JP7376219B1 - hybrid heater - Google Patents

Abstract

An object of the present invention is to provide a hybrid heater that can increase air heating efficiency and effectively perform heating over a wide range. A hybrid heater 1 of the present invention includes a tubular heater 30 that is enclosed with a heater member that generates heat when energized and extends in a predetermined direction, and a reflector 40 that is located at a predetermined distance behind the tubular heater 30. , a blower 50 that supplies air to the reflector 40 from behind, and a main body 20 that accommodates the tubular heater 30, the reflector 40, and the blower 50. The reflecting plate 40 is provided with slit-shaped openings 40s that are bored in a direction intersecting the extending direction of the tubular heater 30, and a plurality of slit-shaped openings 40s are arranged in parallel along the extending direction of the tubular heater 30. [Selection diagram] Figure 2

Description

The present invention relates to a hybrid heater that performs heating using both radiation heating and convection heating, and particularly relates to a technique for improving heating efficiency.

Conventionally, electric heating type heaters include a tubular heater in which a heater element is placed inside a tubular member made of quartz glass, etc., and a radiation type heater that uses a reflector plate placed behind the tubular heater. Things are common.

In the case of such a heater, when the power is turned on, the heater element generates heat due to electricity, and radiant heat is radiated into the space from a tubular member made of quartz glass, etc. The radiant heat reflected from the reflector toward the front is transferred. This type of heater has a simple structure and has been widely distributed since ancient times.

However, in the case of a heater that transfers only radiant heat, heat can only be transferred to areas where the tubular heater or reflector is visible, resulting in uneven heating and not being able to efficiently transfer heat to large spaces. .

Therefore, a hybrid heater has been proposed that performs heating using both radiation heating and convection heating (Patent Document 1).

Japanese Patent Application Publication No. 2000-314532

According to the technology disclosed in Patent Document 1, the air flow generated by the fan can receive heat from the reflector and supply heated air forward, so that in addition to the radiant heat from the tubular heater and the reflector, the heated air is It is possible to utilize convection heating using air that has been stored in the room, allowing for effective heating even in larger spaces.

However, since the invention disclosed in Patent Document 1 receives heat from the reflection plate, the temperature of the supplied air is unlikely to rise. This is because the reflecting plate is arranged at a predetermined distance from the tubular heater at the rear of the tubular heater, so the reflecting plate itself is not heated. Further, since the reflecting plate is provided to reflect the radiant heat from the tubular heater, it is made of a material that has a high heat reflectance and a low heat absorption rate. Therefore, the temperature of the reflector itself is difficult to rise, and in the invention disclosed in Cited Document 1, which has a structure that receives heat from the reflector, the temperature of the air discharged from the heater cannot necessarily be said to be high.

The present invention has been made in view of such problems, and an object of the present invention is to provide a hybrid heater that can increase air heating efficiency and effectively perform heating over a wide range.

The present invention provides the following solution.

The hybrid heater according to the first feature includes: a tubular heater in which a heater member that generates heat when energized is enclosed and extends in a predetermined direction; a reflector located behind the tubular heater at a predetermined distance; This is a hybrid heater that includes a blower that supplies air from behind, and a main body that accommodates a tubular heater, a reflector, and the blower. The reflecting plate has a slit-like opening formed in a direction crossing the extending direction of the tubular heater, and a plurality of slit-like openings are arranged in parallel along the extending direction of the tubular heater.

According to the invention according to the first feature, each of the slit-shaped openings provided in the reflection plate is bored in a direction that intersects the extending direction of the tubular heater, so that the air is supplied from the blower through the slit-shaped openings. The ejected air flows around the tubular heater. When the air flows around the tubular heater, it receives heat directly from the tubular heater and also includes the heat accumulated inside the heater body, which becomes warm air and is supplied to the front of the main body, so the reflector The air can be heated more efficiently than conventional methods that receive heat indirectly from the air. In addition, since multiple slit-shaped openings are arranged in parallel along the extension direction of the tubular heater, the temperature of the air supplied from the front of the main body does not become uneven depending on the location, and the temperature is uniform over a wide range. Can supply wind.

The hybrid heater according to the second feature is the invention according to the first feature, and is formed so that the reflection plate is curved backward so as to cover the tubular heater from the rear.

According to the invention according to the second feature, since the reflecting plate is formed to be curved backward so as to cover the tubular heater from behind, the ejected water is emitted from the slit-shaped opening provided in the curved reflecting plate. The air then flows towards the tubular heater. Therefore, the air ejected from the slit-shaped opening reliably flows around the tubular heater, and the heat released from the tubular heater can be efficiently absorbed.

