-5 As shown, an infrared irradiation head 100 according to an embodiment of the present invention includes a rear shell 1, a heat dissipation assembly 2, a spectrum heating plate 3 and a front shell assembly 4 arranged sequentially from back to front.

[0039] The rear shell 1 is hollow, with a connection opening at the front end and a first air inlet 101 at the rear end. Multiple second air inlets 102 are spaced around the first air inlet 101.

[0040] The front shell assembly 4 includes a front shell 41 and a protective mesh cover 42. The front shell 41 is a cylindrical structure with openings at both the front and rear ends. The front shell 41 is connected to the rear shell 1 and forms an installation cavity. The protective mesh cover 42 is installed at the front end of the installation cavity. The protective mesh cover 42 has multiple irradiation holes 420 that penetrate its front and rear surfaces.

[0041] The heat dissipation assembly 2 includes a heat dissipation shroud 21 and a cooling fan 22. The heat dissipation shroud 21 is installed in the mounting cavity and located behind the protective mesh cover 42. A heat dissipation groove 210 is provided at the front end of the heat dissipation shroud 21. The heat dissipation shroud 21 also has a mounting hole, which penetrates both sides of the heat dissipation shroud 21 in the front-rear direction and communicates with the heat dissipation groove 210. The cooling fan 22 is installed in the mounting hole.

[0042] The spectrum heating plate 3 is installed in the heat dissipation groove 210, and the spectrum heating plate 3 is connected to the heat dissipation cover 21; there are gaps between the peripheral wall and the rear surface of the spectrum heating plate 3 and the heat dissipation groove 210.

[0043] Based on the above scheme, when the infrared irradiation head 100 is in use, the spectrum heating plate 3 emits infrared rays, which are irradiated forward through the irradiation hole 420 on the protective mesh cover 42 in front of it; the cooling fan 22 is activated, and air enters the mounting cavity from the first air inlet 101 and the second air inlet 102 opened in the rear shell 1, and is drawn into the heat dissipation groove 210 by the cooling fan 22. Since there are gaps between the peripheral wall and the rear surface of the spectrum heating plate 3 and the heat dissipation groove 210, the air blown out by the cooling fan 22 will flow from the rear surface of the spectrum heating plate 3 to the peripheral wall of the spectrum heating plate 3, thereby diffusing the heat emitted by the spectrum heating plate 3 to the surroundings, and finally passing over the spectrum heating plate 3 and being output outward through the irradiation hole 420, thereby outputting hot air to the front end of the infrared irradiation head 100, thus solving the problems of local overheating and uneven temperature. Furthermore, the first air inlet 101 and a plurality of second air inlets 102 spaced around the first air inlet 101 allow the heat accumulated by the heat radiation of the spectral heating plate 3 on the heat sink 21 to be carried away when air is introduced, so that the heat can be transported to the front end of the infrared irradiation head through the irradiation hole 420 at the front end.

[0044] Furthermore, such as Figure 1 and Figure 2 As shown, to specifically implement the arrangement of the first air inlet 101 and the second air inlet 102, the rear shell 1 includes a main body 11 and an extension 12 connected sequentially from front to back; both the main body 11 and the extension 12 are hollow with openings at both ends; the extension 12 extends rearward and its diameter gradually decreases from front to back, so that air can be evenly distributed into the mounting cavity and fully contact the rear side of the heat sink 21, thereby removing the heat from the heat sink 21; the rear end opening of the extension 12 is defined as the first air inlet 101; the rear end of the main body 11 is provided with a plurality of second air inlets 102.

[0045] Furthermore, such as Figure 1 and Figure 2 As shown, multiple second air inlets 102 are arranged in multiple groups, and the multiple groups of second air inlets 102 are respectively arranged around the body part 11; in the same group of second air inlets 102, each second air inlet 102 is evenly spaced; the cross-section of the second air inlet 102 is oblong.

[0046] It is understood that multiple sets of second air inlets 102 are respectively arranged around the body portion 11 to ensure that air enters the equipment interior evenly from multiple directions and is evenly distributed in the mounting cavity. In the same set of second air inlets 102, each second air inlet 102 is evenly spaced to facilitate the machining of the second air inlets 102 on the body portion 11; the second air inlet 102 with an elongated oval cross-section has a larger air intake area than a circular one, and is easier to manufacture.

