CN200943890Y - infrared heater - Google Patents

Abstract

An infrared electric heater comprising: a supporting body, which is provided with a base and a tube body, wherein the tube body is provided with a power line in a penetrating way, and the top end of the tube body is provided with a connecting seat; a heat source irradiation device, which is connected on the connecting seat by utilizing the positioning seat on the back surface and is electrically connected with the power line; a shell for the reflection cover to be arranged in and fixed; an infrared lamp tube is set on the central line of the reflecting cover and its installation height is located at 20866between the body and the cover body, and the center of the infrared lamp tube is located in the middle of two circle centers of two symmetrical arch bodies, so that the radiation heat of the upper half section of the infrared lamp tube is reflected by the two arch bodies and then emitted from the open end of the cover body at an included angle of 60-80 deg. The utility model discloses make heat energy reflection efficiency increase, prolong the life of fluorescent tube, and can promote the degree of consistency of irradiation range and heat energy, have and outwards give off the heat in the bowl to ensure the life of product.

Description

infrared heater

technical field

The utility model relates to an electrical appliance, in particular to an infrared electric heater which radiates heat in a reflection cover to ensure the service life of the product.

Background technique

An electric heater is an electrical appliance that converts electrical energy into heat energy. In order to increase the thermal efficiency of the electric heater, the lamp tube used as a heat source has also evolved into a high-power infrared lamp tube. However, although heat energy used as electric heaters and light energy used as lighting fixtures both have lamp tubes as heat sources and light sources respectively, their functions and requirements are completely different. For example, part of the light of lighting fixtures is directly irradiated by the lamp tube, while the other part is mostly concentrated in a certain angle after being reflected by the reflector to achieve the required spotlight brightness.

As for the lamp tube as the heat source of the electric heater, in addition to requiring a large power, its requirement for heat energy should be the diffusion of the effective range of irradiation, so that the heat energy distribution is better. Conversely, if the same method as lighting fixtures is used to gather heat in a specific narrow area, it will not only fail to achieve the purpose of warming the surrounding space, but also cause heat energy to be gathered like a light beam, making it easy to Concentrated heat energy is formed at the irradiated place, which will make people feel uncomfortable when irradiated.

处会有部分光线返回n介质，这种现象称之为反射。S、B、P所构成的面称之为入射面(incident plane)，SB光线称为入射光，BP光线为反射光，

称为法线，而入射光与法线所夹的角为入射角，以θ_i表示，反射光线与法线所夹的角为反射角以θ_r表示。反射定律可归纳成下面三点：In addition, the French scientist Fermat (Fermat) proposed the principle that the path of light should follow, which is the famous Fermat's theorem, that is, the light transmission process must abide by the principle that the time is the least. The principle that the light should abide by after the reflection is derived from this is called the law of reflection. We use Figure 1 to illustrate the law of reflection. When light is incident on medium n' from medium n, the interface

Part of the light will return to the n medium, this phenomenon is called reflection. The surface formed by S, B, and P is called the incident plane, the SB light is called the incident light, and the BP light is the reflected light.

It is called the normal, and the angle between the incident light and the normal is the incident angle, represented by θ _i , and the angle between the reflected light and the normal is the reflection angle, represented by θ _r . The law of reflection can be summarized in the following three points:

(1) The incident light, reflected light and normal are all on the incident surface.

(2) The incident light and reflected light are on both sides of the normal.

(3) The incident angle is equal to the reflection angle, θ _i =θ _r .

型反射罩12，该红外线灯管10的热源中心S上半段向上的辐射热，依前述费马定理，可归纳出光线在反射罩11或12反射后形成

的入射光及

或

的反射光，而此等反射光(热)会集中在中间的区域，如图8所示的形态，此外，热源中心S正上方的入射光SA经反射后，会集中在灯管10上，除了浪费热能外，此部分的反射热温度极高，对于红外线灯管10的使用寿命造成不良的影响。况且现有的反射罩大都由金属片弯摺成型，当