The hybrid heater according to the third feature is the invention according to the second feature, in which the reflection plate has a substantially semicircular cross section when viewed from the extending direction of the tubular heater.

According to the invention according to the third feature, since the cross section of the reflection plate when viewed from the extending direction of the tubular heater is formed in a substantially semicircular shape, the air ejected from the slit-shaped opening gathers on the tubular heater. The heat emitted from the tubular heater can be absorbed more effectively.

The hybrid heater according to the fourth feature is the invention according to the second or third feature, in which the extending direction of the tubular heater is substantially vertical, and the tubular heater is arranged side by side on the left and right in the width direction. The reflectors configured by the heater and located behind the side heaters include a center reflector part located on the center side in the width direction of the main body part and an end side reflector part located on the outer side in the width direction of the main body part. The slit-like opening is formed in the end-side reflecting plate part.

According to the invention according to the fourth feature, since the end-side reflector section is disposed so as to face the center of the main body, the air supplied from the blower is directed to the end-side reflector section. The liquid is ejected from the slit-shaped opening toward the center in the width direction of the main body. Therefore, the ejected air is prevented from being supplied from the main body at the same temperature, and is reliably heated by the tubular heater and supplied from the front of the main body as warm air, thereby warming the indoor air. Moreover, since the tubular heater extends in a substantially vertical direction, the entire hybrid heater can be constructed slimly and can be placed in a narrow space, while also eliminating the disadvantage of the narrow heating range of the tubular heater. This enables efficient heating.

The hybrid heater according to the fifth feature is the invention according to the second or third feature, in which the extending direction of the tubular heater is substantially horizontal, and the tubular heater is lower than the center of the main body in the height direction. It consists of an upper heater and a lower heater that are arranged in parallel above and below, and the reflector plate located behind the upper heater and the lower heater includes a center side reflector part located on the center side in the vertical direction of the main body part, and a reflector plate located behind the upper heater and the lower heater, respectively. and an end-side reflecting plate section located on the vertical end side of the section, and the slit-shaped opening is formed in the end-side reflecting plate section.

According to the invention according to the fifth feature, since the end reflector faces toward the center in the vertical direction of the main body, the air supplied from the blower flows through the slit shape formed in the end reflector. The liquid will be ejected from the opening toward the center of the main body in the vertical direction. Therefore, the ejected air is prevented from being supplied from the main body at the same temperature, and is reliably heated by the tubular heater and supplied from the front of the main body as warm air, thereby warming the indoor air. Moreover, since the tubular heater is arranged in a substantially horizontal direction, a wide space can be heated.

A hybrid heater according to a sixth aspect is the invention according to the first aspect, in which the blower is constituted by a cross-flow fan having a rotating shaft in substantially the same direction as the extending direction of the tubular heater.

According to the invention according to the sixth feature, since the air flowing from the blower flows uniformly through the slit-like openings formed in plurality along the extending direction of the tubular heater, the temperature of the hot air blown out is high. This eliminates non-uniformity caused by heating, allowing indoor air to be heated evenly even in large spaces. Moreover, since the extending direction of the tubular heater and the axial direction of the rotation axis of the cross-flow fan are set to be approximately the same, the entire device can be formed into a long shape in the axial direction, and the axial direction perpendicular to the axial direction can be Since the dimension in the direction can be shortened, the entire device can be configured compactly as a result.

According to the present invention, it is possible to provide a hybrid heater that can increase air heating efficiency and effectively perform heating over a wide range.

FIG. 1 is a perspective view showing the overall configuration of a hybrid heater 1 according to this embodiment. FIG. 2 is a perspective view of the hybrid heater 1 according to the present embodiment, with the front protective cover 21 removed. FIG. 3 is a front view of the hybrid heater 1 according to the present embodiment, with the front protective cover 21 removed. FIG. 4 is a perspective view showing the back side of the hybrid heater 1 according to this embodiment. FIG. 5 is an exploded perspective view of the hybrid heater 1 according to the present embodiment, viewed from the back side.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. Note that this is just an example, and the technical scope of the present invention is not limited to this.