[0047] Furthermore, such as Figure 1 and Figure 2 As shown, to facilitate the setting of the mounting hole and thus the positioning and installation of the cooling fan 22, the heat sink 21 includes a heat dissipation part 211 and a mounting part 212 connected sequentially from front to back; the front end of the heat dissipation part 211 is provided with a heat dissipation groove 210, the bottom of the heat dissipation groove 210 is provided with an opening, and the mounting part 212 is connected to the opening; the mounting part 212 is hollow with openings at both ends, and the inner wall of the mounting part 212 defines the mounting hole.

[0048] Furthermore, such as Figure 1 and Figure 2 As shown, to facilitate the connection of the spectrum heating plate 3 to the heat sink 21 and to facilitate subsequent maintenance and repair of the spectrum heating plate 3, a plurality of connecting parts 31 are fixedly provided on the upper and lower surfaces of the spectrum heating plate 3; the connecting parts 31 extend in the front-back direction, and the connecting parts 31 have connecting holes 310 that penetrate through the front and rear surfaces; the spectrum heating plate 3 is detachably connected to the heat sink 21 through the connecting holes 310.

[0049] Furthermore, such as Figure 1 and 5 As shown, the protective mesh cover 42 includes a frame 421, connecting strips 422, spacer strips 423, and fixing rings 424; the fixing rings 424 are located at the center of the frame 421 and are fixedly connected to the frame 421 by four spaced connecting strips 422; two connecting strips 422 extend horizontally, and the other two connecting strips 422 extend vertically; multiple spacer strips 423 are provided between adjacent connecting strips 422 and the inner wall of the frame 421; the multiple spacer strips 423 define the illumination hole 420.

[0050] It is understood that a connecting strip 422 is provided every 90° around the outer periphery of the fixing ring 424, and four irradiation ports are separated by the connecting strip 422 and the frame 421. Each irradiation port is provided with multiple spacer strips 423, and the irradiation hole 420 is formed by the spacer strips 423.

[0051] Preferably, such as Figure 1 and 5 As shown, the spacer bar 423 is inclined in the horizontal direction, which makes the infrared rays more dispersed when passing through the protective net cover 42, and further improves the uniformity of irradiation.

[0052] Furthermore, such as Figure 4 As shown, the front shell 41 and the rear shell 1 are connected to form a housing, and the projection of the housing in the horizontal direction is an arc shape that is concave to the rear. This is so that multiple infrared rays emitted from the irradiation hole 420 will eventually converge at a point in front, thereby enhancing the infrared irradiation efficiency.

[0053] Furthermore, such as Figure 2 and Figure 3 As shown, to facilitate the connection and installation of the front shell 41 and the rear shell 1, the front edge of the rear shell 1 extends forward and is provided with a connecting protrusion 13; the rear edge of the front shell 41 is recessed inward and is provided with a connecting groove 410, the connecting groove 410 is adapted to the connecting protrusion 13; the connecting protrusion 13 is inserted into the connecting groove 410.

[0054] The working process of this utility model is as follows: the spectrum heating plate 3 emits infrared rays, which are irradiated forward through the irradiation hole 420 on the protective mesh cover 42 in front of it;

[0055] When the cooling fan 22 is turned on, air enters the mounting cavity through the first air inlet 101 and the second air inlet 102 of the rear shell 1, and is drawn into the heat dissipation groove 210 by the cooling fan 22. The air blown out by the cooling fan 22 will flow from the rear surface of the spectrum heating plate 3 to the peripheral wall of the spectrum heating plate 3, thereby diffusing the heat of the spectrum heating plate 3 to the surroundings, and finally outputting it outward through the irradiation hole 420.