入射光及 反射光不断进行时，会在此区域内形成散热不易的缺点，时间一久，该反射罩11或12易变形，甚至弯曲，故在使用上仍然未尽理想。As shown in Fig. 2 and Fig. 3 again, it is the reflector used by the existing electric heater at present, but whether it is an arc reflector 11 or

type reflector 12, the upward radiant heat of the upper half of the heat source center S of the infrared lamp 10, according to the aforementioned Fermat's theorem, can be concluded that the light is formed after being reflected by the reflector 11 or 12

incident light and

or

The reflected light, and the reflected light (heat) will be concentrated in the middle area, as shown in Figure 8. In addition, the incident light SA directly above the heat source center S will be concentrated on the lamp tube 10 after being reflected, In addition to wasting heat energy, the temperature of the reflected heat at this part is extremely high, which has a bad influence on the service life of the infrared lamp 10 . Moreover, most of the existing reflectors are formed by bending metal sheets.

incident light and When the reflected light continues, it will form the disadvantage of not being easy to dissipate heat in this area. Over time, the reflector 11 or 12 is easily deformed or even bent, so it is still not ideal in use.

Utility model content

The main technical problem to be solved by the utility model is to overcome the above-mentioned defects in the prior art and provide a new type of infrared electric heater. , to increase the heat reflection efficiency and prolong the service life of the lamp tube, and can improve the irradiation range and the uniformity of heat energy, and can dissipate the heat in the reflector outward to ensure the service life of the product.

The technical scheme that the utility model solves its technical problem adopts is:

型面，且每一拱弧体分别界定出一圆心；一壳体是供前述反射罩装设于其内并固定；一红外线灯管，是设于该反射罩的中心线上，且其装设高度是位于该冂型体与罩状体之间，并使该红外线灯管的中心位于该二个对称拱弧体的二个圆心的中间，借以使红外线灯管上半段的辐射热经由该二拱弧体反射后由该罩状体的开口端呈60°～80°夹角射出。An infrared electric heater, comprising: a support body, which has a base and a tube body, a power cord is threaded through the tube body, and a connecting seat is provided at the top; a heat source irradiation device is connected to the locating seat on the back Connecting base, and is electrically connected with the power line; it is characterized in that, the heat source irradiation device includes: a reflection cover, which is integrally formed by extruding aluminum, and it has a cover-shaped body with arc-shaped symmetry on both sides, The top of the cover-shaped body forms a vertical body upwards, and the top surface of the vertical body is based on the center line of the reflector to form two non-planar symmetrical arcs, so that the top surface of the vertical body presents a

profile, and each arched body defines a center of circle respectively; a shell is for the reflector to be installed and fixed in it; an infrared lamp is arranged on the center line of the reflector, and its installation The height is located between the shape and the cover, and the center of the infrared lamp is located in the middle of the two centers of the two symmetrical arcs, so that the radiant heat of the upper half of the infrared lamp passes through The two arched bodies are reflected and emitted from the open end of the cover-shaped body at an angle of 60°-80°.

In the aforementioned infrared electric heater, a large number of cooling fins are provided on both sides of the reflective body.

In the aforementioned infrared electric heater, both sides of the cover-shaped body of the reflector include a first upwardly inserted groove for inserting and positioning the flange pieces on both sides of the housing.

In the above-mentioned infrared electric heater, the two sides of the cover-shaped body of the reflector include a second downwardly embedded groove for inserting and positioning the convex parts at both ends of a grille.

In the aforementioned infrared electric heater, a cover sheet is also provided on the casing.

In the aforementioned infrared electric heater, the electrode terminals on both sides of the infrared lamp tube are clamped and positioned by elastic clips locked at both ends of the reflector and electrically connected.

The beneficial effect of the utility model is that the reflector of the heat source irradiation device can avoid the infrared lamp tube during the radiant heat reflection, increase the heat energy reflection efficiency, prolong the service life of the lamp tube, and improve the irradiation range and heat energy efficiency. Uniformity, with the ability to dissipate the heat inside the reflector to ensure the service life of the product.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Figure 1 is a schematic diagram of Fermat's law of reflection

Figure 2 is a schematic diagram of an existing reflector

Figure 3 is a schematic diagram of another existing reflector

Fig. 4 is a three-dimensional schematic diagram of a preferred embodiment of the present invention

Fig. 5 is a sectional view of the heat source irradiation device of the present invention