The overall configuration of a hybrid heater 1 according to this embodiment will be explained using FIG. 1. FIG. 1 is a perspective view showing the overall configuration of a hybrid heater 1 according to the present embodiment, and FIG. 2 is a perspective view showing the hybrid heater 1 according to the present embodiment with a front protective cover 21 removed. , FIG. 3 is a front view of the hybrid heater 1 according to the present embodiment with the front protective cover 21 removed, and FIG. 4 is a perspective view showing the back side of the hybrid heater 1 according to the present embodiment. 5 is an exploded perspective view of the hybrid heater 1 according to the present embodiment, viewed from the back side.

As shown in FIG. 1, the hybrid heater 1 according to the present embodiment includes a pedestal portion 10 that serves as a base that is placed at an appropriate installation location, and a pedestal portion 10 that is rotated horizontally while standing upright with respect to the pedestal portion 10. The main body part 20 is movably connected.

As shown in FIGS. 1 and 5, the main body 20 includes a front protective cover 21 and a back cover 22, and houses a tubular heater 30, a reflector 40, and a blower 50.

The front protective cover 21 is a metal mesh member disposed in front of the tubular heater 30 and prevents the user from directly touching the tubular heater 30.

As shown in FIG. 5, the back cover 22 is a member that covers the reflector 40, the blower 50, and the partition wall 60 from behind. The back cover 22 includes a substantially semi-cylindrical bulge 22a that corresponds to the shape of the blower 50, and the bulge 22a covers the blower 50 from the rear, so that the blower chamber in which the blower 50 is arranged is opened. It is formed. A plurality of slit-shaped suction ports 22b are formed in the bulging portion 22a along the vertical direction, and air is supplied into the blower chamber through the suction ports 22b by the operation of the blower 50.

As shown in FIGS. 2 and 3, the tubular heater 30 is a heating member in which a heater member that generates heat when energized is enclosed in a tubular member such as quartz glass that extends in a predetermined direction. In this embodiment, the tubular heater 30 extends in the vertical direction, and includes a central heater 31 disposed approximately at the center of the main body 20 in the width direction, and two heaters 31 arranged in parallel on the sides of the main body 20 in the width direction. It is composed of side heaters 32, 32.

The reflecting plate 40 is a member for reflecting forward the heat radiated backward from the tubular heater 30, and is made of a plate-shaped member made of metal such as aluminum or stainless steel with high reflectivity. The reflection plate 40 is spaced a predetermined distance backward from the tubular heater 30 and has a substantially semicircular shape in plan view so as to cover the tubular heater 30 from behind in order to reflect the heat radiated from the tubular heater 30 forward. It is formed by curving backwards. The reflecting plate 40 has slit-like openings 40s, 40s, 40s, . Multiple lines are installed along the line.

Note that the reflecting plates 40, 40 according to this embodiment are arranged corresponding to the rear of the side heaters 32, 32, respectively. The reflecting plates 40, 40 disposed corresponding to the respective side heaters 32, 32 are bent to be convex toward the rear so as to cover the respective side heaters 32 from behind. It is constituted by a center side reflection plate part 41 located on the widthwise center side of the section 20 and an end side reflection plate part 42 located on the widthwise outside of the main body part 20 . The slit-shaped opening 40s is formed in the end-side reflective plate portion 42 located on the outer side in the width direction of the main body portion 20. At this time, since the reflector 40 is bent to be convex toward the rear, the end reflector 42 faces toward the center of the main body 20 in the width direction. Therefore, the slit-shaped opening 40s is also arranged so as to face the center side of the main body 20 in the width direction.

As shown in FIG. 5, the blower 50 sucks air from the back side of the main body 20 and sends it to the front of the reflector 40 through the air chamber and the slit-shaped opening 40s. It is composed of a cross flow fan having a rotating shaft (not shown) in the vertical direction.

As shown in FIG. 5, the partition wall 60 is connected to the reflector 40 from behind the reflector 40, and cooperates with the reflector 40 to define an air chamber that serves as a flow path for air supplied from the blower 50. This is a member formed at the rear of 40. The partition wall 60 has a shape that curves backward like the reflector 40 so that it can cooperate with the reflector 40 to form an air chamber behind the reflector 40. A slit-shaped opening (not shown) is formed in the partition wall 60 so that air supplied from the blower 50 can be supplied into the air chamber.

According to the hybrid heater 1 configured as described above, when the power is turned on by operating the operation section (not shown) provided on the base portion 10, the heater member (not shown) provided in the tubular heater 30 is energized, and the heater member generates heat. The radiant heat is radiated from the tubular heater 30 and a reflecting plate 40 provided at a predetermined distance behind the tubular heater 30.