[0056] In summary, this utility model embodiment provides an infrared irradiation head 100, which includes a rear shell 1, a heat dissipation assembly 2, a spectrum heating plate 3, and a front shell assembly 4 arranged sequentially from back to front. When the infrared irradiation head 100 is in use, the spectrum heating plate 3 emits infrared rays, which are irradiated forward through the irradiation hole 420 on the protective mesh cover 42 in front of it. When the cooling fan 22 is activated, air enters the mounting cavity from the first air inlet 101 and the second air inlet 102 opened in the rear shell 1, and is drawn into the heat dissipation groove 210 by the cooling fan 22. Since there are gaps between the peripheral wall and the rear surface of the spectrum heating plate 3 and the heat dissipation groove 210, the air blown out by the cooling fan 22 will flow from the rear surface of the spectrum heating plate 3 to the peripheral wall of the spectrum heating plate 3, thereby diffusing the heat emitted by the spectrum heating plate 3 to the surroundings. Finally, it passes over the spectrum heating plate 3 and is output outward through the irradiation hole 420, thereby outputting hot air to the front end of the infrared irradiation head 100, thus solving the problems of local overheating and uneven temperature. Furthermore, the first air inlet 101 and a plurality of second air inlets 102 spaced around the first air inlet 101 allow the heat accumulated by the heat radiation of the spectral heating plate 3 on the heat sink 21 to be carried away when air is introduced, so that the heat can be transported to the front end of the infrared irradiation head through the irradiation hole 420 at the front end.

[0057] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. An infrared irradiation head characterized by comprising: It includes a rear shell, a heat dissipation assembly, a spectrum heating plate, and a front shell assembly arranged sequentially from back to front; The rear shell is hollow, with a connection opening at the front end and a first air inlet at the rear end. Multiple second air inlets are spaced around the first air inlet. The front shell assembly includes a front shell and a protective mesh cover. The front shell is a cylindrical structure with openings at both the front and rear ends. The front shell is connected to the rear shell and encloses it to form an installation cavity. The protective mesh cover is installed at the front end of the installation cavity, and the protective mesh cover has multiple irradiation holes that penetrate its front and rear surfaces. The heat dissipation assembly includes a heat dissipation shroud and a cooling fan. The heat dissipation shroud is installed in the mounting cavity and located behind the protective mesh cover. A heat dissipation groove is provided at the front end of the heat dissipation shroud. The heat dissipation shroud also has a mounting hole that penetrates both sides of the heat dissipation shroud in the front-rear direction and communicates with the heat dissipation groove. The cooling fan is installed in the mounting hole. The spectrum heating plate is installed in the heat dissipation groove, and the spectrum heating plate is connected to the heat dissipation cover; there are gaps between the peripheral wall and the rear surface of the spectrum heating plate and the heat dissipation groove.

2. The infrared illumination head of claim 1, wherein, The rear shell includes a main body and an extension that are connected sequentially from front to back; Both the main body and the extension are hollow with openings at both ends; the extension extends rearward and its diameter gradually decreases from front to back, and the rear opening of the extension is defined as the first air inlet. The rear end of the main body is provided with multiple second air inlets.

3. The infrared illuminator head of claim 2, wherein, Multiple second air inlets are arranged in multiple groups, and the multiple groups of second air inlets are respectively located around the body portion; In the same group of second air inlets, each second air inlet is evenly spaced; The cross-section of the second air inlet is oblong.

4. The infrared illuminator head of claim 1, wherein The heat sink includes a heat dissipation section and a mounting section connected sequentially from front to back; The heat dissipation part has a heat dissipation groove at its front end, and the bottom of the heat dissipation groove has an opening. The mounting part is connected to the opening. The mounting part is hollow with openings at both ends, and the inner wall of the mounting part defines the mounting hole.

5. The infrared illuminator head of claim 1, wherein, The upper and lower surfaces of the spectrum heating plate are respectively fixed with several connecting parts; The connecting part extends in the front-to-back direction, and a connecting hole is provided in the connecting part that penetrates its front and rear surfaces. The spectrum heating plate is detachably connected to the heat sink through the connection hole.

6. The infrared irradiation head as described in claim 1, characterized in that, The protective mesh cover includes a frame, connecting strips, spacer strips, and fixing rings; The fixing ring is located at the center of the frame and is fixedly connected to the frame by four connecting strips arranged at intervals; two of the connecting strips extend horizontally and the other two extend vertically. Multiple spacer strips are provided between two adjacent connecting strips and the inner wall of the frame; the multiple spacer strips define the illumination hole.

7. The infrared irradiation head as described in claim 1, characterized in that, The front shell and the rear shell are connected to form a shell, and the projection of the shell in the horizontal direction is an arc shape that is concave to the rear.

8. The infrared irradiation head as described in claim 1, characterized in that, The front edge of the rear shell extends forward and is provided with a connecting protrusion; The rear edge of the front shell is recessed inward and has a connecting groove, which is adapted to the connecting protrusion; The connecting protrusion is inserted into the connecting groove.

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