Fig. 6A and Fig. 6B are reflection schematic diagrams of the reflector of the present invention

Fig. 7 is a schematic diagram of the radiation heat temperature zone when the utility model is in use

Figure 8 is a schematic diagram of the radiant heat temperature when the existing electric heater is in use

Explanation of symbols in the figure:

20 support body 21 base

22 power cord 23 tube body

24 connecting seat 30 heat source irradiation device

31 reflector 311 cover

312 round body 313 arc body

314 cooling fins 315 first slot

316 second slot 32 shell

321 Flange 33 Infrared Lamp

331 electrode terminal 34 elastic clip

35 grille 351 convex part

36 cover sheet 40 positioning seat

Detailed ways

First, please refer to Figure 4, the infrared electric heater disclosed by the utility model includes:

A support body 20, which is equipped with a base 21 and a tube body 23, the tube body 23 can be a multi-section telescopic type, but not limited thereto; and a power cord 22 is passed through the tube body 23, and a connecting seat is provided at the top twenty four;

A heat source irradiation device 30 is connected to the connection base 24 by using the positioning base 40 on the back, and is electrically connected with the power line 22 for supplying required power.

The main feature of the present utility model is the structure of the heat source irradiation device 30, please cooperate with Fig. 4 to Fig. 6 at the same time, which includes:

型面，且每一拱弧体313分别界定出一圆心N1、N2；此处的冂型体312两侧可为平行或呈

型状。A reflector 31 is integrally formed by extruding aluminum, and it is equipped with a cover-shaped body 311 that is symmetrical on both sides in an arc shape. Based on the central line AA' of the reflector, two non-planar symmetrical arched bodies 313 are formed, so that the top surface of the curved body 312 presents a

surface, and each arc body 313 defines a circle center N1, N2;

shape.

A casing 32 is for the aforementioned reflector 31 to be installed and fixed therein;

高度，借以使红外线灯管33上半段的辐射热经由该二拱弧体反射后由该罩状体311的开口端呈60°～80°夹角θ射出。An infrared lamp tube 33 is located on the centerline AA' of the reflector 31, and its installation height is between the shape body 312 and the cover-shaped body 311, and the center S of the infrared lamp tube 33 Located in the middle of the two centers N1 and N2 of the two symmetrical arch bodies 313, and the preferred embodiment is at the same height or slightly higher than the level of the two centers

The height is such that the radiant heat from the upper half of the infrared lamp 33 is reflected by the two arcs and emitted from the opening end of the cover 311 at an angle θ of 60°-80°.

Furthermore, as shown in FIG. 5 , the both sides of the shape body 312 of the reflector 31 are provided with a large number of heat dissipation fins 314, which are integrally formed by extruding aluminum with the reflector 31, which not only has better mechanical strength, but also can The heat inside the reflector 31 is dissipated outwards to ensure the service life of the product. Certainly, the heat dissipation fins 314 are not only disposed on both sides of the shape body 312 , but also can be disposed on both sides of the cover body 311 .

Moreover, the two sides of the cover-shaped body 311 of the reflector 31 can be provided with an upward first slot 315 and a downward second slot 316, which are respectively used for inserting and positioning the flange pieces 321 on both sides of the housing 32. , and for the protrusions 351 at both ends of a grille 35 to be embedded and positioned. The structure here is not limited to this, and can be changed according to requirements. In addition, a cover sheet 36 can also be provided on the housing 32 as required. In addition, the electrode terminals 331 on both sides of the infrared lamp 33 are held and positioned by the elastic clips 34 locked at both ends of the reflector 31 and are electrically connected, so that the power cord 22 provides power to the infrared lamp 33. power supply.