Further, when the operation mode is a mode in which not only heating by the tubular heater 30 but also heating by convection using the blower 50 is performed, the blower 50 operates to generate the following air flow.

As the blower 50 operates, air first flows into the blower chamber from the suction port 22b formed in the bulge 22a of the back cover 22. The air that has flowed into the blower chamber flows into an air chamber defined by the partition wall 60 and the reflector 40 behind the reflector 40 through a slit-shaped opening provided in the partition wall 60 . Then, the air that has flowed into the air chamber is blown toward the tubular heater 30 through slit-shaped openings 40s, 40s, . . . formed in the reflection plate 40.

Since each slit-shaped opening 40s provided in the reflection plate 40 is perforated in a direction crossing the extending direction of the tubular heater 30, the air supplied from the blower 50 and blown out from the slit-shaped opening 40s is absorbed to some extent. It diffuses with a width and flows around the tubular heater 30. When the air flows around the tubular heater 30, it receives heat directly from the tubular heater 30 and is supplied to the front of the main body 20 as warm air, so it receives heat indirectly from the reflecting plate 40. The air can be heated more efficiently than the previous method.

Moreover, since a plurality of slit-shaped openings 40s are provided along the extending direction of the tubular heater 30, the air ejected from each slit-shaped opening 40s reaches the tubular heater 21, so that the air is supplied from the front of the main body 20. It is possible to supply hot air with a uniform temperature without the temperature of the air being uneven depending on the location. In this way, according to the hybrid heater according to the present embodiment, the heating efficiency of air can be increased, and heating can be performed effectively over a wide range.

Further, since the reflecting plate 40 is formed to be curved backward so as to cover the tubular heater 30 from behind, the air ejected from the slit-shaped opening 40s provided in the curved reflecting plate 40 is It flows towards the heater 30. Therefore, the air ejected from the slit-shaped opening 40s reliably flows around the tubular heater 30, and the heat released from the tubular heater 30 can be efficiently absorbed.

Alternatively, since the cross section of the reflection plate 40 when viewed from the extending direction of the tubular heater 30 is formed in a substantially semicircular shape so that the reflection plate 40 covers the tubular heater 30 from behind, the water is ejected from the slit-shaped opening 40s. The air flows so as to gather around the tubular heater 30, and the heat emitted from the tubular heater 30 can be absorbed more effectively.

Further, the extending direction of the tubular heater 30 is approximately vertical, and the tubular heater 30 is constituted by side heaters 32 arranged side by side on the left and right sides in the width direction, and the reflecting plates 40 located behind the side heaters 32 are respectively , a center side reflection plate part 41 located on the widthwise center side of the main body part 20, and an end part side reflection plate part 42 located on the widthwise outer side of the main body part 20, and the slit-shaped opening 40s is located on the end side. The reflector plate section 42 is perforated. At this time, since the end reflector 42 faces toward the center of the main body 20, the air supplied from the blower 50 passes through the slit opening 40s formed in the end reflector 42 to the main body 20. It will eject toward the center in the width direction. Therefore, the blown air is prevented from being supplied from the main body 20 at the same temperature, and is reliably heated by the tubular heater 30 and supplied from the front of the main body 20 as warm air, thereby warming the indoor air. . Moreover, since the extending direction of the tubular heater 30 is approximately vertical, the hybrid heater 1 as a whole can be constructed slimly and can be placed in a narrow space, and the disadvantage is that the heating range of the tubular heater 30 is narrow. This eliminates the problem and enables efficient heating.

Further, since the blower 50 is configured by a cross-flow fan having a rotating shaft in substantially the same direction as the extending direction of the tubular heater 30, a plurality of slit-like openings are formed along the extending direction of the tubular heater 30. The air flowing from the blower 50 is uniformly blown out from each of the 40s, eliminating non-uniformity in the temperature of the blown hot air depending on the location, and making it possible to uniformly warm the indoor air even in a wide space.

<Modified example>
Although the embodiment in which the tubular heater 30 extends in the vertical direction has been described above, as a modification, the tubular heater 30 may extend in the horizontal direction. In that case, although not shown, the main body 20 shown in FIG. 3 will be rotated 90 degrees.

That is, in the hybrid heater according to the modified example, the main body has a horizontally elongated shape, the tubular heater extends in a substantially horizontal direction, the tubular heater is a central heater disposed approximately at the vertical center of the main body, and It is composed of an upper heater and a lower heater that are arranged in parallel above and below the center of the main body in the height direction.

The reflecting plates are arranged to correspond to the rear of the upper heater and the lower heater, respectively. The reflecting plates arranged corresponding to the upper heater and the lower heater are bent to be convex toward the rear so as to cover the respective tubular heaters from behind, and are located on the center side of the main body in the vertical direction. The main body is composed of a center-side reflecting plate portion and an end-side reflecting plate portion located on the vertical end side of the main body portion. That is, the end-side reflecting plate portion of the reflecting plate corresponding to the upper heater is arranged above the upper heater, and the end-side reflecting plate portion of the reflecting plate corresponding to the lower heater is arranged below the lower heater.

The slit-shaped opening is formed in the end-side reflecting plate portion located on the end side in the vertical direction of the main body portion. At this time, each slit-shaped opening is perforated in the vertical direction, and a plurality of slit-shaped openings are arranged in parallel in the horizontal direction. At this time, since the reflector is bent to be convex toward the rear, the end reflector faces toward the center of the main body in the vertical direction. Therefore, the slit-shaped opening is also arranged so as to face the center side in the vertical direction of the main body.

By doing this, the end reflector faces toward the center in the vertical direction of the main body, so the air supplied from the blower passes through the slit-shaped opening formed in the end reflector into the main body. It will eject toward the center in the vertical direction. Therefore, the ejected air is prevented from being supplied from the main unit at the same temperature, is reliably heated by the tubular heater, and is supplied from the front of the main unit as warm air, including the heat accumulated inside the product, and is supplied indoors. air can be heated. Moreover, since the tubular heater is arranged in a substantially horizontal direction, a wide space can be heated.

Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments described above. Furthermore, the effects described in the embodiments of the present invention are merely a list of the most preferable effects resulting from the present invention, and the effects of the present invention are limited to those described in the embodiments of the present invention. isn't it.

Further, the above-described embodiments have been described in detail to explain the present invention in an easy-to-understand manner, and the present invention is not necessarily limited to having all the configurations described.

The hybrid heater of the present invention can be applied to heating machines that use electric heaters made of various heater members.

1 Hybrid heater 10 Pedestal section 20 Main body section 21 Front protective cover 22 Back cover 22a Swelling section 22b Suction port 30 Tubular heater 31 Central heater 32 Side heater 40 Reflector plate 41 Center side reflector section 42 End side reflector section 40s Slit-shaped opening 50 Air blower 60 Partition wall

Claims (5)

a tubular heater that includes a heater member that generates heat when energized and extends in a predetermined direction;
a reflector located rearward from the tubular heater at a predetermined distance;
a blower that supplies air to the reflector from behind;
A hybrid heater comprising: a main body housing the tubular heater, the reflector, and the blower;
The reflector includes a rearwardly curved portion so as to cover the tubular heater from behind,
A slit -shaped opening is provided in the curved portion of the reflecting plate in a direction intersecting the extending direction of the tubular heater,
A plurality of the slit-shaped openings are arranged in parallel along the extending direction of the tubular heater ,
The slit-shaped opening is formed so that air ejected from the slit-shaped opening flows toward the tubular heater.
Hybrid heater. The cross section of the reflecting plate when viewed from the extending direction of the tubular heater is formed in a substantially semicircular shape.
The hybrid heater according to claim 1. The extending direction of the tubular heater is substantially vertical,
The tubular heater includes side heaters arranged in parallel on the left and right sides in the width direction,
The curved portions of the reflector located behind the side heaters are arranged corresponding to the respective side heaters, and each of the curved portions is located on the center side in the width direction of the main body portion. It is constituted by a center side reflection plate part and an end side reflection plate part located on the outside in the width direction of the main body part,
The slit-shaped opening is bored in the end side reflection plate part,
The hybrid heater according to claim 1 or 2. The extending direction of the tubular heater is substantially horizontal,
The tubular heater includes an upper heater and a lower heater arranged in parallel above and below the center of the main body in the height direction,
The curved portions of the reflector located behind the upper heater and the lower heater are arranged to correspond to the upper heater and the lower heater, respectively, and the curved portions are located above and below the main body. It is constituted by a center side reflection plate part located on the direction center side and an end side reflection plate part located on the end side in the vertical direction of the main body part,
The slit-shaped opening is formed in the end side reflection plate part,
The hybrid heater according to claim 1 or 2. The blower is configured by a cross flow fan having a rotating shaft in substantially the same direction as the extending direction of the tubular heater.
The hybrid heater according to claim 1.