反射光

和法线

都在入射面

上，且位于法线两侧，再者入射角等于反射角θ_i＝θ_r。如此一来，借由该二个对称的拱弧体313能够将该红外线灯管33向上辐射的热光经反射后，不直接反射至红外线灯管33，而是由该罩状体311的开口端呈60°～80°夹角θ射出。依此类推，该红外线灯管33上段部左右两侧的辐射热，及下段部的辐射热除了SA方向直接辐射外，其余则如图6B所示的入射及反射路径；因此，灯管各面的辐射热经反射后，可均布在该60°～80°夹角θ之中。With the help of the above-mentioned technical means, please refer to Fig. 6A and Fig. 6B, wherein the upward radiant heat of the infrared lamp 33 is shown in Fig. Ma's theorem, incident light

reflected light

and normal

are on the plane of incidence

, and located on both sides of the normal, and the incident angle is equal to the reflection angle θ _i = θ _r . In this way, after being reflected by the two symmetrical arched bodies 313, the heat light radiated upward by the infrared lamp 33 is not directly reflected to the infrared lamp 33, but is reflected by the opening of the cover 311. The end is emitted at an angle θ of 60° to 80°. By analogy, the radiant heat on the left and right sides of the upper part of the infrared lamp 33, and the radiant heat on the lower part are not only radiated directly in the SA direction, but the rest are incident and reflected paths as shown in Figure 6B; therefore, each surface of the lamp tube After being reflected, the radiant heat can be evenly distributed in the included angle θ of 60°～80°.

形成最佳角度，进而扩大其照射范围，并使热能较为平均分散，而非集中在特定区域；故，本实用新型与现有电暖器相比，确实可增进功效。That is, the radiant heat temperature zone A1 shown in FIG. 7 is wider and more uniform than the radiant heat temperature zone A2 formed by the existing reflector 11 in FIG. 8 . The utility model uses a special reflector 31 to avoid the infrared lamp tube 33 when the heat source is reflected, so that the reflectivity of heat energy is increased, and the service life of the lamp tube is prolonged; and the incident surface

The optimal angle is formed, thereby expanding its irradiation range, and making the heat energy more evenly dispersed, rather than concentrated in a specific area; therefore, compared with the existing electric heater, the utility model can indeed improve the efficacy.

The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model, All still belong to within the scope of the technical solution of the utility model.

In summary, the utility model fully meets the needs of industrial development in terms of structural design, practicability and cost-effectiveness, and the disclosed structure also has an unprecedented innovative structure, novelty, creativity and practicability, and meets the needs of industrial development. According to the requirements of the new patent requirements, the application is filed in accordance with the law.

Claims (6)

1, a kind of infrared ray electric warmer comprises:

One supporter, it possesses a base and body, is equipped with power line in the body, and the top possesses a connecting seat;

One thermal source irradiation unit is to utilize the positioning seat at the back side to be bound up on this Connection Block, and is electric connection with this power line;

It is characterized in that this thermal source irradiation unit includes:

One reflector is one-body molded by aluminium extruded, and it possesses the hood-like body of the curved symmetry in both sides, one Jiong type body is upwards formed on this hood-like body top, this door-shaped body end face is to be benchmark with this reflector center line (AA '), forms two nonplanar symmetry arch arc bodies, makes this Jiong type body item face present one

Profile, and each arch arc body defines a center of circle (N1), (N2) respectively;

One housing is to be installed in it also fixing for aforementioned reflector;

One infrared lamp, be on the center line of being located at this reflector (AA '), and its mounting height is between this Jiong type body and hood-like body, and the center (S) that makes this infrared lamp is positioned at two centers of circle (N1) of these two symmetry arch arc bodies, the centres of (N2), is 60 °～80 ° angles (θ) via this two arches arc body reflection back by the openend of this hood-like body so as to the radiant heat that makes the infrared lamp upper semisection and penetrates.

2, infrared ray electric warmer according to claim 1 is characterized in that the Jiong type body both sides of described reflector are provided with most radiating fins.

3, infrared ray electric warmer according to claim 1, the hood-like body both sides that it is characterized in that described reflector comprise and be provided with first caulking groove that makes progress, and embeds the location for the flange piece of these housing both sides.

4, infrared ray electric warmer according to claim 1, the hood-like body both sides that it is characterized in that described reflector comprise and be provided with second a downward caulking groove, embeds the location for the two ends protuberance of a grille.

5, infrared ray electric warmer according to claim 1 is characterized in that also being provided with on the described housing opaque disk.

6, infrared ray electric warmer according to claim 1 is characterized in that the electrode tip of described infrared lamp both sides, is by the elasticity folder clamping location that is locked in these reflector two ends and is electric connection.

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